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• YdbTopic.java

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tech.ydb.proto.topic.YdbTopic Maven / Gradle / Ivy

// Generated by the protocol buffer compiler.  DO NOT EDIT!
// source: protos/ydb_topic.proto

package tech.ydb.proto.topic;

public final class YdbTopic {
  private YdbTopic() {}
  public static void registerAllExtensions(
      com.google.protobuf.ExtensionRegistryLite registry) {
  }

  public static void registerAllExtensions(
      com.google.protobuf.ExtensionRegistry registry) {
    registerAllExtensions(
        (com.google.protobuf.ExtensionRegistryLite) registry);
  }
  /**
   * Protobuf enum {@code Ydb.Topic.Codec}
   */
  public enum Codec
      implements com.google.protobuf.ProtocolMessageEnum {
    /**
     * CODEC_UNSPECIFIED = 0;
     */
    CODEC_UNSPECIFIED(0),
    /**
     * CODEC_RAW = 1;
     */
    CODEC_RAW(1),
    /**
     * CODEC_GZIP = 2;
     */
    CODEC_GZIP(2),
    /**
     * CODEC_LZOP = 3;
     */
    CODEC_LZOP(3),
    /**
     * CODEC_ZSTD = 4;
     */
    CODEC_ZSTD(4),
    /**
     * 
     * User-defined codecs from 10000 to 19999
     * 
     *
     * CODEC_CUSTOM = 10000;
     */
    CODEC_CUSTOM(10000),
    UNRECOGNIZED(-1),
    ;

    /**
     * CODEC_UNSPECIFIED = 0;
     */
    public static final int CODEC_UNSPECIFIED_VALUE = 0;
    /**
     * CODEC_RAW = 1;
     */
    public static final int CODEC_RAW_VALUE = 1;
    /**
     * CODEC_GZIP = 2;
     */
    public static final int CODEC_GZIP_VALUE = 2;
    /**
     * CODEC_LZOP = 3;
     */
    public static final int CODEC_LZOP_VALUE = 3;
    /**
     * CODEC_ZSTD = 4;
     */
    public static final int CODEC_ZSTD_VALUE = 4;
    /**
     * 
     * User-defined codecs from 10000 to 19999
     * 
     *
     * CODEC_CUSTOM = 10000;
     */
    public static final int CODEC_CUSTOM_VALUE = 10000;


    public final int getNumber() {
      if (this == UNRECOGNIZED) {
        throw new java.lang.IllegalArgumentException(
            "Can't get the number of an unknown enum value.");
      }
      return value;
    }

    /**
     * @param value The numeric wire value of the corresponding enum entry.
     * @return The enum associated with the given numeric wire value.
     * @deprecated Use {@link #forNumber(int)} instead.
     */
    @java.lang.Deprecated
    public static Codec valueOf(int value) {
      return forNumber(value);
    }

    /**
     * @param value The numeric wire value of the corresponding enum entry.
     * @return The enum associated with the given numeric wire value.
     */
    public static Codec forNumber(int value) {
      switch (value) {
        case 0: return CODEC_UNSPECIFIED;
        case 1: return CODEC_RAW;
        case 2: return CODEC_GZIP;
        case 3: return CODEC_LZOP;
        case 4: return CODEC_ZSTD;
        case 10000: return CODEC_CUSTOM;
        default: return null;
      }
    }

    public static com.google.protobuf.Internal.EnumLiteMap
        internalGetValueMap() {
      return internalValueMap;
    }
    private static final com.google.protobuf.Internal.EnumLiteMap<
        Codec> internalValueMap =
          new com.google.protobuf.Internal.EnumLiteMap() {
            public Codec findValueByNumber(int number) {
              return Codec.forNumber(number);
            }
          };

    public final com.google.protobuf.Descriptors.EnumValueDescriptor
        getValueDescriptor() {
      if (this == UNRECOGNIZED) {
        throw new java.lang.IllegalStateException(
            "Can't get the descriptor of an unrecognized enum value.");
      }
      return getDescriptor().getValues().get(ordinal());
    }
    public final com.google.protobuf.Descriptors.EnumDescriptor
        getDescriptorForType() {
      return getDescriptor();
    }
    public static final com.google.protobuf.Descriptors.EnumDescriptor
        getDescriptor() {
      return tech.ydb.proto.topic.YdbTopic.getDescriptor().getEnumTypes().get(0);
    }

    private static final Codec[] VALUES = values();

    public static Codec valueOf(
        com.google.protobuf.Descriptors.EnumValueDescriptor desc) {
      if (desc.getType() != getDescriptor()) {
        throw new java.lang.IllegalArgumentException(
          "EnumValueDescriptor is not for this type.");
      }
      if (desc.getIndex() == -1) {
        return UNRECOGNIZED;
      }
      return VALUES[desc.getIndex()];
    }

    private final int value;

    private Codec(int value) {
      this.value = value;
    }

    // @@protoc_insertion_point(enum_scope:Ydb.Topic.Codec)
  }

  /**
   * 
   * Metering mode specifies the method used to determine consumption of resources by the topic.
   * This settings will have an effect only in a serverless database.
   * 
   *
   * Protobuf enum {@code Ydb.Topic.MeteringMode}
   */
  public enum MeteringMode
      implements com.google.protobuf.ProtocolMessageEnum {
    /**
     * 
     * Use default
     * 
     *
     * METERING_MODE_UNSPECIFIED = 0;
     */
    METERING_MODE_UNSPECIFIED(0),
    /**
     * 
     * Metering based on resource reservation
     * 
     *
     * METERING_MODE_RESERVED_CAPACITY = 1;
     */
    METERING_MODE_RESERVED_CAPACITY(1),
    /**
     * 
     * Metering based on actual consumption. Default.
     * 
     *
     * METERING_MODE_REQUEST_UNITS = 2;
     */
    METERING_MODE_REQUEST_UNITS(2),
    UNRECOGNIZED(-1),
    ;

    /**
     * 
     * Use default
     * 
     *
     * METERING_MODE_UNSPECIFIED = 0;
     */
    public static final int METERING_MODE_UNSPECIFIED_VALUE = 0;
    /**
     * 
     * Metering based on resource reservation
     * 
     *
     * METERING_MODE_RESERVED_CAPACITY = 1;
     */
    public static final int METERING_MODE_RESERVED_CAPACITY_VALUE = 1;
    /**
     * 
     * Metering based on actual consumption. Default.
     * 
     *
     * METERING_MODE_REQUEST_UNITS = 2;
     */
    public static final int METERING_MODE_REQUEST_UNITS_VALUE = 2;


    public final int getNumber() {
      if (this == UNRECOGNIZED) {
        throw new java.lang.IllegalArgumentException(
            "Can't get the number of an unknown enum value.");
      }
      return value;
    }

    /**
     * @param value The numeric wire value of the corresponding enum entry.
     * @return The enum associated with the given numeric wire value.
     * @deprecated Use {@link #forNumber(int)} instead.
     */
    @java.lang.Deprecated
    public static MeteringMode valueOf(int value) {
      return forNumber(value);
    }

    /**
     * @param value The numeric wire value of the corresponding enum entry.
     * @return The enum associated with the given numeric wire value.
     */
    public static MeteringMode forNumber(int value) {
      switch (value) {
        case 0: return METERING_MODE_UNSPECIFIED;
        case 1: return METERING_MODE_RESERVED_CAPACITY;
        case 2: return METERING_MODE_REQUEST_UNITS;
        default: return null;
      }
    }

    public static com.google.protobuf.Internal.EnumLiteMap
        internalGetValueMap() {
      return internalValueMap;
    }
    private static final com.google.protobuf.Internal.EnumLiteMap<
        MeteringMode> internalValueMap =
          new com.google.protobuf.Internal.EnumLiteMap() {
            public MeteringMode findValueByNumber(int number) {
              return MeteringMode.forNumber(number);
            }
          };

    public final com.google.protobuf.Descriptors.EnumValueDescriptor
        getValueDescriptor() {
      if (this == UNRECOGNIZED) {
        throw new java.lang.IllegalStateException(
            "Can't get the descriptor of an unrecognized enum value.");
      }
      return getDescriptor().getValues().get(ordinal());
    }
    public final com.google.protobuf.Descriptors.EnumDescriptor
        getDescriptorForType() {
      return getDescriptor();
    }
    public static final com.google.protobuf.Descriptors.EnumDescriptor
        getDescriptor() {
      return tech.ydb.proto.topic.YdbTopic.getDescriptor().getEnumTypes().get(1);
    }

    private static final MeteringMode[] VALUES = values();

    public static MeteringMode valueOf(
        com.google.protobuf.Descriptors.EnumValueDescriptor desc) {
      if (desc.getType() != getDescriptor()) {
        throw new java.lang.IllegalArgumentException(
          "EnumValueDescriptor is not for this type.");
      }
      if (desc.getIndex() == -1) {
        return UNRECOGNIZED;
      }
      return VALUES[desc.getIndex()];
    }

    private final int value;

    private MeteringMode(int value) {
      this.value = value;
    }

    // @@protoc_insertion_point(enum_scope:Ydb.Topic.MeteringMode)
  }

  public interface SupportedCodecsOrBuilder extends
      // @@protoc_insertion_point(interface_extends:Ydb.Topic.SupportedCodecs)
      com.google.protobuf.MessageOrBuilder {

    /**
     * 
     * List of supported codecs.
     * See enum Codec above for values.
     * 
     *
     * repeated int32 codecs = 1 [(.Ydb.size) = { ... }
     * @return A list containing the codecs.
     */
    java.util.List getCodecsList();
    /**
     * 
     * List of supported codecs.
     * See enum Codec above for values.
     * 
     *
     * repeated int32 codecs = 1 [(.Ydb.size) = { ... }
     * @return The count of codecs.
     */
    int getCodecsCount();
    /**
     * 
     * List of supported codecs.
     * See enum Codec above for values.
     * 
     *
     * repeated int32 codecs = 1 [(.Ydb.size) = { ... }
     * @param index The index of the element to return.
     * @return The codecs at the given index.
     */
    int getCodecs(int index);
  }
  /**
   * 
   * Description of supported codecs.
   * 
   *
   * Protobuf type {@code Ydb.Topic.SupportedCodecs}
   */
  public static final class SupportedCodecs extends
      com.google.protobuf.GeneratedMessageV3 implements
      // @@protoc_insertion_point(message_implements:Ydb.Topic.SupportedCodecs)
      SupportedCodecsOrBuilder {
  private static final long serialVersionUID = 0L;
    // Use SupportedCodecs.newBuilder() to construct.
    private SupportedCodecs(com.google.protobuf.GeneratedMessageV3.Builder builder) {
      super(builder);
    }
    private SupportedCodecs() {
      codecs_ = emptyIntList();
    }

    @java.lang.Override
    @SuppressWarnings({"unused"})
    protected java.lang.Object newInstance(
        UnusedPrivateParameter unused) {
      return new SupportedCodecs();
    }

    public static final com.google.protobuf.Descriptors.Descriptor
        getDescriptor() {
      return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_SupportedCodecs_descriptor;
    }

    @java.lang.Override
    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
        internalGetFieldAccessorTable() {
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          .ensureFieldAccessorsInitialized(
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    public static final int CODECS_FIELD_NUMBER = 1;
    @SuppressWarnings("serial")
    private com.google.protobuf.Internal.IntList codecs_ =
        emptyIntList();
    /**
     * 
     * List of supported codecs.
     * See enum Codec above for values.
     * 
     *
     * repeated int32 codecs = 1 [(.Ydb.size) = { ... }
     * @return A list containing the codecs.
     */
    @java.lang.Override
    public java.util.List
        getCodecsList() {
      return codecs_;
    }
    /**
     * 
     * List of supported codecs.
     * See enum Codec above for values.
     * 
     *
     * repeated int32 codecs = 1 [(.Ydb.size) = { ... }
     * @return The count of codecs.
     */
    public int getCodecsCount() {
      return codecs_.size();
    }
    /**
     * 
     * List of supported codecs.
     * See enum Codec above for values.
     * 
     *
     * repeated int32 codecs = 1 [(.Ydb.size) = { ... }
     * @param index The index of the element to return.
     * @return The codecs at the given index.
     */
    public int getCodecs(int index) {
      return codecs_.getInt(index);
    }
    private int codecsMemoizedSerializedSize = -1;

    private byte memoizedIsInitialized = -1;
    @java.lang.Override
    public final boolean isInitialized() {
      byte isInitialized = memoizedIsInitialized;
      if (isInitialized == 1) return true;
      if (isInitialized == 0) return false;

      memoizedIsInitialized = 1;
      return true;
    }

    @java.lang.Override
    public void writeTo(com.google.protobuf.CodedOutputStream output)
                        throws java.io.IOException {
      getSerializedSize();
      if (getCodecsList().size() > 0) {
        output.writeUInt32NoTag(10);
        output.writeUInt32NoTag(codecsMemoizedSerializedSize);
      }
      for (int i = 0; i < codecs_.size(); i++) {
        output.writeInt32NoTag(codecs_.getInt(i));
      }
      getUnknownFields().writeTo(output);
    }

    @java.lang.Override
    public int getSerializedSize() {
      int size = memoizedSize;
      if (size != -1) return size;

      size = 0;
      {
        int dataSize = 0;
        for (int i = 0; i < codecs_.size(); i++) {
          dataSize += com.google.protobuf.CodedOutputStream
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        size += dataSize;
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          size += 1;
          size += com.google.protobuf.CodedOutputStream
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        }
        codecsMemoizedSerializedSize = dataSize;
      }
      size += getUnknownFields().getSerializedSize();
      memoizedSize = size;
      return size;
    }

    @java.lang.Override
    public boolean equals(final java.lang.Object obj) {
      if (obj == this) {
       return true;
      }
      if (!(obj instanceof tech.ydb.proto.topic.YdbTopic.SupportedCodecs)) {
        return super.equals(obj);
      }
      tech.ydb.proto.topic.YdbTopic.SupportedCodecs other = (tech.ydb.proto.topic.YdbTopic.SupportedCodecs) obj;

      if (!getCodecsList()
          .equals(other.getCodecsList())) return false;
      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
      return true;
    }

    @java.lang.Override
    public int hashCode() {
      if (memoizedHashCode != 0) {
        return memoizedHashCode;
      }
      int hash = 41;
      hash = (19 * hash) + getDescriptor().hashCode();
      if (getCodecsCount() > 0) {
        hash = (37 * hash) + CODECS_FIELD_NUMBER;
        hash = (53 * hash) + getCodecsList().hashCode();
      }
      hash = (29 * hash) + getUnknownFields().hashCode();
      memoizedHashCode = hash;
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    }

    public static tech.ydb.proto.topic.YdbTopic.SupportedCodecs parseFrom(
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        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data);
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    public static tech.ydb.proto.topic.YdbTopic.SupportedCodecs parseFrom(
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    public static tech.ydb.proto.topic.YdbTopic.SupportedCodecs parseFrom(
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    public static tech.ydb.proto.topic.YdbTopic.SupportedCodecs parseFrom(
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     * 
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     * 
     *
     * Protobuf type {@code Ydb.Topic.SupportedCodecs}
     */
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       * @return The writeRequest.
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest getWriteRequest() {
        if (clientMessageCase_ == 2) {
           return (tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest) clientMessage_;
        }
        return tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest.getDefaultInstance();
      }
      /**
       * .Ydb.Topic.StreamWriteMessage.WriteRequest write_request = 2;
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequestOrBuilder getWriteRequestOrBuilder() {
        if (clientMessageCase_ == 2) {
           return (tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest) clientMessage_;
        }
        return tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest.getDefaultInstance();
      }

      public static final int UPDATE_TOKEN_REQUEST_FIELD_NUMBER = 3;
      /**
       * .Ydb.Topic.UpdateTokenRequest update_token_request = 3;
       * @return Whether the updateTokenRequest field is set.
       */
      @java.lang.Override
      public boolean hasUpdateTokenRequest() {
        return clientMessageCase_ == 3;
      }
      /**
       * .Ydb.Topic.UpdateTokenRequest update_token_request = 3;
       * @return The updateTokenRequest.
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest getUpdateTokenRequest() {
        if (clientMessageCase_ == 3) {
           return (tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest) clientMessage_;
        }
        return tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest.getDefaultInstance();
      }
      /**
       * .Ydb.Topic.UpdateTokenRequest update_token_request = 3;
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.UpdateTokenRequestOrBuilder getUpdateTokenRequestOrBuilder() {
        if (clientMessageCase_ == 3) {
           return (tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest) clientMessage_;
        }
        return tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest.getDefaultInstance();
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      public final boolean isInitialized() {
        byte isInitialized = memoizedIsInitialized;
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        memoizedIsInitialized = 1;
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      @java.lang.Override
      public void writeTo(com.google.protobuf.CodedOutputStream output)
                          throws java.io.IOException {
        if (clientMessageCase_ == 1) {
          output.writeMessage(1, (tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitRequest) clientMessage_);
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        if (clientMessageCase_ == 2) {
          output.writeMessage(2, (tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest) clientMessage_);
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        getUnknownFields().writeTo(output);
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      @java.lang.Override
      public int getSerializedSize() {
        int size = memoizedSize;
        if (size != -1) return size;

        size = 0;
        if (clientMessageCase_ == 1) {
          size += com.google.protobuf.CodedOutputStream
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        size += getUnknownFields().getSerializedSize();
        memoizedSize = size;
        return size;
      }

      @java.lang.Override
      public boolean equals(final java.lang.Object obj) {
        if (obj == this) {
         return true;
        }
        if (!(obj instanceof tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromClient)) {
          return super.equals(obj);
        }
        tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromClient other = (tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromClient) obj;

        if (!getClientMessageCase().equals(other.getClientMessageCase())) return false;
        switch (clientMessageCase_) {
          case 1:
            if (!getInitRequest()
                .equals(other.getInitRequest())) return false;
            break;
          case 2:
            if (!getWriteRequest()
                .equals(other.getWriteRequest())) return false;
            break;
          case 3:
            if (!getUpdateTokenRequest()
                .equals(other.getUpdateTokenRequest())) return false;
            break;
          case 0:
          default:
        }
        if (!getUnknownFields().equals(other.getUnknownFields())) return false;
        return true;
      }

      @java.lang.Override
      public int hashCode() {
        if (memoizedHashCode != 0) {
          return memoizedHashCode;
        }
        int hash = 41;
        hash = (19 * hash) + getDescriptor().hashCode();
        switch (clientMessageCase_) {
          case 1:
            hash = (37 * hash) + INIT_REQUEST_FIELD_NUMBER;
            hash = (53 * hash) + getInitRequest().hashCode();
            break;
          case 2:
            hash = (37 * hash) + WRITE_REQUEST_FIELD_NUMBER;
            hash = (53 * hash) + getWriteRequest().hashCode();
            break;
          case 3:
            hash = (37 * hash) + UPDATE_TOKEN_REQUEST_FIELD_NUMBER;
            hash = (53 * hash) + getUpdateTokenRequest().hashCode();
            break;
          case 0:
          default:
        }
        hash = (29 * hash) + getUnknownFields().hashCode();
        memoizedHashCode = hash;
        return hash;
      }

      public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromClient parseFrom(
          java.nio.ByteBuffer data)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromClient parseFrom(
          java.nio.ByteBuffer data,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data, extensionRegistry);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromClient parseFrom(
          com.google.protobuf.ByteString data)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromClient parseFrom(
          com.google.protobuf.ByteString data,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data, extensionRegistry);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromClient parseFrom(byte[] data)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromClient parseFrom(
          byte[] data,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data, extensionRegistry);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromClient parseFrom(java.io.InputStream input)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseWithIOException(PARSER, input);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromClient parseFrom(
          java.io.InputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseWithIOException(PARSER, input, extensionRegistry);
      }

      public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromClient parseDelimitedFrom(java.io.InputStream input)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseDelimitedWithIOException(PARSER, input);
      }

      public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromClient parseDelimitedFrom(
          java.io.InputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromClient parseFrom(
          com.google.protobuf.CodedInputStream input)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseWithIOException(PARSER, input);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromClient parseFrom(
          com.google.protobuf.CodedInputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseWithIOException(PARSER, input, extensionRegistry);
      }

      @java.lang.Override
      public Builder newBuilderForType() { return newBuilder(); }
      public static Builder newBuilder() {
        return DEFAULT_INSTANCE.toBuilder();
      }
      public static Builder newBuilder(tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromClient prototype) {
        return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
      }
      @java.lang.Override
      public Builder toBuilder() {
        return this == DEFAULT_INSTANCE
            ? new Builder() : new Builder().mergeFrom(this);
      }

      @java.lang.Override
      protected Builder newBuilderForType(
          com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
        Builder builder = new Builder(parent);
        return builder;
      }
      /**
       * 
       * Client-server message for write session. Contains one of:
       *     InitRequest - handshake request.
       *     WriteRequest - portion of data to be written.
       *     UpdateTokenRequest - user credentials if update is needed.
       * 
       *
       * Protobuf type {@code Ydb.Topic.StreamWriteMessage.FromClient}
       */
      public static final class Builder extends
          com.google.protobuf.GeneratedMessageV3.Builder implements
          // @@protoc_insertion_point(builder_implements:Ydb.Topic.StreamWriteMessage.FromClient)
          tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromClientOrBuilder {
        public static final com.google.protobuf.Descriptors.Descriptor
            getDescriptor() {
          return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamWriteMessage_FromClient_descriptor;
        }

        @java.lang.Override
        protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
            internalGetFieldAccessorTable() {
          return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamWriteMessage_FromClient_fieldAccessorTable
              .ensureFieldAccessorsInitialized(
                  tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromClient.class, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromClient.Builder.class);
        }

        // Construct using tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromClient.newBuilder()
        private Builder() {

        }

        private Builder(
            com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
          super(parent);

        }
        @java.lang.Override
        public Builder clear() {
          super.clear();
          bitField0_ = 0;
          if (initRequestBuilder_ != null) {
            initRequestBuilder_.clear();
          }
          if (writeRequestBuilder_ != null) {
            writeRequestBuilder_.clear();
          }
          if (updateTokenRequestBuilder_ != null) {
            updateTokenRequestBuilder_.clear();
          }
          clientMessageCase_ = 0;
          clientMessage_ = null;
          return this;
        }

        @java.lang.Override
        public com.google.protobuf.Descriptors.Descriptor
            getDescriptorForType() {
          return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamWriteMessage_FromClient_descriptor;
        }

        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromClient getDefaultInstanceForType() {
          return tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromClient.getDefaultInstance();
        }

        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromClient build() {
          tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromClient result = buildPartial();
          if (!result.isInitialized()) {
            throw newUninitializedMessageException(result);
          }
          return result;
        }

        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromClient buildPartial() {
          tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromClient result = new tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromClient(this);
          if (bitField0_ != 0) { buildPartial0(result); }
          buildPartialOneofs(result);
          onBuilt();
          return result;
        }

        private void buildPartial0(tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromClient result) {
          int from_bitField0_ = bitField0_;
        }

        private void buildPartialOneofs(tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromClient result) {
          result.clientMessageCase_ = clientMessageCase_;
          result.clientMessage_ = this.clientMessage_;
          if (clientMessageCase_ == 1 &&
              initRequestBuilder_ != null) {
            result.clientMessage_ = initRequestBuilder_.build();
          }
          if (clientMessageCase_ == 2 &&
              writeRequestBuilder_ != null) {
            result.clientMessage_ = writeRequestBuilder_.build();
          }
          if (clientMessageCase_ == 3 &&
              updateTokenRequestBuilder_ != null) {
            result.clientMessage_ = updateTokenRequestBuilder_.build();
          }
        }

        @java.lang.Override
        public Builder clone() {
          return super.clone();
        }
        @java.lang.Override
        public Builder setField(
            com.google.protobuf.Descriptors.FieldDescriptor field,
            java.lang.Object value) {
          return super.setField(field, value);
        }
        @java.lang.Override
        public Builder clearField(
            com.google.protobuf.Descriptors.FieldDescriptor field) {
          return super.clearField(field);
        }
        @java.lang.Override
        public Builder clearOneof(
            com.google.protobuf.Descriptors.OneofDescriptor oneof) {
          return super.clearOneof(oneof);
        }
        @java.lang.Override
        public Builder setRepeatedField(
            com.google.protobuf.Descriptors.FieldDescriptor field,
            int index, java.lang.Object value) {
          return super.setRepeatedField(field, index, value);
        }
        @java.lang.Override
        public Builder addRepeatedField(
            com.google.protobuf.Descriptors.FieldDescriptor field,
            java.lang.Object value) {
          return super.addRepeatedField(field, value);
        }
        @java.lang.Override
        public Builder mergeFrom(com.google.protobuf.Message other) {
          if (other instanceof tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromClient) {
            return mergeFrom((tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromClient)other);
          } else {
            super.mergeFrom(other);
            return this;
          }
        }

        public Builder mergeFrom(tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromClient other) {
          if (other == tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromClient.getDefaultInstance()) return this;
          switch (other.getClientMessageCase()) {
            case INIT_REQUEST: {
              mergeInitRequest(other.getInitRequest());
              break;
            }
            case WRITE_REQUEST: {
              mergeWriteRequest(other.getWriteRequest());
              break;
            }
            case UPDATE_TOKEN_REQUEST: {
              mergeUpdateTokenRequest(other.getUpdateTokenRequest());
              break;
            }
            case CLIENTMESSAGE_NOT_SET: {
              break;
            }
          }
          this.mergeUnknownFields(other.getUnknownFields());
          onChanged();
          return this;
        }

        @java.lang.Override
        public final boolean isInitialized() {
          return true;
        }

        @java.lang.Override
        public Builder mergeFrom(
            com.google.protobuf.CodedInputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws java.io.IOException {
          if (extensionRegistry == null) {
            throw new java.lang.NullPointerException();
          }
          try {
            boolean done = false;
            while (!done) {
              int tag = input.readTag();
              switch (tag) {
                case 0:
                  done = true;
                  break;
                case 10: {
                  input.readMessage(
                      getInitRequestFieldBuilder().getBuilder(),
                      extensionRegistry);
                  clientMessageCase_ = 1;
                  break;
                } // case 10
                case 18: {
                  input.readMessage(
                      getWriteRequestFieldBuilder().getBuilder(),
                      extensionRegistry);
                  clientMessageCase_ = 2;
                  break;
                } // case 18
                case 26: {
                  input.readMessage(
                      getUpdateTokenRequestFieldBuilder().getBuilder(),
                      extensionRegistry);
                  clientMessageCase_ = 3;
                  break;
                } // case 26
                default: {
                  if (!super.parseUnknownField(input, extensionRegistry, tag)) {
                    done = true; // was an endgroup tag
                  }
                  break;
                } // default:
              } // switch (tag)
            } // while (!done)
          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
            throw e.unwrapIOException();
          } finally {
            onChanged();
          } // finally
          return this;
        }
        private int clientMessageCase_ = 0;
        private java.lang.Object clientMessage_;
        public ClientMessageCase
            getClientMessageCase() {
          return ClientMessageCase.forNumber(
              clientMessageCase_);
        }

        public Builder clearClientMessage() {
          clientMessageCase_ = 0;
          clientMessage_ = null;
          onChanged();
          return this;
        }

        private int bitField0_;

        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitRequest, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitRequest.Builder, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitRequestOrBuilder> initRequestBuilder_;
        /**
         * .Ydb.Topic.StreamWriteMessage.InitRequest init_request = 1;
         * @return Whether the initRequest field is set.
         */
        @java.lang.Override
        public boolean hasInitRequest() {
          return clientMessageCase_ == 1;
        }
        /**
         * .Ydb.Topic.StreamWriteMessage.InitRequest init_request = 1;
         * @return The initRequest.
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitRequest getInitRequest() {
          if (initRequestBuilder_ == null) {
            if (clientMessageCase_ == 1) {
              return (tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitRequest) clientMessage_;
            }
            return tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitRequest.getDefaultInstance();
          } else {
            if (clientMessageCase_ == 1) {
              return initRequestBuilder_.getMessage();
            }
            return tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitRequest.getDefaultInstance();
          }
        }
        /**
         * .Ydb.Topic.StreamWriteMessage.InitRequest init_request = 1;
         */
        public Builder setInitRequest(tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitRequest value) {
          if (initRequestBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            clientMessage_ = value;
            onChanged();
          } else {
            initRequestBuilder_.setMessage(value);
          }
          clientMessageCase_ = 1;
          return this;
        }
        /**
         * .Ydb.Topic.StreamWriteMessage.InitRequest init_request = 1;
         */
        public Builder setInitRequest(
            tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitRequest.Builder builderForValue) {
          if (initRequestBuilder_ == null) {
            clientMessage_ = builderForValue.build();
            onChanged();
          } else {
            initRequestBuilder_.setMessage(builderForValue.build());
          }
          clientMessageCase_ = 1;
          return this;
        }
        /**
         * .Ydb.Topic.StreamWriteMessage.InitRequest init_request = 1;
         */
        public Builder mergeInitRequest(tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitRequest value) {
          if (initRequestBuilder_ == null) {
            if (clientMessageCase_ == 1 &&
                clientMessage_ != tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitRequest.getDefaultInstance()) {
              clientMessage_ = tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitRequest.newBuilder((tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitRequest) clientMessage_)
                  .mergeFrom(value).buildPartial();
            } else {
              clientMessage_ = value;
            }
            onChanged();
          } else {
            if (clientMessageCase_ == 1) {
              initRequestBuilder_.mergeFrom(value);
            } else {
              initRequestBuilder_.setMessage(value);
            }
          }
          clientMessageCase_ = 1;
          return this;
        }
        /**
         * .Ydb.Topic.StreamWriteMessage.InitRequest init_request = 1;
         */
        public Builder clearInitRequest() {
          if (initRequestBuilder_ == null) {
            if (clientMessageCase_ == 1) {
              clientMessageCase_ = 0;
              clientMessage_ = null;
              onChanged();
            }
          } else {
            if (clientMessageCase_ == 1) {
              clientMessageCase_ = 0;
              clientMessage_ = null;
            }
            initRequestBuilder_.clear();
          }
          return this;
        }
        /**
         * .Ydb.Topic.StreamWriteMessage.InitRequest init_request = 1;
         */
        public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitRequest.Builder getInitRequestBuilder() {
          return getInitRequestFieldBuilder().getBuilder();
        }
        /**
         * .Ydb.Topic.StreamWriteMessage.InitRequest init_request = 1;
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitRequestOrBuilder getInitRequestOrBuilder() {
          if ((clientMessageCase_ == 1) && (initRequestBuilder_ != null)) {
            return initRequestBuilder_.getMessageOrBuilder();
          } else {
            if (clientMessageCase_ == 1) {
              return (tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitRequest) clientMessage_;
            }
            return tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitRequest.getDefaultInstance();
          }
        }
        /**
         * .Ydb.Topic.StreamWriteMessage.InitRequest init_request = 1;
         */
        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitRequest, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitRequest.Builder, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitRequestOrBuilder> 
            getInitRequestFieldBuilder() {
          if (initRequestBuilder_ == null) {
            if (!(clientMessageCase_ == 1)) {
              clientMessage_ = tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitRequest.getDefaultInstance();
            }
            initRequestBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
                tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitRequest, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitRequest.Builder, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitRequestOrBuilder>(
                    (tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitRequest) clientMessage_,
                    getParentForChildren(),
                    isClean());
            clientMessage_ = null;
          }
          clientMessageCase_ = 1;
          onChanged();
          return initRequestBuilder_;
        }

        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest.Builder, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequestOrBuilder> writeRequestBuilder_;
        /**
         * .Ydb.Topic.StreamWriteMessage.WriteRequest write_request = 2;
         * @return Whether the writeRequest field is set.
         */
        @java.lang.Override
        public boolean hasWriteRequest() {
          return clientMessageCase_ == 2;
        }
        /**
         * .Ydb.Topic.StreamWriteMessage.WriteRequest write_request = 2;
         * @return The writeRequest.
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest getWriteRequest() {
          if (writeRequestBuilder_ == null) {
            if (clientMessageCase_ == 2) {
              return (tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest) clientMessage_;
            }
            return tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest.getDefaultInstance();
          } else {
            if (clientMessageCase_ == 2) {
              return writeRequestBuilder_.getMessage();
            }
            return tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest.getDefaultInstance();
          }
        }
        /**
         * .Ydb.Topic.StreamWriteMessage.WriteRequest write_request = 2;
         */
        public Builder setWriteRequest(tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest value) {
          if (writeRequestBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            clientMessage_ = value;
            onChanged();
          } else {
            writeRequestBuilder_.setMessage(value);
          }
          clientMessageCase_ = 2;
          return this;
        }
        /**
         * .Ydb.Topic.StreamWriteMessage.WriteRequest write_request = 2;
         */
        public Builder setWriteRequest(
            tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest.Builder builderForValue) {
          if (writeRequestBuilder_ == null) {
            clientMessage_ = builderForValue.build();
            onChanged();
          } else {
            writeRequestBuilder_.setMessage(builderForValue.build());
          }
          clientMessageCase_ = 2;
          return this;
        }
        /**
         * .Ydb.Topic.StreamWriteMessage.WriteRequest write_request = 2;
         */
        public Builder mergeWriteRequest(tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest value) {
          if (writeRequestBuilder_ == null) {
            if (clientMessageCase_ == 2 &&
                clientMessage_ != tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest.getDefaultInstance()) {
              clientMessage_ = tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest.newBuilder((tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest) clientMessage_)
                  .mergeFrom(value).buildPartial();
            } else {
              clientMessage_ = value;
            }
            onChanged();
          } else {
            if (clientMessageCase_ == 2) {
              writeRequestBuilder_.mergeFrom(value);
            } else {
              writeRequestBuilder_.setMessage(value);
            }
          }
          clientMessageCase_ = 2;
          return this;
        }
        /**
         * .Ydb.Topic.StreamWriteMessage.WriteRequest write_request = 2;
         */
        public Builder clearWriteRequest() {
          if (writeRequestBuilder_ == null) {
            if (clientMessageCase_ == 2) {
              clientMessageCase_ = 0;
              clientMessage_ = null;
              onChanged();
            }
          } else {
            if (clientMessageCase_ == 2) {
              clientMessageCase_ = 0;
              clientMessage_ = null;
            }
            writeRequestBuilder_.clear();
          }
          return this;
        }
        /**
         * .Ydb.Topic.StreamWriteMessage.WriteRequest write_request = 2;
         */
        public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest.Builder getWriteRequestBuilder() {
          return getWriteRequestFieldBuilder().getBuilder();
        }
        /**
         * .Ydb.Topic.StreamWriteMessage.WriteRequest write_request = 2;
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequestOrBuilder getWriteRequestOrBuilder() {
          if ((clientMessageCase_ == 2) && (writeRequestBuilder_ != null)) {
            return writeRequestBuilder_.getMessageOrBuilder();
          } else {
            if (clientMessageCase_ == 2) {
              return (tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest) clientMessage_;
            }
            return tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest.getDefaultInstance();
          }
        }
        /**
         * .Ydb.Topic.StreamWriteMessage.WriteRequest write_request = 2;
         */
        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest.Builder, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequestOrBuilder> 
            getWriteRequestFieldBuilder() {
          if (writeRequestBuilder_ == null) {
            if (!(clientMessageCase_ == 2)) {
              clientMessage_ = tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest.getDefaultInstance();
            }
            writeRequestBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
                tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest.Builder, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequestOrBuilder>(
                    (tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest) clientMessage_,
                    getParentForChildren(),
                    isClean());
            clientMessage_ = null;
          }
          clientMessageCase_ = 2;
          onChanged();
          return writeRequestBuilder_;
        }

        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest, tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest.Builder, tech.ydb.proto.topic.YdbTopic.UpdateTokenRequestOrBuilder> updateTokenRequestBuilder_;
        /**
         * .Ydb.Topic.UpdateTokenRequest update_token_request = 3;
         * @return Whether the updateTokenRequest field is set.
         */
        @java.lang.Override
        public boolean hasUpdateTokenRequest() {
          return clientMessageCase_ == 3;
        }
        /**
         * .Ydb.Topic.UpdateTokenRequest update_token_request = 3;
         * @return The updateTokenRequest.
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest getUpdateTokenRequest() {
          if (updateTokenRequestBuilder_ == null) {
            if (clientMessageCase_ == 3) {
              return (tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest) clientMessage_;
            }
            return tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest.getDefaultInstance();
          } else {
            if (clientMessageCase_ == 3) {
              return updateTokenRequestBuilder_.getMessage();
            }
            return tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest.getDefaultInstance();
          }
        }
        /**
         * .Ydb.Topic.UpdateTokenRequest update_token_request = 3;
         */
        public Builder setUpdateTokenRequest(tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest value) {
          if (updateTokenRequestBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            clientMessage_ = value;
            onChanged();
          } else {
            updateTokenRequestBuilder_.setMessage(value);
          }
          clientMessageCase_ = 3;
          return this;
        }
        /**
         * .Ydb.Topic.UpdateTokenRequest update_token_request = 3;
         */
        public Builder setUpdateTokenRequest(
            tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest.Builder builderForValue) {
          if (updateTokenRequestBuilder_ == null) {
            clientMessage_ = builderForValue.build();
            onChanged();
          } else {
            updateTokenRequestBuilder_.setMessage(builderForValue.build());
          }
          clientMessageCase_ = 3;
          return this;
        }
        /**
         * .Ydb.Topic.UpdateTokenRequest update_token_request = 3;
         */
        public Builder mergeUpdateTokenRequest(tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest value) {
          if (updateTokenRequestBuilder_ == null) {
            if (clientMessageCase_ == 3 &&
                clientMessage_ != tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest.getDefaultInstance()) {
              clientMessage_ = tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest.newBuilder((tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest) clientMessage_)
                  .mergeFrom(value).buildPartial();
            } else {
              clientMessage_ = value;
            }
            onChanged();
          } else {
            if (clientMessageCase_ == 3) {
              updateTokenRequestBuilder_.mergeFrom(value);
            } else {
              updateTokenRequestBuilder_.setMessage(value);
            }
          }
          clientMessageCase_ = 3;
          return this;
        }
        /**
         * .Ydb.Topic.UpdateTokenRequest update_token_request = 3;
         */
        public Builder clearUpdateTokenRequest() {
          if (updateTokenRequestBuilder_ == null) {
            if (clientMessageCase_ == 3) {
              clientMessageCase_ = 0;
              clientMessage_ = null;
              onChanged();
            }
          } else {
            if (clientMessageCase_ == 3) {
              clientMessageCase_ = 0;
              clientMessage_ = null;
            }
            updateTokenRequestBuilder_.clear();
          }
          return this;
        }
        /**
         * .Ydb.Topic.UpdateTokenRequest update_token_request = 3;
         */
        public tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest.Builder getUpdateTokenRequestBuilder() {
          return getUpdateTokenRequestFieldBuilder().getBuilder();
        }
        /**
         * .Ydb.Topic.UpdateTokenRequest update_token_request = 3;
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.UpdateTokenRequestOrBuilder getUpdateTokenRequestOrBuilder() {
          if ((clientMessageCase_ == 3) && (updateTokenRequestBuilder_ != null)) {
            return updateTokenRequestBuilder_.getMessageOrBuilder();
          } else {
            if (clientMessageCase_ == 3) {
              return (tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest) clientMessage_;
            }
            return tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest.getDefaultInstance();
          }
        }
        /**
         * .Ydb.Topic.UpdateTokenRequest update_token_request = 3;
         */
        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest, tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest.Builder, tech.ydb.proto.topic.YdbTopic.UpdateTokenRequestOrBuilder> 
            getUpdateTokenRequestFieldBuilder() {
          if (updateTokenRequestBuilder_ == null) {
            if (!(clientMessageCase_ == 3)) {
              clientMessage_ = tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest.getDefaultInstance();
            }
            updateTokenRequestBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
                tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest, tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest.Builder, tech.ydb.proto.topic.YdbTopic.UpdateTokenRequestOrBuilder>(
                    (tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest) clientMessage_,
                    getParentForChildren(),
                    isClean());
            clientMessage_ = null;
          }
          clientMessageCase_ = 3;
          onChanged();
          return updateTokenRequestBuilder_;
        }
        @java.lang.Override
        public final Builder setUnknownFields(
            final com.google.protobuf.UnknownFieldSet unknownFields) {
          return super.setUnknownFields(unknownFields);
        }

        @java.lang.Override
        public final Builder mergeUnknownFields(
            final com.google.protobuf.UnknownFieldSet unknownFields) {
          return super.mergeUnknownFields(unknownFields);
        }


        // @@protoc_insertion_point(builder_scope:Ydb.Topic.StreamWriteMessage.FromClient)
      }

      // @@protoc_insertion_point(class_scope:Ydb.Topic.StreamWriteMessage.FromClient)
      private static final tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromClient DEFAULT_INSTANCE;
      static {
        DEFAULT_INSTANCE = new tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromClient();
      }

      public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromClient getDefaultInstance() {
        return DEFAULT_INSTANCE;
      }

      private static final com.google.protobuf.Parser
          PARSER = new com.google.protobuf.AbstractParser() {
        @java.lang.Override
        public FromClient parsePartialFrom(
            com.google.protobuf.CodedInputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws com.google.protobuf.InvalidProtocolBufferException {
          Builder builder = newBuilder();
          try {
            builder.mergeFrom(input, extensionRegistry);
          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
            throw e.setUnfinishedMessage(builder.buildPartial());
          } catch (com.google.protobuf.UninitializedMessageException e) {
            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
          } catch (java.io.IOException e) {
            throw new com.google.protobuf.InvalidProtocolBufferException(e)
                .setUnfinishedMessage(builder.buildPartial());
          }
          return builder.buildPartial();
        }
      };

      public static com.google.protobuf.Parser parser() {
        return PARSER;
      }

      @java.lang.Override
      public com.google.protobuf.Parser getParserForType() {
        return PARSER;
      }

      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromClient getDefaultInstanceForType() {
        return DEFAULT_INSTANCE;
      }

    }

    public interface FromServerOrBuilder extends
        // @@protoc_insertion_point(interface_extends:Ydb.Topic.StreamWriteMessage.FromServer)
        com.google.protobuf.MessageOrBuilder {

      /**
       * 
       * Server status of response.
       * 
       *
       * .Ydb.StatusIds.StatusCode status = 1;
       * @return The enum numeric value on the wire for status.
       */
      int getStatusValue();
      /**
       * 
       * Server status of response.
       * 
       *
       * .Ydb.StatusIds.StatusCode status = 1;
       * @return The status.
       */
      tech.ydb.proto.StatusCodesProtos.StatusIds.StatusCode getStatus();

      /**
       * 
       * Issues if any.
       * 
       *
       * repeated .Ydb.Issue.IssueMessage issues = 2;
       */
      java.util.List 
          getIssuesList();
      /**
       * 
       * Issues if any.
       * 
       *
       * repeated .Ydb.Issue.IssueMessage issues = 2;
       */
      tech.ydb.proto.YdbIssueMessage.IssueMessage getIssues(int index);
      /**
       * 
       * Issues if any.
       * 
       *
       * repeated .Ydb.Issue.IssueMessage issues = 2;
       */
      int getIssuesCount();
      /**
       * 
       * Issues if any.
       * 
       *
       * repeated .Ydb.Issue.IssueMessage issues = 2;
       */
      java.util.List 
          getIssuesOrBuilderList();
      /**
       * 
       * Issues if any.
       * 
       *
       * repeated .Ydb.Issue.IssueMessage issues = 2;
       */
      tech.ydb.proto.YdbIssueMessage.IssueMessageOrBuilder getIssuesOrBuilder(
          int index);

      /**
       * .Ydb.Topic.StreamWriteMessage.InitResponse init_response = 3;
       * @return Whether the initResponse field is set.
       */
      boolean hasInitResponse();
      /**
       * .Ydb.Topic.StreamWriteMessage.InitResponse init_response = 3;
       * @return The initResponse.
       */
      tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitResponse getInitResponse();
      /**
       * .Ydb.Topic.StreamWriteMessage.InitResponse init_response = 3;
       */
      tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitResponseOrBuilder getInitResponseOrBuilder();

      /**
       * .Ydb.Topic.StreamWriteMessage.WriteResponse write_response = 4;
       * @return Whether the writeResponse field is set.
       */
      boolean hasWriteResponse();
      /**
       * .Ydb.Topic.StreamWriteMessage.WriteResponse write_response = 4;
       * @return The writeResponse.
       */
      tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse getWriteResponse();
      /**
       * .Ydb.Topic.StreamWriteMessage.WriteResponse write_response = 4;
       */
      tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponseOrBuilder getWriteResponseOrBuilder();

      /**
       * .Ydb.Topic.UpdateTokenResponse update_token_response = 5;
       * @return Whether the updateTokenResponse field is set.
       */
      boolean hasUpdateTokenResponse();
      /**
       * .Ydb.Topic.UpdateTokenResponse update_token_response = 5;
       * @return The updateTokenResponse.
       */
      tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse getUpdateTokenResponse();
      /**
       * .Ydb.Topic.UpdateTokenResponse update_token_response = 5;
       */
      tech.ydb.proto.topic.YdbTopic.UpdateTokenResponseOrBuilder getUpdateTokenResponseOrBuilder();

      tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromServer.ServerMessageCase getServerMessageCase();
    }
    /**
     * 
     * Server-client message for write session. Contains either non-success status, or one of:
     *     InitResponse - correct handshake response.
     *     WriteResponse - acknowledgment of storing client messages.
     *     UpdateTokenResponse - acknowledgment of reauthentication and reauthorization.
     * 
     *
     * Protobuf type {@code Ydb.Topic.StreamWriteMessage.FromServer}
     */
    public static final class FromServer extends
        com.google.protobuf.GeneratedMessageV3 implements
        // @@protoc_insertion_point(message_implements:Ydb.Topic.StreamWriteMessage.FromServer)
        FromServerOrBuilder {
    private static final long serialVersionUID = 0L;
      // Use FromServer.newBuilder() to construct.
      private FromServer(com.google.protobuf.GeneratedMessageV3.Builder builder) {
        super(builder);
      }
      private FromServer() {
        status_ = 0;
        issues_ = java.util.Collections.emptyList();
      }

      @java.lang.Override
      @SuppressWarnings({"unused"})
      protected java.lang.Object newInstance(
          UnusedPrivateParameter unused) {
        return new FromServer();
      }

      public static final com.google.protobuf.Descriptors.Descriptor
          getDescriptor() {
        return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamWriteMessage_FromServer_descriptor;
      }

      @java.lang.Override
      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
          internalGetFieldAccessorTable() {
        return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamWriteMessage_FromServer_fieldAccessorTable
            .ensureFieldAccessorsInitialized(
                tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromServer.class, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromServer.Builder.class);
      }

      private int serverMessageCase_ = 0;
      @SuppressWarnings("serial")
      private java.lang.Object serverMessage_;
      public enum ServerMessageCase
          implements com.google.protobuf.Internal.EnumLite,
              com.google.protobuf.AbstractMessage.InternalOneOfEnum {
        INIT_RESPONSE(3),
        WRITE_RESPONSE(4),
        UPDATE_TOKEN_RESPONSE(5),
        SERVERMESSAGE_NOT_SET(0);
        private final int value;
        private ServerMessageCase(int value) {
          this.value = value;
        }
        /**
         * @param value The number of the enum to look for.
         * @return The enum associated with the given number.
         * @deprecated Use {@link #forNumber(int)} instead.
         */
        @java.lang.Deprecated
        public static ServerMessageCase valueOf(int value) {
          return forNumber(value);
        }

        public static ServerMessageCase forNumber(int value) {
          switch (value) {
            case 3: return INIT_RESPONSE;
            case 4: return WRITE_RESPONSE;
            case 5: return UPDATE_TOKEN_RESPONSE;
            case 0: return SERVERMESSAGE_NOT_SET;
            default: return null;
          }
        }
        public int getNumber() {
          return this.value;
        }
      };

      public ServerMessageCase
      getServerMessageCase() {
        return ServerMessageCase.forNumber(
            serverMessageCase_);
      }

      public static final int STATUS_FIELD_NUMBER = 1;
      private int status_ = 0;
      /**
       * 
       * Server status of response.
       * 
       *
       * .Ydb.StatusIds.StatusCode status = 1;
       * @return The enum numeric value on the wire for status.
       */
      @java.lang.Override public int getStatusValue() {
        return status_;
      }
      /**
       * 
       * Server status of response.
       * 
       *
       * .Ydb.StatusIds.StatusCode status = 1;
       * @return The status.
       */
      @java.lang.Override public tech.ydb.proto.StatusCodesProtos.StatusIds.StatusCode getStatus() {
        tech.ydb.proto.StatusCodesProtos.StatusIds.StatusCode result = tech.ydb.proto.StatusCodesProtos.StatusIds.StatusCode.forNumber(status_);
        return result == null ? tech.ydb.proto.StatusCodesProtos.StatusIds.StatusCode.UNRECOGNIZED : result;
      }

      public static final int ISSUES_FIELD_NUMBER = 2;
      @SuppressWarnings("serial")
      private java.util.List issues_;
      /**
       * 
       * Issues if any.
       * 
       *
       * repeated .Ydb.Issue.IssueMessage issues = 2;
       */
      @java.lang.Override
      public java.util.List getIssuesList() {
        return issues_;
      }
      /**
       * 
       * Issues if any.
       * 
       *
       * repeated .Ydb.Issue.IssueMessage issues = 2;
       */
      @java.lang.Override
      public java.util.List 
          getIssuesOrBuilderList() {
        return issues_;
      }
      /**
       * 
       * Issues if any.
       * 
       *
       * repeated .Ydb.Issue.IssueMessage issues = 2;
       */
      @java.lang.Override
      public int getIssuesCount() {
        return issues_.size();
      }
      /**
       * 
       * Issues if any.
       * 
       *
       * repeated .Ydb.Issue.IssueMessage issues = 2;
       */
      @java.lang.Override
      public tech.ydb.proto.YdbIssueMessage.IssueMessage getIssues(int index) {
        return issues_.get(index);
      }
      /**
       * 
       * Issues if any.
       * 
       *
       * repeated .Ydb.Issue.IssueMessage issues = 2;
       */
      @java.lang.Override
      public tech.ydb.proto.YdbIssueMessage.IssueMessageOrBuilder getIssuesOrBuilder(
          int index) {
        return issues_.get(index);
      }

      public static final int INIT_RESPONSE_FIELD_NUMBER = 3;
      /**
       * .Ydb.Topic.StreamWriteMessage.InitResponse init_response = 3;
       * @return Whether the initResponse field is set.
       */
      @java.lang.Override
      public boolean hasInitResponse() {
        return serverMessageCase_ == 3;
      }
      /**
       * .Ydb.Topic.StreamWriteMessage.InitResponse init_response = 3;
       * @return The initResponse.
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitResponse getInitResponse() {
        if (serverMessageCase_ == 3) {
           return (tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitResponse) serverMessage_;
        }
        return tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitResponse.getDefaultInstance();
      }
      /**
       * .Ydb.Topic.StreamWriteMessage.InitResponse init_response = 3;
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitResponseOrBuilder getInitResponseOrBuilder() {
        if (serverMessageCase_ == 3) {
           return (tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitResponse) serverMessage_;
        }
        return tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitResponse.getDefaultInstance();
      }

      public static final int WRITE_RESPONSE_FIELD_NUMBER = 4;
      /**
       * .Ydb.Topic.StreamWriteMessage.WriteResponse write_response = 4;
       * @return Whether the writeResponse field is set.
       */
      @java.lang.Override
      public boolean hasWriteResponse() {
        return serverMessageCase_ == 4;
      }
      /**
       * .Ydb.Topic.StreamWriteMessage.WriteResponse write_response = 4;
       * @return The writeResponse.
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse getWriteResponse() {
        if (serverMessageCase_ == 4) {
           return (tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse) serverMessage_;
        }
        return tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.getDefaultInstance();
      }
      /**
       * .Ydb.Topic.StreamWriteMessage.WriteResponse write_response = 4;
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponseOrBuilder getWriteResponseOrBuilder() {
        if (serverMessageCase_ == 4) {
           return (tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse) serverMessage_;
        }
        return tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.getDefaultInstance();
      }

      public static final int UPDATE_TOKEN_RESPONSE_FIELD_NUMBER = 5;
      /**
       * .Ydb.Topic.UpdateTokenResponse update_token_response = 5;
       * @return Whether the updateTokenResponse field is set.
       */
      @java.lang.Override
      public boolean hasUpdateTokenResponse() {
        return serverMessageCase_ == 5;
      }
      /**
       * .Ydb.Topic.UpdateTokenResponse update_token_response = 5;
       * @return The updateTokenResponse.
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse getUpdateTokenResponse() {
        if (serverMessageCase_ == 5) {
           return (tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse) serverMessage_;
        }
        return tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse.getDefaultInstance();
      }
      /**
       * .Ydb.Topic.UpdateTokenResponse update_token_response = 5;
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.UpdateTokenResponseOrBuilder getUpdateTokenResponseOrBuilder() {
        if (serverMessageCase_ == 5) {
           return (tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse) serverMessage_;
        }
        return tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse.getDefaultInstance();
      }

      private byte memoizedIsInitialized = -1;
      @java.lang.Override
      public final boolean isInitialized() {
        byte isInitialized = memoizedIsInitialized;
        if (isInitialized == 1) return true;
        if (isInitialized == 0) return false;

        memoizedIsInitialized = 1;
        return true;
      }

      @java.lang.Override
      public void writeTo(com.google.protobuf.CodedOutputStream output)
                          throws java.io.IOException {
        if (status_ != tech.ydb.proto.StatusCodesProtos.StatusIds.StatusCode.STATUS_CODE_UNSPECIFIED.getNumber()) {
          output.writeEnum(1, status_);
        }
        for (int i = 0; i < issues_.size(); i++) {
          output.writeMessage(2, issues_.get(i));
        }
        if (serverMessageCase_ == 3) {
          output.writeMessage(3, (tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitResponse) serverMessage_);
        }
        if (serverMessageCase_ == 4) {
          output.writeMessage(4, (tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse) serverMessage_);
        }
        if (serverMessageCase_ == 5) {
          output.writeMessage(5, (tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse) serverMessage_);
        }
        getUnknownFields().writeTo(output);
      }

      @java.lang.Override
      public int getSerializedSize() {
        int size = memoizedSize;
        if (size != -1) return size;

        size = 0;
        if (status_ != tech.ydb.proto.StatusCodesProtos.StatusIds.StatusCode.STATUS_CODE_UNSPECIFIED.getNumber()) {
          size += com.google.protobuf.CodedOutputStream
            .computeEnumSize(1, status_);
        }
        for (int i = 0; i < issues_.size(); i++) {
          size += com.google.protobuf.CodedOutputStream
            .computeMessageSize(2, issues_.get(i));
        }
        if (serverMessageCase_ == 3) {
          size += com.google.protobuf.CodedOutputStream
            .computeMessageSize(3, (tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitResponse) serverMessage_);
        }
        if (serverMessageCase_ == 4) {
          size += com.google.protobuf.CodedOutputStream
            .computeMessageSize(4, (tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse) serverMessage_);
        }
        if (serverMessageCase_ == 5) {
          size += com.google.protobuf.CodedOutputStream
            .computeMessageSize(5, (tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse) serverMessage_);
        }
        size += getUnknownFields().getSerializedSize();
        memoizedSize = size;
        return size;
      }

      @java.lang.Override
      public boolean equals(final java.lang.Object obj) {
        if (obj == this) {
         return true;
        }
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        }
        tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromServer other = (tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromServer) obj;

        if (status_ != other.status_) return false;
        if (!getIssuesList()
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        if (!getServerMessageCase().equals(other.getServerMessageCase())) return false;
        switch (serverMessageCase_) {
          case 3:
            if (!getInitResponse()
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            break;
          case 4:
            if (!getWriteResponse()
                .equals(other.getWriteResponse())) return false;
            break;
          case 5:
            if (!getUpdateTokenResponse()
                .equals(other.getUpdateTokenResponse())) return false;
            break;
          case 0:
          default:
        }
        if (!getUnknownFields().equals(other.getUnknownFields())) return false;
        return true;
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      public int hashCode() {
        if (memoizedHashCode != 0) {
          return memoizedHashCode;
        }
        int hash = 41;
        hash = (19 * hash) + getDescriptor().hashCode();
        hash = (37 * hash) + STATUS_FIELD_NUMBER;
        hash = (53 * hash) + status_;
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          hash = (53 * hash) + getIssuesList().hashCode();
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          case 3:
            hash = (37 * hash) + INIT_RESPONSE_FIELD_NUMBER;
            hash = (53 * hash) + getInitResponse().hashCode();
            break;
          case 4:
            hash = (37 * hash) + WRITE_RESPONSE_FIELD_NUMBER;
            hash = (53 * hash) + getWriteResponse().hashCode();
            break;
          case 5:
            hash = (37 * hash) + UPDATE_TOKEN_RESPONSE_FIELD_NUMBER;
            hash = (53 * hash) + getUpdateTokenResponse().hashCode();
            break;
          case 0:
          default:
        }
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        memoizedHashCode = hash;
        return hash;
      }

      public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromServer parseFrom(
          java.nio.ByteBuffer data)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromServer parseFrom(
          java.nio.ByteBuffer data,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data, extensionRegistry);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromServer parseFrom(
          com.google.protobuf.ByteString data)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromServer parseFrom(
          com.google.protobuf.ByteString data,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data, extensionRegistry);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromServer parseFrom(byte[] data)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromServer parseFrom(
          byte[] data,
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          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data, extensionRegistry);
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      public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromServer parseFrom(java.io.InputStream input)
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      public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromServer parseFrom(
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        return com.google.protobuf.GeneratedMessageV3
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      public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromServer parseDelimitedFrom(java.io.InputStream input)
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        return com.google.protobuf.GeneratedMessageV3
            .parseDelimitedWithIOException(PARSER, input);
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      public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromServer parseDelimitedFrom(
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          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
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      public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromServer parseFrom(
          com.google.protobuf.CodedInputStream input)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseWithIOException(PARSER, input);
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      public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromServer parseFrom(
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          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseWithIOException(PARSER, input, extensionRegistry);
      }

      @java.lang.Override
      public Builder newBuilderForType() { return newBuilder(); }
      public static Builder newBuilder() {
        return DEFAULT_INSTANCE.toBuilder();
      }
      public static Builder newBuilder(tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromServer prototype) {
        return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
      }
      @java.lang.Override
      public Builder toBuilder() {
        return this == DEFAULT_INSTANCE
            ? new Builder() : new Builder().mergeFrom(this);
      }

      @java.lang.Override
      protected Builder newBuilderForType(
          com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
        Builder builder = new Builder(parent);
        return builder;
      }
      /**
       * 
       * Server-client message for write session. Contains either non-success status, or one of:
       *     InitResponse - correct handshake response.
       *     WriteResponse - acknowledgment of storing client messages.
       *     UpdateTokenResponse - acknowledgment of reauthentication and reauthorization.
       * 
       *
       * Protobuf type {@code Ydb.Topic.StreamWriteMessage.FromServer}
       */
      public static final class Builder extends
          com.google.protobuf.GeneratedMessageV3.Builder implements
          // @@protoc_insertion_point(builder_implements:Ydb.Topic.StreamWriteMessage.FromServer)
          tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromServerOrBuilder {
        public static final com.google.protobuf.Descriptors.Descriptor
            getDescriptor() {
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        @java.lang.Override
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        // Construct using tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromServer.newBuilder()
        private Builder() {

        }

        private Builder(
            com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
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        @java.lang.Override
        public Builder clear() {
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          bitField0_ = 0;
          status_ = 0;
          if (issuesBuilder_ == null) {
            issues_ = java.util.Collections.emptyList();
          } else {
            issues_ = null;
            issuesBuilder_.clear();
          }
          bitField0_ = (bitField0_ & ~0x00000002);
          if (initResponseBuilder_ != null) {
            initResponseBuilder_.clear();
          }
          if (writeResponseBuilder_ != null) {
            writeResponseBuilder_.clear();
          }
          if (updateTokenResponseBuilder_ != null) {
            updateTokenResponseBuilder_.clear();
          }
          serverMessageCase_ = 0;
          serverMessage_ = null;
          return this;
        }

        @java.lang.Override
        public com.google.protobuf.Descriptors.Descriptor
            getDescriptorForType() {
          return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamWriteMessage_FromServer_descriptor;
        }

        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromServer getDefaultInstanceForType() {
          return tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromServer.getDefaultInstance();
        }

        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromServer build() {
          tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromServer result = buildPartial();
          if (!result.isInitialized()) {
            throw newUninitializedMessageException(result);
          }
          return result;
        }

        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromServer buildPartial() {
          tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromServer result = new tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromServer(this);
          buildPartialRepeatedFields(result);
          if (bitField0_ != 0) { buildPartial0(result); }
          buildPartialOneofs(result);
          onBuilt();
          return result;
        }

        private void buildPartialRepeatedFields(tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromServer result) {
          if (issuesBuilder_ == null) {
            if (((bitField0_ & 0x00000002) != 0)) {
              issues_ = java.util.Collections.unmodifiableList(issues_);
              bitField0_ = (bitField0_ & ~0x00000002);
            }
            result.issues_ = issues_;
          } else {
            result.issues_ = issuesBuilder_.build();
          }
        }

        private void buildPartial0(tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromServer result) {
          int from_bitField0_ = bitField0_;
          if (((from_bitField0_ & 0x00000001) != 0)) {
            result.status_ = status_;
          }
        }

        private void buildPartialOneofs(tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromServer result) {
          result.serverMessageCase_ = serverMessageCase_;
          result.serverMessage_ = this.serverMessage_;
          if (serverMessageCase_ == 3 &&
              initResponseBuilder_ != null) {
            result.serverMessage_ = initResponseBuilder_.build();
          }
          if (serverMessageCase_ == 4 &&
              writeResponseBuilder_ != null) {
            result.serverMessage_ = writeResponseBuilder_.build();
          }
          if (serverMessageCase_ == 5 &&
              updateTokenResponseBuilder_ != null) {
            result.serverMessage_ = updateTokenResponseBuilder_.build();
          }
        }

        @java.lang.Override
        public Builder clone() {
          return super.clone();
        }
        @java.lang.Override
        public Builder setField(
            com.google.protobuf.Descriptors.FieldDescriptor field,
            java.lang.Object value) {
          return super.setField(field, value);
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        @java.lang.Override
        public Builder clearField(
            com.google.protobuf.Descriptors.FieldDescriptor field) {
          return super.clearField(field);
        }
        @java.lang.Override
        public Builder clearOneof(
            com.google.protobuf.Descriptors.OneofDescriptor oneof) {
          return super.clearOneof(oneof);
        }
        @java.lang.Override
        public Builder setRepeatedField(
            com.google.protobuf.Descriptors.FieldDescriptor field,
            int index, java.lang.Object value) {
          return super.setRepeatedField(field, index, value);
        }
        @java.lang.Override
        public Builder addRepeatedField(
            com.google.protobuf.Descriptors.FieldDescriptor field,
            java.lang.Object value) {
          return super.addRepeatedField(field, value);
        }
        @java.lang.Override
        public Builder mergeFrom(com.google.protobuf.Message other) {
          if (other instanceof tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromServer) {
            return mergeFrom((tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromServer)other);
          } else {
            super.mergeFrom(other);
            return this;
          }
        }

        public Builder mergeFrom(tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromServer other) {
          if (other == tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromServer.getDefaultInstance()) return this;
          if (other.status_ != 0) {
            setStatusValue(other.getStatusValue());
          }
          if (issuesBuilder_ == null) {
            if (!other.issues_.isEmpty()) {
              if (issues_.isEmpty()) {
                issues_ = other.issues_;
                bitField0_ = (bitField0_ & ~0x00000002);
              } else {
                ensureIssuesIsMutable();
                issues_.addAll(other.issues_);
              }
              onChanged();
            }
          } else {
            if (!other.issues_.isEmpty()) {
              if (issuesBuilder_.isEmpty()) {
                issuesBuilder_.dispose();
                issuesBuilder_ = null;
                issues_ = other.issues_;
                bitField0_ = (bitField0_ & ~0x00000002);
                issuesBuilder_ = 
                  com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders ?
                     getIssuesFieldBuilder() : null;
              } else {
                issuesBuilder_.addAllMessages(other.issues_);
              }
            }
          }
          switch (other.getServerMessageCase()) {
            case INIT_RESPONSE: {
              mergeInitResponse(other.getInitResponse());
              break;
            }
            case WRITE_RESPONSE: {
              mergeWriteResponse(other.getWriteResponse());
              break;
            }
            case UPDATE_TOKEN_RESPONSE: {
              mergeUpdateTokenResponse(other.getUpdateTokenResponse());
              break;
            }
            case SERVERMESSAGE_NOT_SET: {
              break;
            }
          }
          this.mergeUnknownFields(other.getUnknownFields());
          onChanged();
          return this;
        }

        @java.lang.Override
        public final boolean isInitialized() {
          return true;
        }

        @java.lang.Override
        public Builder mergeFrom(
            com.google.protobuf.CodedInputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws java.io.IOException {
          if (extensionRegistry == null) {
            throw new java.lang.NullPointerException();
          }
          try {
            boolean done = false;
            while (!done) {
              int tag = input.readTag();
              switch (tag) {
                case 0:
                  done = true;
                  break;
                case 8: {
                  status_ = input.readEnum();
                  bitField0_ |= 0x00000001;
                  break;
                } // case 8
                case 18: {
                  tech.ydb.proto.YdbIssueMessage.IssueMessage m =
                      input.readMessage(
                          tech.ydb.proto.YdbIssueMessage.IssueMessage.parser(),
                          extensionRegistry);
                  if (issuesBuilder_ == null) {
                    ensureIssuesIsMutable();
                    issues_.add(m);
                  } else {
                    issuesBuilder_.addMessage(m);
                  }
                  break;
                } // case 18
                case 26: {
                  input.readMessage(
                      getInitResponseFieldBuilder().getBuilder(),
                      extensionRegistry);
                  serverMessageCase_ = 3;
                  break;
                } // case 26
                case 34: {
                  input.readMessage(
                      getWriteResponseFieldBuilder().getBuilder(),
                      extensionRegistry);
                  serverMessageCase_ = 4;
                  break;
                } // case 34
                case 42: {
                  input.readMessage(
                      getUpdateTokenResponseFieldBuilder().getBuilder(),
                      extensionRegistry);
                  serverMessageCase_ = 5;
                  break;
                } // case 42
                default: {
                  if (!super.parseUnknownField(input, extensionRegistry, tag)) {
                    done = true; // was an endgroup tag
                  }
                  break;
                } // default:
              } // switch (tag)
            } // while (!done)
          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
            throw e.unwrapIOException();
          } finally {
            onChanged();
          } // finally
          return this;
        }
        private int serverMessageCase_ = 0;
        private java.lang.Object serverMessage_;
        public ServerMessageCase
            getServerMessageCase() {
          return ServerMessageCase.forNumber(
              serverMessageCase_);
        }

        public Builder clearServerMessage() {
          serverMessageCase_ = 0;
          serverMessage_ = null;
          onChanged();
          return this;
        }

        private int bitField0_;

        private int status_ = 0;
        /**
         * 
         * Server status of response.
         * 
         *
         * .Ydb.StatusIds.StatusCode status = 1;
         * @return The enum numeric value on the wire for status.
         */
        @java.lang.Override public int getStatusValue() {
          return status_;
        }
        /**
         * 
         * Server status of response.
         * 
         *
         * .Ydb.StatusIds.StatusCode status = 1;
         * @param value The enum numeric value on the wire for status to set.
         * @return This builder for chaining.
         */
        public Builder setStatusValue(int value) {
          status_ = value;
          bitField0_ |= 0x00000001;
          onChanged();
          return this;
        }
        /**
         * 
         * Server status of response.
         * 
         *
         * .Ydb.StatusIds.StatusCode status = 1;
         * @return The status.
         */
        @java.lang.Override
        public tech.ydb.proto.StatusCodesProtos.StatusIds.StatusCode getStatus() {
          tech.ydb.proto.StatusCodesProtos.StatusIds.StatusCode result = tech.ydb.proto.StatusCodesProtos.StatusIds.StatusCode.forNumber(status_);
          return result == null ? tech.ydb.proto.StatusCodesProtos.StatusIds.StatusCode.UNRECOGNIZED : result;
        }
        /**
         * 
         * Server status of response.
         * 
         *
         * .Ydb.StatusIds.StatusCode status = 1;
         * @param value The status to set.
         * @return This builder for chaining.
         */
        public Builder setStatus(tech.ydb.proto.StatusCodesProtos.StatusIds.StatusCode value) {
          if (value == null) {
            throw new NullPointerException();
          }
          bitField0_ |= 0x00000001;
          status_ = value.getNumber();
          onChanged();
          return this;
        }
        /**
         * 
         * Server status of response.
         * 
         *
         * .Ydb.StatusIds.StatusCode status = 1;
         * @return This builder for chaining.
         */
        public Builder clearStatus() {
          bitField0_ = (bitField0_ & ~0x00000001);
          status_ = 0;
          onChanged();
          return this;
        }

        private java.util.List issues_ =
          java.util.Collections.emptyList();
        private void ensureIssuesIsMutable() {
          if (!((bitField0_ & 0x00000002) != 0)) {
            issues_ = new java.util.ArrayList(issues_);
            bitField0_ |= 0x00000002;
           }
        }

        private com.google.protobuf.RepeatedFieldBuilderV3<
            tech.ydb.proto.YdbIssueMessage.IssueMessage, tech.ydb.proto.YdbIssueMessage.IssueMessage.Builder, tech.ydb.proto.YdbIssueMessage.IssueMessageOrBuilder> issuesBuilder_;

        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public java.util.List getIssuesList() {
          if (issuesBuilder_ == null) {
            return java.util.Collections.unmodifiableList(issues_);
          } else {
            return issuesBuilder_.getMessageList();
          }
        }
        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public int getIssuesCount() {
          if (issuesBuilder_ == null) {
            return issues_.size();
          } else {
            return issuesBuilder_.getCount();
          }
        }
        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public tech.ydb.proto.YdbIssueMessage.IssueMessage getIssues(int index) {
          if (issuesBuilder_ == null) {
            return issues_.get(index);
          } else {
            return issuesBuilder_.getMessage(index);
          }
        }
        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public Builder setIssues(
            int index, tech.ydb.proto.YdbIssueMessage.IssueMessage value) {
          if (issuesBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            ensureIssuesIsMutable();
            issues_.set(index, value);
            onChanged();
          } else {
            issuesBuilder_.setMessage(index, value);
          }
          return this;
        }
        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public Builder setIssues(
            int index, tech.ydb.proto.YdbIssueMessage.IssueMessage.Builder builderForValue) {
          if (issuesBuilder_ == null) {
            ensureIssuesIsMutable();
            issues_.set(index, builderForValue.build());
            onChanged();
          } else {
            issuesBuilder_.setMessage(index, builderForValue.build());
          }
          return this;
        }
        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public Builder addIssues(tech.ydb.proto.YdbIssueMessage.IssueMessage value) {
          if (issuesBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            ensureIssuesIsMutable();
            issues_.add(value);
            onChanged();
          } else {
            issuesBuilder_.addMessage(value);
          }
          return this;
        }
        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public Builder addIssues(
            int index, tech.ydb.proto.YdbIssueMessage.IssueMessage value) {
          if (issuesBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            ensureIssuesIsMutable();
            issues_.add(index, value);
            onChanged();
          } else {
            issuesBuilder_.addMessage(index, value);
          }
          return this;
        }
        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public Builder addIssues(
            tech.ydb.proto.YdbIssueMessage.IssueMessage.Builder builderForValue) {
          if (issuesBuilder_ == null) {
            ensureIssuesIsMutable();
            issues_.add(builderForValue.build());
            onChanged();
          } else {
            issuesBuilder_.addMessage(builderForValue.build());
          }
          return this;
        }
        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public Builder addIssues(
            int index, tech.ydb.proto.YdbIssueMessage.IssueMessage.Builder builderForValue) {
          if (issuesBuilder_ == null) {
            ensureIssuesIsMutable();
            issues_.add(index, builderForValue.build());
            onChanged();
          } else {
            issuesBuilder_.addMessage(index, builderForValue.build());
          }
          return this;
        }
        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public Builder addAllIssues(
            java.lang.Iterable values) {
          if (issuesBuilder_ == null) {
            ensureIssuesIsMutable();
            com.google.protobuf.AbstractMessageLite.Builder.addAll(
                values, issues_);
            onChanged();
          } else {
            issuesBuilder_.addAllMessages(values);
          }
          return this;
        }
        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public Builder clearIssues() {
          if (issuesBuilder_ == null) {
            issues_ = java.util.Collections.emptyList();
            bitField0_ = (bitField0_ & ~0x00000002);
            onChanged();
          } else {
            issuesBuilder_.clear();
          }
          return this;
        }
        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public Builder removeIssues(int index) {
          if (issuesBuilder_ == null) {
            ensureIssuesIsMutable();
            issues_.remove(index);
            onChanged();
          } else {
            issuesBuilder_.remove(index);
          }
          return this;
        }
        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public tech.ydb.proto.YdbIssueMessage.IssueMessage.Builder getIssuesBuilder(
            int index) {
          return getIssuesFieldBuilder().getBuilder(index);
        }
        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public tech.ydb.proto.YdbIssueMessage.IssueMessageOrBuilder getIssuesOrBuilder(
            int index) {
          if (issuesBuilder_ == null) {
            return issues_.get(index);  } else {
            return issuesBuilder_.getMessageOrBuilder(index);
          }
        }
        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public java.util.List 
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          if (issuesBuilder_ != null) {
            return issuesBuilder_.getMessageOrBuilderList();
          } else {
            return java.util.Collections.unmodifiableList(issues_);
          }
        }
        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public tech.ydb.proto.YdbIssueMessage.IssueMessage.Builder addIssuesBuilder() {
          return getIssuesFieldBuilder().addBuilder(
              tech.ydb.proto.YdbIssueMessage.IssueMessage.getDefaultInstance());
        }
        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public tech.ydb.proto.YdbIssueMessage.IssueMessage.Builder addIssuesBuilder(
            int index) {
          return getIssuesFieldBuilder().addBuilder(
              index, tech.ydb.proto.YdbIssueMessage.IssueMessage.getDefaultInstance());
        }
        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public java.util.List 
             getIssuesBuilderList() {
          return getIssuesFieldBuilder().getBuilderList();
        }
        private com.google.protobuf.RepeatedFieldBuilderV3<
            tech.ydb.proto.YdbIssueMessage.IssueMessage, tech.ydb.proto.YdbIssueMessage.IssueMessage.Builder, tech.ydb.proto.YdbIssueMessage.IssueMessageOrBuilder> 
            getIssuesFieldBuilder() {
          if (issuesBuilder_ == null) {
            issuesBuilder_ = new com.google.protobuf.RepeatedFieldBuilderV3<
                tech.ydb.proto.YdbIssueMessage.IssueMessage, tech.ydb.proto.YdbIssueMessage.IssueMessage.Builder, tech.ydb.proto.YdbIssueMessage.IssueMessageOrBuilder>(
                    issues_,
                    ((bitField0_ & 0x00000002) != 0),
                    getParentForChildren(),
                    isClean());
            issues_ = null;
          }
          return issuesBuilder_;
        }

        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitResponse, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitResponse.Builder, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitResponseOrBuilder> initResponseBuilder_;
        /**
         * .Ydb.Topic.StreamWriteMessage.InitResponse init_response = 3;
         * @return Whether the initResponse field is set.
         */
        @java.lang.Override
        public boolean hasInitResponse() {
          return serverMessageCase_ == 3;
        }
        /**
         * .Ydb.Topic.StreamWriteMessage.InitResponse init_response = 3;
         * @return The initResponse.
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitResponse getInitResponse() {
          if (initResponseBuilder_ == null) {
            if (serverMessageCase_ == 3) {
              return (tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitResponse) serverMessage_;
            }
            return tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitResponse.getDefaultInstance();
          } else {
            if (serverMessageCase_ == 3) {
              return initResponseBuilder_.getMessage();
            }
            return tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitResponse.getDefaultInstance();
          }
        }
        /**
         * .Ydb.Topic.StreamWriteMessage.InitResponse init_response = 3;
         */
        public Builder setInitResponse(tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitResponse value) {
          if (initResponseBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            serverMessage_ = value;
            onChanged();
          } else {
            initResponseBuilder_.setMessage(value);
          }
          serverMessageCase_ = 3;
          return this;
        }
        /**
         * .Ydb.Topic.StreamWriteMessage.InitResponse init_response = 3;
         */
        public Builder setInitResponse(
            tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitResponse.Builder builderForValue) {
          if (initResponseBuilder_ == null) {
            serverMessage_ = builderForValue.build();
            onChanged();
          } else {
            initResponseBuilder_.setMessage(builderForValue.build());
          }
          serverMessageCase_ = 3;
          return this;
        }
        /**
         * .Ydb.Topic.StreamWriteMessage.InitResponse init_response = 3;
         */
        public Builder mergeInitResponse(tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitResponse value) {
          if (initResponseBuilder_ == null) {
            if (serverMessageCase_ == 3 &&
                serverMessage_ != tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitResponse.getDefaultInstance()) {
              serverMessage_ = tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitResponse.newBuilder((tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitResponse) serverMessage_)
                  .mergeFrom(value).buildPartial();
            } else {
              serverMessage_ = value;
            }
            onChanged();
          } else {
            if (serverMessageCase_ == 3) {
              initResponseBuilder_.mergeFrom(value);
            } else {
              initResponseBuilder_.setMessage(value);
            }
          }
          serverMessageCase_ = 3;
          return this;
        }
        /**
         * .Ydb.Topic.StreamWriteMessage.InitResponse init_response = 3;
         */
        public Builder clearInitResponse() {
          if (initResponseBuilder_ == null) {
            if (serverMessageCase_ == 3) {
              serverMessageCase_ = 0;
              serverMessage_ = null;
              onChanged();
            }
          } else {
            if (serverMessageCase_ == 3) {
              serverMessageCase_ = 0;
              serverMessage_ = null;
            }
            initResponseBuilder_.clear();
          }
          return this;
        }
        /**
         * .Ydb.Topic.StreamWriteMessage.InitResponse init_response = 3;
         */
        public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitResponse.Builder getInitResponseBuilder() {
          return getInitResponseFieldBuilder().getBuilder();
        }
        /**
         * .Ydb.Topic.StreamWriteMessage.InitResponse init_response = 3;
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitResponseOrBuilder getInitResponseOrBuilder() {
          if ((serverMessageCase_ == 3) && (initResponseBuilder_ != null)) {
            return initResponseBuilder_.getMessageOrBuilder();
          } else {
            if (serverMessageCase_ == 3) {
              return (tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitResponse) serverMessage_;
            }
            return tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitResponse.getDefaultInstance();
          }
        }
        /**
         * .Ydb.Topic.StreamWriteMessage.InitResponse init_response = 3;
         */
        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitResponse, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitResponse.Builder, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitResponseOrBuilder> 
            getInitResponseFieldBuilder() {
          if (initResponseBuilder_ == null) {
            if (!(serverMessageCase_ == 3)) {
              serverMessage_ = tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitResponse.getDefaultInstance();
            }
            initResponseBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
                tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitResponse, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitResponse.Builder, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitResponseOrBuilder>(
                    (tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitResponse) serverMessage_,
                    getParentForChildren(),
                    isClean());
            serverMessage_ = null;
          }
          serverMessageCase_ = 3;
          onChanged();
          return initResponseBuilder_;
        }

        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.Builder, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponseOrBuilder> writeResponseBuilder_;
        /**
         * .Ydb.Topic.StreamWriteMessage.WriteResponse write_response = 4;
         * @return Whether the writeResponse field is set.
         */
        @java.lang.Override
        public boolean hasWriteResponse() {
          return serverMessageCase_ == 4;
        }
        /**
         * .Ydb.Topic.StreamWriteMessage.WriteResponse write_response = 4;
         * @return The writeResponse.
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse getWriteResponse() {
          if (writeResponseBuilder_ == null) {
            if (serverMessageCase_ == 4) {
              return (tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse) serverMessage_;
            }
            return tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.getDefaultInstance();
          } else {
            if (serverMessageCase_ == 4) {
              return writeResponseBuilder_.getMessage();
            }
            return tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.getDefaultInstance();
          }
        }
        /**
         * .Ydb.Topic.StreamWriteMessage.WriteResponse write_response = 4;
         */
        public Builder setWriteResponse(tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse value) {
          if (writeResponseBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            serverMessage_ = value;
            onChanged();
          } else {
            writeResponseBuilder_.setMessage(value);
          }
          serverMessageCase_ = 4;
          return this;
        }
        /**
         * .Ydb.Topic.StreamWriteMessage.WriteResponse write_response = 4;
         */
        public Builder setWriteResponse(
            tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.Builder builderForValue) {
          if (writeResponseBuilder_ == null) {
            serverMessage_ = builderForValue.build();
            onChanged();
          } else {
            writeResponseBuilder_.setMessage(builderForValue.build());
          }
          serverMessageCase_ = 4;
          return this;
        }
        /**
         * .Ydb.Topic.StreamWriteMessage.WriteResponse write_response = 4;
         */
        public Builder mergeWriteResponse(tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse value) {
          if (writeResponseBuilder_ == null) {
            if (serverMessageCase_ == 4 &&
                serverMessage_ != tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.getDefaultInstance()) {
              serverMessage_ = tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.newBuilder((tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse) serverMessage_)
                  .mergeFrom(value).buildPartial();
            } else {
              serverMessage_ = value;
            }
            onChanged();
          } else {
            if (serverMessageCase_ == 4) {
              writeResponseBuilder_.mergeFrom(value);
            } else {
              writeResponseBuilder_.setMessage(value);
            }
          }
          serverMessageCase_ = 4;
          return this;
        }
        /**
         * .Ydb.Topic.StreamWriteMessage.WriteResponse write_response = 4;
         */
        public Builder clearWriteResponse() {
          if (writeResponseBuilder_ == null) {
            if (serverMessageCase_ == 4) {
              serverMessageCase_ = 0;
              serverMessage_ = null;
              onChanged();
            }
          } else {
            if (serverMessageCase_ == 4) {
              serverMessageCase_ = 0;
              serverMessage_ = null;
            }
            writeResponseBuilder_.clear();
          }
          return this;
        }
        /**
         * .Ydb.Topic.StreamWriteMessage.WriteResponse write_response = 4;
         */
        public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.Builder getWriteResponseBuilder() {
          return getWriteResponseFieldBuilder().getBuilder();
        }
        /**
         * .Ydb.Topic.StreamWriteMessage.WriteResponse write_response = 4;
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponseOrBuilder getWriteResponseOrBuilder() {
          if ((serverMessageCase_ == 4) && (writeResponseBuilder_ != null)) {
            return writeResponseBuilder_.getMessageOrBuilder();
          } else {
            if (serverMessageCase_ == 4) {
              return (tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse) serverMessage_;
            }
            return tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.getDefaultInstance();
          }
        }
        /**
         * .Ydb.Topic.StreamWriteMessage.WriteResponse write_response = 4;
         */
        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.Builder, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponseOrBuilder> 
            getWriteResponseFieldBuilder() {
          if (writeResponseBuilder_ == null) {
            if (!(serverMessageCase_ == 4)) {
              serverMessage_ = tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.getDefaultInstance();
            }
            writeResponseBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
                tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.Builder, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponseOrBuilder>(
                    (tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse) serverMessage_,
                    getParentForChildren(),
                    isClean());
            serverMessage_ = null;
          }
          serverMessageCase_ = 4;
          onChanged();
          return writeResponseBuilder_;
        }

        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse, tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse.Builder, tech.ydb.proto.topic.YdbTopic.UpdateTokenResponseOrBuilder> updateTokenResponseBuilder_;
        /**
         * .Ydb.Topic.UpdateTokenResponse update_token_response = 5;
         * @return Whether the updateTokenResponse field is set.
         */
        @java.lang.Override
        public boolean hasUpdateTokenResponse() {
          return serverMessageCase_ == 5;
        }
        /**
         * .Ydb.Topic.UpdateTokenResponse update_token_response = 5;
         * @return The updateTokenResponse.
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse getUpdateTokenResponse() {
          if (updateTokenResponseBuilder_ == null) {
            if (serverMessageCase_ == 5) {
              return (tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse) serverMessage_;
            }
            return tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse.getDefaultInstance();
          } else {
            if (serverMessageCase_ == 5) {
              return updateTokenResponseBuilder_.getMessage();
            }
            return tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse.getDefaultInstance();
          }
        }
        /**
         * .Ydb.Topic.UpdateTokenResponse update_token_response = 5;
         */
        public Builder setUpdateTokenResponse(tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse value) {
          if (updateTokenResponseBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            serverMessage_ = value;
            onChanged();
          } else {
            updateTokenResponseBuilder_.setMessage(value);
          }
          serverMessageCase_ = 5;
          return this;
        }
        /**
         * .Ydb.Topic.UpdateTokenResponse update_token_response = 5;
         */
        public Builder setUpdateTokenResponse(
            tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse.Builder builderForValue) {
          if (updateTokenResponseBuilder_ == null) {
            serverMessage_ = builderForValue.build();
            onChanged();
          } else {
            updateTokenResponseBuilder_.setMessage(builderForValue.build());
          }
          serverMessageCase_ = 5;
          return this;
        }
        /**
         * .Ydb.Topic.UpdateTokenResponse update_token_response = 5;
         */
        public Builder mergeUpdateTokenResponse(tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse value) {
          if (updateTokenResponseBuilder_ == null) {
            if (serverMessageCase_ == 5 &&
                serverMessage_ != tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse.getDefaultInstance()) {
              serverMessage_ = tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse.newBuilder((tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse) serverMessage_)
                  .mergeFrom(value).buildPartial();
            } else {
              serverMessage_ = value;
            }
            onChanged();
          } else {
            if (serverMessageCase_ == 5) {
              updateTokenResponseBuilder_.mergeFrom(value);
            } else {
              updateTokenResponseBuilder_.setMessage(value);
            }
          }
          serverMessageCase_ = 5;
          return this;
        }
        /**
         * .Ydb.Topic.UpdateTokenResponse update_token_response = 5;
         */
        public Builder clearUpdateTokenResponse() {
          if (updateTokenResponseBuilder_ == null) {
            if (serverMessageCase_ == 5) {
              serverMessageCase_ = 0;
              serverMessage_ = null;
              onChanged();
            }
          } else {
            if (serverMessageCase_ == 5) {
              serverMessageCase_ = 0;
              serverMessage_ = null;
            }
            updateTokenResponseBuilder_.clear();
          }
          return this;
        }
        /**
         * .Ydb.Topic.UpdateTokenResponse update_token_response = 5;
         */
        public tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse.Builder getUpdateTokenResponseBuilder() {
          return getUpdateTokenResponseFieldBuilder().getBuilder();
        }
        /**
         * .Ydb.Topic.UpdateTokenResponse update_token_response = 5;
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.UpdateTokenResponseOrBuilder getUpdateTokenResponseOrBuilder() {
          if ((serverMessageCase_ == 5) && (updateTokenResponseBuilder_ != null)) {
            return updateTokenResponseBuilder_.getMessageOrBuilder();
          } else {
            if (serverMessageCase_ == 5) {
              return (tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse) serverMessage_;
            }
            return tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse.getDefaultInstance();
          }
        }
        /**
         * .Ydb.Topic.UpdateTokenResponse update_token_response = 5;
         */
        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse, tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse.Builder, tech.ydb.proto.topic.YdbTopic.UpdateTokenResponseOrBuilder> 
            getUpdateTokenResponseFieldBuilder() {
          if (updateTokenResponseBuilder_ == null) {
            if (!(serverMessageCase_ == 5)) {
              serverMessage_ = tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse.getDefaultInstance();
            }
            updateTokenResponseBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
                tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse, tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse.Builder, tech.ydb.proto.topic.YdbTopic.UpdateTokenResponseOrBuilder>(
                    (tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse) serverMessage_,
                    getParentForChildren(),
                    isClean());
            serverMessage_ = null;
          }
          serverMessageCase_ = 5;
          onChanged();
          return updateTokenResponseBuilder_;
        }
        @java.lang.Override
        public final Builder setUnknownFields(
            final com.google.protobuf.UnknownFieldSet unknownFields) {
          return super.setUnknownFields(unknownFields);
        }

        @java.lang.Override
        public final Builder mergeUnknownFields(
            final com.google.protobuf.UnknownFieldSet unknownFields) {
          return super.mergeUnknownFields(unknownFields);
        }


        // @@protoc_insertion_point(builder_scope:Ydb.Topic.StreamWriteMessage.FromServer)
      }

      // @@protoc_insertion_point(class_scope:Ydb.Topic.StreamWriteMessage.FromServer)
      private static final tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromServer DEFAULT_INSTANCE;
      static {
        DEFAULT_INSTANCE = new tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromServer();
      }

      public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromServer getDefaultInstance() {
        return DEFAULT_INSTANCE;
      }

      private static final com.google.protobuf.Parser
          PARSER = new com.google.protobuf.AbstractParser() {
        @java.lang.Override
        public FromServer parsePartialFrom(
            com.google.protobuf.CodedInputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws com.google.protobuf.InvalidProtocolBufferException {
          Builder builder = newBuilder();
          try {
            builder.mergeFrom(input, extensionRegistry);
          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
            throw e.setUnfinishedMessage(builder.buildPartial());
          } catch (com.google.protobuf.UninitializedMessageException e) {
            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
          } catch (java.io.IOException e) {
            throw new com.google.protobuf.InvalidProtocolBufferException(e)
                .setUnfinishedMessage(builder.buildPartial());
          }
          return builder.buildPartial();
        }
      };

      public static com.google.protobuf.Parser parser() {
        return PARSER;
      }

      @java.lang.Override
      public com.google.protobuf.Parser getParserForType() {
        return PARSER;
      }

      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.FromServer getDefaultInstanceForType() {
        return DEFAULT_INSTANCE;
      }

    }

    public interface InitRequestOrBuilder extends
        // @@protoc_insertion_point(interface_extends:Ydb.Topic.StreamWriteMessage.InitRequest)
        com.google.protobuf.MessageOrBuilder {

      /**
       * 
       * Full path of topic to write to.
       * 
       *
       * string path = 1;
       * @return The path.
       */
      java.lang.String getPath();
      /**
       * 
       * Full path of topic to write to.
       * 
       *
       * string path = 1;
       * @return The bytes for path.
       */
      com.google.protobuf.ByteString
          getPathBytes();

      /**
       * 
       * Producer identifier of client data stream.
       * Used for message deduplication by sequence numbers.
       * 
       *
       * string producer_id = 2 [(.Ydb.length) = { ... }
       * @return The producerId.
       */
      java.lang.String getProducerId();
      /**
       * 
       * Producer identifier of client data stream.
       * Used for message deduplication by sequence numbers.
       * 
       *
       * string producer_id = 2 [(.Ydb.length) = { ... }
       * @return The bytes for producerId.
       */
      com.google.protobuf.ByteString
          getProducerIdBytes();

      /**
       * 
       * User metadata attached to this write session.
       * Reader will get this session meta data with each message read.
       * 
       *
       * map<string, string> write_session_meta = 3;
       */
      int getWriteSessionMetaCount();
      /**
       * 
       * User metadata attached to this write session.
       * Reader will get this session meta data with each message read.
       * 
       *
       * map<string, string> write_session_meta = 3;
       */
      boolean containsWriteSessionMeta(
          java.lang.String key);
      /**
       * Use {@link #getWriteSessionMetaMap()} instead.
       */
      @java.lang.Deprecated
      java.util.Map
      getWriteSessionMeta();
      /**
       * 
       * User metadata attached to this write session.
       * Reader will get this session meta data with each message read.
       * 
       *
       * map<string, string> write_session_meta = 3;
       */
      java.util.Map
      getWriteSessionMetaMap();
      /**
       * 
       * User metadata attached to this write session.
       * Reader will get this session meta data with each message read.
       * 
       *
       * map<string, string> write_session_meta = 3;
       */
      /* nullable */
java.lang.String getWriteSessionMetaOrDefault(
          java.lang.String key,
          /* nullable */
java.lang.String defaultValue);
      /**
       * 
       * User metadata attached to this write session.
       * Reader will get this session meta data with each message read.
       * 
       *
       * map<string, string> write_session_meta = 3;
       */
      java.lang.String getWriteSessionMetaOrThrow(
          java.lang.String key);

      /**
       * 
       * All messages with given pair (producer_id, message_group_id) go to single partition in order of writes.
       * 
       *
       * string message_group_id = 4 [(.Ydb.length) = { ... }
       * @return Whether the messageGroupId field is set.
       */
      boolean hasMessageGroupId();
      /**
       * 
       * All messages with given pair (producer_id, message_group_id) go to single partition in order of writes.
       * 
       *
       * string message_group_id = 4 [(.Ydb.length) = { ... }
       * @return The messageGroupId.
       */
      java.lang.String getMessageGroupId();
      /**
       * 
       * All messages with given pair (producer_id, message_group_id) go to single partition in order of writes.
       * 
       *
       * string message_group_id = 4 [(.Ydb.length) = { ... }
       * @return The bytes for messageGroupId.
       */
      com.google.protobuf.ByteString
          getMessageGroupIdBytes();

      /**
       * 
       * Explicit partition id to write to.
       * 
       *
       * int64 partition_id = 5;
       * @return Whether the partitionId field is set.
       */
      boolean hasPartitionId();
      /**
       * 
       * Explicit partition id to write to.
       * 
       *
       * int64 partition_id = 5;
       * @return The partitionId.
       */
      long getPartitionId();

      /**
       * 
       * Explicit partition location to write to.
       * 
       *
       * .Ydb.Topic.PartitionWithGeneration partition_with_generation = 7;
       * @return Whether the partitionWithGeneration field is set.
       */
      boolean hasPartitionWithGeneration();
      /**
       * 
       * Explicit partition location to write to.
       * 
       *
       * .Ydb.Topic.PartitionWithGeneration partition_with_generation = 7;
       * @return The partitionWithGeneration.
       */
      tech.ydb.proto.topic.YdbTopic.PartitionWithGeneration getPartitionWithGeneration();
      /**
       * 
       * Explicit partition location to write to.
       * 
       *
       * .Ydb.Topic.PartitionWithGeneration partition_with_generation = 7;
       */
      tech.ydb.proto.topic.YdbTopic.PartitionWithGenerationOrBuilder getPartitionWithGenerationOrBuilder();

      /**
       * 
       * Explicitly request for last sequential number
       * It may be expensive, if producer wrote to many partitions before.
       * 
       *
       * bool get_last_seq_no = 6;
       * @return The getLastSeqNo.
       */
      boolean getGetLastSeqNo();

      tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitRequest.PartitioningCase getPartitioningCase();
    }
    /**
     * 
     * Handshake request that must be sent to server first.
     * 
     *
     * Protobuf type {@code Ydb.Topic.StreamWriteMessage.InitRequest}
     */
    public static final class InitRequest extends
        com.google.protobuf.GeneratedMessageV3 implements
        // @@protoc_insertion_point(message_implements:Ydb.Topic.StreamWriteMessage.InitRequest)
        InitRequestOrBuilder {
    private static final long serialVersionUID = 0L;
      // Use InitRequest.newBuilder() to construct.
      private InitRequest(com.google.protobuf.GeneratedMessageV3.Builder builder) {
        super(builder);
      }
      private InitRequest() {
        path_ = "";
        producerId_ = "";
      }

      @java.lang.Override
      @SuppressWarnings({"unused"})
      protected java.lang.Object newInstance(
          UnusedPrivateParameter unused) {
        return new InitRequest();
      }

      public static final com.google.protobuf.Descriptors.Descriptor
          getDescriptor() {
        return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamWriteMessage_InitRequest_descriptor;
      }

      @SuppressWarnings({"rawtypes"})
      @java.lang.Override
      protected com.google.protobuf.MapField internalGetMapField(
          int number) {
        switch (number) {
          case 3:
            return internalGetWriteSessionMeta();
          default:
            throw new RuntimeException(
                "Invalid map field number: " + number);
        }
      }
      @java.lang.Override
      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
          internalGetFieldAccessorTable() {
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      private int partitioningCase_ = 0;
      @SuppressWarnings("serial")
      private java.lang.Object partitioning_;
      public enum PartitioningCase
          implements com.google.protobuf.Internal.EnumLite,
              com.google.protobuf.AbstractMessage.InternalOneOfEnum {
        MESSAGE_GROUP_ID(4),
        PARTITION_ID(5),
        PARTITION_WITH_GENERATION(7),
        PARTITIONING_NOT_SET(0);
        private final int value;
        private PartitioningCase(int value) {
          this.value = value;
        }
        /**
         * @param value The number of the enum to look for.
         * @return The enum associated with the given number.
         * @deprecated Use {@link #forNumber(int)} instead.
         */
        @java.lang.Deprecated
        public static PartitioningCase valueOf(int value) {
          return forNumber(value);
        }

        public static PartitioningCase forNumber(int value) {
          switch (value) {
            case 4: return MESSAGE_GROUP_ID;
            case 5: return PARTITION_ID;
            case 7: return PARTITION_WITH_GENERATION;
            case 0: return PARTITIONING_NOT_SET;
            default: return null;
          }
        }
        public int getNumber() {
          return this.value;
        }
      };

      public PartitioningCase
      getPartitioningCase() {
        return PartitioningCase.forNumber(
            partitioningCase_);
      }

      public static final int PATH_FIELD_NUMBER = 1;
      @SuppressWarnings("serial")
      private volatile java.lang.Object path_ = "";
      /**
       * 
       * Full path of topic to write to.
       * 
       *
       * string path = 1;
       * @return The path.
       */
      @java.lang.Override
      public java.lang.String getPath() {
        java.lang.Object ref = path_;
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          return (java.lang.String) ref;
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          com.google.protobuf.ByteString bs = 
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          java.lang.String s = bs.toStringUtf8();
          path_ = s;
          return s;
        }
      }
      /**
       * 
       * Full path of topic to write to.
       * 
       *
       * string path = 1;
       * @return The bytes for path.
       */
      @java.lang.Override
      public com.google.protobuf.ByteString
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        java.lang.Object ref = path_;
        if (ref instanceof java.lang.String) {
          com.google.protobuf.ByteString b = 
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          path_ = b;
          return b;
        } else {
          return (com.google.protobuf.ByteString) ref;
        }
      }

      public static final int PRODUCER_ID_FIELD_NUMBER = 2;
      @SuppressWarnings("serial")
      private volatile java.lang.Object producerId_ = "";
      /**
       * 
       * Producer identifier of client data stream.
       * Used for message deduplication by sequence numbers.
       * 
       *
       * string producer_id = 2 [(.Ydb.length) = { ... }
       * @return The producerId.
       */
      @java.lang.Override
      public java.lang.String getProducerId() {
        java.lang.Object ref = producerId_;
        if (ref instanceof java.lang.String) {
          return (java.lang.String) ref;
        } else {
          com.google.protobuf.ByteString bs = 
              (com.google.protobuf.ByteString) ref;
          java.lang.String s = bs.toStringUtf8();
          producerId_ = s;
          return s;
        }
      }
      /**
       * 
       * Producer identifier of client data stream.
       * Used for message deduplication by sequence numbers.
       * 
       *
       * string producer_id = 2 [(.Ydb.length) = { ... }
       * @return The bytes for producerId.
       */
      @java.lang.Override
      public com.google.protobuf.ByteString
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        java.lang.Object ref = producerId_;
        if (ref instanceof java.lang.String) {
          com.google.protobuf.ByteString b = 
              com.google.protobuf.ByteString.copyFromUtf8(
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          producerId_ = b;
          return b;
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          return (com.google.protobuf.ByteString) ref;
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      public static final int WRITE_SESSION_META_FIELD_NUMBER = 3;
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            java.lang.String, java.lang.String> defaultEntry =
                com.google.protobuf.MapEntry
                .newDefaultInstance(
                    tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamWriteMessage_InitRequest_WriteSessionMetaEntry_descriptor, 
                    com.google.protobuf.WireFormat.FieldType.STRING,
                    "",
                    com.google.protobuf.WireFormat.FieldType.STRING,
                    "");
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      @SuppressWarnings("serial")
      private com.google.protobuf.MapField<
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        if (writeSessionMeta_ == null) {
          return com.google.protobuf.MapField.emptyMapField(
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      public int getWriteSessionMetaCount() {
        return internalGetWriteSessionMeta().getMap().size();
      }
      /**
       * 
       * User metadata attached to this write session.
       * Reader will get this session meta data with each message read.
       * 
       *
       * map<string, string> write_session_meta = 3;
       */
      @java.lang.Override
      public boolean containsWriteSessionMeta(
          java.lang.String key) {
        if (key == null) { throw new NullPointerException("map key"); }
        return internalGetWriteSessionMeta().getMap().containsKey(key);
      }
      /**
       * Use {@link #getWriteSessionMetaMap()} instead.
       */
      @java.lang.Override
      @java.lang.Deprecated
      public java.util.Map getWriteSessionMeta() {
        return getWriteSessionMetaMap();
      }
      /**
       * 
       * User metadata attached to this write session.
       * Reader will get this session meta data with each message read.
       * 
       *
       * map<string, string> write_session_meta = 3;
       */
      @java.lang.Override
      public java.util.Map getWriteSessionMetaMap() {
        return internalGetWriteSessionMeta().getMap();
      }
      /**
       * 
       * User metadata attached to this write session.
       * Reader will get this session meta data with each message read.
       * 
       *
       * map<string, string> write_session_meta = 3;
       */
      @java.lang.Override
      public /* nullable */
java.lang.String getWriteSessionMetaOrDefault(
          java.lang.String key,
          /* nullable */
java.lang.String defaultValue) {
        if (key == null) { throw new NullPointerException("map key"); }
        java.util.Map map =
            internalGetWriteSessionMeta().getMap();
        return map.containsKey(key) ? map.get(key) : defaultValue;
      }
      /**
       * 
       * User metadata attached to this write session.
       * Reader will get this session meta data with each message read.
       * 
       *
       * map<string, string> write_session_meta = 3;
       */
      @java.lang.Override
      public java.lang.String getWriteSessionMetaOrThrow(
          java.lang.String key) {
        if (key == null) { throw new NullPointerException("map key"); }
        java.util.Map map =
            internalGetWriteSessionMeta().getMap();
        if (!map.containsKey(key)) {
          throw new java.lang.IllegalArgumentException();
        }
        return map.get(key);
      }

      public static final int MESSAGE_GROUP_ID_FIELD_NUMBER = 4;
      /**
       * 
       * All messages with given pair (producer_id, message_group_id) go to single partition in order of writes.
       * 
       *
       * string message_group_id = 4 [(.Ydb.length) = { ... }
       * @return Whether the messageGroupId field is set.
       */
      public boolean hasMessageGroupId() {
        return partitioningCase_ == 4;
      }
      /**
       * 
       * All messages with given pair (producer_id, message_group_id) go to single partition in order of writes.
       * 
       *
       * string message_group_id = 4 [(.Ydb.length) = { ... }
       * @return The messageGroupId.
       */
      public java.lang.String getMessageGroupId() {
        java.lang.Object ref = "";
        if (partitioningCase_ == 4) {
          ref = partitioning_;
        }
        if (ref instanceof java.lang.String) {
          return (java.lang.String) ref;
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          com.google.protobuf.ByteString bs = 
              (com.google.protobuf.ByteString) ref;
          java.lang.String s = bs.toStringUtf8();
          if (partitioningCase_ == 4) {
            partitioning_ = s;
          }
          return s;
        }
      }
      /**
       * 
       * All messages with given pair (producer_id, message_group_id) go to single partition in order of writes.
       * 
       *
       * string message_group_id = 4 [(.Ydb.length) = { ... }
       * @return The bytes for messageGroupId.
       */
      public com.google.protobuf.ByteString
          getMessageGroupIdBytes() {
        java.lang.Object ref = "";
        if (partitioningCase_ == 4) {
          ref = partitioning_;
        }
        if (ref instanceof java.lang.String) {
          com.google.protobuf.ByteString b = 
              com.google.protobuf.ByteString.copyFromUtf8(
                  (java.lang.String) ref);
          if (partitioningCase_ == 4) {
            partitioning_ = b;
          }
          return b;
        } else {
          return (com.google.protobuf.ByteString) ref;
        }
      }

      public static final int PARTITION_ID_FIELD_NUMBER = 5;
      /**
       * 
       * Explicit partition id to write to.
       * 
       *
       * int64 partition_id = 5;
       * @return Whether the partitionId field is set.
       */
      @java.lang.Override
      public boolean hasPartitionId() {
        return partitioningCase_ == 5;
      }
      /**
       * 
       * Explicit partition id to write to.
       * 
       *
       * int64 partition_id = 5;
       * @return The partitionId.
       */
      @java.lang.Override
      public long getPartitionId() {
        if (partitioningCase_ == 5) {
          return (java.lang.Long) partitioning_;
        }
        return 0L;
      }

      public static final int PARTITION_WITH_GENERATION_FIELD_NUMBER = 7;
      /**
       * 
       * Explicit partition location to write to.
       * 
       *
       * .Ydb.Topic.PartitionWithGeneration partition_with_generation = 7;
       * @return Whether the partitionWithGeneration field is set.
       */
      @java.lang.Override
      public boolean hasPartitionWithGeneration() {
        return partitioningCase_ == 7;
      }
      /**
       * 
       * Explicit partition location to write to.
       * 
       *
       * .Ydb.Topic.PartitionWithGeneration partition_with_generation = 7;
       * @return The partitionWithGeneration.
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.PartitionWithGeneration getPartitionWithGeneration() {
        if (partitioningCase_ == 7) {
           return (tech.ydb.proto.topic.YdbTopic.PartitionWithGeneration) partitioning_;
        }
        return tech.ydb.proto.topic.YdbTopic.PartitionWithGeneration.getDefaultInstance();
      }
      /**
       * 
       * Explicit partition location to write to.
       * 
       *
       * .Ydb.Topic.PartitionWithGeneration partition_with_generation = 7;
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.PartitionWithGenerationOrBuilder getPartitionWithGenerationOrBuilder() {
        if (partitioningCase_ == 7) {
           return (tech.ydb.proto.topic.YdbTopic.PartitionWithGeneration) partitioning_;
        }
        return tech.ydb.proto.topic.YdbTopic.PartitionWithGeneration.getDefaultInstance();
      }

      public static final int GET_LAST_SEQ_NO_FIELD_NUMBER = 6;
      private boolean getLastSeqNo_ = false;
      /**
       * 
       * Explicitly request for last sequential number
       * It may be expensive, if producer wrote to many partitions before.
       * 
       *
       * bool get_last_seq_no = 6;
       * @return The getLastSeqNo.
       */
      @java.lang.Override
      public boolean getGetLastSeqNo() {
        return getLastSeqNo_;
      }

      private byte memoizedIsInitialized = -1;
      @java.lang.Override
      public final boolean isInitialized() {
        byte isInitialized = memoizedIsInitialized;
        if (isInitialized == 1) return true;
        if (isInitialized == 0) return false;

        memoizedIsInitialized = 1;
        return true;
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      @java.lang.Override
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        if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(path_)) {
          com.google.protobuf.GeneratedMessageV3.writeString(output, 1, path_);
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        if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(producerId_)) {
          com.google.protobuf.GeneratedMessageV3.writeString(output, 2, producerId_);
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        com.google.protobuf.GeneratedMessageV3
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            internalGetWriteSessionMeta(),
            WriteSessionMetaDefaultEntryHolder.defaultEntry,
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        if (partitioningCase_ == 4) {
          com.google.protobuf.GeneratedMessageV3.writeString(output, 4, partitioning_);
        }
        if (partitioningCase_ == 5) {
          output.writeInt64(
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        if (getLastSeqNo_ != false) {
          output.writeBool(6, getLastSeqNo_);
        }
        if (partitioningCase_ == 7) {
          output.writeMessage(7, (tech.ydb.proto.topic.YdbTopic.PartitionWithGeneration) partitioning_);
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        getUnknownFields().writeTo(output);
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      @java.lang.Override
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        int size = memoizedSize;
        if (size != -1) return size;

        size = 0;
        if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(path_)) {
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        if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(producerId_)) {
          size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, producerId_);
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        for (java.util.Map.Entry entry
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          com.google.protobuf.MapEntry
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              .setValue(entry.getValue())
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          size += com.google.protobuf.CodedOutputStream
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        if (partitioningCase_ == 4) {
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        if (partitioningCase_ == 5) {
          size += com.google.protobuf.CodedOutputStream
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        if (partitioningCase_ == 7) {
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        size += getUnknownFields().getSerializedSize();
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      @java.lang.Override
      public boolean equals(final java.lang.Object obj) {
        if (obj == this) {
         return true;
        }
        if (!(obj instanceof tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitRequest)) {
          return super.equals(obj);
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        if (!getPath()
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        if (!getProducerId()
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        if (!internalGetWriteSessionMeta().equals(
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        if (getGetLastSeqNo()
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        if (!getPartitioningCase().equals(other.getPartitioningCase())) return false;
        switch (partitioningCase_) {
          case 4:
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            break;
          case 5:
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            break;
          case 7:
            if (!getPartitionWithGeneration()
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            break;
          case 0:
          default:
        }
        if (!getUnknownFields().equals(other.getUnknownFields())) return false;
        return true;
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      @java.lang.Override
      public int hashCode() {
        if (memoizedHashCode != 0) {
          return memoizedHashCode;
        }
        int hash = 41;
        hash = (19 * hash) + getDescriptor().hashCode();
        hash = (37 * hash) + PATH_FIELD_NUMBER;
        hash = (53 * hash) + getPath().hashCode();
        hash = (37 * hash) + PRODUCER_ID_FIELD_NUMBER;
        hash = (53 * hash) + getProducerId().hashCode();
        if (!internalGetWriteSessionMeta().getMap().isEmpty()) {
          hash = (37 * hash) + WRITE_SESSION_META_FIELD_NUMBER;
          hash = (53 * hash) + internalGetWriteSessionMeta().hashCode();
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        hash = (37 * hash) + GET_LAST_SEQ_NO_FIELD_NUMBER;
        hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(
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          case 4:
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            hash = (53 * hash) + getMessageGroupId().hashCode();
            break;
          case 5:
            hash = (37 * hash) + PARTITION_ID_FIELD_NUMBER;
            hash = (53 * hash) + com.google.protobuf.Internal.hashLong(
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          case 7:
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            hash = (53 * hash) + getPartitionWithGeneration().hashCode();
            break;
          case 0:
          default:
        }
        hash = (29 * hash) + getUnknownFields().hashCode();
        memoizedHashCode = hash;
        return hash;
      }

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          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitRequest parseFrom(
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      public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitRequest parseFrom(
          com.google.protobuf.ByteString data,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data, extensionRegistry);
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      public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitRequest parseFrom(byte[] data)
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        return PARSER.parseFrom(data);
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      public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitRequest parseFrom(
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        }

        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitRequest getDefaultInstanceForType() {
          return tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitRequest.getDefaultInstance();
        }

        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitRequest build() {
          tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitRequest result = buildPartial();
          if (!result.isInitialized()) {
            throw newUninitializedMessageException(result);
          }
          return result;
        }

        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitRequest buildPartial() {
          tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitRequest result = new tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitRequest(this);
          if (bitField0_ != 0) { buildPartial0(result); }
          buildPartialOneofs(result);
          onBuilt();
          return result;
        }

        private void buildPartial0(tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitRequest result) {
          int from_bitField0_ = bitField0_;
          if (((from_bitField0_ & 0x00000001) != 0)) {
            result.path_ = path_;
          }
          if (((from_bitField0_ & 0x00000002) != 0)) {
            result.producerId_ = producerId_;
          }
          if (((from_bitField0_ & 0x00000004) != 0)) {
            result.writeSessionMeta_ = internalGetWriteSessionMeta();
            result.writeSessionMeta_.makeImmutable();
          }
          if (((from_bitField0_ & 0x00000040) != 0)) {
            result.getLastSeqNo_ = getLastSeqNo_;
          }
        }

        private void buildPartialOneofs(tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitRequest result) {
          result.partitioningCase_ = partitioningCase_;
          result.partitioning_ = this.partitioning_;
          if (partitioningCase_ == 7 &&
              partitionWithGenerationBuilder_ != null) {
            result.partitioning_ = partitionWithGenerationBuilder_.build();
          }
        }

        @java.lang.Override
        public Builder clone() {
          return super.clone();
        }
        @java.lang.Override
        public Builder setField(
            com.google.protobuf.Descriptors.FieldDescriptor field,
            java.lang.Object value) {
          return super.setField(field, value);
        }
        @java.lang.Override
        public Builder clearField(
            com.google.protobuf.Descriptors.FieldDescriptor field) {
          return super.clearField(field);
        }
        @java.lang.Override
        public Builder clearOneof(
            com.google.protobuf.Descriptors.OneofDescriptor oneof) {
          return super.clearOneof(oneof);
        }
        @java.lang.Override
        public Builder setRepeatedField(
            com.google.protobuf.Descriptors.FieldDescriptor field,
            int index, java.lang.Object value) {
          return super.setRepeatedField(field, index, value);
        }
        @java.lang.Override
        public Builder addRepeatedField(
            com.google.protobuf.Descriptors.FieldDescriptor field,
            java.lang.Object value) {
          return super.addRepeatedField(field, value);
        }
        @java.lang.Override
        public Builder mergeFrom(com.google.protobuf.Message other) {
          if (other instanceof tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitRequest) {
            return mergeFrom((tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitRequest)other);
          } else {
            super.mergeFrom(other);
            return this;
          }
        }

        public Builder mergeFrom(tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitRequest other) {
          if (other == tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitRequest.getDefaultInstance()) return this;
          if (!other.getPath().isEmpty()) {
            path_ = other.path_;
            bitField0_ |= 0x00000001;
            onChanged();
          }
          if (!other.getProducerId().isEmpty()) {
            producerId_ = other.producerId_;
            bitField0_ |= 0x00000002;
            onChanged();
          }
          internalGetMutableWriteSessionMeta().mergeFrom(
              other.internalGetWriteSessionMeta());
          bitField0_ |= 0x00000004;
          if (other.getGetLastSeqNo() != false) {
            setGetLastSeqNo(other.getGetLastSeqNo());
          }
          switch (other.getPartitioningCase()) {
            case MESSAGE_GROUP_ID: {
              partitioningCase_ = 4;
              partitioning_ = other.partitioning_;
              onChanged();
              break;
            }
            case PARTITION_ID: {
              setPartitionId(other.getPartitionId());
              break;
            }
            case PARTITION_WITH_GENERATION: {
              mergePartitionWithGeneration(other.getPartitionWithGeneration());
              break;
            }
            case PARTITIONING_NOT_SET: {
              break;
            }
          }
          this.mergeUnknownFields(other.getUnknownFields());
          onChanged();
          return this;
        }

        @java.lang.Override
        public final boolean isInitialized() {
          return true;
        }

        @java.lang.Override
        public Builder mergeFrom(
            com.google.protobuf.CodedInputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws java.io.IOException {
          if (extensionRegistry == null) {
            throw new java.lang.NullPointerException();
          }
          try {
            boolean done = false;
            while (!done) {
              int tag = input.readTag();
              switch (tag) {
                case 0:
                  done = true;
                  break;
                case 10: {
                  path_ = input.readStringRequireUtf8();
                  bitField0_ |= 0x00000001;
                  break;
                } // case 10
                case 18: {
                  producerId_ = input.readStringRequireUtf8();
                  bitField0_ |= 0x00000002;
                  break;
                } // case 18
                case 26: {
                  com.google.protobuf.MapEntry
                  writeSessionMeta__ = input.readMessage(
                      WriteSessionMetaDefaultEntryHolder.defaultEntry.getParserForType(), extensionRegistry);
                  internalGetMutableWriteSessionMeta().getMutableMap().put(
                      writeSessionMeta__.getKey(), writeSessionMeta__.getValue());
                  bitField0_ |= 0x00000004;
                  break;
                } // case 26
                case 34: {
                  java.lang.String s = input.readStringRequireUtf8();
                  partitioningCase_ = 4;
                  partitioning_ = s;
                  break;
                } // case 34
                case 40: {
                  partitioning_ = input.readInt64();
                  partitioningCase_ = 5;
                  break;
                } // case 40
                case 48: {
                  getLastSeqNo_ = input.readBool();
                  bitField0_ |= 0x00000040;
                  break;
                } // case 48
                case 58: {
                  input.readMessage(
                      getPartitionWithGenerationFieldBuilder().getBuilder(),
                      extensionRegistry);
                  partitioningCase_ = 7;
                  break;
                } // case 58
                default: {
                  if (!super.parseUnknownField(input, extensionRegistry, tag)) {
                    done = true; // was an endgroup tag
                  }
                  break;
                } // default:
              } // switch (tag)
            } // while (!done)
          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
            throw e.unwrapIOException();
          } finally {
            onChanged();
          } // finally
          return this;
        }
        private int partitioningCase_ = 0;
        private java.lang.Object partitioning_;
        public PartitioningCase
            getPartitioningCase() {
          return PartitioningCase.forNumber(
              partitioningCase_);
        }

        public Builder clearPartitioning() {
          partitioningCase_ = 0;
          partitioning_ = null;
          onChanged();
          return this;
        }

        private int bitField0_;

        private java.lang.Object path_ = "";
        /**
         * 
         * Full path of topic to write to.
         * 
         *
         * string path = 1;
         * @return The path.
         */
        public java.lang.String getPath() {
          java.lang.Object ref = path_;
          if (!(ref instanceof java.lang.String)) {
            com.google.protobuf.ByteString bs =
                (com.google.protobuf.ByteString) ref;
            java.lang.String s = bs.toStringUtf8();
            path_ = s;
            return s;
          } else {
            return (java.lang.String) ref;
          }
        }
        /**
         * 
         * Full path of topic to write to.
         * 
         *
         * string path = 1;
         * @return The bytes for path.
         */
        public com.google.protobuf.ByteString
            getPathBytes() {
          java.lang.Object ref = path_;
          if (ref instanceof String) {
            com.google.protobuf.ByteString b = 
                com.google.protobuf.ByteString.copyFromUtf8(
                    (java.lang.String) ref);
            path_ = b;
            return b;
          } else {
            return (com.google.protobuf.ByteString) ref;
          }
        }
        /**
         * 
         * Full path of topic to write to.
         * 
         *
         * string path = 1;
         * @param value The path to set.
         * @return This builder for chaining.
         */
        public Builder setPath(
            java.lang.String value) {
          if (value == null) { throw new NullPointerException(); }
          path_ = value;
          bitField0_ |= 0x00000001;
          onChanged();
          return this;
        }
        /**
         * 
         * Full path of topic to write to.
         * 
         *
         * string path = 1;
         * @return This builder for chaining.
         */
        public Builder clearPath() {
          path_ = getDefaultInstance().getPath();
          bitField0_ = (bitField0_ & ~0x00000001);
          onChanged();
          return this;
        }
        /**
         * 
         * Full path of topic to write to.
         * 
         *
         * string path = 1;
         * @param value The bytes for path to set.
         * @return This builder for chaining.
         */
        public Builder setPathBytes(
            com.google.protobuf.ByteString value) {
          if (value == null) { throw new NullPointerException(); }
          checkByteStringIsUtf8(value);
          path_ = value;
          bitField0_ |= 0x00000001;
          onChanged();
          return this;
        }

        private java.lang.Object producerId_ = "";
        /**
         * 
         * Producer identifier of client data stream.
         * Used for message deduplication by sequence numbers.
         * 
         *
         * string producer_id = 2 [(.Ydb.length) = { ... }
         * @return The producerId.
         */
        public java.lang.String getProducerId() {
          java.lang.Object ref = producerId_;
          if (!(ref instanceof java.lang.String)) {
            com.google.protobuf.ByteString bs =
                (com.google.protobuf.ByteString) ref;
            java.lang.String s = bs.toStringUtf8();
            producerId_ = s;
            return s;
          } else {
            return (java.lang.String) ref;
          }
        }
        /**
         * 
         * Producer identifier of client data stream.
         * Used for message deduplication by sequence numbers.
         * 
         *
         * string producer_id = 2 [(.Ydb.length) = { ... }
         * @return The bytes for producerId.
         */
        public com.google.protobuf.ByteString
            getProducerIdBytes() {
          java.lang.Object ref = producerId_;
          if (ref instanceof String) {
            com.google.protobuf.ByteString b = 
                com.google.protobuf.ByteString.copyFromUtf8(
                    (java.lang.String) ref);
            producerId_ = b;
            return b;
          } else {
            return (com.google.protobuf.ByteString) ref;
          }
        }
        /**
         * 
         * Producer identifier of client data stream.
         * Used for message deduplication by sequence numbers.
         * 
         *
         * string producer_id = 2 [(.Ydb.length) = { ... }
         * @param value The producerId to set.
         * @return This builder for chaining.
         */
        public Builder setProducerId(
            java.lang.String value) {
          if (value == null) { throw new NullPointerException(); }
          producerId_ = value;
          bitField0_ |= 0x00000002;
          onChanged();
          return this;
        }
        /**
         * 
         * Producer identifier of client data stream.
         * Used for message deduplication by sequence numbers.
         * 
         *
         * string producer_id = 2 [(.Ydb.length) = { ... }
         * @return This builder for chaining.
         */
        public Builder clearProducerId() {
          producerId_ = getDefaultInstance().getProducerId();
          bitField0_ = (bitField0_ & ~0x00000002);
          onChanged();
          return this;
        }
        /**
         * 
         * Producer identifier of client data stream.
         * Used for message deduplication by sequence numbers.
         * 
         *
         * string producer_id = 2 [(.Ydb.length) = { ... }
         * @param value The bytes for producerId to set.
         * @return This builder for chaining.
         */
        public Builder setProducerIdBytes(
            com.google.protobuf.ByteString value) {
          if (value == null) { throw new NullPointerException(); }
          checkByteStringIsUtf8(value);
          producerId_ = value;
          bitField0_ |= 0x00000002;
          onChanged();
          return this;
        }

        private com.google.protobuf.MapField<
            java.lang.String, java.lang.String> writeSessionMeta_;
        private com.google.protobuf.MapField
            internalGetWriteSessionMeta() {
          if (writeSessionMeta_ == null) {
            return com.google.protobuf.MapField.emptyMapField(
                WriteSessionMetaDefaultEntryHolder.defaultEntry);
          }
          return writeSessionMeta_;
        }
        private com.google.protobuf.MapField
            internalGetMutableWriteSessionMeta() {
          if (writeSessionMeta_ == null) {
            writeSessionMeta_ = com.google.protobuf.MapField.newMapField(
                WriteSessionMetaDefaultEntryHolder.defaultEntry);
          }
          if (!writeSessionMeta_.isMutable()) {
            writeSessionMeta_ = writeSessionMeta_.copy();
          }
          bitField0_ |= 0x00000004;
          onChanged();
          return writeSessionMeta_;
        }
        public int getWriteSessionMetaCount() {
          return internalGetWriteSessionMeta().getMap().size();
        }
        /**
         * 
         * User metadata attached to this write session.
         * Reader will get this session meta data with each message read.
         * 
         *
         * map<string, string> write_session_meta = 3;
         */
        @java.lang.Override
        public boolean containsWriteSessionMeta(
            java.lang.String key) {
          if (key == null) { throw new NullPointerException("map key"); }
          return internalGetWriteSessionMeta().getMap().containsKey(key);
        }
        /**
         * Use {@link #getWriteSessionMetaMap()} instead.
         */
        @java.lang.Override
        @java.lang.Deprecated
        public java.util.Map getWriteSessionMeta() {
          return getWriteSessionMetaMap();
        }
        /**
         * 
         * User metadata attached to this write session.
         * Reader will get this session meta data with each message read.
         * 
         *
         * map<string, string> write_session_meta = 3;
         */
        @java.lang.Override
        public java.util.Map getWriteSessionMetaMap() {
          return internalGetWriteSessionMeta().getMap();
        }
        /**
         * 
         * User metadata attached to this write session.
         * Reader will get this session meta data with each message read.
         * 
         *
         * map<string, string> write_session_meta = 3;
         */
        @java.lang.Override
        public /* nullable */
java.lang.String getWriteSessionMetaOrDefault(
            java.lang.String key,
            /* nullable */
java.lang.String defaultValue) {
          if (key == null) { throw new NullPointerException("map key"); }
          java.util.Map map =
              internalGetWriteSessionMeta().getMap();
          return map.containsKey(key) ? map.get(key) : defaultValue;
        }
        /**
         * 
         * User metadata attached to this write session.
         * Reader will get this session meta data with each message read.
         * 
         *
         * map<string, string> write_session_meta = 3;
         */
        @java.lang.Override
        public java.lang.String getWriteSessionMetaOrThrow(
            java.lang.String key) {
          if (key == null) { throw new NullPointerException("map key"); }
          java.util.Map map =
              internalGetWriteSessionMeta().getMap();
          if (!map.containsKey(key)) {
            throw new java.lang.IllegalArgumentException();
          }
          return map.get(key);
        }
        public Builder clearWriteSessionMeta() {
          bitField0_ = (bitField0_ & ~0x00000004);
          internalGetMutableWriteSessionMeta().getMutableMap()
              .clear();
          return this;
        }
        /**
         * 
         * User metadata attached to this write session.
         * Reader will get this session meta data with each message read.
         * 
         *
         * map<string, string> write_session_meta = 3;
         */
        public Builder removeWriteSessionMeta(
            java.lang.String key) {
          if (key == null) { throw new NullPointerException("map key"); }
          internalGetMutableWriteSessionMeta().getMutableMap()
              .remove(key);
          return this;
        }
        /**
         * Use alternate mutation accessors instead.
         */
        @java.lang.Deprecated
        public java.util.Map
            getMutableWriteSessionMeta() {
          bitField0_ |= 0x00000004;
          return internalGetMutableWriteSessionMeta().getMutableMap();
        }
        /**
         * 
         * User metadata attached to this write session.
         * Reader will get this session meta data with each message read.
         * 
         *
         * map<string, string> write_session_meta = 3;
         */
        public Builder putWriteSessionMeta(
            java.lang.String key,
            java.lang.String value) {
          if (key == null) { throw new NullPointerException("map key"); }
          if (value == null) { throw new NullPointerException("map value"); }
          internalGetMutableWriteSessionMeta().getMutableMap()
              .put(key, value);
          bitField0_ |= 0x00000004;
          return this;
        }
        /**
         * 
         * User metadata attached to this write session.
         * Reader will get this session meta data with each message read.
         * 
         *
         * map<string, string> write_session_meta = 3;
         */
        public Builder putAllWriteSessionMeta(
            java.util.Map values) {
          internalGetMutableWriteSessionMeta().getMutableMap()
              .putAll(values);
          bitField0_ |= 0x00000004;
          return this;
        }

        /**
         * 
         * All messages with given pair (producer_id, message_group_id) go to single partition in order of writes.
         * 
         *
         * string message_group_id = 4 [(.Ydb.length) = { ... }
         * @return Whether the messageGroupId field is set.
         */
        @java.lang.Override
        public boolean hasMessageGroupId() {
          return partitioningCase_ == 4;
        }
        /**
         * 
         * All messages with given pair (producer_id, message_group_id) go to single partition in order of writes.
         * 
         *
         * string message_group_id = 4 [(.Ydb.length) = { ... }
         * @return The messageGroupId.
         */
        @java.lang.Override
        public java.lang.String getMessageGroupId() {
          java.lang.Object ref = "";
          if (partitioningCase_ == 4) {
            ref = partitioning_;
          }
          if (!(ref instanceof java.lang.String)) {
            com.google.protobuf.ByteString bs =
                (com.google.protobuf.ByteString) ref;
            java.lang.String s = bs.toStringUtf8();
            if (partitioningCase_ == 4) {
              partitioning_ = s;
            }
            return s;
          } else {
            return (java.lang.String) ref;
          }
        }
        /**
         * 
         * All messages with given pair (producer_id, message_group_id) go to single partition in order of writes.
         * 
         *
         * string message_group_id = 4 [(.Ydb.length) = { ... }
         * @return The bytes for messageGroupId.
         */
        @java.lang.Override
        public com.google.protobuf.ByteString
            getMessageGroupIdBytes() {
          java.lang.Object ref = "";
          if (partitioningCase_ == 4) {
            ref = partitioning_;
          }
          if (ref instanceof String) {
            com.google.protobuf.ByteString b = 
                com.google.protobuf.ByteString.copyFromUtf8(
                    (java.lang.String) ref);
            if (partitioningCase_ == 4) {
              partitioning_ = b;
            }
            return b;
          } else {
            return (com.google.protobuf.ByteString) ref;
          }
        }
        /**
         * 
         * All messages with given pair (producer_id, message_group_id) go to single partition in order of writes.
         * 
         *
         * string message_group_id = 4 [(.Ydb.length) = { ... }
         * @param value The messageGroupId to set.
         * @return This builder for chaining.
         */
        public Builder setMessageGroupId(
            java.lang.String value) {
          if (value == null) { throw new NullPointerException(); }
          partitioningCase_ = 4;
          partitioning_ = value;
          onChanged();
          return this;
        }
        /**
         * 
         * All messages with given pair (producer_id, message_group_id) go to single partition in order of writes.
         * 
         *
         * string message_group_id = 4 [(.Ydb.length) = { ... }
         * @return This builder for chaining.
         */
        public Builder clearMessageGroupId() {
          if (partitioningCase_ == 4) {
            partitioningCase_ = 0;
            partitioning_ = null;
            onChanged();
          }
          return this;
        }
        /**
         * 
         * All messages with given pair (producer_id, message_group_id) go to single partition in order of writes.
         * 
         *
         * string message_group_id = 4 [(.Ydb.length) = { ... }
         * @param value The bytes for messageGroupId to set.
         * @return This builder for chaining.
         */
        public Builder setMessageGroupIdBytes(
            com.google.protobuf.ByteString value) {
          if (value == null) { throw new NullPointerException(); }
          checkByteStringIsUtf8(value);
          partitioningCase_ = 4;
          partitioning_ = value;
          onChanged();
          return this;
        }

        /**
         * 
         * Explicit partition id to write to.
         * 
         *
         * int64 partition_id = 5;
         * @return Whether the partitionId field is set.
         */
        public boolean hasPartitionId() {
          return partitioningCase_ == 5;
        }
        /**
         * 
         * Explicit partition id to write to.
         * 
         *
         * int64 partition_id = 5;
         * @return The partitionId.
         */
        public long getPartitionId() {
          if (partitioningCase_ == 5) {
            return (java.lang.Long) partitioning_;
          }
          return 0L;
        }
        /**
         * 
         * Explicit partition id to write to.
         * 
         *
         * int64 partition_id = 5;
         * @param value The partitionId to set.
         * @return This builder for chaining.
         */
        public Builder setPartitionId(long value) {

          partitioningCase_ = 5;
          partitioning_ = value;
          onChanged();
          return this;
        }
        /**
         * 
         * Explicit partition id to write to.
         * 
         *
         * int64 partition_id = 5;
         * @return This builder for chaining.
         */
        public Builder clearPartitionId() {
          if (partitioningCase_ == 5) {
            partitioningCase_ = 0;
            partitioning_ = null;
            onChanged();
          }
          return this;
        }

        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.PartitionWithGeneration, tech.ydb.proto.topic.YdbTopic.PartitionWithGeneration.Builder, tech.ydb.proto.topic.YdbTopic.PartitionWithGenerationOrBuilder> partitionWithGenerationBuilder_;
        /**
         * 
         * Explicit partition location to write to.
         * 
         *
         * .Ydb.Topic.PartitionWithGeneration partition_with_generation = 7;
         * @return Whether the partitionWithGeneration field is set.
         */
        @java.lang.Override
        public boolean hasPartitionWithGeneration() {
          return partitioningCase_ == 7;
        }
        /**
         * 
         * Explicit partition location to write to.
         * 
         *
         * .Ydb.Topic.PartitionWithGeneration partition_with_generation = 7;
         * @return The partitionWithGeneration.
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.PartitionWithGeneration getPartitionWithGeneration() {
          if (partitionWithGenerationBuilder_ == null) {
            if (partitioningCase_ == 7) {
              return (tech.ydb.proto.topic.YdbTopic.PartitionWithGeneration) partitioning_;
            }
            return tech.ydb.proto.topic.YdbTopic.PartitionWithGeneration.getDefaultInstance();
          } else {
            if (partitioningCase_ == 7) {
              return partitionWithGenerationBuilder_.getMessage();
            }
            return tech.ydb.proto.topic.YdbTopic.PartitionWithGeneration.getDefaultInstance();
          }
        }
        /**
         * 
         * Explicit partition location to write to.
         * 
         *
         * .Ydb.Topic.PartitionWithGeneration partition_with_generation = 7;
         */
        public Builder setPartitionWithGeneration(tech.ydb.proto.topic.YdbTopic.PartitionWithGeneration value) {
          if (partitionWithGenerationBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            partitioning_ = value;
            onChanged();
          } else {
            partitionWithGenerationBuilder_.setMessage(value);
          }
          partitioningCase_ = 7;
          return this;
        }
        /**
         * 
         * Explicit partition location to write to.
         * 
         *
         * .Ydb.Topic.PartitionWithGeneration partition_with_generation = 7;
         */
        public Builder setPartitionWithGeneration(
            tech.ydb.proto.topic.YdbTopic.PartitionWithGeneration.Builder builderForValue) {
          if (partitionWithGenerationBuilder_ == null) {
            partitioning_ = builderForValue.build();
            onChanged();
          } else {
            partitionWithGenerationBuilder_.setMessage(builderForValue.build());
          }
          partitioningCase_ = 7;
          return this;
        }
        /**
         * 
         * Explicit partition location to write to.
         * 
         *
         * .Ydb.Topic.PartitionWithGeneration partition_with_generation = 7;
         */
        public Builder mergePartitionWithGeneration(tech.ydb.proto.topic.YdbTopic.PartitionWithGeneration value) {
          if (partitionWithGenerationBuilder_ == null) {
            if (partitioningCase_ == 7 &&
                partitioning_ != tech.ydb.proto.topic.YdbTopic.PartitionWithGeneration.getDefaultInstance()) {
              partitioning_ = tech.ydb.proto.topic.YdbTopic.PartitionWithGeneration.newBuilder((tech.ydb.proto.topic.YdbTopic.PartitionWithGeneration) partitioning_)
                  .mergeFrom(value).buildPartial();
            } else {
              partitioning_ = value;
            }
            onChanged();
          } else {
            if (partitioningCase_ == 7) {
              partitionWithGenerationBuilder_.mergeFrom(value);
            } else {
              partitionWithGenerationBuilder_.setMessage(value);
            }
          }
          partitioningCase_ = 7;
          return this;
        }
        /**
         * 
         * Explicit partition location to write to.
         * 
         *
         * .Ydb.Topic.PartitionWithGeneration partition_with_generation = 7;
         */
        public Builder clearPartitionWithGeneration() {
          if (partitionWithGenerationBuilder_ == null) {
            if (partitioningCase_ == 7) {
              partitioningCase_ = 0;
              partitioning_ = null;
              onChanged();
            }
          } else {
            if (partitioningCase_ == 7) {
              partitioningCase_ = 0;
              partitioning_ = null;
            }
            partitionWithGenerationBuilder_.clear();
          }
          return this;
        }
        /**
         * 
         * Explicit partition location to write to.
         * 
         *
         * .Ydb.Topic.PartitionWithGeneration partition_with_generation = 7;
         */
        public tech.ydb.proto.topic.YdbTopic.PartitionWithGeneration.Builder getPartitionWithGenerationBuilder() {
          return getPartitionWithGenerationFieldBuilder().getBuilder();
        }
        /**
         * 
         * Explicit partition location to write to.
         * 
         *
         * .Ydb.Topic.PartitionWithGeneration partition_with_generation = 7;
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.PartitionWithGenerationOrBuilder getPartitionWithGenerationOrBuilder() {
          if ((partitioningCase_ == 7) && (partitionWithGenerationBuilder_ != null)) {
            return partitionWithGenerationBuilder_.getMessageOrBuilder();
          } else {
            if (partitioningCase_ == 7) {
              return (tech.ydb.proto.topic.YdbTopic.PartitionWithGeneration) partitioning_;
            }
            return tech.ydb.proto.topic.YdbTopic.PartitionWithGeneration.getDefaultInstance();
          }
        }
        /**
         * 
         * Explicit partition location to write to.
         * 
         *
         * .Ydb.Topic.PartitionWithGeneration partition_with_generation = 7;
         */
        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.PartitionWithGeneration, tech.ydb.proto.topic.YdbTopic.PartitionWithGeneration.Builder, tech.ydb.proto.topic.YdbTopic.PartitionWithGenerationOrBuilder> 
            getPartitionWithGenerationFieldBuilder() {
          if (partitionWithGenerationBuilder_ == null) {
            if (!(partitioningCase_ == 7)) {
              partitioning_ = tech.ydb.proto.topic.YdbTopic.PartitionWithGeneration.getDefaultInstance();
            }
            partitionWithGenerationBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
                tech.ydb.proto.topic.YdbTopic.PartitionWithGeneration, tech.ydb.proto.topic.YdbTopic.PartitionWithGeneration.Builder, tech.ydb.proto.topic.YdbTopic.PartitionWithGenerationOrBuilder>(
                    (tech.ydb.proto.topic.YdbTopic.PartitionWithGeneration) partitioning_,
                    getParentForChildren(),
                    isClean());
            partitioning_ = null;
          }
          partitioningCase_ = 7;
          onChanged();
          return partitionWithGenerationBuilder_;
        }

        private boolean getLastSeqNo_ ;
        /**
         * 
         * Explicitly request for last sequential number
         * It may be expensive, if producer wrote to many partitions before.
         * 
         *
         * bool get_last_seq_no = 6;
         * @return The getLastSeqNo.
         */
        @java.lang.Override
        public boolean getGetLastSeqNo() {
          return getLastSeqNo_;
        }
        /**
         * 
         * Explicitly request for last sequential number
         * It may be expensive, if producer wrote to many partitions before.
         * 
         *
         * bool get_last_seq_no = 6;
         * @param value The getLastSeqNo to set.
         * @return This builder for chaining.
         */
        public Builder setGetLastSeqNo(boolean value) {

          getLastSeqNo_ = value;
          bitField0_ |= 0x00000040;
          onChanged();
          return this;
        }
        /**
         * 
         * Explicitly request for last sequential number
         * It may be expensive, if producer wrote to many partitions before.
         * 
         *
         * bool get_last_seq_no = 6;
         * @return This builder for chaining.
         */
        public Builder clearGetLastSeqNo() {
          bitField0_ = (bitField0_ & ~0x00000040);
          getLastSeqNo_ = false;
          onChanged();
          return this;
        }
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        }

        @java.lang.Override
        public final Builder mergeUnknownFields(
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        // @@protoc_insertion_point(builder_scope:Ydb.Topic.StreamWriteMessage.InitRequest)
      }

      // @@protoc_insertion_point(class_scope:Ydb.Topic.StreamWriteMessage.InitRequest)
      private static final tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitRequest DEFAULT_INSTANCE;
      static {
        DEFAULT_INSTANCE = new tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitRequest();
      }

      public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitRequest getDefaultInstance() {
        return DEFAULT_INSTANCE;
      }

      private static final com.google.protobuf.Parser
          PARSER = new com.google.protobuf.AbstractParser() {
        @java.lang.Override
        public InitRequest parsePartialFrom(
            com.google.protobuf.CodedInputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws com.google.protobuf.InvalidProtocolBufferException {
          Builder builder = newBuilder();
          try {
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            throw e.setUnfinishedMessage(builder.buildPartial());
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      public static com.google.protobuf.Parser parser() {
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      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitRequest getDefaultInstanceForType() {
        return DEFAULT_INSTANCE;
      }

    }

    public interface InitResponseOrBuilder extends
        // @@protoc_insertion_point(interface_extends:Ydb.Topic.StreamWriteMessage.InitResponse)
        com.google.protobuf.MessageOrBuilder {

      /**
       * 
       * Last persisted message's sequence number for this producer.
       * Zero for new producer.
       * 
       *
       * int64 last_seq_no = 1;
       * @return The lastSeqNo.
       */
      long getLastSeqNo();

      /**
       * 
       * Unique identifier of write session. Used for debug purposes.
       * 
       *
       * string session_id = 2;
       * @return The sessionId.
       */
      java.lang.String getSessionId();
      /**
       * 
       * Unique identifier of write session. Used for debug purposes.
       * 
       *
       * string session_id = 2;
       * @return The bytes for sessionId.
       */
      com.google.protobuf.ByteString
          getSessionIdBytes();

      /**
       * 
       * Identifier of partition that is matched for this write session.
       * 
       *
       * int64 partition_id = 3;
       * @return The partitionId.
       */
      long getPartitionId();

      /**
       * 
       * Client can only use compression codecs from this set to write messages to topic.
       * Otherwise session will be closed with BAD_REQUEST.
       * 
       *
       * .Ydb.Topic.SupportedCodecs supported_codecs = 4;
       * @return Whether the supportedCodecs field is set.
       */
      boolean hasSupportedCodecs();
      /**
       * 
       * Client can only use compression codecs from this set to write messages to topic.
       * Otherwise session will be closed with BAD_REQUEST.
       * 
       *
       * .Ydb.Topic.SupportedCodecs supported_codecs = 4;
       * @return The supportedCodecs.
       */
      tech.ydb.proto.topic.YdbTopic.SupportedCodecs getSupportedCodecs();
      /**
       * 
       * Client can only use compression codecs from this set to write messages to topic.
       * Otherwise session will be closed with BAD_REQUEST.
       * 
       *
       * .Ydb.Topic.SupportedCodecs supported_codecs = 4;
       */
      tech.ydb.proto.topic.YdbTopic.SupportedCodecsOrBuilder getSupportedCodecsOrBuilder();
    }
    /**
     * 
     * Response to the handshake.
     * 
     *
     * Protobuf type {@code Ydb.Topic.StreamWriteMessage.InitResponse}
     */
    public static final class InitResponse extends
        com.google.protobuf.GeneratedMessageV3 implements
        // @@protoc_insertion_point(message_implements:Ydb.Topic.StreamWriteMessage.InitResponse)
        InitResponseOrBuilder {
    private static final long serialVersionUID = 0L;
      // Use InitResponse.newBuilder() to construct.
      private InitResponse(com.google.protobuf.GeneratedMessageV3.Builder builder) {
        super(builder);
      }
      private InitResponse() {
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      }

      @java.lang.Override
      @SuppressWarnings({"unused"})
      protected java.lang.Object newInstance(
          UnusedPrivateParameter unused) {
        return new InitResponse();
      }

      public static final com.google.protobuf.Descriptors.Descriptor
          getDescriptor() {
        return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamWriteMessage_InitResponse_descriptor;
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      private int bitField0_;
      public static final int LAST_SEQ_NO_FIELD_NUMBER = 1;
      private long lastSeqNo_ = 0L;
      /**
       * 
       * Last persisted message's sequence number for this producer.
       * Zero for new producer.
       * 
       *
       * int64 last_seq_no = 1;
       * @return The lastSeqNo.
       */
      @java.lang.Override
      public long getLastSeqNo() {
        return lastSeqNo_;
      }

      public static final int SESSION_ID_FIELD_NUMBER = 2;
      @SuppressWarnings("serial")
      private volatile java.lang.Object sessionId_ = "";
      /**
       * 
       * Unique identifier of write session. Used for debug purposes.
       * 
       *
       * string session_id = 2;
       * @return The sessionId.
       */
      @java.lang.Override
      public java.lang.String getSessionId() {
        java.lang.Object ref = sessionId_;
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          com.google.protobuf.ByteString bs = 
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          java.lang.String s = bs.toStringUtf8();
          sessionId_ = s;
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        }
      }
      /**
       * 
       * Unique identifier of write session. Used for debug purposes.
       * 
       *
       * string session_id = 2;
       * @return The bytes for sessionId.
       */
      @java.lang.Override
      public com.google.protobuf.ByteString
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          return b;
        } else {
          return (com.google.protobuf.ByteString) ref;
        }
      }

      public static final int PARTITION_ID_FIELD_NUMBER = 3;
      private long partitionId_ = 0L;
      /**
       * 
       * Identifier of partition that is matched for this write session.
       * 
       *
       * int64 partition_id = 3;
       * @return The partitionId.
       */
      @java.lang.Override
      public long getPartitionId() {
        return partitionId_;
      }

      public static final int SUPPORTED_CODECS_FIELD_NUMBER = 4;
      private tech.ydb.proto.topic.YdbTopic.SupportedCodecs supportedCodecs_;
      /**
       * 
       * Client can only use compression codecs from this set to write messages to topic.
       * Otherwise session will be closed with BAD_REQUEST.
       * 
       *
       * .Ydb.Topic.SupportedCodecs supported_codecs = 4;
       * @return Whether the supportedCodecs field is set.
       */
      @java.lang.Override
      public boolean hasSupportedCodecs() {
        return ((bitField0_ & 0x00000001) != 0);
      }
      /**
       * 
       * Client can only use compression codecs from this set to write messages to topic.
       * Otherwise session will be closed with BAD_REQUEST.
       * 
       *
       * .Ydb.Topic.SupportedCodecs supported_codecs = 4;
       * @return The supportedCodecs.
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.SupportedCodecs getSupportedCodecs() {
        return supportedCodecs_ == null ? tech.ydb.proto.topic.YdbTopic.SupportedCodecs.getDefaultInstance() : supportedCodecs_;
      }
      /**
       * 
       * Client can only use compression codecs from this set to write messages to topic.
       * Otherwise session will be closed with BAD_REQUEST.
       * 
       *
       * .Ydb.Topic.SupportedCodecs supported_codecs = 4;
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.SupportedCodecsOrBuilder getSupportedCodecsOrBuilder() {
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          output.writeInt64(1, lastSeqNo_);
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        if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(sessionId_)) {
          com.google.protobuf.GeneratedMessageV3.writeString(output, 2, sessionId_);
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        if (partitionId_ != 0L) {
          output.writeInt64(3, partitionId_);
        }
        if (((bitField0_ & 0x00000001) != 0)) {
          output.writeMessage(4, getSupportedCodecs());
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        getUnknownFields().writeTo(output);
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          return memoizedHashCode;
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        int hash = 41;
        hash = (19 * hash) + getDescriptor().hashCode();
        hash = (37 * hash) + LAST_SEQ_NO_FIELD_NUMBER;
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      @java.lang.Override
      public Builder newBuilderForType() { return newBuilder(); }
      public static Builder newBuilder() {
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      public static Builder newBuilder(tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitResponse prototype) {
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      }
      @java.lang.Override
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      /**
       * 
       * Response to the handshake.
       * 
       *
       * Protobuf type {@code Ydb.Topic.StreamWriteMessage.InitResponse}
       */
      public static final class Builder extends
          com.google.protobuf.GeneratedMessageV3.Builder implements
          // @@protoc_insertion_point(builder_implements:Ydb.Topic.StreamWriteMessage.InitResponse)
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        public Builder setRepeatedField(
            com.google.protobuf.Descriptors.FieldDescriptor field,
            int index, java.lang.Object value) {
          return super.setRepeatedField(field, index, value);
        }
        @java.lang.Override
        public Builder addRepeatedField(
            com.google.protobuf.Descriptors.FieldDescriptor field,
            java.lang.Object value) {
          return super.addRepeatedField(field, value);
        }
        @java.lang.Override
        public Builder mergeFrom(com.google.protobuf.Message other) {
          if (other instanceof tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitResponse) {
            return mergeFrom((tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitResponse)other);
          } else {
            super.mergeFrom(other);
            return this;
          }
        }

        public Builder mergeFrom(tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitResponse other) {
          if (other == tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitResponse.getDefaultInstance()) return this;
          if (other.getLastSeqNo() != 0L) {
            setLastSeqNo(other.getLastSeqNo());
          }
          if (!other.getSessionId().isEmpty()) {
            sessionId_ = other.sessionId_;
            bitField0_ |= 0x00000002;
            onChanged();
          }
          if (other.getPartitionId() != 0L) {
            setPartitionId(other.getPartitionId());
          }
          if (other.hasSupportedCodecs()) {
            mergeSupportedCodecs(other.getSupportedCodecs());
          }
          this.mergeUnknownFields(other.getUnknownFields());
          onChanged();
          return this;
        }

        @java.lang.Override
        public final boolean isInitialized() {
          return true;
        }

        @java.lang.Override
        public Builder mergeFrom(
            com.google.protobuf.CodedInputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws java.io.IOException {
          if (extensionRegistry == null) {
            throw new java.lang.NullPointerException();
          }
          try {
            boolean done = false;
            while (!done) {
              int tag = input.readTag();
              switch (tag) {
                case 0:
                  done = true;
                  break;
                case 8: {
                  lastSeqNo_ = input.readInt64();
                  bitField0_ |= 0x00000001;
                  break;
                } // case 8
                case 18: {
                  sessionId_ = input.readStringRequireUtf8();
                  bitField0_ |= 0x00000002;
                  break;
                } // case 18
                case 24: {
                  partitionId_ = input.readInt64();
                  bitField0_ |= 0x00000004;
                  break;
                } // case 24
                case 34: {
                  input.readMessage(
                      getSupportedCodecsFieldBuilder().getBuilder(),
                      extensionRegistry);
                  bitField0_ |= 0x00000008;
                  break;
                } // case 34
                default: {
                  if (!super.parseUnknownField(input, extensionRegistry, tag)) {
                    done = true; // was an endgroup tag
                  }
                  break;
                } // default:
              } // switch (tag)
            } // while (!done)
          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
            throw e.unwrapIOException();
          } finally {
            onChanged();
          } // finally
          return this;
        }
        private int bitField0_;

        private long lastSeqNo_ ;
        /**
         * 
         * Last persisted message's sequence number for this producer.
         * Zero for new producer.
         * 
         *
         * int64 last_seq_no = 1;
         * @return The lastSeqNo.
         */
        @java.lang.Override
        public long getLastSeqNo() {
          return lastSeqNo_;
        }
        /**
         * 
         * Last persisted message's sequence number for this producer.
         * Zero for new producer.
         * 
         *
         * int64 last_seq_no = 1;
         * @param value The lastSeqNo to set.
         * @return This builder for chaining.
         */
        public Builder setLastSeqNo(long value) {

          lastSeqNo_ = value;
          bitField0_ |= 0x00000001;
          onChanged();
          return this;
        }
        /**
         * 
         * Last persisted message's sequence number for this producer.
         * Zero for new producer.
         * 
         *
         * int64 last_seq_no = 1;
         * @return This builder for chaining.
         */
        public Builder clearLastSeqNo() {
          bitField0_ = (bitField0_ & ~0x00000001);
          lastSeqNo_ = 0L;
          onChanged();
          return this;
        }

        private java.lang.Object sessionId_ = "";
        /**
         * 
         * Unique identifier of write session. Used for debug purposes.
         * 
         *
         * string session_id = 2;
         * @return The sessionId.
         */
        public java.lang.String getSessionId() {
          java.lang.Object ref = sessionId_;
          if (!(ref instanceof java.lang.String)) {
            com.google.protobuf.ByteString bs =
                (com.google.protobuf.ByteString) ref;
            java.lang.String s = bs.toStringUtf8();
            sessionId_ = s;
            return s;
          } else {
            return (java.lang.String) ref;
          }
        }
        /**
         * 
         * Unique identifier of write session. Used for debug purposes.
         * 
         *
         * string session_id = 2;
         * @return The bytes for sessionId.
         */
        public com.google.protobuf.ByteString
            getSessionIdBytes() {
          java.lang.Object ref = sessionId_;
          if (ref instanceof String) {
            com.google.protobuf.ByteString b = 
                com.google.protobuf.ByteString.copyFromUtf8(
                    (java.lang.String) ref);
            sessionId_ = b;
            return b;
          } else {
            return (com.google.protobuf.ByteString) ref;
          }
        }
        /**
         * 
         * Unique identifier of write session. Used for debug purposes.
         * 
         *
         * string session_id = 2;
         * @param value The sessionId to set.
         * @return This builder for chaining.
         */
        public Builder setSessionId(
            java.lang.String value) {
          if (value == null) { throw new NullPointerException(); }
          sessionId_ = value;
          bitField0_ |= 0x00000002;
          onChanged();
          return this;
        }
        /**
         * 
         * Unique identifier of write session. Used for debug purposes.
         * 
         *
         * string session_id = 2;
         * @return This builder for chaining.
         */
        public Builder clearSessionId() {
          sessionId_ = getDefaultInstance().getSessionId();
          bitField0_ = (bitField0_ & ~0x00000002);
          onChanged();
          return this;
        }
        /**
         * 
         * Unique identifier of write session. Used for debug purposes.
         * 
         *
         * string session_id = 2;
         * @param value The bytes for sessionId to set.
         * @return This builder for chaining.
         */
        public Builder setSessionIdBytes(
            com.google.protobuf.ByteString value) {
          if (value == null) { throw new NullPointerException(); }
          checkByteStringIsUtf8(value);
          sessionId_ = value;
          bitField0_ |= 0x00000002;
          onChanged();
          return this;
        }

        private long partitionId_ ;
        /**
         * 
         * Identifier of partition that is matched for this write session.
         * 
         *
         * int64 partition_id = 3;
         * @return The partitionId.
         */
        @java.lang.Override
        public long getPartitionId() {
          return partitionId_;
        }
        /**
         * 
         * Identifier of partition that is matched for this write session.
         * 
         *
         * int64 partition_id = 3;
         * @param value The partitionId to set.
         * @return This builder for chaining.
         */
        public Builder setPartitionId(long value) {

          partitionId_ = value;
          bitField0_ |= 0x00000004;
          onChanged();
          return this;
        }
        /**
         * 
         * Identifier of partition that is matched for this write session.
         * 
         *
         * int64 partition_id = 3;
         * @return This builder for chaining.
         */
        public Builder clearPartitionId() {
          bitField0_ = (bitField0_ & ~0x00000004);
          partitionId_ = 0L;
          onChanged();
          return this;
        }

        private tech.ydb.proto.topic.YdbTopic.SupportedCodecs supportedCodecs_;
        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.SupportedCodecs, tech.ydb.proto.topic.YdbTopic.SupportedCodecs.Builder, tech.ydb.proto.topic.YdbTopic.SupportedCodecsOrBuilder> supportedCodecsBuilder_;
        /**
         * 
         * Client can only use compression codecs from this set to write messages to topic.
         * Otherwise session will be closed with BAD_REQUEST.
         * 
         *
         * .Ydb.Topic.SupportedCodecs supported_codecs = 4;
         * @return Whether the supportedCodecs field is set.
         */
        public boolean hasSupportedCodecs() {
          return ((bitField0_ & 0x00000008) != 0);
        }
        /**
         * 
         * Client can only use compression codecs from this set to write messages to topic.
         * Otherwise session will be closed with BAD_REQUEST.
         * 
         *
         * .Ydb.Topic.SupportedCodecs supported_codecs = 4;
         * @return The supportedCodecs.
         */
        public tech.ydb.proto.topic.YdbTopic.SupportedCodecs getSupportedCodecs() {
          if (supportedCodecsBuilder_ == null) {
            return supportedCodecs_ == null ? tech.ydb.proto.topic.YdbTopic.SupportedCodecs.getDefaultInstance() : supportedCodecs_;
          } else {
            return supportedCodecsBuilder_.getMessage();
          }
        }
        /**
         * 
         * Client can only use compression codecs from this set to write messages to topic.
         * Otherwise session will be closed with BAD_REQUEST.
         * 
         *
         * .Ydb.Topic.SupportedCodecs supported_codecs = 4;
         */
        public Builder setSupportedCodecs(tech.ydb.proto.topic.YdbTopic.SupportedCodecs value) {
          if (supportedCodecsBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            supportedCodecs_ = value;
          } else {
            supportedCodecsBuilder_.setMessage(value);
          }
          bitField0_ |= 0x00000008;
          onChanged();
          return this;
        }
        /**
         * 
         * Client can only use compression codecs from this set to write messages to topic.
         * Otherwise session will be closed with BAD_REQUEST.
         * 
         *
         * .Ydb.Topic.SupportedCodecs supported_codecs = 4;
         */
        public Builder setSupportedCodecs(
            tech.ydb.proto.topic.YdbTopic.SupportedCodecs.Builder builderForValue) {
          if (supportedCodecsBuilder_ == null) {
            supportedCodecs_ = builderForValue.build();
          } else {
            supportedCodecsBuilder_.setMessage(builderForValue.build());
          }
          bitField0_ |= 0x00000008;
          onChanged();
          return this;
        }
        /**
         * 
         * Client can only use compression codecs from this set to write messages to topic.
         * Otherwise session will be closed with BAD_REQUEST.
         * 
         *
         * .Ydb.Topic.SupportedCodecs supported_codecs = 4;
         */
        public Builder mergeSupportedCodecs(tech.ydb.proto.topic.YdbTopic.SupportedCodecs value) {
          if (supportedCodecsBuilder_ == null) {
            if (((bitField0_ & 0x00000008) != 0) &&
              supportedCodecs_ != null &&
              supportedCodecs_ != tech.ydb.proto.topic.YdbTopic.SupportedCodecs.getDefaultInstance()) {
              getSupportedCodecsBuilder().mergeFrom(value);
            } else {
              supportedCodecs_ = value;
            }
          } else {
            supportedCodecsBuilder_.mergeFrom(value);
          }
          if (supportedCodecs_ != null) {
            bitField0_ |= 0x00000008;
            onChanged();
          }
          return this;
        }
        /**
         * 
         * Client can only use compression codecs from this set to write messages to topic.
         * Otherwise session will be closed with BAD_REQUEST.
         * 
         *
         * .Ydb.Topic.SupportedCodecs supported_codecs = 4;
         */
        public Builder clearSupportedCodecs() {
          bitField0_ = (bitField0_ & ~0x00000008);
          supportedCodecs_ = null;
          if (supportedCodecsBuilder_ != null) {
            supportedCodecsBuilder_.dispose();
            supportedCodecsBuilder_ = null;
          }
          onChanged();
          return this;
        }
        /**
         * 
         * Client can only use compression codecs from this set to write messages to topic.
         * Otherwise session will be closed with BAD_REQUEST.
         * 
         *
         * .Ydb.Topic.SupportedCodecs supported_codecs = 4;
         */
        public tech.ydb.proto.topic.YdbTopic.SupportedCodecs.Builder getSupportedCodecsBuilder() {
          bitField0_ |= 0x00000008;
          onChanged();
          return getSupportedCodecsFieldBuilder().getBuilder();
        }
        /**
         * 
         * Client can only use compression codecs from this set to write messages to topic.
         * Otherwise session will be closed with BAD_REQUEST.
         * 
         *
         * .Ydb.Topic.SupportedCodecs supported_codecs = 4;
         */
        public tech.ydb.proto.topic.YdbTopic.SupportedCodecsOrBuilder getSupportedCodecsOrBuilder() {
          if (supportedCodecsBuilder_ != null) {
            return supportedCodecsBuilder_.getMessageOrBuilder();
          } else {
            return supportedCodecs_ == null ?
                tech.ydb.proto.topic.YdbTopic.SupportedCodecs.getDefaultInstance() : supportedCodecs_;
          }
        }
        /**
         * 
         * Client can only use compression codecs from this set to write messages to topic.
         * Otherwise session will be closed with BAD_REQUEST.
         * 
         *
         * .Ydb.Topic.SupportedCodecs supported_codecs = 4;
         */
        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.SupportedCodecs, tech.ydb.proto.topic.YdbTopic.SupportedCodecs.Builder, tech.ydb.proto.topic.YdbTopic.SupportedCodecsOrBuilder> 
            getSupportedCodecsFieldBuilder() {
          if (supportedCodecsBuilder_ == null) {
            supportedCodecsBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
                tech.ydb.proto.topic.YdbTopic.SupportedCodecs, tech.ydb.proto.topic.YdbTopic.SupportedCodecs.Builder, tech.ydb.proto.topic.YdbTopic.SupportedCodecsOrBuilder>(
                    getSupportedCodecs(),
                    getParentForChildren(),
                    isClean());
            supportedCodecs_ = null;
          }
          return supportedCodecsBuilder_;
        }
        @java.lang.Override
        public final Builder setUnknownFields(
            final com.google.protobuf.UnknownFieldSet unknownFields) {
          return super.setUnknownFields(unknownFields);
        }

        @java.lang.Override
        public final Builder mergeUnknownFields(
            final com.google.protobuf.UnknownFieldSet unknownFields) {
          return super.mergeUnknownFields(unknownFields);
        }


        // @@protoc_insertion_point(builder_scope:Ydb.Topic.StreamWriteMessage.InitResponse)
      }

      // @@protoc_insertion_point(class_scope:Ydb.Topic.StreamWriteMessage.InitResponse)
      private static final tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitResponse DEFAULT_INSTANCE;
      static {
        DEFAULT_INSTANCE = new tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitResponse();
      }

      public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitResponse getDefaultInstance() {
        return DEFAULT_INSTANCE;
      }

      private static final com.google.protobuf.Parser
          PARSER = new com.google.protobuf.AbstractParser() {
        @java.lang.Override
        public InitResponse parsePartialFrom(
            com.google.protobuf.CodedInputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws com.google.protobuf.InvalidProtocolBufferException {
          Builder builder = newBuilder();
          try {
            builder.mergeFrom(input, extensionRegistry);
          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
            throw e.setUnfinishedMessage(builder.buildPartial());
          } catch (com.google.protobuf.UninitializedMessageException e) {
            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
          } catch (java.io.IOException e) {
            throw new com.google.protobuf.InvalidProtocolBufferException(e)
                .setUnfinishedMessage(builder.buildPartial());
          }
          return builder.buildPartial();
        }
      };

      public static com.google.protobuf.Parser parser() {
        return PARSER;
      }

      @java.lang.Override
      public com.google.protobuf.Parser getParserForType() {
        return PARSER;
      }

      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.InitResponse getDefaultInstanceForType() {
        return DEFAULT_INSTANCE;
      }

    }

    public interface WriteRequestOrBuilder extends
        // @@protoc_insertion_point(interface_extends:Ydb.Topic.StreamWriteMessage.WriteRequest)
        com.google.protobuf.MessageOrBuilder {

      /**
       * repeated .Ydb.Topic.StreamWriteMessage.WriteRequest.MessageData messages = 1;
       */
      java.util.List 
          getMessagesList();
      /**
       * repeated .Ydb.Topic.StreamWriteMessage.WriteRequest.MessageData messages = 1;
       */
      tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest.MessageData getMessages(int index);
      /**
       * repeated .Ydb.Topic.StreamWriteMessage.WriteRequest.MessageData messages = 1;
       */
      int getMessagesCount();
      /**
       * repeated .Ydb.Topic.StreamWriteMessage.WriteRequest.MessageData messages = 1;
       */
      java.util.List 
          getMessagesOrBuilderList();
      /**
       * repeated .Ydb.Topic.StreamWriteMessage.WriteRequest.MessageData messages = 1;
       */
      tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest.MessageDataOrBuilder getMessagesOrBuilder(
          int index);

      /**
       * 
       * Codec that is used for data compression.
       * See enum Codec above for values.
       * 
       *
       * int32 codec = 2;
       * @return The codec.
       */
      int getCodec();

      /**
       * optional .Ydb.Topic.TransactionIdentity tx = 3;
       * @return Whether the tx field is set.
       */
      boolean hasTx();
      /**
       * optional .Ydb.Topic.TransactionIdentity tx = 3;
       * @return The tx.
       */
      tech.ydb.proto.topic.YdbTopic.TransactionIdentity getTx();
      /**
       * optional .Ydb.Topic.TransactionIdentity tx = 3;
       */
      tech.ydb.proto.topic.YdbTopic.TransactionIdentityOrBuilder getTxOrBuilder();
    }
    /**
     * 
     * Represents portion of client messages.
     * 
     *
     * Protobuf type {@code Ydb.Topic.StreamWriteMessage.WriteRequest}
     */
    public static final class WriteRequest extends
        com.google.protobuf.GeneratedMessageV3 implements
        // @@protoc_insertion_point(message_implements:Ydb.Topic.StreamWriteMessage.WriteRequest)
        WriteRequestOrBuilder {
    private static final long serialVersionUID = 0L;
      // Use WriteRequest.newBuilder() to construct.
      private WriteRequest(com.google.protobuf.GeneratedMessageV3.Builder builder) {
        super(builder);
      }
      private WriteRequest() {
        messages_ = java.util.Collections.emptyList();
      }

      @java.lang.Override
      @SuppressWarnings({"unused"})
      protected java.lang.Object newInstance(
          UnusedPrivateParameter unused) {
        return new WriteRequest();
      }

      public static final com.google.protobuf.Descriptors.Descriptor
          getDescriptor() {
        return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamWriteMessage_WriteRequest_descriptor;
      }

      @java.lang.Override
      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
          internalGetFieldAccessorTable() {
        return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamWriteMessage_WriteRequest_fieldAccessorTable
            .ensureFieldAccessorsInitialized(
                tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest.class, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest.Builder.class);
      }

      public interface MessageDataOrBuilder extends
          // @@protoc_insertion_point(interface_extends:Ydb.Topic.StreamWriteMessage.WriteRequest.MessageData)
          com.google.protobuf.MessageOrBuilder {

        /**
         * 
         * Message sequence number, provided by client for deduplication.
         * Starts at 1
         * 
         *
         * int64 seq_no = 1;
         * @return The seqNo.
         */
        long getSeqNo();

        /**
         * 
         * Creation timestamp
         * 
         *
         * .google.protobuf.Timestamp created_at = 2;
         * @return Whether the createdAt field is set.
         */
        boolean hasCreatedAt();
        /**
         * 
         * Creation timestamp
         * 
         *
         * .google.protobuf.Timestamp created_at = 2;
         * @return The createdAt.
         */
        com.google.protobuf.Timestamp getCreatedAt();
        /**
         * 
         * Creation timestamp
         * 
         *
         * .google.protobuf.Timestamp created_at = 2;
         */
        com.google.protobuf.TimestampOrBuilder getCreatedAtOrBuilder();

        /**
         * 
         * Compressed client message body.
         * 
         *
         * bytes data = 3;
         * @return The data.
         */
        com.google.protobuf.ByteString getData();

        /**
         * 
         * Uncompressed size of client message body.
         * 
         *
         * int64 uncompressed_size = 4;
         * @return The uncompressedSize.
         */
        long getUncompressedSize();

        /**
         * 
         * All messages with given pair (producer_id, message_group_id) go to single partition in order of writes.
         * 
         *
         * string message_group_id = 5 [(.Ydb.length) = { ... }
         * @return Whether the messageGroupId field is set.
         */
        boolean hasMessageGroupId();
        /**
         * 
         * All messages with given pair (producer_id, message_group_id) go to single partition in order of writes.
         * 
         *
         * string message_group_id = 5 [(.Ydb.length) = { ... }
         * @return The messageGroupId.
         */
        java.lang.String getMessageGroupId();
        /**
         * 
         * All messages with given pair (producer_id, message_group_id) go to single partition in order of writes.
         * 
         *
         * string message_group_id = 5 [(.Ydb.length) = { ... }
         * @return The bytes for messageGroupId.
         */
        com.google.protobuf.ByteString
            getMessageGroupIdBytes();

        /**
         * 
         * Explicit partition id to write to.
         * 
         *
         * int64 partition_id = 6;
         * @return Whether the partitionId field is set.
         */
        boolean hasPartitionId();
        /**
         * 
         * Explicit partition id to write to.
         * 
         *
         * int64 partition_id = 6;
         * @return The partitionId.
         */
        long getPartitionId();

        /**
         * 
         * Explicit partition location to write to.
         * 
         *
         * .Ydb.Topic.PartitionWithGeneration partition_with_generation = 8;
         * @return Whether the partitionWithGeneration field is set.
         */
        boolean hasPartitionWithGeneration();
        /**
         * 
         * Explicit partition location to write to.
         * 
         *
         * .Ydb.Topic.PartitionWithGeneration partition_with_generation = 8;
         * @return The partitionWithGeneration.
         */
        tech.ydb.proto.topic.YdbTopic.PartitionWithGeneration getPartitionWithGeneration();
        /**
         * 
         * Explicit partition location to write to.
         * 
         *
         * .Ydb.Topic.PartitionWithGeneration partition_with_generation = 8;
         */
        tech.ydb.proto.topic.YdbTopic.PartitionWithGenerationOrBuilder getPartitionWithGenerationOrBuilder();

        /**
         * 
         * Message metadata. Overall size is limited to 4096 symbols (all keys and values combined).
         * 
         *
         * repeated .Ydb.Topic.MetadataItem metadata_items = 7 [(.Ydb.size) = { ... }
         */
        java.util.List 
            getMetadataItemsList();
        /**
         * 
         * Message metadata. Overall size is limited to 4096 symbols (all keys and values combined).
         * 
         *
         * repeated .Ydb.Topic.MetadataItem metadata_items = 7 [(.Ydb.size) = { ... }
         */
        tech.ydb.proto.topic.YdbTopic.MetadataItem getMetadataItems(int index);
        /**
         * 
         * Message metadata. Overall size is limited to 4096 symbols (all keys and values combined).
         * 
         *
         * repeated .Ydb.Topic.MetadataItem metadata_items = 7 [(.Ydb.size) = { ... }
         */
        int getMetadataItemsCount();
        /**
         * 
         * Message metadata. Overall size is limited to 4096 symbols (all keys and values combined).
         * 
         *
         * repeated .Ydb.Topic.MetadataItem metadata_items = 7 [(.Ydb.size) = { ... }
         */
        java.util.List 
            getMetadataItemsOrBuilderList();
        /**
         * 
         * Message metadata. Overall size is limited to 4096 symbols (all keys and values combined).
         * 
         *
         * repeated .Ydb.Topic.MetadataItem metadata_items = 7 [(.Ydb.size) = { ... }
         */
        tech.ydb.proto.topic.YdbTopic.MetadataItemOrBuilder getMetadataItemsOrBuilder(
            int index);

        tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest.MessageData.PartitioningCase getPartitioningCase();
      }
      /**
       * Protobuf type {@code Ydb.Topic.StreamWriteMessage.WriteRequest.MessageData}
       */
      public static final class MessageData extends
          com.google.protobuf.GeneratedMessageV3 implements
          // @@protoc_insertion_point(message_implements:Ydb.Topic.StreamWriteMessage.WriteRequest.MessageData)
          MessageDataOrBuilder {
      private static final long serialVersionUID = 0L;
        // Use MessageData.newBuilder() to construct.
        private MessageData(com.google.protobuf.GeneratedMessageV3.Builder builder) {
          super(builder);
        }
        private MessageData() {
          data_ = com.google.protobuf.ByteString.EMPTY;
          metadataItems_ = java.util.Collections.emptyList();
        }

        @java.lang.Override
        @SuppressWarnings({"unused"})
        protected java.lang.Object newInstance(
            UnusedPrivateParameter unused) {
          return new MessageData();
        }

        public static final com.google.protobuf.Descriptors.Descriptor
            getDescriptor() {
          return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamWriteMessage_WriteRequest_MessageData_descriptor;
        }

        @java.lang.Override
        protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
            internalGetFieldAccessorTable() {
          return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamWriteMessage_WriteRequest_MessageData_fieldAccessorTable
              .ensureFieldAccessorsInitialized(
                  tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest.MessageData.class, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest.MessageData.Builder.class);
        }

        private int bitField0_;
        private int partitioningCase_ = 0;
        @SuppressWarnings("serial")
        private java.lang.Object partitioning_;
        public enum PartitioningCase
            implements com.google.protobuf.Internal.EnumLite,
                com.google.protobuf.AbstractMessage.InternalOneOfEnum {
          MESSAGE_GROUP_ID(5),
          PARTITION_ID(6),
          PARTITION_WITH_GENERATION(8),
          PARTITIONING_NOT_SET(0);
          private final int value;
          private PartitioningCase(int value) {
            this.value = value;
          }
          /**
           * @param value The number of the enum to look for.
           * @return The enum associated with the given number.
           * @deprecated Use {@link #forNumber(int)} instead.
           */
          @java.lang.Deprecated
          public static PartitioningCase valueOf(int value) {
            return forNumber(value);
          }

          public static PartitioningCase forNumber(int value) {
            switch (value) {
              case 5: return MESSAGE_GROUP_ID;
              case 6: return PARTITION_ID;
              case 8: return PARTITION_WITH_GENERATION;
              case 0: return PARTITIONING_NOT_SET;
              default: return null;
            }
          }
          public int getNumber() {
            return this.value;
          }
        };

        public PartitioningCase
        getPartitioningCase() {
          return PartitioningCase.forNumber(
              partitioningCase_);
        }

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        private long seqNo_ = 0L;
        /**
         * 
         * Message sequence number, provided by client for deduplication.
         * Starts at 1
         * 
         *
         * int64 seq_no = 1;
         * @return The seqNo.
         */
        @java.lang.Override
        public long getSeqNo() {
          return seqNo_;
        }

        public static final int CREATED_AT_FIELD_NUMBER = 2;
        private com.google.protobuf.Timestamp createdAt_;
        /**
         * 
         * Creation timestamp
         * 
         *
         * .google.protobuf.Timestamp created_at = 2;
         * @return Whether the createdAt field is set.
         */
        @java.lang.Override
        public boolean hasCreatedAt() {
          return ((bitField0_ & 0x00000001) != 0);
        }
        /**
         * 
         * Creation timestamp
         * 
         *
         * .google.protobuf.Timestamp created_at = 2;
         * @return The createdAt.
         */
        @java.lang.Override
        public com.google.protobuf.Timestamp getCreatedAt() {
          return createdAt_ == null ? com.google.protobuf.Timestamp.getDefaultInstance() : createdAt_;
        }
        /**
         * 
         * Creation timestamp
         * 
         *
         * .google.protobuf.Timestamp created_at = 2;
         */
        @java.lang.Override
        public com.google.protobuf.TimestampOrBuilder getCreatedAtOrBuilder() {
          return createdAt_ == null ? com.google.protobuf.Timestamp.getDefaultInstance() : createdAt_;
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        public static final int DATA_FIELD_NUMBER = 3;
        private com.google.protobuf.ByteString data_ = com.google.protobuf.ByteString.EMPTY;
        /**
         * 
         * Compressed client message body.
         * 
         *
         * bytes data = 3;
         * @return The data.
         */
        @java.lang.Override
        public com.google.protobuf.ByteString getData() {
          return data_;
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        public static final int UNCOMPRESSED_SIZE_FIELD_NUMBER = 4;
        private long uncompressedSize_ = 0L;
        /**
         * 
         * Uncompressed size of client message body.
         * 
         *
         * int64 uncompressed_size = 4;
         * @return The uncompressedSize.
         */
        @java.lang.Override
        public long getUncompressedSize() {
          return uncompressedSize_;
        }

        public static final int MESSAGE_GROUP_ID_FIELD_NUMBER = 5;
        /**
         * 
         * All messages with given pair (producer_id, message_group_id) go to single partition in order of writes.
         * 
         *
         * string message_group_id = 5 [(.Ydb.length) = { ... }
         * @return Whether the messageGroupId field is set.
         */
        public boolean hasMessageGroupId() {
          return partitioningCase_ == 5;
        }
        /**
         * 
         * All messages with given pair (producer_id, message_group_id) go to single partition in order of writes.
         * 
         *
         * string message_group_id = 5 [(.Ydb.length) = { ... }
         * @return The messageGroupId.
         */
        public java.lang.String getMessageGroupId() {
          java.lang.Object ref = "";
          if (partitioningCase_ == 5) {
            ref = partitioning_;
          }
          if (ref instanceof java.lang.String) {
            return (java.lang.String) ref;
          } else {
            com.google.protobuf.ByteString bs = 
                (com.google.protobuf.ByteString) ref;
            java.lang.String s = bs.toStringUtf8();
            if (partitioningCase_ == 5) {
              partitioning_ = s;
            }
            return s;
          }
        }
        /**
         * 
         * All messages with given pair (producer_id, message_group_id) go to single partition in order of writes.
         * 
         *
         * string message_group_id = 5 [(.Ydb.length) = { ... }
         * @return The bytes for messageGroupId.
         */
        public com.google.protobuf.ByteString
            getMessageGroupIdBytes() {
          java.lang.Object ref = "";
          if (partitioningCase_ == 5) {
            ref = partitioning_;
          }
          if (ref instanceof java.lang.String) {
            com.google.protobuf.ByteString b = 
                com.google.protobuf.ByteString.copyFromUtf8(
                    (java.lang.String) ref);
            if (partitioningCase_ == 5) {
              partitioning_ = b;
            }
            return b;
          } else {
            return (com.google.protobuf.ByteString) ref;
          }
        }

        public static final int PARTITION_ID_FIELD_NUMBER = 6;
        /**
         * 
         * Explicit partition id to write to.
         * 
         *
         * int64 partition_id = 6;
         * @return Whether the partitionId field is set.
         */
        @java.lang.Override
        public boolean hasPartitionId() {
          return partitioningCase_ == 6;
        }
        /**
         * 
         * Explicit partition id to write to.
         * 
         *
         * int64 partition_id = 6;
         * @return The partitionId.
         */
        @java.lang.Override
        public long getPartitionId() {
          if (partitioningCase_ == 6) {
            return (java.lang.Long) partitioning_;
          }
          return 0L;
        }

        public static final int PARTITION_WITH_GENERATION_FIELD_NUMBER = 8;
        /**
         * 
         * Explicit partition location to write to.
         * 
         *
         * .Ydb.Topic.PartitionWithGeneration partition_with_generation = 8;
         * @return Whether the partitionWithGeneration field is set.
         */
        @java.lang.Override
        public boolean hasPartitionWithGeneration() {
          return partitioningCase_ == 8;
        }
        /**
         * 
         * Explicit partition location to write to.
         * 
         *
         * .Ydb.Topic.PartitionWithGeneration partition_with_generation = 8;
         * @return The partitionWithGeneration.
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.PartitionWithGeneration getPartitionWithGeneration() {
          if (partitioningCase_ == 8) {
             return (tech.ydb.proto.topic.YdbTopic.PartitionWithGeneration) partitioning_;
          }
          return tech.ydb.proto.topic.YdbTopic.PartitionWithGeneration.getDefaultInstance();
        }
        /**
         * 
         * Explicit partition location to write to.
         * 
         *
         * .Ydb.Topic.PartitionWithGeneration partition_with_generation = 8;
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.PartitionWithGenerationOrBuilder getPartitionWithGenerationOrBuilder() {
          if (partitioningCase_ == 8) {
             return (tech.ydb.proto.topic.YdbTopic.PartitionWithGeneration) partitioning_;
          }
          return tech.ydb.proto.topic.YdbTopic.PartitionWithGeneration.getDefaultInstance();
        }

        public static final int METADATA_ITEMS_FIELD_NUMBER = 7;
        @SuppressWarnings("serial")
        private java.util.List metadataItems_;
        /**
         * 
         * Message metadata. Overall size is limited to 4096 symbols (all keys and values combined).
         * 
         *
         * repeated .Ydb.Topic.MetadataItem metadata_items = 7 [(.Ydb.size) = { ... }
         */
        @java.lang.Override
        public java.util.List getMetadataItemsList() {
          return metadataItems_;
        }
        /**
         * 
         * Message metadata. Overall size is limited to 4096 symbols (all keys and values combined).
         * 
         *
         * repeated .Ydb.Topic.MetadataItem metadata_items = 7 [(.Ydb.size) = { ... }
         */
        @java.lang.Override
        public java.util.List 
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          return metadataItems_;
        }
        /**
         * 
         * Message metadata. Overall size is limited to 4096 symbols (all keys and values combined).
         * 
         *
         * repeated .Ydb.Topic.MetadataItem metadata_items = 7 [(.Ydb.size) = { ... }
         */
        @java.lang.Override
        public int getMetadataItemsCount() {
          return metadataItems_.size();
        }
        /**
         * 
         * Message metadata. Overall size is limited to 4096 symbols (all keys and values combined).
         * 
         *
         * repeated .Ydb.Topic.MetadataItem metadata_items = 7 [(.Ydb.size) = { ... }
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.MetadataItem getMetadataItems(int index) {
          return metadataItems_.get(index);
        }
        /**
         * 
         * Message metadata. Overall size is limited to 4096 symbols (all keys and values combined).
         * 
         *
         * repeated .Ydb.Topic.MetadataItem metadata_items = 7 [(.Ydb.size) = { ... }
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.MetadataItemOrBuilder getMetadataItemsOrBuilder(
            int index) {
          return metadataItems_.get(index);
        }

        private byte memoizedIsInitialized = -1;
        @java.lang.Override
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          byte isInitialized = memoizedIsInitialized;
          if (isInitialized == 1) return true;
          if (isInitialized == 0) return false;

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          if (seqNo_ != 0L) {
            output.writeInt64(1, seqNo_);
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          if (((bitField0_ & 0x00000001) != 0)) {
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          if (!data_.isEmpty()) {
            output.writeBytes(3, data_);
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          if (uncompressedSize_ != 0L) {
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          if (partitioningCase_ == 6) {
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          size = 0;
          if (seqNo_ != 0L) {
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        public boolean equals(final java.lang.Object obj) {
          if (obj == this) {
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          if (!(obj instanceof tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest.MessageData)) {
            return super.equals(obj);
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          tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest.MessageData other = (tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest.MessageData) obj;

          if (getSeqNo()
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          if (hasCreatedAt() != other.hasCreatedAt()) return false;
          if (hasCreatedAt()) {
            if (!getCreatedAt()
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          if (!getData()
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          if (getUncompressedSize()
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              if (!getPartitionWithGeneration()
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              break;
            case 0:
            default:
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          if (!getUnknownFields().equals(other.getUnknownFields())) return false;
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        @java.lang.Override
        public int hashCode() {
          if (memoizedHashCode != 0) {
            return memoizedHashCode;
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          int hash = 41;
          hash = (19 * hash) + getDescriptor().hashCode();
          hash = (37 * hash) + SEQ_NO_FIELD_NUMBER;
          hash = (53 * hash) + com.google.protobuf.Internal.hashLong(
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          if (hasCreatedAt()) {
            hash = (37 * hash) + CREATED_AT_FIELD_NUMBER;
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          hash = (37 * hash) + DATA_FIELD_NUMBER;
          hash = (53 * hash) + getData().hashCode();
          hash = (37 * hash) + UNCOMPRESSED_SIZE_FIELD_NUMBER;
          hash = (53 * hash) + com.google.protobuf.Internal.hashLong(
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          public Builder setRepeatedField(
              com.google.protobuf.Descriptors.FieldDescriptor field,
              int index, java.lang.Object value) {
            return super.setRepeatedField(field, index, value);
          }
          @java.lang.Override
          public Builder addRepeatedField(
              com.google.protobuf.Descriptors.FieldDescriptor field,
              java.lang.Object value) {
            return super.addRepeatedField(field, value);
          }
          @java.lang.Override
          public Builder mergeFrom(com.google.protobuf.Message other) {
            if (other instanceof tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest.MessageData) {
              return mergeFrom((tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest.MessageData)other);
            } else {
              super.mergeFrom(other);
              return this;
            }
          }

          public Builder mergeFrom(tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest.MessageData other) {
            if (other == tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest.MessageData.getDefaultInstance()) return this;
            if (other.getSeqNo() != 0L) {
              setSeqNo(other.getSeqNo());
            }
            if (other.hasCreatedAt()) {
              mergeCreatedAt(other.getCreatedAt());
            }
            if (other.getData() != com.google.protobuf.ByteString.EMPTY) {
              setData(other.getData());
            }
            if (other.getUncompressedSize() != 0L) {
              setUncompressedSize(other.getUncompressedSize());
            }
            if (metadataItemsBuilder_ == null) {
              if (!other.metadataItems_.isEmpty()) {
                if (metadataItems_.isEmpty()) {
                  metadataItems_ = other.metadataItems_;
                  bitField0_ = (bitField0_ & ~0x00000080);
                } else {
                  ensureMetadataItemsIsMutable();
                  metadataItems_.addAll(other.metadataItems_);
                }
                onChanged();
              }
            } else {
              if (!other.metadataItems_.isEmpty()) {
                if (metadataItemsBuilder_.isEmpty()) {
                  metadataItemsBuilder_.dispose();
                  metadataItemsBuilder_ = null;
                  metadataItems_ = other.metadataItems_;
                  bitField0_ = (bitField0_ & ~0x00000080);
                  metadataItemsBuilder_ = 
                    com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders ?
                       getMetadataItemsFieldBuilder() : null;
                } else {
                  metadataItemsBuilder_.addAllMessages(other.metadataItems_);
                }
              }
            }
            switch (other.getPartitioningCase()) {
              case MESSAGE_GROUP_ID: {
                partitioningCase_ = 5;
                partitioning_ = other.partitioning_;
                onChanged();
                break;
              }
              case PARTITION_ID: {
                setPartitionId(other.getPartitionId());
                break;
              }
              case PARTITION_WITH_GENERATION: {
                mergePartitionWithGeneration(other.getPartitionWithGeneration());
                break;
              }
              case PARTITIONING_NOT_SET: {
                break;
              }
            }
            this.mergeUnknownFields(other.getUnknownFields());
            onChanged();
            return this;
          }

          @java.lang.Override
          public final boolean isInitialized() {
            return true;
          }

          @java.lang.Override
          public Builder mergeFrom(
              com.google.protobuf.CodedInputStream input,
              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
              throws java.io.IOException {
            if (extensionRegistry == null) {
              throw new java.lang.NullPointerException();
            }
            try {
              boolean done = false;
              while (!done) {
                int tag = input.readTag();
                switch (tag) {
                  case 0:
                    done = true;
                    break;
                  case 8: {
                    seqNo_ = input.readInt64();
                    bitField0_ |= 0x00000001;
                    break;
                  } // case 8
                  case 18: {
                    input.readMessage(
                        getCreatedAtFieldBuilder().getBuilder(),
                        extensionRegistry);
                    bitField0_ |= 0x00000002;
                    break;
                  } // case 18
                  case 26: {
                    data_ = input.readBytes();
                    bitField0_ |= 0x00000004;
                    break;
                  } // case 26
                  case 32: {
                    uncompressedSize_ = input.readInt64();
                    bitField0_ |= 0x00000008;
                    break;
                  } // case 32
                  case 42: {
                    java.lang.String s = input.readStringRequireUtf8();
                    partitioningCase_ = 5;
                    partitioning_ = s;
                    break;
                  } // case 42
                  case 48: {
                    partitioning_ = input.readInt64();
                    partitioningCase_ = 6;
                    break;
                  } // case 48
                  case 58: {
                    tech.ydb.proto.topic.YdbTopic.MetadataItem m =
                        input.readMessage(
                            tech.ydb.proto.topic.YdbTopic.MetadataItem.parser(),
                            extensionRegistry);
                    if (metadataItemsBuilder_ == null) {
                      ensureMetadataItemsIsMutable();
                      metadataItems_.add(m);
                    } else {
                      metadataItemsBuilder_.addMessage(m);
                    }
                    break;
                  } // case 58
                  case 66: {
                    input.readMessage(
                        getPartitionWithGenerationFieldBuilder().getBuilder(),
                        extensionRegistry);
                    partitioningCase_ = 8;
                    break;
                  } // case 66
                  default: {
                    if (!super.parseUnknownField(input, extensionRegistry, tag)) {
                      done = true; // was an endgroup tag
                    }
                    break;
                  } // default:
                } // switch (tag)
              } // while (!done)
            } catch (com.google.protobuf.InvalidProtocolBufferException e) {
              throw e.unwrapIOException();
            } finally {
              onChanged();
            } // finally
            return this;
          }
          private int partitioningCase_ = 0;
          private java.lang.Object partitioning_;
          public PartitioningCase
              getPartitioningCase() {
            return PartitioningCase.forNumber(
                partitioningCase_);
          }

          public Builder clearPartitioning() {
            partitioningCase_ = 0;
            partitioning_ = null;
            onChanged();
            return this;
          }

          private int bitField0_;

          private long seqNo_ ;
          /**
           * 
           * Message sequence number, provided by client for deduplication.
           * Starts at 1
           * 
           *
           * int64 seq_no = 1;
           * @return The seqNo.
           */
          @java.lang.Override
          public long getSeqNo() {
            return seqNo_;
          }
          /**
           * 
           * Message sequence number, provided by client for deduplication.
           * Starts at 1
           * 
           *
           * int64 seq_no = 1;
           * @param value The seqNo to set.
           * @return This builder for chaining.
           */
          public Builder setSeqNo(long value) {

            seqNo_ = value;
            bitField0_ |= 0x00000001;
            onChanged();
            return this;
          }
          /**
           * 
           * Message sequence number, provided by client for deduplication.
           * Starts at 1
           * 
           *
           * int64 seq_no = 1;
           * @return This builder for chaining.
           */
          public Builder clearSeqNo() {
            bitField0_ = (bitField0_ & ~0x00000001);
            seqNo_ = 0L;
            onChanged();
            return this;
          }

          private com.google.protobuf.Timestamp createdAt_;
          private com.google.protobuf.SingleFieldBuilderV3<
              com.google.protobuf.Timestamp, com.google.protobuf.Timestamp.Builder, com.google.protobuf.TimestampOrBuilder> createdAtBuilder_;
          /**
           * 
           * Creation timestamp
           * 
           *
           * .google.protobuf.Timestamp created_at = 2;
           * @return Whether the createdAt field is set.
           */
          public boolean hasCreatedAt() {
            return ((bitField0_ & 0x00000002) != 0);
          }
          /**
           * 
           * Creation timestamp
           * 
           *
           * .google.protobuf.Timestamp created_at = 2;
           * @return The createdAt.
           */
          public com.google.protobuf.Timestamp getCreatedAt() {
            if (createdAtBuilder_ == null) {
              return createdAt_ == null ? com.google.protobuf.Timestamp.getDefaultInstance() : createdAt_;
            } else {
              return createdAtBuilder_.getMessage();
            }
          }
          /**
           * 
           * Creation timestamp
           * 
           *
           * .google.protobuf.Timestamp created_at = 2;
           */
          public Builder setCreatedAt(com.google.protobuf.Timestamp value) {
            if (createdAtBuilder_ == null) {
              if (value == null) {
                throw new NullPointerException();
              }
              createdAt_ = value;
            } else {
              createdAtBuilder_.setMessage(value);
            }
            bitField0_ |= 0x00000002;
            onChanged();
            return this;
          }
          /**
           * 
           * Creation timestamp
           * 
           *
           * .google.protobuf.Timestamp created_at = 2;
           */
          public Builder setCreatedAt(
              com.google.protobuf.Timestamp.Builder builderForValue) {
            if (createdAtBuilder_ == null) {
              createdAt_ = builderForValue.build();
            } else {
              createdAtBuilder_.setMessage(builderForValue.build());
            }
            bitField0_ |= 0x00000002;
            onChanged();
            return this;
          }
          /**
           * 
           * Creation timestamp
           * 
           *
           * .google.protobuf.Timestamp created_at = 2;
           */
          public Builder mergeCreatedAt(com.google.protobuf.Timestamp value) {
            if (createdAtBuilder_ == null) {
              if (((bitField0_ & 0x00000002) != 0) &&
                createdAt_ != null &&
                createdAt_ != com.google.protobuf.Timestamp.getDefaultInstance()) {
                getCreatedAtBuilder().mergeFrom(value);
              } else {
                createdAt_ = value;
              }
            } else {
              createdAtBuilder_.mergeFrom(value);
            }
            if (createdAt_ != null) {
              bitField0_ |= 0x00000002;
              onChanged();
            }
            return this;
          }
          /**
           * 
           * Creation timestamp
           * 
           *
           * .google.protobuf.Timestamp created_at = 2;
           */
          public Builder clearCreatedAt() {
            bitField0_ = (bitField0_ & ~0x00000002);
            createdAt_ = null;
            if (createdAtBuilder_ != null) {
              createdAtBuilder_.dispose();
              createdAtBuilder_ = null;
            }
            onChanged();
            return this;
          }
          /**
           * 
           * Creation timestamp
           * 
           *
           * .google.protobuf.Timestamp created_at = 2;
           */
          public com.google.protobuf.Timestamp.Builder getCreatedAtBuilder() {
            bitField0_ |= 0x00000002;
            onChanged();
            return getCreatedAtFieldBuilder().getBuilder();
          }
          /**
           * 
           * Creation timestamp
           * 
           *
           * .google.protobuf.Timestamp created_at = 2;
           */
          public com.google.protobuf.TimestampOrBuilder getCreatedAtOrBuilder() {
            if (createdAtBuilder_ != null) {
              return createdAtBuilder_.getMessageOrBuilder();
            } else {
              return createdAt_ == null ?
                  com.google.protobuf.Timestamp.getDefaultInstance() : createdAt_;
            }
          }
          /**
           * 
           * Creation timestamp
           * 
           *
           * .google.protobuf.Timestamp created_at = 2;
           */
          private com.google.protobuf.SingleFieldBuilderV3<
              com.google.protobuf.Timestamp, com.google.protobuf.Timestamp.Builder, com.google.protobuf.TimestampOrBuilder> 
              getCreatedAtFieldBuilder() {
            if (createdAtBuilder_ == null) {
              createdAtBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
                  com.google.protobuf.Timestamp, com.google.protobuf.Timestamp.Builder, com.google.protobuf.TimestampOrBuilder>(
                      getCreatedAt(),
                      getParentForChildren(),
                      isClean());
              createdAt_ = null;
            }
            return createdAtBuilder_;
          }

          private com.google.protobuf.ByteString data_ = com.google.protobuf.ByteString.EMPTY;
          /**
           * 
           * Compressed client message body.
           * 
           *
           * bytes data = 3;
           * @return The data.
           */
          @java.lang.Override
          public com.google.protobuf.ByteString getData() {
            return data_;
          }
          /**
           * 
           * Compressed client message body.
           * 
           *
           * bytes data = 3;
           * @param value The data to set.
           * @return This builder for chaining.
           */
          public Builder setData(com.google.protobuf.ByteString value) {
            if (value == null) { throw new NullPointerException(); }
            data_ = value;
            bitField0_ |= 0x00000004;
            onChanged();
            return this;
          }
          /**
           * 
           * Compressed client message body.
           * 
           *
           * bytes data = 3;
           * @return This builder for chaining.
           */
          public Builder clearData() {
            bitField0_ = (bitField0_ & ~0x00000004);
            data_ = getDefaultInstance().getData();
            onChanged();
            return this;
          }

          private long uncompressedSize_ ;
          /**
           * 
           * Uncompressed size of client message body.
           * 
           *
           * int64 uncompressed_size = 4;
           * @return The uncompressedSize.
           */
          @java.lang.Override
          public long getUncompressedSize() {
            return uncompressedSize_;
          }
          /**
           * 
           * Uncompressed size of client message body.
           * 
           *
           * int64 uncompressed_size = 4;
           * @param value The uncompressedSize to set.
           * @return This builder for chaining.
           */
          public Builder setUncompressedSize(long value) {

            uncompressedSize_ = value;
            bitField0_ |= 0x00000008;
            onChanged();
            return this;
          }
          /**
           * 
           * Uncompressed size of client message body.
           * 
           *
           * int64 uncompressed_size = 4;
           * @return This builder for chaining.
           */
          public Builder clearUncompressedSize() {
            bitField0_ = (bitField0_ & ~0x00000008);
            uncompressedSize_ = 0L;
            onChanged();
            return this;
          }

          /**
           * 
           * All messages with given pair (producer_id, message_group_id) go to single partition in order of writes.
           * 
           *
           * string message_group_id = 5 [(.Ydb.length) = { ... }
           * @return Whether the messageGroupId field is set.
           */
          @java.lang.Override
          public boolean hasMessageGroupId() {
            return partitioningCase_ == 5;
          }
          /**
           * 
           * All messages with given pair (producer_id, message_group_id) go to single partition in order of writes.
           * 
           *
           * string message_group_id = 5 [(.Ydb.length) = { ... }
           * @return The messageGroupId.
           */
          @java.lang.Override
          public java.lang.String getMessageGroupId() {
            java.lang.Object ref = "";
            if (partitioningCase_ == 5) {
              ref = partitioning_;
            }
            if (!(ref instanceof java.lang.String)) {
              com.google.protobuf.ByteString bs =
                  (com.google.protobuf.ByteString) ref;
              java.lang.String s = bs.toStringUtf8();
              if (partitioningCase_ == 5) {
                partitioning_ = s;
              }
              return s;
            } else {
              return (java.lang.String) ref;
            }
          }
          /**
           * 
           * All messages with given pair (producer_id, message_group_id) go to single partition in order of writes.
           * 
           *
           * string message_group_id = 5 [(.Ydb.length) = { ... }
           * @return The bytes for messageGroupId.
           */
          @java.lang.Override
          public com.google.protobuf.ByteString
              getMessageGroupIdBytes() {
            java.lang.Object ref = "";
            if (partitioningCase_ == 5) {
              ref = partitioning_;
            }
            if (ref instanceof String) {
              com.google.protobuf.ByteString b = 
                  com.google.protobuf.ByteString.copyFromUtf8(
                      (java.lang.String) ref);
              if (partitioningCase_ == 5) {
                partitioning_ = b;
              }
              return b;
            } else {
              return (com.google.protobuf.ByteString) ref;
            }
          }
          /**
           * 
           * All messages with given pair (producer_id, message_group_id) go to single partition in order of writes.
           * 
           *
           * string message_group_id = 5 [(.Ydb.length) = { ... }
           * @param value The messageGroupId to set.
           * @return This builder for chaining.
           */
          public Builder setMessageGroupId(
              java.lang.String value) {
            if (value == null) { throw new NullPointerException(); }
            partitioningCase_ = 5;
            partitioning_ = value;
            onChanged();
            return this;
          }
          /**
           * 
           * All messages with given pair (producer_id, message_group_id) go to single partition in order of writes.
           * 
           *
           * string message_group_id = 5 [(.Ydb.length) = { ... }
           * @return This builder for chaining.
           */
          public Builder clearMessageGroupId() {
            if (partitioningCase_ == 5) {
              partitioningCase_ = 0;
              partitioning_ = null;
              onChanged();
            }
            return this;
          }
          /**
           * 
           * All messages with given pair (producer_id, message_group_id) go to single partition in order of writes.
           * 
           *
           * string message_group_id = 5 [(.Ydb.length) = { ... }
           * @param value The bytes for messageGroupId to set.
           * @return This builder for chaining.
           */
          public Builder setMessageGroupIdBytes(
              com.google.protobuf.ByteString value) {
            if (value == null) { throw new NullPointerException(); }
            checkByteStringIsUtf8(value);
            partitioningCase_ = 5;
            partitioning_ = value;
            onChanged();
            return this;
          }

          /**
           * 
           * Explicit partition id to write to.
           * 
           *
           * int64 partition_id = 6;
           * @return Whether the partitionId field is set.
           */
          public boolean hasPartitionId() {
            return partitioningCase_ == 6;
          }
          /**
           * 
           * Explicit partition id to write to.
           * 
           *
           * int64 partition_id = 6;
           * @return The partitionId.
           */
          public long getPartitionId() {
            if (partitioningCase_ == 6) {
              return (java.lang.Long) partitioning_;
            }
            return 0L;
          }
          /**
           * 
           * Explicit partition id to write to.
           * 
           *
           * int64 partition_id = 6;
           * @param value The partitionId to set.
           * @return This builder for chaining.
           */
          public Builder setPartitionId(long value) {

            partitioningCase_ = 6;
            partitioning_ = value;
            onChanged();
            return this;
          }
          /**
           * 
           * Explicit partition id to write to.
           * 
           *
           * int64 partition_id = 6;
           * @return This builder for chaining.
           */
          public Builder clearPartitionId() {
            if (partitioningCase_ == 6) {
              partitioningCase_ = 0;
              partitioning_ = null;
              onChanged();
            }
            return this;
          }

          private com.google.protobuf.SingleFieldBuilderV3<
              tech.ydb.proto.topic.YdbTopic.PartitionWithGeneration, tech.ydb.proto.topic.YdbTopic.PartitionWithGeneration.Builder, tech.ydb.proto.topic.YdbTopic.PartitionWithGenerationOrBuilder> partitionWithGenerationBuilder_;
          /**
           * 
           * Explicit partition location to write to.
           * 
           *
           * .Ydb.Topic.PartitionWithGeneration partition_with_generation = 8;
           * @return Whether the partitionWithGeneration field is set.
           */
          @java.lang.Override
          public boolean hasPartitionWithGeneration() {
            return partitioningCase_ == 8;
          }
          /**
           * 
           * Explicit partition location to write to.
           * 
           *
           * .Ydb.Topic.PartitionWithGeneration partition_with_generation = 8;
           * @return The partitionWithGeneration.
           */
          @java.lang.Override
          public tech.ydb.proto.topic.YdbTopic.PartitionWithGeneration getPartitionWithGeneration() {
            if (partitionWithGenerationBuilder_ == null) {
              if (partitioningCase_ == 8) {
                return (tech.ydb.proto.topic.YdbTopic.PartitionWithGeneration) partitioning_;
              }
              return tech.ydb.proto.topic.YdbTopic.PartitionWithGeneration.getDefaultInstance();
            } else {
              if (partitioningCase_ == 8) {
                return partitionWithGenerationBuilder_.getMessage();
              }
              return tech.ydb.proto.topic.YdbTopic.PartitionWithGeneration.getDefaultInstance();
            }
          }
          /**
           * 
           * Explicit partition location to write to.
           * 
           *
           * .Ydb.Topic.PartitionWithGeneration partition_with_generation = 8;
           */
          public Builder setPartitionWithGeneration(tech.ydb.proto.topic.YdbTopic.PartitionWithGeneration value) {
            if (partitionWithGenerationBuilder_ == null) {
              if (value == null) {
                throw new NullPointerException();
              }
              partitioning_ = value;
              onChanged();
            } else {
              partitionWithGenerationBuilder_.setMessage(value);
            }
            partitioningCase_ = 8;
            return this;
          }
          /**
           * 
           * Explicit partition location to write to.
           * 
           *
           * .Ydb.Topic.PartitionWithGeneration partition_with_generation = 8;
           */
          public Builder setPartitionWithGeneration(
              tech.ydb.proto.topic.YdbTopic.PartitionWithGeneration.Builder builderForValue) {
            if (partitionWithGenerationBuilder_ == null) {
              partitioning_ = builderForValue.build();
              onChanged();
            } else {
              partitionWithGenerationBuilder_.setMessage(builderForValue.build());
            }
            partitioningCase_ = 8;
            return this;
          }
          /**
           * 
           * Explicit partition location to write to.
           * 
           *
           * .Ydb.Topic.PartitionWithGeneration partition_with_generation = 8;
           */
          public Builder mergePartitionWithGeneration(tech.ydb.proto.topic.YdbTopic.PartitionWithGeneration value) {
            if (partitionWithGenerationBuilder_ == null) {
              if (partitioningCase_ == 8 &&
                  partitioning_ != tech.ydb.proto.topic.YdbTopic.PartitionWithGeneration.getDefaultInstance()) {
                partitioning_ = tech.ydb.proto.topic.YdbTopic.PartitionWithGeneration.newBuilder((tech.ydb.proto.topic.YdbTopic.PartitionWithGeneration) partitioning_)
                    .mergeFrom(value).buildPartial();
              } else {
                partitioning_ = value;
              }
              onChanged();
            } else {
              if (partitioningCase_ == 8) {
                partitionWithGenerationBuilder_.mergeFrom(value);
              } else {
                partitionWithGenerationBuilder_.setMessage(value);
              }
            }
            partitioningCase_ = 8;
            return this;
          }
          /**
           * 
           * Explicit partition location to write to.
           * 
           *
           * .Ydb.Topic.PartitionWithGeneration partition_with_generation = 8;
           */
          public Builder clearPartitionWithGeneration() {
            if (partitionWithGenerationBuilder_ == null) {
              if (partitioningCase_ == 8) {
                partitioningCase_ = 0;
                partitioning_ = null;
                onChanged();
              }
            } else {
              if (partitioningCase_ == 8) {
                partitioningCase_ = 0;
                partitioning_ = null;
              }
              partitionWithGenerationBuilder_.clear();
            }
            return this;
          }
          /**
           * 
           * Explicit partition location to write to.
           * 
           *
           * .Ydb.Topic.PartitionWithGeneration partition_with_generation = 8;
           */
          public tech.ydb.proto.topic.YdbTopic.PartitionWithGeneration.Builder getPartitionWithGenerationBuilder() {
            return getPartitionWithGenerationFieldBuilder().getBuilder();
          }
          /**
           * 
           * Explicit partition location to write to.
           * 
           *
           * .Ydb.Topic.PartitionWithGeneration partition_with_generation = 8;
           */
          @java.lang.Override
          public tech.ydb.proto.topic.YdbTopic.PartitionWithGenerationOrBuilder getPartitionWithGenerationOrBuilder() {
            if ((partitioningCase_ == 8) && (partitionWithGenerationBuilder_ != null)) {
              return partitionWithGenerationBuilder_.getMessageOrBuilder();
            } else {
              if (partitioningCase_ == 8) {
                return (tech.ydb.proto.topic.YdbTopic.PartitionWithGeneration) partitioning_;
              }
              return tech.ydb.proto.topic.YdbTopic.PartitionWithGeneration.getDefaultInstance();
            }
          }
          /**
           * 
           * Explicit partition location to write to.
           * 
           *
           * .Ydb.Topic.PartitionWithGeneration partition_with_generation = 8;
           */
          private com.google.protobuf.SingleFieldBuilderV3<
              tech.ydb.proto.topic.YdbTopic.PartitionWithGeneration, tech.ydb.proto.topic.YdbTopic.PartitionWithGeneration.Builder, tech.ydb.proto.topic.YdbTopic.PartitionWithGenerationOrBuilder> 
              getPartitionWithGenerationFieldBuilder() {
            if (partitionWithGenerationBuilder_ == null) {
              if (!(partitioningCase_ == 8)) {
                partitioning_ = tech.ydb.proto.topic.YdbTopic.PartitionWithGeneration.getDefaultInstance();
              }
              partitionWithGenerationBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
                  tech.ydb.proto.topic.YdbTopic.PartitionWithGeneration, tech.ydb.proto.topic.YdbTopic.PartitionWithGeneration.Builder, tech.ydb.proto.topic.YdbTopic.PartitionWithGenerationOrBuilder>(
                      (tech.ydb.proto.topic.YdbTopic.PartitionWithGeneration) partitioning_,
                      getParentForChildren(),
                      isClean());
              partitioning_ = null;
            }
            partitioningCase_ = 8;
            onChanged();
            return partitionWithGenerationBuilder_;
          }

          private java.util.List metadataItems_ =
            java.util.Collections.emptyList();
          private void ensureMetadataItemsIsMutable() {
            if (!((bitField0_ & 0x00000080) != 0)) {
              metadataItems_ = new java.util.ArrayList(metadataItems_);
              bitField0_ |= 0x00000080;
             }
          }

          private com.google.protobuf.RepeatedFieldBuilderV3<
              tech.ydb.proto.topic.YdbTopic.MetadataItem, tech.ydb.proto.topic.YdbTopic.MetadataItem.Builder, tech.ydb.proto.topic.YdbTopic.MetadataItemOrBuilder> metadataItemsBuilder_;

          /**
           * 
           * Message metadata. Overall size is limited to 4096 symbols (all keys and values combined).
           * 
           *
           * repeated .Ydb.Topic.MetadataItem metadata_items = 7 [(.Ydb.size) = { ... }
           */
          public java.util.List getMetadataItemsList() {
            if (metadataItemsBuilder_ == null) {
              return java.util.Collections.unmodifiableList(metadataItems_);
            } else {
              return metadataItemsBuilder_.getMessageList();
            }
          }
          /**
           * 
           * Message metadata. Overall size is limited to 4096 symbols (all keys and values combined).
           * 
           *
           * repeated .Ydb.Topic.MetadataItem metadata_items = 7 [(.Ydb.size) = { ... }
           */
          public int getMetadataItemsCount() {
            if (metadataItemsBuilder_ == null) {
              return metadataItems_.size();
            } else {
              return metadataItemsBuilder_.getCount();
            }
          }
          /**
           * 
           * Message metadata. Overall size is limited to 4096 symbols (all keys and values combined).
           * 
           *
           * repeated .Ydb.Topic.MetadataItem metadata_items = 7 [(.Ydb.size) = { ... }
           */
          public tech.ydb.proto.topic.YdbTopic.MetadataItem getMetadataItems(int index) {
            if (metadataItemsBuilder_ == null) {
              return metadataItems_.get(index);
            } else {
              return metadataItemsBuilder_.getMessage(index);
            }
          }
          /**
           * 
           * Message metadata. Overall size is limited to 4096 symbols (all keys and values combined).
           * 
           *
           * repeated .Ydb.Topic.MetadataItem metadata_items = 7 [(.Ydb.size) = { ... }
           */
          public Builder setMetadataItems(
              int index, tech.ydb.proto.topic.YdbTopic.MetadataItem value) {
            if (metadataItemsBuilder_ == null) {
              if (value == null) {
                throw new NullPointerException();
              }
              ensureMetadataItemsIsMutable();
              metadataItems_.set(index, value);
              onChanged();
            } else {
              metadataItemsBuilder_.setMessage(index, value);
            }
            return this;
          }
          /**
           * 
           * Message metadata. Overall size is limited to 4096 symbols (all keys and values combined).
           * 
           *
           * repeated .Ydb.Topic.MetadataItem metadata_items = 7 [(.Ydb.size) = { ... }
           */
          public Builder setMetadataItems(
              int index, tech.ydb.proto.topic.YdbTopic.MetadataItem.Builder builderForValue) {
            if (metadataItemsBuilder_ == null) {
              ensureMetadataItemsIsMutable();
              metadataItems_.set(index, builderForValue.build());
              onChanged();
            } else {
              metadataItemsBuilder_.setMessage(index, builderForValue.build());
            }
            return this;
          }
          /**
           * 
           * Message metadata. Overall size is limited to 4096 symbols (all keys and values combined).
           * 
           *
           * repeated .Ydb.Topic.MetadataItem metadata_items = 7 [(.Ydb.size) = { ... }
           */
          public Builder addMetadataItems(tech.ydb.proto.topic.YdbTopic.MetadataItem value) {
            if (metadataItemsBuilder_ == null) {
              if (value == null) {
                throw new NullPointerException();
              }
              ensureMetadataItemsIsMutable();
              metadataItems_.add(value);
              onChanged();
            } else {
              metadataItemsBuilder_.addMessage(value);
            }
            return this;
          }
          /**
           * 
           * Message metadata. Overall size is limited to 4096 symbols (all keys and values combined).
           * 
           *
           * repeated .Ydb.Topic.MetadataItem metadata_items = 7 [(.Ydb.size) = { ... }
           */
          public Builder addMetadataItems(
              int index, tech.ydb.proto.topic.YdbTopic.MetadataItem value) {
            if (metadataItemsBuilder_ == null) {
              if (value == null) {
                throw new NullPointerException();
              }
              ensureMetadataItemsIsMutable();
              metadataItems_.add(index, value);
              onChanged();
            } else {
              metadataItemsBuilder_.addMessage(index, value);
            }
            return this;
          }
          /**
           * 
           * Message metadata. Overall size is limited to 4096 symbols (all keys and values combined).
           * 
           *
           * repeated .Ydb.Topic.MetadataItem metadata_items = 7 [(.Ydb.size) = { ... }
           */
          public Builder addMetadataItems(
              tech.ydb.proto.topic.YdbTopic.MetadataItem.Builder builderForValue) {
            if (metadataItemsBuilder_ == null) {
              ensureMetadataItemsIsMutable();
              metadataItems_.add(builderForValue.build());
              onChanged();
            } else {
              metadataItemsBuilder_.addMessage(builderForValue.build());
            }
            return this;
          }
          /**
           * 
           * Message metadata. Overall size is limited to 4096 symbols (all keys and values combined).
           * 
           *
           * repeated .Ydb.Topic.MetadataItem metadata_items = 7 [(.Ydb.size) = { ... }
           */
          public Builder addMetadataItems(
              int index, tech.ydb.proto.topic.YdbTopic.MetadataItem.Builder builderForValue) {
            if (metadataItemsBuilder_ == null) {
              ensureMetadataItemsIsMutable();
              metadataItems_.add(index, builderForValue.build());
              onChanged();
            } else {
              metadataItemsBuilder_.addMessage(index, builderForValue.build());
            }
            return this;
          }
          /**
           * 
           * Message metadata. Overall size is limited to 4096 symbols (all keys and values combined).
           * 
           *
           * repeated .Ydb.Topic.MetadataItem metadata_items = 7 [(.Ydb.size) = { ... }
           */
          public Builder addAllMetadataItems(
              java.lang.Iterable values) {
            if (metadataItemsBuilder_ == null) {
              ensureMetadataItemsIsMutable();
              com.google.protobuf.AbstractMessageLite.Builder.addAll(
                  values, metadataItems_);
              onChanged();
            } else {
              metadataItemsBuilder_.addAllMessages(values);
            }
            return this;
          }
          /**
           * 
           * Message metadata. Overall size is limited to 4096 symbols (all keys and values combined).
           * 
           *
           * repeated .Ydb.Topic.MetadataItem metadata_items = 7 [(.Ydb.size) = { ... }
           */
          public Builder clearMetadataItems() {
            if (metadataItemsBuilder_ == null) {
              metadataItems_ = java.util.Collections.emptyList();
              bitField0_ = (bitField0_ & ~0x00000080);
              onChanged();
            } else {
              metadataItemsBuilder_.clear();
            }
            return this;
          }
          /**
           * 
           * Message metadata. Overall size is limited to 4096 symbols (all keys and values combined).
           * 
           *
           * repeated .Ydb.Topic.MetadataItem metadata_items = 7 [(.Ydb.size) = { ... }
           */
          public Builder removeMetadataItems(int index) {
            if (metadataItemsBuilder_ == null) {
              ensureMetadataItemsIsMutable();
              metadataItems_.remove(index);
              onChanged();
            } else {
              metadataItemsBuilder_.remove(index);
            }
            return this;
          }
          /**
           * 
           * Message metadata. Overall size is limited to 4096 symbols (all keys and values combined).
           * 
           *
           * repeated .Ydb.Topic.MetadataItem metadata_items = 7 [(.Ydb.size) = { ... }
           */
          public tech.ydb.proto.topic.YdbTopic.MetadataItem.Builder getMetadataItemsBuilder(
              int index) {
            return getMetadataItemsFieldBuilder().getBuilder(index);
          }
          /**
           * 
           * Message metadata. Overall size is limited to 4096 symbols (all keys and values combined).
           * 
           *
           * repeated .Ydb.Topic.MetadataItem metadata_items = 7 [(.Ydb.size) = { ... }
           */
          public tech.ydb.proto.topic.YdbTopic.MetadataItemOrBuilder getMetadataItemsOrBuilder(
              int index) {
            if (metadataItemsBuilder_ == null) {
              return metadataItems_.get(index);  } else {
              return metadataItemsBuilder_.getMessageOrBuilder(index);
            }
          }
          /**
           * 
           * Message metadata. Overall size is limited to 4096 symbols (all keys and values combined).
           * 
           *
           * repeated .Ydb.Topic.MetadataItem metadata_items = 7 [(.Ydb.size) = { ... }
           */
          public java.util.List 
               getMetadataItemsOrBuilderList() {
            if (metadataItemsBuilder_ != null) {
              return metadataItemsBuilder_.getMessageOrBuilderList();
            } else {
              return java.util.Collections.unmodifiableList(metadataItems_);
            }
          }
          /**
           * 
           * Message metadata. Overall size is limited to 4096 symbols (all keys and values combined).
           * 
           *
           * repeated .Ydb.Topic.MetadataItem metadata_items = 7 [(.Ydb.size) = { ... }
           */
          public tech.ydb.proto.topic.YdbTopic.MetadataItem.Builder addMetadataItemsBuilder() {
            return getMetadataItemsFieldBuilder().addBuilder(
                tech.ydb.proto.topic.YdbTopic.MetadataItem.getDefaultInstance());
          }
          /**
           * 
           * Message metadata. Overall size is limited to 4096 symbols (all keys and values combined).
           * 
           *
           * repeated .Ydb.Topic.MetadataItem metadata_items = 7 [(.Ydb.size) = { ... }
           */
          public tech.ydb.proto.topic.YdbTopic.MetadataItem.Builder addMetadataItemsBuilder(
              int index) {
            return getMetadataItemsFieldBuilder().addBuilder(
                index, tech.ydb.proto.topic.YdbTopic.MetadataItem.getDefaultInstance());
          }
          /**
           * 
           * Message metadata. Overall size is limited to 4096 symbols (all keys and values combined).
           * 
           *
           * repeated .Ydb.Topic.MetadataItem metadata_items = 7 [(.Ydb.size) = { ... }
           */
          public java.util.List 
               getMetadataItemsBuilderList() {
            return getMetadataItemsFieldBuilder().getBuilderList();
          }
          private com.google.protobuf.RepeatedFieldBuilderV3<
              tech.ydb.proto.topic.YdbTopic.MetadataItem, tech.ydb.proto.topic.YdbTopic.MetadataItem.Builder, tech.ydb.proto.topic.YdbTopic.MetadataItemOrBuilder> 
              getMetadataItemsFieldBuilder() {
            if (metadataItemsBuilder_ == null) {
              metadataItemsBuilder_ = new com.google.protobuf.RepeatedFieldBuilderV3<
                  tech.ydb.proto.topic.YdbTopic.MetadataItem, tech.ydb.proto.topic.YdbTopic.MetadataItem.Builder, tech.ydb.proto.topic.YdbTopic.MetadataItemOrBuilder>(
                      metadataItems_,
                      ((bitField0_ & 0x00000080) != 0),
                      getParentForChildren(),
                      isClean());
              metadataItems_ = null;
            }
            return metadataItemsBuilder_;
          }
          @java.lang.Override
          public final Builder setUnknownFields(
              final com.google.protobuf.UnknownFieldSet unknownFields) {
            return super.setUnknownFields(unknownFields);
          }

          @java.lang.Override
          public final Builder mergeUnknownFields(
              final com.google.protobuf.UnknownFieldSet unknownFields) {
            return super.mergeUnknownFields(unknownFields);
          }


          // @@protoc_insertion_point(builder_scope:Ydb.Topic.StreamWriteMessage.WriteRequest.MessageData)
        }

        // @@protoc_insertion_point(class_scope:Ydb.Topic.StreamWriteMessage.WriteRequest.MessageData)
        private static final tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest.MessageData DEFAULT_INSTANCE;
        static {
          DEFAULT_INSTANCE = new tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest.MessageData();
        }

        public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest.MessageData getDefaultInstance() {
          return DEFAULT_INSTANCE;
        }

        private static final com.google.protobuf.Parser
            PARSER = new com.google.protobuf.AbstractParser() {
          @java.lang.Override
          public MessageData parsePartialFrom(
              com.google.protobuf.CodedInputStream input,
              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
              throws com.google.protobuf.InvalidProtocolBufferException {
            Builder builder = newBuilder();
            try {
              builder.mergeFrom(input, extensionRegistry);
            } catch (com.google.protobuf.InvalidProtocolBufferException e) {
              throw e.setUnfinishedMessage(builder.buildPartial());
            } catch (com.google.protobuf.UninitializedMessageException e) {
              throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
            } catch (java.io.IOException e) {
              throw new com.google.protobuf.InvalidProtocolBufferException(e)
                  .setUnfinishedMessage(builder.buildPartial());
            }
            return builder.buildPartial();
          }
        };

        public static com.google.protobuf.Parser parser() {
          return PARSER;
        }

        @java.lang.Override
        public com.google.protobuf.Parser getParserForType() {
          return PARSER;
        }

        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest.MessageData getDefaultInstanceForType() {
          return DEFAULT_INSTANCE;
        }

      }

      private int bitField0_;
      public static final int MESSAGES_FIELD_NUMBER = 1;
      @SuppressWarnings("serial")
      private java.util.List messages_;
      /**
       * repeated .Ydb.Topic.StreamWriteMessage.WriteRequest.MessageData messages = 1;
       */
      @java.lang.Override
      public java.util.List getMessagesList() {
        return messages_;
      }
      /**
       * repeated .Ydb.Topic.StreamWriteMessage.WriteRequest.MessageData messages = 1;
       */
      @java.lang.Override
      public java.util.List 
          getMessagesOrBuilderList() {
        return messages_;
      }
      /**
       * repeated .Ydb.Topic.StreamWriteMessage.WriteRequest.MessageData messages = 1;
       */
      @java.lang.Override
      public int getMessagesCount() {
        return messages_.size();
      }
      /**
       * repeated .Ydb.Topic.StreamWriteMessage.WriteRequest.MessageData messages = 1;
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest.MessageData getMessages(int index) {
        return messages_.get(index);
      }
      /**
       * repeated .Ydb.Topic.StreamWriteMessage.WriteRequest.MessageData messages = 1;
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest.MessageDataOrBuilder getMessagesOrBuilder(
          int index) {
        return messages_.get(index);
      }

      public static final int CODEC_FIELD_NUMBER = 2;
      private int codec_ = 0;
      /**
       * 
       * Codec that is used for data compression.
       * See enum Codec above for values.
       * 
       *
       * int32 codec = 2;
       * @return The codec.
       */
      @java.lang.Override
      public int getCodec() {
        return codec_;
      }

      public static final int TX_FIELD_NUMBER = 3;
      private tech.ydb.proto.topic.YdbTopic.TransactionIdentity tx_;
      /**
       * optional .Ydb.Topic.TransactionIdentity tx = 3;
       * @return Whether the tx field is set.
       */
      @java.lang.Override
      public boolean hasTx() {
        return ((bitField0_ & 0x00000001) != 0);
      }
      /**
       * optional .Ydb.Topic.TransactionIdentity tx = 3;
       * @return The tx.
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.TransactionIdentity getTx() {
        return tx_ == null ? tech.ydb.proto.topic.YdbTopic.TransactionIdentity.getDefaultInstance() : tx_;
      }
      /**
       * optional .Ydb.Topic.TransactionIdentity tx = 3;
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.TransactionIdentityOrBuilder getTxOrBuilder() {
        return tx_ == null ? tech.ydb.proto.topic.YdbTopic.TransactionIdentity.getDefaultInstance() : tx_;
      }

      private byte memoizedIsInitialized = -1;
      @java.lang.Override
      public final boolean isInitialized() {
        byte isInitialized = memoizedIsInitialized;
        if (isInitialized == 1) return true;
        if (isInitialized == 0) return false;

        memoizedIsInitialized = 1;
        return true;
      }

      @java.lang.Override
      public void writeTo(com.google.protobuf.CodedOutputStream output)
                          throws java.io.IOException {
        for (int i = 0; i < messages_.size(); i++) {
          output.writeMessage(1, messages_.get(i));
        }
        if (codec_ != 0) {
          output.writeInt32(2, codec_);
        }
        if (((bitField0_ & 0x00000001) != 0)) {
          output.writeMessage(3, getTx());
        }
        getUnknownFields().writeTo(output);
      }

      @java.lang.Override
      public int getSerializedSize() {
        int size = memoizedSize;
        if (size != -1) return size;

        size = 0;
        for (int i = 0; i < messages_.size(); i++) {
          size += com.google.protobuf.CodedOutputStream
            .computeMessageSize(1, messages_.get(i));
        }
        if (codec_ != 0) {
          size += com.google.protobuf.CodedOutputStream
            .computeInt32Size(2, codec_);
        }
        if (((bitField0_ & 0x00000001) != 0)) {
          size += com.google.protobuf.CodedOutputStream
            .computeMessageSize(3, getTx());
        }
        size += getUnknownFields().getSerializedSize();
        memoizedSize = size;
        return size;
      }

      @java.lang.Override
      public boolean equals(final java.lang.Object obj) {
        if (obj == this) {
         return true;
        }
        if (!(obj instanceof tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest)) {
          return super.equals(obj);
        }
        tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest other = (tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest) obj;

        if (!getMessagesList()
            .equals(other.getMessagesList())) return false;
        if (getCodec()
            != other.getCodec()) return false;
        if (hasTx() != other.hasTx()) return false;
        if (hasTx()) {
          if (!getTx()
              .equals(other.getTx())) return false;
        }
        if (!getUnknownFields().equals(other.getUnknownFields())) return false;
        return true;
      }

      @java.lang.Override
      public int hashCode() {
        if (memoizedHashCode != 0) {
          return memoizedHashCode;
        }
        int hash = 41;
        hash = (19 * hash) + getDescriptor().hashCode();
        if (getMessagesCount() > 0) {
          hash = (37 * hash) + MESSAGES_FIELD_NUMBER;
          hash = (53 * hash) + getMessagesList().hashCode();
        }
        hash = (37 * hash) + CODEC_FIELD_NUMBER;
        hash = (53 * hash) + getCodec();
        if (hasTx()) {
          hash = (37 * hash) + TX_FIELD_NUMBER;
          hash = (53 * hash) + getTx().hashCode();
        }
        hash = (29 * hash) + getUnknownFields().hashCode();
        memoizedHashCode = hash;
        return hash;
      }

      public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest parseFrom(
          java.nio.ByteBuffer data)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest parseFrom(
          java.nio.ByteBuffer data,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data, extensionRegistry);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest parseFrom(
          com.google.protobuf.ByteString data)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest parseFrom(
          com.google.protobuf.ByteString data,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data, extensionRegistry);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest parseFrom(byte[] data)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest parseFrom(
          byte[] data,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data, extensionRegistry);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest parseFrom(java.io.InputStream input)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseWithIOException(PARSER, input);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest parseFrom(
          java.io.InputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseWithIOException(PARSER, input, extensionRegistry);
      }

      public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest parseDelimitedFrom(java.io.InputStream input)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseDelimitedWithIOException(PARSER, input);
      }

      public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest parseDelimitedFrom(
          java.io.InputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest parseFrom(
          com.google.protobuf.CodedInputStream input)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseWithIOException(PARSER, input);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest parseFrom(
          com.google.protobuf.CodedInputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseWithIOException(PARSER, input, extensionRegistry);
      }

      @java.lang.Override
      public Builder newBuilderForType() { return newBuilder(); }
      public static Builder newBuilder() {
        return DEFAULT_INSTANCE.toBuilder();
      }
      public static Builder newBuilder(tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest prototype) {
        return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
      }
      @java.lang.Override
      public Builder toBuilder() {
        return this == DEFAULT_INSTANCE
            ? new Builder() : new Builder().mergeFrom(this);
      }

      @java.lang.Override
      protected Builder newBuilderForType(
          com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
        Builder builder = new Builder(parent);
        return builder;
      }
      /**
       * 
       * Represents portion of client messages.
       * 
       *
       * Protobuf type {@code Ydb.Topic.StreamWriteMessage.WriteRequest}
       */
      public static final class Builder extends
          com.google.protobuf.GeneratedMessageV3.Builder implements
          // @@protoc_insertion_point(builder_implements:Ydb.Topic.StreamWriteMessage.WriteRequest)
          tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequestOrBuilder {
        public static final com.google.protobuf.Descriptors.Descriptor
            getDescriptor() {
          return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamWriteMessage_WriteRequest_descriptor;
        }

        @java.lang.Override
        protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
            internalGetFieldAccessorTable() {
          return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamWriteMessage_WriteRequest_fieldAccessorTable
              .ensureFieldAccessorsInitialized(
                  tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest.class, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest.Builder.class);
        }

        // Construct using tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest.newBuilder()
        private Builder() {
          maybeForceBuilderInitialization();
        }

        private Builder(
            com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
          super(parent);
          maybeForceBuilderInitialization();
        }
        private void maybeForceBuilderInitialization() {
          if (com.google.protobuf.GeneratedMessageV3
                  .alwaysUseFieldBuilders) {
            getMessagesFieldBuilder();
            getTxFieldBuilder();
          }
        }
        @java.lang.Override
        public Builder clear() {
          super.clear();
          bitField0_ = 0;
          if (messagesBuilder_ == null) {
            messages_ = java.util.Collections.emptyList();
          } else {
            messages_ = null;
            messagesBuilder_.clear();
          }
          bitField0_ = (bitField0_ & ~0x00000001);
          codec_ = 0;
          tx_ = null;
          if (txBuilder_ != null) {
            txBuilder_.dispose();
            txBuilder_ = null;
          }
          return this;
        }

        @java.lang.Override
        public com.google.protobuf.Descriptors.Descriptor
            getDescriptorForType() {
          return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamWriteMessage_WriteRequest_descriptor;
        }

        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest getDefaultInstanceForType() {
          return tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest.getDefaultInstance();
        }

        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest build() {
          tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest result = buildPartial();
          if (!result.isInitialized()) {
            throw newUninitializedMessageException(result);
          }
          return result;
        }

        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest buildPartial() {
          tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest result = new tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest(this);
          buildPartialRepeatedFields(result);
          if (bitField0_ != 0) { buildPartial0(result); }
          onBuilt();
          return result;
        }

        private void buildPartialRepeatedFields(tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest result) {
          if (messagesBuilder_ == null) {
            if (((bitField0_ & 0x00000001) != 0)) {
              messages_ = java.util.Collections.unmodifiableList(messages_);
              bitField0_ = (bitField0_ & ~0x00000001);
            }
            result.messages_ = messages_;
          } else {
            result.messages_ = messagesBuilder_.build();
          }
        }

        private void buildPartial0(tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest result) {
          int from_bitField0_ = bitField0_;
          if (((from_bitField0_ & 0x00000002) != 0)) {
            result.codec_ = codec_;
          }
          int to_bitField0_ = 0;
          if (((from_bitField0_ & 0x00000004) != 0)) {
            result.tx_ = txBuilder_ == null
                ? tx_
                : txBuilder_.build();
            to_bitField0_ |= 0x00000001;
          }
          result.bitField0_ |= to_bitField0_;
        }

        @java.lang.Override
        public Builder clone() {
          return super.clone();
        }
        @java.lang.Override
        public Builder setField(
            com.google.protobuf.Descriptors.FieldDescriptor field,
            java.lang.Object value) {
          return super.setField(field, value);
        }
        @java.lang.Override
        public Builder clearField(
            com.google.protobuf.Descriptors.FieldDescriptor field) {
          return super.clearField(field);
        }
        @java.lang.Override
        public Builder clearOneof(
            com.google.protobuf.Descriptors.OneofDescriptor oneof) {
          return super.clearOneof(oneof);
        }
        @java.lang.Override
        public Builder setRepeatedField(
            com.google.protobuf.Descriptors.FieldDescriptor field,
            int index, java.lang.Object value) {
          return super.setRepeatedField(field, index, value);
        }
        @java.lang.Override
        public Builder addRepeatedField(
            com.google.protobuf.Descriptors.FieldDescriptor field,
            java.lang.Object value) {
          return super.addRepeatedField(field, value);
        }
        @java.lang.Override
        public Builder mergeFrom(com.google.protobuf.Message other) {
          if (other instanceof tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest) {
            return mergeFrom((tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest)other);
          } else {
            super.mergeFrom(other);
            return this;
          }
        }

        public Builder mergeFrom(tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest other) {
          if (other == tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest.getDefaultInstance()) return this;
          if (messagesBuilder_ == null) {
            if (!other.messages_.isEmpty()) {
              if (messages_.isEmpty()) {
                messages_ = other.messages_;
                bitField0_ = (bitField0_ & ~0x00000001);
              } else {
                ensureMessagesIsMutable();
                messages_.addAll(other.messages_);
              }
              onChanged();
            }
          } else {
            if (!other.messages_.isEmpty()) {
              if (messagesBuilder_.isEmpty()) {
                messagesBuilder_.dispose();
                messagesBuilder_ = null;
                messages_ = other.messages_;
                bitField0_ = (bitField0_ & ~0x00000001);
                messagesBuilder_ = 
                  com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders ?
                     getMessagesFieldBuilder() : null;
              } else {
                messagesBuilder_.addAllMessages(other.messages_);
              }
            }
          }
          if (other.getCodec() != 0) {
            setCodec(other.getCodec());
          }
          if (other.hasTx()) {
            mergeTx(other.getTx());
          }
          this.mergeUnknownFields(other.getUnknownFields());
          onChanged();
          return this;
        }

        @java.lang.Override
        public final boolean isInitialized() {
          return true;
        }

        @java.lang.Override
        public Builder mergeFrom(
            com.google.protobuf.CodedInputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws java.io.IOException {
          if (extensionRegistry == null) {
            throw new java.lang.NullPointerException();
          }
          try {
            boolean done = false;
            while (!done) {
              int tag = input.readTag();
              switch (tag) {
                case 0:
                  done = true;
                  break;
                case 10: {
                  tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest.MessageData m =
                      input.readMessage(
                          tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest.MessageData.parser(),
                          extensionRegistry);
                  if (messagesBuilder_ == null) {
                    ensureMessagesIsMutable();
                    messages_.add(m);
                  } else {
                    messagesBuilder_.addMessage(m);
                  }
                  break;
                } // case 10
                case 16: {
                  codec_ = input.readInt32();
                  bitField0_ |= 0x00000002;
                  break;
                } // case 16
                case 26: {
                  input.readMessage(
                      getTxFieldBuilder().getBuilder(),
                      extensionRegistry);
                  bitField0_ |= 0x00000004;
                  break;
                } // case 26
                default: {
                  if (!super.parseUnknownField(input, extensionRegistry, tag)) {
                    done = true; // was an endgroup tag
                  }
                  break;
                } // default:
              } // switch (tag)
            } // while (!done)
          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
            throw e.unwrapIOException();
          } finally {
            onChanged();
          } // finally
          return this;
        }
        private int bitField0_;

        private java.util.List messages_ =
          java.util.Collections.emptyList();
        private void ensureMessagesIsMutable() {
          if (!((bitField0_ & 0x00000001) != 0)) {
            messages_ = new java.util.ArrayList(messages_);
            bitField0_ |= 0x00000001;
           }
        }

        private com.google.protobuf.RepeatedFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest.MessageData, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest.MessageData.Builder, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest.MessageDataOrBuilder> messagesBuilder_;

        /**
         * repeated .Ydb.Topic.StreamWriteMessage.WriteRequest.MessageData messages = 1;
         */
        public java.util.List getMessagesList() {
          if (messagesBuilder_ == null) {
            return java.util.Collections.unmodifiableList(messages_);
          } else {
            return messagesBuilder_.getMessageList();
          }
        }
        /**
         * repeated .Ydb.Topic.StreamWriteMessage.WriteRequest.MessageData messages = 1;
         */
        public int getMessagesCount() {
          if (messagesBuilder_ == null) {
            return messages_.size();
          } else {
            return messagesBuilder_.getCount();
          }
        }
        /**
         * repeated .Ydb.Topic.StreamWriteMessage.WriteRequest.MessageData messages = 1;
         */
        public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest.MessageData getMessages(int index) {
          if (messagesBuilder_ == null) {
            return messages_.get(index);
          } else {
            return messagesBuilder_.getMessage(index);
          }
        }
        /**
         * repeated .Ydb.Topic.StreamWriteMessage.WriteRequest.MessageData messages = 1;
         */
        public Builder setMessages(
            int index, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest.MessageData value) {
          if (messagesBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            ensureMessagesIsMutable();
            messages_.set(index, value);
            onChanged();
          } else {
            messagesBuilder_.setMessage(index, value);
          }
          return this;
        }
        /**
         * repeated .Ydb.Topic.StreamWriteMessage.WriteRequest.MessageData messages = 1;
         */
        public Builder setMessages(
            int index, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest.MessageData.Builder builderForValue) {
          if (messagesBuilder_ == null) {
            ensureMessagesIsMutable();
            messages_.set(index, builderForValue.build());
            onChanged();
          } else {
            messagesBuilder_.setMessage(index, builderForValue.build());
          }
          return this;
        }
        /**
         * repeated .Ydb.Topic.StreamWriteMessage.WriteRequest.MessageData messages = 1;
         */
        public Builder addMessages(tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest.MessageData value) {
          if (messagesBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            ensureMessagesIsMutable();
            messages_.add(value);
            onChanged();
          } else {
            messagesBuilder_.addMessage(value);
          }
          return this;
        }
        /**
         * repeated .Ydb.Topic.StreamWriteMessage.WriteRequest.MessageData messages = 1;
         */
        public Builder addMessages(
            int index, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest.MessageData value) {
          if (messagesBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            ensureMessagesIsMutable();
            messages_.add(index, value);
            onChanged();
          } else {
            messagesBuilder_.addMessage(index, value);
          }
          return this;
        }
        /**
         * repeated .Ydb.Topic.StreamWriteMessage.WriteRequest.MessageData messages = 1;
         */
        public Builder addMessages(
            tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest.MessageData.Builder builderForValue) {
          if (messagesBuilder_ == null) {
            ensureMessagesIsMutable();
            messages_.add(builderForValue.build());
            onChanged();
          } else {
            messagesBuilder_.addMessage(builderForValue.build());
          }
          return this;
        }
        /**
         * repeated .Ydb.Topic.StreamWriteMessage.WriteRequest.MessageData messages = 1;
         */
        public Builder addMessages(
            int index, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest.MessageData.Builder builderForValue) {
          if (messagesBuilder_ == null) {
            ensureMessagesIsMutable();
            messages_.add(index, builderForValue.build());
            onChanged();
          } else {
            messagesBuilder_.addMessage(index, builderForValue.build());
          }
          return this;
        }
        /**
         * repeated .Ydb.Topic.StreamWriteMessage.WriteRequest.MessageData messages = 1;
         */
        public Builder addAllMessages(
            java.lang.Iterable values) {
          if (messagesBuilder_ == null) {
            ensureMessagesIsMutable();
            com.google.protobuf.AbstractMessageLite.Builder.addAll(
                values, messages_);
            onChanged();
          } else {
            messagesBuilder_.addAllMessages(values);
          }
          return this;
        }
        /**
         * repeated .Ydb.Topic.StreamWriteMessage.WriteRequest.MessageData messages = 1;
         */
        public Builder clearMessages() {
          if (messagesBuilder_ == null) {
            messages_ = java.util.Collections.emptyList();
            bitField0_ = (bitField0_ & ~0x00000001);
            onChanged();
          } else {
            messagesBuilder_.clear();
          }
          return this;
        }
        /**
         * repeated .Ydb.Topic.StreamWriteMessage.WriteRequest.MessageData messages = 1;
         */
        public Builder removeMessages(int index) {
          if (messagesBuilder_ == null) {
            ensureMessagesIsMutable();
            messages_.remove(index);
            onChanged();
          } else {
            messagesBuilder_.remove(index);
          }
          return this;
        }
        /**
         * repeated .Ydb.Topic.StreamWriteMessage.WriteRequest.MessageData messages = 1;
         */
        public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest.MessageData.Builder getMessagesBuilder(
            int index) {
          return getMessagesFieldBuilder().getBuilder(index);
        }
        /**
         * repeated .Ydb.Topic.StreamWriteMessage.WriteRequest.MessageData messages = 1;
         */
        public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest.MessageDataOrBuilder getMessagesOrBuilder(
            int index) {
          if (messagesBuilder_ == null) {
            return messages_.get(index);  } else {
            return messagesBuilder_.getMessageOrBuilder(index);
          }
        }
        /**
         * repeated .Ydb.Topic.StreamWriteMessage.WriteRequest.MessageData messages = 1;
         */
        public java.util.List 
             getMessagesOrBuilderList() {
          if (messagesBuilder_ != null) {
            return messagesBuilder_.getMessageOrBuilderList();
          } else {
            return java.util.Collections.unmodifiableList(messages_);
          }
        }
        /**
         * repeated .Ydb.Topic.StreamWriteMessage.WriteRequest.MessageData messages = 1;
         */
        public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest.MessageData.Builder addMessagesBuilder() {
          return getMessagesFieldBuilder().addBuilder(
              tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest.MessageData.getDefaultInstance());
        }
        /**
         * repeated .Ydb.Topic.StreamWriteMessage.WriteRequest.MessageData messages = 1;
         */
        public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest.MessageData.Builder addMessagesBuilder(
            int index) {
          return getMessagesFieldBuilder().addBuilder(
              index, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest.MessageData.getDefaultInstance());
        }
        /**
         * repeated .Ydb.Topic.StreamWriteMessage.WriteRequest.MessageData messages = 1;
         */
        public java.util.List 
             getMessagesBuilderList() {
          return getMessagesFieldBuilder().getBuilderList();
        }
        private com.google.protobuf.RepeatedFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest.MessageData, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest.MessageData.Builder, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest.MessageDataOrBuilder> 
            getMessagesFieldBuilder() {
          if (messagesBuilder_ == null) {
            messagesBuilder_ = new com.google.protobuf.RepeatedFieldBuilderV3<
                tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest.MessageData, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest.MessageData.Builder, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest.MessageDataOrBuilder>(
                    messages_,
                    ((bitField0_ & 0x00000001) != 0),
                    getParentForChildren(),
                    isClean());
            messages_ = null;
          }
          return messagesBuilder_;
        }

        private int codec_ ;
        /**
         * 
         * Codec that is used for data compression.
         * See enum Codec above for values.
         * 
         *
         * int32 codec = 2;
         * @return The codec.
         */
        @java.lang.Override
        public int getCodec() {
          return codec_;
        }
        /**
         * 
         * Codec that is used for data compression.
         * See enum Codec above for values.
         * 
         *
         * int32 codec = 2;
         * @param value The codec to set.
         * @return This builder for chaining.
         */
        public Builder setCodec(int value) {

          codec_ = value;
          bitField0_ |= 0x00000002;
          onChanged();
          return this;
        }
        /**
         * 
         * Codec that is used for data compression.
         * See enum Codec above for values.
         * 
         *
         * int32 codec = 2;
         * @return This builder for chaining.
         */
        public Builder clearCodec() {
          bitField0_ = (bitField0_ & ~0x00000002);
          codec_ = 0;
          onChanged();
          return this;
        }

        private tech.ydb.proto.topic.YdbTopic.TransactionIdentity tx_;
        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.TransactionIdentity, tech.ydb.proto.topic.YdbTopic.TransactionIdentity.Builder, tech.ydb.proto.topic.YdbTopic.TransactionIdentityOrBuilder> txBuilder_;
        /**
         * optional .Ydb.Topic.TransactionIdentity tx = 3;
         * @return Whether the tx field is set.
         */
        public boolean hasTx() {
          return ((bitField0_ & 0x00000004) != 0);
        }
        /**
         * optional .Ydb.Topic.TransactionIdentity tx = 3;
         * @return The tx.
         */
        public tech.ydb.proto.topic.YdbTopic.TransactionIdentity getTx() {
          if (txBuilder_ == null) {
            return tx_ == null ? tech.ydb.proto.topic.YdbTopic.TransactionIdentity.getDefaultInstance() : tx_;
          } else {
            return txBuilder_.getMessage();
          }
        }
        /**
         * optional .Ydb.Topic.TransactionIdentity tx = 3;
         */
        public Builder setTx(tech.ydb.proto.topic.YdbTopic.TransactionIdentity value) {
          if (txBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            tx_ = value;
          } else {
            txBuilder_.setMessage(value);
          }
          bitField0_ |= 0x00000004;
          onChanged();
          return this;
        }
        /**
         * optional .Ydb.Topic.TransactionIdentity tx = 3;
         */
        public Builder setTx(
            tech.ydb.proto.topic.YdbTopic.TransactionIdentity.Builder builderForValue) {
          if (txBuilder_ == null) {
            tx_ = builderForValue.build();
          } else {
            txBuilder_.setMessage(builderForValue.build());
          }
          bitField0_ |= 0x00000004;
          onChanged();
          return this;
        }
        /**
         * optional .Ydb.Topic.TransactionIdentity tx = 3;
         */
        public Builder mergeTx(tech.ydb.proto.topic.YdbTopic.TransactionIdentity value) {
          if (txBuilder_ == null) {
            if (((bitField0_ & 0x00000004) != 0) &&
              tx_ != null &&
              tx_ != tech.ydb.proto.topic.YdbTopic.TransactionIdentity.getDefaultInstance()) {
              getTxBuilder().mergeFrom(value);
            } else {
              tx_ = value;
            }
          } else {
            txBuilder_.mergeFrom(value);
          }
          if (tx_ != null) {
            bitField0_ |= 0x00000004;
            onChanged();
          }
          return this;
        }
        /**
         * optional .Ydb.Topic.TransactionIdentity tx = 3;
         */
        public Builder clearTx() {
          bitField0_ = (bitField0_ & ~0x00000004);
          tx_ = null;
          if (txBuilder_ != null) {
            txBuilder_.dispose();
            txBuilder_ = null;
          }
          onChanged();
          return this;
        }
        /**
         * optional .Ydb.Topic.TransactionIdentity tx = 3;
         */
        public tech.ydb.proto.topic.YdbTopic.TransactionIdentity.Builder getTxBuilder() {
          bitField0_ |= 0x00000004;
          onChanged();
          return getTxFieldBuilder().getBuilder();
        }
        /**
         * optional .Ydb.Topic.TransactionIdentity tx = 3;
         */
        public tech.ydb.proto.topic.YdbTopic.TransactionIdentityOrBuilder getTxOrBuilder() {
          if (txBuilder_ != null) {
            return txBuilder_.getMessageOrBuilder();
          } else {
            return tx_ == null ?
                tech.ydb.proto.topic.YdbTopic.TransactionIdentity.getDefaultInstance() : tx_;
          }
        }
        /**
         * optional .Ydb.Topic.TransactionIdentity tx = 3;
         */
        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.TransactionIdentity, tech.ydb.proto.topic.YdbTopic.TransactionIdentity.Builder, tech.ydb.proto.topic.YdbTopic.TransactionIdentityOrBuilder> 
            getTxFieldBuilder() {
          if (txBuilder_ == null) {
            txBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
                tech.ydb.proto.topic.YdbTopic.TransactionIdentity, tech.ydb.proto.topic.YdbTopic.TransactionIdentity.Builder, tech.ydb.proto.topic.YdbTopic.TransactionIdentityOrBuilder>(
                    getTx(),
                    getParentForChildren(),
                    isClean());
            tx_ = null;
          }
          return txBuilder_;
        }
        @java.lang.Override
        public final Builder setUnknownFields(
            final com.google.protobuf.UnknownFieldSet unknownFields) {
          return super.setUnknownFields(unknownFields);
        }

        @java.lang.Override
        public final Builder mergeUnknownFields(
            final com.google.protobuf.UnknownFieldSet unknownFields) {
          return super.mergeUnknownFields(unknownFields);
        }


        // @@protoc_insertion_point(builder_scope:Ydb.Topic.StreamWriteMessage.WriteRequest)
      }

      // @@protoc_insertion_point(class_scope:Ydb.Topic.StreamWriteMessage.WriteRequest)
      private static final tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest DEFAULT_INSTANCE;
      static {
        DEFAULT_INSTANCE = new tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest();
      }

      public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest getDefaultInstance() {
        return DEFAULT_INSTANCE;
      }

      private static final com.google.protobuf.Parser
          PARSER = new com.google.protobuf.AbstractParser() {
        @java.lang.Override
        public WriteRequest parsePartialFrom(
            com.google.protobuf.CodedInputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws com.google.protobuf.InvalidProtocolBufferException {
          Builder builder = newBuilder();
          try {
            builder.mergeFrom(input, extensionRegistry);
          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
            throw e.setUnfinishedMessage(builder.buildPartial());
          } catch (com.google.protobuf.UninitializedMessageException e) {
            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
          } catch (java.io.IOException e) {
            throw new com.google.protobuf.InvalidProtocolBufferException(e)
                .setUnfinishedMessage(builder.buildPartial());
          }
          return builder.buildPartial();
        }
      };

      public static com.google.protobuf.Parser parser() {
        return PARSER;
      }

      @java.lang.Override
      public com.google.protobuf.Parser getParserForType() {
        return PARSER;
      }

      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteRequest getDefaultInstanceForType() {
        return DEFAULT_INSTANCE;
      }

    }

    public interface WriteResponseOrBuilder extends
        // @@protoc_insertion_point(interface_extends:Ydb.Topic.StreamWriteMessage.WriteResponse)
        com.google.protobuf.MessageOrBuilder {

      /**
       * 
       * Number of acks is equal to number of messages in the corresponding WriteRequests.
       * 
       *
       * repeated .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteAck acks = 1;
       */
      java.util.List 
          getAcksList();
      /**
       * 
       * Number of acks is equal to number of messages in the corresponding WriteRequests.
       * 
       *
       * repeated .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteAck acks = 1;
       */
      tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck getAcks(int index);
      /**
       * 
       * Number of acks is equal to number of messages in the corresponding WriteRequests.
       * 
       *
       * repeated .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteAck acks = 1;
       */
      int getAcksCount();
      /**
       * 
       * Number of acks is equal to number of messages in the corresponding WriteRequests.
       * 
       *
       * repeated .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteAck acks = 1;
       */
      java.util.List 
          getAcksOrBuilderList();
      /**
       * 
       * Number of acks is equal to number of messages in the corresponding WriteRequests.
       * 
       *
       * repeated .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteAck acks = 1;
       */
      tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAckOrBuilder getAcksOrBuilder(
          int index);

      /**
       * 
       * Assigned partition for all client messages inside this batch.
       * This actual partition may differ from that returned in InitResponse
       * or other WriteResponses in this write session.
       * 
       *
       * int64 partition_id = 2;
       * @return The partitionId.
       */
      long getPartitionId();

      /**
       * 
       * Write statistics for this sequence of client messages.
       * 
       *
       * .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteStatistics write_statistics = 3;
       * @return Whether the writeStatistics field is set.
       */
      boolean hasWriteStatistics();
      /**
       * 
       * Write statistics for this sequence of client messages.
       * 
       *
       * .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteStatistics write_statistics = 3;
       * @return The writeStatistics.
       */
      tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteStatistics getWriteStatistics();
      /**
       * 
       * Write statistics for this sequence of client messages.
       * 
       *
       * .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteStatistics write_statistics = 3;
       */
      tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteStatisticsOrBuilder getWriteStatisticsOrBuilder();
    }
    /**
     * 
     * Message that represents acknowledgment for sequence of client messages.
     * This sequence is persisted together so write statistics is for messages batch.
     * 
     *
     * Protobuf type {@code Ydb.Topic.StreamWriteMessage.WriteResponse}
     */
    public static final class WriteResponse extends
        com.google.protobuf.GeneratedMessageV3 implements
        // @@protoc_insertion_point(message_implements:Ydb.Topic.StreamWriteMessage.WriteResponse)
        WriteResponseOrBuilder {
    private static final long serialVersionUID = 0L;
      // Use WriteResponse.newBuilder() to construct.
      private WriteResponse(com.google.protobuf.GeneratedMessageV3.Builder builder) {
        super(builder);
      }
      private WriteResponse() {
        acks_ = java.util.Collections.emptyList();
      }

      @java.lang.Override
      @SuppressWarnings({"unused"})
      protected java.lang.Object newInstance(
          UnusedPrivateParameter unused) {
        return new WriteResponse();
      }

      public static final com.google.protobuf.Descriptors.Descriptor
          getDescriptor() {
        return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamWriteMessage_WriteResponse_descriptor;
      }

      @java.lang.Override
      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
          internalGetFieldAccessorTable() {
        return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamWriteMessage_WriteResponse_fieldAccessorTable
            .ensureFieldAccessorsInitialized(
                tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.class, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.Builder.class);
      }

      public interface WriteAckOrBuilder extends
          // @@protoc_insertion_point(interface_extends:Ydb.Topic.StreamWriteMessage.WriteResponse.WriteAck)
          com.google.protobuf.MessageOrBuilder {

        /**
         * 
         * Sequence number as in WriteRequest.
         * 
         *
         * int64 seq_no = 1;
         * @return The seqNo.
         */
        long getSeqNo();

        /**
         * .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteAck.Written written = 2;
         * @return Whether the written field is set.
         */
        boolean hasWritten();
        /**
         * .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteAck.Written written = 2;
         * @return The written.
         */
        tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.Written getWritten();
        /**
         * .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteAck.Written written = 2;
         */
        tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.WrittenOrBuilder getWrittenOrBuilder();

        /**
         * .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteAck.Skipped skipped = 3;
         * @return Whether the skipped field is set.
         */
        boolean hasSkipped();
        /**
         * .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteAck.Skipped skipped = 3;
         * @return The skipped.
         */
        tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.Skipped getSkipped();
        /**
         * .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteAck.Skipped skipped = 3;
         */
        tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.SkippedOrBuilder getSkippedOrBuilder();

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        public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck parseFrom(
            java.nio.ByteBuffer data,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws com.google.protobuf.InvalidProtocolBufferException {
          return PARSER.parseFrom(data, extensionRegistry);
        }
        public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck parseFrom(
            com.google.protobuf.ByteString data)
            throws com.google.protobuf.InvalidProtocolBufferException {
          return PARSER.parseFrom(data);
        }
        public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck parseFrom(
            com.google.protobuf.ByteString data,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws com.google.protobuf.InvalidProtocolBufferException {
          return PARSER.parseFrom(data, extensionRegistry);
        }
        public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck parseFrom(byte[] data)
            throws com.google.protobuf.InvalidProtocolBufferException {
          return PARSER.parseFrom(data);
        }
        public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck parseFrom(
            byte[] data,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws com.google.protobuf.InvalidProtocolBufferException {
          return PARSER.parseFrom(data, extensionRegistry);
        }
        public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck parseFrom(java.io.InputStream input)
            throws java.io.IOException {
          return com.google.protobuf.GeneratedMessageV3
              .parseWithIOException(PARSER, input);
        }
        public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck parseFrom(
            java.io.InputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws java.io.IOException {
          return com.google.protobuf.GeneratedMessageV3
              .parseWithIOException(PARSER, input, extensionRegistry);
        }

        public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck parseDelimitedFrom(java.io.InputStream input)
            throws java.io.IOException {
          return com.google.protobuf.GeneratedMessageV3
              .parseDelimitedWithIOException(PARSER, input);
        }

        public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck parseDelimitedFrom(
            java.io.InputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws java.io.IOException {
          return com.google.protobuf.GeneratedMessageV3
              .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
        }
        public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck parseFrom(
            com.google.protobuf.CodedInputStream input)
            throws java.io.IOException {
          return com.google.protobuf.GeneratedMessageV3
              .parseWithIOException(PARSER, input);
        }
        public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck parseFrom(
            com.google.protobuf.CodedInputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws java.io.IOException {
          return com.google.protobuf.GeneratedMessageV3
              .parseWithIOException(PARSER, input, extensionRegistry);
        }

        @java.lang.Override
        public Builder newBuilderForType() { return newBuilder(); }
        public static Builder newBuilder() {
          return DEFAULT_INSTANCE.toBuilder();
        }
        public static Builder newBuilder(tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck prototype) {
          return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
        }
        @java.lang.Override
        public Builder toBuilder() {
          return this == DEFAULT_INSTANCE
              ? new Builder() : new Builder().mergeFrom(this);
        }

        @java.lang.Override
        protected Builder newBuilderForType(
            com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
          Builder builder = new Builder(parent);
          return builder;
        }
        /**
         * 
         * Acknowledgment for one persistently written message.
         * 
         *
         * Protobuf type {@code Ydb.Topic.StreamWriteMessage.WriteResponse.WriteAck}
         */
        public static final class Builder extends
            com.google.protobuf.GeneratedMessageV3.Builder implements
            // @@protoc_insertion_point(builder_implements:Ydb.Topic.StreamWriteMessage.WriteResponse.WriteAck)
            tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAckOrBuilder {
          public static final com.google.protobuf.Descriptors.Descriptor
              getDescriptor() {
            return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamWriteMessage_WriteResponse_WriteAck_descriptor;
          }

          @java.lang.Override
          protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
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            return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamWriteMessage_WriteResponse_WriteAck_fieldAccessorTable
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                    tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.class, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.Builder.class);
          }

          // Construct using tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.newBuilder()
          private Builder() {

          }

          private Builder(
              com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
            super(parent);

          }
          @java.lang.Override
          public Builder clear() {
            super.clear();
            bitField0_ = 0;
            seqNo_ = 0L;
            if (writtenBuilder_ != null) {
              writtenBuilder_.clear();
            }
            if (skippedBuilder_ != null) {
              skippedBuilder_.clear();
            }
            messageWriteStatusCase_ = 0;
            messageWriteStatus_ = null;
            return this;
          }

          @java.lang.Override
          public com.google.protobuf.Descriptors.Descriptor
              getDescriptorForType() {
            return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamWriteMessage_WriteResponse_WriteAck_descriptor;
          }

          @java.lang.Override
          public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck getDefaultInstanceForType() {
            return tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.getDefaultInstance();
          }

          @java.lang.Override
          public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck build() {
            tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck result = buildPartial();
            if (!result.isInitialized()) {
              throw newUninitializedMessageException(result);
            }
            return result;
          }

          @java.lang.Override
          public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck buildPartial() {
            tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck result = new tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck(this);
            if (bitField0_ != 0) { buildPartial0(result); }
            buildPartialOneofs(result);
            onBuilt();
            return result;
          }

          private void buildPartial0(tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck result) {
            int from_bitField0_ = bitField0_;
            if (((from_bitField0_ & 0x00000001) != 0)) {
              result.seqNo_ = seqNo_;
            }
          }

          private void buildPartialOneofs(tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck result) {
            result.messageWriteStatusCase_ = messageWriteStatusCase_;
            result.messageWriteStatus_ = this.messageWriteStatus_;
            if (messageWriteStatusCase_ == 2 &&
                writtenBuilder_ != null) {
              result.messageWriteStatus_ = writtenBuilder_.build();
            }
            if (messageWriteStatusCase_ == 3 &&
                skippedBuilder_ != null) {
              result.messageWriteStatus_ = skippedBuilder_.build();
            }
          }

          @java.lang.Override
          public Builder clone() {
            return super.clone();
          }
          @java.lang.Override
          public Builder setField(
              com.google.protobuf.Descriptors.FieldDescriptor field,
              java.lang.Object value) {
            return super.setField(field, value);
          }
          @java.lang.Override
          public Builder clearField(
              com.google.protobuf.Descriptors.FieldDescriptor field) {
            return super.clearField(field);
          }
          @java.lang.Override
          public Builder clearOneof(
              com.google.protobuf.Descriptors.OneofDescriptor oneof) {
            return super.clearOneof(oneof);
          }
          @java.lang.Override
          public Builder setRepeatedField(
              com.google.protobuf.Descriptors.FieldDescriptor field,
              int index, java.lang.Object value) {
            return super.setRepeatedField(field, index, value);
          }
          @java.lang.Override
          public Builder addRepeatedField(
              com.google.protobuf.Descriptors.FieldDescriptor field,
              java.lang.Object value) {
            return super.addRepeatedField(field, value);
          }
          @java.lang.Override
          public Builder mergeFrom(com.google.protobuf.Message other) {
            if (other instanceof tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck) {
              return mergeFrom((tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck)other);
            } else {
              super.mergeFrom(other);
              return this;
            }
          }

          public Builder mergeFrom(tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck other) {
            if (other == tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.getDefaultInstance()) return this;
            if (other.getSeqNo() != 0L) {
              setSeqNo(other.getSeqNo());
            }
            switch (other.getMessageWriteStatusCase()) {
              case WRITTEN: {
                mergeWritten(other.getWritten());
                break;
              }
              case SKIPPED: {
                mergeSkipped(other.getSkipped());
                break;
              }
              case MESSAGEWRITESTATUS_NOT_SET: {
                break;
              }
            }
            this.mergeUnknownFields(other.getUnknownFields());
            onChanged();
            return this;
          }

          @java.lang.Override
          public final boolean isInitialized() {
            return true;
          }

          @java.lang.Override
          public Builder mergeFrom(
              com.google.protobuf.CodedInputStream input,
              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
              throws java.io.IOException {
            if (extensionRegistry == null) {
              throw new java.lang.NullPointerException();
            }
            try {
              boolean done = false;
              while (!done) {
                int tag = input.readTag();
                switch (tag) {
                  case 0:
                    done = true;
                    break;
                  case 8: {
                    seqNo_ = input.readInt64();
                    bitField0_ |= 0x00000001;
                    break;
                  } // case 8
                  case 18: {
                    input.readMessage(
                        getWrittenFieldBuilder().getBuilder(),
                        extensionRegistry);
                    messageWriteStatusCase_ = 2;
                    break;
                  } // case 18
                  case 26: {
                    input.readMessage(
                        getSkippedFieldBuilder().getBuilder(),
                        extensionRegistry);
                    messageWriteStatusCase_ = 3;
                    break;
                  } // case 26
                  default: {
                    if (!super.parseUnknownField(input, extensionRegistry, tag)) {
                      done = true; // was an endgroup tag
                    }
                    break;
                  } // default:
                } // switch (tag)
              } // while (!done)
            } catch (com.google.protobuf.InvalidProtocolBufferException e) {
              throw e.unwrapIOException();
            } finally {
              onChanged();
            } // finally
            return this;
          }
          private int messageWriteStatusCase_ = 0;
          private java.lang.Object messageWriteStatus_;
          public MessageWriteStatusCase
              getMessageWriteStatusCase() {
            return MessageWriteStatusCase.forNumber(
                messageWriteStatusCase_);
          }

          public Builder clearMessageWriteStatus() {
            messageWriteStatusCase_ = 0;
            messageWriteStatus_ = null;
            onChanged();
            return this;
          }

          private int bitField0_;

          private long seqNo_ ;
          /**
           * 
           * Sequence number as in WriteRequest.
           * 
           *
           * int64 seq_no = 1;
           * @return The seqNo.
           */
          @java.lang.Override
          public long getSeqNo() {
            return seqNo_;
          }
          /**
           * 
           * Sequence number as in WriteRequest.
           * 
           *
           * int64 seq_no = 1;
           * @param value The seqNo to set.
           * @return This builder for chaining.
           */
          public Builder setSeqNo(long value) {

            seqNo_ = value;
            bitField0_ |= 0x00000001;
            onChanged();
            return this;
          }
          /**
           * 
           * Sequence number as in WriteRequest.
           * 
           *
           * int64 seq_no = 1;
           * @return This builder for chaining.
           */
          public Builder clearSeqNo() {
            bitField0_ = (bitField0_ & ~0x00000001);
            seqNo_ = 0L;
            onChanged();
            return this;
          }

          private com.google.protobuf.SingleFieldBuilderV3<
              tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.Written, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.Written.Builder, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.WrittenOrBuilder> writtenBuilder_;
          /**
           * .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteAck.Written written = 2;
           * @return Whether the written field is set.
           */
          @java.lang.Override
          public boolean hasWritten() {
            return messageWriteStatusCase_ == 2;
          }
          /**
           * .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteAck.Written written = 2;
           * @return The written.
           */
          @java.lang.Override
          public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.Written getWritten() {
            if (writtenBuilder_ == null) {
              if (messageWriteStatusCase_ == 2) {
                return (tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.Written) messageWriteStatus_;
              }
              return tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.Written.getDefaultInstance();
            } else {
              if (messageWriteStatusCase_ == 2) {
                return writtenBuilder_.getMessage();
              }
              return tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.Written.getDefaultInstance();
            }
          }
          /**
           * .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteAck.Written written = 2;
           */
          public Builder setWritten(tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.Written value) {
            if (writtenBuilder_ == null) {
              if (value == null) {
                throw new NullPointerException();
              }
              messageWriteStatus_ = value;
              onChanged();
            } else {
              writtenBuilder_.setMessage(value);
            }
            messageWriteStatusCase_ = 2;
            return this;
          }
          /**
           * .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteAck.Written written = 2;
           */
          public Builder setWritten(
              tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.Written.Builder builderForValue) {
            if (writtenBuilder_ == null) {
              messageWriteStatus_ = builderForValue.build();
              onChanged();
            } else {
              writtenBuilder_.setMessage(builderForValue.build());
            }
            messageWriteStatusCase_ = 2;
            return this;
          }
          /**
           * .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteAck.Written written = 2;
           */
          public Builder mergeWritten(tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.Written value) {
            if (writtenBuilder_ == null) {
              if (messageWriteStatusCase_ == 2 &&
                  messageWriteStatus_ != tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.Written.getDefaultInstance()) {
                messageWriteStatus_ = tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.Written.newBuilder((tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.Written) messageWriteStatus_)
                    .mergeFrom(value).buildPartial();
              } else {
                messageWriteStatus_ = value;
              }
              onChanged();
            } else {
              if (messageWriteStatusCase_ == 2) {
                writtenBuilder_.mergeFrom(value);
              } else {
                writtenBuilder_.setMessage(value);
              }
            }
            messageWriteStatusCase_ = 2;
            return this;
          }
          /**
           * .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteAck.Written written = 2;
           */
          public Builder clearWritten() {
            if (writtenBuilder_ == null) {
              if (messageWriteStatusCase_ == 2) {
                messageWriteStatusCase_ = 0;
                messageWriteStatus_ = null;
                onChanged();
              }
            } else {
              if (messageWriteStatusCase_ == 2) {
                messageWriteStatusCase_ = 0;
                messageWriteStatus_ = null;
              }
              writtenBuilder_.clear();
            }
            return this;
          }
          /**
           * .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteAck.Written written = 2;
           */
          public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.Written.Builder getWrittenBuilder() {
            return getWrittenFieldBuilder().getBuilder();
          }
          /**
           * .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteAck.Written written = 2;
           */
          @java.lang.Override
          public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.WrittenOrBuilder getWrittenOrBuilder() {
            if ((messageWriteStatusCase_ == 2) && (writtenBuilder_ != null)) {
              return writtenBuilder_.getMessageOrBuilder();
            } else {
              if (messageWriteStatusCase_ == 2) {
                return (tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.Written) messageWriteStatus_;
              }
              return tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.Written.getDefaultInstance();
            }
          }
          /**
           * .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteAck.Written written = 2;
           */
          private com.google.protobuf.SingleFieldBuilderV3<
              tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.Written, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.Written.Builder, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.WrittenOrBuilder> 
              getWrittenFieldBuilder() {
            if (writtenBuilder_ == null) {
              if (!(messageWriteStatusCase_ == 2)) {
                messageWriteStatus_ = tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.Written.getDefaultInstance();
              }
              writtenBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
                  tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.Written, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.Written.Builder, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.WrittenOrBuilder>(
                      (tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.Written) messageWriteStatus_,
                      getParentForChildren(),
                      isClean());
              messageWriteStatus_ = null;
            }
            messageWriteStatusCase_ = 2;
            onChanged();
            return writtenBuilder_;
          }

          private com.google.protobuf.SingleFieldBuilderV3<
              tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.Skipped, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.Skipped.Builder, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.SkippedOrBuilder> skippedBuilder_;
          /**
           * .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteAck.Skipped skipped = 3;
           * @return Whether the skipped field is set.
           */
          @java.lang.Override
          public boolean hasSkipped() {
            return messageWriteStatusCase_ == 3;
          }
          /**
           * .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteAck.Skipped skipped = 3;
           * @return The skipped.
           */
          @java.lang.Override
          public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.Skipped getSkipped() {
            if (skippedBuilder_ == null) {
              if (messageWriteStatusCase_ == 3) {
                return (tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.Skipped) messageWriteStatus_;
              }
              return tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.Skipped.getDefaultInstance();
            } else {
              if (messageWriteStatusCase_ == 3) {
                return skippedBuilder_.getMessage();
              }
              return tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.Skipped.getDefaultInstance();
            }
          }
          /**
           * .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteAck.Skipped skipped = 3;
           */
          public Builder setSkipped(tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.Skipped value) {
            if (skippedBuilder_ == null) {
              if (value == null) {
                throw new NullPointerException();
              }
              messageWriteStatus_ = value;
              onChanged();
            } else {
              skippedBuilder_.setMessage(value);
            }
            messageWriteStatusCase_ = 3;
            return this;
          }
          /**
           * .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteAck.Skipped skipped = 3;
           */
          public Builder setSkipped(
              tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.Skipped.Builder builderForValue) {
            if (skippedBuilder_ == null) {
              messageWriteStatus_ = builderForValue.build();
              onChanged();
            } else {
              skippedBuilder_.setMessage(builderForValue.build());
            }
            messageWriteStatusCase_ = 3;
            return this;
          }
          /**
           * .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteAck.Skipped skipped = 3;
           */
          public Builder mergeSkipped(tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.Skipped value) {
            if (skippedBuilder_ == null) {
              if (messageWriteStatusCase_ == 3 &&
                  messageWriteStatus_ != tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.Skipped.getDefaultInstance()) {
                messageWriteStatus_ = tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.Skipped.newBuilder((tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.Skipped) messageWriteStatus_)
                    .mergeFrom(value).buildPartial();
              } else {
                messageWriteStatus_ = value;
              }
              onChanged();
            } else {
              if (messageWriteStatusCase_ == 3) {
                skippedBuilder_.mergeFrom(value);
              } else {
                skippedBuilder_.setMessage(value);
              }
            }
            messageWriteStatusCase_ = 3;
            return this;
          }
          /**
           * .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteAck.Skipped skipped = 3;
           */
          public Builder clearSkipped() {
            if (skippedBuilder_ == null) {
              if (messageWriteStatusCase_ == 3) {
                messageWriteStatusCase_ = 0;
                messageWriteStatus_ = null;
                onChanged();
              }
            } else {
              if (messageWriteStatusCase_ == 3) {
                messageWriteStatusCase_ = 0;
                messageWriteStatus_ = null;
              }
              skippedBuilder_.clear();
            }
            return this;
          }
          /**
           * .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteAck.Skipped skipped = 3;
           */
          public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.Skipped.Builder getSkippedBuilder() {
            return getSkippedFieldBuilder().getBuilder();
          }
          /**
           * .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteAck.Skipped skipped = 3;
           */
          @java.lang.Override
          public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.SkippedOrBuilder getSkippedOrBuilder() {
            if ((messageWriteStatusCase_ == 3) && (skippedBuilder_ != null)) {
              return skippedBuilder_.getMessageOrBuilder();
            } else {
              if (messageWriteStatusCase_ == 3) {
                return (tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.Skipped) messageWriteStatus_;
              }
              return tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.Skipped.getDefaultInstance();
            }
          }
          /**
           * .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteAck.Skipped skipped = 3;
           */
          private com.google.protobuf.SingleFieldBuilderV3<
              tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.Skipped, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.Skipped.Builder, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.SkippedOrBuilder> 
              getSkippedFieldBuilder() {
            if (skippedBuilder_ == null) {
              if (!(messageWriteStatusCase_ == 3)) {
                messageWriteStatus_ = tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.Skipped.getDefaultInstance();
              }
              skippedBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
                  tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.Skipped, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.Skipped.Builder, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.SkippedOrBuilder>(
                      (tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.Skipped) messageWriteStatus_,
                      getParentForChildren(),
                      isClean());
              messageWriteStatus_ = null;
            }
            messageWriteStatusCase_ = 3;
            onChanged();
            return skippedBuilder_;
          }
          @java.lang.Override
          public final Builder setUnknownFields(
              final com.google.protobuf.UnknownFieldSet unknownFields) {
            return super.setUnknownFields(unknownFields);
          }

          @java.lang.Override
          public final Builder mergeUnknownFields(
              final com.google.protobuf.UnknownFieldSet unknownFields) {
            return super.mergeUnknownFields(unknownFields);
          }


          // @@protoc_insertion_point(builder_scope:Ydb.Topic.StreamWriteMessage.WriteResponse.WriteAck)
        }

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          // @@protoc_insertion_point(interface_extends:Ydb.Topic.StreamWriteMessage.WriteResponse.WriteStatistics)
          com.google.protobuf.MessageOrBuilder {

        /**
         * 
         * Time spent in persisting of data. Same for each message in response.
         * 
         *
         * .google.protobuf.Duration persisting_time = 1;
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        boolean hasPersistingTime();
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         * 
         * Time spent in persisting of data. Same for each message in response.
         * 
         *
         * .google.protobuf.Duration persisting_time = 1;
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         * 
         * Time spent in persisting of data. Same for each message in response.
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         *
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        /**
         * 
         * Time spent in queue before persisting, minimal of all messages in response.
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         *
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         * 
         * Time spent in queue before persisting, minimal of all messages in response.
         * 
         *
         * .google.protobuf.Duration min_queue_wait_time = 2;
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         * 
         * Time spent in queue before persisting, minimal of all messages in response.
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         * 
         * Time spent in queue before persisting, maximal of all messages in response.
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         * 
         * Time spent in queue before persisting, maximal of all messages in response.
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         * Time spent in queue before persisting, maximal of all messages in response.
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         * 
         * Time spent awaiting for partition write quota. Same for each message in response.
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        boolean hasPartitionQuotaWaitTime();
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         * 
         * Time spent awaiting for partition write quota. Same for each message in response.
         * 
         *
         * .google.protobuf.Duration partition_quota_wait_time = 4;
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         * 
         * Time spent awaiting for partition write quota. Same for each message in response.
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         * 
         * Time spent awaiting for topic write quota. Same for each message in response.
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         * 
         * Time spent awaiting for topic write quota. Same for each message in response.
         * 
         *
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         * 
         * Time spent awaiting for topic write quota. Same for each message in response.
         * 
         *
         * .google.protobuf.Duration topic_quota_wait_time = 5;
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       * 
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          public com.google.protobuf.Descriptors.Descriptor
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          }

          @java.lang.Override
          public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteStatistics getDefaultInstanceForType() {
            return tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteStatistics.getDefaultInstance();
          }

          @java.lang.Override
          public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteStatistics build() {
            tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteStatistics result = buildPartial();
            if (!result.isInitialized()) {
              throw newUninitializedMessageException(result);
            }
            return result;
          }

          @java.lang.Override
          public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteStatistics buildPartial() {
            tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteStatistics result = new tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteStatistics(this);
            if (bitField0_ != 0) { buildPartial0(result); }
            onBuilt();
            return result;
          }

          private void buildPartial0(tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteStatistics result) {
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            if (((from_bitField0_ & 0x00000004) != 0)) {
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          @java.lang.Override
          public Builder setField(
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          public Builder clearField(
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          @java.lang.Override
          public Builder clearOneof(
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          @java.lang.Override
          public Builder addRepeatedField(
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            return super.addRepeatedField(field, value);
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            if (other instanceof tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteStatistics) {
              return mergeFrom((tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteStatistics)other);
            } else {
              super.mergeFrom(other);
              return this;
            }
          }

          public Builder mergeFrom(tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteStatistics other) {
            if (other == tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteStatistics.getDefaultInstance()) return this;
            if (other.hasPersistingTime()) {
              mergePersistingTime(other.getPersistingTime());
            }
            if (other.hasMinQueueWaitTime()) {
              mergeMinQueueWaitTime(other.getMinQueueWaitTime());
            }
            if (other.hasMaxQueueWaitTime()) {
              mergeMaxQueueWaitTime(other.getMaxQueueWaitTime());
            }
            if (other.hasPartitionQuotaWaitTime()) {
              mergePartitionQuotaWaitTime(other.getPartitionQuotaWaitTime());
            }
            if (other.hasTopicQuotaWaitTime()) {
              mergeTopicQuotaWaitTime(other.getTopicQuotaWaitTime());
            }
            this.mergeUnknownFields(other.getUnknownFields());
            onChanged();
            return this;
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          @java.lang.Override
          public final boolean isInitialized() {
            return true;
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          @java.lang.Override
          public Builder mergeFrom(
              com.google.protobuf.CodedInputStream input,
              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
              throws java.io.IOException {
            if (extensionRegistry == null) {
              throw new java.lang.NullPointerException();
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            try {
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              while (!done) {
                int tag = input.readTag();
                switch (tag) {
                  case 0:
                    done = true;
                    break;
                  case 10: {
                    input.readMessage(
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                    break;
                  } // case 10
                  case 18: {
                    input.readMessage(
                        getMinQueueWaitTimeFieldBuilder().getBuilder(),
                        extensionRegistry);
                    bitField0_ |= 0x00000002;
                    break;
                  } // case 18
                  case 26: {
                    input.readMessage(
                        getMaxQueueWaitTimeFieldBuilder().getBuilder(),
                        extensionRegistry);
                    bitField0_ |= 0x00000004;
                    break;
                  } // case 26
                  case 34: {
                    input.readMessage(
                        getPartitionQuotaWaitTimeFieldBuilder().getBuilder(),
                        extensionRegistry);
                    bitField0_ |= 0x00000008;
                    break;
                  } // case 34
                  case 42: {
                    input.readMessage(
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                        extensionRegistry);
                    bitField0_ |= 0x00000010;
                    break;
                  } // case 42
                  default: {
                    if (!super.parseUnknownField(input, extensionRegistry, tag)) {
                      done = true; // was an endgroup tag
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                    break;
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                } // switch (tag)
              } // while (!done)
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          private com.google.protobuf.SingleFieldBuilderV3<
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          /**
           * 
           * Time spent in persisting of data. Same for each message in response.
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           *
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           * @return Whether the persistingTime field is set.
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          /**
           * 
           * Time spent in persisting of data. Same for each message in response.
           * 
           *
           * .google.protobuf.Duration persisting_time = 1;
           * @return The persistingTime.
           */
          public com.google.protobuf.Duration getPersistingTime() {
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          /**
           * 
           * Time spent in persisting of data. Same for each message in response.
           * 
           *
           * .google.protobuf.Duration persisting_time = 1;
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          public Builder setPersistingTime(com.google.protobuf.Duration value) {
            if (persistingTimeBuilder_ == null) {
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                throw new NullPointerException();
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              persistingTime_ = value;
            } else {
              persistingTimeBuilder_.setMessage(value);
            }
            bitField0_ |= 0x00000001;
            onChanged();
            return this;
          }
          /**
           * 
           * Time spent in persisting of data. Same for each message in response.
           * 
           *
           * .google.protobuf.Duration persisting_time = 1;
           */
          public Builder setPersistingTime(
              com.google.protobuf.Duration.Builder builderForValue) {
            if (persistingTimeBuilder_ == null) {
              persistingTime_ = builderForValue.build();
            } else {
              persistingTimeBuilder_.setMessage(builderForValue.build());
            }
            bitField0_ |= 0x00000001;
            onChanged();
            return this;
          }
          /**
           * 
           * Time spent in persisting of data. Same for each message in response.
           * 
           *
           * .google.protobuf.Duration persisting_time = 1;
           */
          public Builder mergePersistingTime(com.google.protobuf.Duration value) {
            if (persistingTimeBuilder_ == null) {
              if (((bitField0_ & 0x00000001) != 0) &&
                persistingTime_ != null &&
                persistingTime_ != com.google.protobuf.Duration.getDefaultInstance()) {
                getPersistingTimeBuilder().mergeFrom(value);
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                persistingTime_ = value;
              }
            } else {
              persistingTimeBuilder_.mergeFrom(value);
            }
            if (persistingTime_ != null) {
              bitField0_ |= 0x00000001;
              onChanged();
            }
            return this;
          }
          /**
           * 
           * Time spent in persisting of data. Same for each message in response.
           * 
           *
           * .google.protobuf.Duration persisting_time = 1;
           */
          public Builder clearPersistingTime() {
            bitField0_ = (bitField0_ & ~0x00000001);
            persistingTime_ = null;
            if (persistingTimeBuilder_ != null) {
              persistingTimeBuilder_.dispose();
              persistingTimeBuilder_ = null;
            }
            onChanged();
            return this;
          }
          /**
           * 
           * Time spent in persisting of data. Same for each message in response.
           * 
           *
           * .google.protobuf.Duration persisting_time = 1;
           */
          public com.google.protobuf.Duration.Builder getPersistingTimeBuilder() {
            bitField0_ |= 0x00000001;
            onChanged();
            return getPersistingTimeFieldBuilder().getBuilder();
          }
          /**
           * 
           * Time spent in persisting of data. Same for each message in response.
           * 
           *
           * .google.protobuf.Duration persisting_time = 1;
           */
          public com.google.protobuf.DurationOrBuilder getPersistingTimeOrBuilder() {
            if (persistingTimeBuilder_ != null) {
              return persistingTimeBuilder_.getMessageOrBuilder();
            } else {
              return persistingTime_ == null ?
                  com.google.protobuf.Duration.getDefaultInstance() : persistingTime_;
            }
          }
          /**
           * 
           * Time spent in persisting of data. Same for each message in response.
           * 
           *
           * .google.protobuf.Duration persisting_time = 1;
           */
          private com.google.protobuf.SingleFieldBuilderV3<
              com.google.protobuf.Duration, com.google.protobuf.Duration.Builder, com.google.protobuf.DurationOrBuilder> 
              getPersistingTimeFieldBuilder() {
            if (persistingTimeBuilder_ == null) {
              persistingTimeBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
                  com.google.protobuf.Duration, com.google.protobuf.Duration.Builder, com.google.protobuf.DurationOrBuilder>(
                      getPersistingTime(),
                      getParentForChildren(),
                      isClean());
              persistingTime_ = null;
            }
            return persistingTimeBuilder_;
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          private com.google.protobuf.Duration minQueueWaitTime_;
          private com.google.protobuf.SingleFieldBuilderV3<
              com.google.protobuf.Duration, com.google.protobuf.Duration.Builder, com.google.protobuf.DurationOrBuilder> minQueueWaitTimeBuilder_;
          /**
           * 
           * Time spent in queue before persisting, minimal of all messages in response.
           * 
           *
           * .google.protobuf.Duration min_queue_wait_time = 2;
           * @return Whether the minQueueWaitTime field is set.
           */
          public boolean hasMinQueueWaitTime() {
            return ((bitField0_ & 0x00000002) != 0);
          }
          /**
           * 
           * Time spent in queue before persisting, minimal of all messages in response.
           * 
           *
           * .google.protobuf.Duration min_queue_wait_time = 2;
           * @return The minQueueWaitTime.
           */
          public com.google.protobuf.Duration getMinQueueWaitTime() {
            if (minQueueWaitTimeBuilder_ == null) {
              return minQueueWaitTime_ == null ? com.google.protobuf.Duration.getDefaultInstance() : minQueueWaitTime_;
            } else {
              return minQueueWaitTimeBuilder_.getMessage();
            }
          }
          /**
           * 
           * Time spent in queue before persisting, minimal of all messages in response.
           * 
           *
           * .google.protobuf.Duration min_queue_wait_time = 2;
           */
          public Builder setMinQueueWaitTime(com.google.protobuf.Duration value) {
            if (minQueueWaitTimeBuilder_ == null) {
              if (value == null) {
                throw new NullPointerException();
              }
              minQueueWaitTime_ = value;
            } else {
              minQueueWaitTimeBuilder_.setMessage(value);
            }
            bitField0_ |= 0x00000002;
            onChanged();
            return this;
          }
          /**
           * 
           * Time spent in queue before persisting, minimal of all messages in response.
           * 
           *
           * .google.protobuf.Duration min_queue_wait_time = 2;
           */
          public Builder setMinQueueWaitTime(
              com.google.protobuf.Duration.Builder builderForValue) {
            if (minQueueWaitTimeBuilder_ == null) {
              minQueueWaitTime_ = builderForValue.build();
            } else {
              minQueueWaitTimeBuilder_.setMessage(builderForValue.build());
            }
            bitField0_ |= 0x00000002;
            onChanged();
            return this;
          }
          /**
           * 
           * Time spent in queue before persisting, minimal of all messages in response.
           * 
           *
           * .google.protobuf.Duration min_queue_wait_time = 2;
           */
          public Builder mergeMinQueueWaitTime(com.google.protobuf.Duration value) {
            if (minQueueWaitTimeBuilder_ == null) {
              if (((bitField0_ & 0x00000002) != 0) &&
                minQueueWaitTime_ != null &&
                minQueueWaitTime_ != com.google.protobuf.Duration.getDefaultInstance()) {
                getMinQueueWaitTimeBuilder().mergeFrom(value);
              } else {
                minQueueWaitTime_ = value;
              }
            } else {
              minQueueWaitTimeBuilder_.mergeFrom(value);
            }
            if (minQueueWaitTime_ != null) {
              bitField0_ |= 0x00000002;
              onChanged();
            }
            return this;
          }
          /**
           * 
           * Time spent in queue before persisting, minimal of all messages in response.
           * 
           *
           * .google.protobuf.Duration min_queue_wait_time = 2;
           */
          public Builder clearMinQueueWaitTime() {
            bitField0_ = (bitField0_ & ~0x00000002);
            minQueueWaitTime_ = null;
            if (minQueueWaitTimeBuilder_ != null) {
              minQueueWaitTimeBuilder_.dispose();
              minQueueWaitTimeBuilder_ = null;
            }
            onChanged();
            return this;
          }
          /**
           * 
           * Time spent in queue before persisting, minimal of all messages in response.
           * 
           *
           * .google.protobuf.Duration min_queue_wait_time = 2;
           */
          public com.google.protobuf.Duration.Builder getMinQueueWaitTimeBuilder() {
            bitField0_ |= 0x00000002;
            onChanged();
            return getMinQueueWaitTimeFieldBuilder().getBuilder();
          }
          /**
           * 
           * Time spent in queue before persisting, minimal of all messages in response.
           * 
           *
           * .google.protobuf.Duration min_queue_wait_time = 2;
           */
          public com.google.protobuf.DurationOrBuilder getMinQueueWaitTimeOrBuilder() {
            if (minQueueWaitTimeBuilder_ != null) {
              return minQueueWaitTimeBuilder_.getMessageOrBuilder();
            } else {
              return minQueueWaitTime_ == null ?
                  com.google.protobuf.Duration.getDefaultInstance() : minQueueWaitTime_;
            }
          }
          /**
           * 
           * Time spent in queue before persisting, minimal of all messages in response.
           * 
           *
           * .google.protobuf.Duration min_queue_wait_time = 2;
           */
          private com.google.protobuf.SingleFieldBuilderV3<
              com.google.protobuf.Duration, com.google.protobuf.Duration.Builder, com.google.protobuf.DurationOrBuilder> 
              getMinQueueWaitTimeFieldBuilder() {
            if (minQueueWaitTimeBuilder_ == null) {
              minQueueWaitTimeBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
                  com.google.protobuf.Duration, com.google.protobuf.Duration.Builder, com.google.protobuf.DurationOrBuilder>(
                      getMinQueueWaitTime(),
                      getParentForChildren(),
                      isClean());
              minQueueWaitTime_ = null;
            }
            return minQueueWaitTimeBuilder_;
          }

          private com.google.protobuf.Duration maxQueueWaitTime_;
          private com.google.protobuf.SingleFieldBuilderV3<
              com.google.protobuf.Duration, com.google.protobuf.Duration.Builder, com.google.protobuf.DurationOrBuilder> maxQueueWaitTimeBuilder_;
          /**
           * 
           * Time spent in queue before persisting, maximal of all messages in response.
           * 
           *
           * .google.protobuf.Duration max_queue_wait_time = 3;
           * @return Whether the maxQueueWaitTime field is set.
           */
          public boolean hasMaxQueueWaitTime() {
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          }
          /**
           * 
           * Time spent in queue before persisting, maximal of all messages in response.
           * 
           *
           * .google.protobuf.Duration max_queue_wait_time = 3;
           * @return The maxQueueWaitTime.
           */
          public com.google.protobuf.Duration getMaxQueueWaitTime() {
            if (maxQueueWaitTimeBuilder_ == null) {
              return maxQueueWaitTime_ == null ? com.google.protobuf.Duration.getDefaultInstance() : maxQueueWaitTime_;
            } else {
              return maxQueueWaitTimeBuilder_.getMessage();
            }
          }
          /**
           * 
           * Time spent in queue before persisting, maximal of all messages in response.
           * 
           *
           * .google.protobuf.Duration max_queue_wait_time = 3;
           */
          public Builder setMaxQueueWaitTime(com.google.protobuf.Duration value) {
            if (maxQueueWaitTimeBuilder_ == null) {
              if (value == null) {
                throw new NullPointerException();
              }
              maxQueueWaitTime_ = value;
            } else {
              maxQueueWaitTimeBuilder_.setMessage(value);
            }
            bitField0_ |= 0x00000004;
            onChanged();
            return this;
          }
          /**
           * 
           * Time spent in queue before persisting, maximal of all messages in response.
           * 
           *
           * .google.protobuf.Duration max_queue_wait_time = 3;
           */
          public Builder setMaxQueueWaitTime(
              com.google.protobuf.Duration.Builder builderForValue) {
            if (maxQueueWaitTimeBuilder_ == null) {
              maxQueueWaitTime_ = builderForValue.build();
            } else {
              maxQueueWaitTimeBuilder_.setMessage(builderForValue.build());
            }
            bitField0_ |= 0x00000004;
            onChanged();
            return this;
          }
          /**
           * 
           * Time spent in queue before persisting, maximal of all messages in response.
           * 
           *
           * .google.protobuf.Duration max_queue_wait_time = 3;
           */
          public Builder mergeMaxQueueWaitTime(com.google.protobuf.Duration value) {
            if (maxQueueWaitTimeBuilder_ == null) {
              if (((bitField0_ & 0x00000004) != 0) &&
                maxQueueWaitTime_ != null &&
                maxQueueWaitTime_ != com.google.protobuf.Duration.getDefaultInstance()) {
                getMaxQueueWaitTimeBuilder().mergeFrom(value);
              } else {
                maxQueueWaitTime_ = value;
              }
            } else {
              maxQueueWaitTimeBuilder_.mergeFrom(value);
            }
            if (maxQueueWaitTime_ != null) {
              bitField0_ |= 0x00000004;
              onChanged();
            }
            return this;
          }
          /**
           * 
           * Time spent in queue before persisting, maximal of all messages in response.
           * 
           *
           * .google.protobuf.Duration max_queue_wait_time = 3;
           */
          public Builder clearMaxQueueWaitTime() {
            bitField0_ = (bitField0_ & ~0x00000004);
            maxQueueWaitTime_ = null;
            if (maxQueueWaitTimeBuilder_ != null) {
              maxQueueWaitTimeBuilder_.dispose();
              maxQueueWaitTimeBuilder_ = null;
            }
            onChanged();
            return this;
          }
          /**
           * 
           * Time spent in queue before persisting, maximal of all messages in response.
           * 
           *
           * .google.protobuf.Duration max_queue_wait_time = 3;
           */
          public com.google.protobuf.Duration.Builder getMaxQueueWaitTimeBuilder() {
            bitField0_ |= 0x00000004;
            onChanged();
            return getMaxQueueWaitTimeFieldBuilder().getBuilder();
          }
          /**
           * 
           * Time spent in queue before persisting, maximal of all messages in response.
           * 
           *
           * .google.protobuf.Duration max_queue_wait_time = 3;
           */
          public com.google.protobuf.DurationOrBuilder getMaxQueueWaitTimeOrBuilder() {
            if (maxQueueWaitTimeBuilder_ != null) {
              return maxQueueWaitTimeBuilder_.getMessageOrBuilder();
            } else {
              return maxQueueWaitTime_ == null ?
                  com.google.protobuf.Duration.getDefaultInstance() : maxQueueWaitTime_;
            }
          }
          /**
           * 
           * Time spent in queue before persisting, maximal of all messages in response.
           * 
           *
           * .google.protobuf.Duration max_queue_wait_time = 3;
           */
          private com.google.protobuf.SingleFieldBuilderV3<
              com.google.protobuf.Duration, com.google.protobuf.Duration.Builder, com.google.protobuf.DurationOrBuilder> 
              getMaxQueueWaitTimeFieldBuilder() {
            if (maxQueueWaitTimeBuilder_ == null) {
              maxQueueWaitTimeBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
                  com.google.protobuf.Duration, com.google.protobuf.Duration.Builder, com.google.protobuf.DurationOrBuilder>(
                      getMaxQueueWaitTime(),
                      getParentForChildren(),
                      isClean());
              maxQueueWaitTime_ = null;
            }
            return maxQueueWaitTimeBuilder_;
          }

          private com.google.protobuf.Duration partitionQuotaWaitTime_;
          private com.google.protobuf.SingleFieldBuilderV3<
              com.google.protobuf.Duration, com.google.protobuf.Duration.Builder, com.google.protobuf.DurationOrBuilder> partitionQuotaWaitTimeBuilder_;
          /**
           * 
           * Time spent awaiting for partition write quota. Same for each message in response.
           * 
           *
           * .google.protobuf.Duration partition_quota_wait_time = 4;
           * @return Whether the partitionQuotaWaitTime field is set.
           */
          public boolean hasPartitionQuotaWaitTime() {
            return ((bitField0_ & 0x00000008) != 0);
          }
          /**
           * 
           * Time spent awaiting for partition write quota. Same for each message in response.
           * 
           *
           * .google.protobuf.Duration partition_quota_wait_time = 4;
           * @return The partitionQuotaWaitTime.
           */
          public com.google.protobuf.Duration getPartitionQuotaWaitTime() {
            if (partitionQuotaWaitTimeBuilder_ == null) {
              return partitionQuotaWaitTime_ == null ? com.google.protobuf.Duration.getDefaultInstance() : partitionQuotaWaitTime_;
            } else {
              return partitionQuotaWaitTimeBuilder_.getMessage();
            }
          }
          /**
           * 
           * Time spent awaiting for partition write quota. Same for each message in response.
           * 
           *
           * .google.protobuf.Duration partition_quota_wait_time = 4;
           */
          public Builder setPartitionQuotaWaitTime(com.google.protobuf.Duration value) {
            if (partitionQuotaWaitTimeBuilder_ == null) {
              if (value == null) {
                throw new NullPointerException();
              }
              partitionQuotaWaitTime_ = value;
            } else {
              partitionQuotaWaitTimeBuilder_.setMessage(value);
            }
            bitField0_ |= 0x00000008;
            onChanged();
            return this;
          }
          /**
           * 
           * Time spent awaiting for partition write quota. Same for each message in response.
           * 
           *
           * .google.protobuf.Duration partition_quota_wait_time = 4;
           */
          public Builder setPartitionQuotaWaitTime(
              com.google.protobuf.Duration.Builder builderForValue) {
            if (partitionQuotaWaitTimeBuilder_ == null) {
              partitionQuotaWaitTime_ = builderForValue.build();
            } else {
              partitionQuotaWaitTimeBuilder_.setMessage(builderForValue.build());
            }
            bitField0_ |= 0x00000008;
            onChanged();
            return this;
          }
          /**
           * 
           * Time spent awaiting for partition write quota. Same for each message in response.
           * 
           *
           * .google.protobuf.Duration partition_quota_wait_time = 4;
           */
          public Builder mergePartitionQuotaWaitTime(com.google.protobuf.Duration value) {
            if (partitionQuotaWaitTimeBuilder_ == null) {
              if (((bitField0_ & 0x00000008) != 0) &&
                partitionQuotaWaitTime_ != null &&
                partitionQuotaWaitTime_ != com.google.protobuf.Duration.getDefaultInstance()) {
                getPartitionQuotaWaitTimeBuilder().mergeFrom(value);
              } else {
                partitionQuotaWaitTime_ = value;
              }
            } else {
              partitionQuotaWaitTimeBuilder_.mergeFrom(value);
            }
            if (partitionQuotaWaitTime_ != null) {
              bitField0_ |= 0x00000008;
              onChanged();
            }
            return this;
          }
          /**
           * 
           * Time spent awaiting for partition write quota. Same for each message in response.
           * 
           *
           * .google.protobuf.Duration partition_quota_wait_time = 4;
           */
          public Builder clearPartitionQuotaWaitTime() {
            bitField0_ = (bitField0_ & ~0x00000008);
            partitionQuotaWaitTime_ = null;
            if (partitionQuotaWaitTimeBuilder_ != null) {
              partitionQuotaWaitTimeBuilder_.dispose();
              partitionQuotaWaitTimeBuilder_ = null;
            }
            onChanged();
            return this;
          }
          /**
           * 
           * Time spent awaiting for partition write quota. Same for each message in response.
           * 
           *
           * .google.protobuf.Duration partition_quota_wait_time = 4;
           */
          public com.google.protobuf.Duration.Builder getPartitionQuotaWaitTimeBuilder() {
            bitField0_ |= 0x00000008;
            onChanged();
            return getPartitionQuotaWaitTimeFieldBuilder().getBuilder();
          }
          /**
           * 
           * Time spent awaiting for partition write quota. Same for each message in response.
           * 
           *
           * .google.protobuf.Duration partition_quota_wait_time = 4;
           */
          public com.google.protobuf.DurationOrBuilder getPartitionQuotaWaitTimeOrBuilder() {
            if (partitionQuotaWaitTimeBuilder_ != null) {
              return partitionQuotaWaitTimeBuilder_.getMessageOrBuilder();
            } else {
              return partitionQuotaWaitTime_ == null ?
                  com.google.protobuf.Duration.getDefaultInstance() : partitionQuotaWaitTime_;
            }
          }
          /**
           * 
           * Time spent awaiting for partition write quota. Same for each message in response.
           * 
           *
           * .google.protobuf.Duration partition_quota_wait_time = 4;
           */
          private com.google.protobuf.SingleFieldBuilderV3<
              com.google.protobuf.Duration, com.google.protobuf.Duration.Builder, com.google.protobuf.DurationOrBuilder> 
              getPartitionQuotaWaitTimeFieldBuilder() {
            if (partitionQuotaWaitTimeBuilder_ == null) {
              partitionQuotaWaitTimeBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
                  com.google.protobuf.Duration, com.google.protobuf.Duration.Builder, com.google.protobuf.DurationOrBuilder>(
                      getPartitionQuotaWaitTime(),
                      getParentForChildren(),
                      isClean());
              partitionQuotaWaitTime_ = null;
            }
            return partitionQuotaWaitTimeBuilder_;
          }

          private com.google.protobuf.Duration topicQuotaWaitTime_;
          private com.google.protobuf.SingleFieldBuilderV3<
              com.google.protobuf.Duration, com.google.protobuf.Duration.Builder, com.google.protobuf.DurationOrBuilder> topicQuotaWaitTimeBuilder_;
          /**
           * 
           * Time spent awaiting for topic write quota. Same for each message in response.
           * 
           *
           * .google.protobuf.Duration topic_quota_wait_time = 5;
           * @return Whether the topicQuotaWaitTime field is set.
           */
          public boolean hasTopicQuotaWaitTime() {
            return ((bitField0_ & 0x00000010) != 0);
          }
          /**
           * 
           * Time spent awaiting for topic write quota. Same for each message in response.
           * 
           *
           * .google.protobuf.Duration topic_quota_wait_time = 5;
           * @return The topicQuotaWaitTime.
           */
          public com.google.protobuf.Duration getTopicQuotaWaitTime() {
            if (topicQuotaWaitTimeBuilder_ == null) {
              return topicQuotaWaitTime_ == null ? com.google.protobuf.Duration.getDefaultInstance() : topicQuotaWaitTime_;
            } else {
              return topicQuotaWaitTimeBuilder_.getMessage();
            }
          }
          /**
           * 
           * Time spent awaiting for topic write quota. Same for each message in response.
           * 
           *
           * .google.protobuf.Duration topic_quota_wait_time = 5;
           */
          public Builder setTopicQuotaWaitTime(com.google.protobuf.Duration value) {
            if (topicQuotaWaitTimeBuilder_ == null) {
              if (value == null) {
                throw new NullPointerException();
              }
              topicQuotaWaitTime_ = value;
            } else {
              topicQuotaWaitTimeBuilder_.setMessage(value);
            }
            bitField0_ |= 0x00000010;
            onChanged();
            return this;
          }
          /**
           * 
           * Time spent awaiting for topic write quota. Same for each message in response.
           * 
           *
           * .google.protobuf.Duration topic_quota_wait_time = 5;
           */
          public Builder setTopicQuotaWaitTime(
              com.google.protobuf.Duration.Builder builderForValue) {
            if (topicQuotaWaitTimeBuilder_ == null) {
              topicQuotaWaitTime_ = builderForValue.build();
            } else {
              topicQuotaWaitTimeBuilder_.setMessage(builderForValue.build());
            }
            bitField0_ |= 0x00000010;
            onChanged();
            return this;
          }
          /**
           * 
           * Time spent awaiting for topic write quota. Same for each message in response.
           * 
           *
           * .google.protobuf.Duration topic_quota_wait_time = 5;
           */
          public Builder mergeTopicQuotaWaitTime(com.google.protobuf.Duration value) {
            if (topicQuotaWaitTimeBuilder_ == null) {
              if (((bitField0_ & 0x00000010) != 0) &&
                topicQuotaWaitTime_ != null &&
                topicQuotaWaitTime_ != com.google.protobuf.Duration.getDefaultInstance()) {
                getTopicQuotaWaitTimeBuilder().mergeFrom(value);
              } else {
                topicQuotaWaitTime_ = value;
              }
            } else {
              topicQuotaWaitTimeBuilder_.mergeFrom(value);
            }
            if (topicQuotaWaitTime_ != null) {
              bitField0_ |= 0x00000010;
              onChanged();
            }
            return this;
          }
          /**
           * 
           * Time spent awaiting for topic write quota. Same for each message in response.
           * 
           *
           * .google.protobuf.Duration topic_quota_wait_time = 5;
           */
          public Builder clearTopicQuotaWaitTime() {
            bitField0_ = (bitField0_ & ~0x00000010);
            topicQuotaWaitTime_ = null;
            if (topicQuotaWaitTimeBuilder_ != null) {
              topicQuotaWaitTimeBuilder_.dispose();
              topicQuotaWaitTimeBuilder_ = null;
            }
            onChanged();
            return this;
          }
          /**
           * 
           * Time spent awaiting for topic write quota. Same for each message in response.
           * 
           *
           * .google.protobuf.Duration topic_quota_wait_time = 5;
           */
          public com.google.protobuf.Duration.Builder getTopicQuotaWaitTimeBuilder() {
            bitField0_ |= 0x00000010;
            onChanged();
            return getTopicQuotaWaitTimeFieldBuilder().getBuilder();
          }
          /**
           * 
           * Time spent awaiting for topic write quota. Same for each message in response.
           * 
           *
           * .google.protobuf.Duration topic_quota_wait_time = 5;
           */
          public com.google.protobuf.DurationOrBuilder getTopicQuotaWaitTimeOrBuilder() {
            if (topicQuotaWaitTimeBuilder_ != null) {
              return topicQuotaWaitTimeBuilder_.getMessageOrBuilder();
            } else {
              return topicQuotaWaitTime_ == null ?
                  com.google.protobuf.Duration.getDefaultInstance() : topicQuotaWaitTime_;
            }
          }
          /**
           * 
           * Time spent awaiting for topic write quota. Same for each message in response.
           * 
           *
           * .google.protobuf.Duration topic_quota_wait_time = 5;
           */
          private com.google.protobuf.SingleFieldBuilderV3<
              com.google.protobuf.Duration, com.google.protobuf.Duration.Builder, com.google.protobuf.DurationOrBuilder> 
              getTopicQuotaWaitTimeFieldBuilder() {
            if (topicQuotaWaitTimeBuilder_ == null) {
              topicQuotaWaitTimeBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
                  com.google.protobuf.Duration, com.google.protobuf.Duration.Builder, com.google.protobuf.DurationOrBuilder>(
                      getTopicQuotaWaitTime(),
                      getParentForChildren(),
                      isClean());
              topicQuotaWaitTime_ = null;
            }
            return topicQuotaWaitTimeBuilder_;
          }
          @java.lang.Override
          public final Builder setUnknownFields(
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            return super.setUnknownFields(unknownFields);
          }

          @java.lang.Override
          public final Builder mergeUnknownFields(
              final com.google.protobuf.UnknownFieldSet unknownFields) {
            return super.mergeUnknownFields(unknownFields);
          }


          // @@protoc_insertion_point(builder_scope:Ydb.Topic.StreamWriteMessage.WriteResponse.WriteStatistics)
        }

        // @@protoc_insertion_point(class_scope:Ydb.Topic.StreamWriteMessage.WriteResponse.WriteStatistics)
        private static final tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteStatistics DEFAULT_INSTANCE;
        static {
          DEFAULT_INSTANCE = new tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteStatistics();
        }

        public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteStatistics getDefaultInstance() {
          return DEFAULT_INSTANCE;
        }

        private static final com.google.protobuf.Parser
            PARSER = new com.google.protobuf.AbstractParser() {
          @java.lang.Override
          public WriteStatistics parsePartialFrom(
              com.google.protobuf.CodedInputStream input,
              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
              throws com.google.protobuf.InvalidProtocolBufferException {
            Builder builder = newBuilder();
            try {
              builder.mergeFrom(input, extensionRegistry);
            } catch (com.google.protobuf.InvalidProtocolBufferException e) {
              throw e.setUnfinishedMessage(builder.buildPartial());
            } catch (com.google.protobuf.UninitializedMessageException e) {
              throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
            } catch (java.io.IOException e) {
              throw new com.google.protobuf.InvalidProtocolBufferException(e)
                  .setUnfinishedMessage(builder.buildPartial());
            }
            return builder.buildPartial();
          }
        };

        public static com.google.protobuf.Parser parser() {
          return PARSER;
        }

        @java.lang.Override
        public com.google.protobuf.Parser getParserForType() {
          return PARSER;
        }

        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteStatistics getDefaultInstanceForType() {
          return DEFAULT_INSTANCE;
        }

      }

      private int bitField0_;
      public static final int ACKS_FIELD_NUMBER = 1;
      @SuppressWarnings("serial")
      private java.util.List acks_;
      /**
       * 
       * Number of acks is equal to number of messages in the corresponding WriteRequests.
       * 
       *
       * repeated .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteAck acks = 1;
       */
      @java.lang.Override
      public java.util.List getAcksList() {
        return acks_;
      }
      /**
       * 
       * Number of acks is equal to number of messages in the corresponding WriteRequests.
       * 
       *
       * repeated .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteAck acks = 1;
       */
      @java.lang.Override
      public java.util.List 
          getAcksOrBuilderList() {
        return acks_;
      }
      /**
       * 
       * Number of acks is equal to number of messages in the corresponding WriteRequests.
       * 
       *
       * repeated .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteAck acks = 1;
       */
      @java.lang.Override
      public int getAcksCount() {
        return acks_.size();
      }
      /**
       * 
       * Number of acks is equal to number of messages in the corresponding WriteRequests.
       * 
       *
       * repeated .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteAck acks = 1;
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck getAcks(int index) {
        return acks_.get(index);
      }
      /**
       * 
       * Number of acks is equal to number of messages in the corresponding WriteRequests.
       * 
       *
       * repeated .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteAck acks = 1;
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAckOrBuilder getAcksOrBuilder(
          int index) {
        return acks_.get(index);
      }

      public static final int PARTITION_ID_FIELD_NUMBER = 2;
      private long partitionId_ = 0L;
      /**
       * 
       * Assigned partition for all client messages inside this batch.
       * This actual partition may differ from that returned in InitResponse
       * or other WriteResponses in this write session.
       * 
       *
       * int64 partition_id = 2;
       * @return The partitionId.
       */
      @java.lang.Override
      public long getPartitionId() {
        return partitionId_;
      }

      public static final int WRITE_STATISTICS_FIELD_NUMBER = 3;
      private tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteStatistics writeStatistics_;
      /**
       * 
       * Write statistics for this sequence of client messages.
       * 
       *
       * .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteStatistics write_statistics = 3;
       * @return Whether the writeStatistics field is set.
       */
      @java.lang.Override
      public boolean hasWriteStatistics() {
        return ((bitField0_ & 0x00000001) != 0);
      }
      /**
       * 
       * Write statistics for this sequence of client messages.
       * 
       *
       * .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteStatistics write_statistics = 3;
       * @return The writeStatistics.
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteStatistics getWriteStatistics() {
        return writeStatistics_ == null ? tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteStatistics.getDefaultInstance() : writeStatistics_;
      }
      /**
       * 
       * Write statistics for this sequence of client messages.
       * 
       *
       * .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteStatistics write_statistics = 3;
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteStatisticsOrBuilder getWriteStatisticsOrBuilder() {
        return writeStatistics_ == null ? tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteStatistics.getDefaultInstance() : writeStatistics_;
      }

      private byte memoizedIsInitialized = -1;
      @java.lang.Override
      public final boolean isInitialized() {
        byte isInitialized = memoizedIsInitialized;
        if (isInitialized == 1) return true;
        if (isInitialized == 0) return false;

        memoizedIsInitialized = 1;
        return true;
      }

      @java.lang.Override
      public void writeTo(com.google.protobuf.CodedOutputStream output)
                          throws java.io.IOException {
        for (int i = 0; i < acks_.size(); i++) {
          output.writeMessage(1, acks_.get(i));
        }
        if (partitionId_ != 0L) {
          output.writeInt64(2, partitionId_);
        }
        if (((bitField0_ & 0x00000001) != 0)) {
          output.writeMessage(3, getWriteStatistics());
        }
        getUnknownFields().writeTo(output);
      }

      @java.lang.Override
      public int getSerializedSize() {
        int size = memoizedSize;
        if (size != -1) return size;

        size = 0;
        for (int i = 0; i < acks_.size(); i++) {
          size += com.google.protobuf.CodedOutputStream
            .computeMessageSize(1, acks_.get(i));
        }
        if (partitionId_ != 0L) {
          size += com.google.protobuf.CodedOutputStream
            .computeInt64Size(2, partitionId_);
        }
        if (((bitField0_ & 0x00000001) != 0)) {
          size += com.google.protobuf.CodedOutputStream
            .computeMessageSize(3, getWriteStatistics());
        }
        size += getUnknownFields().getSerializedSize();
        memoizedSize = size;
        return size;
      }

      @java.lang.Override
      public boolean equals(final java.lang.Object obj) {
        if (obj == this) {
         return true;
        }
        if (!(obj instanceof tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse)) {
          return super.equals(obj);
        }
        tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse other = (tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse) obj;

        if (!getAcksList()
            .equals(other.getAcksList())) return false;
        if (getPartitionId()
            != other.getPartitionId()) return false;
        if (hasWriteStatistics() != other.hasWriteStatistics()) return false;
        if (hasWriteStatistics()) {
          if (!getWriteStatistics()
              .equals(other.getWriteStatistics())) return false;
        }
        if (!getUnknownFields().equals(other.getUnknownFields())) return false;
        return true;
      }

      @java.lang.Override
      public int hashCode() {
        if (memoizedHashCode != 0) {
          return memoizedHashCode;
        }
        int hash = 41;
        hash = (19 * hash) + getDescriptor().hashCode();
        if (getAcksCount() > 0) {
          hash = (37 * hash) + ACKS_FIELD_NUMBER;
          hash = (53 * hash) + getAcksList().hashCode();
        }
        hash = (37 * hash) + PARTITION_ID_FIELD_NUMBER;
        hash = (53 * hash) + com.google.protobuf.Internal.hashLong(
            getPartitionId());
        if (hasWriteStatistics()) {
          hash = (37 * hash) + WRITE_STATISTICS_FIELD_NUMBER;
          hash = (53 * hash) + getWriteStatistics().hashCode();
        }
        hash = (29 * hash) + getUnknownFields().hashCode();
        memoizedHashCode = hash;
        return hash;
      }

      public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse parseFrom(
          java.nio.ByteBuffer data)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse parseFrom(
          java.nio.ByteBuffer data,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data, extensionRegistry);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse parseFrom(
          com.google.protobuf.ByteString data)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse parseFrom(
          com.google.protobuf.ByteString data,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data, extensionRegistry);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse parseFrom(byte[] data)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse parseFrom(
          byte[] data,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data, extensionRegistry);
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      public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse parseFrom(java.io.InputStream input)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseWithIOException(PARSER, input);
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      public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse parseFrom(
          java.io.InputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseWithIOException(PARSER, input, extensionRegistry);
      }

      public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse parseDelimitedFrom(java.io.InputStream input)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseDelimitedWithIOException(PARSER, input);
      }

      public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse parseDelimitedFrom(
          java.io.InputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
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      public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse parseFrom(
          com.google.protobuf.CodedInputStream input)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseWithIOException(PARSER, input);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse parseFrom(
          com.google.protobuf.CodedInputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseWithIOException(PARSER, input, extensionRegistry);
      }

      @java.lang.Override
      public Builder newBuilderForType() { return newBuilder(); }
      public static Builder newBuilder() {
        return DEFAULT_INSTANCE.toBuilder();
      }
      public static Builder newBuilder(tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse prototype) {
        return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
      }
      @java.lang.Override
      public Builder toBuilder() {
        return this == DEFAULT_INSTANCE
            ? new Builder() : new Builder().mergeFrom(this);
      }

      @java.lang.Override
      protected Builder newBuilderForType(
          com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
        Builder builder = new Builder(parent);
        return builder;
      }
      /**
       * 
       * Message that represents acknowledgment for sequence of client messages.
       * This sequence is persisted together so write statistics is for messages batch.
       * 
       *
       * Protobuf type {@code Ydb.Topic.StreamWriteMessage.WriteResponse}
       */
      public static final class Builder extends
          com.google.protobuf.GeneratedMessageV3.Builder implements
          // @@protoc_insertion_point(builder_implements:Ydb.Topic.StreamWriteMessage.WriteResponse)
          tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponseOrBuilder {
        public static final com.google.protobuf.Descriptors.Descriptor
            getDescriptor() {
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        private void maybeForceBuilderInitialization() {
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          if (acksBuilder_ == null) {
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            throw newUninitializedMessageException(result);
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        @java.lang.Override
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          tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse result = new tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse(this);
          buildPartialRepeatedFields(result);
          if (bitField0_ != 0) { buildPartial0(result); }
          onBuilt();
          return result;
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        private void buildPartialRepeatedFields(tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse result) {
          if (acksBuilder_ == null) {
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              acks_ = java.util.Collections.unmodifiableList(acks_);
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        private void buildPartial0(tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse result) {
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            return mergeFrom((tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse)other);
          } else {
            super.mergeFrom(other);
            return this;
          }
        }

        public Builder mergeFrom(tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse other) {
          if (other == tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.getDefaultInstance()) return this;
          if (acksBuilder_ == null) {
            if (!other.acks_.isEmpty()) {
              if (acks_.isEmpty()) {
                acks_ = other.acks_;
                bitField0_ = (bitField0_ & ~0x00000001);
              } else {
                ensureAcksIsMutable();
                acks_.addAll(other.acks_);
              }
              onChanged();
            }
          } else {
            if (!other.acks_.isEmpty()) {
              if (acksBuilder_.isEmpty()) {
                acksBuilder_.dispose();
                acksBuilder_ = null;
                acks_ = other.acks_;
                bitField0_ = (bitField0_ & ~0x00000001);
                acksBuilder_ = 
                  com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders ?
                     getAcksFieldBuilder() : null;
              } else {
                acksBuilder_.addAllMessages(other.acks_);
              }
            }
          }
          if (other.getPartitionId() != 0L) {
            setPartitionId(other.getPartitionId());
          }
          if (other.hasWriteStatistics()) {
            mergeWriteStatistics(other.getWriteStatistics());
          }
          this.mergeUnknownFields(other.getUnknownFields());
          onChanged();
          return this;
        }

        @java.lang.Override
        public final boolean isInitialized() {
          return true;
        }

        @java.lang.Override
        public Builder mergeFrom(
            com.google.protobuf.CodedInputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws java.io.IOException {
          if (extensionRegistry == null) {
            throw new java.lang.NullPointerException();
          }
          try {
            boolean done = false;
            while (!done) {
              int tag = input.readTag();
              switch (tag) {
                case 0:
                  done = true;
                  break;
                case 10: {
                  tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck m =
                      input.readMessage(
                          tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.parser(),
                          extensionRegistry);
                  if (acksBuilder_ == null) {
                    ensureAcksIsMutable();
                    acks_.add(m);
                  } else {
                    acksBuilder_.addMessage(m);
                  }
                  break;
                } // case 10
                case 16: {
                  partitionId_ = input.readInt64();
                  bitField0_ |= 0x00000002;
                  break;
                } // case 16
                case 26: {
                  input.readMessage(
                      getWriteStatisticsFieldBuilder().getBuilder(),
                      extensionRegistry);
                  bitField0_ |= 0x00000004;
                  break;
                } // case 26
                default: {
                  if (!super.parseUnknownField(input, extensionRegistry, tag)) {
                    done = true; // was an endgroup tag
                  }
                  break;
                } // default:
              } // switch (tag)
            } // while (!done)
          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
            throw e.unwrapIOException();
          } finally {
            onChanged();
          } // finally
          return this;
        }
        private int bitField0_;

        private java.util.List acks_ =
          java.util.Collections.emptyList();
        private void ensureAcksIsMutable() {
          if (!((bitField0_ & 0x00000001) != 0)) {
            acks_ = new java.util.ArrayList(acks_);
            bitField0_ |= 0x00000001;
           }
        }

        private com.google.protobuf.RepeatedFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.Builder, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAckOrBuilder> acksBuilder_;

        /**
         * 
         * Number of acks is equal to number of messages in the corresponding WriteRequests.
         * 
         *
         * repeated .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteAck acks = 1;
         */
        public java.util.List getAcksList() {
          if (acksBuilder_ == null) {
            return java.util.Collections.unmodifiableList(acks_);
          } else {
            return acksBuilder_.getMessageList();
          }
        }
        /**
         * 
         * Number of acks is equal to number of messages in the corresponding WriteRequests.
         * 
         *
         * repeated .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteAck acks = 1;
         */
        public int getAcksCount() {
          if (acksBuilder_ == null) {
            return acks_.size();
          } else {
            return acksBuilder_.getCount();
          }
        }
        /**
         * 
         * Number of acks is equal to number of messages in the corresponding WriteRequests.
         * 
         *
         * repeated .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteAck acks = 1;
         */
        public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck getAcks(int index) {
          if (acksBuilder_ == null) {
            return acks_.get(index);
          } else {
            return acksBuilder_.getMessage(index);
          }
        }
        /**
         * 
         * Number of acks is equal to number of messages in the corresponding WriteRequests.
         * 
         *
         * repeated .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteAck acks = 1;
         */
        public Builder setAcks(
            int index, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck value) {
          if (acksBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            ensureAcksIsMutable();
            acks_.set(index, value);
            onChanged();
          } else {
            acksBuilder_.setMessage(index, value);
          }
          return this;
        }
        /**
         * 
         * Number of acks is equal to number of messages in the corresponding WriteRequests.
         * 
         *
         * repeated .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteAck acks = 1;
         */
        public Builder setAcks(
            int index, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.Builder builderForValue) {
          if (acksBuilder_ == null) {
            ensureAcksIsMutable();
            acks_.set(index, builderForValue.build());
            onChanged();
          } else {
            acksBuilder_.setMessage(index, builderForValue.build());
          }
          return this;
        }
        /**
         * 
         * Number of acks is equal to number of messages in the corresponding WriteRequests.
         * 
         *
         * repeated .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteAck acks = 1;
         */
        public Builder addAcks(tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck value) {
          if (acksBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            ensureAcksIsMutable();
            acks_.add(value);
            onChanged();
          } else {
            acksBuilder_.addMessage(value);
          }
          return this;
        }
        /**
         * 
         * Number of acks is equal to number of messages in the corresponding WriteRequests.
         * 
         *
         * repeated .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteAck acks = 1;
         */
        public Builder addAcks(
            int index, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck value) {
          if (acksBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            ensureAcksIsMutable();
            acks_.add(index, value);
            onChanged();
          } else {
            acksBuilder_.addMessage(index, value);
          }
          return this;
        }
        /**
         * 
         * Number of acks is equal to number of messages in the corresponding WriteRequests.
         * 
         *
         * repeated .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteAck acks = 1;
         */
        public Builder addAcks(
            tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.Builder builderForValue) {
          if (acksBuilder_ == null) {
            ensureAcksIsMutable();
            acks_.add(builderForValue.build());
            onChanged();
          } else {
            acksBuilder_.addMessage(builderForValue.build());
          }
          return this;
        }
        /**
         * 
         * Number of acks is equal to number of messages in the corresponding WriteRequests.
         * 
         *
         * repeated .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteAck acks = 1;
         */
        public Builder addAcks(
            int index, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.Builder builderForValue) {
          if (acksBuilder_ == null) {
            ensureAcksIsMutable();
            acks_.add(index, builderForValue.build());
            onChanged();
          } else {
            acksBuilder_.addMessage(index, builderForValue.build());
          }
          return this;
        }
        /**
         * 
         * Number of acks is equal to number of messages in the corresponding WriteRequests.
         * 
         *
         * repeated .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteAck acks = 1;
         */
        public Builder addAllAcks(
            java.lang.Iterable values) {
          if (acksBuilder_ == null) {
            ensureAcksIsMutable();
            com.google.protobuf.AbstractMessageLite.Builder.addAll(
                values, acks_);
            onChanged();
          } else {
            acksBuilder_.addAllMessages(values);
          }
          return this;
        }
        /**
         * 
         * Number of acks is equal to number of messages in the corresponding WriteRequests.
         * 
         *
         * repeated .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteAck acks = 1;
         */
        public Builder clearAcks() {
          if (acksBuilder_ == null) {
            acks_ = java.util.Collections.emptyList();
            bitField0_ = (bitField0_ & ~0x00000001);
            onChanged();
          } else {
            acksBuilder_.clear();
          }
          return this;
        }
        /**
         * 
         * Number of acks is equal to number of messages in the corresponding WriteRequests.
         * 
         *
         * repeated .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteAck acks = 1;
         */
        public Builder removeAcks(int index) {
          if (acksBuilder_ == null) {
            ensureAcksIsMutable();
            acks_.remove(index);
            onChanged();
          } else {
            acksBuilder_.remove(index);
          }
          return this;
        }
        /**
         * 
         * Number of acks is equal to number of messages in the corresponding WriteRequests.
         * 
         *
         * repeated .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteAck acks = 1;
         */
        public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.Builder getAcksBuilder(
            int index) {
          return getAcksFieldBuilder().getBuilder(index);
        }
        /**
         * 
         * Number of acks is equal to number of messages in the corresponding WriteRequests.
         * 
         *
         * repeated .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteAck acks = 1;
         */
        public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAckOrBuilder getAcksOrBuilder(
            int index) {
          if (acksBuilder_ == null) {
            return acks_.get(index);  } else {
            return acksBuilder_.getMessageOrBuilder(index);
          }
        }
        /**
         * 
         * Number of acks is equal to number of messages in the corresponding WriteRequests.
         * 
         *
         * repeated .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteAck acks = 1;
         */
        public java.util.List 
             getAcksOrBuilderList() {
          if (acksBuilder_ != null) {
            return acksBuilder_.getMessageOrBuilderList();
          } else {
            return java.util.Collections.unmodifiableList(acks_);
          }
        }
        /**
         * 
         * Number of acks is equal to number of messages in the corresponding WriteRequests.
         * 
         *
         * repeated .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteAck acks = 1;
         */
        public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.Builder addAcksBuilder() {
          return getAcksFieldBuilder().addBuilder(
              tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.getDefaultInstance());
        }
        /**
         * 
         * Number of acks is equal to number of messages in the corresponding WriteRequests.
         * 
         *
         * repeated .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteAck acks = 1;
         */
        public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.Builder addAcksBuilder(
            int index) {
          return getAcksFieldBuilder().addBuilder(
              index, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.getDefaultInstance());
        }
        /**
         * 
         * Number of acks is equal to number of messages in the corresponding WriteRequests.
         * 
         *
         * repeated .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteAck acks = 1;
         */
        public java.util.List 
             getAcksBuilderList() {
          return getAcksFieldBuilder().getBuilderList();
        }
        private com.google.protobuf.RepeatedFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.Builder, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAckOrBuilder> 
            getAcksFieldBuilder() {
          if (acksBuilder_ == null) {
            acksBuilder_ = new com.google.protobuf.RepeatedFieldBuilderV3<
                tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAck.Builder, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteAckOrBuilder>(
                    acks_,
                    ((bitField0_ & 0x00000001) != 0),
                    getParentForChildren(),
                    isClean());
            acks_ = null;
          }
          return acksBuilder_;
        }

        private long partitionId_ ;
        /**
         * 
         * Assigned partition for all client messages inside this batch.
         * This actual partition may differ from that returned in InitResponse
         * or other WriteResponses in this write session.
         * 
         *
         * int64 partition_id = 2;
         * @return The partitionId.
         */
        @java.lang.Override
        public long getPartitionId() {
          return partitionId_;
        }
        /**
         * 
         * Assigned partition for all client messages inside this batch.
         * This actual partition may differ from that returned in InitResponse
         * or other WriteResponses in this write session.
         * 
         *
         * int64 partition_id = 2;
         * @param value The partitionId to set.
         * @return This builder for chaining.
         */
        public Builder setPartitionId(long value) {

          partitionId_ = value;
          bitField0_ |= 0x00000002;
          onChanged();
          return this;
        }
        /**
         * 
         * Assigned partition for all client messages inside this batch.
         * This actual partition may differ from that returned in InitResponse
         * or other WriteResponses in this write session.
         * 
         *
         * int64 partition_id = 2;
         * @return This builder for chaining.
         */
        public Builder clearPartitionId() {
          bitField0_ = (bitField0_ & ~0x00000002);
          partitionId_ = 0L;
          onChanged();
          return this;
        }

        private tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteStatistics writeStatistics_;
        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteStatistics, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteStatistics.Builder, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteStatisticsOrBuilder> writeStatisticsBuilder_;
        /**
         * 
         * Write statistics for this sequence of client messages.
         * 
         *
         * .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteStatistics write_statistics = 3;
         * @return Whether the writeStatistics field is set.
         */
        public boolean hasWriteStatistics() {
          return ((bitField0_ & 0x00000004) != 0);
        }
        /**
         * 
         * Write statistics for this sequence of client messages.
         * 
         *
         * .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteStatistics write_statistics = 3;
         * @return The writeStatistics.
         */
        public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteStatistics getWriteStatistics() {
          if (writeStatisticsBuilder_ == null) {
            return writeStatistics_ == null ? tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteStatistics.getDefaultInstance() : writeStatistics_;
          } else {
            return writeStatisticsBuilder_.getMessage();
          }
        }
        /**
         * 
         * Write statistics for this sequence of client messages.
         * 
         *
         * .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteStatistics write_statistics = 3;
         */
        public Builder setWriteStatistics(tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteStatistics value) {
          if (writeStatisticsBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            writeStatistics_ = value;
          } else {
            writeStatisticsBuilder_.setMessage(value);
          }
          bitField0_ |= 0x00000004;
          onChanged();
          return this;
        }
        /**
         * 
         * Write statistics for this sequence of client messages.
         * 
         *
         * .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteStatistics write_statistics = 3;
         */
        public Builder setWriteStatistics(
            tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteStatistics.Builder builderForValue) {
          if (writeStatisticsBuilder_ == null) {
            writeStatistics_ = builderForValue.build();
          } else {
            writeStatisticsBuilder_.setMessage(builderForValue.build());
          }
          bitField0_ |= 0x00000004;
          onChanged();
          return this;
        }
        /**
         * 
         * Write statistics for this sequence of client messages.
         * 
         *
         * .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteStatistics write_statistics = 3;
         */
        public Builder mergeWriteStatistics(tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteStatistics value) {
          if (writeStatisticsBuilder_ == null) {
            if (((bitField0_ & 0x00000004) != 0) &&
              writeStatistics_ != null &&
              writeStatistics_ != tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteStatistics.getDefaultInstance()) {
              getWriteStatisticsBuilder().mergeFrom(value);
            } else {
              writeStatistics_ = value;
            }
          } else {
            writeStatisticsBuilder_.mergeFrom(value);
          }
          if (writeStatistics_ != null) {
            bitField0_ |= 0x00000004;
            onChanged();
          }
          return this;
        }
        /**
         * 
         * Write statistics for this sequence of client messages.
         * 
         *
         * .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteStatistics write_statistics = 3;
         */
        public Builder clearWriteStatistics() {
          bitField0_ = (bitField0_ & ~0x00000004);
          writeStatistics_ = null;
          if (writeStatisticsBuilder_ != null) {
            writeStatisticsBuilder_.dispose();
            writeStatisticsBuilder_ = null;
          }
          onChanged();
          return this;
        }
        /**
         * 
         * Write statistics for this sequence of client messages.
         * 
         *
         * .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteStatistics write_statistics = 3;
         */
        public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteStatistics.Builder getWriteStatisticsBuilder() {
          bitField0_ |= 0x00000004;
          onChanged();
          return getWriteStatisticsFieldBuilder().getBuilder();
        }
        /**
         * 
         * Write statistics for this sequence of client messages.
         * 
         *
         * .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteStatistics write_statistics = 3;
         */
        public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteStatisticsOrBuilder getWriteStatisticsOrBuilder() {
          if (writeStatisticsBuilder_ != null) {
            return writeStatisticsBuilder_.getMessageOrBuilder();
          } else {
            return writeStatistics_ == null ?
                tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteStatistics.getDefaultInstance() : writeStatistics_;
          }
        }
        /**
         * 
         * Write statistics for this sequence of client messages.
         * 
         *
         * .Ydb.Topic.StreamWriteMessage.WriteResponse.WriteStatistics write_statistics = 3;
         */
        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteStatistics, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteStatistics.Builder, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteStatisticsOrBuilder> 
            getWriteStatisticsFieldBuilder() {
          if (writeStatisticsBuilder_ == null) {
            writeStatisticsBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
                tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteStatistics, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteStatistics.Builder, tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse.WriteStatisticsOrBuilder>(
                    getWriteStatistics(),
                    getParentForChildren(),
                    isClean());
            writeStatistics_ = null;
          }
          return writeStatisticsBuilder_;
        }
        @java.lang.Override
        public final Builder setUnknownFields(
            final com.google.protobuf.UnknownFieldSet unknownFields) {
          return super.setUnknownFields(unknownFields);
        }

        @java.lang.Override
        public final Builder mergeUnknownFields(
            final com.google.protobuf.UnknownFieldSet unknownFields) {
          return super.mergeUnknownFields(unknownFields);
        }


        // @@protoc_insertion_point(builder_scope:Ydb.Topic.StreamWriteMessage.WriteResponse)
      }

      // @@protoc_insertion_point(class_scope:Ydb.Topic.StreamWriteMessage.WriteResponse)
      private static final tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse DEFAULT_INSTANCE;
      static {
        DEFAULT_INSTANCE = new tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse();
      }

      public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse getDefaultInstance() {
        return DEFAULT_INSTANCE;
      }

      private static final com.google.protobuf.Parser
          PARSER = new com.google.protobuf.AbstractParser() {
        @java.lang.Override
        public WriteResponse parsePartialFrom(
            com.google.protobuf.CodedInputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws com.google.protobuf.InvalidProtocolBufferException {
          Builder builder = newBuilder();
          try {
            builder.mergeFrom(input, extensionRegistry);
          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
            throw e.setUnfinishedMessage(builder.buildPartial());
          } catch (com.google.protobuf.UninitializedMessageException e) {
            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
          } catch (java.io.IOException e) {
            throw new com.google.protobuf.InvalidProtocolBufferException(e)
                .setUnfinishedMessage(builder.buildPartial());
          }
          return builder.buildPartial();
        }
      };

      public static com.google.protobuf.Parser parser() {
        return PARSER;
      }

      @java.lang.Override
      public com.google.protobuf.Parser getParserForType() {
        return PARSER;
      }

      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamWriteMessage.WriteResponse getDefaultInstanceForType() {
        return DEFAULT_INSTANCE;
      }

    }

    private byte memoizedIsInitialized = -1;
    @java.lang.Override
    public final boolean isInitialized() {
      byte isInitialized = memoizedIsInitialized;
      if (isInitialized == 1) return true;
      if (isInitialized == 0) return false;

      memoizedIsInitialized = 1;
      return true;
    }

    @java.lang.Override
    public void writeTo(com.google.protobuf.CodedOutputStream output)
                        throws java.io.IOException {
      getUnknownFields().writeTo(output);
    }

    @java.lang.Override
    public int getSerializedSize() {
      int size = memoizedSize;
      if (size != -1) return size;

      size = 0;
      size += getUnknownFields().getSerializedSize();
      memoizedSize = size;
      return size;
    }

    @java.lang.Override
    public boolean equals(final java.lang.Object obj) {
      if (obj == this) {
       return true;
      }
      if (!(obj instanceof tech.ydb.proto.topic.YdbTopic.StreamWriteMessage)) {
        return super.equals(obj);
      }
      tech.ydb.proto.topic.YdbTopic.StreamWriteMessage other = (tech.ydb.proto.topic.YdbTopic.StreamWriteMessage) obj;

      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
      return true;
    }

    @java.lang.Override
    public int hashCode() {
      if (memoizedHashCode != 0) {
        return memoizedHashCode;
      }
      int hash = 41;
      hash = (19 * hash) + getDescriptor().hashCode();
      hash = (29 * hash) + getUnknownFields().hashCode();
      memoizedHashCode = hash;
      return hash;
    }

    public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage parseFrom(
        java.nio.ByteBuffer data)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data);
    }
    public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage parseFrom(
        java.nio.ByteBuffer data,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data, extensionRegistry);
    }
    public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage parseFrom(
        com.google.protobuf.ByteString data)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data);
    }
    public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage parseFrom(
        com.google.protobuf.ByteString data,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data, extensionRegistry);
    }
    public static tech.ydb.proto.topic.YdbTopic.StreamWriteMessage parseFrom(byte[] data)
        throws com.google.protobuf.InvalidProtocolBufferException {
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          }
          if (((from_bitField0_ & 0x00000004) != 0)) {
            result.partitionId_ = partitionId_;
          }
        }

        @java.lang.Override
        public Builder clone() {
          return super.clone();
        }
        @java.lang.Override
        public Builder setField(
            com.google.protobuf.Descriptors.FieldDescriptor field,
            java.lang.Object value) {
          return super.setField(field, value);
        }
        @java.lang.Override
        public Builder clearField(
            com.google.protobuf.Descriptors.FieldDescriptor field) {
          return super.clearField(field);
        }
        @java.lang.Override
        public Builder clearOneof(
            com.google.protobuf.Descriptors.OneofDescriptor oneof) {
          return super.clearOneof(oneof);
        }
        @java.lang.Override
        public Builder setRepeatedField(
            com.google.protobuf.Descriptors.FieldDescriptor field,
            int index, java.lang.Object value) {
          return super.setRepeatedField(field, index, value);
        }
        @java.lang.Override
        public Builder addRepeatedField(
            com.google.protobuf.Descriptors.FieldDescriptor field,
            java.lang.Object value) {
          return super.addRepeatedField(field, value);
        }
        @java.lang.Override
        public Builder mergeFrom(com.google.protobuf.Message other) {
          if (other instanceof tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSession) {
            return mergeFrom((tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSession)other);
          } else {
            super.mergeFrom(other);
            return this;
          }
        }

        public Builder mergeFrom(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSession other) {
          if (other == tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSession.getDefaultInstance()) return this;
          if (other.getPartitionSessionId() != 0L) {
            setPartitionSessionId(other.getPartitionSessionId());
          }
          if (!other.getPath().isEmpty()) {
            path_ = other.path_;
            bitField0_ |= 0x00000002;
            onChanged();
          }
          if (other.getPartitionId() != 0L) {
            setPartitionId(other.getPartitionId());
          }
          this.mergeUnknownFields(other.getUnknownFields());
          onChanged();
          return this;
        }

        @java.lang.Override
        public final boolean isInitialized() {
          return true;
        }

        @java.lang.Override
        public Builder mergeFrom(
            com.google.protobuf.CodedInputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws java.io.IOException {
          if (extensionRegistry == null) {
            throw new java.lang.NullPointerException();
          }
          try {
            boolean done = false;
            while (!done) {
              int tag = input.readTag();
              switch (tag) {
                case 0:
                  done = true;
                  break;
                case 8: {
                  partitionSessionId_ = input.readInt64();
                  bitField0_ |= 0x00000001;
                  break;
                } // case 8
                case 18: {
                  path_ = input.readStringRequireUtf8();
                  bitField0_ |= 0x00000002;
                  break;
                } // case 18
                case 24: {
                  partitionId_ = input.readInt64();
                  bitField0_ |= 0x00000004;
                  break;
                } // case 24
                default: {
                  if (!super.parseUnknownField(input, extensionRegistry, tag)) {
                    done = true; // was an endgroup tag
                  }
                  break;
                } // default:
              } // switch (tag)
            } // while (!done)
          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
            throw e.unwrapIOException();
          } finally {
            onChanged();
          } // finally
          return this;
        }
        private int bitField0_;

        private long partitionSessionId_ ;
        /**
         * 
         * Identifier of partition session. Unique inside one RPC call.
         * 
         *
         * int64 partition_session_id = 1;
         * @return The partitionSessionId.
         */
        @java.lang.Override
        public long getPartitionSessionId() {
          return partitionSessionId_;
        }
        /**
         * 
         * Identifier of partition session. Unique inside one RPC call.
         * 
         *
         * int64 partition_session_id = 1;
         * @param value The partitionSessionId to set.
         * @return This builder for chaining.
         */
        public Builder setPartitionSessionId(long value) {

          partitionSessionId_ = value;
          bitField0_ |= 0x00000001;
          onChanged();
          return this;
        }
        /**
         * 
         * Identifier of partition session. Unique inside one RPC call.
         * 
         *
         * int64 partition_session_id = 1;
         * @return This builder for chaining.
         */
        public Builder clearPartitionSessionId() {
          bitField0_ = (bitField0_ & ~0x00000001);
          partitionSessionId_ = 0L;
          onChanged();
          return this;
        }

        private java.lang.Object path_ = "";
        /**
         * 
         * Topic path of partition.
         * 
         *
         * string path = 2;
         * @return The path.
         */
        public java.lang.String getPath() {
          java.lang.Object ref = path_;
          if (!(ref instanceof java.lang.String)) {
            com.google.protobuf.ByteString bs =
                (com.google.protobuf.ByteString) ref;
            java.lang.String s = bs.toStringUtf8();
            path_ = s;
            return s;
          } else {
            return (java.lang.String) ref;
          }
        }
        /**
         * 
         * Topic path of partition.
         * 
         *
         * string path = 2;
         * @return The bytes for path.
         */
        public com.google.protobuf.ByteString
            getPathBytes() {
          java.lang.Object ref = path_;
          if (ref instanceof String) {
            com.google.protobuf.ByteString b = 
                com.google.protobuf.ByteString.copyFromUtf8(
                    (java.lang.String) ref);
            path_ = b;
            return b;
          } else {
            return (com.google.protobuf.ByteString) ref;
          }
        }
        /**
         * 
         * Topic path of partition.
         * 
         *
         * string path = 2;
         * @param value The path to set.
         * @return This builder for chaining.
         */
        public Builder setPath(
            java.lang.String value) {
          if (value == null) { throw new NullPointerException(); }
          path_ = value;
          bitField0_ |= 0x00000002;
          onChanged();
          return this;
        }
        /**
         * 
         * Topic path of partition.
         * 
         *
         * string path = 2;
         * @return This builder for chaining.
         */
        public Builder clearPath() {
          path_ = getDefaultInstance().getPath();
          bitField0_ = (bitField0_ & ~0x00000002);
          onChanged();
          return this;
        }
        /**
         * 
         * Topic path of partition.
         * 
         *
         * string path = 2;
         * @param value The bytes for path to set.
         * @return This builder for chaining.
         */
        public Builder setPathBytes(
            com.google.protobuf.ByteString value) {
          if (value == null) { throw new NullPointerException(); }
          checkByteStringIsUtf8(value);
          path_ = value;
          bitField0_ |= 0x00000002;
          onChanged();
          return this;
        }

        private long partitionId_ ;
        /**
         * 
         * Partition identifier.
         * 
         *
         * int64 partition_id = 3;
         * @return The partitionId.
         */
        @java.lang.Override
        public long getPartitionId() {
          return partitionId_;
        }
        /**
         * 
         * Partition identifier.
         * 
         *
         * int64 partition_id = 3;
         * @param value The partitionId to set.
         * @return This builder for chaining.
         */
        public Builder setPartitionId(long value) {

          partitionId_ = value;
          bitField0_ |= 0x00000004;
          onChanged();
          return this;
        }
        /**
         * 
         * Partition identifier.
         * 
         *
         * int64 partition_id = 3;
         * @return This builder for chaining.
         */
        public Builder clearPartitionId() {
          bitField0_ = (bitField0_ & ~0x00000004);
          partitionId_ = 0L;
          onChanged();
          return this;
        }
        @java.lang.Override
        public final Builder setUnknownFields(
            final com.google.protobuf.UnknownFieldSet unknownFields) {
          return super.setUnknownFields(unknownFields);
        }

        @java.lang.Override
        public final Builder mergeUnknownFields(
            final com.google.protobuf.UnknownFieldSet unknownFields) {
          return super.mergeUnknownFields(unknownFields);
        }


        // @@protoc_insertion_point(builder_scope:Ydb.Topic.StreamReadMessage.PartitionSession)
      }

      // @@protoc_insertion_point(class_scope:Ydb.Topic.StreamReadMessage.PartitionSession)
      private static final tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSession DEFAULT_INSTANCE;
      static {
        DEFAULT_INSTANCE = new tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSession();
      }

      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSession getDefaultInstance() {
        return DEFAULT_INSTANCE;
      }

      private static final com.google.protobuf.Parser
          PARSER = new com.google.protobuf.AbstractParser() {
        @java.lang.Override
        public PartitionSession parsePartialFrom(
            com.google.protobuf.CodedInputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws com.google.protobuf.InvalidProtocolBufferException {
          Builder builder = newBuilder();
          try {
            builder.mergeFrom(input, extensionRegistry);
          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
            throw e.setUnfinishedMessage(builder.buildPartial());
          } catch (com.google.protobuf.UninitializedMessageException e) {
            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
          } catch (java.io.IOException e) {
            throw new com.google.protobuf.InvalidProtocolBufferException(e)
                .setUnfinishedMessage(builder.buildPartial());
          }
          return builder.buildPartial();
        }
      };

      public static com.google.protobuf.Parser parser() {
        return PARSER;
      }

      @java.lang.Override
      public com.google.protobuf.Parser getParserForType() {
        return PARSER;
      }

      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSession getDefaultInstanceForType() {
        return DEFAULT_INSTANCE;
      }

    }

    public interface FromClientOrBuilder extends
        // @@protoc_insertion_point(interface_extends:Ydb.Topic.StreamReadMessage.FromClient)
        com.google.protobuf.MessageOrBuilder {

      /**
       * 
       * Client requests.
       * 
       *
       * .Ydb.Topic.StreamReadMessage.InitRequest init_request = 1;
       * @return Whether the initRequest field is set.
       */
      boolean hasInitRequest();
      /**
       * 
       * Client requests.
       * 
       *
       * .Ydb.Topic.StreamReadMessage.InitRequest init_request = 1;
       * @return The initRequest.
       */
      tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest getInitRequest();
      /**
       * 
       * Client requests.
       * 
       *
       * .Ydb.Topic.StreamReadMessage.InitRequest init_request = 1;
       */
      tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequestOrBuilder getInitRequestOrBuilder();

      /**
       * .Ydb.Topic.StreamReadMessage.ReadRequest read_request = 2;
       * @return Whether the readRequest field is set.
       */
      boolean hasReadRequest();
      /**
       * .Ydb.Topic.StreamReadMessage.ReadRequest read_request = 2;
       * @return The readRequest.
       */
      tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadRequest getReadRequest();
      /**
       * .Ydb.Topic.StreamReadMessage.ReadRequest read_request = 2;
       */
      tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadRequestOrBuilder getReadRequestOrBuilder();

      /**
       * .Ydb.Topic.StreamReadMessage.CommitOffsetRequest commit_offset_request = 3;
       * @return Whether the commitOffsetRequest field is set.
       */
      boolean hasCommitOffsetRequest();
      /**
       * .Ydb.Topic.StreamReadMessage.CommitOffsetRequest commit_offset_request = 3;
       * @return The commitOffsetRequest.
       */
      tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest getCommitOffsetRequest();
      /**
       * .Ydb.Topic.StreamReadMessage.CommitOffsetRequest commit_offset_request = 3;
       */
      tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequestOrBuilder getCommitOffsetRequestOrBuilder();

      /**
       * .Ydb.Topic.StreamReadMessage.PartitionSessionStatusRequest partition_session_status_request = 4;
       * @return Whether the partitionSessionStatusRequest field is set.
       */
      boolean hasPartitionSessionStatusRequest();
      /**
       * .Ydb.Topic.StreamReadMessage.PartitionSessionStatusRequest partition_session_status_request = 4;
       * @return The partitionSessionStatusRequest.
       */
      tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusRequest getPartitionSessionStatusRequest();
      /**
       * .Ydb.Topic.StreamReadMessage.PartitionSessionStatusRequest partition_session_status_request = 4;
       */
      tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusRequestOrBuilder getPartitionSessionStatusRequestOrBuilder();

      /**
       * .Ydb.Topic.UpdateTokenRequest update_token_request = 5;
       * @return Whether the updateTokenRequest field is set.
       */
      boolean hasUpdateTokenRequest();
      /**
       * .Ydb.Topic.UpdateTokenRequest update_token_request = 5;
       * @return The updateTokenRequest.
       */
      tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest getUpdateTokenRequest();
      /**
       * .Ydb.Topic.UpdateTokenRequest update_token_request = 5;
       */
      tech.ydb.proto.topic.YdbTopic.UpdateTokenRequestOrBuilder getUpdateTokenRequestOrBuilder();

      /**
       * .Ydb.Topic.StreamReadMessage.DirectReadAck direct_read_ack = 8;
       * @return Whether the directReadAck field is set.
       */
      boolean hasDirectReadAck();
      /**
       * .Ydb.Topic.StreamReadMessage.DirectReadAck direct_read_ack = 8;
       * @return The directReadAck.
       */
      tech.ydb.proto.topic.YdbTopic.StreamReadMessage.DirectReadAck getDirectReadAck();
      /**
       * .Ydb.Topic.StreamReadMessage.DirectReadAck direct_read_ack = 8;
       */
      tech.ydb.proto.topic.YdbTopic.StreamReadMessage.DirectReadAckOrBuilder getDirectReadAckOrBuilder();

      /**
       * 
       * Responses to respective server commands.
       * 
       *
       * .Ydb.Topic.StreamReadMessage.StartPartitionSessionResponse start_partition_session_response = 6;
       * @return Whether the startPartitionSessionResponse field is set.
       */
      boolean hasStartPartitionSessionResponse();
      /**
       * 
       * Responses to respective server commands.
       * 
       *
       * .Ydb.Topic.StreamReadMessage.StartPartitionSessionResponse start_partition_session_response = 6;
       * @return The startPartitionSessionResponse.
       */
      tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionResponse getStartPartitionSessionResponse();
      /**
       * 
       * Responses to respective server commands.
       * 
       *
       * .Ydb.Topic.StreamReadMessage.StartPartitionSessionResponse start_partition_session_response = 6;
       */
      tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionResponseOrBuilder getStartPartitionSessionResponseOrBuilder();

      /**
       * .Ydb.Topic.StreamReadMessage.StopPartitionSessionResponse stop_partition_session_response = 7;
       * @return Whether the stopPartitionSessionResponse field is set.
       */
      boolean hasStopPartitionSessionResponse();
      /**
       * .Ydb.Topic.StreamReadMessage.StopPartitionSessionResponse stop_partition_session_response = 7;
       * @return The stopPartitionSessionResponse.
       */
      tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionResponse getStopPartitionSessionResponse();
      /**
       * .Ydb.Topic.StreamReadMessage.StopPartitionSessionResponse stop_partition_session_response = 7;
       */
      tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionResponseOrBuilder getStopPartitionSessionResponseOrBuilder();

      tech.ydb.proto.topic.YdbTopic.StreamReadMessage.FromClient.ClientMessageCase getClientMessageCase();
    }
    /**
     * 
     * Client-server message for read session. Contains one of:
     *     InitRequest - handshake request.
     *     ReadRequest - request for data.
     *     CommitOffsetRequest - request for commit of some read data.
     *     PartitionSessionStatusRequest - request for session status
     *     UpdateTokenRequest - request to update auth token
     *     DirectReadAck - client signals it has finished direct reading from the partition node.
     *
     *     StartPartitionSessionResponse - Response to StreamReadServerMessage.StartPartitionSessionRequest.
     *         Client signals it is ready to get data from partition.
     *     StopPartitionSessionResponse - Response to StreamReadServerMessage.StopPartitionSessionRequest.
     *         Client signals it has finished working with partition. Mandatory for graceful stop, optional otherwise.
     * 
     *
     * Protobuf type {@code Ydb.Topic.StreamReadMessage.FromClient}
     */
    public static final class FromClient extends
        com.google.protobuf.GeneratedMessageV3 implements
        // @@protoc_insertion_point(message_implements:Ydb.Topic.StreamReadMessage.FromClient)
        FromClientOrBuilder {
    private static final long serialVersionUID = 0L;
      // Use FromClient.newBuilder() to construct.
      private FromClient(com.google.protobuf.GeneratedMessageV3.Builder builder) {
        super(builder);
      }
      private FromClient() {
      }

      @java.lang.Override
      @SuppressWarnings({"unused"})
      protected java.lang.Object newInstance(
          UnusedPrivateParameter unused) {
        return new FromClient();
      }

      public static final com.google.protobuf.Descriptors.Descriptor
          getDescriptor() {
        return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamReadMessage_FromClient_descriptor;
      }

      @java.lang.Override
      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
          internalGetFieldAccessorTable() {
        return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamReadMessage_FromClient_fieldAccessorTable
            .ensureFieldAccessorsInitialized(
                tech.ydb.proto.topic.YdbTopic.StreamReadMessage.FromClient.class, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.FromClient.Builder.class);
      }

      private int clientMessageCase_ = 0;
      @SuppressWarnings("serial")
      private java.lang.Object clientMessage_;
      public enum ClientMessageCase
          implements com.google.protobuf.Internal.EnumLite,
              com.google.protobuf.AbstractMessage.InternalOneOfEnum {
        INIT_REQUEST(1),
        READ_REQUEST(2),
        COMMIT_OFFSET_REQUEST(3),
        PARTITION_SESSION_STATUS_REQUEST(4),
        UPDATE_TOKEN_REQUEST(5),
        DIRECT_READ_ACK(8),
        START_PARTITION_SESSION_RESPONSE(6),
        STOP_PARTITION_SESSION_RESPONSE(7),
        CLIENTMESSAGE_NOT_SET(0);
        private final int value;
        private ClientMessageCase(int value) {
          this.value = value;
        }
        /**
         * @param value The number of the enum to look for.
         * @return The enum associated with the given number.
         * @deprecated Use {@link #forNumber(int)} instead.
         */
        @java.lang.Deprecated
        public static ClientMessageCase valueOf(int value) {
          return forNumber(value);
        }

        public static ClientMessageCase forNumber(int value) {
          switch (value) {
            case 1: return INIT_REQUEST;
            case 2: return READ_REQUEST;
            case 3: return COMMIT_OFFSET_REQUEST;
            case 4: return PARTITION_SESSION_STATUS_REQUEST;
            case 5: return UPDATE_TOKEN_REQUEST;
            case 8: return DIRECT_READ_ACK;
            case 6: return START_PARTITION_SESSION_RESPONSE;
            case 7: return STOP_PARTITION_SESSION_RESPONSE;
            case 0: return CLIENTMESSAGE_NOT_SET;
            default: return null;
          }
        }
        public int getNumber() {
          return this.value;
        }
      };

      public ClientMessageCase
      getClientMessageCase() {
        return ClientMessageCase.forNumber(
            clientMessageCase_);
      }

      public static final int INIT_REQUEST_FIELD_NUMBER = 1;
      /**
       * 
       * Client requests.
       * 
       *
       * .Ydb.Topic.StreamReadMessage.InitRequest init_request = 1;
       * @return Whether the initRequest field is set.
       */
      @java.lang.Override
      public boolean hasInitRequest() {
        return clientMessageCase_ == 1;
      }
      /**
       * 
       * Client requests.
       * 
       *
       * .Ydb.Topic.StreamReadMessage.InitRequest init_request = 1;
       * @return The initRequest.
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest getInitRequest() {
        if (clientMessageCase_ == 1) {
           return (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest) clientMessage_;
        }
        return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest.getDefaultInstance();
      }
      /**
       * 
       * Client requests.
       * 
       *
       * .Ydb.Topic.StreamReadMessage.InitRequest init_request = 1;
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequestOrBuilder getInitRequestOrBuilder() {
        if (clientMessageCase_ == 1) {
           return (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest) clientMessage_;
        }
        return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest.getDefaultInstance();
      }

      public static final int READ_REQUEST_FIELD_NUMBER = 2;
      /**
       * .Ydb.Topic.StreamReadMessage.ReadRequest read_request = 2;
       * @return Whether the readRequest field is set.
       */
      @java.lang.Override
      public boolean hasReadRequest() {
        return clientMessageCase_ == 2;
      }
      /**
       * .Ydb.Topic.StreamReadMessage.ReadRequest read_request = 2;
       * @return The readRequest.
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadRequest getReadRequest() {
        if (clientMessageCase_ == 2) {
           return (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadRequest) clientMessage_;
        }
        return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadRequest.getDefaultInstance();
      }
      /**
       * .Ydb.Topic.StreamReadMessage.ReadRequest read_request = 2;
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadRequestOrBuilder getReadRequestOrBuilder() {
        if (clientMessageCase_ == 2) {
           return (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadRequest) clientMessage_;
        }
        return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadRequest.getDefaultInstance();
      }

      public static final int COMMIT_OFFSET_REQUEST_FIELD_NUMBER = 3;
      /**
       * .Ydb.Topic.StreamReadMessage.CommitOffsetRequest commit_offset_request = 3;
       * @return Whether the commitOffsetRequest field is set.
       */
      @java.lang.Override
      public boolean hasCommitOffsetRequest() {
        return clientMessageCase_ == 3;
      }
      /**
       * .Ydb.Topic.StreamReadMessage.CommitOffsetRequest commit_offset_request = 3;
       * @return The commitOffsetRequest.
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest getCommitOffsetRequest() {
        if (clientMessageCase_ == 3) {
           return (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest) clientMessage_;
        }
        return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.getDefaultInstance();
      }
      /**
       * .Ydb.Topic.StreamReadMessage.CommitOffsetRequest commit_offset_request = 3;
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequestOrBuilder getCommitOffsetRequestOrBuilder() {
        if (clientMessageCase_ == 3) {
           return (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest) clientMessage_;
        }
        return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.getDefaultInstance();
      }

      public static final int PARTITION_SESSION_STATUS_REQUEST_FIELD_NUMBER = 4;
      /**
       * .Ydb.Topic.StreamReadMessage.PartitionSessionStatusRequest partition_session_status_request = 4;
       * @return Whether the partitionSessionStatusRequest field is set.
       */
      @java.lang.Override
      public boolean hasPartitionSessionStatusRequest() {
        return clientMessageCase_ == 4;
      }
      /**
       * .Ydb.Topic.StreamReadMessage.PartitionSessionStatusRequest partition_session_status_request = 4;
       * @return The partitionSessionStatusRequest.
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusRequest getPartitionSessionStatusRequest() {
        if (clientMessageCase_ == 4) {
           return (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusRequest) clientMessage_;
        }
        return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusRequest.getDefaultInstance();
      }
      /**
       * .Ydb.Topic.StreamReadMessage.PartitionSessionStatusRequest partition_session_status_request = 4;
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusRequestOrBuilder getPartitionSessionStatusRequestOrBuilder() {
        if (clientMessageCase_ == 4) {
           return (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusRequest) clientMessage_;
        }
        return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusRequest.getDefaultInstance();
      }

      public static final int UPDATE_TOKEN_REQUEST_FIELD_NUMBER = 5;
      /**
       * .Ydb.Topic.UpdateTokenRequest update_token_request = 5;
       * @return Whether the updateTokenRequest field is set.
       */
      @java.lang.Override
      public boolean hasUpdateTokenRequest() {
        return clientMessageCase_ == 5;
      }
      /**
       * .Ydb.Topic.UpdateTokenRequest update_token_request = 5;
       * @return The updateTokenRequest.
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest getUpdateTokenRequest() {
        if (clientMessageCase_ == 5) {
           return (tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest) clientMessage_;
        }
        return tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest.getDefaultInstance();
      }
      /**
       * .Ydb.Topic.UpdateTokenRequest update_token_request = 5;
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.UpdateTokenRequestOrBuilder getUpdateTokenRequestOrBuilder() {
        if (clientMessageCase_ == 5) {
           return (tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest) clientMessage_;
        }
        return tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest.getDefaultInstance();
      }

      public static final int DIRECT_READ_ACK_FIELD_NUMBER = 8;
      /**
       * .Ydb.Topic.StreamReadMessage.DirectReadAck direct_read_ack = 8;
       * @return Whether the directReadAck field is set.
       */
      @java.lang.Override
      public boolean hasDirectReadAck() {
        return clientMessageCase_ == 8;
      }
      /**
       * .Ydb.Topic.StreamReadMessage.DirectReadAck direct_read_ack = 8;
       * @return The directReadAck.
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.DirectReadAck getDirectReadAck() {
        if (clientMessageCase_ == 8) {
           return (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.DirectReadAck) clientMessage_;
        }
        return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.DirectReadAck.getDefaultInstance();
      }
      /**
       * .Ydb.Topic.StreamReadMessage.DirectReadAck direct_read_ack = 8;
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.DirectReadAckOrBuilder getDirectReadAckOrBuilder() {
        if (clientMessageCase_ == 8) {
           return (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.DirectReadAck) clientMessage_;
        }
        return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.DirectReadAck.getDefaultInstance();
      }

      public static final int START_PARTITION_SESSION_RESPONSE_FIELD_NUMBER = 6;
      /**
       * 
       * Responses to respective server commands.
       * 
       *
       * .Ydb.Topic.StreamReadMessage.StartPartitionSessionResponse start_partition_session_response = 6;
       * @return Whether the startPartitionSessionResponse field is set.
       */
      @java.lang.Override
      public boolean hasStartPartitionSessionResponse() {
        return clientMessageCase_ == 6;
      }
      /**
       * 
       * Responses to respective server commands.
       * 
       *
       * .Ydb.Topic.StreamReadMessage.StartPartitionSessionResponse start_partition_session_response = 6;
       * @return The startPartitionSessionResponse.
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionResponse getStartPartitionSessionResponse() {
        if (clientMessageCase_ == 6) {
           return (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionResponse) clientMessage_;
        }
        return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionResponse.getDefaultInstance();
      }
      /**
       * 
       * Responses to respective server commands.
       * 
       *
       * .Ydb.Topic.StreamReadMessage.StartPartitionSessionResponse start_partition_session_response = 6;
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionResponseOrBuilder getStartPartitionSessionResponseOrBuilder() {
        if (clientMessageCase_ == 6) {
           return (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionResponse) clientMessage_;
        }
        return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionResponse.getDefaultInstance();
      }

      public static final int STOP_PARTITION_SESSION_RESPONSE_FIELD_NUMBER = 7;
      /**
       * .Ydb.Topic.StreamReadMessage.StopPartitionSessionResponse stop_partition_session_response = 7;
       * @return Whether the stopPartitionSessionResponse field is set.
       */
      @java.lang.Override
      public boolean hasStopPartitionSessionResponse() {
        return clientMessageCase_ == 7;
      }
      /**
       * .Ydb.Topic.StreamReadMessage.StopPartitionSessionResponse stop_partition_session_response = 7;
       * @return The stopPartitionSessionResponse.
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionResponse getStopPartitionSessionResponse() {
        if (clientMessageCase_ == 7) {
           return (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionResponse) clientMessage_;
        }
        return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionResponse.getDefaultInstance();
      }
      /**
       * .Ydb.Topic.StreamReadMessage.StopPartitionSessionResponse stop_partition_session_response = 7;
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionResponseOrBuilder getStopPartitionSessionResponseOrBuilder() {
        if (clientMessageCase_ == 7) {
           return (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionResponse) clientMessage_;
        }
        return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionResponse.getDefaultInstance();
      }

      private byte memoizedIsInitialized = -1;
      @java.lang.Override
      public final boolean isInitialized() {
        byte isInitialized = memoizedIsInitialized;
        if (isInitialized == 1) return true;
        if (isInitialized == 0) return false;

        memoizedIsInitialized = 1;
        return true;
      }

      @java.lang.Override
      public void writeTo(com.google.protobuf.CodedOutputStream output)
                          throws java.io.IOException {
        if (clientMessageCase_ == 1) {
          output.writeMessage(1, (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest) clientMessage_);
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        if (clientMessageCase_ == 2) {
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        if (clientMessageCase_ == 3) {
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        }
        if (clientMessageCase_ == 4) {
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        }
        if (clientMessageCase_ == 5) {
          output.writeMessage(5, (tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest) clientMessage_);
        }
        if (clientMessageCase_ == 6) {
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        }
        if (clientMessageCase_ == 7) {
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          output.writeMessage(8, (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.DirectReadAck) clientMessage_);
        }
        getUnknownFields().writeTo(output);
      }

      @java.lang.Override
      public int getSerializedSize() {
        int size = memoizedSize;
        if (size != -1) return size;

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          size += com.google.protobuf.CodedOutputStream
            .computeMessageSize(8, (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.DirectReadAck) clientMessage_);
        }
        size += getUnknownFields().getSerializedSize();
        memoizedSize = size;
        return size;
      }

      @java.lang.Override
      public boolean equals(final java.lang.Object obj) {
        if (obj == this) {
         return true;
        }
        if (!(obj instanceof tech.ydb.proto.topic.YdbTopic.StreamReadMessage.FromClient)) {
          return super.equals(obj);
        }
        tech.ydb.proto.topic.YdbTopic.StreamReadMessage.FromClient other = (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.FromClient) obj;

        if (!getClientMessageCase().equals(other.getClientMessageCase())) return false;
        switch (clientMessageCase_) {
          case 1:
            if (!getInitRequest()
                .equals(other.getInitRequest())) return false;
            break;
          case 2:
            if (!getReadRequest()
                .equals(other.getReadRequest())) return false;
            break;
          case 3:
            if (!getCommitOffsetRequest()
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            break;
          case 4:
            if (!getPartitionSessionStatusRequest()
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            break;
          case 5:
            if (!getUpdateTokenRequest()
                .equals(other.getUpdateTokenRequest())) return false;
            break;
          case 8:
            if (!getDirectReadAck()
                .equals(other.getDirectReadAck())) return false;
            break;
          case 6:
            if (!getStartPartitionSessionResponse()
                .equals(other.getStartPartitionSessionResponse())) return false;
            break;
          case 7:
            if (!getStopPartitionSessionResponse()
                .equals(other.getStopPartitionSessionResponse())) return false;
            break;
          case 0:
          default:
        }
        if (!getUnknownFields().equals(other.getUnknownFields())) return false;
        return true;
      }

      @java.lang.Override
      public int hashCode() {
        if (memoizedHashCode != 0) {
          return memoizedHashCode;
        }
        int hash = 41;
        hash = (19 * hash) + getDescriptor().hashCode();
        switch (clientMessageCase_) {
          case 1:
            hash = (37 * hash) + INIT_REQUEST_FIELD_NUMBER;
            hash = (53 * hash) + getInitRequest().hashCode();
            break;
          case 2:
            hash = (37 * hash) + READ_REQUEST_FIELD_NUMBER;
            hash = (53 * hash) + getReadRequest().hashCode();
            break;
          case 3:
            hash = (37 * hash) + COMMIT_OFFSET_REQUEST_FIELD_NUMBER;
            hash = (53 * hash) + getCommitOffsetRequest().hashCode();
            break;
          case 4:
            hash = (37 * hash) + PARTITION_SESSION_STATUS_REQUEST_FIELD_NUMBER;
            hash = (53 * hash) + getPartitionSessionStatusRequest().hashCode();
            break;
          case 5:
            hash = (37 * hash) + UPDATE_TOKEN_REQUEST_FIELD_NUMBER;
            hash = (53 * hash) + getUpdateTokenRequest().hashCode();
            break;
          case 8:
            hash = (37 * hash) + DIRECT_READ_ACK_FIELD_NUMBER;
            hash = (53 * hash) + getDirectReadAck().hashCode();
            break;
          case 6:
            hash = (37 * hash) + START_PARTITION_SESSION_RESPONSE_FIELD_NUMBER;
            hash = (53 * hash) + getStartPartitionSessionResponse().hashCode();
            break;
          case 7:
            hash = (37 * hash) + STOP_PARTITION_SESSION_RESPONSE_FIELD_NUMBER;
            hash = (53 * hash) + getStopPartitionSessionResponse().hashCode();
            break;
          case 0:
          default:
        }
        hash = (29 * hash) + getUnknownFields().hashCode();
        memoizedHashCode = hash;
        return hash;
      }

      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.FromClient parseFrom(
          java.nio.ByteBuffer data)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.FromClient parseFrom(
          java.nio.ByteBuffer data,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data, extensionRegistry);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.FromClient parseFrom(
          com.google.protobuf.ByteString data)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.FromClient parseFrom(
          com.google.protobuf.ByteString data,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data, extensionRegistry);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.FromClient parseFrom(byte[] data)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.FromClient parseFrom(
          byte[] data,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data, extensionRegistry);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.FromClient parseFrom(java.io.InputStream input)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseWithIOException(PARSER, input);
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      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.FromClient parseFrom(
          java.io.InputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseWithIOException(PARSER, input, extensionRegistry);
      }

      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.FromClient parseDelimitedFrom(java.io.InputStream input)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseDelimitedWithIOException(PARSER, input);
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      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.FromClient parseDelimitedFrom(
          java.io.InputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
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      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.FromClient parseFrom(
          com.google.protobuf.CodedInputStream input)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseWithIOException(PARSER, input);
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      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.FromClient parseFrom(
          com.google.protobuf.CodedInputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseWithIOException(PARSER, input, extensionRegistry);
      }

      @java.lang.Override
      public Builder newBuilderForType() { return newBuilder(); }
      public static Builder newBuilder() {
        return DEFAULT_INSTANCE.toBuilder();
      }
      public static Builder newBuilder(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.FromClient prototype) {
        return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
      }
      @java.lang.Override
      public Builder toBuilder() {
        return this == DEFAULT_INSTANCE
            ? new Builder() : new Builder().mergeFrom(this);
      }

      @java.lang.Override
      protected Builder newBuilderForType(
          com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
        Builder builder = new Builder(parent);
        return builder;
      }
      /**
       * 
       * Client-server message for read session. Contains one of:
       *     InitRequest - handshake request.
       *     ReadRequest - request for data.
       *     CommitOffsetRequest - request for commit of some read data.
       *     PartitionSessionStatusRequest - request for session status
       *     UpdateTokenRequest - request to update auth token
       *     DirectReadAck - client signals it has finished direct reading from the partition node.
       *
       *     StartPartitionSessionResponse - Response to StreamReadServerMessage.StartPartitionSessionRequest.
       *         Client signals it is ready to get data from partition.
       *     StopPartitionSessionResponse - Response to StreamReadServerMessage.StopPartitionSessionRequest.
       *         Client signals it has finished working with partition. Mandatory for graceful stop, optional otherwise.
       * 
       *
       * Protobuf type {@code Ydb.Topic.StreamReadMessage.FromClient}
       */
      public static final class Builder extends
          com.google.protobuf.GeneratedMessageV3.Builder implements
          // @@protoc_insertion_point(builder_implements:Ydb.Topic.StreamReadMessage.FromClient)
          tech.ydb.proto.topic.YdbTopic.StreamReadMessage.FromClientOrBuilder {
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          return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamReadMessage_FromClient_descriptor;
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        @java.lang.Override
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        // Construct using tech.ydb.proto.topic.YdbTopic.StreamReadMessage.FromClient.newBuilder()
        private Builder() {

        }

        private Builder(
            com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
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        }
        @java.lang.Override
        public Builder clear() {
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          if (readRequestBuilder_ != null) {
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          }
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            commitOffsetRequestBuilder_.clear();
          }
          if (partitionSessionStatusRequestBuilder_ != null) {
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          }
          if (updateTokenRequestBuilder_ != null) {
            updateTokenRequestBuilder_.clear();
          }
          if (directReadAckBuilder_ != null) {
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          }
          if (startPartitionSessionResponseBuilder_ != null) {
            startPartitionSessionResponseBuilder_.clear();
          }
          if (stopPartitionSessionResponseBuilder_ != null) {
            stopPartitionSessionResponseBuilder_.clear();
          }
          clientMessageCase_ = 0;
          clientMessage_ = null;
          return this;
        }

        @java.lang.Override
        public com.google.protobuf.Descriptors.Descriptor
            getDescriptorForType() {
          return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamReadMessage_FromClient_descriptor;
        }

        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.FromClient getDefaultInstanceForType() {
          return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.FromClient.getDefaultInstance();
        }

        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.FromClient build() {
          tech.ydb.proto.topic.YdbTopic.StreamReadMessage.FromClient result = buildPartial();
          if (!result.isInitialized()) {
            throw newUninitializedMessageException(result);
          }
          return result;
        }

        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.FromClient buildPartial() {
          tech.ydb.proto.topic.YdbTopic.StreamReadMessage.FromClient result = new tech.ydb.proto.topic.YdbTopic.StreamReadMessage.FromClient(this);
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          buildPartialOneofs(result);
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        private void buildPartial0(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.FromClient result) {
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          }
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        public Builder mergeFrom(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.FromClient other) {
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          switch (other.getClientMessageCase()) {
            case INIT_REQUEST: {
              mergeInitRequest(other.getInitRequest());
              break;
            }
            case READ_REQUEST: {
              mergeReadRequest(other.getReadRequest());
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            }
            case COMMIT_OFFSET_REQUEST: {
              mergeCommitOffsetRequest(other.getCommitOffsetRequest());
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            }
            case PARTITION_SESSION_STATUS_REQUEST: {
              mergePartitionSessionStatusRequest(other.getPartitionSessionStatusRequest());
              break;
            }
            case UPDATE_TOKEN_REQUEST: {
              mergeUpdateTokenRequest(other.getUpdateTokenRequest());
              break;
            }
            case DIRECT_READ_ACK: {
              mergeDirectReadAck(other.getDirectReadAck());
              break;
            }
            case START_PARTITION_SESSION_RESPONSE: {
              mergeStartPartitionSessionResponse(other.getStartPartitionSessionResponse());
              break;
            }
            case STOP_PARTITION_SESSION_RESPONSE: {
              mergeStopPartitionSessionResponse(other.getStopPartitionSessionResponse());
              break;
            }
            case CLIENTMESSAGE_NOT_SET: {
              break;
            }
          }
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          onChanged();
          return this;
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        @java.lang.Override
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        @java.lang.Override
        public Builder mergeFrom(
            com.google.protobuf.CodedInputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
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                case 10: {
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                case 18: {
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                case 26: {
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                case 34: {
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                case 42: {
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                case 50: {
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                case 58: {
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                  break;
                } // case 58
                case 66: {
                  input.readMessage(
                      getDirectReadAckFieldBuilder().getBuilder(),
                      extensionRegistry);
                  clientMessageCase_ = 8;
                  break;
                } // case 66
                default: {
                  if (!super.parseUnknownField(input, extensionRegistry, tag)) {
                    done = true; // was an endgroup tag
                  }
                  break;
                } // default:
              } // switch (tag)
            } // while (!done)
          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
            throw e.unwrapIOException();
          } finally {
            onChanged();
          } // finally
          return this;
        }
        private int clientMessageCase_ = 0;
        private java.lang.Object clientMessage_;
        public ClientMessageCase
            getClientMessageCase() {
          return ClientMessageCase.forNumber(
              clientMessageCase_);
        }

        public Builder clearClientMessage() {
          clientMessageCase_ = 0;
          clientMessage_ = null;
          onChanged();
          return this;
        }

        private int bitField0_;

        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest.Builder, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequestOrBuilder> initRequestBuilder_;
        /**
         * 
         * Client requests.
         * 
         *
         * .Ydb.Topic.StreamReadMessage.InitRequest init_request = 1;
         * @return Whether the initRequest field is set.
         */
        @java.lang.Override
        public boolean hasInitRequest() {
          return clientMessageCase_ == 1;
        }
        /**
         * 
         * Client requests.
         * 
         *
         * .Ydb.Topic.StreamReadMessage.InitRequest init_request = 1;
         * @return The initRequest.
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest getInitRequest() {
          if (initRequestBuilder_ == null) {
            if (clientMessageCase_ == 1) {
              return (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest) clientMessage_;
            }
            return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest.getDefaultInstance();
          } else {
            if (clientMessageCase_ == 1) {
              return initRequestBuilder_.getMessage();
            }
            return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest.getDefaultInstance();
          }
        }
        /**
         * 
         * Client requests.
         * 
         *
         * .Ydb.Topic.StreamReadMessage.InitRequest init_request = 1;
         */
        public Builder setInitRequest(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest value) {
          if (initRequestBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            clientMessage_ = value;
            onChanged();
          } else {
            initRequestBuilder_.setMessage(value);
          }
          clientMessageCase_ = 1;
          return this;
        }
        /**
         * 
         * Client requests.
         * 
         *
         * .Ydb.Topic.StreamReadMessage.InitRequest init_request = 1;
         */
        public Builder setInitRequest(
            tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest.Builder builderForValue) {
          if (initRequestBuilder_ == null) {
            clientMessage_ = builderForValue.build();
            onChanged();
          } else {
            initRequestBuilder_.setMessage(builderForValue.build());
          }
          clientMessageCase_ = 1;
          return this;
        }
        /**
         * 
         * Client requests.
         * 
         *
         * .Ydb.Topic.StreamReadMessage.InitRequest init_request = 1;
         */
        public Builder mergeInitRequest(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest value) {
          if (initRequestBuilder_ == null) {
            if (clientMessageCase_ == 1 &&
                clientMessage_ != tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest.getDefaultInstance()) {
              clientMessage_ = tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest.newBuilder((tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest) clientMessage_)
                  .mergeFrom(value).buildPartial();
            } else {
              clientMessage_ = value;
            }
            onChanged();
          } else {
            if (clientMessageCase_ == 1) {
              initRequestBuilder_.mergeFrom(value);
            } else {
              initRequestBuilder_.setMessage(value);
            }
          }
          clientMessageCase_ = 1;
          return this;
        }
        /**
         * 
         * Client requests.
         * 
         *
         * .Ydb.Topic.StreamReadMessage.InitRequest init_request = 1;
         */
        public Builder clearInitRequest() {
          if (initRequestBuilder_ == null) {
            if (clientMessageCase_ == 1) {
              clientMessageCase_ = 0;
              clientMessage_ = null;
              onChanged();
            }
          } else {
            if (clientMessageCase_ == 1) {
              clientMessageCase_ = 0;
              clientMessage_ = null;
            }
            initRequestBuilder_.clear();
          }
          return this;
        }
        /**
         * 
         * Client requests.
         * 
         *
         * .Ydb.Topic.StreamReadMessage.InitRequest init_request = 1;
         */
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest.Builder getInitRequestBuilder() {
          return getInitRequestFieldBuilder().getBuilder();
        }
        /**
         * 
         * Client requests.
         * 
         *
         * .Ydb.Topic.StreamReadMessage.InitRequest init_request = 1;
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequestOrBuilder getInitRequestOrBuilder() {
          if ((clientMessageCase_ == 1) && (initRequestBuilder_ != null)) {
            return initRequestBuilder_.getMessageOrBuilder();
          } else {
            if (clientMessageCase_ == 1) {
              return (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest) clientMessage_;
            }
            return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest.getDefaultInstance();
          }
        }
        /**
         * 
         * Client requests.
         * 
         *
         * .Ydb.Topic.StreamReadMessage.InitRequest init_request = 1;
         */
        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest.Builder, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequestOrBuilder> 
            getInitRequestFieldBuilder() {
          if (initRequestBuilder_ == null) {
            if (!(clientMessageCase_ == 1)) {
              clientMessage_ = tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest.getDefaultInstance();
            }
            initRequestBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
                tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest.Builder, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequestOrBuilder>(
                    (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest) clientMessage_,
                    getParentForChildren(),
                    isClean());
            clientMessage_ = null;
          }
          clientMessageCase_ = 1;
          onChanged();
          return initRequestBuilder_;
        }

        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadRequest, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadRequest.Builder, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadRequestOrBuilder> readRequestBuilder_;
        /**
         * .Ydb.Topic.StreamReadMessage.ReadRequest read_request = 2;
         * @return Whether the readRequest field is set.
         */
        @java.lang.Override
        public boolean hasReadRequest() {
          return clientMessageCase_ == 2;
        }
        /**
         * .Ydb.Topic.StreamReadMessage.ReadRequest read_request = 2;
         * @return The readRequest.
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadRequest getReadRequest() {
          if (readRequestBuilder_ == null) {
            if (clientMessageCase_ == 2) {
              return (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadRequest) clientMessage_;
            }
            return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadRequest.getDefaultInstance();
          } else {
            if (clientMessageCase_ == 2) {
              return readRequestBuilder_.getMessage();
            }
            return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadRequest.getDefaultInstance();
          }
        }
        /**
         * .Ydb.Topic.StreamReadMessage.ReadRequest read_request = 2;
         */
        public Builder setReadRequest(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadRequest value) {
          if (readRequestBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            clientMessage_ = value;
            onChanged();
          } else {
            readRequestBuilder_.setMessage(value);
          }
          clientMessageCase_ = 2;
          return this;
        }
        /**
         * .Ydb.Topic.StreamReadMessage.ReadRequest read_request = 2;
         */
        public Builder setReadRequest(
            tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadRequest.Builder builderForValue) {
          if (readRequestBuilder_ == null) {
            clientMessage_ = builderForValue.build();
            onChanged();
          } else {
            readRequestBuilder_.setMessage(builderForValue.build());
          }
          clientMessageCase_ = 2;
          return this;
        }
        /**
         * .Ydb.Topic.StreamReadMessage.ReadRequest read_request = 2;
         */
        public Builder mergeReadRequest(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadRequest value) {
          if (readRequestBuilder_ == null) {
            if (clientMessageCase_ == 2 &&
                clientMessage_ != tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadRequest.getDefaultInstance()) {
              clientMessage_ = tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadRequest.newBuilder((tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadRequest) clientMessage_)
                  .mergeFrom(value).buildPartial();
            } else {
              clientMessage_ = value;
            }
            onChanged();
          } else {
            if (clientMessageCase_ == 2) {
              readRequestBuilder_.mergeFrom(value);
            } else {
              readRequestBuilder_.setMessage(value);
            }
          }
          clientMessageCase_ = 2;
          return this;
        }
        /**
         * .Ydb.Topic.StreamReadMessage.ReadRequest read_request = 2;
         */
        public Builder clearReadRequest() {
          if (readRequestBuilder_ == null) {
            if (clientMessageCase_ == 2) {
              clientMessageCase_ = 0;
              clientMessage_ = null;
              onChanged();
            }
          } else {
            if (clientMessageCase_ == 2) {
              clientMessageCase_ = 0;
              clientMessage_ = null;
            }
            readRequestBuilder_.clear();
          }
          return this;
        }
        /**
         * .Ydb.Topic.StreamReadMessage.ReadRequest read_request = 2;
         */
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadRequest.Builder getReadRequestBuilder() {
          return getReadRequestFieldBuilder().getBuilder();
        }
        /**
         * .Ydb.Topic.StreamReadMessage.ReadRequest read_request = 2;
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadRequestOrBuilder getReadRequestOrBuilder() {
          if ((clientMessageCase_ == 2) && (readRequestBuilder_ != null)) {
            return readRequestBuilder_.getMessageOrBuilder();
          } else {
            if (clientMessageCase_ == 2) {
              return (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadRequest) clientMessage_;
            }
            return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadRequest.getDefaultInstance();
          }
        }
        /**
         * .Ydb.Topic.StreamReadMessage.ReadRequest read_request = 2;
         */
        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadRequest, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadRequest.Builder, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadRequestOrBuilder> 
            getReadRequestFieldBuilder() {
          if (readRequestBuilder_ == null) {
            if (!(clientMessageCase_ == 2)) {
              clientMessage_ = tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadRequest.getDefaultInstance();
            }
            readRequestBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
                tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadRequest, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadRequest.Builder, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadRequestOrBuilder>(
                    (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadRequest) clientMessage_,
                    getParentForChildren(),
                    isClean());
            clientMessage_ = null;
          }
          clientMessageCase_ = 2;
          onChanged();
          return readRequestBuilder_;
        }

        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.Builder, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequestOrBuilder> commitOffsetRequestBuilder_;
        /**
         * .Ydb.Topic.StreamReadMessage.CommitOffsetRequest commit_offset_request = 3;
         * @return Whether the commitOffsetRequest field is set.
         */
        @java.lang.Override
        public boolean hasCommitOffsetRequest() {
          return clientMessageCase_ == 3;
        }
        /**
         * .Ydb.Topic.StreamReadMessage.CommitOffsetRequest commit_offset_request = 3;
         * @return The commitOffsetRequest.
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest getCommitOffsetRequest() {
          if (commitOffsetRequestBuilder_ == null) {
            if (clientMessageCase_ == 3) {
              return (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest) clientMessage_;
            }
            return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.getDefaultInstance();
          } else {
            if (clientMessageCase_ == 3) {
              return commitOffsetRequestBuilder_.getMessage();
            }
            return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.getDefaultInstance();
          }
        }
        /**
         * .Ydb.Topic.StreamReadMessage.CommitOffsetRequest commit_offset_request = 3;
         */
        public Builder setCommitOffsetRequest(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest value) {
          if (commitOffsetRequestBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            clientMessage_ = value;
            onChanged();
          } else {
            commitOffsetRequestBuilder_.setMessage(value);
          }
          clientMessageCase_ = 3;
          return this;
        }
        /**
         * .Ydb.Topic.StreamReadMessage.CommitOffsetRequest commit_offset_request = 3;
         */
        public Builder setCommitOffsetRequest(
            tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.Builder builderForValue) {
          if (commitOffsetRequestBuilder_ == null) {
            clientMessage_ = builderForValue.build();
            onChanged();
          } else {
            commitOffsetRequestBuilder_.setMessage(builderForValue.build());
          }
          clientMessageCase_ = 3;
          return this;
        }
        /**
         * .Ydb.Topic.StreamReadMessage.CommitOffsetRequest commit_offset_request = 3;
         */
        public Builder mergeCommitOffsetRequest(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest value) {
          if (commitOffsetRequestBuilder_ == null) {
            if (clientMessageCase_ == 3 &&
                clientMessage_ != tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.getDefaultInstance()) {
              clientMessage_ = tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.newBuilder((tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest) clientMessage_)
                  .mergeFrom(value).buildPartial();
            } else {
              clientMessage_ = value;
            }
            onChanged();
          } else {
            if (clientMessageCase_ == 3) {
              commitOffsetRequestBuilder_.mergeFrom(value);
            } else {
              commitOffsetRequestBuilder_.setMessage(value);
            }
          }
          clientMessageCase_ = 3;
          return this;
        }
        /**
         * .Ydb.Topic.StreamReadMessage.CommitOffsetRequest commit_offset_request = 3;
         */
        public Builder clearCommitOffsetRequest() {
          if (commitOffsetRequestBuilder_ == null) {
            if (clientMessageCase_ == 3) {
              clientMessageCase_ = 0;
              clientMessage_ = null;
              onChanged();
            }
          } else {
            if (clientMessageCase_ == 3) {
              clientMessageCase_ = 0;
              clientMessage_ = null;
            }
            commitOffsetRequestBuilder_.clear();
          }
          return this;
        }
        /**
         * .Ydb.Topic.StreamReadMessage.CommitOffsetRequest commit_offset_request = 3;
         */
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.Builder getCommitOffsetRequestBuilder() {
          return getCommitOffsetRequestFieldBuilder().getBuilder();
        }
        /**
         * .Ydb.Topic.StreamReadMessage.CommitOffsetRequest commit_offset_request = 3;
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequestOrBuilder getCommitOffsetRequestOrBuilder() {
          if ((clientMessageCase_ == 3) && (commitOffsetRequestBuilder_ != null)) {
            return commitOffsetRequestBuilder_.getMessageOrBuilder();
          } else {
            if (clientMessageCase_ == 3) {
              return (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest) clientMessage_;
            }
            return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.getDefaultInstance();
          }
        }
        /**
         * .Ydb.Topic.StreamReadMessage.CommitOffsetRequest commit_offset_request = 3;
         */
        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.Builder, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequestOrBuilder> 
            getCommitOffsetRequestFieldBuilder() {
          if (commitOffsetRequestBuilder_ == null) {
            if (!(clientMessageCase_ == 3)) {
              clientMessage_ = tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.getDefaultInstance();
            }
            commitOffsetRequestBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
                tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.Builder, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequestOrBuilder>(
                    (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest) clientMessage_,
                    getParentForChildren(),
                    isClean());
            clientMessage_ = null;
          }
          clientMessageCase_ = 3;
          onChanged();
          return commitOffsetRequestBuilder_;
        }

        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusRequest, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusRequest.Builder, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusRequestOrBuilder> partitionSessionStatusRequestBuilder_;
        /**
         * .Ydb.Topic.StreamReadMessage.PartitionSessionStatusRequest partition_session_status_request = 4;
         * @return Whether the partitionSessionStatusRequest field is set.
         */
        @java.lang.Override
        public boolean hasPartitionSessionStatusRequest() {
          return clientMessageCase_ == 4;
        }
        /**
         * .Ydb.Topic.StreamReadMessage.PartitionSessionStatusRequest partition_session_status_request = 4;
         * @return The partitionSessionStatusRequest.
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusRequest getPartitionSessionStatusRequest() {
          if (partitionSessionStatusRequestBuilder_ == null) {
            if (clientMessageCase_ == 4) {
              return (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusRequest) clientMessage_;
            }
            return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusRequest.getDefaultInstance();
          } else {
            if (clientMessageCase_ == 4) {
              return partitionSessionStatusRequestBuilder_.getMessage();
            }
            return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusRequest.getDefaultInstance();
          }
        }
        /**
         * .Ydb.Topic.StreamReadMessage.PartitionSessionStatusRequest partition_session_status_request = 4;
         */
        public Builder setPartitionSessionStatusRequest(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusRequest value) {
          if (partitionSessionStatusRequestBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            clientMessage_ = value;
            onChanged();
          } else {
            partitionSessionStatusRequestBuilder_.setMessage(value);
          }
          clientMessageCase_ = 4;
          return this;
        }
        /**
         * .Ydb.Topic.StreamReadMessage.PartitionSessionStatusRequest partition_session_status_request = 4;
         */
        public Builder setPartitionSessionStatusRequest(
            tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusRequest.Builder builderForValue) {
          if (partitionSessionStatusRequestBuilder_ == null) {
            clientMessage_ = builderForValue.build();
            onChanged();
          } else {
            partitionSessionStatusRequestBuilder_.setMessage(builderForValue.build());
          }
          clientMessageCase_ = 4;
          return this;
        }
        /**
         * .Ydb.Topic.StreamReadMessage.PartitionSessionStatusRequest partition_session_status_request = 4;
         */
        public Builder mergePartitionSessionStatusRequest(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusRequest value) {
          if (partitionSessionStatusRequestBuilder_ == null) {
            if (clientMessageCase_ == 4 &&
                clientMessage_ != tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusRequest.getDefaultInstance()) {
              clientMessage_ = tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusRequest.newBuilder((tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusRequest) clientMessage_)
                  .mergeFrom(value).buildPartial();
            } else {
              clientMessage_ = value;
            }
            onChanged();
          } else {
            if (clientMessageCase_ == 4) {
              partitionSessionStatusRequestBuilder_.mergeFrom(value);
            } else {
              partitionSessionStatusRequestBuilder_.setMessage(value);
            }
          }
          clientMessageCase_ = 4;
          return this;
        }
        /**
         * .Ydb.Topic.StreamReadMessage.PartitionSessionStatusRequest partition_session_status_request = 4;
         */
        public Builder clearPartitionSessionStatusRequest() {
          if (partitionSessionStatusRequestBuilder_ == null) {
            if (clientMessageCase_ == 4) {
              clientMessageCase_ = 0;
              clientMessage_ = null;
              onChanged();
            }
          } else {
            if (clientMessageCase_ == 4) {
              clientMessageCase_ = 0;
              clientMessage_ = null;
            }
            partitionSessionStatusRequestBuilder_.clear();
          }
          return this;
        }
        /**
         * .Ydb.Topic.StreamReadMessage.PartitionSessionStatusRequest partition_session_status_request = 4;
         */
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusRequest.Builder getPartitionSessionStatusRequestBuilder() {
          return getPartitionSessionStatusRequestFieldBuilder().getBuilder();
        }
        /**
         * .Ydb.Topic.StreamReadMessage.PartitionSessionStatusRequest partition_session_status_request = 4;
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusRequestOrBuilder getPartitionSessionStatusRequestOrBuilder() {
          if ((clientMessageCase_ == 4) && (partitionSessionStatusRequestBuilder_ != null)) {
            return partitionSessionStatusRequestBuilder_.getMessageOrBuilder();
          } else {
            if (clientMessageCase_ == 4) {
              return (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusRequest) clientMessage_;
            }
            return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusRequest.getDefaultInstance();
          }
        }
        /**
         * .Ydb.Topic.StreamReadMessage.PartitionSessionStatusRequest partition_session_status_request = 4;
         */
        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusRequest, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusRequest.Builder, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusRequestOrBuilder> 
            getPartitionSessionStatusRequestFieldBuilder() {
          if (partitionSessionStatusRequestBuilder_ == null) {
            if (!(clientMessageCase_ == 4)) {
              clientMessage_ = tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusRequest.getDefaultInstance();
            }
            partitionSessionStatusRequestBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
                tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusRequest, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusRequest.Builder, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusRequestOrBuilder>(
                    (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusRequest) clientMessage_,
                    getParentForChildren(),
                    isClean());
            clientMessage_ = null;
          }
          clientMessageCase_ = 4;
          onChanged();
          return partitionSessionStatusRequestBuilder_;
        }

        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest, tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest.Builder, tech.ydb.proto.topic.YdbTopic.UpdateTokenRequestOrBuilder> updateTokenRequestBuilder_;
        /**
         * .Ydb.Topic.UpdateTokenRequest update_token_request = 5;
         * @return Whether the updateTokenRequest field is set.
         */
        @java.lang.Override
        public boolean hasUpdateTokenRequest() {
          return clientMessageCase_ == 5;
        }
        /**
         * .Ydb.Topic.UpdateTokenRequest update_token_request = 5;
         * @return The updateTokenRequest.
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest getUpdateTokenRequest() {
          if (updateTokenRequestBuilder_ == null) {
            if (clientMessageCase_ == 5) {
              return (tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest) clientMessage_;
            }
            return tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest.getDefaultInstance();
          } else {
            if (clientMessageCase_ == 5) {
              return updateTokenRequestBuilder_.getMessage();
            }
            return tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest.getDefaultInstance();
          }
        }
        /**
         * .Ydb.Topic.UpdateTokenRequest update_token_request = 5;
         */
        public Builder setUpdateTokenRequest(tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest value) {
          if (updateTokenRequestBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            clientMessage_ = value;
            onChanged();
          } else {
            updateTokenRequestBuilder_.setMessage(value);
          }
          clientMessageCase_ = 5;
          return this;
        }
        /**
         * .Ydb.Topic.UpdateTokenRequest update_token_request = 5;
         */
        public Builder setUpdateTokenRequest(
            tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest.Builder builderForValue) {
          if (updateTokenRequestBuilder_ == null) {
            clientMessage_ = builderForValue.build();
            onChanged();
          } else {
            updateTokenRequestBuilder_.setMessage(builderForValue.build());
          }
          clientMessageCase_ = 5;
          return this;
        }
        /**
         * .Ydb.Topic.UpdateTokenRequest update_token_request = 5;
         */
        public Builder mergeUpdateTokenRequest(tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest value) {
          if (updateTokenRequestBuilder_ == null) {
            if (clientMessageCase_ == 5 &&
                clientMessage_ != tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest.getDefaultInstance()) {
              clientMessage_ = tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest.newBuilder((tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest) clientMessage_)
                  .mergeFrom(value).buildPartial();
            } else {
              clientMessage_ = value;
            }
            onChanged();
          } else {
            if (clientMessageCase_ == 5) {
              updateTokenRequestBuilder_.mergeFrom(value);
            } else {
              updateTokenRequestBuilder_.setMessage(value);
            }
          }
          clientMessageCase_ = 5;
          return this;
        }
        /**
         * .Ydb.Topic.UpdateTokenRequest update_token_request = 5;
         */
        public Builder clearUpdateTokenRequest() {
          if (updateTokenRequestBuilder_ == null) {
            if (clientMessageCase_ == 5) {
              clientMessageCase_ = 0;
              clientMessage_ = null;
              onChanged();
            }
          } else {
            if (clientMessageCase_ == 5) {
              clientMessageCase_ = 0;
              clientMessage_ = null;
            }
            updateTokenRequestBuilder_.clear();
          }
          return this;
        }
        /**
         * .Ydb.Topic.UpdateTokenRequest update_token_request = 5;
         */
        public tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest.Builder getUpdateTokenRequestBuilder() {
          return getUpdateTokenRequestFieldBuilder().getBuilder();
        }
        /**
         * .Ydb.Topic.UpdateTokenRequest update_token_request = 5;
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.UpdateTokenRequestOrBuilder getUpdateTokenRequestOrBuilder() {
          if ((clientMessageCase_ == 5) && (updateTokenRequestBuilder_ != null)) {
            return updateTokenRequestBuilder_.getMessageOrBuilder();
          } else {
            if (clientMessageCase_ == 5) {
              return (tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest) clientMessage_;
            }
            return tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest.getDefaultInstance();
          }
        }
        /**
         * .Ydb.Topic.UpdateTokenRequest update_token_request = 5;
         */
        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest, tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest.Builder, tech.ydb.proto.topic.YdbTopic.UpdateTokenRequestOrBuilder> 
            getUpdateTokenRequestFieldBuilder() {
          if (updateTokenRequestBuilder_ == null) {
            if (!(clientMessageCase_ == 5)) {
              clientMessage_ = tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest.getDefaultInstance();
            }
            updateTokenRequestBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
                tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest, tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest.Builder, tech.ydb.proto.topic.YdbTopic.UpdateTokenRequestOrBuilder>(
                    (tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest) clientMessage_,
                    getParentForChildren(),
                    isClean());
            clientMessage_ = null;
          }
          clientMessageCase_ = 5;
          onChanged();
          return updateTokenRequestBuilder_;
        }

        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.StreamReadMessage.DirectReadAck, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.DirectReadAck.Builder, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.DirectReadAckOrBuilder> directReadAckBuilder_;
        /**
         * .Ydb.Topic.StreamReadMessage.DirectReadAck direct_read_ack = 8;
         * @return Whether the directReadAck field is set.
         */
        @java.lang.Override
        public boolean hasDirectReadAck() {
          return clientMessageCase_ == 8;
        }
        /**
         * .Ydb.Topic.StreamReadMessage.DirectReadAck direct_read_ack = 8;
         * @return The directReadAck.
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.DirectReadAck getDirectReadAck() {
          if (directReadAckBuilder_ == null) {
            if (clientMessageCase_ == 8) {
              return (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.DirectReadAck) clientMessage_;
            }
            return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.DirectReadAck.getDefaultInstance();
          } else {
            if (clientMessageCase_ == 8) {
              return directReadAckBuilder_.getMessage();
            }
            return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.DirectReadAck.getDefaultInstance();
          }
        }
        /**
         * .Ydb.Topic.StreamReadMessage.DirectReadAck direct_read_ack = 8;
         */
        public Builder setDirectReadAck(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.DirectReadAck value) {
          if (directReadAckBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            clientMessage_ = value;
            onChanged();
          } else {
            directReadAckBuilder_.setMessage(value);
          }
          clientMessageCase_ = 8;
          return this;
        }
        /**
         * .Ydb.Topic.StreamReadMessage.DirectReadAck direct_read_ack = 8;
         */
        public Builder setDirectReadAck(
            tech.ydb.proto.topic.YdbTopic.StreamReadMessage.DirectReadAck.Builder builderForValue) {
          if (directReadAckBuilder_ == null) {
            clientMessage_ = builderForValue.build();
            onChanged();
          } else {
            directReadAckBuilder_.setMessage(builderForValue.build());
          }
          clientMessageCase_ = 8;
          return this;
        }
        /**
         * .Ydb.Topic.StreamReadMessage.DirectReadAck direct_read_ack = 8;
         */
        public Builder mergeDirectReadAck(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.DirectReadAck value) {
          if (directReadAckBuilder_ == null) {
            if (clientMessageCase_ == 8 &&
                clientMessage_ != tech.ydb.proto.topic.YdbTopic.StreamReadMessage.DirectReadAck.getDefaultInstance()) {
              clientMessage_ = tech.ydb.proto.topic.YdbTopic.StreamReadMessage.DirectReadAck.newBuilder((tech.ydb.proto.topic.YdbTopic.StreamReadMessage.DirectReadAck) clientMessage_)
                  .mergeFrom(value).buildPartial();
            } else {
              clientMessage_ = value;
            }
            onChanged();
          } else {
            if (clientMessageCase_ == 8) {
              directReadAckBuilder_.mergeFrom(value);
            } else {
              directReadAckBuilder_.setMessage(value);
            }
          }
          clientMessageCase_ = 8;
          return this;
        }
        /**
         * .Ydb.Topic.StreamReadMessage.DirectReadAck direct_read_ack = 8;
         */
        public Builder clearDirectReadAck() {
          if (directReadAckBuilder_ == null) {
            if (clientMessageCase_ == 8) {
              clientMessageCase_ = 0;
              clientMessage_ = null;
              onChanged();
            }
          } else {
            if (clientMessageCase_ == 8) {
              clientMessageCase_ = 0;
              clientMessage_ = null;
            }
            directReadAckBuilder_.clear();
          }
          return this;
        }
        /**
         * .Ydb.Topic.StreamReadMessage.DirectReadAck direct_read_ack = 8;
         */
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.DirectReadAck.Builder getDirectReadAckBuilder() {
          return getDirectReadAckFieldBuilder().getBuilder();
        }
        /**
         * .Ydb.Topic.StreamReadMessage.DirectReadAck direct_read_ack = 8;
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.DirectReadAckOrBuilder getDirectReadAckOrBuilder() {
          if ((clientMessageCase_ == 8) && (directReadAckBuilder_ != null)) {
            return directReadAckBuilder_.getMessageOrBuilder();
          } else {
            if (clientMessageCase_ == 8) {
              return (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.DirectReadAck) clientMessage_;
            }
            return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.DirectReadAck.getDefaultInstance();
          }
        }
        /**
         * .Ydb.Topic.StreamReadMessage.DirectReadAck direct_read_ack = 8;
         */
        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.StreamReadMessage.DirectReadAck, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.DirectReadAck.Builder, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.DirectReadAckOrBuilder> 
            getDirectReadAckFieldBuilder() {
          if (directReadAckBuilder_ == null) {
            if (!(clientMessageCase_ == 8)) {
              clientMessage_ = tech.ydb.proto.topic.YdbTopic.StreamReadMessage.DirectReadAck.getDefaultInstance();
            }
            directReadAckBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
                tech.ydb.proto.topic.YdbTopic.StreamReadMessage.DirectReadAck, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.DirectReadAck.Builder, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.DirectReadAckOrBuilder>(
                    (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.DirectReadAck) clientMessage_,
                    getParentForChildren(),
                    isClean());
            clientMessage_ = null;
          }
          clientMessageCase_ = 8;
          onChanged();
          return directReadAckBuilder_;
        }

        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionResponse, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionResponse.Builder, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionResponseOrBuilder> startPartitionSessionResponseBuilder_;
        /**
         * 
         * Responses to respective server commands.
         * 
         *
         * .Ydb.Topic.StreamReadMessage.StartPartitionSessionResponse start_partition_session_response = 6;
         * @return Whether the startPartitionSessionResponse field is set.
         */
        @java.lang.Override
        public boolean hasStartPartitionSessionResponse() {
          return clientMessageCase_ == 6;
        }
        /**
         * 
         * Responses to respective server commands.
         * 
         *
         * .Ydb.Topic.StreamReadMessage.StartPartitionSessionResponse start_partition_session_response = 6;
         * @return The startPartitionSessionResponse.
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionResponse getStartPartitionSessionResponse() {
          if (startPartitionSessionResponseBuilder_ == null) {
            if (clientMessageCase_ == 6) {
              return (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionResponse) clientMessage_;
            }
            return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionResponse.getDefaultInstance();
          } else {
            if (clientMessageCase_ == 6) {
              return startPartitionSessionResponseBuilder_.getMessage();
            }
            return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionResponse.getDefaultInstance();
          }
        }
        /**
         * 
         * Responses to respective server commands.
         * 
         *
         * .Ydb.Topic.StreamReadMessage.StartPartitionSessionResponse start_partition_session_response = 6;
         */
        public Builder setStartPartitionSessionResponse(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionResponse value) {
          if (startPartitionSessionResponseBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            clientMessage_ = value;
            onChanged();
          } else {
            startPartitionSessionResponseBuilder_.setMessage(value);
          }
          clientMessageCase_ = 6;
          return this;
        }
        /**
         * 
         * Responses to respective server commands.
         * 
         *
         * .Ydb.Topic.StreamReadMessage.StartPartitionSessionResponse start_partition_session_response = 6;
         */
        public Builder setStartPartitionSessionResponse(
            tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionResponse.Builder builderForValue) {
          if (startPartitionSessionResponseBuilder_ == null) {
            clientMessage_ = builderForValue.build();
            onChanged();
          } else {
            startPartitionSessionResponseBuilder_.setMessage(builderForValue.build());
          }
          clientMessageCase_ = 6;
          return this;
        }
        /**
         * 
         * Responses to respective server commands.
         * 
         *
         * .Ydb.Topic.StreamReadMessage.StartPartitionSessionResponse start_partition_session_response = 6;
         */
        public Builder mergeStartPartitionSessionResponse(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionResponse value) {
          if (startPartitionSessionResponseBuilder_ == null) {
            if (clientMessageCase_ == 6 &&
                clientMessage_ != tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionResponse.getDefaultInstance()) {
              clientMessage_ = tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionResponse.newBuilder((tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionResponse) clientMessage_)
                  .mergeFrom(value).buildPartial();
            } else {
              clientMessage_ = value;
            }
            onChanged();
          } else {
            if (clientMessageCase_ == 6) {
              startPartitionSessionResponseBuilder_.mergeFrom(value);
            } else {
              startPartitionSessionResponseBuilder_.setMessage(value);
            }
          }
          clientMessageCase_ = 6;
          return this;
        }
        /**
         * 
         * Responses to respective server commands.
         * 
         *
         * .Ydb.Topic.StreamReadMessage.StartPartitionSessionResponse start_partition_session_response = 6;
         */
        public Builder clearStartPartitionSessionResponse() {
          if (startPartitionSessionResponseBuilder_ == null) {
            if (clientMessageCase_ == 6) {
              clientMessageCase_ = 0;
              clientMessage_ = null;
              onChanged();
            }
          } else {
            if (clientMessageCase_ == 6) {
              clientMessageCase_ = 0;
              clientMessage_ = null;
            }
            startPartitionSessionResponseBuilder_.clear();
          }
          return this;
        }
        /**
         * 
         * Responses to respective server commands.
         * 
         *
         * .Ydb.Topic.StreamReadMessage.StartPartitionSessionResponse start_partition_session_response = 6;
         */
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionResponse.Builder getStartPartitionSessionResponseBuilder() {
          return getStartPartitionSessionResponseFieldBuilder().getBuilder();
        }
        /**
         * 
         * Responses to respective server commands.
         * 
         *
         * .Ydb.Topic.StreamReadMessage.StartPartitionSessionResponse start_partition_session_response = 6;
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionResponseOrBuilder getStartPartitionSessionResponseOrBuilder() {
          if ((clientMessageCase_ == 6) && (startPartitionSessionResponseBuilder_ != null)) {
            return startPartitionSessionResponseBuilder_.getMessageOrBuilder();
          } else {
            if (clientMessageCase_ == 6) {
              return (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionResponse) clientMessage_;
            }
            return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionResponse.getDefaultInstance();
          }
        }
        /**
         * 
         * Responses to respective server commands.
         * 
         *
         * .Ydb.Topic.StreamReadMessage.StartPartitionSessionResponse start_partition_session_response = 6;
         */
        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionResponse, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionResponse.Builder, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionResponseOrBuilder> 
            getStartPartitionSessionResponseFieldBuilder() {
          if (startPartitionSessionResponseBuilder_ == null) {
            if (!(clientMessageCase_ == 6)) {
              clientMessage_ = tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionResponse.getDefaultInstance();
            }
            startPartitionSessionResponseBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
                tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionResponse, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionResponse.Builder, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionResponseOrBuilder>(
                    (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionResponse) clientMessage_,
                    getParentForChildren(),
                    isClean());
            clientMessage_ = null;
          }
          clientMessageCase_ = 6;
          onChanged();
          return startPartitionSessionResponseBuilder_;
        }

        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionResponse, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionResponse.Builder, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionResponseOrBuilder> stopPartitionSessionResponseBuilder_;
        /**
         * .Ydb.Topic.StreamReadMessage.StopPartitionSessionResponse stop_partition_session_response = 7;
         * @return Whether the stopPartitionSessionResponse field is set.
         */
        @java.lang.Override
        public boolean hasStopPartitionSessionResponse() {
          return clientMessageCase_ == 7;
        }
        /**
         * .Ydb.Topic.StreamReadMessage.StopPartitionSessionResponse stop_partition_session_response = 7;
         * @return The stopPartitionSessionResponse.
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionResponse getStopPartitionSessionResponse() {
          if (stopPartitionSessionResponseBuilder_ == null) {
            if (clientMessageCase_ == 7) {
              return (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionResponse) clientMessage_;
            }
            return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionResponse.getDefaultInstance();
          } else {
            if (clientMessageCase_ == 7) {
              return stopPartitionSessionResponseBuilder_.getMessage();
            }
            return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionResponse.getDefaultInstance();
          }
        }
        /**
         * .Ydb.Topic.StreamReadMessage.StopPartitionSessionResponse stop_partition_session_response = 7;
         */
        public Builder setStopPartitionSessionResponse(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionResponse value) {
          if (stopPartitionSessionResponseBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            clientMessage_ = value;
            onChanged();
          } else {
            stopPartitionSessionResponseBuilder_.setMessage(value);
          }
          clientMessageCase_ = 7;
          return this;
        }
        /**
         * .Ydb.Topic.StreamReadMessage.StopPartitionSessionResponse stop_partition_session_response = 7;
         */
        public Builder setStopPartitionSessionResponse(
            tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionResponse.Builder builderForValue) {
          if (stopPartitionSessionResponseBuilder_ == null) {
            clientMessage_ = builderForValue.build();
            onChanged();
          } else {
            stopPartitionSessionResponseBuilder_.setMessage(builderForValue.build());
          }
          clientMessageCase_ = 7;
          return this;
        }
        /**
         * .Ydb.Topic.StreamReadMessage.StopPartitionSessionResponse stop_partition_session_response = 7;
         */
        public Builder mergeStopPartitionSessionResponse(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionResponse value) {
          if (stopPartitionSessionResponseBuilder_ == null) {
            if (clientMessageCase_ == 7 &&
                clientMessage_ != tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionResponse.getDefaultInstance()) {
              clientMessage_ = tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionResponse.newBuilder((tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionResponse) clientMessage_)
                  .mergeFrom(value).buildPartial();
            } else {
              clientMessage_ = value;
            }
            onChanged();
          } else {
            if (clientMessageCase_ == 7) {
              stopPartitionSessionResponseBuilder_.mergeFrom(value);
            } else {
              stopPartitionSessionResponseBuilder_.setMessage(value);
            }
          }
          clientMessageCase_ = 7;
          return this;
        }
        /**
         * .Ydb.Topic.StreamReadMessage.StopPartitionSessionResponse stop_partition_session_response = 7;
         */
        public Builder clearStopPartitionSessionResponse() {
          if (stopPartitionSessionResponseBuilder_ == null) {
            if (clientMessageCase_ == 7) {
              clientMessageCase_ = 0;
              clientMessage_ = null;
              onChanged();
            }
          } else {
            if (clientMessageCase_ == 7) {
              clientMessageCase_ = 0;
              clientMessage_ = null;
            }
            stopPartitionSessionResponseBuilder_.clear();
          }
          return this;
        }
        /**
         * .Ydb.Topic.StreamReadMessage.StopPartitionSessionResponse stop_partition_session_response = 7;
         */
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionResponse.Builder getStopPartitionSessionResponseBuilder() {
          return getStopPartitionSessionResponseFieldBuilder().getBuilder();
        }
        /**
         * .Ydb.Topic.StreamReadMessage.StopPartitionSessionResponse stop_partition_session_response = 7;
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionResponseOrBuilder getStopPartitionSessionResponseOrBuilder() {
          if ((clientMessageCase_ == 7) && (stopPartitionSessionResponseBuilder_ != null)) {
            return stopPartitionSessionResponseBuilder_.getMessageOrBuilder();
          } else {
            if (clientMessageCase_ == 7) {
              return (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionResponse) clientMessage_;
            }
            return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionResponse.getDefaultInstance();
          }
        }
        /**
         * .Ydb.Topic.StreamReadMessage.StopPartitionSessionResponse stop_partition_session_response = 7;
         */
        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionResponse, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionResponse.Builder, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionResponseOrBuilder> 
            getStopPartitionSessionResponseFieldBuilder() {
          if (stopPartitionSessionResponseBuilder_ == null) {
            if (!(clientMessageCase_ == 7)) {
              clientMessage_ = tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionResponse.getDefaultInstance();
            }
            stopPartitionSessionResponseBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
                tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionResponse, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionResponse.Builder, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionResponseOrBuilder>(
                    (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionResponse) clientMessage_,
                    getParentForChildren(),
                    isClean());
            clientMessage_ = null;
          }
          clientMessageCase_ = 7;
          onChanged();
          return stopPartitionSessionResponseBuilder_;
        }
        @java.lang.Override
        public final Builder setUnknownFields(
            final com.google.protobuf.UnknownFieldSet unknownFields) {
          return super.setUnknownFields(unknownFields);
        }

        @java.lang.Override
        public final Builder mergeUnknownFields(
            final com.google.protobuf.UnknownFieldSet unknownFields) {
          return super.mergeUnknownFields(unknownFields);
        }


        // @@protoc_insertion_point(builder_scope:Ydb.Topic.StreamReadMessage.FromClient)
      }

      // @@protoc_insertion_point(class_scope:Ydb.Topic.StreamReadMessage.FromClient)
      private static final tech.ydb.proto.topic.YdbTopic.StreamReadMessage.FromClient DEFAULT_INSTANCE;
      static {
        DEFAULT_INSTANCE = new tech.ydb.proto.topic.YdbTopic.StreamReadMessage.FromClient();
      }

      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.FromClient getDefaultInstance() {
        return DEFAULT_INSTANCE;
      }

      private static final com.google.protobuf.Parser
          PARSER = new com.google.protobuf.AbstractParser() {
        @java.lang.Override
        public FromClient parsePartialFrom(
            com.google.protobuf.CodedInputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws com.google.protobuf.InvalidProtocolBufferException {
          Builder builder = newBuilder();
          try {
            builder.mergeFrom(input, extensionRegistry);
          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
            throw e.setUnfinishedMessage(builder.buildPartial());
          } catch (com.google.protobuf.UninitializedMessageException e) {
            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
          } catch (java.io.IOException e) {
            throw new com.google.protobuf.InvalidProtocolBufferException(e)
                .setUnfinishedMessage(builder.buildPartial());
          }
          return builder.buildPartial();
        }
      };

      public static com.google.protobuf.Parser parser() {
        return PARSER;
      }

      @java.lang.Override
      public com.google.protobuf.Parser getParserForType() {
        return PARSER;
      }

      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.FromClient getDefaultInstanceForType() {
        return DEFAULT_INSTANCE;
      }

    }

    public interface FromServerOrBuilder extends
        // @@protoc_insertion_point(interface_extends:Ydb.Topic.StreamReadMessage.FromServer)
        com.google.protobuf.MessageOrBuilder {

      /**
       * 
       * Server status of response.
       * 
       *
       * .Ydb.StatusIds.StatusCode status = 1;
       * @return The enum numeric value on the wire for status.
       */
      int getStatusValue();
      /**
       * 
       * Server status of response.
       * 
       *
       * .Ydb.StatusIds.StatusCode status = 1;
       * @return The status.
       */
      tech.ydb.proto.StatusCodesProtos.StatusIds.StatusCode getStatus();

      /**
       * 
       * Issues if any.
       * 
       *
       * repeated .Ydb.Issue.IssueMessage issues = 2;
       */
      java.util.List 
          getIssuesList();
      /**
       * 
       * Issues if any.
       * 
       *
       * repeated .Ydb.Issue.IssueMessage issues = 2;
       */
      tech.ydb.proto.YdbIssueMessage.IssueMessage getIssues(int index);
      /**
       * 
       * Issues if any.
       * 
       *
       * repeated .Ydb.Issue.IssueMessage issues = 2;
       */
      int getIssuesCount();
      /**
       * 
       * Issues if any.
       * 
       *
       * repeated .Ydb.Issue.IssueMessage issues = 2;
       */
      java.util.List 
          getIssuesOrBuilderList();
      /**
       * 
       * Issues if any.
       * 
       *
       * repeated .Ydb.Issue.IssueMessage issues = 2;
       */
      tech.ydb.proto.YdbIssueMessage.IssueMessageOrBuilder getIssuesOrBuilder(
          int index);

      /**
       * 
       * Responses to respective client requests.
       * 
       *
       * .Ydb.Topic.StreamReadMessage.InitResponse init_response = 3;
       * @return Whether the initResponse field is set.
       */
      boolean hasInitResponse();
      /**
       * 
       * Responses to respective client requests.
       * 
       *
       * .Ydb.Topic.StreamReadMessage.InitResponse init_response = 3;
       * @return The initResponse.
       */
      tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitResponse getInitResponse();
      /**
       * 
       * Responses to respective client requests.
       * 
       *
       * .Ydb.Topic.StreamReadMessage.InitResponse init_response = 3;
       */
      tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitResponseOrBuilder getInitResponseOrBuilder();

      /**
       * .Ydb.Topic.StreamReadMessage.ReadResponse read_response = 4;
       * @return Whether the readResponse field is set.
       */
      boolean hasReadResponse();
      /**
       * .Ydb.Topic.StreamReadMessage.ReadResponse read_response = 4;
       * @return The readResponse.
       */
      tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse getReadResponse();
      /**
       * .Ydb.Topic.StreamReadMessage.ReadResponse read_response = 4;
       */
      tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponseOrBuilder getReadResponseOrBuilder();

      /**
       * .Ydb.Topic.StreamReadMessage.CommitOffsetResponse commit_offset_response = 5;
       * @return Whether the commitOffsetResponse field is set.
       */
      boolean hasCommitOffsetResponse();
      /**
       * .Ydb.Topic.StreamReadMessage.CommitOffsetResponse commit_offset_response = 5;
       * @return The commitOffsetResponse.
       */
      tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse getCommitOffsetResponse();
      /**
       * .Ydb.Topic.StreamReadMessage.CommitOffsetResponse commit_offset_response = 5;
       */
      tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponseOrBuilder getCommitOffsetResponseOrBuilder();

      /**
       * .Ydb.Topic.StreamReadMessage.PartitionSessionStatusResponse partition_session_status_response = 6;
       * @return Whether the partitionSessionStatusResponse field is set.
       */
      boolean hasPartitionSessionStatusResponse();
      /**
       * .Ydb.Topic.StreamReadMessage.PartitionSessionStatusResponse partition_session_status_response = 6;
       * @return The partitionSessionStatusResponse.
       */
      tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusResponse getPartitionSessionStatusResponse();
      /**
       * .Ydb.Topic.StreamReadMessage.PartitionSessionStatusResponse partition_session_status_response = 6;
       */
      tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusResponseOrBuilder getPartitionSessionStatusResponseOrBuilder();

      /**
       * .Ydb.Topic.UpdateTokenResponse update_token_response = 7;
       * @return Whether the updateTokenResponse field is set.
       */
      boolean hasUpdateTokenResponse();
      /**
       * .Ydb.Topic.UpdateTokenResponse update_token_response = 7;
       * @return The updateTokenResponse.
       */
      tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse getUpdateTokenResponse();
      /**
       * .Ydb.Topic.UpdateTokenResponse update_token_response = 7;
       */
      tech.ydb.proto.topic.YdbTopic.UpdateTokenResponseOrBuilder getUpdateTokenResponseOrBuilder();

      /**
       * 
       * Server commands.
       * 
       *
       * .Ydb.Topic.StreamReadMessage.StartPartitionSessionRequest start_partition_session_request = 8;
       * @return Whether the startPartitionSessionRequest field is set.
       */
      boolean hasStartPartitionSessionRequest();
      /**
       * 
       * Server commands.
       * 
       *
       * .Ydb.Topic.StreamReadMessage.StartPartitionSessionRequest start_partition_session_request = 8;
       * @return The startPartitionSessionRequest.
       */
      tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest getStartPartitionSessionRequest();
      /**
       * 
       * Server commands.
       * 
       *
       * .Ydb.Topic.StreamReadMessage.StartPartitionSessionRequest start_partition_session_request = 8;
       */
      tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequestOrBuilder getStartPartitionSessionRequestOrBuilder();

      /**
       * .Ydb.Topic.StreamReadMessage.StopPartitionSessionRequest stop_partition_session_request = 9;
       * @return Whether the stopPartitionSessionRequest field is set.
       */
      boolean hasStopPartitionSessionRequest();
      /**
       * .Ydb.Topic.StreamReadMessage.StopPartitionSessionRequest stop_partition_session_request = 9;
       * @return The stopPartitionSessionRequest.
       */
      tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest getStopPartitionSessionRequest();
      /**
       * .Ydb.Topic.StreamReadMessage.StopPartitionSessionRequest stop_partition_session_request = 9;
       */
      tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequestOrBuilder getStopPartitionSessionRequestOrBuilder();

      /**
       * .Ydb.Topic.StreamReadMessage.UpdatePartitionSession update_partition_session = 10;
       * @return Whether the updatePartitionSession field is set.
       */
      boolean hasUpdatePartitionSession();
      /**
       * .Ydb.Topic.StreamReadMessage.UpdatePartitionSession update_partition_session = 10;
       * @return The updatePartitionSession.
       */
      tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSession getUpdatePartitionSession();
      /**
       * .Ydb.Topic.StreamReadMessage.UpdatePartitionSession update_partition_session = 10;
       */
      tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSessionOrBuilder getUpdatePartitionSessionOrBuilder();

      tech.ydb.proto.topic.YdbTopic.StreamReadMessage.FromServer.ServerMessageCase getServerMessageCase();
    }
    /**
     * 
     * Server-client message for read session. Contains one of:
     *     InitResponse - handshake response from server.
     *     ReadResponse - portion of data.
     *     CommitOffsetResponse - acknowledgment for commit.
     *     PartitionSessionStatusResponse - server response with partition session status.
     *     UpdateTokenResponse - acknowledgment of token update.
     *
     *     StartPartitionSessionRequest - command from server to create a partition session.
     *     StopPartitionSessionRequest - command from server to destroy a partition session.
     *     UpdatePartitionSession - command from server to update a partition session.
     * 
     *
     * Protobuf type {@code Ydb.Topic.StreamReadMessage.FromServer}
     */
    public static final class FromServer extends
        com.google.protobuf.GeneratedMessageV3 implements
        // @@protoc_insertion_point(message_implements:Ydb.Topic.StreamReadMessage.FromServer)
        FromServerOrBuilder {
    private static final long serialVersionUID = 0L;
      // Use FromServer.newBuilder() to construct.
      private FromServer(com.google.protobuf.GeneratedMessageV3.Builder builder) {
        super(builder);
      }
      private FromServer() {
        status_ = 0;
        issues_ = java.util.Collections.emptyList();
      }

      @java.lang.Override
      @SuppressWarnings({"unused"})
      protected java.lang.Object newInstance(
          UnusedPrivateParameter unused) {
        return new FromServer();
      }

      public static final com.google.protobuf.Descriptors.Descriptor
          getDescriptor() {
        return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamReadMessage_FromServer_descriptor;
      }

      @java.lang.Override
      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
          internalGetFieldAccessorTable() {
        return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamReadMessage_FromServer_fieldAccessorTable
            .ensureFieldAccessorsInitialized(
                tech.ydb.proto.topic.YdbTopic.StreamReadMessage.FromServer.class, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.FromServer.Builder.class);
      }

      private int serverMessageCase_ = 0;
      @SuppressWarnings("serial")
      private java.lang.Object serverMessage_;
      public enum ServerMessageCase
          implements com.google.protobuf.Internal.EnumLite,
              com.google.protobuf.AbstractMessage.InternalOneOfEnum {
        INIT_RESPONSE(3),
        READ_RESPONSE(4),
        COMMIT_OFFSET_RESPONSE(5),
        PARTITION_SESSION_STATUS_RESPONSE(6),
        UPDATE_TOKEN_RESPONSE(7),
        START_PARTITION_SESSION_REQUEST(8),
        STOP_PARTITION_SESSION_REQUEST(9),
        UPDATE_PARTITION_SESSION(10),
        SERVERMESSAGE_NOT_SET(0);
        private final int value;
        private ServerMessageCase(int value) {
          this.value = value;
        }
        /**
         * @param value The number of the enum to look for.
         * @return The enum associated with the given number.
         * @deprecated Use {@link #forNumber(int)} instead.
         */
        @java.lang.Deprecated
        public static ServerMessageCase valueOf(int value) {
          return forNumber(value);
        }

        public static ServerMessageCase forNumber(int value) {
          switch (value) {
            case 3: return INIT_RESPONSE;
            case 4: return READ_RESPONSE;
            case 5: return COMMIT_OFFSET_RESPONSE;
            case 6: return PARTITION_SESSION_STATUS_RESPONSE;
            case 7: return UPDATE_TOKEN_RESPONSE;
            case 8: return START_PARTITION_SESSION_REQUEST;
            case 9: return STOP_PARTITION_SESSION_REQUEST;
            case 10: return UPDATE_PARTITION_SESSION;
            case 0: return SERVERMESSAGE_NOT_SET;
            default: return null;
          }
        }
        public int getNumber() {
          return this.value;
        }
      };

      public ServerMessageCase
      getServerMessageCase() {
        return ServerMessageCase.forNumber(
            serverMessageCase_);
      }

      public static final int STATUS_FIELD_NUMBER = 1;
      private int status_ = 0;
      /**
       * 
       * Server status of response.
       * 
       *
       * .Ydb.StatusIds.StatusCode status = 1;
       * @return The enum numeric value on the wire for status.
       */
      @java.lang.Override public int getStatusValue() {
        return status_;
      }
      /**
       * 
       * Server status of response.
       * 
       *
       * .Ydb.StatusIds.StatusCode status = 1;
       * @return The status.
       */
      @java.lang.Override public tech.ydb.proto.StatusCodesProtos.StatusIds.StatusCode getStatus() {
        tech.ydb.proto.StatusCodesProtos.StatusIds.StatusCode result = tech.ydb.proto.StatusCodesProtos.StatusIds.StatusCode.forNumber(status_);
        return result == null ? tech.ydb.proto.StatusCodesProtos.StatusIds.StatusCode.UNRECOGNIZED : result;
      }

      public static final int ISSUES_FIELD_NUMBER = 2;
      @SuppressWarnings("serial")
      private java.util.List issues_;
      /**
       * 
       * Issues if any.
       * 
       *
       * repeated .Ydb.Issue.IssueMessage issues = 2;
       */
      @java.lang.Override
      public java.util.List getIssuesList() {
        return issues_;
      }
      /**
       * 
       * Issues if any.
       * 
       *
       * repeated .Ydb.Issue.IssueMessage issues = 2;
       */
      @java.lang.Override
      public java.util.List 
          getIssuesOrBuilderList() {
        return issues_;
      }
      /**
       * 
       * Issues if any.
       * 
       *
       * repeated .Ydb.Issue.IssueMessage issues = 2;
       */
      @java.lang.Override
      public int getIssuesCount() {
        return issues_.size();
      }
      /**
       * 
       * Issues if any.
       * 
       *
       * repeated .Ydb.Issue.IssueMessage issues = 2;
       */
      @java.lang.Override
      public tech.ydb.proto.YdbIssueMessage.IssueMessage getIssues(int index) {
        return issues_.get(index);
      }
      /**
       * 
       * Issues if any.
       * 
       *
       * repeated .Ydb.Issue.IssueMessage issues = 2;
       */
      @java.lang.Override
      public tech.ydb.proto.YdbIssueMessage.IssueMessageOrBuilder getIssuesOrBuilder(
          int index) {
        return issues_.get(index);
      }

      public static final int INIT_RESPONSE_FIELD_NUMBER = 3;
      /**
       * 
       * Responses to respective client requests.
       * 
       *
       * .Ydb.Topic.StreamReadMessage.InitResponse init_response = 3;
       * @return Whether the initResponse field is set.
       */
      @java.lang.Override
      public boolean hasInitResponse() {
        return serverMessageCase_ == 3;
      }
      /**
       * 
       * Responses to respective client requests.
       * 
       *
       * .Ydb.Topic.StreamReadMessage.InitResponse init_response = 3;
       * @return The initResponse.
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitResponse getInitResponse() {
        if (serverMessageCase_ == 3) {
           return (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitResponse) serverMessage_;
        }
        return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitResponse.getDefaultInstance();
      }
      /**
       * 
       * Responses to respective client requests.
       * 
       *
       * .Ydb.Topic.StreamReadMessage.InitResponse init_response = 3;
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitResponseOrBuilder getInitResponseOrBuilder() {
        if (serverMessageCase_ == 3) {
           return (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitResponse) serverMessage_;
        }
        return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitResponse.getDefaultInstance();
      }

      public static final int READ_RESPONSE_FIELD_NUMBER = 4;
      /**
       * .Ydb.Topic.StreamReadMessage.ReadResponse read_response = 4;
       * @return Whether the readResponse field is set.
       */
      @java.lang.Override
      public boolean hasReadResponse() {
        return serverMessageCase_ == 4;
      }
      /**
       * .Ydb.Topic.StreamReadMessage.ReadResponse read_response = 4;
       * @return The readResponse.
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse getReadResponse() {
        if (serverMessageCase_ == 4) {
           return (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse) serverMessage_;
        }
        return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.getDefaultInstance();
      }
      /**
       * .Ydb.Topic.StreamReadMessage.ReadResponse read_response = 4;
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponseOrBuilder getReadResponseOrBuilder() {
        if (serverMessageCase_ == 4) {
           return (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse) serverMessage_;
        }
        return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.getDefaultInstance();
      }

      public static final int COMMIT_OFFSET_RESPONSE_FIELD_NUMBER = 5;
      /**
       * .Ydb.Topic.StreamReadMessage.CommitOffsetResponse commit_offset_response = 5;
       * @return Whether the commitOffsetResponse field is set.
       */
      @java.lang.Override
      public boolean hasCommitOffsetResponse() {
        return serverMessageCase_ == 5;
      }
      /**
       * .Ydb.Topic.StreamReadMessage.CommitOffsetResponse commit_offset_response = 5;
       * @return The commitOffsetResponse.
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse getCommitOffsetResponse() {
        if (serverMessageCase_ == 5) {
           return (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse) serverMessage_;
        }
        return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.getDefaultInstance();
      }
      /**
       * .Ydb.Topic.StreamReadMessage.CommitOffsetResponse commit_offset_response = 5;
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponseOrBuilder getCommitOffsetResponseOrBuilder() {
        if (serverMessageCase_ == 5) {
           return (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse) serverMessage_;
        }
        return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.getDefaultInstance();
      }

      public static final int PARTITION_SESSION_STATUS_RESPONSE_FIELD_NUMBER = 6;
      /**
       * .Ydb.Topic.StreamReadMessage.PartitionSessionStatusResponse partition_session_status_response = 6;
       * @return Whether the partitionSessionStatusResponse field is set.
       */
      @java.lang.Override
      public boolean hasPartitionSessionStatusResponse() {
        return serverMessageCase_ == 6;
      }
      /**
       * .Ydb.Topic.StreamReadMessage.PartitionSessionStatusResponse partition_session_status_response = 6;
       * @return The partitionSessionStatusResponse.
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusResponse getPartitionSessionStatusResponse() {
        if (serverMessageCase_ == 6) {
           return (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusResponse) serverMessage_;
        }
        return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusResponse.getDefaultInstance();
      }
      /**
       * .Ydb.Topic.StreamReadMessage.PartitionSessionStatusResponse partition_session_status_response = 6;
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusResponseOrBuilder getPartitionSessionStatusResponseOrBuilder() {
        if (serverMessageCase_ == 6) {
           return (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusResponse) serverMessage_;
        }
        return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusResponse.getDefaultInstance();
      }

      public static final int UPDATE_TOKEN_RESPONSE_FIELD_NUMBER = 7;
      /**
       * .Ydb.Topic.UpdateTokenResponse update_token_response = 7;
       * @return Whether the updateTokenResponse field is set.
       */
      @java.lang.Override
      public boolean hasUpdateTokenResponse() {
        return serverMessageCase_ == 7;
      }
      /**
       * .Ydb.Topic.UpdateTokenResponse update_token_response = 7;
       * @return The updateTokenResponse.
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse getUpdateTokenResponse() {
        if (serverMessageCase_ == 7) {
           return (tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse) serverMessage_;
        }
        return tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse.getDefaultInstance();
      }
      /**
       * .Ydb.Topic.UpdateTokenResponse update_token_response = 7;
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.UpdateTokenResponseOrBuilder getUpdateTokenResponseOrBuilder() {
        if (serverMessageCase_ == 7) {
           return (tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse) serverMessage_;
        }
        return tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse.getDefaultInstance();
      }

      public static final int START_PARTITION_SESSION_REQUEST_FIELD_NUMBER = 8;
      /**
       * 
       * Server commands.
       * 
       *
       * .Ydb.Topic.StreamReadMessage.StartPartitionSessionRequest start_partition_session_request = 8;
       * @return Whether the startPartitionSessionRequest field is set.
       */
      @java.lang.Override
      public boolean hasStartPartitionSessionRequest() {
        return serverMessageCase_ == 8;
      }
      /**
       * 
       * Server commands.
       * 
       *
       * .Ydb.Topic.StreamReadMessage.StartPartitionSessionRequest start_partition_session_request = 8;
       * @return The startPartitionSessionRequest.
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest getStartPartitionSessionRequest() {
        if (serverMessageCase_ == 8) {
           return (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest) serverMessage_;
        }
        return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest.getDefaultInstance();
      }
      /**
       * 
       * Server commands.
       * 
       *
       * .Ydb.Topic.StreamReadMessage.StartPartitionSessionRequest start_partition_session_request = 8;
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequestOrBuilder getStartPartitionSessionRequestOrBuilder() {
        if (serverMessageCase_ == 8) {
           return (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest) serverMessage_;
        }
        return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest.getDefaultInstance();
      }

      public static final int STOP_PARTITION_SESSION_REQUEST_FIELD_NUMBER = 9;
      /**
       * .Ydb.Topic.StreamReadMessage.StopPartitionSessionRequest stop_partition_session_request = 9;
       * @return Whether the stopPartitionSessionRequest field is set.
       */
      @java.lang.Override
      public boolean hasStopPartitionSessionRequest() {
        return serverMessageCase_ == 9;
      }
      /**
       * .Ydb.Topic.StreamReadMessage.StopPartitionSessionRequest stop_partition_session_request = 9;
       * @return The stopPartitionSessionRequest.
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest getStopPartitionSessionRequest() {
        if (serverMessageCase_ == 9) {
           return (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest) serverMessage_;
        }
        return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest.getDefaultInstance();
      }
      /**
       * .Ydb.Topic.StreamReadMessage.StopPartitionSessionRequest stop_partition_session_request = 9;
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequestOrBuilder getStopPartitionSessionRequestOrBuilder() {
        if (serverMessageCase_ == 9) {
           return (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest) serverMessage_;
        }
        return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest.getDefaultInstance();
      }

      public static final int UPDATE_PARTITION_SESSION_FIELD_NUMBER = 10;
      /**
       * .Ydb.Topic.StreamReadMessage.UpdatePartitionSession update_partition_session = 10;
       * @return Whether the updatePartitionSession field is set.
       */
      @java.lang.Override
      public boolean hasUpdatePartitionSession() {
        return serverMessageCase_ == 10;
      }
      /**
       * .Ydb.Topic.StreamReadMessage.UpdatePartitionSession update_partition_session = 10;
       * @return The updatePartitionSession.
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSession getUpdatePartitionSession() {
        if (serverMessageCase_ == 10) {
           return (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSession) serverMessage_;
        }
        return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSession.getDefaultInstance();
      }
      /**
       * .Ydb.Topic.StreamReadMessage.UpdatePartitionSession update_partition_session = 10;
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSessionOrBuilder getUpdatePartitionSessionOrBuilder() {
        if (serverMessageCase_ == 10) {
           return (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSession) serverMessage_;
        }
        return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSession.getDefaultInstance();
      }

      private byte memoizedIsInitialized = -1;
      @java.lang.Override
      public final boolean isInitialized() {
        byte isInitialized = memoizedIsInitialized;
        if (isInitialized == 1) return true;
        if (isInitialized == 0) return false;

        memoizedIsInitialized = 1;
        return true;
      }

      @java.lang.Override
      public void writeTo(com.google.protobuf.CodedOutputStream output)
                          throws java.io.IOException {
        if (status_ != tech.ydb.proto.StatusCodesProtos.StatusIds.StatusCode.STATUS_CODE_UNSPECIFIED.getNumber()) {
          output.writeEnum(1, status_);
        }
        for (int i = 0; i < issues_.size(); i++) {
          output.writeMessage(2, issues_.get(i));
        }
        if (serverMessageCase_ == 3) {
          output.writeMessage(3, (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitResponse) serverMessage_);
        }
        if (serverMessageCase_ == 4) {
          output.writeMessage(4, (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse) serverMessage_);
        }
        if (serverMessageCase_ == 5) {
          output.writeMessage(5, (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse) serverMessage_);
        }
        if (serverMessageCase_ == 6) {
          output.writeMessage(6, (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusResponse) serverMessage_);
        }
        if (serverMessageCase_ == 7) {
          output.writeMessage(7, (tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse) serverMessage_);
        }
        if (serverMessageCase_ == 8) {
          output.writeMessage(8, (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest) serverMessage_);
        }
        if (serverMessageCase_ == 9) {
          output.writeMessage(9, (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest) serverMessage_);
        }
        if (serverMessageCase_ == 10) {
          output.writeMessage(10, (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSession) serverMessage_);
        }
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      /**
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       *     ReadResponse - portion of data.
       *     CommitOffsetResponse - acknowledgment for commit.
       *     PartitionSessionStatusResponse - server response with partition session status.
       *     UpdateTokenResponse - acknowledgment of token update.
       *
       *     StartPartitionSessionRequest - command from server to create a partition session.
       *     StopPartitionSessionRequest - command from server to destroy a partition session.
       *     UpdatePartitionSession - command from server to update a partition session.
       * 
       *
       * Protobuf type {@code Ydb.Topic.StreamReadMessage.FromServer}
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                default: {
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          onChanged();
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         * @return This builder for chaining.
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          bitField0_ |= 0x00000001;
          onChanged();
          return this;
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        /**
         * 
         * Server status of response.
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         * @return The status.
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          tech.ydb.proto.StatusCodesProtos.StatusIds.StatusCode result = tech.ydb.proto.StatusCodesProtos.StatusIds.StatusCode.forNumber(status_);
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         * @return This builder for chaining.
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          status_ = 0;
          onChanged();
          return this;
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        }

        private com.google.protobuf.RepeatedFieldBuilderV3<
            tech.ydb.proto.YdbIssueMessage.IssueMessage, tech.ydb.proto.YdbIssueMessage.IssueMessage.Builder, tech.ydb.proto.YdbIssueMessage.IssueMessageOrBuilder> issuesBuilder_;

        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public java.util.List getIssuesList() {
          if (issuesBuilder_ == null) {
            return java.util.Collections.unmodifiableList(issues_);
          } else {
            return issuesBuilder_.getMessageList();
          }
        }
        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public int getIssuesCount() {
          if (issuesBuilder_ == null) {
            return issues_.size();
          } else {
            return issuesBuilder_.getCount();
          }
        }
        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public tech.ydb.proto.YdbIssueMessage.IssueMessage getIssues(int index) {
          if (issuesBuilder_ == null) {
            return issues_.get(index);
          } else {
            return issuesBuilder_.getMessage(index);
          }
        }
        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public Builder setIssues(
            int index, tech.ydb.proto.YdbIssueMessage.IssueMessage value) {
          if (issuesBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            ensureIssuesIsMutable();
            issues_.set(index, value);
            onChanged();
          } else {
            issuesBuilder_.setMessage(index, value);
          }
          return this;
        }
        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public Builder setIssues(
            int index, tech.ydb.proto.YdbIssueMessage.IssueMessage.Builder builderForValue) {
          if (issuesBuilder_ == null) {
            ensureIssuesIsMutable();
            issues_.set(index, builderForValue.build());
            onChanged();
          } else {
            issuesBuilder_.setMessage(index, builderForValue.build());
          }
          return this;
        }
        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public Builder addIssues(tech.ydb.proto.YdbIssueMessage.IssueMessage value) {
          if (issuesBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            ensureIssuesIsMutable();
            issues_.add(value);
            onChanged();
          } else {
            issuesBuilder_.addMessage(value);
          }
          return this;
        }
        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public Builder addIssues(
            int index, tech.ydb.proto.YdbIssueMessage.IssueMessage value) {
          if (issuesBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            ensureIssuesIsMutable();
            issues_.add(index, value);
            onChanged();
          } else {
            issuesBuilder_.addMessage(index, value);
          }
          return this;
        }
        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public Builder addIssues(
            tech.ydb.proto.YdbIssueMessage.IssueMessage.Builder builderForValue) {
          if (issuesBuilder_ == null) {
            ensureIssuesIsMutable();
            issues_.add(builderForValue.build());
            onChanged();
          } else {
            issuesBuilder_.addMessage(builderForValue.build());
          }
          return this;
        }
        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public Builder addIssues(
            int index, tech.ydb.proto.YdbIssueMessage.IssueMessage.Builder builderForValue) {
          if (issuesBuilder_ == null) {
            ensureIssuesIsMutable();
            issues_.add(index, builderForValue.build());
            onChanged();
          } else {
            issuesBuilder_.addMessage(index, builderForValue.build());
          }
          return this;
        }
        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public Builder addAllIssues(
            java.lang.Iterable values) {
          if (issuesBuilder_ == null) {
            ensureIssuesIsMutable();
            com.google.protobuf.AbstractMessageLite.Builder.addAll(
                values, issues_);
            onChanged();
          } else {
            issuesBuilder_.addAllMessages(values);
          }
          return this;
        }
        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public Builder clearIssues() {
          if (issuesBuilder_ == null) {
            issues_ = java.util.Collections.emptyList();
            bitField0_ = (bitField0_ & ~0x00000002);
            onChanged();
          } else {
            issuesBuilder_.clear();
          }
          return this;
        }
        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public Builder removeIssues(int index) {
          if (issuesBuilder_ == null) {
            ensureIssuesIsMutable();
            issues_.remove(index);
            onChanged();
          } else {
            issuesBuilder_.remove(index);
          }
          return this;
        }
        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public tech.ydb.proto.YdbIssueMessage.IssueMessage.Builder getIssuesBuilder(
            int index) {
          return getIssuesFieldBuilder().getBuilder(index);
        }
        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public tech.ydb.proto.YdbIssueMessage.IssueMessageOrBuilder getIssuesOrBuilder(
            int index) {
          if (issuesBuilder_ == null) {
            return issues_.get(index);  } else {
            return issuesBuilder_.getMessageOrBuilder(index);
          }
        }
        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public java.util.List 
             getIssuesOrBuilderList() {
          if (issuesBuilder_ != null) {
            return issuesBuilder_.getMessageOrBuilderList();
          } else {
            return java.util.Collections.unmodifiableList(issues_);
          }
        }
        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public tech.ydb.proto.YdbIssueMessage.IssueMessage.Builder addIssuesBuilder() {
          return getIssuesFieldBuilder().addBuilder(
              tech.ydb.proto.YdbIssueMessage.IssueMessage.getDefaultInstance());
        }
        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public tech.ydb.proto.YdbIssueMessage.IssueMessage.Builder addIssuesBuilder(
            int index) {
          return getIssuesFieldBuilder().addBuilder(
              index, tech.ydb.proto.YdbIssueMessage.IssueMessage.getDefaultInstance());
        }
        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public java.util.List 
             getIssuesBuilderList() {
          return getIssuesFieldBuilder().getBuilderList();
        }
        private com.google.protobuf.RepeatedFieldBuilderV3<
            tech.ydb.proto.YdbIssueMessage.IssueMessage, tech.ydb.proto.YdbIssueMessage.IssueMessage.Builder, tech.ydb.proto.YdbIssueMessage.IssueMessageOrBuilder> 
            getIssuesFieldBuilder() {
          if (issuesBuilder_ == null) {
            issuesBuilder_ = new com.google.protobuf.RepeatedFieldBuilderV3<
                tech.ydb.proto.YdbIssueMessage.IssueMessage, tech.ydb.proto.YdbIssueMessage.IssueMessage.Builder, tech.ydb.proto.YdbIssueMessage.IssueMessageOrBuilder>(
                    issues_,
                    ((bitField0_ & 0x00000002) != 0),
                    getParentForChildren(),
                    isClean());
            issues_ = null;
          }
          return issuesBuilder_;
        }

        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitResponse, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitResponse.Builder, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitResponseOrBuilder> initResponseBuilder_;
        /**
         * 
         * Responses to respective client requests.
         * 
         *
         * .Ydb.Topic.StreamReadMessage.InitResponse init_response = 3;
         * @return Whether the initResponse field is set.
         */
        @java.lang.Override
        public boolean hasInitResponse() {
          return serverMessageCase_ == 3;
        }
        /**
         * 
         * Responses to respective client requests.
         * 
         *
         * .Ydb.Topic.StreamReadMessage.InitResponse init_response = 3;
         * @return The initResponse.
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitResponse getInitResponse() {
          if (initResponseBuilder_ == null) {
            if (serverMessageCase_ == 3) {
              return (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitResponse) serverMessage_;
            }
            return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitResponse.getDefaultInstance();
          } else {
            if (serverMessageCase_ == 3) {
              return initResponseBuilder_.getMessage();
            }
            return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitResponse.getDefaultInstance();
          }
        }
        /**
         * 
         * Responses to respective client requests.
         * 
         *
         * .Ydb.Topic.StreamReadMessage.InitResponse init_response = 3;
         */
        public Builder setInitResponse(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitResponse value) {
          if (initResponseBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            serverMessage_ = value;
            onChanged();
          } else {
            initResponseBuilder_.setMessage(value);
          }
          serverMessageCase_ = 3;
          return this;
        }
        /**
         * 
         * Responses to respective client requests.
         * 
         *
         * .Ydb.Topic.StreamReadMessage.InitResponse init_response = 3;
         */
        public Builder setInitResponse(
            tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitResponse.Builder builderForValue) {
          if (initResponseBuilder_ == null) {
            serverMessage_ = builderForValue.build();
            onChanged();
          } else {
            initResponseBuilder_.setMessage(builderForValue.build());
          }
          serverMessageCase_ = 3;
          return this;
        }
        /**
         * 
         * Responses to respective client requests.
         * 
         *
         * .Ydb.Topic.StreamReadMessage.InitResponse init_response = 3;
         */
        public Builder mergeInitResponse(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitResponse value) {
          if (initResponseBuilder_ == null) {
            if (serverMessageCase_ == 3 &&
                serverMessage_ != tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitResponse.getDefaultInstance()) {
              serverMessage_ = tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitResponse.newBuilder((tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitResponse) serverMessage_)
                  .mergeFrom(value).buildPartial();
            } else {
              serverMessage_ = value;
            }
            onChanged();
          } else {
            if (serverMessageCase_ == 3) {
              initResponseBuilder_.mergeFrom(value);
            } else {
              initResponseBuilder_.setMessage(value);
            }
          }
          serverMessageCase_ = 3;
          return this;
        }
        /**
         * 
         * Responses to respective client requests.
         * 
         *
         * .Ydb.Topic.StreamReadMessage.InitResponse init_response = 3;
         */
        public Builder clearInitResponse() {
          if (initResponseBuilder_ == null) {
            if (serverMessageCase_ == 3) {
              serverMessageCase_ = 0;
              serverMessage_ = null;
              onChanged();
            }
          } else {
            if (serverMessageCase_ == 3) {
              serverMessageCase_ = 0;
              serverMessage_ = null;
            }
            initResponseBuilder_.clear();
          }
          return this;
        }
        /**
         * 
         * Responses to respective client requests.
         * 
         *
         * .Ydb.Topic.StreamReadMessage.InitResponse init_response = 3;
         */
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitResponse.Builder getInitResponseBuilder() {
          return getInitResponseFieldBuilder().getBuilder();
        }
        /**
         * 
         * Responses to respective client requests.
         * 
         *
         * .Ydb.Topic.StreamReadMessage.InitResponse init_response = 3;
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitResponseOrBuilder getInitResponseOrBuilder() {
          if ((serverMessageCase_ == 3) && (initResponseBuilder_ != null)) {
            return initResponseBuilder_.getMessageOrBuilder();
          } else {
            if (serverMessageCase_ == 3) {
              return (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitResponse) serverMessage_;
            }
            return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitResponse.getDefaultInstance();
          }
        }
        /**
         * 
         * Responses to respective client requests.
         * 
         *
         * .Ydb.Topic.StreamReadMessage.InitResponse init_response = 3;
         */
        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitResponse, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitResponse.Builder, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitResponseOrBuilder> 
            getInitResponseFieldBuilder() {
          if (initResponseBuilder_ == null) {
            if (!(serverMessageCase_ == 3)) {
              serverMessage_ = tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitResponse.getDefaultInstance();
            }
            initResponseBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
                tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitResponse, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitResponse.Builder, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitResponseOrBuilder>(
                    (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitResponse) serverMessage_,
                    getParentForChildren(),
                    isClean());
            serverMessage_ = null;
          }
          serverMessageCase_ = 3;
          onChanged();
          return initResponseBuilder_;
        }

        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.Builder, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponseOrBuilder> readResponseBuilder_;
        /**
         * .Ydb.Topic.StreamReadMessage.ReadResponse read_response = 4;
         * @return Whether the readResponse field is set.
         */
        @java.lang.Override
        public boolean hasReadResponse() {
          return serverMessageCase_ == 4;
        }
        /**
         * .Ydb.Topic.StreamReadMessage.ReadResponse read_response = 4;
         * @return The readResponse.
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse getReadResponse() {
          if (readResponseBuilder_ == null) {
            if (serverMessageCase_ == 4) {
              return (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse) serverMessage_;
            }
            return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.getDefaultInstance();
          } else {
            if (serverMessageCase_ == 4) {
              return readResponseBuilder_.getMessage();
            }
            return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.getDefaultInstance();
          }
        }
        /**
         * .Ydb.Topic.StreamReadMessage.ReadResponse read_response = 4;
         */
        public Builder setReadResponse(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse value) {
          if (readResponseBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            serverMessage_ = value;
            onChanged();
          } else {
            readResponseBuilder_.setMessage(value);
          }
          serverMessageCase_ = 4;
          return this;
        }
        /**
         * .Ydb.Topic.StreamReadMessage.ReadResponse read_response = 4;
         */
        public Builder setReadResponse(
            tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.Builder builderForValue) {
          if (readResponseBuilder_ == null) {
            serverMessage_ = builderForValue.build();
            onChanged();
          } else {
            readResponseBuilder_.setMessage(builderForValue.build());
          }
          serverMessageCase_ = 4;
          return this;
        }
        /**
         * .Ydb.Topic.StreamReadMessage.ReadResponse read_response = 4;
         */
        public Builder mergeReadResponse(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse value) {
          if (readResponseBuilder_ == null) {
            if (serverMessageCase_ == 4 &&
                serverMessage_ != tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.getDefaultInstance()) {
              serverMessage_ = tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.newBuilder((tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse) serverMessage_)
                  .mergeFrom(value).buildPartial();
            } else {
              serverMessage_ = value;
            }
            onChanged();
          } else {
            if (serverMessageCase_ == 4) {
              readResponseBuilder_.mergeFrom(value);
            } else {
              readResponseBuilder_.setMessage(value);
            }
          }
          serverMessageCase_ = 4;
          return this;
        }
        /**
         * .Ydb.Topic.StreamReadMessage.ReadResponse read_response = 4;
         */
        public Builder clearReadResponse() {
          if (readResponseBuilder_ == null) {
            if (serverMessageCase_ == 4) {
              serverMessageCase_ = 0;
              serverMessage_ = null;
              onChanged();
            }
          } else {
            if (serverMessageCase_ == 4) {
              serverMessageCase_ = 0;
              serverMessage_ = null;
            }
            readResponseBuilder_.clear();
          }
          return this;
        }
        /**
         * .Ydb.Topic.StreamReadMessage.ReadResponse read_response = 4;
         */
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.Builder getReadResponseBuilder() {
          return getReadResponseFieldBuilder().getBuilder();
        }
        /**
         * .Ydb.Topic.StreamReadMessage.ReadResponse read_response = 4;
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponseOrBuilder getReadResponseOrBuilder() {
          if ((serverMessageCase_ == 4) && (readResponseBuilder_ != null)) {
            return readResponseBuilder_.getMessageOrBuilder();
          } else {
            if (serverMessageCase_ == 4) {
              return (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse) serverMessage_;
            }
            return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.getDefaultInstance();
          }
        }
        /**
         * .Ydb.Topic.StreamReadMessage.ReadResponse read_response = 4;
         */
        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.Builder, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponseOrBuilder> 
            getReadResponseFieldBuilder() {
          if (readResponseBuilder_ == null) {
            if (!(serverMessageCase_ == 4)) {
              serverMessage_ = tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.getDefaultInstance();
            }
            readResponseBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
                tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.Builder, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponseOrBuilder>(
                    (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse) serverMessage_,
                    getParentForChildren(),
                    isClean());
            serverMessage_ = null;
          }
          serverMessageCase_ = 4;
          onChanged();
          return readResponseBuilder_;
        }

        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.Builder, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponseOrBuilder> commitOffsetResponseBuilder_;
        /**
         * .Ydb.Topic.StreamReadMessage.CommitOffsetResponse commit_offset_response = 5;
         * @return Whether the commitOffsetResponse field is set.
         */
        @java.lang.Override
        public boolean hasCommitOffsetResponse() {
          return serverMessageCase_ == 5;
        }
        /**
         * .Ydb.Topic.StreamReadMessage.CommitOffsetResponse commit_offset_response = 5;
         * @return The commitOffsetResponse.
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse getCommitOffsetResponse() {
          if (commitOffsetResponseBuilder_ == null) {
            if (serverMessageCase_ == 5) {
              return (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse) serverMessage_;
            }
            return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.getDefaultInstance();
          } else {
            if (serverMessageCase_ == 5) {
              return commitOffsetResponseBuilder_.getMessage();
            }
            return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.getDefaultInstance();
          }
        }
        /**
         * .Ydb.Topic.StreamReadMessage.CommitOffsetResponse commit_offset_response = 5;
         */
        public Builder setCommitOffsetResponse(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse value) {
          if (commitOffsetResponseBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            serverMessage_ = value;
            onChanged();
          } else {
            commitOffsetResponseBuilder_.setMessage(value);
          }
          serverMessageCase_ = 5;
          return this;
        }
        /**
         * .Ydb.Topic.StreamReadMessage.CommitOffsetResponse commit_offset_response = 5;
         */
        public Builder setCommitOffsetResponse(
            tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.Builder builderForValue) {
          if (commitOffsetResponseBuilder_ == null) {
            serverMessage_ = builderForValue.build();
            onChanged();
          } else {
            commitOffsetResponseBuilder_.setMessage(builderForValue.build());
          }
          serverMessageCase_ = 5;
          return this;
        }
        /**
         * .Ydb.Topic.StreamReadMessage.CommitOffsetResponse commit_offset_response = 5;
         */
        public Builder mergeCommitOffsetResponse(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse value) {
          if (commitOffsetResponseBuilder_ == null) {
            if (serverMessageCase_ == 5 &&
                serverMessage_ != tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.getDefaultInstance()) {
              serverMessage_ = tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.newBuilder((tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse) serverMessage_)
                  .mergeFrom(value).buildPartial();
            } else {
              serverMessage_ = value;
            }
            onChanged();
          } else {
            if (serverMessageCase_ == 5) {
              commitOffsetResponseBuilder_.mergeFrom(value);
            } else {
              commitOffsetResponseBuilder_.setMessage(value);
            }
          }
          serverMessageCase_ = 5;
          return this;
        }
        /**
         * .Ydb.Topic.StreamReadMessage.CommitOffsetResponse commit_offset_response = 5;
         */
        public Builder clearCommitOffsetResponse() {
          if (commitOffsetResponseBuilder_ == null) {
            if (serverMessageCase_ == 5) {
              serverMessageCase_ = 0;
              serverMessage_ = null;
              onChanged();
            }
          } else {
            if (serverMessageCase_ == 5) {
              serverMessageCase_ = 0;
              serverMessage_ = null;
            }
            commitOffsetResponseBuilder_.clear();
          }
          return this;
        }
        /**
         * .Ydb.Topic.StreamReadMessage.CommitOffsetResponse commit_offset_response = 5;
         */
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.Builder getCommitOffsetResponseBuilder() {
          return getCommitOffsetResponseFieldBuilder().getBuilder();
        }
        /**
         * .Ydb.Topic.StreamReadMessage.CommitOffsetResponse commit_offset_response = 5;
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponseOrBuilder getCommitOffsetResponseOrBuilder() {
          if ((serverMessageCase_ == 5) && (commitOffsetResponseBuilder_ != null)) {
            return commitOffsetResponseBuilder_.getMessageOrBuilder();
          } else {
            if (serverMessageCase_ == 5) {
              return (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse) serverMessage_;
            }
            return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.getDefaultInstance();
          }
        }
        /**
         * .Ydb.Topic.StreamReadMessage.CommitOffsetResponse commit_offset_response = 5;
         */
        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.Builder, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponseOrBuilder> 
            getCommitOffsetResponseFieldBuilder() {
          if (commitOffsetResponseBuilder_ == null) {
            if (!(serverMessageCase_ == 5)) {
              serverMessage_ = tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.getDefaultInstance();
            }
            commitOffsetResponseBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
                tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.Builder, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponseOrBuilder>(
                    (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse) serverMessage_,
                    getParentForChildren(),
                    isClean());
            serverMessage_ = null;
          }
          serverMessageCase_ = 5;
          onChanged();
          return commitOffsetResponseBuilder_;
        }

        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusResponse, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusResponse.Builder, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusResponseOrBuilder> partitionSessionStatusResponseBuilder_;
        /**
         * .Ydb.Topic.StreamReadMessage.PartitionSessionStatusResponse partition_session_status_response = 6;
         * @return Whether the partitionSessionStatusResponse field is set.
         */
        @java.lang.Override
        public boolean hasPartitionSessionStatusResponse() {
          return serverMessageCase_ == 6;
        }
        /**
         * .Ydb.Topic.StreamReadMessage.PartitionSessionStatusResponse partition_session_status_response = 6;
         * @return The partitionSessionStatusResponse.
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusResponse getPartitionSessionStatusResponse() {
          if (partitionSessionStatusResponseBuilder_ == null) {
            if (serverMessageCase_ == 6) {
              return (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusResponse) serverMessage_;
            }
            return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusResponse.getDefaultInstance();
          } else {
            if (serverMessageCase_ == 6) {
              return partitionSessionStatusResponseBuilder_.getMessage();
            }
            return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusResponse.getDefaultInstance();
          }
        }
        /**
         * .Ydb.Topic.StreamReadMessage.PartitionSessionStatusResponse partition_session_status_response = 6;
         */
        public Builder setPartitionSessionStatusResponse(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusResponse value) {
          if (partitionSessionStatusResponseBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            serverMessage_ = value;
            onChanged();
          } else {
            partitionSessionStatusResponseBuilder_.setMessage(value);
          }
          serverMessageCase_ = 6;
          return this;
        }
        /**
         * .Ydb.Topic.StreamReadMessage.PartitionSessionStatusResponse partition_session_status_response = 6;
         */
        public Builder setPartitionSessionStatusResponse(
            tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusResponse.Builder builderForValue) {
          if (partitionSessionStatusResponseBuilder_ == null) {
            serverMessage_ = builderForValue.build();
            onChanged();
          } else {
            partitionSessionStatusResponseBuilder_.setMessage(builderForValue.build());
          }
          serverMessageCase_ = 6;
          return this;
        }
        /**
         * .Ydb.Topic.StreamReadMessage.PartitionSessionStatusResponse partition_session_status_response = 6;
         */
        public Builder mergePartitionSessionStatusResponse(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusResponse value) {
          if (partitionSessionStatusResponseBuilder_ == null) {
            if (serverMessageCase_ == 6 &&
                serverMessage_ != tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusResponse.getDefaultInstance()) {
              serverMessage_ = tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusResponse.newBuilder((tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusResponse) serverMessage_)
                  .mergeFrom(value).buildPartial();
            } else {
              serverMessage_ = value;
            }
            onChanged();
          } else {
            if (serverMessageCase_ == 6) {
              partitionSessionStatusResponseBuilder_.mergeFrom(value);
            } else {
              partitionSessionStatusResponseBuilder_.setMessage(value);
            }
          }
          serverMessageCase_ = 6;
          return this;
        }
        /**
         * .Ydb.Topic.StreamReadMessage.PartitionSessionStatusResponse partition_session_status_response = 6;
         */
        public Builder clearPartitionSessionStatusResponse() {
          if (partitionSessionStatusResponseBuilder_ == null) {
            if (serverMessageCase_ == 6) {
              serverMessageCase_ = 0;
              serverMessage_ = null;
              onChanged();
            }
          } else {
            if (serverMessageCase_ == 6) {
              serverMessageCase_ = 0;
              serverMessage_ = null;
            }
            partitionSessionStatusResponseBuilder_.clear();
          }
          return this;
        }
        /**
         * .Ydb.Topic.StreamReadMessage.PartitionSessionStatusResponse partition_session_status_response = 6;
         */
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusResponse.Builder getPartitionSessionStatusResponseBuilder() {
          return getPartitionSessionStatusResponseFieldBuilder().getBuilder();
        }
        /**
         * .Ydb.Topic.StreamReadMessage.PartitionSessionStatusResponse partition_session_status_response = 6;
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusResponseOrBuilder getPartitionSessionStatusResponseOrBuilder() {
          if ((serverMessageCase_ == 6) && (partitionSessionStatusResponseBuilder_ != null)) {
            return partitionSessionStatusResponseBuilder_.getMessageOrBuilder();
          } else {
            if (serverMessageCase_ == 6) {
              return (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusResponse) serverMessage_;
            }
            return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusResponse.getDefaultInstance();
          }
        }
        /**
         * .Ydb.Topic.StreamReadMessage.PartitionSessionStatusResponse partition_session_status_response = 6;
         */
        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusResponse, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusResponse.Builder, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusResponseOrBuilder> 
            getPartitionSessionStatusResponseFieldBuilder() {
          if (partitionSessionStatusResponseBuilder_ == null) {
            if (!(serverMessageCase_ == 6)) {
              serverMessage_ = tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusResponse.getDefaultInstance();
            }
            partitionSessionStatusResponseBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
                tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusResponse, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusResponse.Builder, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusResponseOrBuilder>(
                    (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusResponse) serverMessage_,
                    getParentForChildren(),
                    isClean());
            serverMessage_ = null;
          }
          serverMessageCase_ = 6;
          onChanged();
          return partitionSessionStatusResponseBuilder_;
        }

        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse, tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse.Builder, tech.ydb.proto.topic.YdbTopic.UpdateTokenResponseOrBuilder> updateTokenResponseBuilder_;
        /**
         * .Ydb.Topic.UpdateTokenResponse update_token_response = 7;
         * @return Whether the updateTokenResponse field is set.
         */
        @java.lang.Override
        public boolean hasUpdateTokenResponse() {
          return serverMessageCase_ == 7;
        }
        /**
         * .Ydb.Topic.UpdateTokenResponse update_token_response = 7;
         * @return The updateTokenResponse.
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse getUpdateTokenResponse() {
          if (updateTokenResponseBuilder_ == null) {
            if (serverMessageCase_ == 7) {
              return (tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse) serverMessage_;
            }
            return tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse.getDefaultInstance();
          } else {
            if (serverMessageCase_ == 7) {
              return updateTokenResponseBuilder_.getMessage();
            }
            return tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse.getDefaultInstance();
          }
        }
        /**
         * .Ydb.Topic.UpdateTokenResponse update_token_response = 7;
         */
        public Builder setUpdateTokenResponse(tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse value) {
          if (updateTokenResponseBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            serverMessage_ = value;
            onChanged();
          } else {
            updateTokenResponseBuilder_.setMessage(value);
          }
          serverMessageCase_ = 7;
          return this;
        }
        /**
         * .Ydb.Topic.UpdateTokenResponse update_token_response = 7;
         */
        public Builder setUpdateTokenResponse(
            tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse.Builder builderForValue) {
          if (updateTokenResponseBuilder_ == null) {
            serverMessage_ = builderForValue.build();
            onChanged();
          } else {
            updateTokenResponseBuilder_.setMessage(builderForValue.build());
          }
          serverMessageCase_ = 7;
          return this;
        }
        /**
         * .Ydb.Topic.UpdateTokenResponse update_token_response = 7;
         */
        public Builder mergeUpdateTokenResponse(tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse value) {
          if (updateTokenResponseBuilder_ == null) {
            if (serverMessageCase_ == 7 &&
                serverMessage_ != tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse.getDefaultInstance()) {
              serverMessage_ = tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse.newBuilder((tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse) serverMessage_)
                  .mergeFrom(value).buildPartial();
            } else {
              serverMessage_ = value;
            }
            onChanged();
          } else {
            if (serverMessageCase_ == 7) {
              updateTokenResponseBuilder_.mergeFrom(value);
            } else {
              updateTokenResponseBuilder_.setMessage(value);
            }
          }
          serverMessageCase_ = 7;
          return this;
        }
        /**
         * .Ydb.Topic.UpdateTokenResponse update_token_response = 7;
         */
        public Builder clearUpdateTokenResponse() {
          if (updateTokenResponseBuilder_ == null) {
            if (serverMessageCase_ == 7) {
              serverMessageCase_ = 0;
              serverMessage_ = null;
              onChanged();
            }
          } else {
            if (serverMessageCase_ == 7) {
              serverMessageCase_ = 0;
              serverMessage_ = null;
            }
            updateTokenResponseBuilder_.clear();
          }
          return this;
        }
        /**
         * .Ydb.Topic.UpdateTokenResponse update_token_response = 7;
         */
        public tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse.Builder getUpdateTokenResponseBuilder() {
          return getUpdateTokenResponseFieldBuilder().getBuilder();
        }
        /**
         * .Ydb.Topic.UpdateTokenResponse update_token_response = 7;
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.UpdateTokenResponseOrBuilder getUpdateTokenResponseOrBuilder() {
          if ((serverMessageCase_ == 7) && (updateTokenResponseBuilder_ != null)) {
            return updateTokenResponseBuilder_.getMessageOrBuilder();
          } else {
            if (serverMessageCase_ == 7) {
              return (tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse) serverMessage_;
            }
            return tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse.getDefaultInstance();
          }
        }
        /**
         * .Ydb.Topic.UpdateTokenResponse update_token_response = 7;
         */
        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse, tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse.Builder, tech.ydb.proto.topic.YdbTopic.UpdateTokenResponseOrBuilder> 
            getUpdateTokenResponseFieldBuilder() {
          if (updateTokenResponseBuilder_ == null) {
            if (!(serverMessageCase_ == 7)) {
              serverMessage_ = tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse.getDefaultInstance();
            }
            updateTokenResponseBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
                tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse, tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse.Builder, tech.ydb.proto.topic.YdbTopic.UpdateTokenResponseOrBuilder>(
                    (tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse) serverMessage_,
                    getParentForChildren(),
                    isClean());
            serverMessage_ = null;
          }
          serverMessageCase_ = 7;
          onChanged();
          return updateTokenResponseBuilder_;
        }

        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest.Builder, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequestOrBuilder> startPartitionSessionRequestBuilder_;
        /**
         * 
         * Server commands.
         * 
         *
         * .Ydb.Topic.StreamReadMessage.StartPartitionSessionRequest start_partition_session_request = 8;
         * @return Whether the startPartitionSessionRequest field is set.
         */
        @java.lang.Override
        public boolean hasStartPartitionSessionRequest() {
          return serverMessageCase_ == 8;
        }
        /**
         * 
         * Server commands.
         * 
         *
         * .Ydb.Topic.StreamReadMessage.StartPartitionSessionRequest start_partition_session_request = 8;
         * @return The startPartitionSessionRequest.
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest getStartPartitionSessionRequest() {
          if (startPartitionSessionRequestBuilder_ == null) {
            if (serverMessageCase_ == 8) {
              return (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest) serverMessage_;
            }
            return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest.getDefaultInstance();
          } else {
            if (serverMessageCase_ == 8) {
              return startPartitionSessionRequestBuilder_.getMessage();
            }
            return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest.getDefaultInstance();
          }
        }
        /**
         * 
         * Server commands.
         * 
         *
         * .Ydb.Topic.StreamReadMessage.StartPartitionSessionRequest start_partition_session_request = 8;
         */
        public Builder setStartPartitionSessionRequest(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest value) {
          if (startPartitionSessionRequestBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            serverMessage_ = value;
            onChanged();
          } else {
            startPartitionSessionRequestBuilder_.setMessage(value);
          }
          serverMessageCase_ = 8;
          return this;
        }
        /**
         * 
         * Server commands.
         * 
         *
         * .Ydb.Topic.StreamReadMessage.StartPartitionSessionRequest start_partition_session_request = 8;
         */
        public Builder setStartPartitionSessionRequest(
            tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest.Builder builderForValue) {
          if (startPartitionSessionRequestBuilder_ == null) {
            serverMessage_ = builderForValue.build();
            onChanged();
          } else {
            startPartitionSessionRequestBuilder_.setMessage(builderForValue.build());
          }
          serverMessageCase_ = 8;
          return this;
        }
        /**
         * 
         * Server commands.
         * 
         *
         * .Ydb.Topic.StreamReadMessage.StartPartitionSessionRequest start_partition_session_request = 8;
         */
        public Builder mergeStartPartitionSessionRequest(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest value) {
          if (startPartitionSessionRequestBuilder_ == null) {
            if (serverMessageCase_ == 8 &&
                serverMessage_ != tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest.getDefaultInstance()) {
              serverMessage_ = tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest.newBuilder((tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest) serverMessage_)
                  .mergeFrom(value).buildPartial();
            } else {
              serverMessage_ = value;
            }
            onChanged();
          } else {
            if (serverMessageCase_ == 8) {
              startPartitionSessionRequestBuilder_.mergeFrom(value);
            } else {
              startPartitionSessionRequestBuilder_.setMessage(value);
            }
          }
          serverMessageCase_ = 8;
          return this;
        }
        /**
         * 
         * Server commands.
         * 
         *
         * .Ydb.Topic.StreamReadMessage.StartPartitionSessionRequest start_partition_session_request = 8;
         */
        public Builder clearStartPartitionSessionRequest() {
          if (startPartitionSessionRequestBuilder_ == null) {
            if (serverMessageCase_ == 8) {
              serverMessageCase_ = 0;
              serverMessage_ = null;
              onChanged();
            }
          } else {
            if (serverMessageCase_ == 8) {
              serverMessageCase_ = 0;
              serverMessage_ = null;
            }
            startPartitionSessionRequestBuilder_.clear();
          }
          return this;
        }
        /**
         * 
         * Server commands.
         * 
         *
         * .Ydb.Topic.StreamReadMessage.StartPartitionSessionRequest start_partition_session_request = 8;
         */
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest.Builder getStartPartitionSessionRequestBuilder() {
          return getStartPartitionSessionRequestFieldBuilder().getBuilder();
        }
        /**
         * 
         * Server commands.
         * 
         *
         * .Ydb.Topic.StreamReadMessage.StartPartitionSessionRequest start_partition_session_request = 8;
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequestOrBuilder getStartPartitionSessionRequestOrBuilder() {
          if ((serverMessageCase_ == 8) && (startPartitionSessionRequestBuilder_ != null)) {
            return startPartitionSessionRequestBuilder_.getMessageOrBuilder();
          } else {
            if (serverMessageCase_ == 8) {
              return (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest) serverMessage_;
            }
            return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest.getDefaultInstance();
          }
        }
        /**
         * 
         * Server commands.
         * 
         *
         * .Ydb.Topic.StreamReadMessage.StartPartitionSessionRequest start_partition_session_request = 8;
         */
        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest.Builder, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequestOrBuilder> 
            getStartPartitionSessionRequestFieldBuilder() {
          if (startPartitionSessionRequestBuilder_ == null) {
            if (!(serverMessageCase_ == 8)) {
              serverMessage_ = tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest.getDefaultInstance();
            }
            startPartitionSessionRequestBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
                tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest.Builder, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequestOrBuilder>(
                    (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest) serverMessage_,
                    getParentForChildren(),
                    isClean());
            serverMessage_ = null;
          }
          serverMessageCase_ = 8;
          onChanged();
          return startPartitionSessionRequestBuilder_;
        }

        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest.Builder, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequestOrBuilder> stopPartitionSessionRequestBuilder_;
        /**
         * .Ydb.Topic.StreamReadMessage.StopPartitionSessionRequest stop_partition_session_request = 9;
         * @return Whether the stopPartitionSessionRequest field is set.
         */
        @java.lang.Override
        public boolean hasStopPartitionSessionRequest() {
          return serverMessageCase_ == 9;
        }
        /**
         * .Ydb.Topic.StreamReadMessage.StopPartitionSessionRequest stop_partition_session_request = 9;
         * @return The stopPartitionSessionRequest.
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest getStopPartitionSessionRequest() {
          if (stopPartitionSessionRequestBuilder_ == null) {
            if (serverMessageCase_ == 9) {
              return (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest) serverMessage_;
            }
            return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest.getDefaultInstance();
          } else {
            if (serverMessageCase_ == 9) {
              return stopPartitionSessionRequestBuilder_.getMessage();
            }
            return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest.getDefaultInstance();
          }
        }
        /**
         * .Ydb.Topic.StreamReadMessage.StopPartitionSessionRequest stop_partition_session_request = 9;
         */
        public Builder setStopPartitionSessionRequest(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest value) {
          if (stopPartitionSessionRequestBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            serverMessage_ = value;
            onChanged();
          } else {
            stopPartitionSessionRequestBuilder_.setMessage(value);
          }
          serverMessageCase_ = 9;
          return this;
        }
        /**
         * .Ydb.Topic.StreamReadMessage.StopPartitionSessionRequest stop_partition_session_request = 9;
         */
        public Builder setStopPartitionSessionRequest(
            tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest.Builder builderForValue) {
          if (stopPartitionSessionRequestBuilder_ == null) {
            serverMessage_ = builderForValue.build();
            onChanged();
          } else {
            stopPartitionSessionRequestBuilder_.setMessage(builderForValue.build());
          }
          serverMessageCase_ = 9;
          return this;
        }
        /**
         * .Ydb.Topic.StreamReadMessage.StopPartitionSessionRequest stop_partition_session_request = 9;
         */
        public Builder mergeStopPartitionSessionRequest(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest value) {
          if (stopPartitionSessionRequestBuilder_ == null) {
            if (serverMessageCase_ == 9 &&
                serverMessage_ != tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest.getDefaultInstance()) {
              serverMessage_ = tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest.newBuilder((tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest) serverMessage_)
                  .mergeFrom(value).buildPartial();
            } else {
              serverMessage_ = value;
            }
            onChanged();
          } else {
            if (serverMessageCase_ == 9) {
              stopPartitionSessionRequestBuilder_.mergeFrom(value);
            } else {
              stopPartitionSessionRequestBuilder_.setMessage(value);
            }
          }
          serverMessageCase_ = 9;
          return this;
        }
        /**
         * .Ydb.Topic.StreamReadMessage.StopPartitionSessionRequest stop_partition_session_request = 9;
         */
        public Builder clearStopPartitionSessionRequest() {
          if (stopPartitionSessionRequestBuilder_ == null) {
            if (serverMessageCase_ == 9) {
              serverMessageCase_ = 0;
              serverMessage_ = null;
              onChanged();
            }
          } else {
            if (serverMessageCase_ == 9) {
              serverMessageCase_ = 0;
              serverMessage_ = null;
            }
            stopPartitionSessionRequestBuilder_.clear();
          }
          return this;
        }
        /**
         * .Ydb.Topic.StreamReadMessage.StopPartitionSessionRequest stop_partition_session_request = 9;
         */
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest.Builder getStopPartitionSessionRequestBuilder() {
          return getStopPartitionSessionRequestFieldBuilder().getBuilder();
        }
        /**
         * .Ydb.Topic.StreamReadMessage.StopPartitionSessionRequest stop_partition_session_request = 9;
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequestOrBuilder getStopPartitionSessionRequestOrBuilder() {
          if ((serverMessageCase_ == 9) && (stopPartitionSessionRequestBuilder_ != null)) {
            return stopPartitionSessionRequestBuilder_.getMessageOrBuilder();
          } else {
            if (serverMessageCase_ == 9) {
              return (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest) serverMessage_;
            }
            return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest.getDefaultInstance();
          }
        }
        /**
         * .Ydb.Topic.StreamReadMessage.StopPartitionSessionRequest stop_partition_session_request = 9;
         */
        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest.Builder, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequestOrBuilder> 
            getStopPartitionSessionRequestFieldBuilder() {
          if (stopPartitionSessionRequestBuilder_ == null) {
            if (!(serverMessageCase_ == 9)) {
              serverMessage_ = tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest.getDefaultInstance();
            }
            stopPartitionSessionRequestBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
                tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest.Builder, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequestOrBuilder>(
                    (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest) serverMessage_,
                    getParentForChildren(),
                    isClean());
            serverMessage_ = null;
          }
          serverMessageCase_ = 9;
          onChanged();
          return stopPartitionSessionRequestBuilder_;
        }

        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSession, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSession.Builder, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSessionOrBuilder> updatePartitionSessionBuilder_;
        /**
         * .Ydb.Topic.StreamReadMessage.UpdatePartitionSession update_partition_session = 10;
         * @return Whether the updatePartitionSession field is set.
         */
        @java.lang.Override
        public boolean hasUpdatePartitionSession() {
          return serverMessageCase_ == 10;
        }
        /**
         * .Ydb.Topic.StreamReadMessage.UpdatePartitionSession update_partition_session = 10;
         * @return The updatePartitionSession.
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSession getUpdatePartitionSession() {
          if (updatePartitionSessionBuilder_ == null) {
            if (serverMessageCase_ == 10) {
              return (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSession) serverMessage_;
            }
            return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSession.getDefaultInstance();
          } else {
            if (serverMessageCase_ == 10) {
              return updatePartitionSessionBuilder_.getMessage();
            }
            return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSession.getDefaultInstance();
          }
        }
        /**
         * .Ydb.Topic.StreamReadMessage.UpdatePartitionSession update_partition_session = 10;
         */
        public Builder setUpdatePartitionSession(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSession value) {
          if (updatePartitionSessionBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            serverMessage_ = value;
            onChanged();
          } else {
            updatePartitionSessionBuilder_.setMessage(value);
          }
          serverMessageCase_ = 10;
          return this;
        }
        /**
         * .Ydb.Topic.StreamReadMessage.UpdatePartitionSession update_partition_session = 10;
         */
        public Builder setUpdatePartitionSession(
            tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSession.Builder builderForValue) {
          if (updatePartitionSessionBuilder_ == null) {
            serverMessage_ = builderForValue.build();
            onChanged();
          } else {
            updatePartitionSessionBuilder_.setMessage(builderForValue.build());
          }
          serverMessageCase_ = 10;
          return this;
        }
        /**
         * .Ydb.Topic.StreamReadMessage.UpdatePartitionSession update_partition_session = 10;
         */
        public Builder mergeUpdatePartitionSession(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSession value) {
          if (updatePartitionSessionBuilder_ == null) {
            if (serverMessageCase_ == 10 &&
                serverMessage_ != tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSession.getDefaultInstance()) {
              serverMessage_ = tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSession.newBuilder((tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSession) serverMessage_)
                  .mergeFrom(value).buildPartial();
            } else {
              serverMessage_ = value;
            }
            onChanged();
          } else {
            if (serverMessageCase_ == 10) {
              updatePartitionSessionBuilder_.mergeFrom(value);
            } else {
              updatePartitionSessionBuilder_.setMessage(value);
            }
          }
          serverMessageCase_ = 10;
          return this;
        }
        /**
         * .Ydb.Topic.StreamReadMessage.UpdatePartitionSession update_partition_session = 10;
         */
        public Builder clearUpdatePartitionSession() {
          if (updatePartitionSessionBuilder_ == null) {
            if (serverMessageCase_ == 10) {
              serverMessageCase_ = 0;
              serverMessage_ = null;
              onChanged();
            }
          } else {
            if (serverMessageCase_ == 10) {
              serverMessageCase_ = 0;
              serverMessage_ = null;
            }
            updatePartitionSessionBuilder_.clear();
          }
          return this;
        }
        /**
         * .Ydb.Topic.StreamReadMessage.UpdatePartitionSession update_partition_session = 10;
         */
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSession.Builder getUpdatePartitionSessionBuilder() {
          return getUpdatePartitionSessionFieldBuilder().getBuilder();
        }
        /**
         * .Ydb.Topic.StreamReadMessage.UpdatePartitionSession update_partition_session = 10;
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSessionOrBuilder getUpdatePartitionSessionOrBuilder() {
          if ((serverMessageCase_ == 10) && (updatePartitionSessionBuilder_ != null)) {
            return updatePartitionSessionBuilder_.getMessageOrBuilder();
          } else {
            if (serverMessageCase_ == 10) {
              return (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSession) serverMessage_;
            }
            return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSession.getDefaultInstance();
          }
        }
        /**
         * .Ydb.Topic.StreamReadMessage.UpdatePartitionSession update_partition_session = 10;
         */
        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSession, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSession.Builder, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSessionOrBuilder> 
            getUpdatePartitionSessionFieldBuilder() {
          if (updatePartitionSessionBuilder_ == null) {
            if (!(serverMessageCase_ == 10)) {
              serverMessage_ = tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSession.getDefaultInstance();
            }
            updatePartitionSessionBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
                tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSession, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSession.Builder, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSessionOrBuilder>(
                    (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSession) serverMessage_,
                    getParentForChildren(),
                    isClean());
            serverMessage_ = null;
          }
          serverMessageCase_ = 10;
          onChanged();
          return updatePartitionSessionBuilder_;
        }
        @java.lang.Override
        public final Builder setUnknownFields(
            final com.google.protobuf.UnknownFieldSet unknownFields) {
          return super.setUnknownFields(unknownFields);
        }

        @java.lang.Override
        public final Builder mergeUnknownFields(
            final com.google.protobuf.UnknownFieldSet unknownFields) {
          return super.mergeUnknownFields(unknownFields);
        }


        // @@protoc_insertion_point(builder_scope:Ydb.Topic.StreamReadMessage.FromServer)
      }

      // @@protoc_insertion_point(class_scope:Ydb.Topic.StreamReadMessage.FromServer)
      private static final tech.ydb.proto.topic.YdbTopic.StreamReadMessage.FromServer DEFAULT_INSTANCE;
      static {
        DEFAULT_INSTANCE = new tech.ydb.proto.topic.YdbTopic.StreamReadMessage.FromServer();
      }

      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.FromServer getDefaultInstance() {
        return DEFAULT_INSTANCE;
      }

      private static final com.google.protobuf.Parser
          PARSER = new com.google.protobuf.AbstractParser() {
        @java.lang.Override
        public FromServer parsePartialFrom(
            com.google.protobuf.CodedInputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws com.google.protobuf.InvalidProtocolBufferException {
          Builder builder = newBuilder();
          try {
            builder.mergeFrom(input, extensionRegistry);
          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
            throw e.setUnfinishedMessage(builder.buildPartial());
          } catch (com.google.protobuf.UninitializedMessageException e) {
            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
          } catch (java.io.IOException e) {
            throw new com.google.protobuf.InvalidProtocolBufferException(e)
                .setUnfinishedMessage(builder.buildPartial());
          }
          return builder.buildPartial();
        }
      };

      public static com.google.protobuf.Parser parser() {
        return PARSER;
      }

      @java.lang.Override
      public com.google.protobuf.Parser getParserForType() {
        return PARSER;
      }

      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.FromServer getDefaultInstanceForType() {
        return DEFAULT_INSTANCE;
      }

    }

    public interface InitRequestOrBuilder extends
        // @@protoc_insertion_point(interface_extends:Ydb.Topic.StreamReadMessage.InitRequest)
        com.google.protobuf.MessageOrBuilder {

      /**
       * 
       * Message that describes topic to read.
       * Topics that will be read by this session.
       * 
       *
       * repeated .Ydb.Topic.StreamReadMessage.InitRequest.TopicReadSettings topics_read_settings = 1;
       */
      java.util.List 
          getTopicsReadSettingsList();
      /**
       * 
       * Message that describes topic to read.
       * Topics that will be read by this session.
       * 
       *
       * repeated .Ydb.Topic.StreamReadMessage.InitRequest.TopicReadSettings topics_read_settings = 1;
       */
      tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest.TopicReadSettings getTopicsReadSettings(int index);
      /**
       * 
       * Message that describes topic to read.
       * Topics that will be read by this session.
       * 
       *
       * repeated .Ydb.Topic.StreamReadMessage.InitRequest.TopicReadSettings topics_read_settings = 1;
       */
      int getTopicsReadSettingsCount();
      /**
       * 
       * Message that describes topic to read.
       * Topics that will be read by this session.
       * 
       *
       * repeated .Ydb.Topic.StreamReadMessage.InitRequest.TopicReadSettings topics_read_settings = 1;
       */
      java.util.List 
          getTopicsReadSettingsOrBuilderList();
      /**
       * 
       * Message that describes topic to read.
       * Topics that will be read by this session.
       * 
       *
       * repeated .Ydb.Topic.StreamReadMessage.InitRequest.TopicReadSettings topics_read_settings = 1;
       */
      tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest.TopicReadSettingsOrBuilder getTopicsReadSettingsOrBuilder(
          int index);

      /**
       * 
       * Path of consumer that is used for reading by this session.
       * 
       *
       * string consumer = 2;
       * @return The consumer.
       */
      java.lang.String getConsumer();
      /**
       * 
       * Path of consumer that is used for reading by this session.
       * 
       *
       * string consumer = 2;
       * @return The bytes for consumer.
       */
      com.google.protobuf.ByteString
          getConsumerBytes();

      /**
       * 
       * Optional name. Will be shown in debug stat.
       * 
       *
       * string reader_name = 3;
       * @return The readerName.
       */
      java.lang.String getReaderName();
      /**
       * 
       * Optional name. Will be shown in debug stat.
       * 
       *
       * string reader_name = 3;
       * @return The bytes for readerName.
       */
      com.google.protobuf.ByteString
          getReaderNameBytes();

      /**
       * 
       * Direct reading from a partition node.
       * 
       *
       * bool direct_read = 4;
       * @return The directRead.
       */
      boolean getDirectRead();
    }
    /**
     * 
     * Handshake request.
     * 
     *
     * Protobuf type {@code Ydb.Topic.StreamReadMessage.InitRequest}
     */
    public static final class InitRequest extends
        com.google.protobuf.GeneratedMessageV3 implements
        // @@protoc_insertion_point(message_implements:Ydb.Topic.StreamReadMessage.InitRequest)
        InitRequestOrBuilder {
    private static final long serialVersionUID = 0L;
      // Use InitRequest.newBuilder() to construct.
      private InitRequest(com.google.protobuf.GeneratedMessageV3.Builder builder) {
        super(builder);
      }
      private InitRequest() {
        topicsReadSettings_ = java.util.Collections.emptyList();
        consumer_ = "";
        readerName_ = "";
      }

      @java.lang.Override
      @SuppressWarnings({"unused"})
      protected java.lang.Object newInstance(
          UnusedPrivateParameter unused) {
        return new InitRequest();
      }

      public static final com.google.protobuf.Descriptors.Descriptor
          getDescriptor() {
        return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamReadMessage_InitRequest_descriptor;
      }

      @java.lang.Override
      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
          internalGetFieldAccessorTable() {
        return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamReadMessage_InitRequest_fieldAccessorTable
            .ensureFieldAccessorsInitialized(
                tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest.class, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest.Builder.class);
      }

      public interface TopicReadSettingsOrBuilder extends
          // @@protoc_insertion_point(interface_extends:Ydb.Topic.StreamReadMessage.InitRequest.TopicReadSettings)
          com.google.protobuf.MessageOrBuilder {

        /**
         * 
         * Topic path.
         * 
         *
         * string path = 1;
         * @return The path.
         */
        java.lang.String getPath();
        /**
         * 
         * Topic path.
         * 
         *
         * string path = 1;
         * @return The bytes for path.
         */
        com.google.protobuf.ByteString
            getPathBytes();

        /**
         * 
         * Partitions that will be read by this session.
         * If list is empty - then session will read all partitions.
         * 
         *
         * repeated int64 partition_ids = 2;
         * @return A list containing the partitionIds.
         */
        java.util.List getPartitionIdsList();
        /**
         * 
         * Partitions that will be read by this session.
         * If list is empty - then session will read all partitions.
         * 
         *
         * repeated int64 partition_ids = 2;
         * @return The count of partitionIds.
         */
        int getPartitionIdsCount();
        /**
         * 
         * Partitions that will be read by this session.
         * If list is empty - then session will read all partitions.
         * 
         *
         * repeated int64 partition_ids = 2;
         * @param index The index of the element to return.
         * @return The partitionIds at the given index.
         */
        long getPartitionIds(int index);

        /**
         * 
         * Skip all messages that has write timestamp smaller than now - max_lag.
         * Zero means infinite lag.
         * 
         *
         * .google.protobuf.Duration max_lag = 3;
         * @return Whether the maxLag field is set.
         */
        boolean hasMaxLag();
        /**
         * 
         * Skip all messages that has write timestamp smaller than now - max_lag.
         * Zero means infinite lag.
         * 
         *
         * .google.protobuf.Duration max_lag = 3;
         * @return The maxLag.
         */
        com.google.protobuf.Duration getMaxLag();
        /**
         * 
         * Skip all messages that has write timestamp smaller than now - max_lag.
         * Zero means infinite lag.
         * 
         *
         * .google.protobuf.Duration max_lag = 3;
         */
        com.google.protobuf.DurationOrBuilder getMaxLagOrBuilder();

        /**
         * 
         * Read data only after this timestamp from this topic.
         * Read only messages with 'written_at' value greater or equal than this timestamp.
         * 
         *
         * .google.protobuf.Timestamp read_from = 4;
         * @return Whether the readFrom field is set.
         */
        boolean hasReadFrom();
        /**
         * 
         * Read data only after this timestamp from this topic.
         * Read only messages with 'written_at' value greater or equal than this timestamp.
         * 
         *
         * .google.protobuf.Timestamp read_from = 4;
         * @return The readFrom.
         */
        com.google.protobuf.Timestamp getReadFrom();
        /**
         * 
         * Read data only after this timestamp from this topic.
         * Read only messages with 'written_at' value greater or equal than this timestamp.
         * 
         *
         * .google.protobuf.Timestamp read_from = 4;
         */
        com.google.protobuf.TimestampOrBuilder getReadFromOrBuilder();
      }
      /**
       * Protobuf type {@code Ydb.Topic.StreamReadMessage.InitRequest.TopicReadSettings}
       */
      public static final class TopicReadSettings extends
          com.google.protobuf.GeneratedMessageV3 implements
          // @@protoc_insertion_point(message_implements:Ydb.Topic.StreamReadMessage.InitRequest.TopicReadSettings)
          TopicReadSettingsOrBuilder {
      private static final long serialVersionUID = 0L;
        // Use TopicReadSettings.newBuilder() to construct.
        private TopicReadSettings(com.google.protobuf.GeneratedMessageV3.Builder builder) {
          super(builder);
        }
        private TopicReadSettings() {
          path_ = "";
          partitionIds_ = emptyLongList();
        }

        @java.lang.Override
        @SuppressWarnings({"unused"})
        protected java.lang.Object newInstance(
            UnusedPrivateParameter unused) {
          return new TopicReadSettings();
        }

        public static final com.google.protobuf.Descriptors.Descriptor
            getDescriptor() {
          return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamReadMessage_InitRequest_TopicReadSettings_descriptor;
        }

        @java.lang.Override
        protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
            internalGetFieldAccessorTable() {
          return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamReadMessage_InitRequest_TopicReadSettings_fieldAccessorTable
              .ensureFieldAccessorsInitialized(
                  tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest.TopicReadSettings.class, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest.TopicReadSettings.Builder.class);
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        private int bitField0_;
        public static final int PATH_FIELD_NUMBER = 1;
        @SuppressWarnings("serial")
        private volatile java.lang.Object path_ = "";
        /**
         * 
         * Topic path.
         * 
         *
         * string path = 1;
         * @return The path.
         */
        @java.lang.Override
        public java.lang.String getPath() {
          java.lang.Object ref = path_;
          if (ref instanceof java.lang.String) {
            return (java.lang.String) ref;
          } else {
            com.google.protobuf.ByteString bs = 
                (com.google.protobuf.ByteString) ref;
            java.lang.String s = bs.toStringUtf8();
            path_ = s;
            return s;
          }
        }
        /**
         * 
         * Topic path.
         * 
         *
         * string path = 1;
         * @return The bytes for path.
         */
        @java.lang.Override
        public com.google.protobuf.ByteString
            getPathBytes() {
          java.lang.Object ref = path_;
          if (ref instanceof java.lang.String) {
            com.google.protobuf.ByteString b = 
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                    (java.lang.String) ref);
            path_ = b;
            return b;
          } else {
            return (com.google.protobuf.ByteString) ref;
          }
        }

        public static final int PARTITION_IDS_FIELD_NUMBER = 2;
        @SuppressWarnings("serial")
        private com.google.protobuf.Internal.LongList partitionIds_ =
            emptyLongList();
        /**
         * 
         * Partitions that will be read by this session.
         * If list is empty - then session will read all partitions.
         * 
         *
         * repeated int64 partition_ids = 2;
         * @return A list containing the partitionIds.
         */
        @java.lang.Override
        public java.util.List
            getPartitionIdsList() {
          return partitionIds_;
        }
        /**
         * 
         * Partitions that will be read by this session.
         * If list is empty - then session will read all partitions.
         * 
         *
         * repeated int64 partition_ids = 2;
         * @return The count of partitionIds.
         */
        public int getPartitionIdsCount() {
          return partitionIds_.size();
        }
        /**
         * 
         * Partitions that will be read by this session.
         * If list is empty - then session will read all partitions.
         * 
         *
         * repeated int64 partition_ids = 2;
         * @param index The index of the element to return.
         * @return The partitionIds at the given index.
         */
        public long getPartitionIds(int index) {
          return partitionIds_.getLong(index);
        }
        private int partitionIdsMemoizedSerializedSize = -1;

        public static final int MAX_LAG_FIELD_NUMBER = 3;
        private com.google.protobuf.Duration maxLag_;
        /**
         * 
         * Skip all messages that has write timestamp smaller than now - max_lag.
         * Zero means infinite lag.
         * 
         *
         * .google.protobuf.Duration max_lag = 3;
         * @return Whether the maxLag field is set.
         */
        @java.lang.Override
        public boolean hasMaxLag() {
          return ((bitField0_ & 0x00000001) != 0);
        }
        /**
         * 
         * Skip all messages that has write timestamp smaller than now - max_lag.
         * Zero means infinite lag.
         * 
         *
         * .google.protobuf.Duration max_lag = 3;
         * @return The maxLag.
         */
        @java.lang.Override
        public com.google.protobuf.Duration getMaxLag() {
          return maxLag_ == null ? com.google.protobuf.Duration.getDefaultInstance() : maxLag_;
        }
        /**
         * 
         * Skip all messages that has write timestamp smaller than now - max_lag.
         * Zero means infinite lag.
         * 
         *
         * .google.protobuf.Duration max_lag = 3;
         */
        @java.lang.Override
        public com.google.protobuf.DurationOrBuilder getMaxLagOrBuilder() {
          return maxLag_ == null ? com.google.protobuf.Duration.getDefaultInstance() : maxLag_;
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        public static final int READ_FROM_FIELD_NUMBER = 4;
        private com.google.protobuf.Timestamp readFrom_;
        /**
         * 
         * Read data only after this timestamp from this topic.
         * Read only messages with 'written_at' value greater or equal than this timestamp.
         * 
         *
         * .google.protobuf.Timestamp read_from = 4;
         * @return Whether the readFrom field is set.
         */
        @java.lang.Override
        public boolean hasReadFrom() {
          return ((bitField0_ & 0x00000002) != 0);
        }
        /**
         * 
         * Read data only after this timestamp from this topic.
         * Read only messages with 'written_at' value greater or equal than this timestamp.
         * 
         *
         * .google.protobuf.Timestamp read_from = 4;
         * @return The readFrom.
         */
        @java.lang.Override
        public com.google.protobuf.Timestamp getReadFrom() {
          return readFrom_ == null ? com.google.protobuf.Timestamp.getDefaultInstance() : readFrom_;
        }
        /**
         * 
         * Read data only after this timestamp from this topic.
         * Read only messages with 'written_at' value greater or equal than this timestamp.
         * 
         *
         * .google.protobuf.Timestamp read_from = 4;
         */
        @java.lang.Override
        public com.google.protobuf.TimestampOrBuilder getReadFromOrBuilder() {
          return readFrom_ == null ? com.google.protobuf.Timestamp.getDefaultInstance() : readFrom_;
        }

        private byte memoizedIsInitialized = -1;
        @java.lang.Override
        public final boolean isInitialized() {
          byte isInitialized = memoizedIsInitialized;
          if (isInitialized == 1) return true;
          if (isInitialized == 0) return false;

          memoizedIsInitialized = 1;
          return true;
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        @java.lang.Override
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                            throws java.io.IOException {
          getSerializedSize();
          if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(path_)) {
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            output.writeUInt32NoTag(18);
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          if (((bitField0_ & 0x00000002) != 0)) {
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        @java.lang.Override
        public int getSerializedSize() {
          int size = memoizedSize;
          if (size != -1) return size;

          size = 0;
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        @java.lang.Override
        public boolean equals(final java.lang.Object obj) {
          if (obj == this) {
           return true;
          }
          if (!(obj instanceof tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest.TopicReadSettings)) {
            return super.equals(obj);
          }
          tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest.TopicReadSettings other = (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest.TopicReadSettings) obj;

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          if (memoizedHashCode != 0) {
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          int hash = 41;
          hash = (19 * hash) + getDescriptor().hashCode();
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        public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest.TopicReadSettings parseFrom(
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          public Builder mergeReadFrom(com.google.protobuf.Timestamp value) {
            if (readFromBuilder_ == null) {
              if (((bitField0_ & 0x00000008) != 0) &&
                readFrom_ != null &&
                readFrom_ != com.google.protobuf.Timestamp.getDefaultInstance()) {
                getReadFromBuilder().mergeFrom(value);
              } else {
                readFrom_ = value;
              }
            } else {
              readFromBuilder_.mergeFrom(value);
            }
            if (readFrom_ != null) {
              bitField0_ |= 0x00000008;
              onChanged();
            }
            return this;
          }
          /**
           * 
           * Read data only after this timestamp from this topic.
           * Read only messages with 'written_at' value greater or equal than this timestamp.
           * 
           *
           * .google.protobuf.Timestamp read_from = 4;
           */
          public Builder clearReadFrom() {
            bitField0_ = (bitField0_ & ~0x00000008);
            readFrom_ = null;
            if (readFromBuilder_ != null) {
              readFromBuilder_.dispose();
              readFromBuilder_ = null;
            }
            onChanged();
            return this;
          }
          /**
           * 
           * Read data only after this timestamp from this topic.
           * Read only messages with 'written_at' value greater or equal than this timestamp.
           * 
           *
           * .google.protobuf.Timestamp read_from = 4;
           */
          public com.google.protobuf.Timestamp.Builder getReadFromBuilder() {
            bitField0_ |= 0x00000008;
            onChanged();
            return getReadFromFieldBuilder().getBuilder();
          }
          /**
           * 
           * Read data only after this timestamp from this topic.
           * Read only messages with 'written_at' value greater or equal than this timestamp.
           * 
           *
           * .google.protobuf.Timestamp read_from = 4;
           */
          public com.google.protobuf.TimestampOrBuilder getReadFromOrBuilder() {
            if (readFromBuilder_ != null) {
              return readFromBuilder_.getMessageOrBuilder();
            } else {
              return readFrom_ == null ?
                  com.google.protobuf.Timestamp.getDefaultInstance() : readFrom_;
            }
          }
          /**
           * 
           * Read data only after this timestamp from this topic.
           * Read only messages with 'written_at' value greater or equal than this timestamp.
           * 
           *
           * .google.protobuf.Timestamp read_from = 4;
           */
          private com.google.protobuf.SingleFieldBuilderV3<
              com.google.protobuf.Timestamp, com.google.protobuf.Timestamp.Builder, com.google.protobuf.TimestampOrBuilder> 
              getReadFromFieldBuilder() {
            if (readFromBuilder_ == null) {
              readFromBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
                  com.google.protobuf.Timestamp, com.google.protobuf.Timestamp.Builder, com.google.protobuf.TimestampOrBuilder>(
                      getReadFrom(),
                      getParentForChildren(),
                      isClean());
              readFrom_ = null;
            }
            return readFromBuilder_;
          }
          @java.lang.Override
          public final Builder setUnknownFields(
              final com.google.protobuf.UnknownFieldSet unknownFields) {
            return super.setUnknownFields(unknownFields);
          }

          @java.lang.Override
          public final Builder mergeUnknownFields(
              final com.google.protobuf.UnknownFieldSet unknownFields) {
            return super.mergeUnknownFields(unknownFields);
          }


          // @@protoc_insertion_point(builder_scope:Ydb.Topic.StreamReadMessage.InitRequest.TopicReadSettings)
        }

        // @@protoc_insertion_point(class_scope:Ydb.Topic.StreamReadMessage.InitRequest.TopicReadSettings)
        private static final tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest.TopicReadSettings DEFAULT_INSTANCE;
        static {
          DEFAULT_INSTANCE = new tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest.TopicReadSettings();
        }

        public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest.TopicReadSettings getDefaultInstance() {
          return DEFAULT_INSTANCE;
        }

        private static final com.google.protobuf.Parser
            PARSER = new com.google.protobuf.AbstractParser() {
          @java.lang.Override
          public TopicReadSettings parsePartialFrom(
              com.google.protobuf.CodedInputStream input,
              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
              throws com.google.protobuf.InvalidProtocolBufferException {
            Builder builder = newBuilder();
            try {
              builder.mergeFrom(input, extensionRegistry);
            } catch (com.google.protobuf.InvalidProtocolBufferException e) {
              throw e.setUnfinishedMessage(builder.buildPartial());
            } catch (com.google.protobuf.UninitializedMessageException e) {
              throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
            } catch (java.io.IOException e) {
              throw new com.google.protobuf.InvalidProtocolBufferException(e)
                  .setUnfinishedMessage(builder.buildPartial());
            }
            return builder.buildPartial();
          }
        };

        public static com.google.protobuf.Parser parser() {
          return PARSER;
        }

        @java.lang.Override
        public com.google.protobuf.Parser getParserForType() {
          return PARSER;
        }

        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest.TopicReadSettings getDefaultInstanceForType() {
          return DEFAULT_INSTANCE;
        }

      }

      public static final int TOPICS_READ_SETTINGS_FIELD_NUMBER = 1;
      @SuppressWarnings("serial")
      private java.util.List topicsReadSettings_;
      /**
       * 
       * Message that describes topic to read.
       * Topics that will be read by this session.
       * 
       *
       * repeated .Ydb.Topic.StreamReadMessage.InitRequest.TopicReadSettings topics_read_settings = 1;
       */
      @java.lang.Override
      public java.util.List getTopicsReadSettingsList() {
        return topicsReadSettings_;
      }
      /**
       * 
       * Message that describes topic to read.
       * Topics that will be read by this session.
       * 
       *
       * repeated .Ydb.Topic.StreamReadMessage.InitRequest.TopicReadSettings topics_read_settings = 1;
       */
      @java.lang.Override
      public java.util.List 
          getTopicsReadSettingsOrBuilderList() {
        return topicsReadSettings_;
      }
      /**
       * 
       * Message that describes topic to read.
       * Topics that will be read by this session.
       * 
       *
       * repeated .Ydb.Topic.StreamReadMessage.InitRequest.TopicReadSettings topics_read_settings = 1;
       */
      @java.lang.Override
      public int getTopicsReadSettingsCount() {
        return topicsReadSettings_.size();
      }
      /**
       * 
       * Message that describes topic to read.
       * Topics that will be read by this session.
       * 
       *
       * repeated .Ydb.Topic.StreamReadMessage.InitRequest.TopicReadSettings topics_read_settings = 1;
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest.TopicReadSettings getTopicsReadSettings(int index) {
        return topicsReadSettings_.get(index);
      }
      /**
       * 
       * Message that describes topic to read.
       * Topics that will be read by this session.
       * 
       *
       * repeated .Ydb.Topic.StreamReadMessage.InitRequest.TopicReadSettings topics_read_settings = 1;
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest.TopicReadSettingsOrBuilder getTopicsReadSettingsOrBuilder(
          int index) {
        return topicsReadSettings_.get(index);
      }

      public static final int CONSUMER_FIELD_NUMBER = 2;
      @SuppressWarnings("serial")
      private volatile java.lang.Object consumer_ = "";
      /**
       * 
       * Path of consumer that is used for reading by this session.
       * 
       *
       * string consumer = 2;
       * @return The consumer.
       */
      @java.lang.Override
      public java.lang.String getConsumer() {
        java.lang.Object ref = consumer_;
        if (ref instanceof java.lang.String) {
          return (java.lang.String) ref;
        } else {
          com.google.protobuf.ByteString bs = 
              (com.google.protobuf.ByteString) ref;
          java.lang.String s = bs.toStringUtf8();
          consumer_ = s;
          return s;
        }
      }
      /**
       * 
       * Path of consumer that is used for reading by this session.
       * 
       *
       * string consumer = 2;
       * @return The bytes for consumer.
       */
      @java.lang.Override
      public com.google.protobuf.ByteString
          getConsumerBytes() {
        java.lang.Object ref = consumer_;
        if (ref instanceof java.lang.String) {
          com.google.protobuf.ByteString b = 
              com.google.protobuf.ByteString.copyFromUtf8(
                  (java.lang.String) ref);
          consumer_ = b;
          return b;
        } else {
          return (com.google.protobuf.ByteString) ref;
        }
      }

      public static final int READER_NAME_FIELD_NUMBER = 3;
      @SuppressWarnings("serial")
      private volatile java.lang.Object readerName_ = "";
      /**
       * 
       * Optional name. Will be shown in debug stat.
       * 
       *
       * string reader_name = 3;
       * @return The readerName.
       */
      @java.lang.Override
      public java.lang.String getReaderName() {
        java.lang.Object ref = readerName_;
        if (ref instanceof java.lang.String) {
          return (java.lang.String) ref;
        } else {
          com.google.protobuf.ByteString bs = 
              (com.google.protobuf.ByteString) ref;
          java.lang.String s = bs.toStringUtf8();
          readerName_ = s;
          return s;
        }
      }
      /**
       * 
       * Optional name. Will be shown in debug stat.
       * 
       *
       * string reader_name = 3;
       * @return The bytes for readerName.
       */
      @java.lang.Override
      public com.google.protobuf.ByteString
          getReaderNameBytes() {
        java.lang.Object ref = readerName_;
        if (ref instanceof java.lang.String) {
          com.google.protobuf.ByteString b = 
              com.google.protobuf.ByteString.copyFromUtf8(
                  (java.lang.String) ref);
          readerName_ = b;
          return b;
        } else {
          return (com.google.protobuf.ByteString) ref;
        }
      }

      public static final int DIRECT_READ_FIELD_NUMBER = 4;
      private boolean directRead_ = false;
      /**
       * 
       * Direct reading from a partition node.
       * 
       *
       * bool direct_read = 4;
       * @return The directRead.
       */
      @java.lang.Override
      public boolean getDirectRead() {
        return directRead_;
      }

      private byte memoizedIsInitialized = -1;
      @java.lang.Override
      public final boolean isInitialized() {
        byte isInitialized = memoizedIsInitialized;
        if (isInitialized == 1) return true;
        if (isInitialized == 0) return false;

        memoizedIsInitialized = 1;
        return true;
      }

      @java.lang.Override
      public void writeTo(com.google.protobuf.CodedOutputStream output)
                          throws java.io.IOException {
        for (int i = 0; i < topicsReadSettings_.size(); i++) {
          output.writeMessage(1, topicsReadSettings_.get(i));
        }
        if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(consumer_)) {
          com.google.protobuf.GeneratedMessageV3.writeString(output, 2, consumer_);
        }
        if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(readerName_)) {
          com.google.protobuf.GeneratedMessageV3.writeString(output, 3, readerName_);
        }
        if (directRead_ != false) {
          output.writeBool(4, directRead_);
        }
        getUnknownFields().writeTo(output);
      }

      @java.lang.Override
      public int getSerializedSize() {
        int size = memoizedSize;
        if (size != -1) return size;

        size = 0;
        for (int i = 0; i < topicsReadSettings_.size(); i++) {
          size += com.google.protobuf.CodedOutputStream
            .computeMessageSize(1, topicsReadSettings_.get(i));
        }
        if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(consumer_)) {
          size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, consumer_);
        }
        if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(readerName_)) {
          size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, readerName_);
        }
        if (directRead_ != false) {
          size += com.google.protobuf.CodedOutputStream
            .computeBoolSize(4, directRead_);
        }
        size += getUnknownFields().getSerializedSize();
        memoizedSize = size;
        return size;
      }

      @java.lang.Override
      public boolean equals(final java.lang.Object obj) {
        if (obj == this) {
         return true;
        }
        if (!(obj instanceof tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest)) {
          return super.equals(obj);
        }
        tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest other = (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest) obj;

        if (!getTopicsReadSettingsList()
            .equals(other.getTopicsReadSettingsList())) return false;
        if (!getConsumer()
            .equals(other.getConsumer())) return false;
        if (!getReaderName()
            .equals(other.getReaderName())) return false;
        if (getDirectRead()
            != other.getDirectRead()) return false;
        if (!getUnknownFields().equals(other.getUnknownFields())) return false;
        return true;
      }

      @java.lang.Override
      public int hashCode() {
        if (memoizedHashCode != 0) {
          return memoizedHashCode;
        }
        int hash = 41;
        hash = (19 * hash) + getDescriptor().hashCode();
        if (getTopicsReadSettingsCount() > 0) {
          hash = (37 * hash) + TOPICS_READ_SETTINGS_FIELD_NUMBER;
          hash = (53 * hash) + getTopicsReadSettingsList().hashCode();
        }
        hash = (37 * hash) + CONSUMER_FIELD_NUMBER;
        hash = (53 * hash) + getConsumer().hashCode();
        hash = (37 * hash) + READER_NAME_FIELD_NUMBER;
        hash = (53 * hash) + getReaderName().hashCode();
        hash = (37 * hash) + DIRECT_READ_FIELD_NUMBER;
        hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(
            getDirectRead());
        hash = (29 * hash) + getUnknownFields().hashCode();
        memoizedHashCode = hash;
        return hash;
      }

      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest parseFrom(
          java.nio.ByteBuffer data)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest parseFrom(
          java.nio.ByteBuffer data,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data, extensionRegistry);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest parseFrom(
          com.google.protobuf.ByteString data)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest parseFrom(
          com.google.protobuf.ByteString data,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data, extensionRegistry);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest parseFrom(byte[] data)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest parseFrom(
          byte[] data,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data, extensionRegistry);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest parseFrom(java.io.InputStream input)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseWithIOException(PARSER, input);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest parseFrom(
          java.io.InputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseWithIOException(PARSER, input, extensionRegistry);
      }

      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest parseDelimitedFrom(java.io.InputStream input)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseDelimitedWithIOException(PARSER, input);
      }

      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest parseDelimitedFrom(
          java.io.InputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest parseFrom(
          com.google.protobuf.CodedInputStream input)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseWithIOException(PARSER, input);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest parseFrom(
          com.google.protobuf.CodedInputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseWithIOException(PARSER, input, extensionRegistry);
      }

      @java.lang.Override
      public Builder newBuilderForType() { return newBuilder(); }
      public static Builder newBuilder() {
        return DEFAULT_INSTANCE.toBuilder();
      }
      public static Builder newBuilder(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest prototype) {
        return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
      }
      @java.lang.Override
      public Builder toBuilder() {
        return this == DEFAULT_INSTANCE
            ? new Builder() : new Builder().mergeFrom(this);
      }

      @java.lang.Override
      protected Builder newBuilderForType(
          com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
        Builder builder = new Builder(parent);
        return builder;
      }
      /**
       * 
       * Handshake request.
       * 
       *
       * Protobuf type {@code Ydb.Topic.StreamReadMessage.InitRequest}
       */
      public static final class Builder extends
          com.google.protobuf.GeneratedMessageV3.Builder implements
          // @@protoc_insertion_point(builder_implements:Ydb.Topic.StreamReadMessage.InitRequest)
          tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequestOrBuilder {
        public static final com.google.protobuf.Descriptors.Descriptor
            getDescriptor() {
          return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamReadMessage_InitRequest_descriptor;
        }

        @java.lang.Override
        protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
            internalGetFieldAccessorTable() {
          return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamReadMessage_InitRequest_fieldAccessorTable
              .ensureFieldAccessorsInitialized(
                  tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest.class, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest.Builder.class);
        }

        // Construct using tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest.newBuilder()
        private Builder() {

        }

        private Builder(
            com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
          super(parent);

        }
        @java.lang.Override
        public Builder clear() {
          super.clear();
          bitField0_ = 0;
          if (topicsReadSettingsBuilder_ == null) {
            topicsReadSettings_ = java.util.Collections.emptyList();
          } else {
            topicsReadSettings_ = null;
            topicsReadSettingsBuilder_.clear();
          }
          bitField0_ = (bitField0_ & ~0x00000001);
          consumer_ = "";
          readerName_ = "";
          directRead_ = false;
          return this;
        }

        @java.lang.Override
        public com.google.protobuf.Descriptors.Descriptor
            getDescriptorForType() {
          return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamReadMessage_InitRequest_descriptor;
        }

        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest getDefaultInstanceForType() {
          return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest.getDefaultInstance();
        }

        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest build() {
          tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest result = buildPartial();
          if (!result.isInitialized()) {
            throw newUninitializedMessageException(result);
          }
          return result;
        }

        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest buildPartial() {
          tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest result = new tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest(this);
          buildPartialRepeatedFields(result);
          if (bitField0_ != 0) { buildPartial0(result); }
          onBuilt();
          return result;
        }

        private void buildPartialRepeatedFields(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest result) {
          if (topicsReadSettingsBuilder_ == null) {
            if (((bitField0_ & 0x00000001) != 0)) {
              topicsReadSettings_ = java.util.Collections.unmodifiableList(topicsReadSettings_);
              bitField0_ = (bitField0_ & ~0x00000001);
            }
            result.topicsReadSettings_ = topicsReadSettings_;
          } else {
            result.topicsReadSettings_ = topicsReadSettingsBuilder_.build();
          }
        }

        private void buildPartial0(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest result) {
          int from_bitField0_ = bitField0_;
          if (((from_bitField0_ & 0x00000002) != 0)) {
            result.consumer_ = consumer_;
          }
          if (((from_bitField0_ & 0x00000004) != 0)) {
            result.readerName_ = readerName_;
          }
          if (((from_bitField0_ & 0x00000008) != 0)) {
            result.directRead_ = directRead_;
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        @java.lang.Override
        public Builder clone() {
          return super.clone();
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        @java.lang.Override
        public Builder setField(
            com.google.protobuf.Descriptors.FieldDescriptor field,
            java.lang.Object value) {
          return super.setField(field, value);
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        @java.lang.Override
        public Builder clearField(
            com.google.protobuf.Descriptors.FieldDescriptor field) {
          return super.clearField(field);
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        @java.lang.Override
        public Builder clearOneof(
            com.google.protobuf.Descriptors.OneofDescriptor oneof) {
          return super.clearOneof(oneof);
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        @java.lang.Override
        public Builder setRepeatedField(
            com.google.protobuf.Descriptors.FieldDescriptor field,
            int index, java.lang.Object value) {
          return super.setRepeatedField(field, index, value);
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        @java.lang.Override
        public Builder addRepeatedField(
            com.google.protobuf.Descriptors.FieldDescriptor field,
            java.lang.Object value) {
          return super.addRepeatedField(field, value);
        }
        @java.lang.Override
        public Builder mergeFrom(com.google.protobuf.Message other) {
          if (other instanceof tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest) {
            return mergeFrom((tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest)other);
          } else {
            super.mergeFrom(other);
            return this;
          }
        }

        public Builder mergeFrom(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest other) {
          if (other == tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest.getDefaultInstance()) return this;
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            if (!other.topicsReadSettings_.isEmpty()) {
              if (topicsReadSettings_.isEmpty()) {
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                bitField0_ = (bitField0_ & ~0x00000001);
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                ensureTopicsReadSettingsIsMutable();
                topicsReadSettings_.addAll(other.topicsReadSettings_);
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              onChanged();
            }
          } else {
            if (!other.topicsReadSettings_.isEmpty()) {
              if (topicsReadSettingsBuilder_.isEmpty()) {
                topicsReadSettingsBuilder_.dispose();
                topicsReadSettingsBuilder_ = null;
                topicsReadSettings_ = other.topicsReadSettings_;
                bitField0_ = (bitField0_ & ~0x00000001);
                topicsReadSettingsBuilder_ = 
                  com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders ?
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              } else {
                topicsReadSettingsBuilder_.addAllMessages(other.topicsReadSettings_);
              }
            }
          }
          if (!other.getConsumer().isEmpty()) {
            consumer_ = other.consumer_;
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            onChanged();
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          if (!other.getReaderName().isEmpty()) {
            readerName_ = other.readerName_;
            bitField0_ |= 0x00000004;
            onChanged();
          }
          if (other.getDirectRead() != false) {
            setDirectRead(other.getDirectRead());
          }
          this.mergeUnknownFields(other.getUnknownFields());
          onChanged();
          return this;
        }

        @java.lang.Override
        public final boolean isInitialized() {
          return true;
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        @java.lang.Override
        public Builder mergeFrom(
            com.google.protobuf.CodedInputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws java.io.IOException {
          if (extensionRegistry == null) {
            throw new java.lang.NullPointerException();
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            while (!done) {
              int tag = input.readTag();
              switch (tag) {
                case 0:
                  done = true;
                  break;
                case 10: {
                  tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest.TopicReadSettings m =
                      input.readMessage(
                          tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest.TopicReadSettings.parser(),
                          extensionRegistry);
                  if (topicsReadSettingsBuilder_ == null) {
                    ensureTopicsReadSettingsIsMutable();
                    topicsReadSettings_.add(m);
                  } else {
                    topicsReadSettingsBuilder_.addMessage(m);
                  }
                  break;
                } // case 10
                case 18: {
                  consumer_ = input.readStringRequireUtf8();
                  bitField0_ |= 0x00000002;
                  break;
                } // case 18
                case 26: {
                  readerName_ = input.readStringRequireUtf8();
                  bitField0_ |= 0x00000004;
                  break;
                } // case 26
                case 32: {
                  directRead_ = input.readBool();
                  bitField0_ |= 0x00000008;
                  break;
                } // case 32
                default: {
                  if (!super.parseUnknownField(input, extensionRegistry, tag)) {
                    done = true; // was an endgroup tag
                  }
                  break;
                } // default:
              } // switch (tag)
            } // while (!done)
          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
            throw e.unwrapIOException();
          } finally {
            onChanged();
          } // finally
          return this;
        }
        private int bitField0_;

        private java.util.List topicsReadSettings_ =
          java.util.Collections.emptyList();
        private void ensureTopicsReadSettingsIsMutable() {
          if (!((bitField0_ & 0x00000001) != 0)) {
            topicsReadSettings_ = new java.util.ArrayList(topicsReadSettings_);
            bitField0_ |= 0x00000001;
           }
        }

        private com.google.protobuf.RepeatedFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest.TopicReadSettings, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest.TopicReadSettings.Builder, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest.TopicReadSettingsOrBuilder> topicsReadSettingsBuilder_;

        /**
         * 
         * Message that describes topic to read.
         * Topics that will be read by this session.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.InitRequest.TopicReadSettings topics_read_settings = 1;
         */
        public java.util.List getTopicsReadSettingsList() {
          if (topicsReadSettingsBuilder_ == null) {
            return java.util.Collections.unmodifiableList(topicsReadSettings_);
          } else {
            return topicsReadSettingsBuilder_.getMessageList();
          }
        }
        /**
         * 
         * Message that describes topic to read.
         * Topics that will be read by this session.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.InitRequest.TopicReadSettings topics_read_settings = 1;
         */
        public int getTopicsReadSettingsCount() {
          if (topicsReadSettingsBuilder_ == null) {
            return topicsReadSettings_.size();
          } else {
            return topicsReadSettingsBuilder_.getCount();
          }
        }
        /**
         * 
         * Message that describes topic to read.
         * Topics that will be read by this session.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.InitRequest.TopicReadSettings topics_read_settings = 1;
         */
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest.TopicReadSettings getTopicsReadSettings(int index) {
          if (topicsReadSettingsBuilder_ == null) {
            return topicsReadSettings_.get(index);
          } else {
            return topicsReadSettingsBuilder_.getMessage(index);
          }
        }
        /**
         * 
         * Message that describes topic to read.
         * Topics that will be read by this session.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.InitRequest.TopicReadSettings topics_read_settings = 1;
         */
        public Builder setTopicsReadSettings(
            int index, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest.TopicReadSettings value) {
          if (topicsReadSettingsBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            ensureTopicsReadSettingsIsMutable();
            topicsReadSettings_.set(index, value);
            onChanged();
          } else {
            topicsReadSettingsBuilder_.setMessage(index, value);
          }
          return this;
        }
        /**
         * 
         * Message that describes topic to read.
         * Topics that will be read by this session.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.InitRequest.TopicReadSettings topics_read_settings = 1;
         */
        public Builder setTopicsReadSettings(
            int index, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest.TopicReadSettings.Builder builderForValue) {
          if (topicsReadSettingsBuilder_ == null) {
            ensureTopicsReadSettingsIsMutable();
            topicsReadSettings_.set(index, builderForValue.build());
            onChanged();
          } else {
            topicsReadSettingsBuilder_.setMessage(index, builderForValue.build());
          }
          return this;
        }
        /**
         * 
         * Message that describes topic to read.
         * Topics that will be read by this session.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.InitRequest.TopicReadSettings topics_read_settings = 1;
         */
        public Builder addTopicsReadSettings(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest.TopicReadSettings value) {
          if (topicsReadSettingsBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            ensureTopicsReadSettingsIsMutable();
            topicsReadSettings_.add(value);
            onChanged();
          } else {
            topicsReadSettingsBuilder_.addMessage(value);
          }
          return this;
        }
        /**
         * 
         * Message that describes topic to read.
         * Topics that will be read by this session.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.InitRequest.TopicReadSettings topics_read_settings = 1;
         */
        public Builder addTopicsReadSettings(
            int index, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest.TopicReadSettings value) {
          if (topicsReadSettingsBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            ensureTopicsReadSettingsIsMutable();
            topicsReadSettings_.add(index, value);
            onChanged();
          } else {
            topicsReadSettingsBuilder_.addMessage(index, value);
          }
          return this;
        }
        /**
         * 
         * Message that describes topic to read.
         * Topics that will be read by this session.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.InitRequest.TopicReadSettings topics_read_settings = 1;
         */
        public Builder addTopicsReadSettings(
            tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest.TopicReadSettings.Builder builderForValue) {
          if (topicsReadSettingsBuilder_ == null) {
            ensureTopicsReadSettingsIsMutable();
            topicsReadSettings_.add(builderForValue.build());
            onChanged();
          } else {
            topicsReadSettingsBuilder_.addMessage(builderForValue.build());
          }
          return this;
        }
        /**
         * 
         * Message that describes topic to read.
         * Topics that will be read by this session.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.InitRequest.TopicReadSettings topics_read_settings = 1;
         */
        public Builder addTopicsReadSettings(
            int index, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest.TopicReadSettings.Builder builderForValue) {
          if (topicsReadSettingsBuilder_ == null) {
            ensureTopicsReadSettingsIsMutable();
            topicsReadSettings_.add(index, builderForValue.build());
            onChanged();
          } else {
            topicsReadSettingsBuilder_.addMessage(index, builderForValue.build());
          }
          return this;
        }
        /**
         * 
         * Message that describes topic to read.
         * Topics that will be read by this session.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.InitRequest.TopicReadSettings topics_read_settings = 1;
         */
        public Builder addAllTopicsReadSettings(
            java.lang.Iterable values) {
          if (topicsReadSettingsBuilder_ == null) {
            ensureTopicsReadSettingsIsMutable();
            com.google.protobuf.AbstractMessageLite.Builder.addAll(
                values, topicsReadSettings_);
            onChanged();
          } else {
            topicsReadSettingsBuilder_.addAllMessages(values);
          }
          return this;
        }
        /**
         * 
         * Message that describes topic to read.
         * Topics that will be read by this session.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.InitRequest.TopicReadSettings topics_read_settings = 1;
         */
        public Builder clearTopicsReadSettings() {
          if (topicsReadSettingsBuilder_ == null) {
            topicsReadSettings_ = java.util.Collections.emptyList();
            bitField0_ = (bitField0_ & ~0x00000001);
            onChanged();
          } else {
            topicsReadSettingsBuilder_.clear();
          }
          return this;
        }
        /**
         * 
         * Message that describes topic to read.
         * Topics that will be read by this session.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.InitRequest.TopicReadSettings topics_read_settings = 1;
         */
        public Builder removeTopicsReadSettings(int index) {
          if (topicsReadSettingsBuilder_ == null) {
            ensureTopicsReadSettingsIsMutable();
            topicsReadSettings_.remove(index);
            onChanged();
          } else {
            topicsReadSettingsBuilder_.remove(index);
          }
          return this;
        }
        /**
         * 
         * Message that describes topic to read.
         * Topics that will be read by this session.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.InitRequest.TopicReadSettings topics_read_settings = 1;
         */
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest.TopicReadSettings.Builder getTopicsReadSettingsBuilder(
            int index) {
          return getTopicsReadSettingsFieldBuilder().getBuilder(index);
        }
        /**
         * 
         * Message that describes topic to read.
         * Topics that will be read by this session.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.InitRequest.TopicReadSettings topics_read_settings = 1;
         */
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest.TopicReadSettingsOrBuilder getTopicsReadSettingsOrBuilder(
            int index) {
          if (topicsReadSettingsBuilder_ == null) {
            return topicsReadSettings_.get(index);  } else {
            return topicsReadSettingsBuilder_.getMessageOrBuilder(index);
          }
        }
        /**
         * 
         * Message that describes topic to read.
         * Topics that will be read by this session.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.InitRequest.TopicReadSettings topics_read_settings = 1;
         */
        public java.util.List 
             getTopicsReadSettingsOrBuilderList() {
          if (topicsReadSettingsBuilder_ != null) {
            return topicsReadSettingsBuilder_.getMessageOrBuilderList();
          } else {
            return java.util.Collections.unmodifiableList(topicsReadSettings_);
          }
        }
        /**
         * 
         * Message that describes topic to read.
         * Topics that will be read by this session.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.InitRequest.TopicReadSettings topics_read_settings = 1;
         */
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest.TopicReadSettings.Builder addTopicsReadSettingsBuilder() {
          return getTopicsReadSettingsFieldBuilder().addBuilder(
              tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest.TopicReadSettings.getDefaultInstance());
        }
        /**
         * 
         * Message that describes topic to read.
         * Topics that will be read by this session.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.InitRequest.TopicReadSettings topics_read_settings = 1;
         */
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest.TopicReadSettings.Builder addTopicsReadSettingsBuilder(
            int index) {
          return getTopicsReadSettingsFieldBuilder().addBuilder(
              index, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest.TopicReadSettings.getDefaultInstance());
        }
        /**
         * 
         * Message that describes topic to read.
         * Topics that will be read by this session.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.InitRequest.TopicReadSettings topics_read_settings = 1;
         */
        public java.util.List 
             getTopicsReadSettingsBuilderList() {
          return getTopicsReadSettingsFieldBuilder().getBuilderList();
        }
        private com.google.protobuf.RepeatedFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest.TopicReadSettings, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest.TopicReadSettings.Builder, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest.TopicReadSettingsOrBuilder> 
            getTopicsReadSettingsFieldBuilder() {
          if (topicsReadSettingsBuilder_ == null) {
            topicsReadSettingsBuilder_ = new com.google.protobuf.RepeatedFieldBuilderV3<
                tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest.TopicReadSettings, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest.TopicReadSettings.Builder, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest.TopicReadSettingsOrBuilder>(
                    topicsReadSettings_,
                    ((bitField0_ & 0x00000001) != 0),
                    getParentForChildren(),
                    isClean());
            topicsReadSettings_ = null;
          }
          return topicsReadSettingsBuilder_;
        }

        private java.lang.Object consumer_ = "";
        /**
         * 
         * Path of consumer that is used for reading by this session.
         * 
         *
         * string consumer = 2;
         * @return The consumer.
         */
        public java.lang.String getConsumer() {
          java.lang.Object ref = consumer_;
          if (!(ref instanceof java.lang.String)) {
            com.google.protobuf.ByteString bs =
                (com.google.protobuf.ByteString) ref;
            java.lang.String s = bs.toStringUtf8();
            consumer_ = s;
            return s;
          } else {
            return (java.lang.String) ref;
          }
        }
        /**
         * 
         * Path of consumer that is used for reading by this session.
         * 
         *
         * string consumer = 2;
         * @return The bytes for consumer.
         */
        public com.google.protobuf.ByteString
            getConsumerBytes() {
          java.lang.Object ref = consumer_;
          if (ref instanceof String) {
            com.google.protobuf.ByteString b = 
                com.google.protobuf.ByteString.copyFromUtf8(
                    (java.lang.String) ref);
            consumer_ = b;
            return b;
          } else {
            return (com.google.protobuf.ByteString) ref;
          }
        }
        /**
         * 
         * Path of consumer that is used for reading by this session.
         * 
         *
         * string consumer = 2;
         * @param value The consumer to set.
         * @return This builder for chaining.
         */
        public Builder setConsumer(
            java.lang.String value) {
          if (value == null) { throw new NullPointerException(); }
          consumer_ = value;
          bitField0_ |= 0x00000002;
          onChanged();
          return this;
        }
        /**
         * 
         * Path of consumer that is used for reading by this session.
         * 
         *
         * string consumer = 2;
         * @return This builder for chaining.
         */
        public Builder clearConsumer() {
          consumer_ = getDefaultInstance().getConsumer();
          bitField0_ = (bitField0_ & ~0x00000002);
          onChanged();
          return this;
        }
        /**
         * 
         * Path of consumer that is used for reading by this session.
         * 
         *
         * string consumer = 2;
         * @param value The bytes for consumer to set.
         * @return This builder for chaining.
         */
        public Builder setConsumerBytes(
            com.google.protobuf.ByteString value) {
          if (value == null) { throw new NullPointerException(); }
          checkByteStringIsUtf8(value);
          consumer_ = value;
          bitField0_ |= 0x00000002;
          onChanged();
          return this;
        }

        private java.lang.Object readerName_ = "";
        /**
         * 
         * Optional name. Will be shown in debug stat.
         * 
         *
         * string reader_name = 3;
         * @return The readerName.
         */
        public java.lang.String getReaderName() {
          java.lang.Object ref = readerName_;
          if (!(ref instanceof java.lang.String)) {
            com.google.protobuf.ByteString bs =
                (com.google.protobuf.ByteString) ref;
            java.lang.String s = bs.toStringUtf8();
            readerName_ = s;
            return s;
          } else {
            return (java.lang.String) ref;
          }
        }
        /**
         * 
         * Optional name. Will be shown in debug stat.
         * 
         *
         * string reader_name = 3;
         * @return The bytes for readerName.
         */
        public com.google.protobuf.ByteString
            getReaderNameBytes() {
          java.lang.Object ref = readerName_;
          if (ref instanceof String) {
            com.google.protobuf.ByteString b = 
                com.google.protobuf.ByteString.copyFromUtf8(
                    (java.lang.String) ref);
            readerName_ = b;
            return b;
          } else {
            return (com.google.protobuf.ByteString) ref;
          }
        }
        /**
         * 
         * Optional name. Will be shown in debug stat.
         * 
         *
         * string reader_name = 3;
         * @param value The readerName to set.
         * @return This builder for chaining.
         */
        public Builder setReaderName(
            java.lang.String value) {
          if (value == null) { throw new NullPointerException(); }
          readerName_ = value;
          bitField0_ |= 0x00000004;
          onChanged();
          return this;
        }
        /**
         * 
         * Optional name. Will be shown in debug stat.
         * 
         *
         * string reader_name = 3;
         * @return This builder for chaining.
         */
        public Builder clearReaderName() {
          readerName_ = getDefaultInstance().getReaderName();
          bitField0_ = (bitField0_ & ~0x00000004);
          onChanged();
          return this;
        }
        /**
         * 
         * Optional name. Will be shown in debug stat.
         * 
         *
         * string reader_name = 3;
         * @param value The bytes for readerName to set.
         * @return This builder for chaining.
         */
        public Builder setReaderNameBytes(
            com.google.protobuf.ByteString value) {
          if (value == null) { throw new NullPointerException(); }
          checkByteStringIsUtf8(value);
          readerName_ = value;
          bitField0_ |= 0x00000004;
          onChanged();
          return this;
        }

        private boolean directRead_ ;
        /**
         * 
         * Direct reading from a partition node.
         * 
         *
         * bool direct_read = 4;
         * @return The directRead.
         */
        @java.lang.Override
        public boolean getDirectRead() {
          return directRead_;
        }
        /**
         * 
         * Direct reading from a partition node.
         * 
         *
         * bool direct_read = 4;
         * @param value The directRead to set.
         * @return This builder for chaining.
         */
        public Builder setDirectRead(boolean value) {

          directRead_ = value;
          bitField0_ |= 0x00000008;
          onChanged();
          return this;
        }
        /**
         * 
         * Direct reading from a partition node.
         * 
         *
         * bool direct_read = 4;
         * @return This builder for chaining.
         */
        public Builder clearDirectRead() {
          bitField0_ = (bitField0_ & ~0x00000008);
          directRead_ = false;
          onChanged();
          return this;
        }
        @java.lang.Override
        public final Builder setUnknownFields(
            final com.google.protobuf.UnknownFieldSet unknownFields) {
          return super.setUnknownFields(unknownFields);
        }

        @java.lang.Override
        public final Builder mergeUnknownFields(
            final com.google.protobuf.UnknownFieldSet unknownFields) {
          return super.mergeUnknownFields(unknownFields);
        }


        // @@protoc_insertion_point(builder_scope:Ydb.Topic.StreamReadMessage.InitRequest)
      }

      // @@protoc_insertion_point(class_scope:Ydb.Topic.StreamReadMessage.InitRequest)
      private static final tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest DEFAULT_INSTANCE;
      static {
        DEFAULT_INSTANCE = new tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest();
      }

      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest getDefaultInstance() {
        return DEFAULT_INSTANCE;
      }

      private static final com.google.protobuf.Parser
          PARSER = new com.google.protobuf.AbstractParser() {
        @java.lang.Override
        public InitRequest parsePartialFrom(
            com.google.protobuf.CodedInputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws com.google.protobuf.InvalidProtocolBufferException {
          Builder builder = newBuilder();
          try {
            builder.mergeFrom(input, extensionRegistry);
          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
            throw e.setUnfinishedMessage(builder.buildPartial());
          } catch (com.google.protobuf.UninitializedMessageException e) {
            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
          } catch (java.io.IOException e) {
            throw new com.google.protobuf.InvalidProtocolBufferException(e)
                .setUnfinishedMessage(builder.buildPartial());
          }
          return builder.buildPartial();
        }
      };

      public static com.google.protobuf.Parser parser() {
        return PARSER;
      }

      @java.lang.Override
      public com.google.protobuf.Parser getParserForType() {
        return PARSER;
      }

      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitRequest getDefaultInstanceForType() {
        return DEFAULT_INSTANCE;
      }

    }

    public interface InitResponseOrBuilder extends
        // @@protoc_insertion_point(interface_extends:Ydb.Topic.StreamReadMessage.InitResponse)
        com.google.protobuf.MessageOrBuilder {

      /**
       * 
       * Read session identifier.
       * 
       *
       * string session_id = 1;
       * @return The sessionId.
       */
      java.lang.String getSessionId();
      /**
       * 
       * Read session identifier.
       * 
       *
       * string session_id = 1;
       * @return The bytes for sessionId.
       */
      com.google.protobuf.ByteString
          getSessionIdBytes();
    }
    /**
     * 
     * Handshake response.
     * 
     *
     * Protobuf type {@code Ydb.Topic.StreamReadMessage.InitResponse}
     */
    public static final class InitResponse extends
        com.google.protobuf.GeneratedMessageV3 implements
        // @@protoc_insertion_point(message_implements:Ydb.Topic.StreamReadMessage.InitResponse)
        InitResponseOrBuilder {
    private static final long serialVersionUID = 0L;
      // Use InitResponse.newBuilder() to construct.
      private InitResponse(com.google.protobuf.GeneratedMessageV3.Builder builder) {
        super(builder);
      }
      private InitResponse() {
        sessionId_ = "";
      }

      @java.lang.Override
      @SuppressWarnings({"unused"})
      protected java.lang.Object newInstance(
          UnusedPrivateParameter unused) {
        return new InitResponse();
      }

      public static final com.google.protobuf.Descriptors.Descriptor
          getDescriptor() {
        return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamReadMessage_InitResponse_descriptor;
      }

      @java.lang.Override
      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
          internalGetFieldAccessorTable() {
        return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamReadMessage_InitResponse_fieldAccessorTable
            .ensureFieldAccessorsInitialized(
                tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitResponse.class, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitResponse.Builder.class);
      }

      public static final int SESSION_ID_FIELD_NUMBER = 1;
      @SuppressWarnings("serial")
      private volatile java.lang.Object sessionId_ = "";
      /**
       * 
       * Read session identifier.
       * 
       *
       * string session_id = 1;
       * @return The sessionId.
       */
      @java.lang.Override
      public java.lang.String getSessionId() {
        java.lang.Object ref = sessionId_;
        if (ref instanceof java.lang.String) {
          return (java.lang.String) ref;
        } else {
          com.google.protobuf.ByteString bs = 
              (com.google.protobuf.ByteString) ref;
          java.lang.String s = bs.toStringUtf8();
          sessionId_ = s;
          return s;
        }
      }
      /**
       * 
       * Read session identifier.
       * 
       *
       * string session_id = 1;
       * @return The bytes for sessionId.
       */
      @java.lang.Override
      public com.google.protobuf.ByteString
          getSessionIdBytes() {
        java.lang.Object ref = sessionId_;
        if (ref instanceof java.lang.String) {
          com.google.protobuf.ByteString b = 
              com.google.protobuf.ByteString.copyFromUtf8(
                  (java.lang.String) ref);
          sessionId_ = b;
          return b;
        } else {
          return (com.google.protobuf.ByteString) ref;
        }
      }

      private byte memoizedIsInitialized = -1;
      @java.lang.Override
      public final boolean isInitialized() {
        byte isInitialized = memoizedIsInitialized;
        if (isInitialized == 1) return true;
        if (isInitialized == 0) return false;

        memoizedIsInitialized = 1;
        return true;
      }

      @java.lang.Override
      public void writeTo(com.google.protobuf.CodedOutputStream output)
                          throws java.io.IOException {
        if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(sessionId_)) {
          com.google.protobuf.GeneratedMessageV3.writeString(output, 1, sessionId_);
        }
        getUnknownFields().writeTo(output);
      }

      @java.lang.Override
      public int getSerializedSize() {
        int size = memoizedSize;
        if (size != -1) return size;

        size = 0;
        if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(sessionId_)) {
          size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, sessionId_);
        }
        size += getUnknownFields().getSerializedSize();
        memoizedSize = size;
        return size;
      }

      @java.lang.Override
      public boolean equals(final java.lang.Object obj) {
        if (obj == this) {
         return true;
        }
        if (!(obj instanceof tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitResponse)) {
          return super.equals(obj);
        }
        tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitResponse other = (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.InitResponse) obj;

        if (!getSessionId()
            .equals(other.getSessionId())) return false;
        if (!getUnknownFields().equals(other.getUnknownFields())) return false;
        return true;
      }

      @java.lang.Override
      public int hashCode() {
        if (memoizedHashCode != 0) {
          return memoizedHashCode;
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         * But there is an exception. If server receives ReadRequest, and the first message in response exceeds A -
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         * Server and client each keep track of total bytes size of all ReadResponses.
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         * bytes_size value must be positive.
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         * But there is an exception. If server receives ReadRequest, and the first message in response exceeds A -
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         * Example:
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      /**
       * 
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       * 
       *
       * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.PartitionData partition_data = 1;
       */
      java.util.List 
          getPartitionDataList();
      /**
       * 
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       * 
       *
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       */
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      /**
       * 
       * Client messages, divided by partitions.
       * 
       *
       * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.PartitionData partition_data = 1;
       */
      int getPartitionDataCount();
      /**
       * 
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       * 
       *
       * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.PartitionData partition_data = 1;
       */
      java.util.List 
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      /**
       * 
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       * 
       *
       * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.PartitionData partition_data = 1;
       */
      tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionDataOrBuilder getPartitionDataOrBuilder(
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      /**
       * 
       * Total size in bytes of this response as calculated by server.
       * See ReadRequest comment above.
       * 
       *
       * int64 bytes_size = 2;
       * @return The bytesSize.
       */
      long getBytesSize();
    }
    /**
     * 
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     * 
     *
     * Protobuf type {@code Ydb.Topic.StreamReadMessage.ReadResponse}
     */
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         * 
         *
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         * 
         *
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         *
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         *
         * .google.protobuf.Timestamp created_at = 3;
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         * 
         *
         * bytes data = 5;
         * @return The data.
         */
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        /**
         * 
         * Uncompressed size of client message body.
         * sent as is from WriteRequest, without check on server side. May be empty (for writes from old client) or wrong (if bug in writer).
         * Use it for optimization purposes only, don't trust it.
         * 
         *
         * int64 uncompressed_size = 6;
         * @return The uncompressedSize.
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        long getUncompressedSize();

        /**
         * 
         * Filled if message_group_id was set on message write.
         * 
         *
         * string message_group_id = 7 [(.Ydb.length) = { ... }
         * @return The messageGroupId.
         */
        java.lang.String getMessageGroupId();
        /**
         * 
         * Filled if message_group_id was set on message write.
         * 
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         */
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         * repeated .Ydb.Topic.MetadataItem metadata_items = 8;
         */
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         */
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         * repeated .Ydb.Topic.MetadataItem metadata_items = 8;
         */
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      /**
       * 
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       * 
       *
       * Protobuf type {@code Ydb.Topic.StreamReadMessage.ReadResponse.MessageData}
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         * 
         *
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        public static final int SEQ_NO_FIELD_NUMBER = 2;
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         * 
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         * 
         *
         * int64 seq_no = 2;
         * @return The seqNo.
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        @java.lang.Override
        public long getSeqNo() {
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         * 
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         * 
         *
         * .google.protobuf.Timestamp created_at = 3;
         * @return Whether the createdAt field is set.
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         * 
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         * .google.protobuf.Timestamp created_at = 3;
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        private com.google.protobuf.ByteString data_ = com.google.protobuf.ByteString.EMPTY;
        /**
         * 
         * Compressed client message body.
         * 
         *
         * bytes data = 5;
         * @return The data.
         */
        @java.lang.Override
        public com.google.protobuf.ByteString getData() {
          return data_;
        }

        public static final int UNCOMPRESSED_SIZE_FIELD_NUMBER = 6;
        private long uncompressedSize_ = 0L;
        /**
         * 
         * Uncompressed size of client message body.
         * sent as is from WriteRequest, without check on server side. May be empty (for writes from old client) or wrong (if bug in writer).
         * Use it for optimization purposes only, don't trust it.
         * 
         *
         * int64 uncompressed_size = 6;
         * @return The uncompressedSize.
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        public static final int MESSAGE_GROUP_ID_FIELD_NUMBER = 7;
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        private volatile java.lang.Object messageGroupId_ = "";
        /**
         * 
         * Filled if message_group_id was set on message write.
         * 
         *
         * string message_group_id = 7 [(.Ydb.length) = { ... }
         * @return The messageGroupId.
         */
        @java.lang.Override
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          java.lang.Object ref = messageGroupId_;
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        /**
         * 
         * Filled if message_group_id was set on message write.
         * 
         *
         * string message_group_id = 7 [(.Ydb.length) = { ... }
         * @return The bytes for messageGroupId.
         */
        @java.lang.Override
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          java.lang.Object ref = messageGroupId_;
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                    (java.lang.String) ref);
            messageGroupId_ = b;
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            return (com.google.protobuf.ByteString) ref;
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        public static final int METADATA_ITEMS_FIELD_NUMBER = 8;
        @SuppressWarnings("serial")
        private java.util.List metadataItems_;
        /**
         * repeated .Ydb.Topic.MetadataItem metadata_items = 8;
         */
        @java.lang.Override
        public java.util.List getMetadataItemsList() {
          return metadataItems_;
        }
        /**
         * repeated .Ydb.Topic.MetadataItem metadata_items = 8;
         */
        @java.lang.Override
        public java.util.List 
            getMetadataItemsOrBuilderList() {
          return metadataItems_;
        }
        /**
         * repeated .Ydb.Topic.MetadataItem metadata_items = 8;
         */
        @java.lang.Override
        public int getMetadataItemsCount() {
          return metadataItems_.size();
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        /**
         * repeated .Ydb.Topic.MetadataItem metadata_items = 8;
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.MetadataItem getMetadataItems(int index) {
          return metadataItems_.get(index);
        }
        /**
         * repeated .Ydb.Topic.MetadataItem metadata_items = 8;
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.MetadataItemOrBuilder getMetadataItemsOrBuilder(
            int index) {
          return metadataItems_.get(index);
        }

        private byte memoizedIsInitialized = -1;
        @java.lang.Override
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          byte isInitialized = memoizedIsInitialized;
          if (isInitialized == 1) return true;
          if (isInitialized == 0) return false;

          memoizedIsInitialized = 1;
          return true;
        }

        @java.lang.Override
        public void writeTo(com.google.protobuf.CodedOutputStream output)
                            throws java.io.IOException {
          if (offset_ != 0L) {
            output.writeInt64(1, offset_);
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                  com.google.protobuf.Timestamp, com.google.protobuf.Timestamp.Builder, com.google.protobuf.TimestampOrBuilder>(
                      getCreatedAt(),
                      getParentForChildren(),
                      isClean());
              createdAt_ = null;
            }
            return createdAtBuilder_;
          }

          private com.google.protobuf.ByteString data_ = com.google.protobuf.ByteString.EMPTY;
          /**
           * 
           * Compressed client message body.
           * 
           *
           * bytes data = 5;
           * @return The data.
           */
          @java.lang.Override
          public com.google.protobuf.ByteString getData() {
            return data_;
          }
          /**
           * 
           * Compressed client message body.
           * 
           *
           * bytes data = 5;
           * @param value The data to set.
           * @return This builder for chaining.
           */
          public Builder setData(com.google.protobuf.ByteString value) {
            if (value == null) { throw new NullPointerException(); }
            data_ = value;
            bitField0_ |= 0x00000008;
            onChanged();
            return this;
          }
          /**
           * 
           * Compressed client message body.
           * 
           *
           * bytes data = 5;
           * @return This builder for chaining.
           */
          public Builder clearData() {
            bitField0_ = (bitField0_ & ~0x00000008);
            data_ = getDefaultInstance().getData();
            onChanged();
            return this;
          }

          private long uncompressedSize_ ;
          /**
           * 
           * Uncompressed size of client message body.
           * sent as is from WriteRequest, without check on server side. May be empty (for writes from old client) or wrong (if bug in writer).
           * Use it for optimization purposes only, don't trust it.
           * 
           *
           * int64 uncompressed_size = 6;
           * @return The uncompressedSize.
           */
          @java.lang.Override
          public long getUncompressedSize() {
            return uncompressedSize_;
          }
          /**
           * 
           * Uncompressed size of client message body.
           * sent as is from WriteRequest, without check on server side. May be empty (for writes from old client) or wrong (if bug in writer).
           * Use it for optimization purposes only, don't trust it.
           * 
           *
           * int64 uncompressed_size = 6;
           * @param value The uncompressedSize to set.
           * @return This builder for chaining.
           */
          public Builder setUncompressedSize(long value) {

            uncompressedSize_ = value;
            bitField0_ |= 0x00000010;
            onChanged();
            return this;
          }
          /**
           * 
           * Uncompressed size of client message body.
           * sent as is from WriteRequest, without check on server side. May be empty (for writes from old client) or wrong (if bug in writer).
           * Use it for optimization purposes only, don't trust it.
           * 
           *
           * int64 uncompressed_size = 6;
           * @return This builder for chaining.
           */
          public Builder clearUncompressedSize() {
            bitField0_ = (bitField0_ & ~0x00000010);
            uncompressedSize_ = 0L;
            onChanged();
            return this;
          }

          private java.lang.Object messageGroupId_ = "";
          /**
           * 
           * Filled if message_group_id was set on message write.
           * 
           *
           * string message_group_id = 7 [(.Ydb.length) = { ... }
           * @return The messageGroupId.
           */
          public java.lang.String getMessageGroupId() {
            java.lang.Object ref = messageGroupId_;
            if (!(ref instanceof java.lang.String)) {
              com.google.protobuf.ByteString bs =
                  (com.google.protobuf.ByteString) ref;
              java.lang.String s = bs.toStringUtf8();
              messageGroupId_ = s;
              return s;
            } else {
              return (java.lang.String) ref;
            }
          }
          /**
           * 
           * Filled if message_group_id was set on message write.
           * 
           *
           * string message_group_id = 7 [(.Ydb.length) = { ... }
           * @return The bytes for messageGroupId.
           */
          public com.google.protobuf.ByteString
              getMessageGroupIdBytes() {
            java.lang.Object ref = messageGroupId_;
            if (ref instanceof String) {
              com.google.protobuf.ByteString b = 
                  com.google.protobuf.ByteString.copyFromUtf8(
                      (java.lang.String) ref);
              messageGroupId_ = b;
              return b;
            } else {
              return (com.google.protobuf.ByteString) ref;
            }
          }
          /**
           * 
           * Filled if message_group_id was set on message write.
           * 
           *
           * string message_group_id = 7 [(.Ydb.length) = { ... }
           * @param value The messageGroupId to set.
           * @return This builder for chaining.
           */
          public Builder setMessageGroupId(
              java.lang.String value) {
            if (value == null) { throw new NullPointerException(); }
            messageGroupId_ = value;
            bitField0_ |= 0x00000020;
            onChanged();
            return this;
          }
          /**
           * 
           * Filled if message_group_id was set on message write.
           * 
           *
           * string message_group_id = 7 [(.Ydb.length) = { ... }
           * @return This builder for chaining.
           */
          public Builder clearMessageGroupId() {
            messageGroupId_ = getDefaultInstance().getMessageGroupId();
            bitField0_ = (bitField0_ & ~0x00000020);
            onChanged();
            return this;
          }
          /**
           * 
           * Filled if message_group_id was set on message write.
           * 
           *
           * string message_group_id = 7 [(.Ydb.length) = { ... }
           * @param value The bytes for messageGroupId to set.
           * @return This builder for chaining.
           */
          public Builder setMessageGroupIdBytes(
              com.google.protobuf.ByteString value) {
            if (value == null) { throw new NullPointerException(); }
            checkByteStringIsUtf8(value);
            messageGroupId_ = value;
            bitField0_ |= 0x00000020;
            onChanged();
            return this;
          }

          private java.util.List metadataItems_ =
            java.util.Collections.emptyList();
          private void ensureMetadataItemsIsMutable() {
            if (!((bitField0_ & 0x00000040) != 0)) {
              metadataItems_ = new java.util.ArrayList(metadataItems_);
              bitField0_ |= 0x00000040;
             }
          }

          private com.google.protobuf.RepeatedFieldBuilderV3<
              tech.ydb.proto.topic.YdbTopic.MetadataItem, tech.ydb.proto.topic.YdbTopic.MetadataItem.Builder, tech.ydb.proto.topic.YdbTopic.MetadataItemOrBuilder> metadataItemsBuilder_;

          /**
           * repeated .Ydb.Topic.MetadataItem metadata_items = 8;
           */
          public java.util.List getMetadataItemsList() {
            if (metadataItemsBuilder_ == null) {
              return java.util.Collections.unmodifiableList(metadataItems_);
            } else {
              return metadataItemsBuilder_.getMessageList();
            }
          }
          /**
           * repeated .Ydb.Topic.MetadataItem metadata_items = 8;
           */
          public int getMetadataItemsCount() {
            if (metadataItemsBuilder_ == null) {
              return metadataItems_.size();
            } else {
              return metadataItemsBuilder_.getCount();
            }
          }
          /**
           * repeated .Ydb.Topic.MetadataItem metadata_items = 8;
           */
          public tech.ydb.proto.topic.YdbTopic.MetadataItem getMetadataItems(int index) {
            if (metadataItemsBuilder_ == null) {
              return metadataItems_.get(index);
            } else {
              return metadataItemsBuilder_.getMessage(index);
            }
          }
          /**
           * repeated .Ydb.Topic.MetadataItem metadata_items = 8;
           */
          public Builder setMetadataItems(
              int index, tech.ydb.proto.topic.YdbTopic.MetadataItem value) {
            if (metadataItemsBuilder_ == null) {
              if (value == null) {
                throw new NullPointerException();
              }
              ensureMetadataItemsIsMutable();
              metadataItems_.set(index, value);
              onChanged();
            } else {
              metadataItemsBuilder_.setMessage(index, value);
            }
            return this;
          }
          /**
           * repeated .Ydb.Topic.MetadataItem metadata_items = 8;
           */
          public Builder setMetadataItems(
              int index, tech.ydb.proto.topic.YdbTopic.MetadataItem.Builder builderForValue) {
            if (metadataItemsBuilder_ == null) {
              ensureMetadataItemsIsMutable();
              metadataItems_.set(index, builderForValue.build());
              onChanged();
            } else {
              metadataItemsBuilder_.setMessage(index, builderForValue.build());
            }
            return this;
          }
          /**
           * repeated .Ydb.Topic.MetadataItem metadata_items = 8;
           */
          public Builder addMetadataItems(tech.ydb.proto.topic.YdbTopic.MetadataItem value) {
            if (metadataItemsBuilder_ == null) {
              if (value == null) {
                throw new NullPointerException();
              }
              ensureMetadataItemsIsMutable();
              metadataItems_.add(value);
              onChanged();
            } else {
              metadataItemsBuilder_.addMessage(value);
            }
            return this;
          }
          /**
           * repeated .Ydb.Topic.MetadataItem metadata_items = 8;
           */
          public Builder addMetadataItems(
              int index, tech.ydb.proto.topic.YdbTopic.MetadataItem value) {
            if (metadataItemsBuilder_ == null) {
              if (value == null) {
                throw new NullPointerException();
              }
              ensureMetadataItemsIsMutable();
              metadataItems_.add(index, value);
              onChanged();
            } else {
              metadataItemsBuilder_.addMessage(index, value);
            }
            return this;
          }
          /**
           * repeated .Ydb.Topic.MetadataItem metadata_items = 8;
           */
          public Builder addMetadataItems(
              tech.ydb.proto.topic.YdbTopic.MetadataItem.Builder builderForValue) {
            if (metadataItemsBuilder_ == null) {
              ensureMetadataItemsIsMutable();
              metadataItems_.add(builderForValue.build());
              onChanged();
            } else {
              metadataItemsBuilder_.addMessage(builderForValue.build());
            }
            return this;
          }
          /**
           * repeated .Ydb.Topic.MetadataItem metadata_items = 8;
           */
          public Builder addMetadataItems(
              int index, tech.ydb.proto.topic.YdbTopic.MetadataItem.Builder builderForValue) {
            if (metadataItemsBuilder_ == null) {
              ensureMetadataItemsIsMutable();
              metadataItems_.add(index, builderForValue.build());
              onChanged();
            } else {
              metadataItemsBuilder_.addMessage(index, builderForValue.build());
            }
            return this;
          }
          /**
           * repeated .Ydb.Topic.MetadataItem metadata_items = 8;
           */
          public Builder addAllMetadataItems(
              java.lang.Iterable values) {
            if (metadataItemsBuilder_ == null) {
              ensureMetadataItemsIsMutable();
              com.google.protobuf.AbstractMessageLite.Builder.addAll(
                  values, metadataItems_);
              onChanged();
            } else {
              metadataItemsBuilder_.addAllMessages(values);
            }
            return this;
          }
          /**
           * repeated .Ydb.Topic.MetadataItem metadata_items = 8;
           */
          public Builder clearMetadataItems() {
            if (metadataItemsBuilder_ == null) {
              metadataItems_ = java.util.Collections.emptyList();
              bitField0_ = (bitField0_ & ~0x00000040);
              onChanged();
            } else {
              metadataItemsBuilder_.clear();
            }
            return this;
          }
          /**
           * repeated .Ydb.Topic.MetadataItem metadata_items = 8;
           */
          public Builder removeMetadataItems(int index) {
            if (metadataItemsBuilder_ == null) {
              ensureMetadataItemsIsMutable();
              metadataItems_.remove(index);
              onChanged();
            } else {
              metadataItemsBuilder_.remove(index);
            }
            return this;
          }
          /**
           * repeated .Ydb.Topic.MetadataItem metadata_items = 8;
           */
          public tech.ydb.proto.topic.YdbTopic.MetadataItem.Builder getMetadataItemsBuilder(
              int index) {
            return getMetadataItemsFieldBuilder().getBuilder(index);
          }
          /**
           * repeated .Ydb.Topic.MetadataItem metadata_items = 8;
           */
          public tech.ydb.proto.topic.YdbTopic.MetadataItemOrBuilder getMetadataItemsOrBuilder(
              int index) {
            if (metadataItemsBuilder_ == null) {
              return metadataItems_.get(index);  } else {
              return metadataItemsBuilder_.getMessageOrBuilder(index);
            }
          }
          /**
           * repeated .Ydb.Topic.MetadataItem metadata_items = 8;
           */
          public java.util.List 
               getMetadataItemsOrBuilderList() {
            if (metadataItemsBuilder_ != null) {
              return metadataItemsBuilder_.getMessageOrBuilderList();
            } else {
              return java.util.Collections.unmodifiableList(metadataItems_);
            }
          }
          /**
           * repeated .Ydb.Topic.MetadataItem metadata_items = 8;
           */
          public tech.ydb.proto.topic.YdbTopic.MetadataItem.Builder addMetadataItemsBuilder() {
            return getMetadataItemsFieldBuilder().addBuilder(
                tech.ydb.proto.topic.YdbTopic.MetadataItem.getDefaultInstance());
          }
          /**
           * repeated .Ydb.Topic.MetadataItem metadata_items = 8;
           */
          public tech.ydb.proto.topic.YdbTopic.MetadataItem.Builder addMetadataItemsBuilder(
              int index) {
            return getMetadataItemsFieldBuilder().addBuilder(
                index, tech.ydb.proto.topic.YdbTopic.MetadataItem.getDefaultInstance());
          }
          /**
           * repeated .Ydb.Topic.MetadataItem metadata_items = 8;
           */
          public java.util.List 
               getMetadataItemsBuilderList() {
            return getMetadataItemsFieldBuilder().getBuilderList();
          }
          private com.google.protobuf.RepeatedFieldBuilderV3<
              tech.ydb.proto.topic.YdbTopic.MetadataItem, tech.ydb.proto.topic.YdbTopic.MetadataItem.Builder, tech.ydb.proto.topic.YdbTopic.MetadataItemOrBuilder> 
              getMetadataItemsFieldBuilder() {
            if (metadataItemsBuilder_ == null) {
              metadataItemsBuilder_ = new com.google.protobuf.RepeatedFieldBuilderV3<
                  tech.ydb.proto.topic.YdbTopic.MetadataItem, tech.ydb.proto.topic.YdbTopic.MetadataItem.Builder, tech.ydb.proto.topic.YdbTopic.MetadataItemOrBuilder>(
                      metadataItems_,
                      ((bitField0_ & 0x00000040) != 0),
                      getParentForChildren(),
                      isClean());
              metadataItems_ = null;
            }
            return metadataItemsBuilder_;
          }
          @java.lang.Override
          public final Builder setUnknownFields(
              final com.google.protobuf.UnknownFieldSet unknownFields) {
            return super.setUnknownFields(unknownFields);
          }

          @java.lang.Override
          public final Builder mergeUnknownFields(
              final com.google.protobuf.UnknownFieldSet unknownFields) {
            return super.mergeUnknownFields(unknownFields);
          }


          // @@protoc_insertion_point(builder_scope:Ydb.Topic.StreamReadMessage.ReadResponse.MessageData)
        }

        // @@protoc_insertion_point(class_scope:Ydb.Topic.StreamReadMessage.ReadResponse.MessageData)
        private static final tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.MessageData DEFAULT_INSTANCE;
        static {
          DEFAULT_INSTANCE = new tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.MessageData();
        }

        public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.MessageData getDefaultInstance() {
          return DEFAULT_INSTANCE;
        }

        private static final com.google.protobuf.Parser
            PARSER = new com.google.protobuf.AbstractParser() {
          @java.lang.Override
          public MessageData parsePartialFrom(
              com.google.protobuf.CodedInputStream input,
              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
              throws com.google.protobuf.InvalidProtocolBufferException {
            Builder builder = newBuilder();
            try {
              builder.mergeFrom(input, extensionRegistry);
            } catch (com.google.protobuf.InvalidProtocolBufferException e) {
              throw e.setUnfinishedMessage(builder.buildPartial());
            } catch (com.google.protobuf.UninitializedMessageException e) {
              throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
            } catch (java.io.IOException e) {
              throw new com.google.protobuf.InvalidProtocolBufferException(e)
                  .setUnfinishedMessage(builder.buildPartial());
            }
            return builder.buildPartial();
          }
        };

        public static com.google.protobuf.Parser parser() {
          return PARSER;
        }

        @java.lang.Override
        public com.google.protobuf.Parser getParserForType() {
          return PARSER;
        }

        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.MessageData getDefaultInstanceForType() {
          return DEFAULT_INSTANCE;
        }

      }

      public interface BatchOrBuilder extends
          // @@protoc_insertion_point(interface_extends:Ydb.Topic.StreamReadMessage.ReadResponse.Batch)
          com.google.protobuf.MessageOrBuilder {

        /**
         * 
         * List of client messages.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.MessageData message_data = 1;
         */
        java.util.List 
            getMessageDataList();
        /**
         * 
         * List of client messages.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.MessageData message_data = 1;
         */
        tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.MessageData getMessageData(int index);
        /**
         * 
         * List of client messages.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.MessageData message_data = 1;
         */
        int getMessageDataCount();
        /**
         * 
         * List of client messages.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.MessageData message_data = 1;
         */
        java.util.List 
            getMessageDataOrBuilderList();
        /**
         * 
         * List of client messages.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.MessageData message_data = 1;
         */
        tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.MessageDataOrBuilder getMessageDataOrBuilder(
            int index);

        /**
         * 
         * Producer identifier provided by client for this batch of client messages.
         * 
         *
         * string producer_id = 2 [(.Ydb.length) = { ... }
         * @return The producerId.
         */
        java.lang.String getProducerId();
        /**
         * 
         * Producer identifier provided by client for this batch of client messages.
         * 
         *
         * string producer_id = 2 [(.Ydb.length) = { ... }
         * @return The bytes for producerId.
         */
        com.google.protobuf.ByteString
            getProducerIdBytes();

        /**
         * 
         * Client metadata attached to write session, the same for all messages in batch.
         * 
         *
         * map<string, string> write_session_meta = 3;
         */
        int getWriteSessionMetaCount();
        /**
         * 
         * Client metadata attached to write session, the same for all messages in batch.
         * 
         *
         * map<string, string> write_session_meta = 3;
         */
        boolean containsWriteSessionMeta(
            java.lang.String key);
        /**
         * Use {@link #getWriteSessionMetaMap()} instead.
         */
        @java.lang.Deprecated
        java.util.Map
        getWriteSessionMeta();
        /**
         * 
         * Client metadata attached to write session, the same for all messages in batch.
         * 
         *
         * map<string, string> write_session_meta = 3;
         */
        java.util.Map
        getWriteSessionMetaMap();
        /**
         * 
         * Client metadata attached to write session, the same for all messages in batch.
         * 
         *
         * map<string, string> write_session_meta = 3;
         */
        /* nullable */
java.lang.String getWriteSessionMetaOrDefault(
            java.lang.String key,
            /* nullable */
java.lang.String defaultValue);
        /**
         * 
         * Client metadata attached to write session, the same for all messages in batch.
         * 
         *
         * map<string, string> write_session_meta = 3;
         */
        java.lang.String getWriteSessionMetaOrThrow(
            java.lang.String key);

        /**
         * 
         * Codec that is used for data compression.
         * See enum Codec above for values.
         * 
         *
         * int32 codec = 4;
         * @return The codec.
         */
        int getCodec();

        /**
         * 
         * Persist timestamp on server for batch.
         * 
         *
         * .google.protobuf.Timestamp written_at = 5;
         * @return Whether the writtenAt field is set.
         */
        boolean hasWrittenAt();
        /**
         * 
         * Persist timestamp on server for batch.
         * 
         *
         * .google.protobuf.Timestamp written_at = 5;
         * @return The writtenAt.
         */
        com.google.protobuf.Timestamp getWrittenAt();
        /**
         * 
         * Persist timestamp on server for batch.
         * 
         *
         * .google.protobuf.Timestamp written_at = 5;
         */
        com.google.protobuf.TimestampOrBuilder getWrittenAtOrBuilder();
      }
      /**
       * 
       * Representation of sequence of client messages from one write session.
       * 
       *
       * Protobuf type {@code Ydb.Topic.StreamReadMessage.ReadResponse.Batch}
       */
      public static final class Batch extends
          com.google.protobuf.GeneratedMessageV3 implements
          // @@protoc_insertion_point(message_implements:Ydb.Topic.StreamReadMessage.ReadResponse.Batch)
          BatchOrBuilder {
      private static final long serialVersionUID = 0L;
        // Use Batch.newBuilder() to construct.
        private Batch(com.google.protobuf.GeneratedMessageV3.Builder builder) {
          super(builder);
        }
        private Batch() {
          messageData_ = java.util.Collections.emptyList();
          producerId_ = "";
        }

        @java.lang.Override
        @SuppressWarnings({"unused"})
        protected java.lang.Object newInstance(
            UnusedPrivateParameter unused) {
          return new Batch();
        }

        public static final com.google.protobuf.Descriptors.Descriptor
            getDescriptor() {
          return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamReadMessage_ReadResponse_Batch_descriptor;
        }

        @SuppressWarnings({"rawtypes"})
        @java.lang.Override
        protected com.google.protobuf.MapField internalGetMapField(
            int number) {
          switch (number) {
            case 3:
              return internalGetWriteSessionMeta();
            default:
              throw new RuntimeException(
                  "Invalid map field number: " + number);
          }
        }
        @java.lang.Override
        protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
            internalGetFieldAccessorTable() {
          return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamReadMessage_ReadResponse_Batch_fieldAccessorTable
              .ensureFieldAccessorsInitialized(
                  tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.Batch.class, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.Batch.Builder.class);
        }

        private int bitField0_;
        public static final int MESSAGE_DATA_FIELD_NUMBER = 1;
        @SuppressWarnings("serial")
        private java.util.List messageData_;
        /**
         * 
         * List of client messages.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.MessageData message_data = 1;
         */
        @java.lang.Override
        public java.util.List getMessageDataList() {
          return messageData_;
        }
        /**
         * 
         * List of client messages.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.MessageData message_data = 1;
         */
        @java.lang.Override
        public java.util.List 
            getMessageDataOrBuilderList() {
          return messageData_;
        }
        /**
         * 
         * List of client messages.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.MessageData message_data = 1;
         */
        @java.lang.Override
        public int getMessageDataCount() {
          return messageData_.size();
        }
        /**
         * 
         * List of client messages.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.MessageData message_data = 1;
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.MessageData getMessageData(int index) {
          return messageData_.get(index);
        }
        /**
         * 
         * List of client messages.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.MessageData message_data = 1;
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.MessageDataOrBuilder getMessageDataOrBuilder(
            int index) {
          return messageData_.get(index);
        }

        public static final int PRODUCER_ID_FIELD_NUMBER = 2;
        @SuppressWarnings("serial")
        private volatile java.lang.Object producerId_ = "";
        /**
         * 
         * Producer identifier provided by client for this batch of client messages.
         * 
         *
         * string producer_id = 2 [(.Ydb.length) = { ... }
         * @return The producerId.
         */
        @java.lang.Override
        public java.lang.String getProducerId() {
          java.lang.Object ref = producerId_;
          if (ref instanceof java.lang.String) {
            return (java.lang.String) ref;
          } else {
            com.google.protobuf.ByteString bs = 
                (com.google.protobuf.ByteString) ref;
            java.lang.String s = bs.toStringUtf8();
            producerId_ = s;
            return s;
          }
        }
        /**
         * 
         * Producer identifier provided by client for this batch of client messages.
         * 
         *
         * string producer_id = 2 [(.Ydb.length) = { ... }
         * @return The bytes for producerId.
         */
        @java.lang.Override
        public com.google.protobuf.ByteString
            getProducerIdBytes() {
          java.lang.Object ref = producerId_;
          if (ref instanceof java.lang.String) {
            com.google.protobuf.ByteString b = 
                com.google.protobuf.ByteString.copyFromUtf8(
                    (java.lang.String) ref);
            producerId_ = b;
            return b;
          } else {
            return (com.google.protobuf.ByteString) ref;
          }
        }

        public static final int WRITE_SESSION_META_FIELD_NUMBER = 3;
        private static final class WriteSessionMetaDefaultEntryHolder {
          static final com.google.protobuf.MapEntry<
              java.lang.String, java.lang.String> defaultEntry =
                  com.google.protobuf.MapEntry
                  .newDefaultInstance(
                      tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamReadMessage_ReadResponse_Batch_WriteSessionMetaEntry_descriptor, 
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              onChanged();
            } else {
              messageDataBuilder_.setMessage(index, value);
            }
            return this;
          }
          /**
           * 
           * List of client messages.
           * 
           *
           * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.MessageData message_data = 1;
           */
          public Builder setMessageData(
              int index, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.MessageData.Builder builderForValue) {
            if (messageDataBuilder_ == null) {
              ensureMessageDataIsMutable();
              messageData_.set(index, builderForValue.build());
              onChanged();
            } else {
              messageDataBuilder_.setMessage(index, builderForValue.build());
            }
            return this;
          }
          /**
           * 
           * List of client messages.
           * 
           *
           * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.MessageData message_data = 1;
           */
          public Builder addMessageData(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.MessageData value) {
            if (messageDataBuilder_ == null) {
              if (value == null) {
                throw new NullPointerException();
              }
              ensureMessageDataIsMutable();
              messageData_.add(value);
              onChanged();
            } else {
              messageDataBuilder_.addMessage(value);
            }
            return this;
          }
          /**
           * 
           * List of client messages.
           * 
           *
           * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.MessageData message_data = 1;
           */
          public Builder addMessageData(
              int index, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.MessageData value) {
            if (messageDataBuilder_ == null) {
              if (value == null) {
                throw new NullPointerException();
              }
              ensureMessageDataIsMutable();
              messageData_.add(index, value);
              onChanged();
            } else {
              messageDataBuilder_.addMessage(index, value);
            }
            return this;
          }
          /**
           * 
           * List of client messages.
           * 
           *
           * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.MessageData message_data = 1;
           */
          public Builder addMessageData(
              tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.MessageData.Builder builderForValue) {
            if (messageDataBuilder_ == null) {
              ensureMessageDataIsMutable();
              messageData_.add(builderForValue.build());
              onChanged();
            } else {
              messageDataBuilder_.addMessage(builderForValue.build());
            }
            return this;
          }
          /**
           * 
           * List of client messages.
           * 
           *
           * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.MessageData message_data = 1;
           */
          public Builder addMessageData(
              int index, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.MessageData.Builder builderForValue) {
            if (messageDataBuilder_ == null) {
              ensureMessageDataIsMutable();
              messageData_.add(index, builderForValue.build());
              onChanged();
            } else {
              messageDataBuilder_.addMessage(index, builderForValue.build());
            }
            return this;
          }
          /**
           * 
           * List of client messages.
           * 
           *
           * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.MessageData message_data = 1;
           */
          public Builder addAllMessageData(
              java.lang.Iterable values) {
            if (messageDataBuilder_ == null) {
              ensureMessageDataIsMutable();
              com.google.protobuf.AbstractMessageLite.Builder.addAll(
                  values, messageData_);
              onChanged();
            } else {
              messageDataBuilder_.addAllMessages(values);
            }
            return this;
          }
          /**
           * 
           * List of client messages.
           * 
           *
           * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.MessageData message_data = 1;
           */
          public Builder clearMessageData() {
            if (messageDataBuilder_ == null) {
              messageData_ = java.util.Collections.emptyList();
              bitField0_ = (bitField0_ & ~0x00000001);
              onChanged();
            } else {
              messageDataBuilder_.clear();
            }
            return this;
          }
          /**
           * 
           * List of client messages.
           * 
           *
           * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.MessageData message_data = 1;
           */
          public Builder removeMessageData(int index) {
            if (messageDataBuilder_ == null) {
              ensureMessageDataIsMutable();
              messageData_.remove(index);
              onChanged();
            } else {
              messageDataBuilder_.remove(index);
            }
            return this;
          }
          /**
           * 
           * List of client messages.
           * 
           *
           * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.MessageData message_data = 1;
           */
          public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.MessageData.Builder getMessageDataBuilder(
              int index) {
            return getMessageDataFieldBuilder().getBuilder(index);
          }
          /**
           * 
           * List of client messages.
           * 
           *
           * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.MessageData message_data = 1;
           */
          public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.MessageDataOrBuilder getMessageDataOrBuilder(
              int index) {
            if (messageDataBuilder_ == null) {
              return messageData_.get(index);  } else {
              return messageDataBuilder_.getMessageOrBuilder(index);
            }
          }
          /**
           * 
           * List of client messages.
           * 
           *
           * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.MessageData message_data = 1;
           */
          public java.util.List 
               getMessageDataOrBuilderList() {
            if (messageDataBuilder_ != null) {
              return messageDataBuilder_.getMessageOrBuilderList();
            } else {
              return java.util.Collections.unmodifiableList(messageData_);
            }
          }
          /**
           * 
           * List of client messages.
           * 
           *
           * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.MessageData message_data = 1;
           */
          public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.MessageData.Builder addMessageDataBuilder() {
            return getMessageDataFieldBuilder().addBuilder(
                tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.MessageData.getDefaultInstance());
          }
          /**
           * 
           * List of client messages.
           * 
           *
           * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.MessageData message_data = 1;
           */
          public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.MessageData.Builder addMessageDataBuilder(
              int index) {
            return getMessageDataFieldBuilder().addBuilder(
                index, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.MessageData.getDefaultInstance());
          }
          /**
           * 
           * List of client messages.
           * 
           *
           * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.MessageData message_data = 1;
           */
          public java.util.List 
               getMessageDataBuilderList() {
            return getMessageDataFieldBuilder().getBuilderList();
          }
          private com.google.protobuf.RepeatedFieldBuilderV3<
              tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.MessageData, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.MessageData.Builder, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.MessageDataOrBuilder> 
              getMessageDataFieldBuilder() {
            if (messageDataBuilder_ == null) {
              messageDataBuilder_ = new com.google.protobuf.RepeatedFieldBuilderV3<
                  tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.MessageData, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.MessageData.Builder, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.MessageDataOrBuilder>(
                      messageData_,
                      ((bitField0_ & 0x00000001) != 0),
                      getParentForChildren(),
                      isClean());
              messageData_ = null;
            }
            return messageDataBuilder_;
          }

          private java.lang.Object producerId_ = "";
          /**
           * 
           * Producer identifier provided by client for this batch of client messages.
           * 
           *
           * string producer_id = 2 [(.Ydb.length) = { ... }
           * @return The producerId.
           */
          public java.lang.String getProducerId() {
            java.lang.Object ref = producerId_;
            if (!(ref instanceof java.lang.String)) {
              com.google.protobuf.ByteString bs =
                  (com.google.protobuf.ByteString) ref;
              java.lang.String s = bs.toStringUtf8();
              producerId_ = s;
              return s;
            } else {
              return (java.lang.String) ref;
            }
          }
          /**
           * 
           * Producer identifier provided by client for this batch of client messages.
           * 
           *
           * string producer_id = 2 [(.Ydb.length) = { ... }
           * @return The bytes for producerId.
           */
          public com.google.protobuf.ByteString
              getProducerIdBytes() {
            java.lang.Object ref = producerId_;
            if (ref instanceof String) {
              com.google.protobuf.ByteString b = 
                  com.google.protobuf.ByteString.copyFromUtf8(
                      (java.lang.String) ref);
              producerId_ = b;
              return b;
            } else {
              return (com.google.protobuf.ByteString) ref;
            }
          }
          /**
           * 
           * Producer identifier provided by client for this batch of client messages.
           * 
           *
           * string producer_id = 2 [(.Ydb.length) = { ... }
           * @param value The producerId to set.
           * @return This builder for chaining.
           */
          public Builder setProducerId(
              java.lang.String value) {
            if (value == null) { throw new NullPointerException(); }
            producerId_ = value;
            bitField0_ |= 0x00000002;
            onChanged();
            return this;
          }
          /**
           * 
           * Producer identifier provided by client for this batch of client messages.
           * 
           *
           * string producer_id = 2 [(.Ydb.length) = { ... }
           * @return This builder for chaining.
           */
          public Builder clearProducerId() {
            producerId_ = getDefaultInstance().getProducerId();
            bitField0_ = (bitField0_ & ~0x00000002);
            onChanged();
            return this;
          }
          /**
           * 
           * Producer identifier provided by client for this batch of client messages.
           * 
           *
           * string producer_id = 2 [(.Ydb.length) = { ... }
           * @param value The bytes for producerId to set.
           * @return This builder for chaining.
           */
          public Builder setProducerIdBytes(
              com.google.protobuf.ByteString value) {
            if (value == null) { throw new NullPointerException(); }
            checkByteStringIsUtf8(value);
            producerId_ = value;
            bitField0_ |= 0x00000002;
            onChanged();
            return this;
          }

          private com.google.protobuf.MapField<
              java.lang.String, java.lang.String> writeSessionMeta_;
          private com.google.protobuf.MapField
              internalGetWriteSessionMeta() {
            if (writeSessionMeta_ == null) {
              return com.google.protobuf.MapField.emptyMapField(
                  WriteSessionMetaDefaultEntryHolder.defaultEntry);
            }
            return writeSessionMeta_;
          }
          private com.google.protobuf.MapField
              internalGetMutableWriteSessionMeta() {
            if (writeSessionMeta_ == null) {
              writeSessionMeta_ = com.google.protobuf.MapField.newMapField(
                  WriteSessionMetaDefaultEntryHolder.defaultEntry);
            }
            if (!writeSessionMeta_.isMutable()) {
              writeSessionMeta_ = writeSessionMeta_.copy();
            }
            bitField0_ |= 0x00000004;
            onChanged();
            return writeSessionMeta_;
          }
          public int getWriteSessionMetaCount() {
            return internalGetWriteSessionMeta().getMap().size();
          }
          /**
           * 
           * Client metadata attached to write session, the same for all messages in batch.
           * 
           *
           * map<string, string> write_session_meta = 3;
           */
          @java.lang.Override
          public boolean containsWriteSessionMeta(
              java.lang.String key) {
            if (key == null) { throw new NullPointerException("map key"); }
            return internalGetWriteSessionMeta().getMap().containsKey(key);
          }
          /**
           * Use {@link #getWriteSessionMetaMap()} instead.
           */
          @java.lang.Override
          @java.lang.Deprecated
          public java.util.Map getWriteSessionMeta() {
            return getWriteSessionMetaMap();
          }
          /**
           * 
           * Client metadata attached to write session, the same for all messages in batch.
           * 
           *
           * map<string, string> write_session_meta = 3;
           */
          @java.lang.Override
          public java.util.Map getWriteSessionMetaMap() {
            return internalGetWriteSessionMeta().getMap();
          }
          /**
           * 
           * Client metadata attached to write session, the same for all messages in batch.
           * 
           *
           * map<string, string> write_session_meta = 3;
           */
          @java.lang.Override
          public /* nullable */
java.lang.String getWriteSessionMetaOrDefault(
              java.lang.String key,
              /* nullable */
java.lang.String defaultValue) {
            if (key == null) { throw new NullPointerException("map key"); }
            java.util.Map map =
                internalGetWriteSessionMeta().getMap();
            return map.containsKey(key) ? map.get(key) : defaultValue;
          }
          /**
           * 
           * Client metadata attached to write session, the same for all messages in batch.
           * 
           *
           * map<string, string> write_session_meta = 3;
           */
          @java.lang.Override
          public java.lang.String getWriteSessionMetaOrThrow(
              java.lang.String key) {
            if (key == null) { throw new NullPointerException("map key"); }
            java.util.Map map =
                internalGetWriteSessionMeta().getMap();
            if (!map.containsKey(key)) {
              throw new java.lang.IllegalArgumentException();
            }
            return map.get(key);
          }
          public Builder clearWriteSessionMeta() {
            bitField0_ = (bitField0_ & ~0x00000004);
            internalGetMutableWriteSessionMeta().getMutableMap()
                .clear();
            return this;
          }
          /**
           * 
           * Client metadata attached to write session, the same for all messages in batch.
           * 
           *
           * map<string, string> write_session_meta = 3;
           */
          public Builder removeWriteSessionMeta(
              java.lang.String key) {
            if (key == null) { throw new NullPointerException("map key"); }
            internalGetMutableWriteSessionMeta().getMutableMap()
                .remove(key);
            return this;
          }
          /**
           * Use alternate mutation accessors instead.
           */
          @java.lang.Deprecated
          public java.util.Map
              getMutableWriteSessionMeta() {
            bitField0_ |= 0x00000004;
            return internalGetMutableWriteSessionMeta().getMutableMap();
          }
          /**
           * 
           * Client metadata attached to write session, the same for all messages in batch.
           * 
           *
           * map<string, string> write_session_meta = 3;
           */
          public Builder putWriteSessionMeta(
              java.lang.String key,
              java.lang.String value) {
            if (key == null) { throw new NullPointerException("map key"); }
            if (value == null) { throw new NullPointerException("map value"); }
            internalGetMutableWriteSessionMeta().getMutableMap()
                .put(key, value);
            bitField0_ |= 0x00000004;
            return this;
          }
          /**
           * 
           * Client metadata attached to write session, the same for all messages in batch.
           * 
           *
           * map<string, string> write_session_meta = 3;
           */
          public Builder putAllWriteSessionMeta(
              java.util.Map values) {
            internalGetMutableWriteSessionMeta().getMutableMap()
                .putAll(values);
            bitField0_ |= 0x00000004;
            return this;
          }

          private int codec_ ;
          /**
           * 
           * Codec that is used for data compression.
           * See enum Codec above for values.
           * 
           *
           * int32 codec = 4;
           * @return The codec.
           */
          @java.lang.Override
          public int getCodec() {
            return codec_;
          }
          /**
           * 
           * Codec that is used for data compression.
           * See enum Codec above for values.
           * 
           *
           * int32 codec = 4;
           * @param value The codec to set.
           * @return This builder for chaining.
           */
          public Builder setCodec(int value) {

            codec_ = value;
            bitField0_ |= 0x00000008;
            onChanged();
            return this;
          }
          /**
           * 
           * Codec that is used for data compression.
           * See enum Codec above for values.
           * 
           *
           * int32 codec = 4;
           * @return This builder for chaining.
           */
          public Builder clearCodec() {
            bitField0_ = (bitField0_ & ~0x00000008);
            codec_ = 0;
            onChanged();
            return this;
          }

          private com.google.protobuf.Timestamp writtenAt_;
          private com.google.protobuf.SingleFieldBuilderV3<
              com.google.protobuf.Timestamp, com.google.protobuf.Timestamp.Builder, com.google.protobuf.TimestampOrBuilder> writtenAtBuilder_;
          /**
           * 
           * Persist timestamp on server for batch.
           * 
           *
           * .google.protobuf.Timestamp written_at = 5;
           * @return Whether the writtenAt field is set.
           */
          public boolean hasWrittenAt() {
            return ((bitField0_ & 0x00000010) != 0);
          }
          /**
           * 
           * Persist timestamp on server for batch.
           * 
           *
           * .google.protobuf.Timestamp written_at = 5;
           * @return The writtenAt.
           */
          public com.google.protobuf.Timestamp getWrittenAt() {
            if (writtenAtBuilder_ == null) {
              return writtenAt_ == null ? com.google.protobuf.Timestamp.getDefaultInstance() : writtenAt_;
            } else {
              return writtenAtBuilder_.getMessage();
            }
          }
          /**
           * 
           * Persist timestamp on server for batch.
           * 
           *
           * .google.protobuf.Timestamp written_at = 5;
           */
          public Builder setWrittenAt(com.google.protobuf.Timestamp value) {
            if (writtenAtBuilder_ == null) {
              if (value == null) {
                throw new NullPointerException();
              }
              writtenAt_ = value;
            } else {
              writtenAtBuilder_.setMessage(value);
            }
            bitField0_ |= 0x00000010;
            onChanged();
            return this;
          }
          /**
           * 
           * Persist timestamp on server for batch.
           * 
           *
           * .google.protobuf.Timestamp written_at = 5;
           */
          public Builder setWrittenAt(
              com.google.protobuf.Timestamp.Builder builderForValue) {
            if (writtenAtBuilder_ == null) {
              writtenAt_ = builderForValue.build();
            } else {
              writtenAtBuilder_.setMessage(builderForValue.build());
            }
            bitField0_ |= 0x00000010;
            onChanged();
            return this;
          }
          /**
           * 
           * Persist timestamp on server for batch.
           * 
           *
           * .google.protobuf.Timestamp written_at = 5;
           */
          public Builder mergeWrittenAt(com.google.protobuf.Timestamp value) {
            if (writtenAtBuilder_ == null) {
              if (((bitField0_ & 0x00000010) != 0) &&
                writtenAt_ != null &&
                writtenAt_ != com.google.protobuf.Timestamp.getDefaultInstance()) {
                getWrittenAtBuilder().mergeFrom(value);
              } else {
                writtenAt_ = value;
              }
            } else {
              writtenAtBuilder_.mergeFrom(value);
            }
            if (writtenAt_ != null) {
              bitField0_ |= 0x00000010;
              onChanged();
            }
            return this;
          }
          /**
           * 
           * Persist timestamp on server for batch.
           * 
           *
           * .google.protobuf.Timestamp written_at = 5;
           */
          public Builder clearWrittenAt() {
            bitField0_ = (bitField0_ & ~0x00000010);
            writtenAt_ = null;
            if (writtenAtBuilder_ != null) {
              writtenAtBuilder_.dispose();
              writtenAtBuilder_ = null;
            }
            onChanged();
            return this;
          }
          /**
           * 
           * Persist timestamp on server for batch.
           * 
           *
           * .google.protobuf.Timestamp written_at = 5;
           */
          public com.google.protobuf.Timestamp.Builder getWrittenAtBuilder() {
            bitField0_ |= 0x00000010;
            onChanged();
            return getWrittenAtFieldBuilder().getBuilder();
          }
          /**
           * 
           * Persist timestamp on server for batch.
           * 
           *
           * .google.protobuf.Timestamp written_at = 5;
           */
          public com.google.protobuf.TimestampOrBuilder getWrittenAtOrBuilder() {
            if (writtenAtBuilder_ != null) {
              return writtenAtBuilder_.getMessageOrBuilder();
            } else {
              return writtenAt_ == null ?
                  com.google.protobuf.Timestamp.getDefaultInstance() : writtenAt_;
            }
          }
          /**
           * 
           * Persist timestamp on server for batch.
           * 
           *
           * .google.protobuf.Timestamp written_at = 5;
           */
          private com.google.protobuf.SingleFieldBuilderV3<
              com.google.protobuf.Timestamp, com.google.protobuf.Timestamp.Builder, com.google.protobuf.TimestampOrBuilder> 
              getWrittenAtFieldBuilder() {
            if (writtenAtBuilder_ == null) {
              writtenAtBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
                  com.google.protobuf.Timestamp, com.google.protobuf.Timestamp.Builder, com.google.protobuf.TimestampOrBuilder>(
                      getWrittenAt(),
                      getParentForChildren(),
                      isClean());
              writtenAt_ = null;
            }
            return writtenAtBuilder_;
          }
          @java.lang.Override
          public final Builder setUnknownFields(
              final com.google.protobuf.UnknownFieldSet unknownFields) {
            return super.setUnknownFields(unknownFields);
          }

          @java.lang.Override
          public final Builder mergeUnknownFields(
              final com.google.protobuf.UnknownFieldSet unknownFields) {
            return super.mergeUnknownFields(unknownFields);
          }


          // @@protoc_insertion_point(builder_scope:Ydb.Topic.StreamReadMessage.ReadResponse.Batch)
        }

        // @@protoc_insertion_point(class_scope:Ydb.Topic.StreamReadMessage.ReadResponse.Batch)
        private static final tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.Batch DEFAULT_INSTANCE;
        static {
          DEFAULT_INSTANCE = new tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.Batch();
        }

        public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.Batch getDefaultInstance() {
          return DEFAULT_INSTANCE;
        }

        private static final com.google.protobuf.Parser
            PARSER = new com.google.protobuf.AbstractParser() {
          @java.lang.Override
          public Batch parsePartialFrom(
              com.google.protobuf.CodedInputStream input,
              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
              throws com.google.protobuf.InvalidProtocolBufferException {
            Builder builder = newBuilder();
            try {
              builder.mergeFrom(input, extensionRegistry);
            } catch (com.google.protobuf.InvalidProtocolBufferException e) {
              throw e.setUnfinishedMessage(builder.buildPartial());
            } catch (com.google.protobuf.UninitializedMessageException e) {
              throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
            } catch (java.io.IOException e) {
              throw new com.google.protobuf.InvalidProtocolBufferException(e)
                  .setUnfinishedMessage(builder.buildPartial());
            }
            return builder.buildPartial();
          }
        };

        public static com.google.protobuf.Parser parser() {
          return PARSER;
        }

        @java.lang.Override
        public com.google.protobuf.Parser getParserForType() {
          return PARSER;
        }

        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.Batch getDefaultInstanceForType() {
          return DEFAULT_INSTANCE;
        }

      }

      public interface PartitionDataOrBuilder extends
          // @@protoc_insertion_point(interface_extends:Ydb.Topic.StreamReadMessage.ReadResponse.PartitionData)
          com.google.protobuf.MessageOrBuilder {

        /**
         * int64 partition_session_id = 1;
         * @return The partitionSessionId.
         */
        long getPartitionSessionId();

        /**
         * 
         * Client messages, divided by write sessions.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.Batch batches = 2;
         */
        java.util.List 
            getBatchesList();
        /**
         * 
         * Client messages, divided by write sessions.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.Batch batches = 2;
         */
        tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.Batch getBatches(int index);
        /**
         * 
         * Client messages, divided by write sessions.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.Batch batches = 2;
         */
        int getBatchesCount();
        /**
         * 
         * Client messages, divided by write sessions.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.Batch batches = 2;
         */
        java.util.List 
            getBatchesOrBuilderList();
        /**
         * 
         * Client messages, divided by write sessions.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.Batch batches = 2;
         */
        tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.BatchOrBuilder getBatchesOrBuilder(
            int index);
      }
      /**
       * 
       * Representation of sequence of messages from one partition.
       * 
       *
       * Protobuf type {@code Ydb.Topic.StreamReadMessage.ReadResponse.PartitionData}
       */
      public static final class PartitionData extends
          com.google.protobuf.GeneratedMessageV3 implements
          // @@protoc_insertion_point(message_implements:Ydb.Topic.StreamReadMessage.ReadResponse.PartitionData)
          PartitionDataOrBuilder {
      private static final long serialVersionUID = 0L;
        // Use PartitionData.newBuilder() to construct.
        private PartitionData(com.google.protobuf.GeneratedMessageV3.Builder builder) {
          super(builder);
        }
        private PartitionData() {
          batches_ = java.util.Collections.emptyList();
        }

        @java.lang.Override
        @SuppressWarnings({"unused"})
        protected java.lang.Object newInstance(
            UnusedPrivateParameter unused) {
          return new PartitionData();
        }

        public static final com.google.protobuf.Descriptors.Descriptor
            getDescriptor() {
          return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamReadMessage_ReadResponse_PartitionData_descriptor;
        }

        @java.lang.Override
        protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
            internalGetFieldAccessorTable() {
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        public static final int PARTITION_SESSION_ID_FIELD_NUMBER = 1;
        private long partitionSessionId_ = 0L;
        /**
         * int64 partition_session_id = 1;
         * @return The partitionSessionId.
         */
        @java.lang.Override
        public long getPartitionSessionId() {
          return partitionSessionId_;
        }

        public static final int BATCHES_FIELD_NUMBER = 2;
        @SuppressWarnings("serial")
        private java.util.List batches_;
        /**
         * 
         * Client messages, divided by write sessions.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.Batch batches = 2;
         */
        @java.lang.Override
        public java.util.List getBatchesList() {
          return batches_;
        }
        /**
         * 
         * Client messages, divided by write sessions.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.Batch batches = 2;
         */
        @java.lang.Override
        public java.util.List 
            getBatchesOrBuilderList() {
          return batches_;
        }
        /**
         * 
         * Client messages, divided by write sessions.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.Batch batches = 2;
         */
        @java.lang.Override
        public int getBatchesCount() {
          return batches_.size();
        }
        /**
         * 
         * Client messages, divided by write sessions.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.Batch batches = 2;
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.Batch getBatches(int index) {
          return batches_.get(index);
        }
        /**
         * 
         * Client messages, divided by write sessions.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.Batch batches = 2;
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.BatchOrBuilder getBatchesOrBuilder(
            int index) {
          return batches_.get(index);
        }

        private byte memoizedIsInitialized = -1;
        @java.lang.Override
        public final boolean isInitialized() {
          byte isInitialized = memoizedIsInitialized;
          if (isInitialized == 1) return true;
          if (isInitialized == 0) return false;

          memoizedIsInitialized = 1;
          return true;
        }

        @java.lang.Override
        public void writeTo(com.google.protobuf.CodedOutputStream output)
                            throws java.io.IOException {
          if (partitionSessionId_ != 0L) {
            output.writeInt64(1, partitionSessionId_);
          }
          for (int i = 0; i < batches_.size(); i++) {
            output.writeMessage(2, batches_.get(i));
          }
          getUnknownFields().writeTo(output);
        }

        @java.lang.Override
        public int getSerializedSize() {
          int size = memoizedSize;
          if (size != -1) return size;

          size = 0;
          if (partitionSessionId_ != 0L) {
            size += com.google.protobuf.CodedOutputStream
              .computeInt64Size(1, partitionSessionId_);
          }
          for (int i = 0; i < batches_.size(); i++) {
            size += com.google.protobuf.CodedOutputStream
              .computeMessageSize(2, batches_.get(i));
          }
          size += getUnknownFields().getSerializedSize();
          memoizedSize = size;
          return size;
        }

        @java.lang.Override
        public boolean equals(final java.lang.Object obj) {
          if (obj == this) {
           return true;
          }
          if (!(obj instanceof tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData)) {
            return super.equals(obj);
          }
          tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData other = (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData) obj;

          if (getPartitionSessionId()
              != other.getPartitionSessionId()) return false;
          if (!getBatchesList()
              .equals(other.getBatchesList())) return false;
          if (!getUnknownFields().equals(other.getUnknownFields())) return false;
          return true;
        }

        @java.lang.Override
        public int hashCode() {
          if (memoizedHashCode != 0) {
            return memoizedHashCode;
          }
          int hash = 41;
          hash = (19 * hash) + getDescriptor().hashCode();
          hash = (37 * hash) + PARTITION_SESSION_ID_FIELD_NUMBER;
          hash = (53 * hash) + com.google.protobuf.Internal.hashLong(
              getPartitionSessionId());
          if (getBatchesCount() > 0) {
            hash = (37 * hash) + BATCHES_FIELD_NUMBER;
            hash = (53 * hash) + getBatchesList().hashCode();
          }
          hash = (29 * hash) + getUnknownFields().hashCode();
          memoizedHashCode = hash;
          return hash;
        }

        public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData parseFrom(
            java.nio.ByteBuffer data)
            throws com.google.protobuf.InvalidProtocolBufferException {
          return PARSER.parseFrom(data);
        }
        public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData parseFrom(
            java.nio.ByteBuffer data,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws com.google.protobuf.InvalidProtocolBufferException {
          return PARSER.parseFrom(data, extensionRegistry);
        }
        public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData parseFrom(
            com.google.protobuf.ByteString data)
            throws com.google.protobuf.InvalidProtocolBufferException {
          return PARSER.parseFrom(data);
        }
        public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData parseFrom(
            com.google.protobuf.ByteString data,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws com.google.protobuf.InvalidProtocolBufferException {
          return PARSER.parseFrom(data, extensionRegistry);
        }
        public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData parseFrom(byte[] data)
            throws com.google.protobuf.InvalidProtocolBufferException {
          return PARSER.parseFrom(data);
        }
        public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData parseFrom(
            byte[] data,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws com.google.protobuf.InvalidProtocolBufferException {
          return PARSER.parseFrom(data, extensionRegistry);
        }
        public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData parseFrom(java.io.InputStream input)
            throws java.io.IOException {
          return com.google.protobuf.GeneratedMessageV3
              .parseWithIOException(PARSER, input);
        }
        public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData parseFrom(
            java.io.InputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws java.io.IOException {
          return com.google.protobuf.GeneratedMessageV3
              .parseWithIOException(PARSER, input, extensionRegistry);
        }

        public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData parseDelimitedFrom(java.io.InputStream input)
            throws java.io.IOException {
          return com.google.protobuf.GeneratedMessageV3
              .parseDelimitedWithIOException(PARSER, input);
        }

        public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData parseDelimitedFrom(
            java.io.InputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws java.io.IOException {
          return com.google.protobuf.GeneratedMessageV3
              .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
        }
        public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData parseFrom(
            com.google.protobuf.CodedInputStream input)
            throws java.io.IOException {
          return com.google.protobuf.GeneratedMessageV3
              .parseWithIOException(PARSER, input);
        }
        public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData parseFrom(
            com.google.protobuf.CodedInputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws java.io.IOException {
          return com.google.protobuf.GeneratedMessageV3
              .parseWithIOException(PARSER, input, extensionRegistry);
        }

        @java.lang.Override
        public Builder newBuilderForType() { return newBuilder(); }
        public static Builder newBuilder() {
          return DEFAULT_INSTANCE.toBuilder();
        }
        public static Builder newBuilder(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData prototype) {
          return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
        }
        @java.lang.Override
        public Builder toBuilder() {
          return this == DEFAULT_INSTANCE
              ? new Builder() : new Builder().mergeFrom(this);
        }

        @java.lang.Override
        protected Builder newBuilderForType(
            com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
          Builder builder = new Builder(parent);
          return builder;
        }
        /**
         * 
         * Representation of sequence of messages from one partition.
         * 
         *
         * Protobuf type {@code Ydb.Topic.StreamReadMessage.ReadResponse.PartitionData}
         */
        public static final class Builder extends
            com.google.protobuf.GeneratedMessageV3.Builder implements
            // @@protoc_insertion_point(builder_implements:Ydb.Topic.StreamReadMessage.ReadResponse.PartitionData)
            tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionDataOrBuilder {
          public static final com.google.protobuf.Descriptors.Descriptor
              getDescriptor() {
            return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamReadMessage_ReadResponse_PartitionData_descriptor;
          }

          @java.lang.Override
          protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
              internalGetFieldAccessorTable() {
            return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamReadMessage_ReadResponse_PartitionData_fieldAccessorTable
                .ensureFieldAccessorsInitialized(
                    tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData.class, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData.Builder.class);
          }

          // Construct using tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData.newBuilder()
          private Builder() {

          }

          private Builder(
              com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
            super(parent);

          }
          @java.lang.Override
          public Builder clear() {
            super.clear();
            bitField0_ = 0;
            partitionSessionId_ = 0L;
            if (batchesBuilder_ == null) {
              batches_ = java.util.Collections.emptyList();
            } else {
              batches_ = null;
              batchesBuilder_.clear();
            }
            bitField0_ = (bitField0_ & ~0x00000002);
            return this;
          }

          @java.lang.Override
          public com.google.protobuf.Descriptors.Descriptor
              getDescriptorForType() {
            return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamReadMessage_ReadResponse_PartitionData_descriptor;
          }

          @java.lang.Override
          public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData getDefaultInstanceForType() {
            return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData.getDefaultInstance();
          }

          @java.lang.Override
          public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData build() {
            tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData result = buildPartial();
            if (!result.isInitialized()) {
              throw newUninitializedMessageException(result);
            }
            return result;
          }

          @java.lang.Override
          public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData buildPartial() {
            tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData result = new tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData(this);
            buildPartialRepeatedFields(result);
            if (bitField0_ != 0) { buildPartial0(result); }
            onBuilt();
            return result;
          }

          private void buildPartialRepeatedFields(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData result) {
            if (batchesBuilder_ == null) {
              if (((bitField0_ & 0x00000002) != 0)) {
                batches_ = java.util.Collections.unmodifiableList(batches_);
                bitField0_ = (bitField0_ & ~0x00000002);
              }
              result.batches_ = batches_;
            } else {
              result.batches_ = batchesBuilder_.build();
            }
          }

          private void buildPartial0(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData result) {
            int from_bitField0_ = bitField0_;
            if (((from_bitField0_ & 0x00000001) != 0)) {
              result.partitionSessionId_ = partitionSessionId_;
            }
          }

          @java.lang.Override
          public Builder clone() {
            return super.clone();
          }
          @java.lang.Override
          public Builder setField(
              com.google.protobuf.Descriptors.FieldDescriptor field,
              java.lang.Object value) {
            return super.setField(field, value);
          }
          @java.lang.Override
          public Builder clearField(
              com.google.protobuf.Descriptors.FieldDescriptor field) {
            return super.clearField(field);
          }
          @java.lang.Override
          public Builder clearOneof(
              com.google.protobuf.Descriptors.OneofDescriptor oneof) {
            return super.clearOneof(oneof);
          }
          @java.lang.Override
          public Builder setRepeatedField(
              com.google.protobuf.Descriptors.FieldDescriptor field,
              int index, java.lang.Object value) {
            return super.setRepeatedField(field, index, value);
          }
          @java.lang.Override
          public Builder addRepeatedField(
              com.google.protobuf.Descriptors.FieldDescriptor field,
              java.lang.Object value) {
            return super.addRepeatedField(field, value);
          }
          @java.lang.Override
          public Builder mergeFrom(com.google.protobuf.Message other) {
            if (other instanceof tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData) {
              return mergeFrom((tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData)other);
            } else {
              super.mergeFrom(other);
              return this;
            }
          }

          public Builder mergeFrom(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData other) {
            if (other == tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData.getDefaultInstance()) return this;
            if (other.getPartitionSessionId() != 0L) {
              setPartitionSessionId(other.getPartitionSessionId());
            }
            if (batchesBuilder_ == null) {
              if (!other.batches_.isEmpty()) {
                if (batches_.isEmpty()) {
                  batches_ = other.batches_;
                  bitField0_ = (bitField0_ & ~0x00000002);
                } else {
                  ensureBatchesIsMutable();
                  batches_.addAll(other.batches_);
                }
                onChanged();
              }
            } else {
              if (!other.batches_.isEmpty()) {
                if (batchesBuilder_.isEmpty()) {
                  batchesBuilder_.dispose();
                  batchesBuilder_ = null;
                  batches_ = other.batches_;
                  bitField0_ = (bitField0_ & ~0x00000002);
                  batchesBuilder_ = 
                    com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders ?
                       getBatchesFieldBuilder() : null;
                } else {
                  batchesBuilder_.addAllMessages(other.batches_);
                }
              }
            }
            this.mergeUnknownFields(other.getUnknownFields());
            onChanged();
            return this;
          }

          @java.lang.Override
          public final boolean isInitialized() {
            return true;
          }

          @java.lang.Override
          public Builder mergeFrom(
              com.google.protobuf.CodedInputStream input,
              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
              throws java.io.IOException {
            if (extensionRegistry == null) {
              throw new java.lang.NullPointerException();
            }
            try {
              boolean done = false;
              while (!done) {
                int tag = input.readTag();
                switch (tag) {
                  case 0:
                    done = true;
                    break;
                  case 8: {
                    partitionSessionId_ = input.readInt64();
                    bitField0_ |= 0x00000001;
                    break;
                  } // case 8
                  case 18: {
                    tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.Batch m =
                        input.readMessage(
                            tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.Batch.parser(),
                            extensionRegistry);
                    if (batchesBuilder_ == null) {
                      ensureBatchesIsMutable();
                      batches_.add(m);
                    } else {
                      batchesBuilder_.addMessage(m);
                    }
                    break;
                  } // case 18
                  default: {
                    if (!super.parseUnknownField(input, extensionRegistry, tag)) {
                      done = true; // was an endgroup tag
                    }
                    break;
                  } // default:
                } // switch (tag)
              } // while (!done)
            } catch (com.google.protobuf.InvalidProtocolBufferException e) {
              throw e.unwrapIOException();
            } finally {
              onChanged();
            } // finally
            return this;
          }
          private int bitField0_;

          private long partitionSessionId_ ;
          /**
           * int64 partition_session_id = 1;
           * @return The partitionSessionId.
           */
          @java.lang.Override
          public long getPartitionSessionId() {
            return partitionSessionId_;
          }
          /**
           * int64 partition_session_id = 1;
           * @param value The partitionSessionId to set.
           * @return This builder for chaining.
           */
          public Builder setPartitionSessionId(long value) {

            partitionSessionId_ = value;
            bitField0_ |= 0x00000001;
            onChanged();
            return this;
          }
          /**
           * int64 partition_session_id = 1;
           * @return This builder for chaining.
           */
          public Builder clearPartitionSessionId() {
            bitField0_ = (bitField0_ & ~0x00000001);
            partitionSessionId_ = 0L;
            onChanged();
            return this;
          }

          private java.util.List batches_ =
            java.util.Collections.emptyList();
          private void ensureBatchesIsMutable() {
            if (!((bitField0_ & 0x00000002) != 0)) {
              batches_ = new java.util.ArrayList(batches_);
              bitField0_ |= 0x00000002;
             }
          }

          private com.google.protobuf.RepeatedFieldBuilderV3<
              tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.Batch, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.Batch.Builder, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.BatchOrBuilder> batchesBuilder_;

          /**
           * 
           * Client messages, divided by write sessions.
           * 
           *
           * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.Batch batches = 2;
           */
          public java.util.List getBatchesList() {
            if (batchesBuilder_ == null) {
              return java.util.Collections.unmodifiableList(batches_);
            } else {
              return batchesBuilder_.getMessageList();
            }
          }
          /**
           * 
           * Client messages, divided by write sessions.
           * 
           *
           * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.Batch batches = 2;
           */
          public int getBatchesCount() {
            if (batchesBuilder_ == null) {
              return batches_.size();
            } else {
              return batchesBuilder_.getCount();
            }
          }
          /**
           * 
           * Client messages, divided by write sessions.
           * 
           *
           * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.Batch batches = 2;
           */
          public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.Batch getBatches(int index) {
            if (batchesBuilder_ == null) {
              return batches_.get(index);
            } else {
              return batchesBuilder_.getMessage(index);
            }
          }
          /**
           * 
           * Client messages, divided by write sessions.
           * 
           *
           * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.Batch batches = 2;
           */
          public Builder setBatches(
              int index, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.Batch value) {
            if (batchesBuilder_ == null) {
              if (value == null) {
                throw new NullPointerException();
              }
              ensureBatchesIsMutable();
              batches_.set(index, value);
              onChanged();
            } else {
              batchesBuilder_.setMessage(index, value);
            }
            return this;
          }
          /**
           * 
           * Client messages, divided by write sessions.
           * 
           *
           * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.Batch batches = 2;
           */
          public Builder setBatches(
              int index, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.Batch.Builder builderForValue) {
            if (batchesBuilder_ == null) {
              ensureBatchesIsMutable();
              batches_.set(index, builderForValue.build());
              onChanged();
            } else {
              batchesBuilder_.setMessage(index, builderForValue.build());
            }
            return this;
          }
          /**
           * 
           * Client messages, divided by write sessions.
           * 
           *
           * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.Batch batches = 2;
           */
          public Builder addBatches(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.Batch value) {
            if (batchesBuilder_ == null) {
              if (value == null) {
                throw new NullPointerException();
              }
              ensureBatchesIsMutable();
              batches_.add(value);
              onChanged();
            } else {
              batchesBuilder_.addMessage(value);
            }
            return this;
          }
          /**
           * 
           * Client messages, divided by write sessions.
           * 
           *
           * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.Batch batches = 2;
           */
          public Builder addBatches(
              int index, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.Batch value) {
            if (batchesBuilder_ == null) {
              if (value == null) {
                throw new NullPointerException();
              }
              ensureBatchesIsMutable();
              batches_.add(index, value);
              onChanged();
            } else {
              batchesBuilder_.addMessage(index, value);
            }
            return this;
          }
          /**
           * 
           * Client messages, divided by write sessions.
           * 
           *
           * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.Batch batches = 2;
           */
          public Builder addBatches(
              tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.Batch.Builder builderForValue) {
            if (batchesBuilder_ == null) {
              ensureBatchesIsMutable();
              batches_.add(builderForValue.build());
              onChanged();
            } else {
              batchesBuilder_.addMessage(builderForValue.build());
            }
            return this;
          }
          /**
           * 
           * Client messages, divided by write sessions.
           * 
           *
           * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.Batch batches = 2;
           */
          public Builder addBatches(
              int index, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.Batch.Builder builderForValue) {
            if (batchesBuilder_ == null) {
              ensureBatchesIsMutable();
              batches_.add(index, builderForValue.build());
              onChanged();
            } else {
              batchesBuilder_.addMessage(index, builderForValue.build());
            }
            return this;
          }
          /**
           * 
           * Client messages, divided by write sessions.
           * 
           *
           * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.Batch batches = 2;
           */
          public Builder addAllBatches(
              java.lang.Iterable values) {
            if (batchesBuilder_ == null) {
              ensureBatchesIsMutable();
              com.google.protobuf.AbstractMessageLite.Builder.addAll(
                  values, batches_);
              onChanged();
            } else {
              batchesBuilder_.addAllMessages(values);
            }
            return this;
          }
          /**
           * 
           * Client messages, divided by write sessions.
           * 
           *
           * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.Batch batches = 2;
           */
          public Builder clearBatches() {
            if (batchesBuilder_ == null) {
              batches_ = java.util.Collections.emptyList();
              bitField0_ = (bitField0_ & ~0x00000002);
              onChanged();
            } else {
              batchesBuilder_.clear();
            }
            return this;
          }
          /**
           * 
           * Client messages, divided by write sessions.
           * 
           *
           * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.Batch batches = 2;
           */
          public Builder removeBatches(int index) {
            if (batchesBuilder_ == null) {
              ensureBatchesIsMutable();
              batches_.remove(index);
              onChanged();
            } else {
              batchesBuilder_.remove(index);
            }
            return this;
          }
          /**
           * 
           * Client messages, divided by write sessions.
           * 
           *
           * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.Batch batches = 2;
           */
          public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.Batch.Builder getBatchesBuilder(
              int index) {
            return getBatchesFieldBuilder().getBuilder(index);
          }
          /**
           * 
           * Client messages, divided by write sessions.
           * 
           *
           * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.Batch batches = 2;
           */
          public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.BatchOrBuilder getBatchesOrBuilder(
              int index) {
            if (batchesBuilder_ == null) {
              return batches_.get(index);  } else {
              return batchesBuilder_.getMessageOrBuilder(index);
            }
          }
          /**
           * 
           * Client messages, divided by write sessions.
           * 
           *
           * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.Batch batches = 2;
           */
          public java.util.List 
               getBatchesOrBuilderList() {
            if (batchesBuilder_ != null) {
              return batchesBuilder_.getMessageOrBuilderList();
            } else {
              return java.util.Collections.unmodifiableList(batches_);
            }
          }
          /**
           * 
           * Client messages, divided by write sessions.
           * 
           *
           * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.Batch batches = 2;
           */
          public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.Batch.Builder addBatchesBuilder() {
            return getBatchesFieldBuilder().addBuilder(
                tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.Batch.getDefaultInstance());
          }
          /**
           * 
           * Client messages, divided by write sessions.
           * 
           *
           * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.Batch batches = 2;
           */
          public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.Batch.Builder addBatchesBuilder(
              int index) {
            return getBatchesFieldBuilder().addBuilder(
                index, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.Batch.getDefaultInstance());
          }
          /**
           * 
           * Client messages, divided by write sessions.
           * 
           *
           * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.Batch batches = 2;
           */
          public java.util.List 
               getBatchesBuilderList() {
            return getBatchesFieldBuilder().getBuilderList();
          }
          private com.google.protobuf.RepeatedFieldBuilderV3<
              tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.Batch, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.Batch.Builder, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.BatchOrBuilder> 
              getBatchesFieldBuilder() {
            if (batchesBuilder_ == null) {
              batchesBuilder_ = new com.google.protobuf.RepeatedFieldBuilderV3<
                  tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.Batch, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.Batch.Builder, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.BatchOrBuilder>(
                      batches_,
                      ((bitField0_ & 0x00000002) != 0),
                      getParentForChildren(),
                      isClean());
              batches_ = null;
            }
            return batchesBuilder_;
          }
          @java.lang.Override
          public final Builder setUnknownFields(
              final com.google.protobuf.UnknownFieldSet unknownFields) {
            return super.setUnknownFields(unknownFields);
          }

          @java.lang.Override
          public final Builder mergeUnknownFields(
              final com.google.protobuf.UnknownFieldSet unknownFields) {
            return super.mergeUnknownFields(unknownFields);
          }


          // @@protoc_insertion_point(builder_scope:Ydb.Topic.StreamReadMessage.ReadResponse.PartitionData)
        }

        // @@protoc_insertion_point(class_scope:Ydb.Topic.StreamReadMessage.ReadResponse.PartitionData)
        private static final tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData DEFAULT_INSTANCE;
        static {
          DEFAULT_INSTANCE = new tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData();
        }

        public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData getDefaultInstance() {
          return DEFAULT_INSTANCE;
        }

        private static final com.google.protobuf.Parser
            PARSER = new com.google.protobuf.AbstractParser() {
          @java.lang.Override
          public PartitionData parsePartialFrom(
              com.google.protobuf.CodedInputStream input,
              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
              throws com.google.protobuf.InvalidProtocolBufferException {
            Builder builder = newBuilder();
            try {
              builder.mergeFrom(input, extensionRegistry);
            } catch (com.google.protobuf.InvalidProtocolBufferException e) {
              throw e.setUnfinishedMessage(builder.buildPartial());
            } catch (com.google.protobuf.UninitializedMessageException e) {
              throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
            } catch (java.io.IOException e) {
              throw new com.google.protobuf.InvalidProtocolBufferException(e)
                  .setUnfinishedMessage(builder.buildPartial());
            }
            return builder.buildPartial();
          }
        };

        public static com.google.protobuf.Parser parser() {
          return PARSER;
        }

        @java.lang.Override
        public com.google.protobuf.Parser getParserForType() {
          return PARSER;
        }

        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData getDefaultInstanceForType() {
          return DEFAULT_INSTANCE;
        }

      }

      public static final int PARTITION_DATA_FIELD_NUMBER = 1;
      @SuppressWarnings("serial")
      private java.util.List partitionData_;
      /**
       * 
       * Client messages, divided by partitions.
       * 
       *
       * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.PartitionData partition_data = 1;
       */
      @java.lang.Override
      public java.util.List getPartitionDataList() {
        return partitionData_;
      }
      /**
       * 
       * Client messages, divided by partitions.
       * 
       *
       * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.PartitionData partition_data = 1;
       */
      @java.lang.Override
      public java.util.List 
          getPartitionDataOrBuilderList() {
        return partitionData_;
      }
      /**
       * 
       * Client messages, divided by partitions.
       * 
       *
       * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.PartitionData partition_data = 1;
       */
      @java.lang.Override
      public int getPartitionDataCount() {
        return partitionData_.size();
      }
      /**
       * 
       * Client messages, divided by partitions.
       * 
       *
       * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.PartitionData partition_data = 1;
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData getPartitionData(int index) {
        return partitionData_.get(index);
      }
      /**
       * 
       * Client messages, divided by partitions.
       * 
       *
       * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.PartitionData partition_data = 1;
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionDataOrBuilder getPartitionDataOrBuilder(
          int index) {
        return partitionData_.get(index);
      }

      public static final int BYTES_SIZE_FIELD_NUMBER = 2;
      private long bytesSize_ = 0L;
      /**
       * 
       * Total size in bytes of this response as calculated by server.
       * See ReadRequest comment above.
       * 
       *
       * int64 bytes_size = 2;
       * @return The bytesSize.
       */
      @java.lang.Override
      public long getBytesSize() {
        return bytesSize_;
      }

      private byte memoizedIsInitialized = -1;
      @java.lang.Override
      public final boolean isInitialized() {
        byte isInitialized = memoizedIsInitialized;
        if (isInitialized == 1) return true;
        if (isInitialized == 0) return false;

        memoizedIsInitialized = 1;
        return true;
      }

      @java.lang.Override
      public void writeTo(com.google.protobuf.CodedOutputStream output)
                          throws java.io.IOException {
        for (int i = 0; i < partitionData_.size(); i++) {
          output.writeMessage(1, partitionData_.get(i));
        }
        if (bytesSize_ != 0L) {
          output.writeInt64(2, bytesSize_);
        }
        getUnknownFields().writeTo(output);
      }

      @java.lang.Override
      public int getSerializedSize() {
        int size = memoizedSize;
        if (size != -1) return size;

        size = 0;
        for (int i = 0; i < partitionData_.size(); i++) {
          size += com.google.protobuf.CodedOutputStream
            .computeMessageSize(1, partitionData_.get(i));
        }
        if (bytesSize_ != 0L) {
          size += com.google.protobuf.CodedOutputStream
            .computeInt64Size(2, bytesSize_);
        }
        size += getUnknownFields().getSerializedSize();
        memoizedSize = size;
        return size;
      }

      @java.lang.Override
      public boolean equals(final java.lang.Object obj) {
        if (obj == this) {
         return true;
        }
        if (!(obj instanceof tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse)) {
          return super.equals(obj);
        }
        tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse other = (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse) obj;

        if (!getPartitionDataList()
            .equals(other.getPartitionDataList())) return false;
        if (getBytesSize()
            != other.getBytesSize()) return false;
        if (!getUnknownFields().equals(other.getUnknownFields())) return false;
        return true;
      }

      @java.lang.Override
      public int hashCode() {
        if (memoizedHashCode != 0) {
          return memoizedHashCode;
        }
        int hash = 41;
        hash = (19 * hash) + getDescriptor().hashCode();
        if (getPartitionDataCount() > 0) {
          hash = (37 * hash) + PARTITION_DATA_FIELD_NUMBER;
          hash = (53 * hash) + getPartitionDataList().hashCode();
        }
        hash = (37 * hash) + BYTES_SIZE_FIELD_NUMBER;
        hash = (53 * hash) + com.google.protobuf.Internal.hashLong(
            getBytesSize());
        hash = (29 * hash) + getUnknownFields().hashCode();
        memoizedHashCode = hash;
        return hash;
      }

      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse parseFrom(
          java.nio.ByteBuffer data)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse parseFrom(
          java.nio.ByteBuffer data,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data, extensionRegistry);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse parseFrom(
          com.google.protobuf.ByteString data)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse parseFrom(
          com.google.protobuf.ByteString data,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data, extensionRegistry);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse parseFrom(byte[] data)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse parseFrom(
          byte[] data,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data, extensionRegistry);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse parseFrom(java.io.InputStream input)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseWithIOException(PARSER, input);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse parseFrom(
          java.io.InputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseWithIOException(PARSER, input, extensionRegistry);
      }

      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse parseDelimitedFrom(java.io.InputStream input)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseDelimitedWithIOException(PARSER, input);
      }

      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse parseDelimitedFrom(
          java.io.InputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse parseFrom(
          com.google.protobuf.CodedInputStream input)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseWithIOException(PARSER, input);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse parseFrom(
          com.google.protobuf.CodedInputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseWithIOException(PARSER, input, extensionRegistry);
      }

      @java.lang.Override
      public Builder newBuilderForType() { return newBuilder(); }
      public static Builder newBuilder() {
        return DEFAULT_INSTANCE.toBuilder();
      }
      public static Builder newBuilder(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse prototype) {
        return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
      }
      @java.lang.Override
      public Builder toBuilder() {
        return this == DEFAULT_INSTANCE
            ? new Builder() : new Builder().mergeFrom(this);
      }

      @java.lang.Override
      protected Builder newBuilderForType(
          com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
        Builder builder = new Builder(parent);
        return builder;
      }
      /**
       * 
       * Data read.
       * 
       *
       * Protobuf type {@code Ydb.Topic.StreamReadMessage.ReadResponse}
       */
      public static final class Builder extends
          com.google.protobuf.GeneratedMessageV3.Builder implements
          // @@protoc_insertion_point(builder_implements:Ydb.Topic.StreamReadMessage.ReadResponse)
          tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponseOrBuilder {
        public static final com.google.protobuf.Descriptors.Descriptor
            getDescriptor() {
          return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamReadMessage_ReadResponse_descriptor;
        }

        @java.lang.Override
        protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
            internalGetFieldAccessorTable() {
          return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamReadMessage_ReadResponse_fieldAccessorTable
              .ensureFieldAccessorsInitialized(
                  tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.class, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.Builder.class);
        }

        // Construct using tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.newBuilder()
        private Builder() {

        }

        private Builder(
            com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
          super(parent);

        }
        @java.lang.Override
        public Builder clear() {
          super.clear();
          bitField0_ = 0;
          if (partitionDataBuilder_ == null) {
            partitionData_ = java.util.Collections.emptyList();
          } else {
            partitionData_ = null;
            partitionDataBuilder_.clear();
          }
          bitField0_ = (bitField0_ & ~0x00000001);
          bytesSize_ = 0L;
          return this;
        }

        @java.lang.Override
        public com.google.protobuf.Descriptors.Descriptor
            getDescriptorForType() {
          return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamReadMessage_ReadResponse_descriptor;
        }

        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse getDefaultInstanceForType() {
          return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.getDefaultInstance();
        }

        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse build() {
          tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse result = buildPartial();
          if (!result.isInitialized()) {
            throw newUninitializedMessageException(result);
          }
          return result;
        }

        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse buildPartial() {
          tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse result = new tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse(this);
          buildPartialRepeatedFields(result);
          if (bitField0_ != 0) { buildPartial0(result); }
          onBuilt();
          return result;
        }

        private void buildPartialRepeatedFields(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse result) {
          if (partitionDataBuilder_ == null) {
            if (((bitField0_ & 0x00000001) != 0)) {
              partitionData_ = java.util.Collections.unmodifiableList(partitionData_);
              bitField0_ = (bitField0_ & ~0x00000001);
            }
            result.partitionData_ = partitionData_;
          } else {
            result.partitionData_ = partitionDataBuilder_.build();
          }
        }

        private void buildPartial0(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse result) {
          int from_bitField0_ = bitField0_;
          if (((from_bitField0_ & 0x00000002) != 0)) {
            result.bytesSize_ = bytesSize_;
          }
        }

        @java.lang.Override
        public Builder clone() {
          return super.clone();
        }
        @java.lang.Override
        public Builder setField(
            com.google.protobuf.Descriptors.FieldDescriptor field,
            java.lang.Object value) {
          return super.setField(field, value);
        }
        @java.lang.Override
        public Builder clearField(
            com.google.protobuf.Descriptors.FieldDescriptor field) {
          return super.clearField(field);
        }
        @java.lang.Override
        public Builder clearOneof(
            com.google.protobuf.Descriptors.OneofDescriptor oneof) {
          return super.clearOneof(oneof);
        }
        @java.lang.Override
        public Builder setRepeatedField(
            com.google.protobuf.Descriptors.FieldDescriptor field,
            int index, java.lang.Object value) {
          return super.setRepeatedField(field, index, value);
        }
        @java.lang.Override
        public Builder addRepeatedField(
            com.google.protobuf.Descriptors.FieldDescriptor field,
            java.lang.Object value) {
          return super.addRepeatedField(field, value);
        }
        @java.lang.Override
        public Builder mergeFrom(com.google.protobuf.Message other) {
          if (other instanceof tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse) {
            return mergeFrom((tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse)other);
          } else {
            super.mergeFrom(other);
            return this;
          }
        }

        public Builder mergeFrom(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse other) {
          if (other == tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.getDefaultInstance()) return this;
          if (partitionDataBuilder_ == null) {
            if (!other.partitionData_.isEmpty()) {
              if (partitionData_.isEmpty()) {
                partitionData_ = other.partitionData_;
                bitField0_ = (bitField0_ & ~0x00000001);
              } else {
                ensurePartitionDataIsMutable();
                partitionData_.addAll(other.partitionData_);
              }
              onChanged();
            }
          } else {
            if (!other.partitionData_.isEmpty()) {
              if (partitionDataBuilder_.isEmpty()) {
                partitionDataBuilder_.dispose();
                partitionDataBuilder_ = null;
                partitionData_ = other.partitionData_;
                bitField0_ = (bitField0_ & ~0x00000001);
                partitionDataBuilder_ = 
                  com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders ?
                     getPartitionDataFieldBuilder() : null;
              } else {
                partitionDataBuilder_.addAllMessages(other.partitionData_);
              }
            }
          }
          if (other.getBytesSize() != 0L) {
            setBytesSize(other.getBytesSize());
          }
          this.mergeUnknownFields(other.getUnknownFields());
          onChanged();
          return this;
        }

        @java.lang.Override
        public final boolean isInitialized() {
          return true;
        }

        @java.lang.Override
        public Builder mergeFrom(
            com.google.protobuf.CodedInputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws java.io.IOException {
          if (extensionRegistry == null) {
            throw new java.lang.NullPointerException();
          }
          try {
            boolean done = false;
            while (!done) {
              int tag = input.readTag();
              switch (tag) {
                case 0:
                  done = true;
                  break;
                case 10: {
                  tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData m =
                      input.readMessage(
                          tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData.parser(),
                          extensionRegistry);
                  if (partitionDataBuilder_ == null) {
                    ensurePartitionDataIsMutable();
                    partitionData_.add(m);
                  } else {
                    partitionDataBuilder_.addMessage(m);
                  }
                  break;
                } // case 10
                case 16: {
                  bytesSize_ = input.readInt64();
                  bitField0_ |= 0x00000002;
                  break;
                } // case 16
                default: {
                  if (!super.parseUnknownField(input, extensionRegistry, tag)) {
                    done = true; // was an endgroup tag
                  }
                  break;
                } // default:
              } // switch (tag)
            } // while (!done)
          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
            throw e.unwrapIOException();
          } finally {
            onChanged();
          } // finally
          return this;
        }
        private int bitField0_;

        private java.util.List partitionData_ =
          java.util.Collections.emptyList();
        private void ensurePartitionDataIsMutable() {
          if (!((bitField0_ & 0x00000001) != 0)) {
            partitionData_ = new java.util.ArrayList(partitionData_);
            bitField0_ |= 0x00000001;
           }
        }

        private com.google.protobuf.RepeatedFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData.Builder, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionDataOrBuilder> partitionDataBuilder_;

        /**
         * 
         * Client messages, divided by partitions.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.PartitionData partition_data = 1;
         */
        public java.util.List getPartitionDataList() {
          if (partitionDataBuilder_ == null) {
            return java.util.Collections.unmodifiableList(partitionData_);
          } else {
            return partitionDataBuilder_.getMessageList();
          }
        }
        /**
         * 
         * Client messages, divided by partitions.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.PartitionData partition_data = 1;
         */
        public int getPartitionDataCount() {
          if (partitionDataBuilder_ == null) {
            return partitionData_.size();
          } else {
            return partitionDataBuilder_.getCount();
          }
        }
        /**
         * 
         * Client messages, divided by partitions.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.PartitionData partition_data = 1;
         */
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData getPartitionData(int index) {
          if (partitionDataBuilder_ == null) {
            return partitionData_.get(index);
          } else {
            return partitionDataBuilder_.getMessage(index);
          }
        }
        /**
         * 
         * Client messages, divided by partitions.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.PartitionData partition_data = 1;
         */
        public Builder setPartitionData(
            int index, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData value) {
          if (partitionDataBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            ensurePartitionDataIsMutable();
            partitionData_.set(index, value);
            onChanged();
          } else {
            partitionDataBuilder_.setMessage(index, value);
          }
          return this;
        }
        /**
         * 
         * Client messages, divided by partitions.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.PartitionData partition_data = 1;
         */
        public Builder setPartitionData(
            int index, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData.Builder builderForValue) {
          if (partitionDataBuilder_ == null) {
            ensurePartitionDataIsMutable();
            partitionData_.set(index, builderForValue.build());
            onChanged();
          } else {
            partitionDataBuilder_.setMessage(index, builderForValue.build());
          }
          return this;
        }
        /**
         * 
         * Client messages, divided by partitions.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.PartitionData partition_data = 1;
         */
        public Builder addPartitionData(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData value) {
          if (partitionDataBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            ensurePartitionDataIsMutable();
            partitionData_.add(value);
            onChanged();
          } else {
            partitionDataBuilder_.addMessage(value);
          }
          return this;
        }
        /**
         * 
         * Client messages, divided by partitions.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.PartitionData partition_data = 1;
         */
        public Builder addPartitionData(
            int index, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData value) {
          if (partitionDataBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            ensurePartitionDataIsMutable();
            partitionData_.add(index, value);
            onChanged();
          } else {
            partitionDataBuilder_.addMessage(index, value);
          }
          return this;
        }
        /**
         * 
         * Client messages, divided by partitions.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.PartitionData partition_data = 1;
         */
        public Builder addPartitionData(
            tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData.Builder builderForValue) {
          if (partitionDataBuilder_ == null) {
            ensurePartitionDataIsMutable();
            partitionData_.add(builderForValue.build());
            onChanged();
          } else {
            partitionDataBuilder_.addMessage(builderForValue.build());
          }
          return this;
        }
        /**
         * 
         * Client messages, divided by partitions.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.PartitionData partition_data = 1;
         */
        public Builder addPartitionData(
            int index, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData.Builder builderForValue) {
          if (partitionDataBuilder_ == null) {
            ensurePartitionDataIsMutable();
            partitionData_.add(index, builderForValue.build());
            onChanged();
          } else {
            partitionDataBuilder_.addMessage(index, builderForValue.build());
          }
          return this;
        }
        /**
         * 
         * Client messages, divided by partitions.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.PartitionData partition_data = 1;
         */
        public Builder addAllPartitionData(
            java.lang.Iterable values) {
          if (partitionDataBuilder_ == null) {
            ensurePartitionDataIsMutable();
            com.google.protobuf.AbstractMessageLite.Builder.addAll(
                values, partitionData_);
            onChanged();
          } else {
            partitionDataBuilder_.addAllMessages(values);
          }
          return this;
        }
        /**
         * 
         * Client messages, divided by partitions.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.PartitionData partition_data = 1;
         */
        public Builder clearPartitionData() {
          if (partitionDataBuilder_ == null) {
            partitionData_ = java.util.Collections.emptyList();
            bitField0_ = (bitField0_ & ~0x00000001);
            onChanged();
          } else {
            partitionDataBuilder_.clear();
          }
          return this;
        }
        /**
         * 
         * Client messages, divided by partitions.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.PartitionData partition_data = 1;
         */
        public Builder removePartitionData(int index) {
          if (partitionDataBuilder_ == null) {
            ensurePartitionDataIsMutable();
            partitionData_.remove(index);
            onChanged();
          } else {
            partitionDataBuilder_.remove(index);
          }
          return this;
        }
        /**
         * 
         * Client messages, divided by partitions.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.PartitionData partition_data = 1;
         */
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData.Builder getPartitionDataBuilder(
            int index) {
          return getPartitionDataFieldBuilder().getBuilder(index);
        }
        /**
         * 
         * Client messages, divided by partitions.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.PartitionData partition_data = 1;
         */
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionDataOrBuilder getPartitionDataOrBuilder(
            int index) {
          if (partitionDataBuilder_ == null) {
            return partitionData_.get(index);  } else {
            return partitionDataBuilder_.getMessageOrBuilder(index);
          }
        }
        /**
         * 
         * Client messages, divided by partitions.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.PartitionData partition_data = 1;
         */
        public java.util.List 
             getPartitionDataOrBuilderList() {
          if (partitionDataBuilder_ != null) {
            return partitionDataBuilder_.getMessageOrBuilderList();
          } else {
            return java.util.Collections.unmodifiableList(partitionData_);
          }
        }
        /**
         * 
         * Client messages, divided by partitions.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.PartitionData partition_data = 1;
         */
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData.Builder addPartitionDataBuilder() {
          return getPartitionDataFieldBuilder().addBuilder(
              tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData.getDefaultInstance());
        }
        /**
         * 
         * Client messages, divided by partitions.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.PartitionData partition_data = 1;
         */
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData.Builder addPartitionDataBuilder(
            int index) {
          return getPartitionDataFieldBuilder().addBuilder(
              index, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData.getDefaultInstance());
        }
        /**
         * 
         * Client messages, divided by partitions.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.ReadResponse.PartitionData partition_data = 1;
         */
        public java.util.List 
             getPartitionDataBuilderList() {
          return getPartitionDataFieldBuilder().getBuilderList();
        }
        private com.google.protobuf.RepeatedFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData.Builder, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionDataOrBuilder> 
            getPartitionDataFieldBuilder() {
          if (partitionDataBuilder_ == null) {
            partitionDataBuilder_ = new com.google.protobuf.RepeatedFieldBuilderV3<
                tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData.Builder, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionDataOrBuilder>(
                    partitionData_,
                    ((bitField0_ & 0x00000001) != 0),
                    getParentForChildren(),
                    isClean());
            partitionData_ = null;
          }
          return partitionDataBuilder_;
        }

        private long bytesSize_ ;
        /**
         * 
         * Total size in bytes of this response as calculated by server.
         * See ReadRequest comment above.
         * 
         *
         * int64 bytes_size = 2;
         * @return The bytesSize.
         */
        @java.lang.Override
        public long getBytesSize() {
          return bytesSize_;
        }
        /**
         * 
         * Total size in bytes of this response as calculated by server.
         * See ReadRequest comment above.
         * 
         *
         * int64 bytes_size = 2;
         * @param value The bytesSize to set.
         * @return This builder for chaining.
         */
        public Builder setBytesSize(long value) {

          bytesSize_ = value;
          bitField0_ |= 0x00000002;
          onChanged();
          return this;
        }
        /**
         * 
         * Total size in bytes of this response as calculated by server.
         * See ReadRequest comment above.
         * 
         *
         * int64 bytes_size = 2;
         * @return This builder for chaining.
         */
        public Builder clearBytesSize() {
          bitField0_ = (bitField0_ & ~0x00000002);
          bytesSize_ = 0L;
          onChanged();
          return this;
        }
        @java.lang.Override
        public final Builder setUnknownFields(
            final com.google.protobuf.UnknownFieldSet unknownFields) {
          return super.setUnknownFields(unknownFields);
        }

        @java.lang.Override
        public final Builder mergeUnknownFields(
            final com.google.protobuf.UnknownFieldSet unknownFields) {
          return super.mergeUnknownFields(unknownFields);
        }


        // @@protoc_insertion_point(builder_scope:Ydb.Topic.StreamReadMessage.ReadResponse)
      }

      // @@protoc_insertion_point(class_scope:Ydb.Topic.StreamReadMessage.ReadResponse)
      private static final tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse DEFAULT_INSTANCE;
      static {
        DEFAULT_INSTANCE = new tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse();
      }

      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse getDefaultInstance() {
        return DEFAULT_INSTANCE;
      }

      private static final com.google.protobuf.Parser
          PARSER = new com.google.protobuf.AbstractParser() {
        @java.lang.Override
        public ReadResponse parsePartialFrom(
            com.google.protobuf.CodedInputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws com.google.protobuf.InvalidProtocolBufferException {
          Builder builder = newBuilder();
          try {
            builder.mergeFrom(input, extensionRegistry);
          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
            throw e.setUnfinishedMessage(builder.buildPartial());
          } catch (com.google.protobuf.UninitializedMessageException e) {
            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
          } catch (java.io.IOException e) {
            throw new com.google.protobuf.InvalidProtocolBufferException(e)
                .setUnfinishedMessage(builder.buildPartial());
          }
          return builder.buildPartial();
        }
      };

      public static com.google.protobuf.Parser parser() {
        return PARSER;
      }

      @java.lang.Override
      public com.google.protobuf.Parser getParserForType() {
        return PARSER;
      }

      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse getDefaultInstanceForType() {
        return DEFAULT_INSTANCE;
      }

    }

    public interface CommitOffsetRequestOrBuilder extends
        // @@protoc_insertion_point(interface_extends:Ydb.Topic.StreamReadMessage.CommitOffsetRequest)
        com.google.protobuf.MessageOrBuilder {

      /**
       * 
       * Partition offsets that indicates processed data.
       * 
       *
       * repeated .Ydb.Topic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset commit_offsets = 1;
       */
      java.util.List 
          getCommitOffsetsList();
      /**
       * 
       * Partition offsets that indicates processed data.
       * 
       *
       * repeated .Ydb.Topic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset commit_offsets = 1;
       */
      tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset getCommitOffsets(int index);
      /**
       * 
       * Partition offsets that indicates processed data.
       * 
       *
       * repeated .Ydb.Topic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset commit_offsets = 1;
       */
      int getCommitOffsetsCount();
      /**
       * 
       * Partition offsets that indicates processed data.
       * 
       *
       * repeated .Ydb.Topic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset commit_offsets = 1;
       */
      java.util.List 
          getCommitOffsetsOrBuilderList();
      /**
       * 
       * Partition offsets that indicates processed data.
       * 
       *
       * repeated .Ydb.Topic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset commit_offsets = 1;
       */
      tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffsetOrBuilder getCommitOffsetsOrBuilder(
          int index);
    }
    /**
     * 
     * Signal for server that client processed some read data.
     * 
     *
     * Protobuf type {@code Ydb.Topic.StreamReadMessage.CommitOffsetRequest}
     */
    public static final class CommitOffsetRequest extends
        com.google.protobuf.GeneratedMessageV3 implements
        // @@protoc_insertion_point(message_implements:Ydb.Topic.StreamReadMessage.CommitOffsetRequest)
        CommitOffsetRequestOrBuilder {
    private static final long serialVersionUID = 0L;
      // Use CommitOffsetRequest.newBuilder() to construct.
      private CommitOffsetRequest(com.google.protobuf.GeneratedMessageV3.Builder builder) {
        super(builder);
      }
      private CommitOffsetRequest() {
        commitOffsets_ = java.util.Collections.emptyList();
      }

      @java.lang.Override
      @SuppressWarnings({"unused"})
      protected java.lang.Object newInstance(
          UnusedPrivateParameter unused) {
        return new CommitOffsetRequest();
      }

      public static final com.google.protobuf.Descriptors.Descriptor
          getDescriptor() {
        return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamReadMessage_CommitOffsetRequest_descriptor;
      }

      @java.lang.Override
      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
          internalGetFieldAccessorTable() {
        return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamReadMessage_CommitOffsetRequest_fieldAccessorTable
            .ensureFieldAccessorsInitialized(
                tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.class, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.Builder.class);
      }

      public interface PartitionCommitOffsetOrBuilder extends
          // @@protoc_insertion_point(interface_extends:Ydb.Topic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset)
          com.google.protobuf.MessageOrBuilder {

        /**
         * 
         * Identifier of partition session with data to commit.
         * 
         *
         * int64 partition_session_id = 1;
         * @return The partitionSessionId.
         */
        long getPartitionSessionId();

        /**
         * 
         * Processed offsets ranges, repeated in case of disjoint ranges.
         * 
         *
         * repeated .Ydb.Topic.OffsetsRange offsets = 2;
         */
        java.util.List 
            getOffsetsList();
        /**
         * 
         * Processed offsets ranges, repeated in case of disjoint ranges.
         * 
         *
         * repeated .Ydb.Topic.OffsetsRange offsets = 2;
         */
        tech.ydb.proto.topic.YdbTopic.OffsetsRange getOffsets(int index);
        /**
         * 
         * Processed offsets ranges, repeated in case of disjoint ranges.
         * 
         *
         * repeated .Ydb.Topic.OffsetsRange offsets = 2;
         */
        int getOffsetsCount();
        /**
         * 
         * Processed offsets ranges, repeated in case of disjoint ranges.
         * 
         *
         * repeated .Ydb.Topic.OffsetsRange offsets = 2;
         */
        java.util.List 
            getOffsetsOrBuilderList();
        /**
         * 
         * Processed offsets ranges, repeated in case of disjoint ranges.
         * 
         *
         * repeated .Ydb.Topic.OffsetsRange offsets = 2;
         */
        tech.ydb.proto.topic.YdbTopic.OffsetsRangeOrBuilder getOffsetsOrBuilder(
            int index);
      }
      /**
       * 
       * Message that is used for describing commit.
       * 
       *
       * Protobuf type {@code Ydb.Topic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset}
       */
      public static final class PartitionCommitOffset extends
          com.google.protobuf.GeneratedMessageV3 implements
          // @@protoc_insertion_point(message_implements:Ydb.Topic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset)
          PartitionCommitOffsetOrBuilder {
      private static final long serialVersionUID = 0L;
        // Use PartitionCommitOffset.newBuilder() to construct.
        private PartitionCommitOffset(com.google.protobuf.GeneratedMessageV3.Builder builder) {
          super(builder);
        }
        private PartitionCommitOffset() {
          offsets_ = java.util.Collections.emptyList();
        }

        @java.lang.Override
        @SuppressWarnings({"unused"})
        protected java.lang.Object newInstance(
            UnusedPrivateParameter unused) {
          return new PartitionCommitOffset();
        }

        public static final com.google.protobuf.Descriptors.Descriptor
            getDescriptor() {
          return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamReadMessage_CommitOffsetRequest_PartitionCommitOffset_descriptor;
        }

        @java.lang.Override
        protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
            internalGetFieldAccessorTable() {
          return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamReadMessage_CommitOffsetRequest_PartitionCommitOffset_fieldAccessorTable
              .ensureFieldAccessorsInitialized(
                  tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset.class, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset.Builder.class);
        }

        public static final int PARTITION_SESSION_ID_FIELD_NUMBER = 1;
        private long partitionSessionId_ = 0L;
        /**
         * 
         * Identifier of partition session with data to commit.
         * 
         *
         * int64 partition_session_id = 1;
         * @return The partitionSessionId.
         */
        @java.lang.Override
        public long getPartitionSessionId() {
          return partitionSessionId_;
        }

        public static final int OFFSETS_FIELD_NUMBER = 2;
        @SuppressWarnings("serial")
        private java.util.List offsets_;
        /**
         * 
         * Processed offsets ranges, repeated in case of disjoint ranges.
         * 
         *
         * repeated .Ydb.Topic.OffsetsRange offsets = 2;
         */
        @java.lang.Override
        public java.util.List getOffsetsList() {
          return offsets_;
        }
        /**
         * 
         * Processed offsets ranges, repeated in case of disjoint ranges.
         * 
         *
         * repeated .Ydb.Topic.OffsetsRange offsets = 2;
         */
        @java.lang.Override
        public java.util.List 
            getOffsetsOrBuilderList() {
          return offsets_;
        }
        /**
         * 
         * Processed offsets ranges, repeated in case of disjoint ranges.
         * 
         *
         * repeated .Ydb.Topic.OffsetsRange offsets = 2;
         */
        @java.lang.Override
        public int getOffsetsCount() {
          return offsets_.size();
        }
        /**
         * 
         * Processed offsets ranges, repeated in case of disjoint ranges.
         * 
         *
         * repeated .Ydb.Topic.OffsetsRange offsets = 2;
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.OffsetsRange getOffsets(int index) {
          return offsets_.get(index);
        }
        /**
         * 
         * Processed offsets ranges, repeated in case of disjoint ranges.
         * 
         *
         * repeated .Ydb.Topic.OffsetsRange offsets = 2;
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.OffsetsRangeOrBuilder getOffsetsOrBuilder(
            int index) {
          return offsets_.get(index);
        }

        private byte memoizedIsInitialized = -1;
        @java.lang.Override
        public final boolean isInitialized() {
          byte isInitialized = memoizedIsInitialized;
          if (isInitialized == 1) return true;
          if (isInitialized == 0) return false;

          memoizedIsInitialized = 1;
          return true;
        }

        @java.lang.Override
        public void writeTo(com.google.protobuf.CodedOutputStream output)
                            throws java.io.IOException {
          if (partitionSessionId_ != 0L) {
            output.writeInt64(1, partitionSessionId_);
          }
          for (int i = 0; i < offsets_.size(); i++) {
            output.writeMessage(2, offsets_.get(i));
          }
          getUnknownFields().writeTo(output);
        }

        @java.lang.Override
        public int getSerializedSize() {
          int size = memoizedSize;
          if (size != -1) return size;

          size = 0;
          if (partitionSessionId_ != 0L) {
            size += com.google.protobuf.CodedOutputStream
              .computeInt64Size(1, partitionSessionId_);
          }
          for (int i = 0; i < offsets_.size(); i++) {
            size += com.google.protobuf.CodedOutputStream
              .computeMessageSize(2, offsets_.get(i));
          }
          size += getUnknownFields().getSerializedSize();
          memoizedSize = size;
          return size;
        }

        @java.lang.Override
        public boolean equals(final java.lang.Object obj) {
          if (obj == this) {
           return true;
          }
          if (!(obj instanceof tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset)) {
            return super.equals(obj);
          }
          tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset other = (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset) obj;

          if (getPartitionSessionId()
              != other.getPartitionSessionId()) return false;
          if (!getOffsetsList()
              .equals(other.getOffsetsList())) return false;
          if (!getUnknownFields().equals(other.getUnknownFields())) return false;
          return true;
        }

        @java.lang.Override
        public int hashCode() {
          if (memoizedHashCode != 0) {
            return memoizedHashCode;
          }
          int hash = 41;
          hash = (19 * hash) + getDescriptor().hashCode();
          hash = (37 * hash) + PARTITION_SESSION_ID_FIELD_NUMBER;
          hash = (53 * hash) + com.google.protobuf.Internal.hashLong(
              getPartitionSessionId());
          if (getOffsetsCount() > 0) {
            hash = (37 * hash) + OFFSETS_FIELD_NUMBER;
            hash = (53 * hash) + getOffsetsList().hashCode();
          }
          hash = (29 * hash) + getUnknownFields().hashCode();
          memoizedHashCode = hash;
          return hash;
        }

        public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset parseFrom(
            java.nio.ByteBuffer data)
            throws com.google.protobuf.InvalidProtocolBufferException {
          return PARSER.parseFrom(data);
        }
        public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset parseFrom(
            java.nio.ByteBuffer data,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws com.google.protobuf.InvalidProtocolBufferException {
          return PARSER.parseFrom(data, extensionRegistry);
        }
        public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset parseFrom(
            com.google.protobuf.ByteString data)
            throws com.google.protobuf.InvalidProtocolBufferException {
          return PARSER.parseFrom(data);
        }
        public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset parseFrom(
            com.google.protobuf.ByteString data,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws com.google.protobuf.InvalidProtocolBufferException {
          return PARSER.parseFrom(data, extensionRegistry);
        }
        public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset parseFrom(byte[] data)
            throws com.google.protobuf.InvalidProtocolBufferException {
          return PARSER.parseFrom(data);
        }
        public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset parseFrom(
            byte[] data,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws com.google.protobuf.InvalidProtocolBufferException {
          return PARSER.parseFrom(data, extensionRegistry);
        }
        public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset parseFrom(java.io.InputStream input)
            throws java.io.IOException {
          return com.google.protobuf.GeneratedMessageV3
              .parseWithIOException(PARSER, input);
        }
        public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset parseFrom(
            java.io.InputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws java.io.IOException {
          return com.google.protobuf.GeneratedMessageV3
              .parseWithIOException(PARSER, input, extensionRegistry);
        }

        public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset parseDelimitedFrom(java.io.InputStream input)
            throws java.io.IOException {
          return com.google.protobuf.GeneratedMessageV3
              .parseDelimitedWithIOException(PARSER, input);
        }

        public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset parseDelimitedFrom(
            java.io.InputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws java.io.IOException {
          return com.google.protobuf.GeneratedMessageV3
              .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
        }
        public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset parseFrom(
            com.google.protobuf.CodedInputStream input)
            throws java.io.IOException {
          return com.google.protobuf.GeneratedMessageV3
              .parseWithIOException(PARSER, input);
        }
        public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset parseFrom(
            com.google.protobuf.CodedInputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws java.io.IOException {
          return com.google.protobuf.GeneratedMessageV3
              .parseWithIOException(PARSER, input, extensionRegistry);
        }

        @java.lang.Override
        public Builder newBuilderForType() { return newBuilder(); }
        public static Builder newBuilder() {
          return DEFAULT_INSTANCE.toBuilder();
        }
        public static Builder newBuilder(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset prototype) {
          return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
        }
        @java.lang.Override
        public Builder toBuilder() {
          return this == DEFAULT_INSTANCE
              ? new Builder() : new Builder().mergeFrom(this);
        }

        @java.lang.Override
        protected Builder newBuilderForType(
            com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
          Builder builder = new Builder(parent);
          return builder;
        }
        /**
         * 
         * Message that is used for describing commit.
         * 
         *
         * Protobuf type {@code Ydb.Topic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset}
         */
        public static final class Builder extends
            com.google.protobuf.GeneratedMessageV3.Builder implements
            // @@protoc_insertion_point(builder_implements:Ydb.Topic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset)
            tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffsetOrBuilder {
          public static final com.google.protobuf.Descriptors.Descriptor
              getDescriptor() {
            return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamReadMessage_CommitOffsetRequest_PartitionCommitOffset_descriptor;
          }

          @java.lang.Override
          protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
              internalGetFieldAccessorTable() {
            return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamReadMessage_CommitOffsetRequest_PartitionCommitOffset_fieldAccessorTable
                .ensureFieldAccessorsInitialized(
                    tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset.class, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset.Builder.class);
          }

          // Construct using tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset.newBuilder()
          private Builder() {

          }

          private Builder(
              com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
            super(parent);

          }
          @java.lang.Override
          public Builder clear() {
            super.clear();
            bitField0_ = 0;
            partitionSessionId_ = 0L;
            if (offsetsBuilder_ == null) {
              offsets_ = java.util.Collections.emptyList();
            } else {
              offsets_ = null;
              offsetsBuilder_.clear();
            }
            bitField0_ = (bitField0_ & ~0x00000002);
            return this;
          }

          @java.lang.Override
          public com.google.protobuf.Descriptors.Descriptor
              getDescriptorForType() {
            return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamReadMessage_CommitOffsetRequest_PartitionCommitOffset_descriptor;
          }

          @java.lang.Override
          public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset getDefaultInstanceForType() {
            return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset.getDefaultInstance();
          }

          @java.lang.Override
          public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset build() {
            tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset result = buildPartial();
            if (!result.isInitialized()) {
              throw newUninitializedMessageException(result);
            }
            return result;
          }

          @java.lang.Override
          public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset buildPartial() {
            tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset result = new tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset(this);
            buildPartialRepeatedFields(result);
            if (bitField0_ != 0) { buildPartial0(result); }
            onBuilt();
            return result;
          }

          private void buildPartialRepeatedFields(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset result) {
            if (offsetsBuilder_ == null) {
              if (((bitField0_ & 0x00000002) != 0)) {
                offsets_ = java.util.Collections.unmodifiableList(offsets_);
                bitField0_ = (bitField0_ & ~0x00000002);
              }
              result.offsets_ = offsets_;
            } else {
              result.offsets_ = offsetsBuilder_.build();
            }
          }

          private void buildPartial0(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset result) {
            int from_bitField0_ = bitField0_;
            if (((from_bitField0_ & 0x00000001) != 0)) {
              result.partitionSessionId_ = partitionSessionId_;
            }
          }

          @java.lang.Override
          public Builder clone() {
            return super.clone();
          }
          @java.lang.Override
          public Builder setField(
              com.google.protobuf.Descriptors.FieldDescriptor field,
              java.lang.Object value) {
            return super.setField(field, value);
          }
          @java.lang.Override
          public Builder clearField(
              com.google.protobuf.Descriptors.FieldDescriptor field) {
            return super.clearField(field);
          }
          @java.lang.Override
          public Builder clearOneof(
              com.google.protobuf.Descriptors.OneofDescriptor oneof) {
            return super.clearOneof(oneof);
          }
          @java.lang.Override
          public Builder setRepeatedField(
              com.google.protobuf.Descriptors.FieldDescriptor field,
              int index, java.lang.Object value) {
            return super.setRepeatedField(field, index, value);
          }
          @java.lang.Override
          public Builder addRepeatedField(
              com.google.protobuf.Descriptors.FieldDescriptor field,
              java.lang.Object value) {
            return super.addRepeatedField(field, value);
          }
          @java.lang.Override
          public Builder mergeFrom(com.google.protobuf.Message other) {
            if (other instanceof tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset) {
              return mergeFrom((tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset)other);
            } else {
              super.mergeFrom(other);
              return this;
            }
          }

          public Builder mergeFrom(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset other) {
            if (other == tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset.getDefaultInstance()) return this;
            if (other.getPartitionSessionId() != 0L) {
              setPartitionSessionId(other.getPartitionSessionId());
            }
            if (offsetsBuilder_ == null) {
              if (!other.offsets_.isEmpty()) {
                if (offsets_.isEmpty()) {
                  offsets_ = other.offsets_;
                  bitField0_ = (bitField0_ & ~0x00000002);
                } else {
                  ensureOffsetsIsMutable();
                  offsets_.addAll(other.offsets_);
                }
                onChanged();
              }
            } else {
              if (!other.offsets_.isEmpty()) {
                if (offsetsBuilder_.isEmpty()) {
                  offsetsBuilder_.dispose();
                  offsetsBuilder_ = null;
                  offsets_ = other.offsets_;
                  bitField0_ = (bitField0_ & ~0x00000002);
                  offsetsBuilder_ = 
                    com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders ?
                       getOffsetsFieldBuilder() : null;
                } else {
                  offsetsBuilder_.addAllMessages(other.offsets_);
                }
              }
            }
            this.mergeUnknownFields(other.getUnknownFields());
            onChanged();
            return this;
          }

          @java.lang.Override
          public final boolean isInitialized() {
            return true;
          }

          @java.lang.Override
          public Builder mergeFrom(
              com.google.protobuf.CodedInputStream input,
              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
              throws java.io.IOException {
            if (extensionRegistry == null) {
              throw new java.lang.NullPointerException();
            }
            try {
              boolean done = false;
              while (!done) {
                int tag = input.readTag();
                switch (tag) {
                  case 0:
                    done = true;
                    break;
                  case 8: {
                    partitionSessionId_ = input.readInt64();
                    bitField0_ |= 0x00000001;
                    break;
                  } // case 8
                  case 18: {
                    tech.ydb.proto.topic.YdbTopic.OffsetsRange m =
                        input.readMessage(
                            tech.ydb.proto.topic.YdbTopic.OffsetsRange.parser(),
                            extensionRegistry);
                    if (offsetsBuilder_ == null) {
                      ensureOffsetsIsMutable();
                      offsets_.add(m);
                    } else {
                      offsetsBuilder_.addMessage(m);
                    }
                    break;
                  } // case 18
                  default: {
                    if (!super.parseUnknownField(input, extensionRegistry, tag)) {
                      done = true; // was an endgroup tag
                    }
                    break;
                  } // default:
                } // switch (tag)
              } // while (!done)
            } catch (com.google.protobuf.InvalidProtocolBufferException e) {
              throw e.unwrapIOException();
            } finally {
              onChanged();
            } // finally
            return this;
          }
          private int bitField0_;

          private long partitionSessionId_ ;
          /**
           * 
           * Identifier of partition session with data to commit.
           * 
           *
           * int64 partition_session_id = 1;
           * @return The partitionSessionId.
           */
          @java.lang.Override
          public long getPartitionSessionId() {
            return partitionSessionId_;
          }
          /**
           * 
           * Identifier of partition session with data to commit.
           * 
           *
           * int64 partition_session_id = 1;
           * @param value The partitionSessionId to set.
           * @return This builder for chaining.
           */
          public Builder setPartitionSessionId(long value) {

            partitionSessionId_ = value;
            bitField0_ |= 0x00000001;
            onChanged();
            return this;
          }
          /**
           * 
           * Identifier of partition session with data to commit.
           * 
           *
           * int64 partition_session_id = 1;
           * @return This builder for chaining.
           */
          public Builder clearPartitionSessionId() {
            bitField0_ = (bitField0_ & ~0x00000001);
            partitionSessionId_ = 0L;
            onChanged();
            return this;
          }

          private java.util.List offsets_ =
            java.util.Collections.emptyList();
          private void ensureOffsetsIsMutable() {
            if (!((bitField0_ & 0x00000002) != 0)) {
              offsets_ = new java.util.ArrayList(offsets_);
              bitField0_ |= 0x00000002;
             }
          }

          private com.google.protobuf.RepeatedFieldBuilderV3<
              tech.ydb.proto.topic.YdbTopic.OffsetsRange, tech.ydb.proto.topic.YdbTopic.OffsetsRange.Builder, tech.ydb.proto.topic.YdbTopic.OffsetsRangeOrBuilder> offsetsBuilder_;

          /**
           * 
           * Processed offsets ranges, repeated in case of disjoint ranges.
           * 
           *
           * repeated .Ydb.Topic.OffsetsRange offsets = 2;
           */
          public java.util.List getOffsetsList() {
            if (offsetsBuilder_ == null) {
              return java.util.Collections.unmodifiableList(offsets_);
            } else {
              return offsetsBuilder_.getMessageList();
            }
          }
          /**
           * 
           * Processed offsets ranges, repeated in case of disjoint ranges.
           * 
           *
           * repeated .Ydb.Topic.OffsetsRange offsets = 2;
           */
          public int getOffsetsCount() {
            if (offsetsBuilder_ == null) {
              return offsets_.size();
            } else {
              return offsetsBuilder_.getCount();
            }
          }
          /**
           * 
           * Processed offsets ranges, repeated in case of disjoint ranges.
           * 
           *
           * repeated .Ydb.Topic.OffsetsRange offsets = 2;
           */
          public tech.ydb.proto.topic.YdbTopic.OffsetsRange getOffsets(int index) {
            if (offsetsBuilder_ == null) {
              return offsets_.get(index);
            } else {
              return offsetsBuilder_.getMessage(index);
            }
          }
          /**
           * 
           * Processed offsets ranges, repeated in case of disjoint ranges.
           * 
           *
           * repeated .Ydb.Topic.OffsetsRange offsets = 2;
           */
          public Builder setOffsets(
              int index, tech.ydb.proto.topic.YdbTopic.OffsetsRange value) {
            if (offsetsBuilder_ == null) {
              if (value == null) {
                throw new NullPointerException();
              }
              ensureOffsetsIsMutable();
              offsets_.set(index, value);
              onChanged();
            } else {
              offsetsBuilder_.setMessage(index, value);
            }
            return this;
          }
          /**
           * 
           * Processed offsets ranges, repeated in case of disjoint ranges.
           * 
           *
           * repeated .Ydb.Topic.OffsetsRange offsets = 2;
           */
          public Builder setOffsets(
              int index, tech.ydb.proto.topic.YdbTopic.OffsetsRange.Builder builderForValue) {
            if (offsetsBuilder_ == null) {
              ensureOffsetsIsMutable();
              offsets_.set(index, builderForValue.build());
              onChanged();
            } else {
              offsetsBuilder_.setMessage(index, builderForValue.build());
            }
            return this;
          }
          /**
           * 
           * Processed offsets ranges, repeated in case of disjoint ranges.
           * 
           *
           * repeated .Ydb.Topic.OffsetsRange offsets = 2;
           */
          public Builder addOffsets(tech.ydb.proto.topic.YdbTopic.OffsetsRange value) {
            if (offsetsBuilder_ == null) {
              if (value == null) {
                throw new NullPointerException();
              }
              ensureOffsetsIsMutable();
              offsets_.add(value);
              onChanged();
            } else {
              offsetsBuilder_.addMessage(value);
            }
            return this;
          }
          /**
           * 
           * Processed offsets ranges, repeated in case of disjoint ranges.
           * 
           *
           * repeated .Ydb.Topic.OffsetsRange offsets = 2;
           */
          public Builder addOffsets(
              int index, tech.ydb.proto.topic.YdbTopic.OffsetsRange value) {
            if (offsetsBuilder_ == null) {
              if (value == null) {
                throw new NullPointerException();
              }
              ensureOffsetsIsMutable();
              offsets_.add(index, value);
              onChanged();
            } else {
              offsetsBuilder_.addMessage(index, value);
            }
            return this;
          }
          /**
           * 
           * Processed offsets ranges, repeated in case of disjoint ranges.
           * 
           *
           * repeated .Ydb.Topic.OffsetsRange offsets = 2;
           */
          public Builder addOffsets(
              tech.ydb.proto.topic.YdbTopic.OffsetsRange.Builder builderForValue) {
            if (offsetsBuilder_ == null) {
              ensureOffsetsIsMutable();
              offsets_.add(builderForValue.build());
              onChanged();
            } else {
              offsetsBuilder_.addMessage(builderForValue.build());
            }
            return this;
          }
          /**
           * 
           * Processed offsets ranges, repeated in case of disjoint ranges.
           * 
           *
           * repeated .Ydb.Topic.OffsetsRange offsets = 2;
           */
          public Builder addOffsets(
              int index, tech.ydb.proto.topic.YdbTopic.OffsetsRange.Builder builderForValue) {
            if (offsetsBuilder_ == null) {
              ensureOffsetsIsMutable();
              offsets_.add(index, builderForValue.build());
              onChanged();
            } else {
              offsetsBuilder_.addMessage(index, builderForValue.build());
            }
            return this;
          }
          /**
           * 
           * Processed offsets ranges, repeated in case of disjoint ranges.
           * 
           *
           * repeated .Ydb.Topic.OffsetsRange offsets = 2;
           */
          public Builder addAllOffsets(
              java.lang.Iterable values) {
            if (offsetsBuilder_ == null) {
              ensureOffsetsIsMutable();
              com.google.protobuf.AbstractMessageLite.Builder.addAll(
                  values, offsets_);
              onChanged();
            } else {
              offsetsBuilder_.addAllMessages(values);
            }
            return this;
          }
          /**
           * 
           * Processed offsets ranges, repeated in case of disjoint ranges.
           * 
           *
           * repeated .Ydb.Topic.OffsetsRange offsets = 2;
           */
          public Builder clearOffsets() {
            if (offsetsBuilder_ == null) {
              offsets_ = java.util.Collections.emptyList();
              bitField0_ = (bitField0_ & ~0x00000002);
              onChanged();
            } else {
              offsetsBuilder_.clear();
            }
            return this;
          }
          /**
           * 
           * Processed offsets ranges, repeated in case of disjoint ranges.
           * 
           *
           * repeated .Ydb.Topic.OffsetsRange offsets = 2;
           */
          public Builder removeOffsets(int index) {
            if (offsetsBuilder_ == null) {
              ensureOffsetsIsMutable();
              offsets_.remove(index);
              onChanged();
            } else {
              offsetsBuilder_.remove(index);
            }
            return this;
          }
          /**
           * 
           * Processed offsets ranges, repeated in case of disjoint ranges.
           * 
           *
           * repeated .Ydb.Topic.OffsetsRange offsets = 2;
           */
          public tech.ydb.proto.topic.YdbTopic.OffsetsRange.Builder getOffsetsBuilder(
              int index) {
            return getOffsetsFieldBuilder().getBuilder(index);
          }
          /**
           * 
           * Processed offsets ranges, repeated in case of disjoint ranges.
           * 
           *
           * repeated .Ydb.Topic.OffsetsRange offsets = 2;
           */
          public tech.ydb.proto.topic.YdbTopic.OffsetsRangeOrBuilder getOffsetsOrBuilder(
              int index) {
            if (offsetsBuilder_ == null) {
              return offsets_.get(index);  } else {
              return offsetsBuilder_.getMessageOrBuilder(index);
            }
          }
          /**
           * 
           * Processed offsets ranges, repeated in case of disjoint ranges.
           * 
           *
           * repeated .Ydb.Topic.OffsetsRange offsets = 2;
           */
          public java.util.List 
               getOffsetsOrBuilderList() {
            if (offsetsBuilder_ != null) {
              return offsetsBuilder_.getMessageOrBuilderList();
            } else {
              return java.util.Collections.unmodifiableList(offsets_);
            }
          }
          /**
           * 
           * Processed offsets ranges, repeated in case of disjoint ranges.
           * 
           *
           * repeated .Ydb.Topic.OffsetsRange offsets = 2;
           */
          public tech.ydb.proto.topic.YdbTopic.OffsetsRange.Builder addOffsetsBuilder() {
            return getOffsetsFieldBuilder().addBuilder(
                tech.ydb.proto.topic.YdbTopic.OffsetsRange.getDefaultInstance());
          }
          /**
           * 
           * Processed offsets ranges, repeated in case of disjoint ranges.
           * 
           *
           * repeated .Ydb.Topic.OffsetsRange offsets = 2;
           */
          public tech.ydb.proto.topic.YdbTopic.OffsetsRange.Builder addOffsetsBuilder(
              int index) {
            return getOffsetsFieldBuilder().addBuilder(
                index, tech.ydb.proto.topic.YdbTopic.OffsetsRange.getDefaultInstance());
          }
          /**
           * 
           * Processed offsets ranges, repeated in case of disjoint ranges.
           * 
           *
           * repeated .Ydb.Topic.OffsetsRange offsets = 2;
           */
          public java.util.List 
               getOffsetsBuilderList() {
            return getOffsetsFieldBuilder().getBuilderList();
          }
          private com.google.protobuf.RepeatedFieldBuilderV3<
              tech.ydb.proto.topic.YdbTopic.OffsetsRange, tech.ydb.proto.topic.YdbTopic.OffsetsRange.Builder, tech.ydb.proto.topic.YdbTopic.OffsetsRangeOrBuilder> 
              getOffsetsFieldBuilder() {
            if (offsetsBuilder_ == null) {
              offsetsBuilder_ = new com.google.protobuf.RepeatedFieldBuilderV3<
                  tech.ydb.proto.topic.YdbTopic.OffsetsRange, tech.ydb.proto.topic.YdbTopic.OffsetsRange.Builder, tech.ydb.proto.topic.YdbTopic.OffsetsRangeOrBuilder>(
                      offsets_,
                      ((bitField0_ & 0x00000002) != 0),
                      getParentForChildren(),
                      isClean());
              offsets_ = null;
            }
            return offsetsBuilder_;
          }
          @java.lang.Override
          public final Builder setUnknownFields(
              final com.google.protobuf.UnknownFieldSet unknownFields) {
            return super.setUnknownFields(unknownFields);
          }

          @java.lang.Override
          public final Builder mergeUnknownFields(
              final com.google.protobuf.UnknownFieldSet unknownFields) {
            return super.mergeUnknownFields(unknownFields);
          }


          // @@protoc_insertion_point(builder_scope:Ydb.Topic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset)
        }

        // @@protoc_insertion_point(class_scope:Ydb.Topic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset)
        private static final tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset DEFAULT_INSTANCE;
        static {
          DEFAULT_INSTANCE = new tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset();
        }

        public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset getDefaultInstance() {
          return DEFAULT_INSTANCE;
        }

        private static final com.google.protobuf.Parser
            PARSER = new com.google.protobuf.AbstractParser() {
          @java.lang.Override
          public PartitionCommitOffset parsePartialFrom(
              com.google.protobuf.CodedInputStream input,
              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
              throws com.google.protobuf.InvalidProtocolBufferException {
            Builder builder = newBuilder();
            try {
              builder.mergeFrom(input, extensionRegistry);
            } catch (com.google.protobuf.InvalidProtocolBufferException e) {
              throw e.setUnfinishedMessage(builder.buildPartial());
            } catch (com.google.protobuf.UninitializedMessageException e) {
              throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
            } catch (java.io.IOException e) {
              throw new com.google.protobuf.InvalidProtocolBufferException(e)
                  .setUnfinishedMessage(builder.buildPartial());
            }
            return builder.buildPartial();
          }
        };

        public static com.google.protobuf.Parser parser() {
          return PARSER;
        }

        @java.lang.Override
        public com.google.protobuf.Parser getParserForType() {
          return PARSER;
        }

        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset getDefaultInstanceForType() {
          return DEFAULT_INSTANCE;
        }

      }

      public static final int COMMIT_OFFSETS_FIELD_NUMBER = 1;
      @SuppressWarnings("serial")
      private java.util.List commitOffsets_;
      /**
       * 
       * Partition offsets that indicates processed data.
       * 
       *
       * repeated .Ydb.Topic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset commit_offsets = 1;
       */
      @java.lang.Override
      public java.util.List getCommitOffsetsList() {
        return commitOffsets_;
      }
      /**
       * 
       * Partition offsets that indicates processed data.
       * 
       *
       * repeated .Ydb.Topic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset commit_offsets = 1;
       */
      @java.lang.Override
      public java.util.List 
          getCommitOffsetsOrBuilderList() {
        return commitOffsets_;
      }
      /**
       * 
       * Partition offsets that indicates processed data.
       * 
       *
       * repeated .Ydb.Topic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset commit_offsets = 1;
       */
      @java.lang.Override
      public int getCommitOffsetsCount() {
        return commitOffsets_.size();
      }
      /**
       * 
       * Partition offsets that indicates processed data.
       * 
       *
       * repeated .Ydb.Topic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset commit_offsets = 1;
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset getCommitOffsets(int index) {
        return commitOffsets_.get(index);
      }
      /**
       * 
       * Partition offsets that indicates processed data.
       * 
       *
       * repeated .Ydb.Topic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset commit_offsets = 1;
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffsetOrBuilder getCommitOffsetsOrBuilder(
          int index) {
        return commitOffsets_.get(index);
      }

      private byte memoizedIsInitialized = -1;
      @java.lang.Override
      public final boolean isInitialized() {
        byte isInitialized = memoizedIsInitialized;
        if (isInitialized == 1) return true;
        if (isInitialized == 0) return false;

        memoizedIsInitialized = 1;
        return true;
      }

      @java.lang.Override
      public void writeTo(com.google.protobuf.CodedOutputStream output)
                          throws java.io.IOException {
        for (int i = 0; i < commitOffsets_.size(); i++) {
          output.writeMessage(1, commitOffsets_.get(i));
        }
        getUnknownFields().writeTo(output);
      }

      @java.lang.Override
      public int getSerializedSize() {
        int size = memoizedSize;
        if (size != -1) return size;

        size = 0;
        for (int i = 0; i < commitOffsets_.size(); i++) {
          size += com.google.protobuf.CodedOutputStream
            .computeMessageSize(1, commitOffsets_.get(i));
        }
        size += getUnknownFields().getSerializedSize();
        memoizedSize = size;
        return size;
      }

      @java.lang.Override
      public boolean equals(final java.lang.Object obj) {
        if (obj == this) {
         return true;
        }
        if (!(obj instanceof tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest)) {
          return super.equals(obj);
        }
        tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest other = (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest) obj;

        if (!getCommitOffsetsList()
            .equals(other.getCommitOffsetsList())) return false;
        if (!getUnknownFields().equals(other.getUnknownFields())) return false;
        return true;
      }

      @java.lang.Override
      public int hashCode() {
        if (memoizedHashCode != 0) {
          return memoizedHashCode;
        }
        int hash = 41;
        hash = (19 * hash) + getDescriptor().hashCode();
        if (getCommitOffsetsCount() > 0) {
          hash = (37 * hash) + COMMIT_OFFSETS_FIELD_NUMBER;
          hash = (53 * hash) + getCommitOffsetsList().hashCode();
        }
        hash = (29 * hash) + getUnknownFields().hashCode();
        memoizedHashCode = hash;
        return hash;
      }

      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest parseFrom(
          java.nio.ByteBuffer data)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest parseFrom(
          java.nio.ByteBuffer data,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data, extensionRegistry);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest parseFrom(
          com.google.protobuf.ByteString data)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest parseFrom(
          com.google.protobuf.ByteString data,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data, extensionRegistry);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest parseFrom(byte[] data)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest parseFrom(
          byte[] data,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data, extensionRegistry);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest parseFrom(java.io.InputStream input)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseWithIOException(PARSER, input);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest parseFrom(
          java.io.InputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseWithIOException(PARSER, input, extensionRegistry);
      }

      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest parseDelimitedFrom(java.io.InputStream input)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseDelimitedWithIOException(PARSER, input);
      }

      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest parseDelimitedFrom(
          java.io.InputStream input,
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      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest parseFrom(
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          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
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      @java.lang.Override
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      public static Builder newBuilder(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest prototype) {
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      /**
       * 
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       * 
       *
       * Protobuf type {@code Ydb.Topic.StreamReadMessage.CommitOffsetRequest}
       */
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        @java.lang.Override
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        private void buildPartialRepeatedFields(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest result) {
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        @java.lang.Override
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            return this;
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        public Builder mergeFrom(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest other) {
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          onChanged();
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        @java.lang.Override
        public final boolean isInitialized() {
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        @java.lang.Override
        public Builder mergeFrom(
            com.google.protobuf.CodedInputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws java.io.IOException {
          if (extensionRegistry == null) {
            throw new java.lang.NullPointerException();
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            boolean done = false;
            while (!done) {
              int tag = input.readTag();
              switch (tag) {
                case 0:
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                case 10: {
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                      input.readMessage(
                          tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset.parser(),
                          extensionRegistry);
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                    commitOffsetsBuilder_.addMessage(m);
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          java.util.Collections.emptyList();
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        private com.google.protobuf.RepeatedFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset.Builder, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffsetOrBuilder> commitOffsetsBuilder_;

        /**
         * 
         * Partition offsets that indicates processed data.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset commit_offsets = 1;
         */
        public java.util.List getCommitOffsetsList() {
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          }
        }
        /**
         * 
         * Partition offsets that indicates processed data.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset commit_offsets = 1;
         */
        public int getCommitOffsetsCount() {
          if (commitOffsetsBuilder_ == null) {
            return commitOffsets_.size();
          } else {
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          }
        }
        /**
         * 
         * Partition offsets that indicates processed data.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset commit_offsets = 1;
         */
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset getCommitOffsets(int index) {
          if (commitOffsetsBuilder_ == null) {
            return commitOffsets_.get(index);
          } else {
            return commitOffsetsBuilder_.getMessage(index);
          }
        }
        /**
         * 
         * Partition offsets that indicates processed data.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset commit_offsets = 1;
         */
        public Builder setCommitOffsets(
            int index, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset value) {
          if (commitOffsetsBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            ensureCommitOffsetsIsMutable();
            commitOffsets_.set(index, value);
            onChanged();
          } else {
            commitOffsetsBuilder_.setMessage(index, value);
          }
          return this;
        }
        /**
         * 
         * Partition offsets that indicates processed data.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset commit_offsets = 1;
         */
        public Builder setCommitOffsets(
            int index, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset.Builder builderForValue) {
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            ensureCommitOffsetsIsMutable();
            commitOffsets_.set(index, builderForValue.build());
            onChanged();
          } else {
            commitOffsetsBuilder_.setMessage(index, builderForValue.build());
          }
          return this;
        }
        /**
         * 
         * Partition offsets that indicates processed data.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset commit_offsets = 1;
         */
        public Builder addCommitOffsets(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset value) {
          if (commitOffsetsBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            ensureCommitOffsetsIsMutable();
            commitOffsets_.add(value);
            onChanged();
          } else {
            commitOffsetsBuilder_.addMessage(value);
          }
          return this;
        }
        /**
         * 
         * Partition offsets that indicates processed data.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset commit_offsets = 1;
         */
        public Builder addCommitOffsets(
            int index, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset value) {
          if (commitOffsetsBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            ensureCommitOffsetsIsMutable();
            commitOffsets_.add(index, value);
            onChanged();
          } else {
            commitOffsetsBuilder_.addMessage(index, value);
          }
          return this;
        }
        /**
         * 
         * Partition offsets that indicates processed data.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset commit_offsets = 1;
         */
        public Builder addCommitOffsets(
            tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset.Builder builderForValue) {
          if (commitOffsetsBuilder_ == null) {
            ensureCommitOffsetsIsMutable();
            commitOffsets_.add(builderForValue.build());
            onChanged();
          } else {
            commitOffsetsBuilder_.addMessage(builderForValue.build());
          }
          return this;
        }
        /**
         * 
         * Partition offsets that indicates processed data.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset commit_offsets = 1;
         */
        public Builder addCommitOffsets(
            int index, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset.Builder builderForValue) {
          if (commitOffsetsBuilder_ == null) {
            ensureCommitOffsetsIsMutable();
            commitOffsets_.add(index, builderForValue.build());
            onChanged();
          } else {
            commitOffsetsBuilder_.addMessage(index, builderForValue.build());
          }
          return this;
        }
        /**
         * 
         * Partition offsets that indicates processed data.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset commit_offsets = 1;
         */
        public Builder addAllCommitOffsets(
            java.lang.Iterable values) {
          if (commitOffsetsBuilder_ == null) {
            ensureCommitOffsetsIsMutable();
            com.google.protobuf.AbstractMessageLite.Builder.addAll(
                values, commitOffsets_);
            onChanged();
          } else {
            commitOffsetsBuilder_.addAllMessages(values);
          }
          return this;
        }
        /**
         * 
         * Partition offsets that indicates processed data.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset commit_offsets = 1;
         */
        public Builder clearCommitOffsets() {
          if (commitOffsetsBuilder_ == null) {
            commitOffsets_ = java.util.Collections.emptyList();
            bitField0_ = (bitField0_ & ~0x00000001);
            onChanged();
          } else {
            commitOffsetsBuilder_.clear();
          }
          return this;
        }
        /**
         * 
         * Partition offsets that indicates processed data.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset commit_offsets = 1;
         */
        public Builder removeCommitOffsets(int index) {
          if (commitOffsetsBuilder_ == null) {
            ensureCommitOffsetsIsMutable();
            commitOffsets_.remove(index);
            onChanged();
          } else {
            commitOffsetsBuilder_.remove(index);
          }
          return this;
        }
        /**
         * 
         * Partition offsets that indicates processed data.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset commit_offsets = 1;
         */
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset.Builder getCommitOffsetsBuilder(
            int index) {
          return getCommitOffsetsFieldBuilder().getBuilder(index);
        }
        /**
         * 
         * Partition offsets that indicates processed data.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset commit_offsets = 1;
         */
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffsetOrBuilder getCommitOffsetsOrBuilder(
            int index) {
          if (commitOffsetsBuilder_ == null) {
            return commitOffsets_.get(index);  } else {
            return commitOffsetsBuilder_.getMessageOrBuilder(index);
          }
        }
        /**
         * 
         * Partition offsets that indicates processed data.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset commit_offsets = 1;
         */
        public java.util.List 
             getCommitOffsetsOrBuilderList() {
          if (commitOffsetsBuilder_ != null) {
            return commitOffsetsBuilder_.getMessageOrBuilderList();
          } else {
            return java.util.Collections.unmodifiableList(commitOffsets_);
          }
        }
        /**
         * 
         * Partition offsets that indicates processed data.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset commit_offsets = 1;
         */
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset.Builder addCommitOffsetsBuilder() {
          return getCommitOffsetsFieldBuilder().addBuilder(
              tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset.getDefaultInstance());
        }
        /**
         * 
         * Partition offsets that indicates processed data.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset commit_offsets = 1;
         */
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset.Builder addCommitOffsetsBuilder(
            int index) {
          return getCommitOffsetsFieldBuilder().addBuilder(
              index, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset.getDefaultInstance());
        }
        /**
         * 
         * Partition offsets that indicates processed data.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.CommitOffsetRequest.PartitionCommitOffset commit_offsets = 1;
         */
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             getCommitOffsetsBuilderList() {
          return getCommitOffsetsFieldBuilder().getBuilderList();
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            getCommitOffsetsFieldBuilder() {
          if (commitOffsetsBuilder_ == null) {
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                    ((bitField0_ & 0x00000001) != 0),
                    getParentForChildren(),
                    isClean());
            commitOffsets_ = null;
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        @java.lang.Override
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        // @@protoc_insertion_point(builder_scope:Ydb.Topic.StreamReadMessage.CommitOffsetRequest)
      }

      // @@protoc_insertion_point(class_scope:Ydb.Topic.StreamReadMessage.CommitOffsetRequest)
      private static final tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest DEFAULT_INSTANCE;
      static {
        DEFAULT_INSTANCE = new tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest();
      }

      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest getDefaultInstance() {
        return DEFAULT_INSTANCE;
      }

      private static final com.google.protobuf.Parser
          PARSER = new com.google.protobuf.AbstractParser() {
        @java.lang.Override
        public CommitOffsetRequest parsePartialFrom(
            com.google.protobuf.CodedInputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws com.google.protobuf.InvalidProtocolBufferException {
          Builder builder = newBuilder();
          try {
            builder.mergeFrom(input, extensionRegistry);
          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
            throw e.setUnfinishedMessage(builder.buildPartial());
          } catch (com.google.protobuf.UninitializedMessageException e) {
            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
          } catch (java.io.IOException e) {
            throw new com.google.protobuf.InvalidProtocolBufferException(e)
                .setUnfinishedMessage(builder.buildPartial());
          }
          return builder.buildPartial();
        }
      };

      public static com.google.protobuf.Parser parser() {
        return PARSER;
      }

      @java.lang.Override
      public com.google.protobuf.Parser getParserForType() {
        return PARSER;
      }

      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetRequest getDefaultInstanceForType() {
        return DEFAULT_INSTANCE;
      }

    }

    public interface CommitOffsetResponseOrBuilder extends
        // @@protoc_insertion_point(interface_extends:Ydb.Topic.StreamReadMessage.CommitOffsetResponse)
        com.google.protobuf.MessageOrBuilder {

      /**
       * 
       * Partitions with progress.
       * 
       *
       * repeated .Ydb.Topic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset partitions_committed_offsets = 1;
       */
      java.util.List 
          getPartitionsCommittedOffsetsList();
      /**
       * 
       * Partitions with progress.
       * 
       *
       * repeated .Ydb.Topic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset partitions_committed_offsets = 1;
       */
      tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset getPartitionsCommittedOffsets(int index);
      /**
       * 
       * Partitions with progress.
       * 
       *
       * repeated .Ydb.Topic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset partitions_committed_offsets = 1;
       */
      int getPartitionsCommittedOffsetsCount();
      /**
       * 
       * Partitions with progress.
       * 
       *
       * repeated .Ydb.Topic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset partitions_committed_offsets = 1;
       */
      java.util.List 
          getPartitionsCommittedOffsetsOrBuilderList();
      /**
       * 
       * Partitions with progress.
       * 
       *
       * repeated .Ydb.Topic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset partitions_committed_offsets = 1;
       */
      tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffsetOrBuilder getPartitionsCommittedOffsetsOrBuilder(
          int index);
    }
    /**
     * 
     * Acknowledgement for commits.
     * 
     *
     * Protobuf type {@code Ydb.Topic.StreamReadMessage.CommitOffsetResponse}
     */
    public static final class CommitOffsetResponse extends
        com.google.protobuf.GeneratedMessageV3 implements
        // @@protoc_insertion_point(message_implements:Ydb.Topic.StreamReadMessage.CommitOffsetResponse)
        CommitOffsetResponseOrBuilder {
    private static final long serialVersionUID = 0L;
      // Use CommitOffsetResponse.newBuilder() to construct.
      private CommitOffsetResponse(com.google.protobuf.GeneratedMessageV3.Builder builder) {
        super(builder);
      }
      private CommitOffsetResponse() {
        partitionsCommittedOffsets_ = java.util.Collections.emptyList();
      }

      @java.lang.Override
      @SuppressWarnings({"unused"})
      protected java.lang.Object newInstance(
          UnusedPrivateParameter unused) {
        return new CommitOffsetResponse();
      }

      public static final com.google.protobuf.Descriptors.Descriptor
          getDescriptor() {
        return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamReadMessage_CommitOffsetResponse_descriptor;
      }

      @java.lang.Override
      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
          internalGetFieldAccessorTable() {
        return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamReadMessage_CommitOffsetResponse_fieldAccessorTable
            .ensureFieldAccessorsInitialized(
                tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.class, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.Builder.class);
      }

      public interface PartitionCommittedOffsetOrBuilder extends
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          com.google.protobuf.MessageOrBuilder {

        /**
         * 
         * Partition session identifier.
         * 
         *
         * int64 partition_session_id = 1;
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        long getPartitionSessionId();

        /**
         * 
         * Upper bound for committed offsets.
         * 
         *
         * int64 committed_offset = 2;
         * @return The committedOffset.
         */
        long getCommittedOffset();
      }
      /**
       * 
       * Per-partition commit representation.
       * 
       *
       * Protobuf type {@code Ydb.Topic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset}
       */
      public static final class PartitionCommittedOffset extends
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         * 
         * Upper bound for committed offsets.
         * 
         *
         * int64 committed_offset = 2;
         * @return The committedOffset.
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          if (committedOffset_ != 0L) {
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        @java.lang.Override
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          if (obj == this) {
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          if (!(obj instanceof tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset)) {
            return super.equals(obj);
          }
          tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset other = (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset) obj;

          if (getPartitionSessionId()
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          if (getCommittedOffset()
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          int hash = 41;
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        public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset parseFrom(
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        public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset parseFrom(
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            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
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        public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset parseFrom(
            com.google.protobuf.ByteString data)
            throws com.google.protobuf.InvalidProtocolBufferException {
          return PARSER.parseFrom(data);
        }
        public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset parseFrom(
            com.google.protobuf.ByteString data,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws com.google.protobuf.InvalidProtocolBufferException {
          return PARSER.parseFrom(data, extensionRegistry);
        }
        public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset parseFrom(byte[] data)
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          return PARSER.parseFrom(data);
        }
        public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset parseFrom(
            byte[] data,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws com.google.protobuf.InvalidProtocolBufferException {
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        public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset parseFrom(java.io.InputStream input)
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        public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset parseFrom(
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            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
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          return com.google.protobuf.GeneratedMessageV3
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        public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset parseDelimitedFrom(java.io.InputStream input)
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          return com.google.protobuf.GeneratedMessageV3
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        public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset parseDelimitedFrom(
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        public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset parseFrom(
            com.google.protobuf.CodedInputStream input)
            throws java.io.IOException {
          return com.google.protobuf.GeneratedMessageV3
              .parseWithIOException(PARSER, input);
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        public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset parseFrom(
            com.google.protobuf.CodedInputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws java.io.IOException {
          return com.google.protobuf.GeneratedMessageV3
              .parseWithIOException(PARSER, input, extensionRegistry);
        }

        @java.lang.Override
        public Builder newBuilderForType() { return newBuilder(); }
        public static Builder newBuilder() {
          return DEFAULT_INSTANCE.toBuilder();
        }
        public static Builder newBuilder(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset prototype) {
          return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
        }
        @java.lang.Override
        public Builder toBuilder() {
          return this == DEFAULT_INSTANCE
              ? new Builder() : new Builder().mergeFrom(this);
        }

        @java.lang.Override
        protected Builder newBuilderForType(
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          Builder builder = new Builder(parent);
          return builder;
        }
        /**
         * 
         * Per-partition commit representation.
         * 
         *
         * Protobuf type {@code Ydb.Topic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset}
         */
        public static final class Builder extends
            com.google.protobuf.GeneratedMessageV3.Builder implements
            // @@protoc_insertion_point(builder_implements:Ydb.Topic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset)
            tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffsetOrBuilder {
          public static final com.google.protobuf.Descriptors.Descriptor
              getDescriptor() {
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          @java.lang.Override
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          // Construct using tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset.newBuilder()
          private Builder() {

          }

          private Builder(
              com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
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          @java.lang.Override
          public Builder clear() {
            super.clear();
            bitField0_ = 0;
            partitionSessionId_ = 0L;
            committedOffset_ = 0L;
            return this;
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          @java.lang.Override
          public com.google.protobuf.Descriptors.Descriptor
              getDescriptorForType() {
            return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamReadMessage_CommitOffsetResponse_PartitionCommittedOffset_descriptor;
          }

          @java.lang.Override
          public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset getDefaultInstanceForType() {
            return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset.getDefaultInstance();
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          public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset build() {
            tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset result = buildPartial();
            if (!result.isInitialized()) {
              throw newUninitializedMessageException(result);
            }
            return result;
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          @java.lang.Override
          public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset buildPartial() {
            tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset result = new tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset(this);
            if (bitField0_ != 0) { buildPartial0(result); }
            onBuilt();
            return result;
          }

          private void buildPartial0(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset result) {
            int from_bitField0_ = bitField0_;
            if (((from_bitField0_ & 0x00000001) != 0)) {
              result.partitionSessionId_ = partitionSessionId_;
            }
            if (((from_bitField0_ & 0x00000002) != 0)) {
              result.committedOffset_ = committedOffset_;
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          @java.lang.Override
          public Builder clone() {
            return super.clone();
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          @java.lang.Override
          public Builder setField(
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            return super.setField(field, value);
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          @java.lang.Override
          public Builder clearField(
              com.google.protobuf.Descriptors.FieldDescriptor field) {
            return super.clearField(field);
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          @java.lang.Override
          public Builder clearOneof(
              com.google.protobuf.Descriptors.OneofDescriptor oneof) {
            return super.clearOneof(oneof);
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          @java.lang.Override
          public Builder setRepeatedField(
              com.google.protobuf.Descriptors.FieldDescriptor field,
              int index, java.lang.Object value) {
            return super.setRepeatedField(field, index, value);
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          @java.lang.Override
          public Builder addRepeatedField(
              com.google.protobuf.Descriptors.FieldDescriptor field,
              java.lang.Object value) {
            return super.addRepeatedField(field, value);
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          @java.lang.Override
          public Builder mergeFrom(com.google.protobuf.Message other) {
            if (other instanceof tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset) {
              return mergeFrom((tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset)other);
            } else {
              super.mergeFrom(other);
              return this;
            }
          }

          public Builder mergeFrom(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset other) {
            if (other == tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset.getDefaultInstance()) return this;
            if (other.getPartitionSessionId() != 0L) {
              setPartitionSessionId(other.getPartitionSessionId());
            }
            if (other.getCommittedOffset() != 0L) {
              setCommittedOffset(other.getCommittedOffset());
            }
            this.mergeUnknownFields(other.getUnknownFields());
            onChanged();
            return this;
          }

          @java.lang.Override
          public final boolean isInitialized() {
            return true;
          }

          @java.lang.Override
          public Builder mergeFrom(
              com.google.protobuf.CodedInputStream input,
              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
              throws java.io.IOException {
            if (extensionRegistry == null) {
              throw new java.lang.NullPointerException();
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                switch (tag) {
                  case 0:
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                    break;
                  case 8: {
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                    bitField0_ |= 0x00000001;
                    break;
                  } // case 8
                  case 16: {
                    committedOffset_ = input.readInt64();
                    bitField0_ |= 0x00000002;
                    break;
                  } // case 16
                  default: {
                    if (!super.parseUnknownField(input, extensionRegistry, tag)) {
                      done = true; // was an endgroup tag
                    }
                    break;
                  } // default:
                } // switch (tag)
              } // while (!done)
            } catch (com.google.protobuf.InvalidProtocolBufferException e) {
              throw e.unwrapIOException();
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            return this;
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          private int bitField0_;

          private long partitionSessionId_ ;
          /**
           * 
           * Partition session identifier.
           * 
           *
           * int64 partition_session_id = 1;
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          /**
           * 
           * Partition session identifier.
           * 
           *
           * int64 partition_session_id = 1;
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           * @return This builder for chaining.
           */
          public Builder setPartitionSessionId(long value) {

            partitionSessionId_ = value;
            bitField0_ |= 0x00000001;
            onChanged();
            return this;
          }
          /**
           * 
           * Partition session identifier.
           * 
           *
           * int64 partition_session_id = 1;
           * @return This builder for chaining.
           */
          public Builder clearPartitionSessionId() {
            bitField0_ = (bitField0_ & ~0x00000001);
            partitionSessionId_ = 0L;
            onChanged();
            return this;
          }

          private long committedOffset_ ;
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           * 
           * Upper bound for committed offsets.
           * 
           *
           * int64 committed_offset = 2;
           * @return The committedOffset.
           */
          @java.lang.Override
          public long getCommittedOffset() {
            return committedOffset_;
          }
          /**
           * 
           * Upper bound for committed offsets.
           * 
           *
           * int64 committed_offset = 2;
           * @param value The committedOffset to set.
           * @return This builder for chaining.
           */
          public Builder setCommittedOffset(long value) {

            committedOffset_ = value;
            bitField0_ |= 0x00000002;
            onChanged();
            return this;
          }
          /**
           * 
           * Upper bound for committed offsets.
           * 
           *
           * int64 committed_offset = 2;
           * @return This builder for chaining.
           */
          public Builder clearCommittedOffset() {
            bitField0_ = (bitField0_ & ~0x00000002);
            committedOffset_ = 0L;
            onChanged();
            return this;
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          @java.lang.Override
          public final Builder setUnknownFields(
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            return super.setUnknownFields(unknownFields);
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          @java.lang.Override
          public final Builder mergeUnknownFields(
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            return super.mergeUnknownFields(unknownFields);
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          // @@protoc_insertion_point(builder_scope:Ydb.Topic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset)
        }

        // @@protoc_insertion_point(class_scope:Ydb.Topic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset)
        private static final tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset DEFAULT_INSTANCE;
        static {
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        public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset getDefaultInstance() {
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        }

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          public PartitionCommittedOffset parsePartialFrom(
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              throws com.google.protobuf.InvalidProtocolBufferException {
            Builder builder = newBuilder();
            try {
              builder.mergeFrom(input, extensionRegistry);
            } catch (com.google.protobuf.InvalidProtocolBufferException e) {
              throw e.setUnfinishedMessage(builder.buildPartial());
            } catch (com.google.protobuf.UninitializedMessageException e) {
              throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
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              throw new com.google.protobuf.InvalidProtocolBufferException(e)
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        public static com.google.protobuf.Parser parser() {
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        @java.lang.Override
        public com.google.protobuf.Parser getParserForType() {
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        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset getDefaultInstanceForType() {
          return DEFAULT_INSTANCE;
        }

      }

      public static final int PARTITIONS_COMMITTED_OFFSETS_FIELD_NUMBER = 1;
      @SuppressWarnings("serial")
      private java.util.List partitionsCommittedOffsets_;
      /**
       * 
       * Partitions with progress.
       * 
       *
       * repeated .Ydb.Topic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset partitions_committed_offsets = 1;
       */
      @java.lang.Override
      public java.util.List getPartitionsCommittedOffsetsList() {
        return partitionsCommittedOffsets_;
      }
      /**
       * 
       * Partitions with progress.
       * 
       *
       * repeated .Ydb.Topic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset partitions_committed_offsets = 1;
       */
      @java.lang.Override
      public java.util.List 
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        return partitionsCommittedOffsets_;
      }
      /**
       * 
       * Partitions with progress.
       * 
       *
       * repeated .Ydb.Topic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset partitions_committed_offsets = 1;
       */
      @java.lang.Override
      public int getPartitionsCommittedOffsetsCount() {
        return partitionsCommittedOffsets_.size();
      }
      /**
       * 
       * Partitions with progress.
       * 
       *
       * repeated .Ydb.Topic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset partitions_committed_offsets = 1;
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset getPartitionsCommittedOffsets(int index) {
        return partitionsCommittedOffsets_.get(index);
      }
      /**
       * 
       * Partitions with progress.
       * 
       *
       * repeated .Ydb.Topic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset partitions_committed_offsets = 1;
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffsetOrBuilder getPartitionsCommittedOffsetsOrBuilder(
          int index) {
        return partitionsCommittedOffsets_.get(index);
      }

      private byte memoizedIsInitialized = -1;
      @java.lang.Override
      public final boolean isInitialized() {
        byte isInitialized = memoizedIsInitialized;
        if (isInitialized == 1) return true;
        if (isInitialized == 0) return false;

        memoizedIsInitialized = 1;
        return true;
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      @java.lang.Override
      public void writeTo(com.google.protobuf.CodedOutputStream output)
                          throws java.io.IOException {
        for (int i = 0; i < partitionsCommittedOffsets_.size(); i++) {
          output.writeMessage(1, partitionsCommittedOffsets_.get(i));
        }
        getUnknownFields().writeTo(output);
      }

      @java.lang.Override
      public int getSerializedSize() {
        int size = memoizedSize;
        if (size != -1) return size;

        size = 0;
        for (int i = 0; i < partitionsCommittedOffsets_.size(); i++) {
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        size += getUnknownFields().getSerializedSize();
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      }

      @java.lang.Override
      public boolean equals(final java.lang.Object obj) {
        if (obj == this) {
         return true;
        }
        if (!(obj instanceof tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse)) {
          return super.equals(obj);
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        tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse other = (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse) obj;

        if (!getPartitionsCommittedOffsetsList()
            .equals(other.getPartitionsCommittedOffsetsList())) return false;
        if (!getUnknownFields().equals(other.getUnknownFields())) return false;
        return true;
      }

      @java.lang.Override
      public int hashCode() {
        if (memoizedHashCode != 0) {
          return memoizedHashCode;
        }
        int hash = 41;
        hash = (19 * hash) + getDescriptor().hashCode();
        if (getPartitionsCommittedOffsetsCount() > 0) {
          hash = (37 * hash) + PARTITIONS_COMMITTED_OFFSETS_FIELD_NUMBER;
          hash = (53 * hash) + getPartitionsCommittedOffsetsList().hashCode();
        }
        hash = (29 * hash) + getUnknownFields().hashCode();
        memoizedHashCode = hash;
        return hash;
      }

      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse parseFrom(
          java.nio.ByteBuffer data)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse parseFrom(
          java.nio.ByteBuffer data,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data, extensionRegistry);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse parseFrom(
          com.google.protobuf.ByteString data)
          throws com.google.protobuf.InvalidProtocolBufferException {
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      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse parseFrom(
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      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse parseFrom(
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          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
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      @java.lang.Override
      public Builder newBuilderForType() { return newBuilder(); }
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      public static Builder newBuilder(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse prototype) {
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      @java.lang.Override
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      /**
       * 
       * Acknowledgement for commits.
       * 
       *
       * Protobuf type {@code Ydb.Topic.StreamReadMessage.CommitOffsetResponse}
       */
      public static final class Builder extends
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          if (!result.isInitialized()) {
            throw newUninitializedMessageException(result);
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        @java.lang.Override
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          buildPartialRepeatedFields(result);
          if (bitField0_ != 0) { buildPartial0(result); }
          onBuilt();
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        private void buildPartialRepeatedFields(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse result) {
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        public Builder setRepeatedField(
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        public Builder addRepeatedField(
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        public Builder mergeFrom(com.google.protobuf.Message other) {
          if (other instanceof tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse) {
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          } else {
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            return this;
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        public Builder mergeFrom(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse other) {
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                partitionsCommittedOffsetsBuilder_.addAllMessages(other.partitionsCommittedOffsets_);
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          }
          this.mergeUnknownFields(other.getUnknownFields());
          onChanged();
          return this;
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        @java.lang.Override
        public final boolean isInitialized() {
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        @java.lang.Override
        public Builder mergeFrom(
            com.google.protobuf.CodedInputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws java.io.IOException {
          if (extensionRegistry == null) {
            throw new java.lang.NullPointerException();
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            while (!done) {
              int tag = input.readTag();
              switch (tag) {
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                          tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset.parser(),
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        private com.google.protobuf.RepeatedFieldBuilderV3<
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        /**
         * 
         * Partitions with progress.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset partitions_committed_offsets = 1;
         */
        public java.util.List getPartitionsCommittedOffsetsList() {
          if (partitionsCommittedOffsetsBuilder_ == null) {
            return java.util.Collections.unmodifiableList(partitionsCommittedOffsets_);
          } else {
            return partitionsCommittedOffsetsBuilder_.getMessageList();
          }
        }
        /**
         * 
         * Partitions with progress.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset partitions_committed_offsets = 1;
         */
        public int getPartitionsCommittedOffsetsCount() {
          if (partitionsCommittedOffsetsBuilder_ == null) {
            return partitionsCommittedOffsets_.size();
          } else {
            return partitionsCommittedOffsetsBuilder_.getCount();
          }
        }
        /**
         * 
         * Partitions with progress.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset partitions_committed_offsets = 1;
         */
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset getPartitionsCommittedOffsets(int index) {
          if (partitionsCommittedOffsetsBuilder_ == null) {
            return partitionsCommittedOffsets_.get(index);
          } else {
            return partitionsCommittedOffsetsBuilder_.getMessage(index);
          }
        }
        /**
         * 
         * Partitions with progress.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset partitions_committed_offsets = 1;
         */
        public Builder setPartitionsCommittedOffsets(
            int index, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset value) {
          if (partitionsCommittedOffsetsBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            ensurePartitionsCommittedOffsetsIsMutable();
            partitionsCommittedOffsets_.set(index, value);
            onChanged();
          } else {
            partitionsCommittedOffsetsBuilder_.setMessage(index, value);
          }
          return this;
        }
        /**
         * 
         * Partitions with progress.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset partitions_committed_offsets = 1;
         */
        public Builder setPartitionsCommittedOffsets(
            int index, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset.Builder builderForValue) {
          if (partitionsCommittedOffsetsBuilder_ == null) {
            ensurePartitionsCommittedOffsetsIsMutable();
            partitionsCommittedOffsets_.set(index, builderForValue.build());
            onChanged();
          } else {
            partitionsCommittedOffsetsBuilder_.setMessage(index, builderForValue.build());
          }
          return this;
        }
        /**
         * 
         * Partitions with progress.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset partitions_committed_offsets = 1;
         */
        public Builder addPartitionsCommittedOffsets(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset value) {
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            if (value == null) {
              throw new NullPointerException();
            }
            ensurePartitionsCommittedOffsetsIsMutable();
            partitionsCommittedOffsets_.add(value);
            onChanged();
          } else {
            partitionsCommittedOffsetsBuilder_.addMessage(value);
          }
          return this;
        }
        /**
         * 
         * Partitions with progress.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset partitions_committed_offsets = 1;
         */
        public Builder addPartitionsCommittedOffsets(
            int index, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset value) {
          if (partitionsCommittedOffsetsBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            ensurePartitionsCommittedOffsetsIsMutable();
            partitionsCommittedOffsets_.add(index, value);
            onChanged();
          } else {
            partitionsCommittedOffsetsBuilder_.addMessage(index, value);
          }
          return this;
        }
        /**
         * 
         * Partitions with progress.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset partitions_committed_offsets = 1;
         */
        public Builder addPartitionsCommittedOffsets(
            tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset.Builder builderForValue) {
          if (partitionsCommittedOffsetsBuilder_ == null) {
            ensurePartitionsCommittedOffsetsIsMutable();
            partitionsCommittedOffsets_.add(builderForValue.build());
            onChanged();
          } else {
            partitionsCommittedOffsetsBuilder_.addMessage(builderForValue.build());
          }
          return this;
        }
        /**
         * 
         * Partitions with progress.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset partitions_committed_offsets = 1;
         */
        public Builder addPartitionsCommittedOffsets(
            int index, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset.Builder builderForValue) {
          if (partitionsCommittedOffsetsBuilder_ == null) {
            ensurePartitionsCommittedOffsetsIsMutable();
            partitionsCommittedOffsets_.add(index, builderForValue.build());
            onChanged();
          } else {
            partitionsCommittedOffsetsBuilder_.addMessage(index, builderForValue.build());
          }
          return this;
        }
        /**
         * 
         * Partitions with progress.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset partitions_committed_offsets = 1;
         */
        public Builder addAllPartitionsCommittedOffsets(
            java.lang.Iterable values) {
          if (partitionsCommittedOffsetsBuilder_ == null) {
            ensurePartitionsCommittedOffsetsIsMutable();
            com.google.protobuf.AbstractMessageLite.Builder.addAll(
                values, partitionsCommittedOffsets_);
            onChanged();
          } else {
            partitionsCommittedOffsetsBuilder_.addAllMessages(values);
          }
          return this;
        }
        /**
         * 
         * Partitions with progress.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset partitions_committed_offsets = 1;
         */
        public Builder clearPartitionsCommittedOffsets() {
          if (partitionsCommittedOffsetsBuilder_ == null) {
            partitionsCommittedOffsets_ = java.util.Collections.emptyList();
            bitField0_ = (bitField0_ & ~0x00000001);
            onChanged();
          } else {
            partitionsCommittedOffsetsBuilder_.clear();
          }
          return this;
        }
        /**
         * 
         * Partitions with progress.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset partitions_committed_offsets = 1;
         */
        public Builder removePartitionsCommittedOffsets(int index) {
          if (partitionsCommittedOffsetsBuilder_ == null) {
            ensurePartitionsCommittedOffsetsIsMutable();
            partitionsCommittedOffsets_.remove(index);
            onChanged();
          } else {
            partitionsCommittedOffsetsBuilder_.remove(index);
          }
          return this;
        }
        /**
         * 
         * Partitions with progress.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset partitions_committed_offsets = 1;
         */
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset.Builder getPartitionsCommittedOffsetsBuilder(
            int index) {
          return getPartitionsCommittedOffsetsFieldBuilder().getBuilder(index);
        }
        /**
         * 
         * Partitions with progress.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset partitions_committed_offsets = 1;
         */
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffsetOrBuilder getPartitionsCommittedOffsetsOrBuilder(
            int index) {
          if (partitionsCommittedOffsetsBuilder_ == null) {
            return partitionsCommittedOffsets_.get(index);  } else {
            return partitionsCommittedOffsetsBuilder_.getMessageOrBuilder(index);
          }
        }
        /**
         * 
         * Partitions with progress.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset partitions_committed_offsets = 1;
         */
        public java.util.List 
             getPartitionsCommittedOffsetsOrBuilderList() {
          if (partitionsCommittedOffsetsBuilder_ != null) {
            return partitionsCommittedOffsetsBuilder_.getMessageOrBuilderList();
          } else {
            return java.util.Collections.unmodifiableList(partitionsCommittedOffsets_);
          }
        }
        /**
         * 
         * Partitions with progress.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset partitions_committed_offsets = 1;
         */
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset.Builder addPartitionsCommittedOffsetsBuilder() {
          return getPartitionsCommittedOffsetsFieldBuilder().addBuilder(
              tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset.getDefaultInstance());
        }
        /**
         * 
         * Partitions with progress.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset partitions_committed_offsets = 1;
         */
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset.Builder addPartitionsCommittedOffsetsBuilder(
            int index) {
          return getPartitionsCommittedOffsetsFieldBuilder().addBuilder(
              index, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset.getDefaultInstance());
        }
        /**
         * 
         * Partitions with progress.
         * 
         *
         * repeated .Ydb.Topic.StreamReadMessage.CommitOffsetResponse.PartitionCommittedOffset partitions_committed_offsets = 1;
         */
        public java.util.List 
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                    ((bitField0_ & 0x00000001) != 0),
                    getParentForChildren(),
                    isClean());
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        public final Builder setUnknownFields(
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        @java.lang.Override
        public final Builder mergeUnknownFields(
            final com.google.protobuf.UnknownFieldSet unknownFields) {
          return super.mergeUnknownFields(unknownFields);
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        // @@protoc_insertion_point(builder_scope:Ydb.Topic.StreamReadMessage.CommitOffsetResponse)
      }

      // @@protoc_insertion_point(class_scope:Ydb.Topic.StreamReadMessage.CommitOffsetResponse)
      private static final tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse DEFAULT_INSTANCE;
      static {
        DEFAULT_INSTANCE = new tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse();
      }

      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse getDefaultInstance() {
        return DEFAULT_INSTANCE;
      }

      private static final com.google.protobuf.Parser
          PARSER = new com.google.protobuf.AbstractParser() {
        @java.lang.Override
        public CommitOffsetResponse parsePartialFrom(
            com.google.protobuf.CodedInputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws com.google.protobuf.InvalidProtocolBufferException {
          Builder builder = newBuilder();
          try {
            builder.mergeFrom(input, extensionRegistry);
          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
            throw e.setUnfinishedMessage(builder.buildPartial());
          } catch (com.google.protobuf.UninitializedMessageException e) {
            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
          } catch (java.io.IOException e) {
            throw new com.google.protobuf.InvalidProtocolBufferException(e)
                .setUnfinishedMessage(builder.buildPartial());
          }
          return builder.buildPartial();
        }
      };

      public static com.google.protobuf.Parser parser() {
        return PARSER;
      }

      @java.lang.Override
      public com.google.protobuf.Parser getParserForType() {
        return PARSER;
      }

      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.CommitOffsetResponse getDefaultInstanceForType() {
        return DEFAULT_INSTANCE;
      }

    }

    public interface PartitionSessionStatusRequestOrBuilder extends
        // @@protoc_insertion_point(interface_extends:Ydb.Topic.StreamReadMessage.PartitionSessionStatusRequest)
        com.google.protobuf.MessageOrBuilder {

      /**
       * int64 partition_session_id = 1;
       * @return The partitionSessionId.
       */
      long getPartitionSessionId();
    }
    /**
     * Protobuf type {@code Ydb.Topic.StreamReadMessage.PartitionSessionStatusRequest}
     */
    public static final class PartitionSessionStatusRequest extends
        com.google.protobuf.GeneratedMessageV3 implements
        // @@protoc_insertion_point(message_implements:Ydb.Topic.StreamReadMessage.PartitionSessionStatusRequest)
        PartitionSessionStatusRequestOrBuilder {
    private static final long serialVersionUID = 0L;
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      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusRequest getDefaultInstance() {
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    public interface PartitionSessionStatusResponseOrBuilder extends
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      /**
       * 
       * Identifier of partition session whose status was requested.
       * 
       *
       * int64 partition_session_id = 1;
       * @return The partitionSessionId.
       */
      long getPartitionSessionId();

      /**
       * 
       * Partition contains messages with offsets in range [start, end).
       * 
       *
       * .Ydb.Topic.OffsetsRange partition_offsets = 2;
       * @return Whether the partitionOffsets field is set.
       */
      boolean hasPartitionOffsets();
      /**
       * 
       * Partition contains messages with offsets in range [start, end).
       * 
       *
       * .Ydb.Topic.OffsetsRange partition_offsets = 2;
       * @return The partitionOffsets.
       */
      tech.ydb.proto.topic.YdbTopic.OffsetsRange getPartitionOffsets();
      /**
       * 
       * Partition contains messages with offsets in range [start, end).
       * 
       *
       * .Ydb.Topic.OffsetsRange partition_offsets = 2;
       */
      tech.ydb.proto.topic.YdbTopic.OffsetsRangeOrBuilder getPartitionOffsetsOrBuilder();

      /**
       * 
       * Each offset up to and including (committed_offset - 1) was fully processed.
       * 
       *
       * int64 committed_offset = 3;
       * @return The committedOffset.
       */
      long getCommittedOffset();

      /**
       * 
       * Write timestamp of next message written to this partition will be no less than write_time_high_watermark.
       * 
       *
       * .google.protobuf.Timestamp write_time_high_watermark = 4;
       * @return Whether the writeTimeHighWatermark field is set.
       */
      boolean hasWriteTimeHighWatermark();
      /**
       * 
       * Write timestamp of next message written to this partition will be no less than write_time_high_watermark.
       * 
       *
       * .google.protobuf.Timestamp write_time_high_watermark = 4;
       * @return The writeTimeHighWatermark.
       */
      com.google.protobuf.Timestamp getWriteTimeHighWatermark();
      /**
       * 
       * Write timestamp of next message written to this partition will be no less than write_time_high_watermark.
       * 
       *
       * .google.protobuf.Timestamp write_time_high_watermark = 4;
       */
      com.google.protobuf.TimestampOrBuilder getWriteTimeHighWatermarkOrBuilder();
    }
    /**
     * 
     * Response to status request.
     * 
     *
     * Protobuf type {@code Ydb.Topic.StreamReadMessage.PartitionSessionStatusResponse}
     */
    public static final class PartitionSessionStatusResponse extends
        com.google.protobuf.GeneratedMessageV3 implements
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    private static final long serialVersionUID = 0L;
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      private PartitionSessionStatusResponse(com.google.protobuf.GeneratedMessageV3.Builder builder) {
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      public static final com.google.protobuf.Descriptors.Descriptor
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       * 
       * Identifier of partition session whose status was requested.
       * 
       *
       * int64 partition_session_id = 1;
       * @return The partitionSessionId.
       */
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      public static final int PARTITION_OFFSETS_FIELD_NUMBER = 2;
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      /**
       * 
       * Partition contains messages with offsets in range [start, end).
       * 
       *
       * .Ydb.Topic.OffsetsRange partition_offsets = 2;
       * @return Whether the partitionOffsets field is set.
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       * 
       * Partition contains messages with offsets in range [start, end).
       * 
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       */
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      /**
       * 
       * Partition contains messages with offsets in range [start, end).
       * 
       *
       * .Ydb.Topic.OffsetsRange partition_offsets = 2;
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      public static final int COMMITTED_OFFSET_FIELD_NUMBER = 3;
      private long committedOffset_ = 0L;
      /**
       * 
       * Each offset up to and including (committed_offset - 1) was fully processed.
       * 
       *
       * int64 committed_offset = 3;
       * @return The committedOffset.
       */
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      public long getCommittedOffset() {
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      /**
       * 
       * Write timestamp of next message written to this partition will be no less than write_time_high_watermark.
       * 
       *
       * .google.protobuf.Timestamp write_time_high_watermark = 4;
       * @return Whether the writeTimeHighWatermark field is set.
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      }
      /**
       * 
       * Write timestamp of next message written to this partition will be no less than write_time_high_watermark.
       * 
       *
       * .google.protobuf.Timestamp write_time_high_watermark = 4;
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       * 
       * Write timestamp of next message written to this partition will be no less than write_time_high_watermark.
       * 
       *
       * .google.protobuf.Timestamp write_time_high_watermark = 4;
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        if (getPartitionSessionId()
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        if (hasPartitionOffsets() != other.hasPartitionOffsets()) return false;
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        if (getCommittedOffset()
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        if (hasWriteTimeHighWatermark() != other.hasWriteTimeHighWatermark()) return false;
        if (hasWriteTimeHighWatermark()) {
          if (!getWriteTimeHighWatermark()
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        int hash = 41;
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      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusResponse parseFrom(
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      @java.lang.Override
      public Builder newBuilderForType() { return newBuilder(); }
      public static Builder newBuilder() {
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      }
      public static Builder newBuilder(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusResponse prototype) {
        return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
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      @java.lang.Override
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            ? new Builder() : new Builder().mergeFrom(this);
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      protected Builder newBuilderForType(
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      /**
       * 
       * Response to status request.
       * 
       *
       * Protobuf type {@code Ydb.Topic.StreamReadMessage.PartitionSessionStatusResponse}
       */
      public static final class Builder extends
          com.google.protobuf.GeneratedMessageV3.Builder implements
          // @@protoc_insertion_point(builder_implements:Ydb.Topic.StreamReadMessage.PartitionSessionStatusResponse)
          tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusResponseOrBuilder {
        public static final com.google.protobuf.Descriptors.Descriptor
            getDescriptor() {
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        @java.lang.Override
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          partitionSessionId_ = 0L;
          partitionOffsets_ = null;
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            partitionOffsetsBuilder_ = null;
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          tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusResponse result = buildPartial();
          if (!result.isInitialized()) {
            throw newUninitializedMessageException(result);
          }
          return result;
        }

        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusResponse buildPartial() {
          tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusResponse result = new tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusResponse(this);
          if (bitField0_ != 0) { buildPartial0(result); }
          onBuilt();
          return result;
        }

        private void buildPartial0(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusResponse result) {
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                : partitionOffsetsBuilder_.build();
            to_bitField0_ |= 0x00000001;
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          if (((from_bitField0_ & 0x00000004) != 0)) {
            result.committedOffset_ = committedOffset_;
          }
          if (((from_bitField0_ & 0x00000008) != 0)) {
            result.writeTimeHighWatermark_ = writeTimeHighWatermarkBuilder_ == null
                ? writeTimeHighWatermark_
                : writeTimeHighWatermarkBuilder_.build();
            to_bitField0_ |= 0x00000002;
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          result.bitField0_ |= to_bitField0_;
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        public Builder clearOneof(
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          return super.clearOneof(oneof);
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        @java.lang.Override
        public Builder setRepeatedField(
            com.google.protobuf.Descriptors.FieldDescriptor field,
            int index, java.lang.Object value) {
          return super.setRepeatedField(field, index, value);
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        @java.lang.Override
        public Builder addRepeatedField(
            com.google.protobuf.Descriptors.FieldDescriptor field,
            java.lang.Object value) {
          return super.addRepeatedField(field, value);
        }
        @java.lang.Override
        public Builder mergeFrom(com.google.protobuf.Message other) {
          if (other instanceof tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusResponse) {
            return mergeFrom((tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusResponse)other);
          } else {
            super.mergeFrom(other);
            return this;
          }
        }

        public Builder mergeFrom(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusResponse other) {
          if (other == tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusResponse.getDefaultInstance()) return this;
          if (other.getPartitionSessionId() != 0L) {
            setPartitionSessionId(other.getPartitionSessionId());
          }
          if (other.hasPartitionOffsets()) {
            mergePartitionOffsets(other.getPartitionOffsets());
          }
          if (other.getCommittedOffset() != 0L) {
            setCommittedOffset(other.getCommittedOffset());
          }
          if (other.hasWriteTimeHighWatermark()) {
            mergeWriteTimeHighWatermark(other.getWriteTimeHighWatermark());
          }
          this.mergeUnknownFields(other.getUnknownFields());
          onChanged();
          return this;
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        @java.lang.Override
        public final boolean isInitialized() {
          return true;
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        @java.lang.Override
        public Builder mergeFrom(
            com.google.protobuf.CodedInputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws java.io.IOException {
          if (extensionRegistry == null) {
            throw new java.lang.NullPointerException();
          }
          try {
            boolean done = false;
            while (!done) {
              int tag = input.readTag();
              switch (tag) {
                case 0:
                  done = true;
                  break;
                case 8: {
                  partitionSessionId_ = input.readInt64();
                  bitField0_ |= 0x00000001;
                  break;
                } // case 8
                case 18: {
                  input.readMessage(
                      getPartitionOffsetsFieldBuilder().getBuilder(),
                      extensionRegistry);
                  bitField0_ |= 0x00000002;
                  break;
                } // case 18
                case 24: {
                  committedOffset_ = input.readInt64();
                  bitField0_ |= 0x00000004;
                  break;
                } // case 24
                case 34: {
                  input.readMessage(
                      getWriteTimeHighWatermarkFieldBuilder().getBuilder(),
                      extensionRegistry);
                  bitField0_ |= 0x00000008;
                  break;
                } // case 34
                default: {
                  if (!super.parseUnknownField(input, extensionRegistry, tag)) {
                    done = true; // was an endgroup tag
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                } // default:
              } // switch (tag)
            } // while (!done)
          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
            throw e.unwrapIOException();
          } finally {
            onChanged();
          } // finally
          return this;
        }
        private int bitField0_;

        private long partitionSessionId_ ;
        /**
         * 
         * Identifier of partition session whose status was requested.
         * 
         *
         * int64 partition_session_id = 1;
         * @return The partitionSessionId.
         */
        @java.lang.Override
        public long getPartitionSessionId() {
          return partitionSessionId_;
        }
        /**
         * 
         * Identifier of partition session whose status was requested.
         * 
         *
         * int64 partition_session_id = 1;
         * @param value The partitionSessionId to set.
         * @return This builder for chaining.
         */
        public Builder setPartitionSessionId(long value) {

          partitionSessionId_ = value;
          bitField0_ |= 0x00000001;
          onChanged();
          return this;
        }
        /**
         * 
         * Identifier of partition session whose status was requested.
         * 
         *
         * int64 partition_session_id = 1;
         * @return This builder for chaining.
         */
        public Builder clearPartitionSessionId() {
          bitField0_ = (bitField0_ & ~0x00000001);
          partitionSessionId_ = 0L;
          onChanged();
          return this;
        }

        private tech.ydb.proto.topic.YdbTopic.OffsetsRange partitionOffsets_;
        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.OffsetsRange, tech.ydb.proto.topic.YdbTopic.OffsetsRange.Builder, tech.ydb.proto.topic.YdbTopic.OffsetsRangeOrBuilder> partitionOffsetsBuilder_;
        /**
         * 
         * Partition contains messages with offsets in range [start, end).
         * 
         *
         * .Ydb.Topic.OffsetsRange partition_offsets = 2;
         * @return Whether the partitionOffsets field is set.
         */
        public boolean hasPartitionOffsets() {
          return ((bitField0_ & 0x00000002) != 0);
        }
        /**
         * 
         * Partition contains messages with offsets in range [start, end).
         * 
         *
         * .Ydb.Topic.OffsetsRange partition_offsets = 2;
         * @return The partitionOffsets.
         */
        public tech.ydb.proto.topic.YdbTopic.OffsetsRange getPartitionOffsets() {
          if (partitionOffsetsBuilder_ == null) {
            return partitionOffsets_ == null ? tech.ydb.proto.topic.YdbTopic.OffsetsRange.getDefaultInstance() : partitionOffsets_;
          } else {
            return partitionOffsetsBuilder_.getMessage();
          }
        }
        /**
         * 
         * Partition contains messages with offsets in range [start, end).
         * 
         *
         * .Ydb.Topic.OffsetsRange partition_offsets = 2;
         */
        public Builder setPartitionOffsets(tech.ydb.proto.topic.YdbTopic.OffsetsRange value) {
          if (partitionOffsetsBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            partitionOffsets_ = value;
          } else {
            partitionOffsetsBuilder_.setMessage(value);
          }
          bitField0_ |= 0x00000002;
          onChanged();
          return this;
        }
        /**
         * 
         * Partition contains messages with offsets in range [start, end).
         * 
         *
         * .Ydb.Topic.OffsetsRange partition_offsets = 2;
         */
        public Builder setPartitionOffsets(
            tech.ydb.proto.topic.YdbTopic.OffsetsRange.Builder builderForValue) {
          if (partitionOffsetsBuilder_ == null) {
            partitionOffsets_ = builderForValue.build();
          } else {
            partitionOffsetsBuilder_.setMessage(builderForValue.build());
          }
          bitField0_ |= 0x00000002;
          onChanged();
          return this;
        }
        /**
         * 
         * Partition contains messages with offsets in range [start, end).
         * 
         *
         * .Ydb.Topic.OffsetsRange partition_offsets = 2;
         */
        public Builder mergePartitionOffsets(tech.ydb.proto.topic.YdbTopic.OffsetsRange value) {
          if (partitionOffsetsBuilder_ == null) {
            if (((bitField0_ & 0x00000002) != 0) &&
              partitionOffsets_ != null &&
              partitionOffsets_ != tech.ydb.proto.topic.YdbTopic.OffsetsRange.getDefaultInstance()) {
              getPartitionOffsetsBuilder().mergeFrom(value);
            } else {
              partitionOffsets_ = value;
            }
          } else {
            partitionOffsetsBuilder_.mergeFrom(value);
          }
          if (partitionOffsets_ != null) {
            bitField0_ |= 0x00000002;
            onChanged();
          }
          return this;
        }
        /**
         * 
         * Partition contains messages with offsets in range [start, end).
         * 
         *
         * .Ydb.Topic.OffsetsRange partition_offsets = 2;
         */
        public Builder clearPartitionOffsets() {
          bitField0_ = (bitField0_ & ~0x00000002);
          partitionOffsets_ = null;
          if (partitionOffsetsBuilder_ != null) {
            partitionOffsetsBuilder_.dispose();
            partitionOffsetsBuilder_ = null;
          }
          onChanged();
          return this;
        }
        /**
         * 
         * Partition contains messages with offsets in range [start, end).
         * 
         *
         * .Ydb.Topic.OffsetsRange partition_offsets = 2;
         */
        public tech.ydb.proto.topic.YdbTopic.OffsetsRange.Builder getPartitionOffsetsBuilder() {
          bitField0_ |= 0x00000002;
          onChanged();
          return getPartitionOffsetsFieldBuilder().getBuilder();
        }
        /**
         * 
         * Partition contains messages with offsets in range [start, end).
         * 
         *
         * .Ydb.Topic.OffsetsRange partition_offsets = 2;
         */
        public tech.ydb.proto.topic.YdbTopic.OffsetsRangeOrBuilder getPartitionOffsetsOrBuilder() {
          if (partitionOffsetsBuilder_ != null) {
            return partitionOffsetsBuilder_.getMessageOrBuilder();
          } else {
            return partitionOffsets_ == null ?
                tech.ydb.proto.topic.YdbTopic.OffsetsRange.getDefaultInstance() : partitionOffsets_;
          }
        }
        /**
         * 
         * Partition contains messages with offsets in range [start, end).
         * 
         *
         * .Ydb.Topic.OffsetsRange partition_offsets = 2;
         */
        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.OffsetsRange, tech.ydb.proto.topic.YdbTopic.OffsetsRange.Builder, tech.ydb.proto.topic.YdbTopic.OffsetsRangeOrBuilder> 
            getPartitionOffsetsFieldBuilder() {
          if (partitionOffsetsBuilder_ == null) {
            partitionOffsetsBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
                tech.ydb.proto.topic.YdbTopic.OffsetsRange, tech.ydb.proto.topic.YdbTopic.OffsetsRange.Builder, tech.ydb.proto.topic.YdbTopic.OffsetsRangeOrBuilder>(
                    getPartitionOffsets(),
                    getParentForChildren(),
                    isClean());
            partitionOffsets_ = null;
          }
          return partitionOffsetsBuilder_;
        }

        private long committedOffset_ ;
        /**
         * 
         * Each offset up to and including (committed_offset - 1) was fully processed.
         * 
         *
         * int64 committed_offset = 3;
         * @return The committedOffset.
         */
        @java.lang.Override
        public long getCommittedOffset() {
          return committedOffset_;
        }
        /**
         * 
         * Each offset up to and including (committed_offset - 1) was fully processed.
         * 
         *
         * int64 committed_offset = 3;
         * @param value The committedOffset to set.
         * @return This builder for chaining.
         */
        public Builder setCommittedOffset(long value) {

          committedOffset_ = value;
          bitField0_ |= 0x00000004;
          onChanged();
          return this;
        }
        /**
         * 
         * Each offset up to and including (committed_offset - 1) was fully processed.
         * 
         *
         * int64 committed_offset = 3;
         * @return This builder for chaining.
         */
        public Builder clearCommittedOffset() {
          bitField0_ = (bitField0_ & ~0x00000004);
          committedOffset_ = 0L;
          onChanged();
          return this;
        }

        private com.google.protobuf.Timestamp writeTimeHighWatermark_;
        private com.google.protobuf.SingleFieldBuilderV3<
            com.google.protobuf.Timestamp, com.google.protobuf.Timestamp.Builder, com.google.protobuf.TimestampOrBuilder> writeTimeHighWatermarkBuilder_;
        /**
         * 
         * Write timestamp of next message written to this partition will be no less than write_time_high_watermark.
         * 
         *
         * .google.protobuf.Timestamp write_time_high_watermark = 4;
         * @return Whether the writeTimeHighWatermark field is set.
         */
        public boolean hasWriteTimeHighWatermark() {
          return ((bitField0_ & 0x00000008) != 0);
        }
        /**
         * 
         * Write timestamp of next message written to this partition will be no less than write_time_high_watermark.
         * 
         *
         * .google.protobuf.Timestamp write_time_high_watermark = 4;
         * @return The writeTimeHighWatermark.
         */
        public com.google.protobuf.Timestamp getWriteTimeHighWatermark() {
          if (writeTimeHighWatermarkBuilder_ == null) {
            return writeTimeHighWatermark_ == null ? com.google.protobuf.Timestamp.getDefaultInstance() : writeTimeHighWatermark_;
          } else {
            return writeTimeHighWatermarkBuilder_.getMessage();
          }
        }
        /**
         * 
         * Write timestamp of next message written to this partition will be no less than write_time_high_watermark.
         * 
         *
         * .google.protobuf.Timestamp write_time_high_watermark = 4;
         */
        public Builder setWriteTimeHighWatermark(com.google.protobuf.Timestamp value) {
          if (writeTimeHighWatermarkBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            writeTimeHighWatermark_ = value;
          } else {
            writeTimeHighWatermarkBuilder_.setMessage(value);
          }
          bitField0_ |= 0x00000008;
          onChanged();
          return this;
        }
        /**
         * 
         * Write timestamp of next message written to this partition will be no less than write_time_high_watermark.
         * 
         *
         * .google.protobuf.Timestamp write_time_high_watermark = 4;
         */
        public Builder setWriteTimeHighWatermark(
            com.google.protobuf.Timestamp.Builder builderForValue) {
          if (writeTimeHighWatermarkBuilder_ == null) {
            writeTimeHighWatermark_ = builderForValue.build();
          } else {
            writeTimeHighWatermarkBuilder_.setMessage(builderForValue.build());
          }
          bitField0_ |= 0x00000008;
          onChanged();
          return this;
        }
        /**
         * 
         * Write timestamp of next message written to this partition will be no less than write_time_high_watermark.
         * 
         *
         * .google.protobuf.Timestamp write_time_high_watermark = 4;
         */
        public Builder mergeWriteTimeHighWatermark(com.google.protobuf.Timestamp value) {
          if (writeTimeHighWatermarkBuilder_ == null) {
            if (((bitField0_ & 0x00000008) != 0) &&
              writeTimeHighWatermark_ != null &&
              writeTimeHighWatermark_ != com.google.protobuf.Timestamp.getDefaultInstance()) {
              getWriteTimeHighWatermarkBuilder().mergeFrom(value);
            } else {
              writeTimeHighWatermark_ = value;
            }
          } else {
            writeTimeHighWatermarkBuilder_.mergeFrom(value);
          }
          if (writeTimeHighWatermark_ != null) {
            bitField0_ |= 0x00000008;
            onChanged();
          }
          return this;
        }
        /**
         * 
         * Write timestamp of next message written to this partition will be no less than write_time_high_watermark.
         * 
         *
         * .google.protobuf.Timestamp write_time_high_watermark = 4;
         */
        public Builder clearWriteTimeHighWatermark() {
          bitField0_ = (bitField0_ & ~0x00000008);
          writeTimeHighWatermark_ = null;
          if (writeTimeHighWatermarkBuilder_ != null) {
            writeTimeHighWatermarkBuilder_.dispose();
            writeTimeHighWatermarkBuilder_ = null;
          }
          onChanged();
          return this;
        }
        /**
         * 
         * Write timestamp of next message written to this partition will be no less than write_time_high_watermark.
         * 
         *
         * .google.protobuf.Timestamp write_time_high_watermark = 4;
         */
        public com.google.protobuf.Timestamp.Builder getWriteTimeHighWatermarkBuilder() {
          bitField0_ |= 0x00000008;
          onChanged();
          return getWriteTimeHighWatermarkFieldBuilder().getBuilder();
        }
        /**
         * 
         * Write timestamp of next message written to this partition will be no less than write_time_high_watermark.
         * 
         *
         * .google.protobuf.Timestamp write_time_high_watermark = 4;
         */
        public com.google.protobuf.TimestampOrBuilder getWriteTimeHighWatermarkOrBuilder() {
          if (writeTimeHighWatermarkBuilder_ != null) {
            return writeTimeHighWatermarkBuilder_.getMessageOrBuilder();
          } else {
            return writeTimeHighWatermark_ == null ?
                com.google.protobuf.Timestamp.getDefaultInstance() : writeTimeHighWatermark_;
          }
        }
        /**
         * 
         * Write timestamp of next message written to this partition will be no less than write_time_high_watermark.
         * 
         *
         * .google.protobuf.Timestamp write_time_high_watermark = 4;
         */
        private com.google.protobuf.SingleFieldBuilderV3<
            com.google.protobuf.Timestamp, com.google.protobuf.Timestamp.Builder, com.google.protobuf.TimestampOrBuilder> 
            getWriteTimeHighWatermarkFieldBuilder() {
          if (writeTimeHighWatermarkBuilder_ == null) {
            writeTimeHighWatermarkBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
                com.google.protobuf.Timestamp, com.google.protobuf.Timestamp.Builder, com.google.protobuf.TimestampOrBuilder>(
                    getWriteTimeHighWatermark(),
                    getParentForChildren(),
                    isClean());
            writeTimeHighWatermark_ = null;
          }
          return writeTimeHighWatermarkBuilder_;
        }
        @java.lang.Override
        public final Builder setUnknownFields(
            final com.google.protobuf.UnknownFieldSet unknownFields) {
          return super.setUnknownFields(unknownFields);
        }

        @java.lang.Override
        public final Builder mergeUnknownFields(
            final com.google.protobuf.UnknownFieldSet unknownFields) {
          return super.mergeUnknownFields(unknownFields);
        }


        // @@protoc_insertion_point(builder_scope:Ydb.Topic.StreamReadMessage.PartitionSessionStatusResponse)
      }

      // @@protoc_insertion_point(class_scope:Ydb.Topic.StreamReadMessage.PartitionSessionStatusResponse)
      private static final tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusResponse DEFAULT_INSTANCE;
      static {
        DEFAULT_INSTANCE = new tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusResponse();
      }

      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusResponse getDefaultInstance() {
        return DEFAULT_INSTANCE;
      }

      private static final com.google.protobuf.Parser
          PARSER = new com.google.protobuf.AbstractParser() {
        @java.lang.Override
        public PartitionSessionStatusResponse parsePartialFrom(
            com.google.protobuf.CodedInputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws com.google.protobuf.InvalidProtocolBufferException {
          Builder builder = newBuilder();
          try {
            builder.mergeFrom(input, extensionRegistry);
          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
            throw e.setUnfinishedMessage(builder.buildPartial());
          } catch (com.google.protobuf.UninitializedMessageException e) {
            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
          } catch (java.io.IOException e) {
            throw new com.google.protobuf.InvalidProtocolBufferException(e)
                .setUnfinishedMessage(builder.buildPartial());
          }
          return builder.buildPartial();
        }
      };

      public static com.google.protobuf.Parser parser() {
        return PARSER;
      }

      @java.lang.Override
      public com.google.protobuf.Parser getParserForType() {
        return PARSER;
      }

      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionStatusResponse getDefaultInstanceForType() {
        return DEFAULT_INSTANCE;
      }

    }

    public interface StartPartitionSessionRequestOrBuilder extends
        // @@protoc_insertion_point(interface_extends:Ydb.Topic.StreamReadMessage.StartPartitionSessionRequest)
        com.google.protobuf.MessageOrBuilder {

      /**
       * 
       * Partition session description.
       * 
       *
       * .Ydb.Topic.StreamReadMessage.PartitionSession partition_session = 1;
       * @return Whether the partitionSession field is set.
       */
      boolean hasPartitionSession();
      /**
       * 
       * Partition session description.
       * 
       *
       * .Ydb.Topic.StreamReadMessage.PartitionSession partition_session = 1;
       * @return The partitionSession.
       */
      tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSession getPartitionSession();
      /**
       * 
       * Partition session description.
       * 
       *
       * .Ydb.Topic.StreamReadMessage.PartitionSession partition_session = 1;
       */
      tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionOrBuilder getPartitionSessionOrBuilder();

      /**
       * 
       * Each offset up to and including (committed_offset - 1) was fully processed.
       * 
       *
       * int64 committed_offset = 2;
       * @return The committedOffset.
       */
      long getCommittedOffset();

      /**
       * 
       * Partition contains messages with offsets in range [start, end).
       * 
       *
       * .Ydb.Topic.OffsetsRange partition_offsets = 3;
       * @return Whether the partitionOffsets field is set.
       */
      boolean hasPartitionOffsets();
      /**
       * 
       * Partition contains messages with offsets in range [start, end).
       * 
       *
       * .Ydb.Topic.OffsetsRange partition_offsets = 3;
       * @return The partitionOffsets.
       */
      tech.ydb.proto.topic.YdbTopic.OffsetsRange getPartitionOffsets();
      /**
       * 
       * Partition contains messages with offsets in range [start, end).
       * 
       *
       * .Ydb.Topic.OffsetsRange partition_offsets = 3;
       */
      tech.ydb.proto.topic.YdbTopic.OffsetsRangeOrBuilder getPartitionOffsetsOrBuilder();

      /**
       * 
       * Partition location, filled only when InitRequest.direct_read is true.
       * 
       *
       * .Ydb.Topic.PartitionLocation partition_location = 4;
       * @return Whether the partitionLocation field is set.
       */
      boolean hasPartitionLocation();
      /**
       * 
       * Partition location, filled only when InitRequest.direct_read is true.
       * 
       *
       * .Ydb.Topic.PartitionLocation partition_location = 4;
       * @return The partitionLocation.
       */
      tech.ydb.proto.topic.YdbTopic.PartitionLocation getPartitionLocation();
      /**
       * 
       * Partition location, filled only when InitRequest.direct_read is true.
       * 
       *
       * .Ydb.Topic.PartitionLocation partition_location = 4;
       */
      tech.ydb.proto.topic.YdbTopic.PartitionLocationOrBuilder getPartitionLocationOrBuilder();
    }
    /**
     * 
     * Command from server to create and start a partition session.
     * Client must respond with StartPartitionSessionResponse when ready to receive data from this partition.
     * 
     *
     * Protobuf type {@code Ydb.Topic.StreamReadMessage.StartPartitionSessionRequest}
     */
    public static final class StartPartitionSessionRequest extends
        com.google.protobuf.GeneratedMessageV3 implements
        // @@protoc_insertion_point(message_implements:Ydb.Topic.StreamReadMessage.StartPartitionSessionRequest)
        StartPartitionSessionRequestOrBuilder {
    private static final long serialVersionUID = 0L;
      // Use StartPartitionSessionRequest.newBuilder() to construct.
      private StartPartitionSessionRequest(com.google.protobuf.GeneratedMessageV3.Builder builder) {
        super(builder);
      }
      private StartPartitionSessionRequest() {
      }

      @java.lang.Override
      @SuppressWarnings({"unused"})
      protected java.lang.Object newInstance(
          UnusedPrivateParameter unused) {
        return new StartPartitionSessionRequest();
      }

      public static final com.google.protobuf.Descriptors.Descriptor
          getDescriptor() {
        return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamReadMessage_StartPartitionSessionRequest_descriptor;
      }

      @java.lang.Override
      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
          internalGetFieldAccessorTable() {
        return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamReadMessage_StartPartitionSessionRequest_fieldAccessorTable
            .ensureFieldAccessorsInitialized(
                tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest.class, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest.Builder.class);
      }

      private int bitField0_;
      public static final int PARTITION_SESSION_FIELD_NUMBER = 1;
      private tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSession partitionSession_;
      /**
       * 
       * Partition session description.
       * 
       *
       * .Ydb.Topic.StreamReadMessage.PartitionSession partition_session = 1;
       * @return Whether the partitionSession field is set.
       */
      @java.lang.Override
      public boolean hasPartitionSession() {
        return ((bitField0_ & 0x00000001) != 0);
      }
      /**
       * 
       * Partition session description.
       * 
       *
       * .Ydb.Topic.StreamReadMessage.PartitionSession partition_session = 1;
       * @return The partitionSession.
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSession getPartitionSession() {
        return partitionSession_ == null ? tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSession.getDefaultInstance() : partitionSession_;
      }
      /**
       * 
       * Partition session description.
       * 
       *
       * .Ydb.Topic.StreamReadMessage.PartitionSession partition_session = 1;
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionOrBuilder getPartitionSessionOrBuilder() {
        return partitionSession_ == null ? tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSession.getDefaultInstance() : partitionSession_;
      }

      public static final int COMMITTED_OFFSET_FIELD_NUMBER = 2;
      private long committedOffset_ = 0L;
      /**
       * 
       * Each offset up to and including (committed_offset - 1) was fully processed.
       * 
       *
       * int64 committed_offset = 2;
       * @return The committedOffset.
       */
      @java.lang.Override
      public long getCommittedOffset() {
        return committedOffset_;
      }

      public static final int PARTITION_OFFSETS_FIELD_NUMBER = 3;
      private tech.ydb.proto.topic.YdbTopic.OffsetsRange partitionOffsets_;
      /**
       * 
       * Partition contains messages with offsets in range [start, end).
       * 
       *
       * .Ydb.Topic.OffsetsRange partition_offsets = 3;
       * @return Whether the partitionOffsets field is set.
       */
      @java.lang.Override
      public boolean hasPartitionOffsets() {
        return ((bitField0_ & 0x00000002) != 0);
      }
      /**
       * 
       * Partition contains messages with offsets in range [start, end).
       * 
       *
       * .Ydb.Topic.OffsetsRange partition_offsets = 3;
       * @return The partitionOffsets.
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.OffsetsRange getPartitionOffsets() {
        return partitionOffsets_ == null ? tech.ydb.proto.topic.YdbTopic.OffsetsRange.getDefaultInstance() : partitionOffsets_;
      }
      /**
       * 
       * Partition contains messages with offsets in range [start, end).
       * 
       *
       * .Ydb.Topic.OffsetsRange partition_offsets = 3;
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.OffsetsRangeOrBuilder getPartitionOffsetsOrBuilder() {
        return partitionOffsets_ == null ? tech.ydb.proto.topic.YdbTopic.OffsetsRange.getDefaultInstance() : partitionOffsets_;
      }

      public static final int PARTITION_LOCATION_FIELD_NUMBER = 4;
      private tech.ydb.proto.topic.YdbTopic.PartitionLocation partitionLocation_;
      /**
       * 
       * Partition location, filled only when InitRequest.direct_read is true.
       * 
       *
       * .Ydb.Topic.PartitionLocation partition_location = 4;
       * @return Whether the partitionLocation field is set.
       */
      @java.lang.Override
      public boolean hasPartitionLocation() {
        return ((bitField0_ & 0x00000004) != 0);
      }
      /**
       * 
       * Partition location, filled only when InitRequest.direct_read is true.
       * 
       *
       * .Ydb.Topic.PartitionLocation partition_location = 4;
       * @return The partitionLocation.
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.PartitionLocation getPartitionLocation() {
        return partitionLocation_ == null ? tech.ydb.proto.topic.YdbTopic.PartitionLocation.getDefaultInstance() : partitionLocation_;
      }
      /**
       * 
       * Partition location, filled only when InitRequest.direct_read is true.
       * 
       *
       * .Ydb.Topic.PartitionLocation partition_location = 4;
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.PartitionLocationOrBuilder getPartitionLocationOrBuilder() {
        return partitionLocation_ == null ? tech.ydb.proto.topic.YdbTopic.PartitionLocation.getDefaultInstance() : partitionLocation_;
      }

      private byte memoizedIsInitialized = -1;
      @java.lang.Override
      public final boolean isInitialized() {
        byte isInitialized = memoizedIsInitialized;
        if (isInitialized == 1) return true;
        if (isInitialized == 0) return false;

        memoizedIsInitialized = 1;
        return true;
      }

      @java.lang.Override
      public void writeTo(com.google.protobuf.CodedOutputStream output)
                          throws java.io.IOException {
        if (((bitField0_ & 0x00000001) != 0)) {
          output.writeMessage(1, getPartitionSession());
        }
        if (committedOffset_ != 0L) {
          output.writeInt64(2, committedOffset_);
        }
        if (((bitField0_ & 0x00000002) != 0)) {
          output.writeMessage(3, getPartitionOffsets());
        }
        if (((bitField0_ & 0x00000004) != 0)) {
          output.writeMessage(4, getPartitionLocation());
        }
        getUnknownFields().writeTo(output);
      }

      @java.lang.Override
      public int getSerializedSize() {
        int size = memoizedSize;
        if (size != -1) return size;

        size = 0;
        if (((bitField0_ & 0x00000001) != 0)) {
          size += com.google.protobuf.CodedOutputStream
            .computeMessageSize(1, getPartitionSession());
        }
        if (committedOffset_ != 0L) {
          size += com.google.protobuf.CodedOutputStream
            .computeInt64Size(2, committedOffset_);
        }
        if (((bitField0_ & 0x00000002) != 0)) {
          size += com.google.protobuf.CodedOutputStream
            .computeMessageSize(3, getPartitionOffsets());
        }
        if (((bitField0_ & 0x00000004) != 0)) {
          size += com.google.protobuf.CodedOutputStream
            .computeMessageSize(4, getPartitionLocation());
        }
        size += getUnknownFields().getSerializedSize();
        memoizedSize = size;
        return size;
      }

      @java.lang.Override
      public boolean equals(final java.lang.Object obj) {
        if (obj == this) {
         return true;
        }
        if (!(obj instanceof tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest)) {
          return super.equals(obj);
        }
        tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest other = (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest) obj;

        if (hasPartitionSession() != other.hasPartitionSession()) return false;
        if (hasPartitionSession()) {
          if (!getPartitionSession()
              .equals(other.getPartitionSession())) return false;
        }
        if (getCommittedOffset()
            != other.getCommittedOffset()) return false;
        if (hasPartitionOffsets() != other.hasPartitionOffsets()) return false;
        if (hasPartitionOffsets()) {
          if (!getPartitionOffsets()
              .equals(other.getPartitionOffsets())) return false;
        }
        if (hasPartitionLocation() != other.hasPartitionLocation()) return false;
        if (hasPartitionLocation()) {
          if (!getPartitionLocation()
              .equals(other.getPartitionLocation())) return false;
        }
        if (!getUnknownFields().equals(other.getUnknownFields())) return false;
        return true;
      }

      @java.lang.Override
      public int hashCode() {
        if (memoizedHashCode != 0) {
          return memoizedHashCode;
        }
        int hash = 41;
        hash = (19 * hash) + getDescriptor().hashCode();
        if (hasPartitionSession()) {
          hash = (37 * hash) + PARTITION_SESSION_FIELD_NUMBER;
          hash = (53 * hash) + getPartitionSession().hashCode();
        }
        hash = (37 * hash) + COMMITTED_OFFSET_FIELD_NUMBER;
        hash = (53 * hash) + com.google.protobuf.Internal.hashLong(
            getCommittedOffset());
        if (hasPartitionOffsets()) {
          hash = (37 * hash) + PARTITION_OFFSETS_FIELD_NUMBER;
          hash = (53 * hash) + getPartitionOffsets().hashCode();
        }
        if (hasPartitionLocation()) {
          hash = (37 * hash) + PARTITION_LOCATION_FIELD_NUMBER;
          hash = (53 * hash) + getPartitionLocation().hashCode();
        }
        hash = (29 * hash) + getUnknownFields().hashCode();
        memoizedHashCode = hash;
        return hash;
      }

      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest parseFrom(
          java.nio.ByteBuffer data)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest parseFrom(
          java.nio.ByteBuffer data,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data, extensionRegistry);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest parseFrom(
          com.google.protobuf.ByteString data)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest parseFrom(
          com.google.protobuf.ByteString data,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data, extensionRegistry);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest parseFrom(byte[] data)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest parseFrom(
          byte[] data,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data, extensionRegistry);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest parseFrom(java.io.InputStream input)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
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      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest parseFrom(
          java.io.InputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseWithIOException(PARSER, input, extensionRegistry);
      }

      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest parseDelimitedFrom(java.io.InputStream input)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseDelimitedWithIOException(PARSER, input);
      }

      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest parseDelimitedFrom(
          java.io.InputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest parseFrom(
          com.google.protobuf.CodedInputStream input)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseWithIOException(PARSER, input);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest parseFrom(
          com.google.protobuf.CodedInputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseWithIOException(PARSER, input, extensionRegistry);
      }

      @java.lang.Override
      public Builder newBuilderForType() { return newBuilder(); }
      public static Builder newBuilder() {
        return DEFAULT_INSTANCE.toBuilder();
      }
      public static Builder newBuilder(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest prototype) {
        return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
      }
      @java.lang.Override
      public Builder toBuilder() {
        return this == DEFAULT_INSTANCE
            ? new Builder() : new Builder().mergeFrom(this);
      }

      @java.lang.Override
      protected Builder newBuilderForType(
          com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
        Builder builder = new Builder(parent);
        return builder;
      }
      /**
       * 
       * Command from server to create and start a partition session.
       * Client must respond with StartPartitionSessionResponse when ready to receive data from this partition.
       * 
       *
       * Protobuf type {@code Ydb.Topic.StreamReadMessage.StartPartitionSessionRequest}
       */
      public static final class Builder extends
          com.google.protobuf.GeneratedMessageV3.Builder implements
          // @@protoc_insertion_point(builder_implements:Ydb.Topic.StreamReadMessage.StartPartitionSessionRequest)
          tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequestOrBuilder {
        public static final com.google.protobuf.Descriptors.Descriptor
            getDescriptor() {
          return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamReadMessage_StartPartitionSessionRequest_descriptor;
        }

        @java.lang.Override
        protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
            internalGetFieldAccessorTable() {
          return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamReadMessage_StartPartitionSessionRequest_fieldAccessorTable
              .ensureFieldAccessorsInitialized(
                  tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest.class, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest.Builder.class);
        }

        // Construct using tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest.newBuilder()
        private Builder() {
          maybeForceBuilderInitialization();
        }

        private Builder(
            com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
          super(parent);
          maybeForceBuilderInitialization();
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        private void maybeForceBuilderInitialization() {
          if (com.google.protobuf.GeneratedMessageV3
                  .alwaysUseFieldBuilders) {
            getPartitionSessionFieldBuilder();
            getPartitionOffsetsFieldBuilder();
            getPartitionLocationFieldBuilder();
          }
        }
        @java.lang.Override
        public Builder clear() {
          super.clear();
          bitField0_ = 0;
          partitionSession_ = null;
          if (partitionSessionBuilder_ != null) {
            partitionSessionBuilder_.dispose();
            partitionSessionBuilder_ = null;
          }
          committedOffset_ = 0L;
          partitionOffsets_ = null;
          if (partitionOffsetsBuilder_ != null) {
            partitionOffsetsBuilder_.dispose();
            partitionOffsetsBuilder_ = null;
          }
          partitionLocation_ = null;
          if (partitionLocationBuilder_ != null) {
            partitionLocationBuilder_.dispose();
            partitionLocationBuilder_ = null;
          }
          return this;
        }

        @java.lang.Override
        public com.google.protobuf.Descriptors.Descriptor
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          return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamReadMessage_StartPartitionSessionRequest_descriptor;
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        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest getDefaultInstanceForType() {
          return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest.getDefaultInstance();
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        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest build() {
          tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest result = buildPartial();
          if (!result.isInitialized()) {
            throw newUninitializedMessageException(result);
          }
          return result;
        }

        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest buildPartial() {
          tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest result = new tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest(this);
          if (bitField0_ != 0) { buildPartial0(result); }
          onBuilt();
          return result;
        }

        private void buildPartial0(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest result) {
          int from_bitField0_ = bitField0_;
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          if (((from_bitField0_ & 0x00000001) != 0)) {
            result.partitionSession_ = partitionSessionBuilder_ == null
                ? partitionSession_
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            to_bitField0_ |= 0x00000001;
          }
          if (((from_bitField0_ & 0x00000002) != 0)) {
            result.committedOffset_ = committedOffset_;
          }
          if (((from_bitField0_ & 0x00000004) != 0)) {
            result.partitionOffsets_ = partitionOffsetsBuilder_ == null
                ? partitionOffsets_
                : partitionOffsetsBuilder_.build();
            to_bitField0_ |= 0x00000002;
          }
          if (((from_bitField0_ & 0x00000008) != 0)) {
            result.partitionLocation_ = partitionLocationBuilder_ == null
                ? partitionLocation_
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            to_bitField0_ |= 0x00000004;
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          result.bitField0_ |= to_bitField0_;
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        @java.lang.Override
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        @java.lang.Override
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          return super.setField(field, value);
        }
        @java.lang.Override
        public Builder clearField(
            com.google.protobuf.Descriptors.FieldDescriptor field) {
          return super.clearField(field);
        }
        @java.lang.Override
        public Builder clearOneof(
            com.google.protobuf.Descriptors.OneofDescriptor oneof) {
          return super.clearOneof(oneof);
        }
        @java.lang.Override
        public Builder setRepeatedField(
            com.google.protobuf.Descriptors.FieldDescriptor field,
            int index, java.lang.Object value) {
          return super.setRepeatedField(field, index, value);
        }
        @java.lang.Override
        public Builder addRepeatedField(
            com.google.protobuf.Descriptors.FieldDescriptor field,
            java.lang.Object value) {
          return super.addRepeatedField(field, value);
        }
        @java.lang.Override
        public Builder mergeFrom(com.google.protobuf.Message other) {
          if (other instanceof tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest) {
            return mergeFrom((tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest)other);
          } else {
            super.mergeFrom(other);
            return this;
          }
        }

        public Builder mergeFrom(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest other) {
          if (other == tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest.getDefaultInstance()) return this;
          if (other.hasPartitionSession()) {
            mergePartitionSession(other.getPartitionSession());
          }
          if (other.getCommittedOffset() != 0L) {
            setCommittedOffset(other.getCommittedOffset());
          }
          if (other.hasPartitionOffsets()) {
            mergePartitionOffsets(other.getPartitionOffsets());
          }
          if (other.hasPartitionLocation()) {
            mergePartitionLocation(other.getPartitionLocation());
          }
          this.mergeUnknownFields(other.getUnknownFields());
          onChanged();
          return this;
        }

        @java.lang.Override
        public final boolean isInitialized() {
          return true;
        }

        @java.lang.Override
        public Builder mergeFrom(
            com.google.protobuf.CodedInputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws java.io.IOException {
          if (extensionRegistry == null) {
            throw new java.lang.NullPointerException();
          }
          try {
            boolean done = false;
            while (!done) {
              int tag = input.readTag();
              switch (tag) {
                case 0:
                  done = true;
                  break;
                case 10: {
                  input.readMessage(
                      getPartitionSessionFieldBuilder().getBuilder(),
                      extensionRegistry);
                  bitField0_ |= 0x00000001;
                  break;
                } // case 10
                case 16: {
                  committedOffset_ = input.readInt64();
                  bitField0_ |= 0x00000002;
                  break;
                } // case 16
                case 26: {
                  input.readMessage(
                      getPartitionOffsetsFieldBuilder().getBuilder(),
                      extensionRegistry);
                  bitField0_ |= 0x00000004;
                  break;
                } // case 26
                case 34: {
                  input.readMessage(
                      getPartitionLocationFieldBuilder().getBuilder(),
                      extensionRegistry);
                  bitField0_ |= 0x00000008;
                  break;
                } // case 34
                default: {
                  if (!super.parseUnknownField(input, extensionRegistry, tag)) {
                    done = true; // was an endgroup tag
                  }
                  break;
                } // default:
              } // switch (tag)
            } // while (!done)
          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
            throw e.unwrapIOException();
          } finally {
            onChanged();
          } // finally
          return this;
        }
        private int bitField0_;

        private tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSession partitionSession_;
        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSession, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSession.Builder, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionOrBuilder> partitionSessionBuilder_;
        /**
         * 
         * Partition session description.
         * 
         *
         * .Ydb.Topic.StreamReadMessage.PartitionSession partition_session = 1;
         * @return Whether the partitionSession field is set.
         */
        public boolean hasPartitionSession() {
          return ((bitField0_ & 0x00000001) != 0);
        }
        /**
         * 
         * Partition session description.
         * 
         *
         * .Ydb.Topic.StreamReadMessage.PartitionSession partition_session = 1;
         * @return The partitionSession.
         */
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSession getPartitionSession() {
          if (partitionSessionBuilder_ == null) {
            return partitionSession_ == null ? tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSession.getDefaultInstance() : partitionSession_;
          } else {
            return partitionSessionBuilder_.getMessage();
          }
        }
        /**
         * 
         * Partition session description.
         * 
         *
         * .Ydb.Topic.StreamReadMessage.PartitionSession partition_session = 1;
         */
        public Builder setPartitionSession(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSession value) {
          if (partitionSessionBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            partitionSession_ = value;
          } else {
            partitionSessionBuilder_.setMessage(value);
          }
          bitField0_ |= 0x00000001;
          onChanged();
          return this;
        }
        /**
         * 
         * Partition session description.
         * 
         *
         * .Ydb.Topic.StreamReadMessage.PartitionSession partition_session = 1;
         */
        public Builder setPartitionSession(
            tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSession.Builder builderForValue) {
          if (partitionSessionBuilder_ == null) {
            partitionSession_ = builderForValue.build();
          } else {
            partitionSessionBuilder_.setMessage(builderForValue.build());
          }
          bitField0_ |= 0x00000001;
          onChanged();
          return this;
        }
        /**
         * 
         * Partition session description.
         * 
         *
         * .Ydb.Topic.StreamReadMessage.PartitionSession partition_session = 1;
         */
        public Builder mergePartitionSession(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSession value) {
          if (partitionSessionBuilder_ == null) {
            if (((bitField0_ & 0x00000001) != 0) &&
              partitionSession_ != null &&
              partitionSession_ != tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSession.getDefaultInstance()) {
              getPartitionSessionBuilder().mergeFrom(value);
            } else {
              partitionSession_ = value;
            }
          } else {
            partitionSessionBuilder_.mergeFrom(value);
          }
          if (partitionSession_ != null) {
            bitField0_ |= 0x00000001;
            onChanged();
          }
          return this;
        }
        /**
         * 
         * Partition session description.
         * 
         *
         * .Ydb.Topic.StreamReadMessage.PartitionSession partition_session = 1;
         */
        public Builder clearPartitionSession() {
          bitField0_ = (bitField0_ & ~0x00000001);
          partitionSession_ = null;
          if (partitionSessionBuilder_ != null) {
            partitionSessionBuilder_.dispose();
            partitionSessionBuilder_ = null;
          }
          onChanged();
          return this;
        }
        /**
         * 
         * Partition session description.
         * 
         *
         * .Ydb.Topic.StreamReadMessage.PartitionSession partition_session = 1;
         */
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSession.Builder getPartitionSessionBuilder() {
          bitField0_ |= 0x00000001;
          onChanged();
          return getPartitionSessionFieldBuilder().getBuilder();
        }
        /**
         * 
         * Partition session description.
         * 
         *
         * .Ydb.Topic.StreamReadMessage.PartitionSession partition_session = 1;
         */
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionOrBuilder getPartitionSessionOrBuilder() {
          if (partitionSessionBuilder_ != null) {
            return partitionSessionBuilder_.getMessageOrBuilder();
          } else {
            return partitionSession_ == null ?
                tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSession.getDefaultInstance() : partitionSession_;
          }
        }
        /**
         * 
         * Partition session description.
         * 
         *
         * .Ydb.Topic.StreamReadMessage.PartitionSession partition_session = 1;
         */
        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSession, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSession.Builder, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionOrBuilder> 
            getPartitionSessionFieldBuilder() {
          if (partitionSessionBuilder_ == null) {
            partitionSessionBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
                tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSession, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSession.Builder, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.PartitionSessionOrBuilder>(
                    getPartitionSession(),
                    getParentForChildren(),
                    isClean());
            partitionSession_ = null;
          }
          return partitionSessionBuilder_;
        }

        private long committedOffset_ ;
        /**
         * 
         * Each offset up to and including (committed_offset - 1) was fully processed.
         * 
         *
         * int64 committed_offset = 2;
         * @return The committedOffset.
         */
        @java.lang.Override
        public long getCommittedOffset() {
          return committedOffset_;
        }
        /**
         * 
         * Each offset up to and including (committed_offset - 1) was fully processed.
         * 
         *
         * int64 committed_offset = 2;
         * @param value The committedOffset to set.
         * @return This builder for chaining.
         */
        public Builder setCommittedOffset(long value) {

          committedOffset_ = value;
          bitField0_ |= 0x00000002;
          onChanged();
          return this;
        }
        /**
         * 
         * Each offset up to and including (committed_offset - 1) was fully processed.
         * 
         *
         * int64 committed_offset = 2;
         * @return This builder for chaining.
         */
        public Builder clearCommittedOffset() {
          bitField0_ = (bitField0_ & ~0x00000002);
          committedOffset_ = 0L;
          onChanged();
          return this;
        }

        private tech.ydb.proto.topic.YdbTopic.OffsetsRange partitionOffsets_;
        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.OffsetsRange, tech.ydb.proto.topic.YdbTopic.OffsetsRange.Builder, tech.ydb.proto.topic.YdbTopic.OffsetsRangeOrBuilder> partitionOffsetsBuilder_;
        /**
         * 
         * Partition contains messages with offsets in range [start, end).
         * 
         *
         * .Ydb.Topic.OffsetsRange partition_offsets = 3;
         * @return Whether the partitionOffsets field is set.
         */
        public boolean hasPartitionOffsets() {
          return ((bitField0_ & 0x00000004) != 0);
        }
        /**
         * 
         * Partition contains messages with offsets in range [start, end).
         * 
         *
         * .Ydb.Topic.OffsetsRange partition_offsets = 3;
         * @return The partitionOffsets.
         */
        public tech.ydb.proto.topic.YdbTopic.OffsetsRange getPartitionOffsets() {
          if (partitionOffsetsBuilder_ == null) {
            return partitionOffsets_ == null ? tech.ydb.proto.topic.YdbTopic.OffsetsRange.getDefaultInstance() : partitionOffsets_;
          } else {
            return partitionOffsetsBuilder_.getMessage();
          }
        }
        /**
         * 
         * Partition contains messages with offsets in range [start, end).
         * 
         *
         * .Ydb.Topic.OffsetsRange partition_offsets = 3;
         */
        public Builder setPartitionOffsets(tech.ydb.proto.topic.YdbTopic.OffsetsRange value) {
          if (partitionOffsetsBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            partitionOffsets_ = value;
          } else {
            partitionOffsetsBuilder_.setMessage(value);
          }
          bitField0_ |= 0x00000004;
          onChanged();
          return this;
        }
        /**
         * 
         * Partition contains messages with offsets in range [start, end).
         * 
         *
         * .Ydb.Topic.OffsetsRange partition_offsets = 3;
         */
        public Builder setPartitionOffsets(
            tech.ydb.proto.topic.YdbTopic.OffsetsRange.Builder builderForValue) {
          if (partitionOffsetsBuilder_ == null) {
            partitionOffsets_ = builderForValue.build();
          } else {
            partitionOffsetsBuilder_.setMessage(builderForValue.build());
          }
          bitField0_ |= 0x00000004;
          onChanged();
          return this;
        }
        /**
         * 
         * Partition contains messages with offsets in range [start, end).
         * 
         *
         * .Ydb.Topic.OffsetsRange partition_offsets = 3;
         */
        public Builder mergePartitionOffsets(tech.ydb.proto.topic.YdbTopic.OffsetsRange value) {
          if (partitionOffsetsBuilder_ == null) {
            if (((bitField0_ & 0x00000004) != 0) &&
              partitionOffsets_ != null &&
              partitionOffsets_ != tech.ydb.proto.topic.YdbTopic.OffsetsRange.getDefaultInstance()) {
              getPartitionOffsetsBuilder().mergeFrom(value);
            } else {
              partitionOffsets_ = value;
            }
          } else {
            partitionOffsetsBuilder_.mergeFrom(value);
          }
          if (partitionOffsets_ != null) {
            bitField0_ |= 0x00000004;
            onChanged();
          }
          return this;
        }
        /**
         * 
         * Partition contains messages with offsets in range [start, end).
         * 
         *
         * .Ydb.Topic.OffsetsRange partition_offsets = 3;
         */
        public Builder clearPartitionOffsets() {
          bitField0_ = (bitField0_ & ~0x00000004);
          partitionOffsets_ = null;
          if (partitionOffsetsBuilder_ != null) {
            partitionOffsetsBuilder_.dispose();
            partitionOffsetsBuilder_ = null;
          }
          onChanged();
          return this;
        }
        /**
         * 
         * Partition contains messages with offsets in range [start, end).
         * 
         *
         * .Ydb.Topic.OffsetsRange partition_offsets = 3;
         */
        public tech.ydb.proto.topic.YdbTopic.OffsetsRange.Builder getPartitionOffsetsBuilder() {
          bitField0_ |= 0x00000004;
          onChanged();
          return getPartitionOffsetsFieldBuilder().getBuilder();
        }
        /**
         * 
         * Partition contains messages with offsets in range [start, end).
         * 
         *
         * .Ydb.Topic.OffsetsRange partition_offsets = 3;
         */
        public tech.ydb.proto.topic.YdbTopic.OffsetsRangeOrBuilder getPartitionOffsetsOrBuilder() {
          if (partitionOffsetsBuilder_ != null) {
            return partitionOffsetsBuilder_.getMessageOrBuilder();
          } else {
            return partitionOffsets_ == null ?
                tech.ydb.proto.topic.YdbTopic.OffsetsRange.getDefaultInstance() : partitionOffsets_;
          }
        }
        /**
         * 
         * Partition contains messages with offsets in range [start, end).
         * 
         *
         * .Ydb.Topic.OffsetsRange partition_offsets = 3;
         */
        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.OffsetsRange, tech.ydb.proto.topic.YdbTopic.OffsetsRange.Builder, tech.ydb.proto.topic.YdbTopic.OffsetsRangeOrBuilder> 
            getPartitionOffsetsFieldBuilder() {
          if (partitionOffsetsBuilder_ == null) {
            partitionOffsetsBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
                tech.ydb.proto.topic.YdbTopic.OffsetsRange, tech.ydb.proto.topic.YdbTopic.OffsetsRange.Builder, tech.ydb.proto.topic.YdbTopic.OffsetsRangeOrBuilder>(
                    getPartitionOffsets(),
                    getParentForChildren(),
                    isClean());
            partitionOffsets_ = null;
          }
          return partitionOffsetsBuilder_;
        }

        private tech.ydb.proto.topic.YdbTopic.PartitionLocation partitionLocation_;
        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.PartitionLocation, tech.ydb.proto.topic.YdbTopic.PartitionLocation.Builder, tech.ydb.proto.topic.YdbTopic.PartitionLocationOrBuilder> partitionLocationBuilder_;
        /**
         * 
         * Partition location, filled only when InitRequest.direct_read is true.
         * 
         *
         * .Ydb.Topic.PartitionLocation partition_location = 4;
         * @return Whether the partitionLocation field is set.
         */
        public boolean hasPartitionLocation() {
          return ((bitField0_ & 0x00000008) != 0);
        }
        /**
         * 
         * Partition location, filled only when InitRequest.direct_read is true.
         * 
         *
         * .Ydb.Topic.PartitionLocation partition_location = 4;
         * @return The partitionLocation.
         */
        public tech.ydb.proto.topic.YdbTopic.PartitionLocation getPartitionLocation() {
          if (partitionLocationBuilder_ == null) {
            return partitionLocation_ == null ? tech.ydb.proto.topic.YdbTopic.PartitionLocation.getDefaultInstance() : partitionLocation_;
          } else {
            return partitionLocationBuilder_.getMessage();
          }
        }
        /**
         * 
         * Partition location, filled only when InitRequest.direct_read is true.
         * 
         *
         * .Ydb.Topic.PartitionLocation partition_location = 4;
         */
        public Builder setPartitionLocation(tech.ydb.proto.topic.YdbTopic.PartitionLocation value) {
          if (partitionLocationBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            partitionLocation_ = value;
          } else {
            partitionLocationBuilder_.setMessage(value);
          }
          bitField0_ |= 0x00000008;
          onChanged();
          return this;
        }
        /**
         * 
         * Partition location, filled only when InitRequest.direct_read is true.
         * 
         *
         * .Ydb.Topic.PartitionLocation partition_location = 4;
         */
        public Builder setPartitionLocation(
            tech.ydb.proto.topic.YdbTopic.PartitionLocation.Builder builderForValue) {
          if (partitionLocationBuilder_ == null) {
            partitionLocation_ = builderForValue.build();
          } else {
            partitionLocationBuilder_.setMessage(builderForValue.build());
          }
          bitField0_ |= 0x00000008;
          onChanged();
          return this;
        }
        /**
         * 
         * Partition location, filled only when InitRequest.direct_read is true.
         * 
         *
         * .Ydb.Topic.PartitionLocation partition_location = 4;
         */
        public Builder mergePartitionLocation(tech.ydb.proto.topic.YdbTopic.PartitionLocation value) {
          if (partitionLocationBuilder_ == null) {
            if (((bitField0_ & 0x00000008) != 0) &&
              partitionLocation_ != null &&
              partitionLocation_ != tech.ydb.proto.topic.YdbTopic.PartitionLocation.getDefaultInstance()) {
              getPartitionLocationBuilder().mergeFrom(value);
            } else {
              partitionLocation_ = value;
            }
          } else {
            partitionLocationBuilder_.mergeFrom(value);
          }
          if (partitionLocation_ != null) {
            bitField0_ |= 0x00000008;
            onChanged();
          }
          return this;
        }
        /**
         * 
         * Partition location, filled only when InitRequest.direct_read is true.
         * 
         *
         * .Ydb.Topic.PartitionLocation partition_location = 4;
         */
        public Builder clearPartitionLocation() {
          bitField0_ = (bitField0_ & ~0x00000008);
          partitionLocation_ = null;
          if (partitionLocationBuilder_ != null) {
            partitionLocationBuilder_.dispose();
            partitionLocationBuilder_ = null;
          }
          onChanged();
          return this;
        }
        /**
         * 
         * Partition location, filled only when InitRequest.direct_read is true.
         * 
         *
         * .Ydb.Topic.PartitionLocation partition_location = 4;
         */
        public tech.ydb.proto.topic.YdbTopic.PartitionLocation.Builder getPartitionLocationBuilder() {
          bitField0_ |= 0x00000008;
          onChanged();
          return getPartitionLocationFieldBuilder().getBuilder();
        }
        /**
         * 
         * Partition location, filled only when InitRequest.direct_read is true.
         * 
         *
         * .Ydb.Topic.PartitionLocation partition_location = 4;
         */
        public tech.ydb.proto.topic.YdbTopic.PartitionLocationOrBuilder getPartitionLocationOrBuilder() {
          if (partitionLocationBuilder_ != null) {
            return partitionLocationBuilder_.getMessageOrBuilder();
          } else {
            return partitionLocation_ == null ?
                tech.ydb.proto.topic.YdbTopic.PartitionLocation.getDefaultInstance() : partitionLocation_;
          }
        }
        /**
         * 
         * Partition location, filled only when InitRequest.direct_read is true.
         * 
         *
         * .Ydb.Topic.PartitionLocation partition_location = 4;
         */
        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.PartitionLocation, tech.ydb.proto.topic.YdbTopic.PartitionLocation.Builder, tech.ydb.proto.topic.YdbTopic.PartitionLocationOrBuilder> 
            getPartitionLocationFieldBuilder() {
          if (partitionLocationBuilder_ == null) {
            partitionLocationBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
                tech.ydb.proto.topic.YdbTopic.PartitionLocation, tech.ydb.proto.topic.YdbTopic.PartitionLocation.Builder, tech.ydb.proto.topic.YdbTopic.PartitionLocationOrBuilder>(
                    getPartitionLocation(),
                    getParentForChildren(),
                    isClean());
            partitionLocation_ = null;
          }
          return partitionLocationBuilder_;
        }
        @java.lang.Override
        public final Builder setUnknownFields(
            final com.google.protobuf.UnknownFieldSet unknownFields) {
          return super.setUnknownFields(unknownFields);
        }

        @java.lang.Override
        public final Builder mergeUnknownFields(
            final com.google.protobuf.UnknownFieldSet unknownFields) {
          return super.mergeUnknownFields(unknownFields);
        }


        // @@protoc_insertion_point(builder_scope:Ydb.Topic.StreamReadMessage.StartPartitionSessionRequest)
      }

      // @@protoc_insertion_point(class_scope:Ydb.Topic.StreamReadMessage.StartPartitionSessionRequest)
      private static final tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest DEFAULT_INSTANCE;
      static {
        DEFAULT_INSTANCE = new tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest();
      }

      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest getDefaultInstance() {
        return DEFAULT_INSTANCE;
      }

      private static final com.google.protobuf.Parser
          PARSER = new com.google.protobuf.AbstractParser() {
        @java.lang.Override
        public StartPartitionSessionRequest parsePartialFrom(
            com.google.protobuf.CodedInputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws com.google.protobuf.InvalidProtocolBufferException {
          Builder builder = newBuilder();
          try {
            builder.mergeFrom(input, extensionRegistry);
          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
            throw e.setUnfinishedMessage(builder.buildPartial());
          } catch (com.google.protobuf.UninitializedMessageException e) {
            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
          } catch (java.io.IOException e) {
            throw new com.google.protobuf.InvalidProtocolBufferException(e)
                .setUnfinishedMessage(builder.buildPartial());
          }
          return builder.buildPartial();
        }
      };

      public static com.google.protobuf.Parser parser() {
        return PARSER;
      }

      @java.lang.Override
      public com.google.protobuf.Parser getParserForType() {
        return PARSER;
      }

      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest getDefaultInstanceForType() {
        return DEFAULT_INSTANCE;
      }

    }

    public interface StartPartitionSessionResponseOrBuilder extends
        // @@protoc_insertion_point(interface_extends:Ydb.Topic.StreamReadMessage.StartPartitionSessionResponse)
        com.google.protobuf.MessageOrBuilder {

      /**
       * 
       * Partition session identifier of partition to start read.
       * 
       *
       * int64 partition_session_id = 1;
       * @return The partitionSessionId.
       */
      long getPartitionSessionId();

      /**
       * 
       * Reads in this partition session will start from offset no less than read_offset.
       * If read_offset is set, server will check that read_offset is no less that actual committed offset.
       * If check fails then server will send an error message (status != SUCCESS) and close stream.
       *
       * If read_offset is not set, no check will be made.
       * InitRequest.max_lag and InitRequest.read_from could lead to skip of more messages.
       * Server will return data starting from offset that is maximum of actual committed offset, read_offset (if set)
       * and offsets calculated from InitRequest.max_lag and InitRequest.read_from.
       * 
       *
       * optional int64 read_offset = 2;
       * @return Whether the readOffset field is set.
       */
      boolean hasReadOffset();
      /**
       * 
       * Reads in this partition session will start from offset no less than read_offset.
       * If read_offset is set, server will check that read_offset is no less that actual committed offset.
       * If check fails then server will send an error message (status != SUCCESS) and close stream.
       *
       * If read_offset is not set, no check will be made.
       * InitRequest.max_lag and InitRequest.read_from could lead to skip of more messages.
       * Server will return data starting from offset that is maximum of actual committed offset, read_offset (if set)
       * and offsets calculated from InitRequest.max_lag and InitRequest.read_from.
       * 
       *
       * optional int64 read_offset = 2;
       * @return The readOffset.
       */
      long getReadOffset();

      /**
       * 
       * All messages with offset less than commit_offset are processed by client.
       * Server will commit this position if this is not done yet.
       * 
       *
       * optional int64 commit_offset = 3;
       * @return Whether the commitOffset field is set.
       */
      boolean hasCommitOffset();
      /**
       * 
       * All messages with offset less than commit_offset are processed by client.
       * Server will commit this position if this is not done yet.
       * 
       *
       * optional int64 commit_offset = 3;
       * @return The commitOffset.
       */
      long getCommitOffset();
    }
    /**
     * 
     * Signal for server that cient is ready to recive data for partition.
     * 
     *
     * Protobuf type {@code Ydb.Topic.StreamReadMessage.StartPartitionSessionResponse}
     */
    public static final class StartPartitionSessionResponse extends
        com.google.protobuf.GeneratedMessageV3 implements
        // @@protoc_insertion_point(message_implements:Ydb.Topic.StreamReadMessage.StartPartitionSessionResponse)
        StartPartitionSessionResponseOrBuilder {
    private static final long serialVersionUID = 0L;
      // Use StartPartitionSessionResponse.newBuilder() to construct.
      private StartPartitionSessionResponse(com.google.protobuf.GeneratedMessageV3.Builder builder) {
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       * 
       * Reads in this partition session will start from offset no less than read_offset.
       * If read_offset is set, server will check that read_offset is no less that actual committed offset.
       * If check fails then server will send an error message (status != SUCCESS) and close stream.
       *
       * If read_offset is not set, no check will be made.
       * InitRequest.max_lag and InitRequest.read_from could lead to skip of more messages.
       * Server will return data starting from offset that is maximum of actual committed offset, read_offset (if set)
       * and offsets calculated from InitRequest.max_lag and InitRequest.read_from.
       * 
       *
       * optional int64 read_offset = 2;
       * @return Whether the readOffset field is set.
       */
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       * 
       * Reads in this partition session will start from offset no less than read_offset.
       * If read_offset is set, server will check that read_offset is no less that actual committed offset.
       * If check fails then server will send an error message (status != SUCCESS) and close stream.
       *
       * If read_offset is not set, no check will be made.
       * InitRequest.max_lag and InitRequest.read_from could lead to skip of more messages.
       * Server will return data starting from offset that is maximum of actual committed offset, read_offset (if set)
       * and offsets calculated from InitRequest.max_lag and InitRequest.read_from.
       * 
       *
       * optional int64 read_offset = 2;
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       * 
       * All messages with offset less than commit_offset are processed by client.
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       * 
       *
       * optional int64 commit_offset = 3;
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       * 
       * All messages with offset less than commit_offset are processed by client.
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       * 
       *
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        if (obj == this) {
         return true;
        }
        if (!(obj instanceof tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionResponse)) {
          return super.equals(obj);
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      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionResponse parseFrom(
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          throws com.google.protobuf.InvalidProtocolBufferException {
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      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionResponse parseFrom(
          byte[] data,
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          throws com.google.protobuf.InvalidProtocolBufferException {
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          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
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        return com.google.protobuf.GeneratedMessageV3
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          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws java.io.IOException {
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          com.google.protobuf.CodedInputStream input)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseWithIOException(PARSER, input);
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      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionResponse parseFrom(
          com.google.protobuf.CodedInputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseWithIOException(PARSER, input, extensionRegistry);
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      @java.lang.Override
      public Builder newBuilderForType() { return newBuilder(); }
      public static Builder newBuilder() {
        return DEFAULT_INSTANCE.toBuilder();
      }
      public static Builder newBuilder(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionResponse prototype) {
        return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
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      @java.lang.Override
      public Builder toBuilder() {
        return this == DEFAULT_INSTANCE
            ? new Builder() : new Builder().mergeFrom(this);
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      @java.lang.Override
      protected Builder newBuilderForType(
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        return builder;
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      /**
       * 
       * Signal for server that cient is ready to recive data for partition.
       * 
       *
       * Protobuf type {@code Ydb.Topic.StreamReadMessage.StartPartitionSessionResponse}
       */
      public static final class Builder extends
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            getDescriptor() {
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        private Builder() {

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        private Builder(
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        public Builder clear() {
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          partitionSessionId_ = 0L;
          readOffset_ = 0L;
          commitOffset_ = 0L;
          return this;
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          tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionResponse result = buildPartial();
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            throw newUninitializedMessageException(result);
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        @java.lang.Override
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          if (bitField0_ != 0) { buildPartial0(result); }
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        public Builder clearOneof(
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        }

        public Builder mergeFrom(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionResponse other) {
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          if (other.getPartitionSessionId() != 0L) {
            setPartitionSessionId(other.getPartitionSessionId());
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          if (other.hasReadOffset()) {
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        @java.lang.Override
        public Builder mergeFrom(
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        private long partitionSessionId_ ;
        /**
         * 
         * Partition session identifier of partition to start read.
         * 
         *
         * int64 partition_session_id = 1;
         * @return The partitionSessionId.
         */
        @java.lang.Override
        public long getPartitionSessionId() {
          return partitionSessionId_;
        }
        /**
         * 
         * Partition session identifier of partition to start read.
         * 
         *
         * int64 partition_session_id = 1;
         * @param value The partitionSessionId to set.
         * @return This builder for chaining.
         */
        public Builder setPartitionSessionId(long value) {

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          bitField0_ |= 0x00000001;
          onChanged();
          return this;
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        /**
         * 
         * Partition session identifier of partition to start read.
         * 
         *
         * int64 partition_session_id = 1;
         * @return This builder for chaining.
         */
        public Builder clearPartitionSessionId() {
          bitField0_ = (bitField0_ & ~0x00000001);
          partitionSessionId_ = 0L;
          onChanged();
          return this;
        }

        private long readOffset_ ;
        /**
         * 
         * Reads in this partition session will start from offset no less than read_offset.
         * If read_offset is set, server will check that read_offset is no less that actual committed offset.
         * If check fails then server will send an error message (status != SUCCESS) and close stream.
         *
         * If read_offset is not set, no check will be made.
         * InitRequest.max_lag and InitRequest.read_from could lead to skip of more messages.
         * Server will return data starting from offset that is maximum of actual committed offset, read_offset (if set)
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         * 
         *
         * optional int64 read_offset = 2;
         * @return Whether the readOffset field is set.
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        }
        /**
         * 
         * Reads in this partition session will start from offset no less than read_offset.
         * If read_offset is set, server will check that read_offset is no less that actual committed offset.
         * If check fails then server will send an error message (status != SUCCESS) and close stream.
         *
         * If read_offset is not set, no check will be made.
         * InitRequest.max_lag and InitRequest.read_from could lead to skip of more messages.
         * Server will return data starting from offset that is maximum of actual committed offset, read_offset (if set)
         * and offsets calculated from InitRequest.max_lag and InitRequest.read_from.
         * 
         *
         * optional int64 read_offset = 2;
         * @return The readOffset.
         */
        @java.lang.Override
        public long getReadOffset() {
          return readOffset_;
        }
        /**
         * 
         * Reads in this partition session will start from offset no less than read_offset.
         * If read_offset is set, server will check that read_offset is no less that actual committed offset.
         * If check fails then server will send an error message (status != SUCCESS) and close stream.
         *
         * If read_offset is not set, no check will be made.
         * InitRequest.max_lag and InitRequest.read_from could lead to skip of more messages.
         * Server will return data starting from offset that is maximum of actual committed offset, read_offset (if set)
         * and offsets calculated from InitRequest.max_lag and InitRequest.read_from.
         * 
         *
         * optional int64 read_offset = 2;
         * @param value The readOffset to set.
         * @return This builder for chaining.
         */
        public Builder setReadOffset(long value) {

          readOffset_ = value;
          bitField0_ |= 0x00000002;
          onChanged();
          return this;
        }
        /**
         * 
         * Reads in this partition session will start from offset no less than read_offset.
         * If read_offset is set, server will check that read_offset is no less that actual committed offset.
         * If check fails then server will send an error message (status != SUCCESS) and close stream.
         *
         * If read_offset is not set, no check will be made.
         * InitRequest.max_lag and InitRequest.read_from could lead to skip of more messages.
         * Server will return data starting from offset that is maximum of actual committed offset, read_offset (if set)
         * and offsets calculated from InitRequest.max_lag and InitRequest.read_from.
         * 
         *
         * optional int64 read_offset = 2;
         * @return This builder for chaining.
         */
        public Builder clearReadOffset() {
          bitField0_ = (bitField0_ & ~0x00000002);
          readOffset_ = 0L;
          onChanged();
          return this;
        }

        private long commitOffset_ ;
        /**
         * 
         * All messages with offset less than commit_offset are processed by client.
         * Server will commit this position if this is not done yet.
         * 
         *
         * optional int64 commit_offset = 3;
         * @return Whether the commitOffset field is set.
         */
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         * 
         * All messages with offset less than commit_offset are processed by client.
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         * 
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         * 
         * All messages with offset less than commit_offset are processed by client.
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         * 
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         * optional int64 commit_offset = 3;
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         * 
         * All messages with offset less than commit_offset are processed by client.
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            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
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            throw new com.google.protobuf.InvalidProtocolBufferException(e)
                .setUnfinishedMessage(builder.buildPartial());
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          return builder.buildPartial();
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      };

      public static com.google.protobuf.Parser parser() {
        return PARSER;
      }

      @java.lang.Override
      public com.google.protobuf.Parser getParserForType() {
        return PARSER;
      }

      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionResponse getDefaultInstanceForType() {
        return DEFAULT_INSTANCE;
      }

    }

    public interface StopPartitionSessionRequestOrBuilder extends
        // @@protoc_insertion_point(interface_extends:Ydb.Topic.StreamReadMessage.StopPartitionSessionRequest)
        com.google.protobuf.MessageOrBuilder {

      /**
       * 
       * Identifier of partition session that is ready to be closed by server.
       * 
       *
       * int64 partition_session_id = 1;
       * @return The partitionSessionId.
       */
      long getPartitionSessionId();

      /**
       * 
       * Flag of graceful stop.
       * If set, server will wait for response from client before giving this partition to other read session.
       * Server will not send more data from this partition.
       * Client can process all received data and wait for commit and only after send response.
       * If False then server gives partition for other session right now.
       * All further commits for this partition session has no effect. Server is not waiting for response.
       * 
       *
       * bool graceful = 2;
       * @return The graceful.
       */
      boolean getGraceful();

      /**
       * 
       * Upper bound for committed offsets.
       * 
       *
       * int64 committed_offset = 3;
       * @return The committedOffset.
       */
      long getCommittedOffset();

      /**
       * 
       * Upper bound for read request identifiers, filled only when InitRequest.direct_read is true and graceful is true.
       * 
       *
       * int64 last_direct_read_id = 4;
       * @return The lastDirectReadId.
       */
      long getLastDirectReadId();
    }
    /**
     * 
     * Command from server to stop and destroy concrete partition session.
     * 
     *
     * Protobuf type {@code Ydb.Topic.StreamReadMessage.StopPartitionSessionRequest}
     */
    public static final class StopPartitionSessionRequest extends
        com.google.protobuf.GeneratedMessageV3 implements
        // @@protoc_insertion_point(message_implements:Ydb.Topic.StreamReadMessage.StopPartitionSessionRequest)
        StopPartitionSessionRequestOrBuilder {
    private static final long serialVersionUID = 0L;
      // Use StopPartitionSessionRequest.newBuilder() to construct.
      private StopPartitionSessionRequest(com.google.protobuf.GeneratedMessageV3.Builder builder) {
        super(builder);
      }
      private StopPartitionSessionRequest() {
      }

      @java.lang.Override
      @SuppressWarnings({"unused"})
      protected java.lang.Object newInstance(
          UnusedPrivateParameter unused) {
        return new StopPartitionSessionRequest();
      }

      public static final com.google.protobuf.Descriptors.Descriptor
          getDescriptor() {
        return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamReadMessage_StopPartitionSessionRequest_descriptor;
      }

      @java.lang.Override
      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
          internalGetFieldAccessorTable() {
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      }

      public static final int PARTITION_SESSION_ID_FIELD_NUMBER = 1;
      private long partitionSessionId_ = 0L;
      /**
       * 
       * Identifier of partition session that is ready to be closed by server.
       * 
       *
       * int64 partition_session_id = 1;
       * @return The partitionSessionId.
       */
      @java.lang.Override
      public long getPartitionSessionId() {
        return partitionSessionId_;
      }

      public static final int GRACEFUL_FIELD_NUMBER = 2;
      private boolean graceful_ = false;
      /**
       * 
       * Flag of graceful stop.
       * If set, server will wait for response from client before giving this partition to other read session.
       * Server will not send more data from this partition.
       * Client can process all received data and wait for commit and only after send response.
       * If False then server gives partition for other session right now.
       * All further commits for this partition session has no effect. Server is not waiting for response.
       * 
       *
       * bool graceful = 2;
       * @return The graceful.
       */
      @java.lang.Override
      public boolean getGraceful() {
        return graceful_;
      }

      public static final int COMMITTED_OFFSET_FIELD_NUMBER = 3;
      private long committedOffset_ = 0L;
      /**
       * 
       * Upper bound for committed offsets.
       * 
       *
       * int64 committed_offset = 3;
       * @return The committedOffset.
       */
      @java.lang.Override
      public long getCommittedOffset() {
        return committedOffset_;
      }

      public static final int LAST_DIRECT_READ_ID_FIELD_NUMBER = 4;
      private long lastDirectReadId_ = 0L;
      /**
       * 
       * Upper bound for read request identifiers, filled only when InitRequest.direct_read is true and graceful is true.
       * 
       *
       * int64 last_direct_read_id = 4;
       * @return The lastDirectReadId.
       */
      @java.lang.Override
      public long getLastDirectReadId() {
        return lastDirectReadId_;
      }

      private byte memoizedIsInitialized = -1;
      @java.lang.Override
      public final boolean isInitialized() {
        byte isInitialized = memoizedIsInitialized;
        if (isInitialized == 1) return true;
        if (isInitialized == 0) return false;

        memoizedIsInitialized = 1;
        return true;
      }

      @java.lang.Override
      public void writeTo(com.google.protobuf.CodedOutputStream output)
                          throws java.io.IOException {
        if (partitionSessionId_ != 0L) {
          output.writeInt64(1, partitionSessionId_);
        }
        if (graceful_ != false) {
          output.writeBool(2, graceful_);
        }
        if (committedOffset_ != 0L) {
          output.writeInt64(3, committedOffset_);
        }
        if (lastDirectReadId_ != 0L) {
          output.writeInt64(4, lastDirectReadId_);
        }
        getUnknownFields().writeTo(output);
      }

      @java.lang.Override
      public int getSerializedSize() {
        int size = memoizedSize;
        if (size != -1) return size;

        size = 0;
        if (partitionSessionId_ != 0L) {
          size += com.google.protobuf.CodedOutputStream
            .computeInt64Size(1, partitionSessionId_);
        }
        if (graceful_ != false) {
          size += com.google.protobuf.CodedOutputStream
            .computeBoolSize(2, graceful_);
        }
        if (committedOffset_ != 0L) {
          size += com.google.protobuf.CodedOutputStream
            .computeInt64Size(3, committedOffset_);
        }
        if (lastDirectReadId_ != 0L) {
          size += com.google.protobuf.CodedOutputStream
            .computeInt64Size(4, lastDirectReadId_);
        }
        size += getUnknownFields().getSerializedSize();
        memoizedSize = size;
        return size;
      }

      @java.lang.Override
      public boolean equals(final java.lang.Object obj) {
        if (obj == this) {
         return true;
        }
        if (!(obj instanceof tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest)) {
          return super.equals(obj);
        }
        tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest other = (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest) obj;

        if (getPartitionSessionId()
            != other.getPartitionSessionId()) return false;
        if (getGraceful()
            != other.getGraceful()) return false;
        if (getCommittedOffset()
            != other.getCommittedOffset()) return false;
        if (getLastDirectReadId()
            != other.getLastDirectReadId()) return false;
        if (!getUnknownFields().equals(other.getUnknownFields())) return false;
        return true;
      }

      @java.lang.Override
      public int hashCode() {
        if (memoizedHashCode != 0) {
          return memoizedHashCode;
        }
        int hash = 41;
        hash = (19 * hash) + getDescriptor().hashCode();
        hash = (37 * hash) + PARTITION_SESSION_ID_FIELD_NUMBER;
        hash = (53 * hash) + com.google.protobuf.Internal.hashLong(
            getPartitionSessionId());
        hash = (37 * hash) + GRACEFUL_FIELD_NUMBER;
        hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(
            getGraceful());
        hash = (37 * hash) + COMMITTED_OFFSET_FIELD_NUMBER;
        hash = (53 * hash) + com.google.protobuf.Internal.hashLong(
            getCommittedOffset());
        hash = (37 * hash) + LAST_DIRECT_READ_ID_FIELD_NUMBER;
        hash = (53 * hash) + com.google.protobuf.Internal.hashLong(
            getLastDirectReadId());
        hash = (29 * hash) + getUnknownFields().hashCode();
        memoizedHashCode = hash;
        return hash;
      }

      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest parseFrom(
          java.nio.ByteBuffer data)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest parseFrom(
          java.nio.ByteBuffer data,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data, extensionRegistry);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest parseFrom(
          com.google.protobuf.ByteString data)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest parseFrom(
          com.google.protobuf.ByteString data,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data, extensionRegistry);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest parseFrom(byte[] data)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest parseFrom(
          byte[] data,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data, extensionRegistry);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest parseFrom(java.io.InputStream input)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseWithIOException(PARSER, input);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest parseFrom(
          java.io.InputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseWithIOException(PARSER, input, extensionRegistry);
      }

      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest parseDelimitedFrom(java.io.InputStream input)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseDelimitedWithIOException(PARSER, input);
      }

      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest parseDelimitedFrom(
          java.io.InputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest parseFrom(
          com.google.protobuf.CodedInputStream input)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseWithIOException(PARSER, input);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest parseFrom(
          com.google.protobuf.CodedInputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseWithIOException(PARSER, input, extensionRegistry);
      }

      @java.lang.Override
      public Builder newBuilderForType() { return newBuilder(); }
      public static Builder newBuilder() {
        return DEFAULT_INSTANCE.toBuilder();
      }
      public static Builder newBuilder(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest prototype) {
        return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
      }
      @java.lang.Override
      public Builder toBuilder() {
        return this == DEFAULT_INSTANCE
            ? new Builder() : new Builder().mergeFrom(this);
      }

      @java.lang.Override
      protected Builder newBuilderForType(
          com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
        Builder builder = new Builder(parent);
        return builder;
      }
      /**
       * 
       * Command from server to stop and destroy concrete partition session.
       * 
       *
       * Protobuf type {@code Ydb.Topic.StreamReadMessage.StopPartitionSessionRequest}
       */
      public static final class Builder extends
          com.google.protobuf.GeneratedMessageV3.Builder implements
          // @@protoc_insertion_point(builder_implements:Ydb.Topic.StreamReadMessage.StopPartitionSessionRequest)
          tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequestOrBuilder {
        public static final com.google.protobuf.Descriptors.Descriptor
            getDescriptor() {
          return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamReadMessage_StopPartitionSessionRequest_descriptor;
        }

        @java.lang.Override
        protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
            internalGetFieldAccessorTable() {
          return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamReadMessage_StopPartitionSessionRequest_fieldAccessorTable
              .ensureFieldAccessorsInitialized(
                  tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest.class, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest.Builder.class);
        }

        // Construct using tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest.newBuilder()
        private Builder() {

        }

        private Builder(
            com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
          super(parent);

        }
        @java.lang.Override
        public Builder clear() {
          super.clear();
          bitField0_ = 0;
          partitionSessionId_ = 0L;
          graceful_ = false;
          committedOffset_ = 0L;
          lastDirectReadId_ = 0L;
          return this;
        }

        @java.lang.Override
        public com.google.protobuf.Descriptors.Descriptor
            getDescriptorForType() {
          return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamReadMessage_StopPartitionSessionRequest_descriptor;
        }

        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest getDefaultInstanceForType() {
          return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest.getDefaultInstance();
        }

        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest build() {
          tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest result = buildPartial();
          if (!result.isInitialized()) {
            throw newUninitializedMessageException(result);
          }
          return result;
        }

        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest buildPartial() {
          tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest result = new tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest(this);
          if (bitField0_ != 0) { buildPartial0(result); }
          onBuilt();
          return result;
        }

        private void buildPartial0(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest result) {
          int from_bitField0_ = bitField0_;
          if (((from_bitField0_ & 0x00000001) != 0)) {
            result.partitionSessionId_ = partitionSessionId_;
          }
          if (((from_bitField0_ & 0x00000002) != 0)) {
            result.graceful_ = graceful_;
          }
          if (((from_bitField0_ & 0x00000004) != 0)) {
            result.committedOffset_ = committedOffset_;
          }
          if (((from_bitField0_ & 0x00000008) != 0)) {
            result.lastDirectReadId_ = lastDirectReadId_;
          }
        }

        @java.lang.Override
        public Builder clone() {
          return super.clone();
        }
        @java.lang.Override
        public Builder setField(
            com.google.protobuf.Descriptors.FieldDescriptor field,
            java.lang.Object value) {
          return super.setField(field, value);
        }
        @java.lang.Override
        public Builder clearField(
            com.google.protobuf.Descriptors.FieldDescriptor field) {
          return super.clearField(field);
        }
        @java.lang.Override
        public Builder clearOneof(
            com.google.protobuf.Descriptors.OneofDescriptor oneof) {
          return super.clearOneof(oneof);
        }
        @java.lang.Override
        public Builder setRepeatedField(
            com.google.protobuf.Descriptors.FieldDescriptor field,
            int index, java.lang.Object value) {
          return super.setRepeatedField(field, index, value);
        }
        @java.lang.Override
        public Builder addRepeatedField(
            com.google.protobuf.Descriptors.FieldDescriptor field,
            java.lang.Object value) {
          return super.addRepeatedField(field, value);
        }
        @java.lang.Override
        public Builder mergeFrom(com.google.protobuf.Message other) {
          if (other instanceof tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest) {
            return mergeFrom((tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest)other);
          } else {
            super.mergeFrom(other);
            return this;
          }
        }

        public Builder mergeFrom(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest other) {
          if (other == tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest.getDefaultInstance()) return this;
          if (other.getPartitionSessionId() != 0L) {
            setPartitionSessionId(other.getPartitionSessionId());
          }
          if (other.getGraceful() != false) {
            setGraceful(other.getGraceful());
          }
          if (other.getCommittedOffset() != 0L) {
            setCommittedOffset(other.getCommittedOffset());
          }
          if (other.getLastDirectReadId() != 0L) {
            setLastDirectReadId(other.getLastDirectReadId());
          }
          this.mergeUnknownFields(other.getUnknownFields());
          onChanged();
          return this;
        }

        @java.lang.Override
        public final boolean isInitialized() {
          return true;
        }

        @java.lang.Override
        public Builder mergeFrom(
            com.google.protobuf.CodedInputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws java.io.IOException {
          if (extensionRegistry == null) {
            throw new java.lang.NullPointerException();
          }
          try {
            boolean done = false;
            while (!done) {
              int tag = input.readTag();
              switch (tag) {
                case 0:
                  done = true;
                  break;
                case 8: {
                  partitionSessionId_ = input.readInt64();
                  bitField0_ |= 0x00000001;
                  break;
                } // case 8
                case 16: {
                  graceful_ = input.readBool();
                  bitField0_ |= 0x00000002;
                  break;
                } // case 16
                case 24: {
                  committedOffset_ = input.readInt64();
                  bitField0_ |= 0x00000004;
                  break;
                } // case 24
                case 32: {
                  lastDirectReadId_ = input.readInt64();
                  bitField0_ |= 0x00000008;
                  break;
                } // case 32
                default: {
                  if (!super.parseUnknownField(input, extensionRegistry, tag)) {
                    done = true; // was an endgroup tag
                  }
                  break;
                } // default:
              } // switch (tag)
            } // while (!done)
          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
            throw e.unwrapIOException();
          } finally {
            onChanged();
          } // finally
          return this;
        }
        private int bitField0_;

        private long partitionSessionId_ ;
        /**
         * 
         * Identifier of partition session that is ready to be closed by server.
         * 
         *
         * int64 partition_session_id = 1;
         * @return The partitionSessionId.
         */
        @java.lang.Override
        public long getPartitionSessionId() {
          return partitionSessionId_;
        }
        /**
         * 
         * Identifier of partition session that is ready to be closed by server.
         * 
         *
         * int64 partition_session_id = 1;
         * @param value The partitionSessionId to set.
         * @return This builder for chaining.
         */
        public Builder setPartitionSessionId(long value) {

          partitionSessionId_ = value;
          bitField0_ |= 0x00000001;
          onChanged();
          return this;
        }
        /**
         * 
         * Identifier of partition session that is ready to be closed by server.
         * 
         *
         * int64 partition_session_id = 1;
         * @return This builder for chaining.
         */
        public Builder clearPartitionSessionId() {
          bitField0_ = (bitField0_ & ~0x00000001);
          partitionSessionId_ = 0L;
          onChanged();
          return this;
        }

        private boolean graceful_ ;
        /**
         * 
         * Flag of graceful stop.
         * If set, server will wait for response from client before giving this partition to other read session.
         * Server will not send more data from this partition.
         * Client can process all received data and wait for commit and only after send response.
         * If False then server gives partition for other session right now.
         * All further commits for this partition session has no effect. Server is not waiting for response.
         * 
         *
         * bool graceful = 2;
         * @return The graceful.
         */
        @java.lang.Override
        public boolean getGraceful() {
          return graceful_;
        }
        /**
         * 
         * Flag of graceful stop.
         * If set, server will wait for response from client before giving this partition to other read session.
         * Server will not send more data from this partition.
         * Client can process all received data and wait for commit and only after send response.
         * If False then server gives partition for other session right now.
         * All further commits for this partition session has no effect. Server is not waiting for response.
         * 
         *
         * bool graceful = 2;
         * @param value The graceful to set.
         * @return This builder for chaining.
         */
        public Builder setGraceful(boolean value) {

          graceful_ = value;
          bitField0_ |= 0x00000002;
          onChanged();
          return this;
        }
        /**
         * 
         * Flag of graceful stop.
         * If set, server will wait for response from client before giving this partition to other read session.
         * Server will not send more data from this partition.
         * Client can process all received data and wait for commit and only after send response.
         * If False then server gives partition for other session right now.
         * All further commits for this partition session has no effect. Server is not waiting for response.
         * 
         *
         * bool graceful = 2;
         * @return This builder for chaining.
         */
        public Builder clearGraceful() {
          bitField0_ = (bitField0_ & ~0x00000002);
          graceful_ = false;
          onChanged();
          return this;
        }

        private long committedOffset_ ;
        /**
         * 
         * Upper bound for committed offsets.
         * 
         *
         * int64 committed_offset = 3;
         * @return The committedOffset.
         */
        @java.lang.Override
        public long getCommittedOffset() {
          return committedOffset_;
        }
        /**
         * 
         * Upper bound for committed offsets.
         * 
         *
         * int64 committed_offset = 3;
         * @param value The committedOffset to set.
         * @return This builder for chaining.
         */
        public Builder setCommittedOffset(long value) {

          committedOffset_ = value;
          bitField0_ |= 0x00000004;
          onChanged();
          return this;
        }
        /**
         * 
         * Upper bound for committed offsets.
         * 
         *
         * int64 committed_offset = 3;
         * @return This builder for chaining.
         */
        public Builder clearCommittedOffset() {
          bitField0_ = (bitField0_ & ~0x00000004);
          committedOffset_ = 0L;
          onChanged();
          return this;
        }

        private long lastDirectReadId_ ;
        /**
         * 
         * Upper bound for read request identifiers, filled only when InitRequest.direct_read is true and graceful is true.
         * 
         *
         * int64 last_direct_read_id = 4;
         * @return The lastDirectReadId.
         */
        @java.lang.Override
        public long getLastDirectReadId() {
          return lastDirectReadId_;
        }
        /**
         * 
         * Upper bound for read request identifiers, filled only when InitRequest.direct_read is true and graceful is true.
         * 
         *
         * int64 last_direct_read_id = 4;
         * @param value The lastDirectReadId to set.
         * @return This builder for chaining.
         */
        public Builder setLastDirectReadId(long value) {

          lastDirectReadId_ = value;
          bitField0_ |= 0x00000008;
          onChanged();
          return this;
        }
        /**
         * 
         * Upper bound for read request identifiers, filled only when InitRequest.direct_read is true and graceful is true.
         * 
         *
         * int64 last_direct_read_id = 4;
         * @return This builder for chaining.
         */
        public Builder clearLastDirectReadId() {
          bitField0_ = (bitField0_ & ~0x00000008);
          lastDirectReadId_ = 0L;
          onChanged();
          return this;
        }
        @java.lang.Override
        public final Builder setUnknownFields(
            final com.google.protobuf.UnknownFieldSet unknownFields) {
          return super.setUnknownFields(unknownFields);
        }

        @java.lang.Override
        public final Builder mergeUnknownFields(
            final com.google.protobuf.UnknownFieldSet unknownFields) {
          return super.mergeUnknownFields(unknownFields);
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        // @@protoc_insertion_point(builder_scope:Ydb.Topic.StreamReadMessage.StopPartitionSessionRequest)
      }

      // @@protoc_insertion_point(class_scope:Ydb.Topic.StreamReadMessage.StopPartitionSessionRequest)
      private static final tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest DEFAULT_INSTANCE;
      static {
        DEFAULT_INSTANCE = new tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest();
      }

      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest getDefaultInstance() {
        return DEFAULT_INSTANCE;
      }

      private static final com.google.protobuf.Parser
          PARSER = new com.google.protobuf.AbstractParser() {
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        public StopPartitionSessionRequest parsePartialFrom(
            com.google.protobuf.CodedInputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws com.google.protobuf.InvalidProtocolBufferException {
          Builder builder = newBuilder();
          try {
            builder.mergeFrom(input, extensionRegistry);
          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
            throw e.setUnfinishedMessage(builder.buildPartial());
          } catch (com.google.protobuf.UninitializedMessageException e) {
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            throw new com.google.protobuf.InvalidProtocolBufferException(e)
                .setUnfinishedMessage(builder.buildPartial());
          }
          return builder.buildPartial();
        }
      };

      public static com.google.protobuf.Parser parser() {
        return PARSER;
      }

      @java.lang.Override
      public com.google.protobuf.Parser getParserForType() {
        return PARSER;
      }

      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest getDefaultInstanceForType() {
        return DEFAULT_INSTANCE;
      }

    }

    public interface StopPartitionSessionResponseOrBuilder extends
        // @@protoc_insertion_point(interface_extends:Ydb.Topic.StreamReadMessage.StopPartitionSessionResponse)
        com.google.protobuf.MessageOrBuilder {

      /**
       * 
       * Partition session identifier of partition session that is released by client.
       * 
       *
       * int64 partition_session_id = 1;
       * @return The partitionSessionId.
       */
      long getPartitionSessionId();

      /**
       * 
       * Flag of graceful stop, used only when InitRequest.direct_read is true
       * Client must pass this value unchanged from the StopPartitionSessionRequest.
       * Server can sent two StopPartitionSessionRequests, the first with graceful=true, the second with graceful=false. The client must answer both of them.
       * 
       *
       * bool graceful = 2;
       * @return The graceful.
       */
      boolean getGraceful();
    }
    /**
     * 
     * Signal for server that client finished working with this partition.
     * Must be sent only after corresponding StopPartitionSessionRequest from server.
     * Server will give this partition to other read session only after StopPartitionSessionResponse signal.
     * 
     *
     * Protobuf type {@code Ydb.Topic.StreamReadMessage.StopPartitionSessionResponse}
     */
    public static final class StopPartitionSessionResponse extends
        com.google.protobuf.GeneratedMessageV3 implements
        // @@protoc_insertion_point(message_implements:Ydb.Topic.StreamReadMessage.StopPartitionSessionResponse)
        StopPartitionSessionResponseOrBuilder {
    private static final long serialVersionUID = 0L;
      // Use StopPartitionSessionResponse.newBuilder() to construct.
      private StopPartitionSessionResponse(com.google.protobuf.GeneratedMessageV3.Builder builder) {
        super(builder);
      }
      private StopPartitionSessionResponse() {
      }

      @java.lang.Override
      @SuppressWarnings({"unused"})
      protected java.lang.Object newInstance(
          UnusedPrivateParameter unused) {
        return new StopPartitionSessionResponse();
      }

      public static final com.google.protobuf.Descriptors.Descriptor
          getDescriptor() {
        return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamReadMessage_StopPartitionSessionResponse_descriptor;
      }

      @java.lang.Override
      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
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        return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamReadMessage_StopPartitionSessionResponse_fieldAccessorTable
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      public static final int PARTITION_SESSION_ID_FIELD_NUMBER = 1;
      private long partitionSessionId_ = 0L;
      /**
       * 
       * Partition session identifier of partition session that is released by client.
       * 
       *
       * int64 partition_session_id = 1;
       * @return The partitionSessionId.
       */
      @java.lang.Override
      public long getPartitionSessionId() {
        return partitionSessionId_;
      }

      public static final int GRACEFUL_FIELD_NUMBER = 2;
      private boolean graceful_ = false;
      /**
       * 
       * Flag of graceful stop, used only when InitRequest.direct_read is true
       * Client must pass this value unchanged from the StopPartitionSessionRequest.
       * Server can sent two StopPartitionSessionRequests, the first with graceful=true, the second with graceful=false. The client must answer both of them.
       * 
       *
       * bool graceful = 2;
       * @return The graceful.
       */
      @java.lang.Override
      public boolean getGraceful() {
        return graceful_;
      }

      private byte memoizedIsInitialized = -1;
      @java.lang.Override
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        byte isInitialized = memoizedIsInitialized;
        if (isInitialized == 1) return true;
        if (isInitialized == 0) return false;

        memoizedIsInitialized = 1;
        return true;
      }

      @java.lang.Override
      public void writeTo(com.google.protobuf.CodedOutputStream output)
                          throws java.io.IOException {
        if (partitionSessionId_ != 0L) {
          output.writeInt64(1, partitionSessionId_);
        }
        if (graceful_ != false) {
          output.writeBool(2, graceful_);
        }
        getUnknownFields().writeTo(output);
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      @java.lang.Override
      public int getSerializedSize() {
        int size = memoizedSize;
        if (size != -1) return size;

        size = 0;
        if (partitionSessionId_ != 0L) {
          size += com.google.protobuf.CodedOutputStream
            .computeInt64Size(1, partitionSessionId_);
        }
        if (graceful_ != false) {
          size += com.google.protobuf.CodedOutputStream
            .computeBoolSize(2, graceful_);
        }
        size += getUnknownFields().getSerializedSize();
        memoizedSize = size;
        return size;
      }

      @java.lang.Override
      public boolean equals(final java.lang.Object obj) {
        if (obj == this) {
         return true;
        }
        if (!(obj instanceof tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionResponse)) {
          return super.equals(obj);
        }
        tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionResponse other = (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionResponse) obj;

        if (getPartitionSessionId()
            != other.getPartitionSessionId()) return false;
        if (getGraceful()
            != other.getGraceful()) return false;
        if (!getUnknownFields().equals(other.getUnknownFields())) return false;
        return true;
      }

      @java.lang.Override
      public int hashCode() {
        if (memoizedHashCode != 0) {
          return memoizedHashCode;
        }
        int hash = 41;
        hash = (19 * hash) + getDescriptor().hashCode();
        hash = (37 * hash) + PARTITION_SESSION_ID_FIELD_NUMBER;
        hash = (53 * hash) + com.google.protobuf.Internal.hashLong(
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        return PARSER.parseFrom(data);
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      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionResponse parseFrom(
          java.nio.ByteBuffer data,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
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      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionResponse parseFrom(
          com.google.protobuf.ByteString data)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionResponse parseFrom(
          com.google.protobuf.ByteString data,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data, extensionRegistry);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionResponse parseFrom(byte[] data)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionResponse parseFrom(
          byte[] data,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data, extensionRegistry);
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        return com.google.protobuf.GeneratedMessageV3
            .parseWithIOException(PARSER, input, extensionRegistry);
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      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionResponse parseDelimitedFrom(java.io.InputStream input)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseDelimitedWithIOException(PARSER, input);
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      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionResponse parseDelimitedFrom(
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          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
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          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseWithIOException(PARSER, input);
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      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionResponse parseFrom(
          com.google.protobuf.CodedInputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseWithIOException(PARSER, input, extensionRegistry);
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      @java.lang.Override
      public Builder newBuilderForType() { return newBuilder(); }
      public static Builder newBuilder() {
        return DEFAULT_INSTANCE.toBuilder();
      }
      public static Builder newBuilder(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionResponse prototype) {
        return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
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      @java.lang.Override
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        return this == DEFAULT_INSTANCE
            ? new Builder() : new Builder().mergeFrom(this);
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      @java.lang.Override
      protected Builder newBuilderForType(
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        return builder;
      }
      /**
       * 
       * Signal for server that client finished working with this partition.
       * Must be sent only after corresponding StopPartitionSessionRequest from server.
       * Server will give this partition to other read session only after StopPartitionSessionResponse signal.
       * 
       *
       * Protobuf type {@code Ydb.Topic.StreamReadMessage.StopPartitionSessionResponse}
       */
      public static final class Builder extends
          com.google.protobuf.GeneratedMessageV3.Builder implements
          // @@protoc_insertion_point(builder_implements:Ydb.Topic.StreamReadMessage.StopPartitionSessionResponse)
          tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionResponseOrBuilder {
        public static final com.google.protobuf.Descriptors.Descriptor
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        // Construct using tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionResponse.newBuilder()
        private Builder() {

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        private Builder(
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        @java.lang.Override
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          partitionSessionId_ = 0L;
          graceful_ = false;
          return this;
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        @java.lang.Override
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        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionResponse getDefaultInstanceForType() {
          return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionResponse.getDefaultInstance();
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        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionResponse build() {
          tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionResponse result = buildPartial();
          if (!result.isInitialized()) {
            throw newUninitializedMessageException(result);
          }
          return result;
        }

        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionResponse buildPartial() {
          tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionResponse result = new tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionResponse(this);
          if (bitField0_ != 0) { buildPartial0(result); }
          onBuilt();
          return result;
        }

        private void buildPartial0(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionResponse result) {
          int from_bitField0_ = bitField0_;
          if (((from_bitField0_ & 0x00000001) != 0)) {
            result.partitionSessionId_ = partitionSessionId_;
          }
          if (((from_bitField0_ & 0x00000002) != 0)) {
            result.graceful_ = graceful_;
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        @java.lang.Override
        public Builder clone() {
          return super.clone();
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            com.google.protobuf.Descriptors.FieldDescriptor field,
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          return super.setField(field, value);
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        @java.lang.Override
        public Builder clearField(
            com.google.protobuf.Descriptors.FieldDescriptor field) {
          return super.clearField(field);
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        @java.lang.Override
        public Builder clearOneof(
            com.google.protobuf.Descriptors.OneofDescriptor oneof) {
          return super.clearOneof(oneof);
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        @java.lang.Override
        public Builder setRepeatedField(
            com.google.protobuf.Descriptors.FieldDescriptor field,
            int index, java.lang.Object value) {
          return super.setRepeatedField(field, index, value);
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        @java.lang.Override
        public Builder addRepeatedField(
            com.google.protobuf.Descriptors.FieldDescriptor field,
            java.lang.Object value) {
          return super.addRepeatedField(field, value);
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        @java.lang.Override
        public Builder mergeFrom(com.google.protobuf.Message other) {
          if (other instanceof tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionResponse) {
            return mergeFrom((tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionResponse)other);
          } else {
            super.mergeFrom(other);
            return this;
          }
        }

        public Builder mergeFrom(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionResponse other) {
          if (other == tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionResponse.getDefaultInstance()) return this;
          if (other.getPartitionSessionId() != 0L) {
            setPartitionSessionId(other.getPartitionSessionId());
          }
          if (other.getGraceful() != false) {
            setGraceful(other.getGraceful());
          }
          this.mergeUnknownFields(other.getUnknownFields());
          onChanged();
          return this;
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        @java.lang.Override
        public final boolean isInitialized() {
          return true;
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        @java.lang.Override
        public Builder mergeFrom(
            com.google.protobuf.CodedInputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws java.io.IOException {
          if (extensionRegistry == null) {
            throw new java.lang.NullPointerException();
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          try {
            boolean done = false;
            while (!done) {
              int tag = input.readTag();
              switch (tag) {
                case 0:
                  done = true;
                  break;
                case 8: {
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                  break;
                } // case 8
                case 16: {
                  graceful_ = input.readBool();
                  bitField0_ |= 0x00000002;
                  break;
                } // case 16
                default: {
                  if (!super.parseUnknownField(input, extensionRegistry, tag)) {
                    done = true; // was an endgroup tag
                  }
                  break;
                } // default:
              } // switch (tag)
            } // while (!done)
          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
            throw e.unwrapIOException();
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            onChanged();
          } // finally
          return this;
        }
        private int bitField0_;

        private long partitionSessionId_ ;
        /**
         * 
         * Partition session identifier of partition session that is released by client.
         * 
         *
         * int64 partition_session_id = 1;
         * @return The partitionSessionId.
         */
        @java.lang.Override
        public long getPartitionSessionId() {
          return partitionSessionId_;
        }
        /**
         * 
         * Partition session identifier of partition session that is released by client.
         * 
         *
         * int64 partition_session_id = 1;
         * @param value The partitionSessionId to set.
         * @return This builder for chaining.
         */
        public Builder setPartitionSessionId(long value) {

          partitionSessionId_ = value;
          bitField0_ |= 0x00000001;
          onChanged();
          return this;
        }
        /**
         * 
         * Partition session identifier of partition session that is released by client.
         * 
         *
         * int64 partition_session_id = 1;
         * @return This builder for chaining.
         */
        public Builder clearPartitionSessionId() {
          bitField0_ = (bitField0_ & ~0x00000001);
          partitionSessionId_ = 0L;
          onChanged();
          return this;
        }

        private boolean graceful_ ;
        /**
         * 
         * Flag of graceful stop, used only when InitRequest.direct_read is true
         * Client must pass this value unchanged from the StopPartitionSessionRequest.
         * Server can sent two StopPartitionSessionRequests, the first with graceful=true, the second with graceful=false. The client must answer both of them.
         * 
         *
         * bool graceful = 2;
         * @return The graceful.
         */
        @java.lang.Override
        public boolean getGraceful() {
          return graceful_;
        }
        /**
         * 
         * Flag of graceful stop, used only when InitRequest.direct_read is true
         * Client must pass this value unchanged from the StopPartitionSessionRequest.
         * Server can sent two StopPartitionSessionRequests, the first with graceful=true, the second with graceful=false. The client must answer both of them.
         * 
         *
         * bool graceful = 2;
         * @param value The graceful to set.
         * @return This builder for chaining.
         */
        public Builder setGraceful(boolean value) {

          graceful_ = value;
          bitField0_ |= 0x00000002;
          onChanged();
          return this;
        }
        /**
         * 
         * Flag of graceful stop, used only when InitRequest.direct_read is true
         * Client must pass this value unchanged from the StopPartitionSessionRequest.
         * Server can sent two StopPartitionSessionRequests, the first with graceful=true, the second with graceful=false. The client must answer both of them.
         * 
         *
         * bool graceful = 2;
         * @return This builder for chaining.
         */
        public Builder clearGraceful() {
          bitField0_ = (bitField0_ & ~0x00000002);
          graceful_ = false;
          onChanged();
          return this;
        }
        @java.lang.Override
        public final Builder setUnknownFields(
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          return super.setUnknownFields(unknownFields);
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        @java.lang.Override
        public final Builder mergeUnknownFields(
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          return super.mergeUnknownFields(unknownFields);
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        // @@protoc_insertion_point(builder_scope:Ydb.Topic.StreamReadMessage.StopPartitionSessionResponse)
      }

      // @@protoc_insertion_point(class_scope:Ydb.Topic.StreamReadMessage.StopPartitionSessionResponse)
      private static final tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionResponse DEFAULT_INSTANCE;
      static {
        DEFAULT_INSTANCE = new tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionResponse();
      }

      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionResponse getDefaultInstance() {
        return DEFAULT_INSTANCE;
      }

      private static final com.google.protobuf.Parser
          PARSER = new com.google.protobuf.AbstractParser() {
        @java.lang.Override
        public StopPartitionSessionResponse parsePartialFrom(
            com.google.protobuf.CodedInputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws com.google.protobuf.InvalidProtocolBufferException {
          Builder builder = newBuilder();
          try {
            builder.mergeFrom(input, extensionRegistry);
          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
            throw e.setUnfinishedMessage(builder.buildPartial());
          } catch (com.google.protobuf.UninitializedMessageException e) {
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            throw new com.google.protobuf.InvalidProtocolBufferException(e)
                .setUnfinishedMessage(builder.buildPartial());
          }
          return builder.buildPartial();
        }
      };

      public static com.google.protobuf.Parser parser() {
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      public com.google.protobuf.Parser getParserForType() {
        return PARSER;
      }

      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionResponse getDefaultInstanceForType() {
        return DEFAULT_INSTANCE;
      }

    }

    public interface UpdatePartitionSessionOrBuilder extends
        // @@protoc_insertion_point(interface_extends:Ydb.Topic.StreamReadMessage.UpdatePartitionSession)
        com.google.protobuf.MessageOrBuilder {

      /**
       * 
       * Partition session identifier.
       * 
       *
       * int64 partition_session_id = 1;
       * @return The partitionSessionId.
       */
      long getPartitionSessionId();

      /**
       * 
       * Partition location, filled only when InitRequest.direct_read is true.
       * 
       *
       * .Ydb.Topic.PartitionLocation partition_location = 2;
       * @return Whether the partitionLocation field is set.
       */
      boolean hasPartitionLocation();
      /**
       * 
       * Partition location, filled only when InitRequest.direct_read is true.
       * 
       *
       * .Ydb.Topic.PartitionLocation partition_location = 2;
       * @return The partitionLocation.
       */
      tech.ydb.proto.topic.YdbTopic.PartitionLocation getPartitionLocation();
      /**
       * 
       * Partition location, filled only when InitRequest.direct_read is true.
       * 
       *
       * .Ydb.Topic.PartitionLocation partition_location = 2;
       */
      tech.ydb.proto.topic.YdbTopic.PartitionLocationOrBuilder getPartitionLocationOrBuilder();
    }
    /**
     * 
     * Command from server to notify about a partition session update.
     * Client should not send a response to the command.
     * 
     *
     * Protobuf type {@code Ydb.Topic.StreamReadMessage.UpdatePartitionSession}
     */
    public static final class UpdatePartitionSession extends
        com.google.protobuf.GeneratedMessageV3 implements
        // @@protoc_insertion_point(message_implements:Ydb.Topic.StreamReadMessage.UpdatePartitionSession)
        UpdatePartitionSessionOrBuilder {
    private static final long serialVersionUID = 0L;
      // Use UpdatePartitionSession.newBuilder() to construct.
      private UpdatePartitionSession(com.google.protobuf.GeneratedMessageV3.Builder builder) {
        super(builder);
      }
      private UpdatePartitionSession() {
      }

      @java.lang.Override
      @SuppressWarnings({"unused"})
      protected java.lang.Object newInstance(
          UnusedPrivateParameter unused) {
        return new UpdatePartitionSession();
      }

      public static final com.google.protobuf.Descriptors.Descriptor
          getDescriptor() {
        return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamReadMessage_UpdatePartitionSession_descriptor;
      }

      @java.lang.Override
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      }

      private int bitField0_;
      public static final int PARTITION_SESSION_ID_FIELD_NUMBER = 1;
      private long partitionSessionId_ = 0L;
      /**
       * 
       * Partition session identifier.
       * 
       *
       * int64 partition_session_id = 1;
       * @return The partitionSessionId.
       */
      @java.lang.Override
      public long getPartitionSessionId() {
        return partitionSessionId_;
      }

      public static final int PARTITION_LOCATION_FIELD_NUMBER = 2;
      private tech.ydb.proto.topic.YdbTopic.PartitionLocation partitionLocation_;
      /**
       * 
       * Partition location, filled only when InitRequest.direct_read is true.
       * 
       *
       * .Ydb.Topic.PartitionLocation partition_location = 2;
       * @return Whether the partitionLocation field is set.
       */
      @java.lang.Override
      public boolean hasPartitionLocation() {
        return ((bitField0_ & 0x00000001) != 0);
      }
      /**
       * 
       * Partition location, filled only when InitRequest.direct_read is true.
       * 
       *
       * .Ydb.Topic.PartitionLocation partition_location = 2;
       * @return The partitionLocation.
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.PartitionLocation getPartitionLocation() {
        return partitionLocation_ == null ? tech.ydb.proto.topic.YdbTopic.PartitionLocation.getDefaultInstance() : partitionLocation_;
      }
      /**
       * 
       * Partition location, filled only when InitRequest.direct_read is true.
       * 
       *
       * .Ydb.Topic.PartitionLocation partition_location = 2;
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.PartitionLocationOrBuilder getPartitionLocationOrBuilder() {
        return partitionLocation_ == null ? tech.ydb.proto.topic.YdbTopic.PartitionLocation.getDefaultInstance() : partitionLocation_;
      }

      private byte memoizedIsInitialized = -1;
      @java.lang.Override
      public final boolean isInitialized() {
        byte isInitialized = memoizedIsInitialized;
        if (isInitialized == 1) return true;
        if (isInitialized == 0) return false;

        memoizedIsInitialized = 1;
        return true;
      }

      @java.lang.Override
      public void writeTo(com.google.protobuf.CodedOutputStream output)
                          throws java.io.IOException {
        if (partitionSessionId_ != 0L) {
          output.writeInt64(1, partitionSessionId_);
        }
        if (((bitField0_ & 0x00000001) != 0)) {
          output.writeMessage(2, getPartitionLocation());
        }
        getUnknownFields().writeTo(output);
      }

      @java.lang.Override
      public int getSerializedSize() {
        int size = memoizedSize;
        if (size != -1) return size;

        size = 0;
        if (partitionSessionId_ != 0L) {
          size += com.google.protobuf.CodedOutputStream
            .computeInt64Size(1, partitionSessionId_);
        }
        if (((bitField0_ & 0x00000001) != 0)) {
          size += com.google.protobuf.CodedOutputStream
            .computeMessageSize(2, getPartitionLocation());
        }
        size += getUnknownFields().getSerializedSize();
        memoizedSize = size;
        return size;
      }

      @java.lang.Override
      public boolean equals(final java.lang.Object obj) {
        if (obj == this) {
         return true;
        }
        if (!(obj instanceof tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSession)) {
          return super.equals(obj);
        }
        tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSession other = (tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSession) obj;

        if (getPartitionSessionId()
            != other.getPartitionSessionId()) return false;
        if (hasPartitionLocation() != other.hasPartitionLocation()) return false;
        if (hasPartitionLocation()) {
          if (!getPartitionLocation()
              .equals(other.getPartitionLocation())) return false;
        }
        if (!getUnknownFields().equals(other.getUnknownFields())) return false;
        return true;
      }

      @java.lang.Override
      public int hashCode() {
        if (memoizedHashCode != 0) {
          return memoizedHashCode;
        }
        int hash = 41;
        hash = (19 * hash) + getDescriptor().hashCode();
        hash = (37 * hash) + PARTITION_SESSION_ID_FIELD_NUMBER;
        hash = (53 * hash) + com.google.protobuf.Internal.hashLong(
            getPartitionSessionId());
        if (hasPartitionLocation()) {
          hash = (37 * hash) + PARTITION_LOCATION_FIELD_NUMBER;
          hash = (53 * hash) + getPartitionLocation().hashCode();
        }
        hash = (29 * hash) + getUnknownFields().hashCode();
        memoizedHashCode = hash;
        return hash;
      }

      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSession parseFrom(
          java.nio.ByteBuffer data)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSession parseFrom(
          java.nio.ByteBuffer data,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data, extensionRegistry);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSession parseFrom(
          com.google.protobuf.ByteString data)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSession parseFrom(
          com.google.protobuf.ByteString data,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data, extensionRegistry);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSession parseFrom(byte[] data)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSession parseFrom(
          byte[] data,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data, extensionRegistry);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSession parseFrom(java.io.InputStream input)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseWithIOException(PARSER, input);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSession parseFrom(
          java.io.InputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseWithIOException(PARSER, input, extensionRegistry);
      }

      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSession parseDelimitedFrom(java.io.InputStream input)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseDelimitedWithIOException(PARSER, input);
      }

      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSession parseDelimitedFrom(
          java.io.InputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSession parseFrom(
          com.google.protobuf.CodedInputStream input)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseWithIOException(PARSER, input);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSession parseFrom(
          com.google.protobuf.CodedInputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseWithIOException(PARSER, input, extensionRegistry);
      }

      @java.lang.Override
      public Builder newBuilderForType() { return newBuilder(); }
      public static Builder newBuilder() {
        return DEFAULT_INSTANCE.toBuilder();
      }
      public static Builder newBuilder(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSession prototype) {
        return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
      }
      @java.lang.Override
      public Builder toBuilder() {
        return this == DEFAULT_INSTANCE
            ? new Builder() : new Builder().mergeFrom(this);
      }

      @java.lang.Override
      protected Builder newBuilderForType(
          com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
        Builder builder = new Builder(parent);
        return builder;
      }
      /**
       * 
       * Command from server to notify about a partition session update.
       * Client should not send a response to the command.
       * 
       *
       * Protobuf type {@code Ydb.Topic.StreamReadMessage.UpdatePartitionSession}
       */
      public static final class Builder extends
          com.google.protobuf.GeneratedMessageV3.Builder implements
          // @@protoc_insertion_point(builder_implements:Ydb.Topic.StreamReadMessage.UpdatePartitionSession)
          tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSessionOrBuilder {
        public static final com.google.protobuf.Descriptors.Descriptor
            getDescriptor() {
          return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamReadMessage_UpdatePartitionSession_descriptor;
        }

        @java.lang.Override
        protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
            internalGetFieldAccessorTable() {
          return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamReadMessage_UpdatePartitionSession_fieldAccessorTable
              .ensureFieldAccessorsInitialized(
                  tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSession.class, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSession.Builder.class);
        }

        // Construct using tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSession.newBuilder()
        private Builder() {
          maybeForceBuilderInitialization();
        }

        private Builder(
            com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
          super(parent);
          maybeForceBuilderInitialization();
        }
        private void maybeForceBuilderInitialization() {
          if (com.google.protobuf.GeneratedMessageV3
                  .alwaysUseFieldBuilders) {
            getPartitionLocationFieldBuilder();
          }
        }
        @java.lang.Override
        public Builder clear() {
          super.clear();
          bitField0_ = 0;
          partitionSessionId_ = 0L;
          partitionLocation_ = null;
          if (partitionLocationBuilder_ != null) {
            partitionLocationBuilder_.dispose();
            partitionLocationBuilder_ = null;
          }
          return this;
        }

        @java.lang.Override
        public com.google.protobuf.Descriptors.Descriptor
            getDescriptorForType() {
          return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamReadMessage_UpdatePartitionSession_descriptor;
        }

        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSession getDefaultInstanceForType() {
          return tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSession.getDefaultInstance();
        }

        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSession build() {
          tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSession result = buildPartial();
          if (!result.isInitialized()) {
            throw newUninitializedMessageException(result);
          }
          return result;
        }

        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSession buildPartial() {
          tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSession result = new tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSession(this);
          if (bitField0_ != 0) { buildPartial0(result); }
          onBuilt();
          return result;
        }

        private void buildPartial0(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSession result) {
          int from_bitField0_ = bitField0_;
          if (((from_bitField0_ & 0x00000001) != 0)) {
            result.partitionSessionId_ = partitionSessionId_;
          }
          int to_bitField0_ = 0;
          if (((from_bitField0_ & 0x00000002) != 0)) {
            result.partitionLocation_ = partitionLocationBuilder_ == null
                ? partitionLocation_
                : partitionLocationBuilder_.build();
            to_bitField0_ |= 0x00000001;
          }
          result.bitField0_ |= to_bitField0_;
        }

        @java.lang.Override
        public Builder clone() {
          return super.clone();
        }
        @java.lang.Override
        public Builder setField(
            com.google.protobuf.Descriptors.FieldDescriptor field,
            java.lang.Object value) {
          return super.setField(field, value);
        }
        @java.lang.Override
        public Builder clearField(
            com.google.protobuf.Descriptors.FieldDescriptor field) {
          return super.clearField(field);
        }
        @java.lang.Override
        public Builder clearOneof(
            com.google.protobuf.Descriptors.OneofDescriptor oneof) {
          return super.clearOneof(oneof);
        }
        @java.lang.Override
        public Builder setRepeatedField(
            com.google.protobuf.Descriptors.FieldDescriptor field,
            int index, java.lang.Object value) {
          return super.setRepeatedField(field, index, value);
        }
        @java.lang.Override
        public Builder addRepeatedField(
            com.google.protobuf.Descriptors.FieldDescriptor field,
            java.lang.Object value) {
          return super.addRepeatedField(field, value);
        }
        @java.lang.Override
        public Builder mergeFrom(com.google.protobuf.Message other) {
          if (other instanceof tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSession) {
            return mergeFrom((tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSession)other);
          } else {
            super.mergeFrom(other);
            return this;
          }
        }

        public Builder mergeFrom(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSession other) {
          if (other == tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSession.getDefaultInstance()) return this;
          if (other.getPartitionSessionId() != 0L) {
            setPartitionSessionId(other.getPartitionSessionId());
          }
          if (other.hasPartitionLocation()) {
            mergePartitionLocation(other.getPartitionLocation());
          }
          this.mergeUnknownFields(other.getUnknownFields());
          onChanged();
          return this;
        }

        @java.lang.Override
        public final boolean isInitialized() {
          return true;
        }

        @java.lang.Override
        public Builder mergeFrom(
            com.google.protobuf.CodedInputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws java.io.IOException {
          if (extensionRegistry == null) {
            throw new java.lang.NullPointerException();
          }
          try {
            boolean done = false;
            while (!done) {
              int tag = input.readTag();
              switch (tag) {
                case 0:
                  done = true;
                  break;
                case 8: {
                  partitionSessionId_ = input.readInt64();
                  bitField0_ |= 0x00000001;
                  break;
                } // case 8
                case 18: {
                  input.readMessage(
                      getPartitionLocationFieldBuilder().getBuilder(),
                      extensionRegistry);
                  bitField0_ |= 0x00000002;
                  break;
                } // case 18
                default: {
                  if (!super.parseUnknownField(input, extensionRegistry, tag)) {
                    done = true; // was an endgroup tag
                  }
                  break;
                } // default:
              } // switch (tag)
            } // while (!done)
          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
            throw e.unwrapIOException();
          } finally {
            onChanged();
          } // finally
          return this;
        }
        private int bitField0_;

        private long partitionSessionId_ ;
        /**
         * 
         * Partition session identifier.
         * 
         *
         * int64 partition_session_id = 1;
         * @return The partitionSessionId.
         */
        @java.lang.Override
        public long getPartitionSessionId() {
          return partitionSessionId_;
        }
        /**
         * 
         * Partition session identifier.
         * 
         *
         * int64 partition_session_id = 1;
         * @param value The partitionSessionId to set.
         * @return This builder for chaining.
         */
        public Builder setPartitionSessionId(long value) {

          partitionSessionId_ = value;
          bitField0_ |= 0x00000001;
          onChanged();
          return this;
        }
        /**
         * 
         * Partition session identifier.
         * 
         *
         * int64 partition_session_id = 1;
         * @return This builder for chaining.
         */
        public Builder clearPartitionSessionId() {
          bitField0_ = (bitField0_ & ~0x00000001);
          partitionSessionId_ = 0L;
          onChanged();
          return this;
        }

        private tech.ydb.proto.topic.YdbTopic.PartitionLocation partitionLocation_;
        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.PartitionLocation, tech.ydb.proto.topic.YdbTopic.PartitionLocation.Builder, tech.ydb.proto.topic.YdbTopic.PartitionLocationOrBuilder> partitionLocationBuilder_;
        /**
         * 
         * Partition location, filled only when InitRequest.direct_read is true.
         * 
         *
         * .Ydb.Topic.PartitionLocation partition_location = 2;
         * @return Whether the partitionLocation field is set.
         */
        public boolean hasPartitionLocation() {
          return ((bitField0_ & 0x00000002) != 0);
        }
        /**
         * 
         * Partition location, filled only when InitRequest.direct_read is true.
         * 
         *
         * .Ydb.Topic.PartitionLocation partition_location = 2;
         * @return The partitionLocation.
         */
        public tech.ydb.proto.topic.YdbTopic.PartitionLocation getPartitionLocation() {
          if (partitionLocationBuilder_ == null) {
            return partitionLocation_ == null ? tech.ydb.proto.topic.YdbTopic.PartitionLocation.getDefaultInstance() : partitionLocation_;
          } else {
            return partitionLocationBuilder_.getMessage();
          }
        }
        /**
         * 
         * Partition location, filled only when InitRequest.direct_read is true.
         * 
         *
         * .Ydb.Topic.PartitionLocation partition_location = 2;
         */
        public Builder setPartitionLocation(tech.ydb.proto.topic.YdbTopic.PartitionLocation value) {
          if (partitionLocationBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            partitionLocation_ = value;
          } else {
            partitionLocationBuilder_.setMessage(value);
          }
          bitField0_ |= 0x00000002;
          onChanged();
          return this;
        }
        /**
         * 
         * Partition location, filled only when InitRequest.direct_read is true.
         * 
         *
         * .Ydb.Topic.PartitionLocation partition_location = 2;
         */
        public Builder setPartitionLocation(
            tech.ydb.proto.topic.YdbTopic.PartitionLocation.Builder builderForValue) {
          if (partitionLocationBuilder_ == null) {
            partitionLocation_ = builderForValue.build();
          } else {
            partitionLocationBuilder_.setMessage(builderForValue.build());
          }
          bitField0_ |= 0x00000002;
          onChanged();
          return this;
        }
        /**
         * 
         * Partition location, filled only when InitRequest.direct_read is true.
         * 
         *
         * .Ydb.Topic.PartitionLocation partition_location = 2;
         */
        public Builder mergePartitionLocation(tech.ydb.proto.topic.YdbTopic.PartitionLocation value) {
          if (partitionLocationBuilder_ == null) {
            if (((bitField0_ & 0x00000002) != 0) &&
              partitionLocation_ != null &&
              partitionLocation_ != tech.ydb.proto.topic.YdbTopic.PartitionLocation.getDefaultInstance()) {
              getPartitionLocationBuilder().mergeFrom(value);
            } else {
              partitionLocation_ = value;
            }
          } else {
            partitionLocationBuilder_.mergeFrom(value);
          }
          if (partitionLocation_ != null) {
            bitField0_ |= 0x00000002;
            onChanged();
          }
          return this;
        }
        /**
         * 
         * Partition location, filled only when InitRequest.direct_read is true.
         * 
         *
         * .Ydb.Topic.PartitionLocation partition_location = 2;
         */
        public Builder clearPartitionLocation() {
          bitField0_ = (bitField0_ & ~0x00000002);
          partitionLocation_ = null;
          if (partitionLocationBuilder_ != null) {
            partitionLocationBuilder_.dispose();
            partitionLocationBuilder_ = null;
          }
          onChanged();
          return this;
        }
        /**
         * 
         * Partition location, filled only when InitRequest.direct_read is true.
         * 
         *
         * .Ydb.Topic.PartitionLocation partition_location = 2;
         */
        public tech.ydb.proto.topic.YdbTopic.PartitionLocation.Builder getPartitionLocationBuilder() {
          bitField0_ |= 0x00000002;
          onChanged();
          return getPartitionLocationFieldBuilder().getBuilder();
        }
        /**
         * 
         * Partition location, filled only when InitRequest.direct_read is true.
         * 
         *
         * .Ydb.Topic.PartitionLocation partition_location = 2;
         */
        public tech.ydb.proto.topic.YdbTopic.PartitionLocationOrBuilder getPartitionLocationOrBuilder() {
          if (partitionLocationBuilder_ != null) {
            return partitionLocationBuilder_.getMessageOrBuilder();
          } else {
            return partitionLocation_ == null ?
                tech.ydb.proto.topic.YdbTopic.PartitionLocation.getDefaultInstance() : partitionLocation_;
          }
        }
        /**
         * 
         * Partition location, filled only when InitRequest.direct_read is true.
         * 
         *
         * .Ydb.Topic.PartitionLocation partition_location = 2;
         */
        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.PartitionLocation, tech.ydb.proto.topic.YdbTopic.PartitionLocation.Builder, tech.ydb.proto.topic.YdbTopic.PartitionLocationOrBuilder> 
            getPartitionLocationFieldBuilder() {
          if (partitionLocationBuilder_ == null) {
            partitionLocationBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
                tech.ydb.proto.topic.YdbTopic.PartitionLocation, tech.ydb.proto.topic.YdbTopic.PartitionLocation.Builder, tech.ydb.proto.topic.YdbTopic.PartitionLocationOrBuilder>(
                    getPartitionLocation(),
                    getParentForChildren(),
                    isClean());
            partitionLocation_ = null;
          }
          return partitionLocationBuilder_;
        }
        @java.lang.Override
        public final Builder setUnknownFields(
            final com.google.protobuf.UnknownFieldSet unknownFields) {
          return super.setUnknownFields(unknownFields);
        }

        @java.lang.Override
        public final Builder mergeUnknownFields(
            final com.google.protobuf.UnknownFieldSet unknownFields) {
          return super.mergeUnknownFields(unknownFields);
        }


        // @@protoc_insertion_point(builder_scope:Ydb.Topic.StreamReadMessage.UpdatePartitionSession)
      }

      // @@protoc_insertion_point(class_scope:Ydb.Topic.StreamReadMessage.UpdatePartitionSession)
      private static final tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSession DEFAULT_INSTANCE;
      static {
        DEFAULT_INSTANCE = new tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSession();
      }

      public static tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSession getDefaultInstance() {
        return DEFAULT_INSTANCE;
      }

      private static final com.google.protobuf.Parser
          PARSER = new com.google.protobuf.AbstractParser() {
        @java.lang.Override
        public UpdatePartitionSession parsePartialFrom(
            com.google.protobuf.CodedInputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws com.google.protobuf.InvalidProtocolBufferException {
          Builder builder = newBuilder();
          try {
            builder.mergeFrom(input, extensionRegistry);
          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
            throw e.setUnfinishedMessage(builder.buildPartial());
          } catch (com.google.protobuf.UninitializedMessageException e) {
            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
          } catch (java.io.IOException e) {
            throw new com.google.protobuf.InvalidProtocolBufferException(e)
                .setUnfinishedMessage(builder.buildPartial());
          }
          return builder.buildPartial();
        }
      };

      public static com.google.protobuf.Parser parser() {
        return PARSER;
      }

      @java.lang.Override
      public com.google.protobuf.Parser getParserForType() {
        return PARSER;
      }

      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.UpdatePartitionSession getDefaultInstanceForType() {
        return DEFAULT_INSTANCE;
      }

    }

    public interface DirectReadAckOrBuilder extends
        // @@protoc_insertion_point(interface_extends:Ydb.Topic.StreamReadMessage.DirectReadAck)
        com.google.protobuf.MessageOrBuilder {

      /**
       * 
       * Partition session identifier.
       * 
       *
       * int64 partition_session_id = 1;
       * @return The partitionSessionId.
       */
      long getPartitionSessionId();

      /**
       * 
       * Identifier of the successfully completed read request.
       * 
       *
       * int64 direct_read_id = 2;
       * @return The directReadId.
       */
      long getDirectReadId();
    }
    /**
     * 
     * Signal for server that client has finished direct reading.
     * Server should not send a response to the command.
     * 
     *
     * Protobuf type {@code Ydb.Topic.StreamReadMessage.DirectReadAck}
     */
    public static final class DirectReadAck extends
        com.google.protobuf.GeneratedMessageV3 implements
        // @@protoc_insertion_point(message_implements:Ydb.Topic.StreamReadMessage.DirectReadAck)
        DirectReadAckOrBuilder {
    private static final long serialVersionUID = 0L;
      // Use DirectReadAck.newBuilder() to construct.
      private DirectReadAck(com.google.protobuf.GeneratedMessageV3.Builder builder) {
        super(builder);
      }
      private DirectReadAck() {
      }

      @java.lang.Override
      @SuppressWarnings({"unused"})
      protected java.lang.Object newInstance(
          UnusedPrivateParameter unused) {
        return new DirectReadAck();
      }

      public static final com.google.protobuf.Descriptors.Descriptor
          getDescriptor() {
        return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamReadMessage_DirectReadAck_descriptor;
      }

      @java.lang.Override
      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
          internalGetFieldAccessorTable() {
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    public tech.ydb.proto.topic.YdbTopic.StreamReadMessage getDefaultInstanceForType() {
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  /**
   * 
   * Messages for bidirectional streaming rpc StreamDirectRead
   * 
   *
   * Protobuf type {@code Ydb.Topic.StreamDirectReadMessage}
   */
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      /**
       * .Ydb.Topic.StreamDirectReadMessage.StartDirectReadPartitionSession start_direct_read_partition_session = 2;
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       */
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       * .Ydb.Topic.StreamDirectReadMessage.StartDirectReadPartitionSession start_direct_read_partition_session = 2;
       * @return The startDirectReadPartitionSession.
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       */
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      /**
       * .Ydb.Topic.UpdateTokenRequest update_token_request = 3;
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       * .Ydb.Topic.UpdateTokenRequest update_token_request = 3;
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     * 
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     *     StartDirectReadPartitionSession - command from client to create and start a direct read partition session.
     *     UpdateTokenRequest - request to update auth token
     * 
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       * @return Whether the startDirectReadPartitionSession field is set.
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       *     InitDirectRead - command from client to create and start a direct read session.
       *     StartDirectReadPartitionSession - command from client to create and start a direct read partition session.
       *     UpdateTokenRequest - request to update auth token
       * 
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        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.FromClient getDefaultInstanceForType() {
          return tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.FromClient.getDefaultInstance();
        }

        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.FromClient build() {
          tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.FromClient result = buildPartial();
          if (!result.isInitialized()) {
            throw newUninitializedMessageException(result);
          }
          return result;
        }

        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.FromClient buildPartial() {
          tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.FromClient result = new tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.FromClient(this);
          if (bitField0_ != 0) { buildPartial0(result); }
          buildPartialOneofs(result);
          onBuilt();
          return result;
        }

        private void buildPartial0(tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.FromClient result) {
          int from_bitField0_ = bitField0_;
        }

        private void buildPartialOneofs(tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.FromClient result) {
          result.clientMessageCase_ = clientMessageCase_;
          result.clientMessage_ = this.clientMessage_;
          if (clientMessageCase_ == 1 &&
              initDirectReadBuilder_ != null) {
            result.clientMessage_ = initDirectReadBuilder_.build();
          }
          if (clientMessageCase_ == 2 &&
              startDirectReadPartitionSessionBuilder_ != null) {
            result.clientMessage_ = startDirectReadPartitionSessionBuilder_.build();
          }
          if (clientMessageCase_ == 3 &&
              updateTokenRequestBuilder_ != null) {
            result.clientMessage_ = updateTokenRequestBuilder_.build();
          }
        }

        @java.lang.Override
        public Builder clone() {
          return super.clone();
        }
        @java.lang.Override
        public Builder setField(
            com.google.protobuf.Descriptors.FieldDescriptor field,
            java.lang.Object value) {
          return super.setField(field, value);
        }
        @java.lang.Override
        public Builder clearField(
            com.google.protobuf.Descriptors.FieldDescriptor field) {
          return super.clearField(field);
        }
        @java.lang.Override
        public Builder clearOneof(
            com.google.protobuf.Descriptors.OneofDescriptor oneof) {
          return super.clearOneof(oneof);
        }
        @java.lang.Override
        public Builder setRepeatedField(
            com.google.protobuf.Descriptors.FieldDescriptor field,
            int index, java.lang.Object value) {
          return super.setRepeatedField(field, index, value);
        }
        @java.lang.Override
        public Builder addRepeatedField(
            com.google.protobuf.Descriptors.FieldDescriptor field,
            java.lang.Object value) {
          return super.addRepeatedField(field, value);
        }
        @java.lang.Override
        public Builder mergeFrom(com.google.protobuf.Message other) {
          if (other instanceof tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.FromClient) {
            return mergeFrom((tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.FromClient)other);
          } else {
            super.mergeFrom(other);
            return this;
          }
        }

        public Builder mergeFrom(tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.FromClient other) {
          if (other == tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.FromClient.getDefaultInstance()) return this;
          switch (other.getClientMessageCase()) {
            case INIT_DIRECT_READ: {
              mergeInitDirectRead(other.getInitDirectRead());
              break;
            }
            case START_DIRECT_READ_PARTITION_SESSION: {
              mergeStartDirectReadPartitionSession(other.getStartDirectReadPartitionSession());
              break;
            }
            case UPDATE_TOKEN_REQUEST: {
              mergeUpdateTokenRequest(other.getUpdateTokenRequest());
              break;
            }
            case CLIENTMESSAGE_NOT_SET: {
              break;
            }
          }
          this.mergeUnknownFields(other.getUnknownFields());
          onChanged();
          return this;
        }

        @java.lang.Override
        public final boolean isInitialized() {
          return true;
        }

        @java.lang.Override
        public Builder mergeFrom(
            com.google.protobuf.CodedInputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws java.io.IOException {
          if (extensionRegistry == null) {
            throw new java.lang.NullPointerException();
          }
          try {
            boolean done = false;
            while (!done) {
              int tag = input.readTag();
              switch (tag) {
                case 0:
                  done = true;
                  break;
                case 10: {
                  input.readMessage(
                      getInitDirectReadFieldBuilder().getBuilder(),
                      extensionRegistry);
                  clientMessageCase_ = 1;
                  break;
                } // case 10
                case 18: {
                  input.readMessage(
                      getStartDirectReadPartitionSessionFieldBuilder().getBuilder(),
                      extensionRegistry);
                  clientMessageCase_ = 2;
                  break;
                } // case 18
                case 26: {
                  input.readMessage(
                      getUpdateTokenRequestFieldBuilder().getBuilder(),
                      extensionRegistry);
                  clientMessageCase_ = 3;
                  break;
                } // case 26
                default: {
                  if (!super.parseUnknownField(input, extensionRegistry, tag)) {
                    done = true; // was an endgroup tag
                  }
                  break;
                } // default:
              } // switch (tag)
            } // while (!done)
          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
            throw e.unwrapIOException();
          } finally {
            onChanged();
          } // finally
          return this;
        }
        private int clientMessageCase_ = 0;
        private java.lang.Object clientMessage_;
        public ClientMessageCase
            getClientMessageCase() {
          return ClientMessageCase.forNumber(
              clientMessageCase_);
        }

        public Builder clearClientMessage() {
          clientMessageCase_ = 0;
          clientMessage_ = null;
          onChanged();
          return this;
        }

        private int bitField0_;

        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.InitDirectRead, tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.InitDirectRead.Builder, tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.InitDirectReadOrBuilder> initDirectReadBuilder_;
        /**
         * .Ydb.Topic.StreamDirectReadMessage.InitDirectRead init_direct_read = 1;
         * @return Whether the initDirectRead field is set.
         */
        @java.lang.Override
        public boolean hasInitDirectRead() {
          return clientMessageCase_ == 1;
        }
        /**
         * .Ydb.Topic.StreamDirectReadMessage.InitDirectRead init_direct_read = 1;
         * @return The initDirectRead.
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.InitDirectRead getInitDirectRead() {
          if (initDirectReadBuilder_ == null) {
            if (clientMessageCase_ == 1) {
              return (tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.InitDirectRead) clientMessage_;
            }
            return tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.InitDirectRead.getDefaultInstance();
          } else {
            if (clientMessageCase_ == 1) {
              return initDirectReadBuilder_.getMessage();
            }
            return tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.InitDirectRead.getDefaultInstance();
          }
        }
        /**
         * .Ydb.Topic.StreamDirectReadMessage.InitDirectRead init_direct_read = 1;
         */
        public Builder setInitDirectRead(tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.InitDirectRead value) {
          if (initDirectReadBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            clientMessage_ = value;
            onChanged();
          } else {
            initDirectReadBuilder_.setMessage(value);
          }
          clientMessageCase_ = 1;
          return this;
        }
        /**
         * .Ydb.Topic.StreamDirectReadMessage.InitDirectRead init_direct_read = 1;
         */
        public Builder setInitDirectRead(
            tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.InitDirectRead.Builder builderForValue) {
          if (initDirectReadBuilder_ == null) {
            clientMessage_ = builderForValue.build();
            onChanged();
          } else {
            initDirectReadBuilder_.setMessage(builderForValue.build());
          }
          clientMessageCase_ = 1;
          return this;
        }
        /**
         * .Ydb.Topic.StreamDirectReadMessage.InitDirectRead init_direct_read = 1;
         */
        public Builder mergeInitDirectRead(tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.InitDirectRead value) {
          if (initDirectReadBuilder_ == null) {
            if (clientMessageCase_ == 1 &&
                clientMessage_ != tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.InitDirectRead.getDefaultInstance()) {
              clientMessage_ = tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.InitDirectRead.newBuilder((tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.InitDirectRead) clientMessage_)
                  .mergeFrom(value).buildPartial();
            } else {
              clientMessage_ = value;
            }
            onChanged();
          } else {
            if (clientMessageCase_ == 1) {
              initDirectReadBuilder_.mergeFrom(value);
            } else {
              initDirectReadBuilder_.setMessage(value);
            }
          }
          clientMessageCase_ = 1;
          return this;
        }
        /**
         * .Ydb.Topic.StreamDirectReadMessage.InitDirectRead init_direct_read = 1;
         */
        public Builder clearInitDirectRead() {
          if (initDirectReadBuilder_ == null) {
            if (clientMessageCase_ == 1) {
              clientMessageCase_ = 0;
              clientMessage_ = null;
              onChanged();
            }
          } else {
            if (clientMessageCase_ == 1) {
              clientMessageCase_ = 0;
              clientMessage_ = null;
            }
            initDirectReadBuilder_.clear();
          }
          return this;
        }
        /**
         * .Ydb.Topic.StreamDirectReadMessage.InitDirectRead init_direct_read = 1;
         */
        public tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.InitDirectRead.Builder getInitDirectReadBuilder() {
          return getInitDirectReadFieldBuilder().getBuilder();
        }
        /**
         * .Ydb.Topic.StreamDirectReadMessage.InitDirectRead init_direct_read = 1;
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.InitDirectReadOrBuilder getInitDirectReadOrBuilder() {
          if ((clientMessageCase_ == 1) && (initDirectReadBuilder_ != null)) {
            return initDirectReadBuilder_.getMessageOrBuilder();
          } else {
            if (clientMessageCase_ == 1) {
              return (tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.InitDirectRead) clientMessage_;
            }
            return tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.InitDirectRead.getDefaultInstance();
          }
        }
        /**
         * .Ydb.Topic.StreamDirectReadMessage.InitDirectRead init_direct_read = 1;
         */
        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.InitDirectRead, tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.InitDirectRead.Builder, tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.InitDirectReadOrBuilder> 
            getInitDirectReadFieldBuilder() {
          if (initDirectReadBuilder_ == null) {
            if (!(clientMessageCase_ == 1)) {
              clientMessage_ = tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.InitDirectRead.getDefaultInstance();
            }
            initDirectReadBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
                tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.InitDirectRead, tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.InitDirectRead.Builder, tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.InitDirectReadOrBuilder>(
                    (tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.InitDirectRead) clientMessage_,
                    getParentForChildren(),
                    isClean());
            clientMessage_ = null;
          }
          clientMessageCase_ = 1;
          onChanged();
          return initDirectReadBuilder_;
        }

        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StartDirectReadPartitionSession, tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StartDirectReadPartitionSession.Builder, tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StartDirectReadPartitionSessionOrBuilder> startDirectReadPartitionSessionBuilder_;
        /**
         * .Ydb.Topic.StreamDirectReadMessage.StartDirectReadPartitionSession start_direct_read_partition_session = 2;
         * @return Whether the startDirectReadPartitionSession field is set.
         */
        @java.lang.Override
        public boolean hasStartDirectReadPartitionSession() {
          return clientMessageCase_ == 2;
        }
        /**
         * .Ydb.Topic.StreamDirectReadMessage.StartDirectReadPartitionSession start_direct_read_partition_session = 2;
         * @return The startDirectReadPartitionSession.
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StartDirectReadPartitionSession getStartDirectReadPartitionSession() {
          if (startDirectReadPartitionSessionBuilder_ == null) {
            if (clientMessageCase_ == 2) {
              return (tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StartDirectReadPartitionSession) clientMessage_;
            }
            return tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StartDirectReadPartitionSession.getDefaultInstance();
          } else {
            if (clientMessageCase_ == 2) {
              return startDirectReadPartitionSessionBuilder_.getMessage();
            }
            return tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StartDirectReadPartitionSession.getDefaultInstance();
          }
        }
        /**
         * .Ydb.Topic.StreamDirectReadMessage.StartDirectReadPartitionSession start_direct_read_partition_session = 2;
         */
        public Builder setStartDirectReadPartitionSession(tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StartDirectReadPartitionSession value) {
          if (startDirectReadPartitionSessionBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            clientMessage_ = value;
            onChanged();
          } else {
            startDirectReadPartitionSessionBuilder_.setMessage(value);
          }
          clientMessageCase_ = 2;
          return this;
        }
        /**
         * .Ydb.Topic.StreamDirectReadMessage.StartDirectReadPartitionSession start_direct_read_partition_session = 2;
         */
        public Builder setStartDirectReadPartitionSession(
            tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StartDirectReadPartitionSession.Builder builderForValue) {
          if (startDirectReadPartitionSessionBuilder_ == null) {
            clientMessage_ = builderForValue.build();
            onChanged();
          } else {
            startDirectReadPartitionSessionBuilder_.setMessage(builderForValue.build());
          }
          clientMessageCase_ = 2;
          return this;
        }
        /**
         * .Ydb.Topic.StreamDirectReadMessage.StartDirectReadPartitionSession start_direct_read_partition_session = 2;
         */
        public Builder mergeStartDirectReadPartitionSession(tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StartDirectReadPartitionSession value) {
          if (startDirectReadPartitionSessionBuilder_ == null) {
            if (clientMessageCase_ == 2 &&
                clientMessage_ != tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StartDirectReadPartitionSession.getDefaultInstance()) {
              clientMessage_ = tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StartDirectReadPartitionSession.newBuilder((tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StartDirectReadPartitionSession) clientMessage_)
                  .mergeFrom(value).buildPartial();
            } else {
              clientMessage_ = value;
            }
            onChanged();
          } else {
            if (clientMessageCase_ == 2) {
              startDirectReadPartitionSessionBuilder_.mergeFrom(value);
            } else {
              startDirectReadPartitionSessionBuilder_.setMessage(value);
            }
          }
          clientMessageCase_ = 2;
          return this;
        }
        /**
         * .Ydb.Topic.StreamDirectReadMessage.StartDirectReadPartitionSession start_direct_read_partition_session = 2;
         */
        public Builder clearStartDirectReadPartitionSession() {
          if (startDirectReadPartitionSessionBuilder_ == null) {
            if (clientMessageCase_ == 2) {
              clientMessageCase_ = 0;
              clientMessage_ = null;
              onChanged();
            }
          } else {
            if (clientMessageCase_ == 2) {
              clientMessageCase_ = 0;
              clientMessage_ = null;
            }
            startDirectReadPartitionSessionBuilder_.clear();
          }
          return this;
        }
        /**
         * .Ydb.Topic.StreamDirectReadMessage.StartDirectReadPartitionSession start_direct_read_partition_session = 2;
         */
        public tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StartDirectReadPartitionSession.Builder getStartDirectReadPartitionSessionBuilder() {
          return getStartDirectReadPartitionSessionFieldBuilder().getBuilder();
        }
        /**
         * .Ydb.Topic.StreamDirectReadMessage.StartDirectReadPartitionSession start_direct_read_partition_session = 2;
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StartDirectReadPartitionSessionOrBuilder getStartDirectReadPartitionSessionOrBuilder() {
          if ((clientMessageCase_ == 2) && (startDirectReadPartitionSessionBuilder_ != null)) {
            return startDirectReadPartitionSessionBuilder_.getMessageOrBuilder();
          } else {
            if (clientMessageCase_ == 2) {
              return (tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StartDirectReadPartitionSession) clientMessage_;
            }
            return tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StartDirectReadPartitionSession.getDefaultInstance();
          }
        }
        /**
         * .Ydb.Topic.StreamDirectReadMessage.StartDirectReadPartitionSession start_direct_read_partition_session = 2;
         */
        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StartDirectReadPartitionSession, tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StartDirectReadPartitionSession.Builder, tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StartDirectReadPartitionSessionOrBuilder> 
            getStartDirectReadPartitionSessionFieldBuilder() {
          if (startDirectReadPartitionSessionBuilder_ == null) {
            if (!(clientMessageCase_ == 2)) {
              clientMessage_ = tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StartDirectReadPartitionSession.getDefaultInstance();
            }
            startDirectReadPartitionSessionBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
                tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StartDirectReadPartitionSession, tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StartDirectReadPartitionSession.Builder, tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StartDirectReadPartitionSessionOrBuilder>(
                    (tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StartDirectReadPartitionSession) clientMessage_,
                    getParentForChildren(),
                    isClean());
            clientMessage_ = null;
          }
          clientMessageCase_ = 2;
          onChanged();
          return startDirectReadPartitionSessionBuilder_;
        }

        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest, tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest.Builder, tech.ydb.proto.topic.YdbTopic.UpdateTokenRequestOrBuilder> updateTokenRequestBuilder_;
        /**
         * .Ydb.Topic.UpdateTokenRequest update_token_request = 3;
         * @return Whether the updateTokenRequest field is set.
         */
        @java.lang.Override
        public boolean hasUpdateTokenRequest() {
          return clientMessageCase_ == 3;
        }
        /**
         * .Ydb.Topic.UpdateTokenRequest update_token_request = 3;
         * @return The updateTokenRequest.
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest getUpdateTokenRequest() {
          if (updateTokenRequestBuilder_ == null) {
            if (clientMessageCase_ == 3) {
              return (tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest) clientMessage_;
            }
            return tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest.getDefaultInstance();
          } else {
            if (clientMessageCase_ == 3) {
              return updateTokenRequestBuilder_.getMessage();
            }
            return tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest.getDefaultInstance();
          }
        }
        /**
         * .Ydb.Topic.UpdateTokenRequest update_token_request = 3;
         */
        public Builder setUpdateTokenRequest(tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest value) {
          if (updateTokenRequestBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            clientMessage_ = value;
            onChanged();
          } else {
            updateTokenRequestBuilder_.setMessage(value);
          }
          clientMessageCase_ = 3;
          return this;
        }
        /**
         * .Ydb.Topic.UpdateTokenRequest update_token_request = 3;
         */
        public Builder setUpdateTokenRequest(
            tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest.Builder builderForValue) {
          if (updateTokenRequestBuilder_ == null) {
            clientMessage_ = builderForValue.build();
            onChanged();
          } else {
            updateTokenRequestBuilder_.setMessage(builderForValue.build());
          }
          clientMessageCase_ = 3;
          return this;
        }
        /**
         * .Ydb.Topic.UpdateTokenRequest update_token_request = 3;
         */
        public Builder mergeUpdateTokenRequest(tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest value) {
          if (updateTokenRequestBuilder_ == null) {
            if (clientMessageCase_ == 3 &&
                clientMessage_ != tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest.getDefaultInstance()) {
              clientMessage_ = tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest.newBuilder((tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest) clientMessage_)
                  .mergeFrom(value).buildPartial();
            } else {
              clientMessage_ = value;
            }
            onChanged();
          } else {
            if (clientMessageCase_ == 3) {
              updateTokenRequestBuilder_.mergeFrom(value);
            } else {
              updateTokenRequestBuilder_.setMessage(value);
            }
          }
          clientMessageCase_ = 3;
          return this;
        }
        /**
         * .Ydb.Topic.UpdateTokenRequest update_token_request = 3;
         */
        public Builder clearUpdateTokenRequest() {
          if (updateTokenRequestBuilder_ == null) {
            if (clientMessageCase_ == 3) {
              clientMessageCase_ = 0;
              clientMessage_ = null;
              onChanged();
            }
          } else {
            if (clientMessageCase_ == 3) {
              clientMessageCase_ = 0;
              clientMessage_ = null;
            }
            updateTokenRequestBuilder_.clear();
          }
          return this;
        }
        /**
         * .Ydb.Topic.UpdateTokenRequest update_token_request = 3;
         */
        public tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest.Builder getUpdateTokenRequestBuilder() {
          return getUpdateTokenRequestFieldBuilder().getBuilder();
        }
        /**
         * .Ydb.Topic.UpdateTokenRequest update_token_request = 3;
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.UpdateTokenRequestOrBuilder getUpdateTokenRequestOrBuilder() {
          if ((clientMessageCase_ == 3) && (updateTokenRequestBuilder_ != null)) {
            return updateTokenRequestBuilder_.getMessageOrBuilder();
          } else {
            if (clientMessageCase_ == 3) {
              return (tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest) clientMessage_;
            }
            return tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest.getDefaultInstance();
          }
        }
        /**
         * .Ydb.Topic.UpdateTokenRequest update_token_request = 3;
         */
        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest, tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest.Builder, tech.ydb.proto.topic.YdbTopic.UpdateTokenRequestOrBuilder> 
            getUpdateTokenRequestFieldBuilder() {
          if (updateTokenRequestBuilder_ == null) {
            if (!(clientMessageCase_ == 3)) {
              clientMessage_ = tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest.getDefaultInstance();
            }
            updateTokenRequestBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
                tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest, tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest.Builder, tech.ydb.proto.topic.YdbTopic.UpdateTokenRequestOrBuilder>(
                    (tech.ydb.proto.topic.YdbTopic.UpdateTokenRequest) clientMessage_,
                    getParentForChildren(),
                    isClean());
            clientMessage_ = null;
          }
          clientMessageCase_ = 3;
          onChanged();
          return updateTokenRequestBuilder_;
        }
        @java.lang.Override
        public final Builder setUnknownFields(
            final com.google.protobuf.UnknownFieldSet unknownFields) {
          return super.setUnknownFields(unknownFields);
        }

        @java.lang.Override
        public final Builder mergeUnknownFields(
            final com.google.protobuf.UnknownFieldSet unknownFields) {
          return super.mergeUnknownFields(unknownFields);
        }


        // @@protoc_insertion_point(builder_scope:Ydb.Topic.StreamDirectReadMessage.FromClient)
      }

      // @@protoc_insertion_point(class_scope:Ydb.Topic.StreamDirectReadMessage.FromClient)
      private static final tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.FromClient DEFAULT_INSTANCE;
      static {
        DEFAULT_INSTANCE = new tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.FromClient();
      }

      public static tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.FromClient getDefaultInstance() {
        return DEFAULT_INSTANCE;
      }

      private static final com.google.protobuf.Parser
          PARSER = new com.google.protobuf.AbstractParser() {
        @java.lang.Override
        public FromClient parsePartialFrom(
            com.google.protobuf.CodedInputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws com.google.protobuf.InvalidProtocolBufferException {
          Builder builder = newBuilder();
          try {
            builder.mergeFrom(input, extensionRegistry);
          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
            throw e.setUnfinishedMessage(builder.buildPartial());
          } catch (com.google.protobuf.UninitializedMessageException e) {
            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
          } catch (java.io.IOException e) {
            throw new com.google.protobuf.InvalidProtocolBufferException(e)
                .setUnfinishedMessage(builder.buildPartial());
          }
          return builder.buildPartial();
        }
      };

      public static com.google.protobuf.Parser parser() {
        return PARSER;
      }

      @java.lang.Override
      public com.google.protobuf.Parser getParserForType() {
        return PARSER;
      }

      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.FromClient getDefaultInstanceForType() {
        return DEFAULT_INSTANCE;
      }

    }

    public interface FromServerOrBuilder extends
        // @@protoc_insertion_point(interface_extends:Ydb.Topic.StreamDirectReadMessage.FromServer)
        com.google.protobuf.MessageOrBuilder {

      /**
       * 
       * Server status of response.
       * 
       *
       * .Ydb.StatusIds.StatusCode status = 1;
       * @return The enum numeric value on the wire for status.
       */
      int getStatusValue();
      /**
       * 
       * Server status of response.
       * 
       *
       * .Ydb.StatusIds.StatusCode status = 1;
       * @return The status.
       */
      tech.ydb.proto.StatusCodesProtos.StatusIds.StatusCode getStatus();

      /**
       * 
       * Issues if any.
       * 
       *
       * repeated .Ydb.Issue.IssueMessage issues = 2;
       */
      java.util.List 
          getIssuesList();
      /**
       * 
       * Issues if any.
       * 
       *
       * repeated .Ydb.Issue.IssueMessage issues = 2;
       */
      tech.ydb.proto.YdbIssueMessage.IssueMessage getIssues(int index);
      /**
       * 
       * Issues if any.
       * 
       *
       * repeated .Ydb.Issue.IssueMessage issues = 2;
       */
      int getIssuesCount();
      /**
       * 
       * Issues if any.
       * 
       *
       * repeated .Ydb.Issue.IssueMessage issues = 2;
       */
      java.util.List 
          getIssuesOrBuilderList();
      /**
       * 
       * Issues if any.
       * 
       *
       * repeated .Ydb.Issue.IssueMessage issues = 2;
       */
      tech.ydb.proto.YdbIssueMessage.IssueMessageOrBuilder getIssuesOrBuilder(
          int index);

      /**
       * .Ydb.Topic.StreamDirectReadMessage.StopDirectReadPartitionSession stop_direct_read_partition_session = 3;
       * @return Whether the stopDirectReadPartitionSession field is set.
       */
      boolean hasStopDirectReadPartitionSession();
      /**
       * .Ydb.Topic.StreamDirectReadMessage.StopDirectReadPartitionSession stop_direct_read_partition_session = 3;
       * @return The stopDirectReadPartitionSession.
       */
      tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSession getStopDirectReadPartitionSession();
      /**
       * .Ydb.Topic.StreamDirectReadMessage.StopDirectReadPartitionSession stop_direct_read_partition_session = 3;
       */
      tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSessionOrBuilder getStopDirectReadPartitionSessionOrBuilder();

      /**
       * .Ydb.Topic.StreamDirectReadMessage.DirectReadResponse direct_read_response = 4;
       * @return Whether the directReadResponse field is set.
       */
      boolean hasDirectReadResponse();
      /**
       * .Ydb.Topic.StreamDirectReadMessage.DirectReadResponse direct_read_response = 4;
       * @return The directReadResponse.
       */
      tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponse getDirectReadResponse();
      /**
       * .Ydb.Topic.StreamDirectReadMessage.DirectReadResponse direct_read_response = 4;
       */
      tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponseOrBuilder getDirectReadResponseOrBuilder();

      /**
       * .Ydb.Topic.UpdateTokenResponse update_token_response = 5;
       * @return Whether the updateTokenResponse field is set.
       */
      boolean hasUpdateTokenResponse();
      /**
       * .Ydb.Topic.UpdateTokenResponse update_token_response = 5;
       * @return The updateTokenResponse.
       */
      tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse getUpdateTokenResponse();
      /**
       * .Ydb.Topic.UpdateTokenResponse update_token_response = 5;
       */
      tech.ydb.proto.topic.YdbTopic.UpdateTokenResponseOrBuilder getUpdateTokenResponseOrBuilder();

      tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.FromServer.ServerMessageCase getServerMessageCase();
    }
    /**
     * 
     * Server-client message for direct read session.
     *     DirectReadResponse - portion of message data.
     *     StopDirectReadPartitionSession - command from server to stop a direct read partition session.
     *     UpdateTokenResponse - acknowledgment of token update.
     * 
     *
     * Protobuf type {@code Ydb.Topic.StreamDirectReadMessage.FromServer}
     */
    public static final class FromServer extends
        com.google.protobuf.GeneratedMessageV3 implements
        // @@protoc_insertion_point(message_implements:Ydb.Topic.StreamDirectReadMessage.FromServer)
        FromServerOrBuilder {
    private static final long serialVersionUID = 0L;
      // Use FromServer.newBuilder() to construct.
      private FromServer(com.google.protobuf.GeneratedMessageV3.Builder builder) {
        super(builder);
      }
      private FromServer() {
        status_ = 0;
        issues_ = java.util.Collections.emptyList();
      }

      @java.lang.Override
      @SuppressWarnings({"unused"})
      protected java.lang.Object newInstance(
          UnusedPrivateParameter unused) {
        return new FromServer();
      }

      public static final com.google.protobuf.Descriptors.Descriptor
          getDescriptor() {
        return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamDirectReadMessage_FromServer_descriptor;
      }

      @java.lang.Override
      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
          internalGetFieldAccessorTable() {
        return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamDirectReadMessage_FromServer_fieldAccessorTable
            .ensureFieldAccessorsInitialized(
                tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.FromServer.class, tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.FromServer.Builder.class);
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      private int serverMessageCase_ = 0;
      @SuppressWarnings("serial")
      private java.lang.Object serverMessage_;
      public enum ServerMessageCase
          implements com.google.protobuf.Internal.EnumLite,
              com.google.protobuf.AbstractMessage.InternalOneOfEnum {
        STOP_DIRECT_READ_PARTITION_SESSION(3),
        DIRECT_READ_RESPONSE(4),
        UPDATE_TOKEN_RESPONSE(5),
        SERVERMESSAGE_NOT_SET(0);
        private final int value;
        private ServerMessageCase(int value) {
          this.value = value;
        }
        /**
         * @param value The number of the enum to look for.
         * @return The enum associated with the given number.
         * @deprecated Use {@link #forNumber(int)} instead.
         */
        @java.lang.Deprecated
        public static ServerMessageCase valueOf(int value) {
          return forNumber(value);
        }

        public static ServerMessageCase forNumber(int value) {
          switch (value) {
            case 3: return STOP_DIRECT_READ_PARTITION_SESSION;
            case 4: return DIRECT_READ_RESPONSE;
            case 5: return UPDATE_TOKEN_RESPONSE;
            case 0: return SERVERMESSAGE_NOT_SET;
            default: return null;
          }
        }
        public int getNumber() {
          return this.value;
        }
      };

      public ServerMessageCase
      getServerMessageCase() {
        return ServerMessageCase.forNumber(
            serverMessageCase_);
      }

      public static final int STATUS_FIELD_NUMBER = 1;
      private int status_ = 0;
      /**
       * 
       * Server status of response.
       * 
       *
       * .Ydb.StatusIds.StatusCode status = 1;
       * @return The enum numeric value on the wire for status.
       */
      @java.lang.Override public int getStatusValue() {
        return status_;
      }
      /**
       * 
       * Server status of response.
       * 
       *
       * .Ydb.StatusIds.StatusCode status = 1;
       * @return The status.
       */
      @java.lang.Override public tech.ydb.proto.StatusCodesProtos.StatusIds.StatusCode getStatus() {
        tech.ydb.proto.StatusCodesProtos.StatusIds.StatusCode result = tech.ydb.proto.StatusCodesProtos.StatusIds.StatusCode.forNumber(status_);
        return result == null ? tech.ydb.proto.StatusCodesProtos.StatusIds.StatusCode.UNRECOGNIZED : result;
      }

      public static final int ISSUES_FIELD_NUMBER = 2;
      @SuppressWarnings("serial")
      private java.util.List issues_;
      /**
       * 
       * Issues if any.
       * 
       *
       * repeated .Ydb.Issue.IssueMessage issues = 2;
       */
      @java.lang.Override
      public java.util.List getIssuesList() {
        return issues_;
      }
      /**
       * 
       * Issues if any.
       * 
       *
       * repeated .Ydb.Issue.IssueMessage issues = 2;
       */
      @java.lang.Override
      public java.util.List 
          getIssuesOrBuilderList() {
        return issues_;
      }
      /**
       * 
       * Issues if any.
       * 
       *
       * repeated .Ydb.Issue.IssueMessage issues = 2;
       */
      @java.lang.Override
      public int getIssuesCount() {
        return issues_.size();
      }
      /**
       * 
       * Issues if any.
       * 
       *
       * repeated .Ydb.Issue.IssueMessage issues = 2;
       */
      @java.lang.Override
      public tech.ydb.proto.YdbIssueMessage.IssueMessage getIssues(int index) {
        return issues_.get(index);
      }
      /**
       * 
       * Issues if any.
       * 
       *
       * repeated .Ydb.Issue.IssueMessage issues = 2;
       */
      @java.lang.Override
      public tech.ydb.proto.YdbIssueMessage.IssueMessageOrBuilder getIssuesOrBuilder(
          int index) {
        return issues_.get(index);
      }

      public static final int STOP_DIRECT_READ_PARTITION_SESSION_FIELD_NUMBER = 3;
      /**
       * .Ydb.Topic.StreamDirectReadMessage.StopDirectReadPartitionSession stop_direct_read_partition_session = 3;
       * @return Whether the stopDirectReadPartitionSession field is set.
       */
      @java.lang.Override
      public boolean hasStopDirectReadPartitionSession() {
        return serverMessageCase_ == 3;
      }
      /**
       * .Ydb.Topic.StreamDirectReadMessage.StopDirectReadPartitionSession stop_direct_read_partition_session = 3;
       * @return The stopDirectReadPartitionSession.
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSession getStopDirectReadPartitionSession() {
        if (serverMessageCase_ == 3) {
           return (tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSession) serverMessage_;
        }
        return tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSession.getDefaultInstance();
      }
      /**
       * .Ydb.Topic.StreamDirectReadMessage.StopDirectReadPartitionSession stop_direct_read_partition_session = 3;
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSessionOrBuilder getStopDirectReadPartitionSessionOrBuilder() {
        if (serverMessageCase_ == 3) {
           return (tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSession) serverMessage_;
        }
        return tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSession.getDefaultInstance();
      }

      public static final int DIRECT_READ_RESPONSE_FIELD_NUMBER = 4;
      /**
       * .Ydb.Topic.StreamDirectReadMessage.DirectReadResponse direct_read_response = 4;
       * @return Whether the directReadResponse field is set.
       */
      @java.lang.Override
      public boolean hasDirectReadResponse() {
        return serverMessageCase_ == 4;
      }
      /**
       * .Ydb.Topic.StreamDirectReadMessage.DirectReadResponse direct_read_response = 4;
       * @return The directReadResponse.
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponse getDirectReadResponse() {
        if (serverMessageCase_ == 4) {
           return (tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponse) serverMessage_;
        }
        return tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponse.getDefaultInstance();
      }
      /**
       * .Ydb.Topic.StreamDirectReadMessage.DirectReadResponse direct_read_response = 4;
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponseOrBuilder getDirectReadResponseOrBuilder() {
        if (serverMessageCase_ == 4) {
           return (tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponse) serverMessage_;
        }
        return tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponse.getDefaultInstance();
      }

      public static final int UPDATE_TOKEN_RESPONSE_FIELD_NUMBER = 5;
      /**
       * .Ydb.Topic.UpdateTokenResponse update_token_response = 5;
       * @return Whether the updateTokenResponse field is set.
       */
      @java.lang.Override
      public boolean hasUpdateTokenResponse() {
        return serverMessageCase_ == 5;
      }
      /**
       * .Ydb.Topic.UpdateTokenResponse update_token_response = 5;
       * @return The updateTokenResponse.
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse getUpdateTokenResponse() {
        if (serverMessageCase_ == 5) {
           return (tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse) serverMessage_;
        }
        return tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse.getDefaultInstance();
      }
      /**
       * .Ydb.Topic.UpdateTokenResponse update_token_response = 5;
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.UpdateTokenResponseOrBuilder getUpdateTokenResponseOrBuilder() {
        if (serverMessageCase_ == 5) {
           return (tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse) serverMessage_;
        }
        return tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse.getDefaultInstance();
      }

      private byte memoizedIsInitialized = -1;
      @java.lang.Override
      public final boolean isInitialized() {
        byte isInitialized = memoizedIsInitialized;
        if (isInitialized == 1) return true;
        if (isInitialized == 0) return false;

        memoizedIsInitialized = 1;
        return true;
      }

      @java.lang.Override
      public void writeTo(com.google.protobuf.CodedOutputStream output)
                          throws java.io.IOException {
        if (status_ != tech.ydb.proto.StatusCodesProtos.StatusIds.StatusCode.STATUS_CODE_UNSPECIFIED.getNumber()) {
          output.writeEnum(1, status_);
        }
        for (int i = 0; i < issues_.size(); i++) {
          output.writeMessage(2, issues_.get(i));
        }
        if (serverMessageCase_ == 3) {
          output.writeMessage(3, (tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSession) serverMessage_);
        }
        if (serverMessageCase_ == 4) {
          output.writeMessage(4, (tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponse) serverMessage_);
        }
        if (serverMessageCase_ == 5) {
          output.writeMessage(5, (tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse) serverMessage_);
        }
        getUnknownFields().writeTo(output);
      }

      @java.lang.Override
      public int getSerializedSize() {
        int size = memoizedSize;
        if (size != -1) return size;

        size = 0;
        if (status_ != tech.ydb.proto.StatusCodesProtos.StatusIds.StatusCode.STATUS_CODE_UNSPECIFIED.getNumber()) {
          size += com.google.protobuf.CodedOutputStream
            .computeEnumSize(1, status_);
        }
        for (int i = 0; i < issues_.size(); i++) {
          size += com.google.protobuf.CodedOutputStream
            .computeMessageSize(2, issues_.get(i));
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        if (serverMessageCase_ == 3) {
          size += com.google.protobuf.CodedOutputStream
            .computeMessageSize(3, (tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSession) serverMessage_);
        }
        if (serverMessageCase_ == 4) {
          size += com.google.protobuf.CodedOutputStream
            .computeMessageSize(4, (tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponse) serverMessage_);
        }
        if (serverMessageCase_ == 5) {
          size += com.google.protobuf.CodedOutputStream
            .computeMessageSize(5, (tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse) serverMessage_);
        }
        size += getUnknownFields().getSerializedSize();
        memoizedSize = size;
        return size;
      }

      @java.lang.Override
      public boolean equals(final java.lang.Object obj) {
        if (obj == this) {
         return true;
        }
        if (!(obj instanceof tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.FromServer)) {
          return super.equals(obj);
        }
        tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.FromServer other = (tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.FromServer) obj;

        if (status_ != other.status_) return false;
        if (!getIssuesList()
            .equals(other.getIssuesList())) return false;
        if (!getServerMessageCase().equals(other.getServerMessageCase())) return false;
        switch (serverMessageCase_) {
          case 3:
            if (!getStopDirectReadPartitionSession()
                .equals(other.getStopDirectReadPartitionSession())) return false;
            break;
          case 4:
            if (!getDirectReadResponse()
                .equals(other.getDirectReadResponse())) return false;
            break;
          case 5:
            if (!getUpdateTokenResponse()
                .equals(other.getUpdateTokenResponse())) return false;
            break;
          case 0:
          default:
        }
        if (!getUnknownFields().equals(other.getUnknownFields())) return false;
        return true;
      }

      @java.lang.Override
      public int hashCode() {
        if (memoizedHashCode != 0) {
          return memoizedHashCode;
        }
        int hash = 41;
        hash = (19 * hash) + getDescriptor().hashCode();
        hash = (37 * hash) + STATUS_FIELD_NUMBER;
        hash = (53 * hash) + status_;
        if (getIssuesCount() > 0) {
          hash = (37 * hash) + ISSUES_FIELD_NUMBER;
          hash = (53 * hash) + getIssuesList().hashCode();
        }
        switch (serverMessageCase_) {
          case 3:
            hash = (37 * hash) + STOP_DIRECT_READ_PARTITION_SESSION_FIELD_NUMBER;
            hash = (53 * hash) + getStopDirectReadPartitionSession().hashCode();
            break;
          case 4:
            hash = (37 * hash) + DIRECT_READ_RESPONSE_FIELD_NUMBER;
            hash = (53 * hash) + getDirectReadResponse().hashCode();
            break;
          case 5:
            hash = (37 * hash) + UPDATE_TOKEN_RESPONSE_FIELD_NUMBER;
            hash = (53 * hash) + getUpdateTokenResponse().hashCode();
            break;
          case 0:
          default:
        }
        hash = (29 * hash) + getUnknownFields().hashCode();
        memoizedHashCode = hash;
        return hash;
      }

      public static tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.FromServer parseFrom(
          java.nio.ByteBuffer data)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.FromServer parseFrom(
          java.nio.ByteBuffer data,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data, extensionRegistry);
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      public static tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.FromServer parseFrom(
          com.google.protobuf.ByteString data)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.FromServer parseFrom(
          com.google.protobuf.ByteString data,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data, extensionRegistry);
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        return PARSER.parseFrom(data);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.FromServer parseFrom(
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            .parseWithIOException(PARSER, input);
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      @java.lang.Override
      public Builder newBuilderForType() { return newBuilder(); }
      public static Builder newBuilder() {
        return DEFAULT_INSTANCE.toBuilder();
      }
      public static Builder newBuilder(tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.FromServer prototype) {
        return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
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      @java.lang.Override
      public Builder toBuilder() {
        return this == DEFAULT_INSTANCE
            ? new Builder() : new Builder().mergeFrom(this);
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      @java.lang.Override
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        Builder builder = new Builder(parent);
        return builder;
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      /**
       * 
       * Server-client message for direct read session.
       *     DirectReadResponse - portion of message data.
       *     StopDirectReadPartitionSession - command from server to stop a direct read partition session.
       *     UpdateTokenResponse - acknowledgment of token update.
       * 
       *
       * Protobuf type {@code Ydb.Topic.StreamDirectReadMessage.FromServer}
       */
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              bitField0_ = (bitField0_ & ~0x00000002);
            }
            result.issues_ = issues_;
          } else {
            result.issues_ = issuesBuilder_.build();
          }
        }

        private void buildPartial0(tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.FromServer result) {
          int from_bitField0_ = bitField0_;
          if (((from_bitField0_ & 0x00000001) != 0)) {
            result.status_ = status_;
          }
        }

        private void buildPartialOneofs(tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.FromServer result) {
          result.serverMessageCase_ = serverMessageCase_;
          result.serverMessage_ = this.serverMessage_;
          if (serverMessageCase_ == 3 &&
              stopDirectReadPartitionSessionBuilder_ != null) {
            result.serverMessage_ = stopDirectReadPartitionSessionBuilder_.build();
          }
          if (serverMessageCase_ == 4 &&
              directReadResponseBuilder_ != null) {
            result.serverMessage_ = directReadResponseBuilder_.build();
          }
          if (serverMessageCase_ == 5 &&
              updateTokenResponseBuilder_ != null) {
            result.serverMessage_ = updateTokenResponseBuilder_.build();
          }
        }

        @java.lang.Override
        public Builder clone() {
          return super.clone();
        }
        @java.lang.Override
        public Builder setField(
            com.google.protobuf.Descriptors.FieldDescriptor field,
            java.lang.Object value) {
          return super.setField(field, value);
        }
        @java.lang.Override
        public Builder clearField(
            com.google.protobuf.Descriptors.FieldDescriptor field) {
          return super.clearField(field);
        }
        @java.lang.Override
        public Builder clearOneof(
            com.google.protobuf.Descriptors.OneofDescriptor oneof) {
          return super.clearOneof(oneof);
        }
        @java.lang.Override
        public Builder setRepeatedField(
            com.google.protobuf.Descriptors.FieldDescriptor field,
            int index, java.lang.Object value) {
          return super.setRepeatedField(field, index, value);
        }
        @java.lang.Override
        public Builder addRepeatedField(
            com.google.protobuf.Descriptors.FieldDescriptor field,
            java.lang.Object value) {
          return super.addRepeatedField(field, value);
        }
        @java.lang.Override
        public Builder mergeFrom(com.google.protobuf.Message other) {
          if (other instanceof tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.FromServer) {
            return mergeFrom((tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.FromServer)other);
          } else {
            super.mergeFrom(other);
            return this;
          }
        }

        public Builder mergeFrom(tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.FromServer other) {
          if (other == tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.FromServer.getDefaultInstance()) return this;
          if (other.status_ != 0) {
            setStatusValue(other.getStatusValue());
          }
          if (issuesBuilder_ == null) {
            if (!other.issues_.isEmpty()) {
              if (issues_.isEmpty()) {
                issues_ = other.issues_;
                bitField0_ = (bitField0_ & ~0x00000002);
              } else {
                ensureIssuesIsMutable();
                issues_.addAll(other.issues_);
              }
              onChanged();
            }
          } else {
            if (!other.issues_.isEmpty()) {
              if (issuesBuilder_.isEmpty()) {
                issuesBuilder_.dispose();
                issuesBuilder_ = null;
                issues_ = other.issues_;
                bitField0_ = (bitField0_ & ~0x00000002);
                issuesBuilder_ = 
                  com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders ?
                     getIssuesFieldBuilder() : null;
              } else {
                issuesBuilder_.addAllMessages(other.issues_);
              }
            }
          }
          switch (other.getServerMessageCase()) {
            case STOP_DIRECT_READ_PARTITION_SESSION: {
              mergeStopDirectReadPartitionSession(other.getStopDirectReadPartitionSession());
              break;
            }
            case DIRECT_READ_RESPONSE: {
              mergeDirectReadResponse(other.getDirectReadResponse());
              break;
            }
            case UPDATE_TOKEN_RESPONSE: {
              mergeUpdateTokenResponse(other.getUpdateTokenResponse());
              break;
            }
            case SERVERMESSAGE_NOT_SET: {
              break;
            }
          }
          this.mergeUnknownFields(other.getUnknownFields());
          onChanged();
          return this;
        }

        @java.lang.Override
        public final boolean isInitialized() {
          return true;
        }

        @java.lang.Override
        public Builder mergeFrom(
            com.google.protobuf.CodedInputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws java.io.IOException {
          if (extensionRegistry == null) {
            throw new java.lang.NullPointerException();
          }
          try {
            boolean done = false;
            while (!done) {
              int tag = input.readTag();
              switch (tag) {
                case 0:
                  done = true;
                  break;
                case 8: {
                  status_ = input.readEnum();
                  bitField0_ |= 0x00000001;
                  break;
                } // case 8
                case 18: {
                  tech.ydb.proto.YdbIssueMessage.IssueMessage m =
                      input.readMessage(
                          tech.ydb.proto.YdbIssueMessage.IssueMessage.parser(),
                          extensionRegistry);
                  if (issuesBuilder_ == null) {
                    ensureIssuesIsMutable();
                    issues_.add(m);
                  } else {
                    issuesBuilder_.addMessage(m);
                  }
                  break;
                } // case 18
                case 26: {
                  input.readMessage(
                      getStopDirectReadPartitionSessionFieldBuilder().getBuilder(),
                      extensionRegistry);
                  serverMessageCase_ = 3;
                  break;
                } // case 26
                case 34: {
                  input.readMessage(
                      getDirectReadResponseFieldBuilder().getBuilder(),
                      extensionRegistry);
                  serverMessageCase_ = 4;
                  break;
                } // case 34
                case 42: {
                  input.readMessage(
                      getUpdateTokenResponseFieldBuilder().getBuilder(),
                      extensionRegistry);
                  serverMessageCase_ = 5;
                  break;
                } // case 42
                default: {
                  if (!super.parseUnknownField(input, extensionRegistry, tag)) {
                    done = true; // was an endgroup tag
                  }
                  break;
                } // default:
              } // switch (tag)
            } // while (!done)
          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
            throw e.unwrapIOException();
          } finally {
            onChanged();
          } // finally
          return this;
        }
        private int serverMessageCase_ = 0;
        private java.lang.Object serverMessage_;
        public ServerMessageCase
            getServerMessageCase() {
          return ServerMessageCase.forNumber(
              serverMessageCase_);
        }

        public Builder clearServerMessage() {
          serverMessageCase_ = 0;
          serverMessage_ = null;
          onChanged();
          return this;
        }

        private int bitField0_;

        private int status_ = 0;
        /**
         * 
         * Server status of response.
         * 
         *
         * .Ydb.StatusIds.StatusCode status = 1;
         * @return The enum numeric value on the wire for status.
         */
        @java.lang.Override public int getStatusValue() {
          return status_;
        }
        /**
         * 
         * Server status of response.
         * 
         *
         * .Ydb.StatusIds.StatusCode status = 1;
         * @param value The enum numeric value on the wire for status to set.
         * @return This builder for chaining.
         */
        public Builder setStatusValue(int value) {
          status_ = value;
          bitField0_ |= 0x00000001;
          onChanged();
          return this;
        }
        /**
         * 
         * Server status of response.
         * 
         *
         * .Ydb.StatusIds.StatusCode status = 1;
         * @return The status.
         */
        @java.lang.Override
        public tech.ydb.proto.StatusCodesProtos.StatusIds.StatusCode getStatus() {
          tech.ydb.proto.StatusCodesProtos.StatusIds.StatusCode result = tech.ydb.proto.StatusCodesProtos.StatusIds.StatusCode.forNumber(status_);
          return result == null ? tech.ydb.proto.StatusCodesProtos.StatusIds.StatusCode.UNRECOGNIZED : result;
        }
        /**
         * 
         * Server status of response.
         * 
         *
         * .Ydb.StatusIds.StatusCode status = 1;
         * @param value The status to set.
         * @return This builder for chaining.
         */
        public Builder setStatus(tech.ydb.proto.StatusCodesProtos.StatusIds.StatusCode value) {
          if (value == null) {
            throw new NullPointerException();
          }
          bitField0_ |= 0x00000001;
          status_ = value.getNumber();
          onChanged();
          return this;
        }
        /**
         * 
         * Server status of response.
         * 
         *
         * .Ydb.StatusIds.StatusCode status = 1;
         * @return This builder for chaining.
         */
        public Builder clearStatus() {
          bitField0_ = (bitField0_ & ~0x00000001);
          status_ = 0;
          onChanged();
          return this;
        }

        private java.util.List issues_ =
          java.util.Collections.emptyList();
        private void ensureIssuesIsMutable() {
          if (!((bitField0_ & 0x00000002) != 0)) {
            issues_ = new java.util.ArrayList(issues_);
            bitField0_ |= 0x00000002;
           }
        }

        private com.google.protobuf.RepeatedFieldBuilderV3<
            tech.ydb.proto.YdbIssueMessage.IssueMessage, tech.ydb.proto.YdbIssueMessage.IssueMessage.Builder, tech.ydb.proto.YdbIssueMessage.IssueMessageOrBuilder> issuesBuilder_;

        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public java.util.List getIssuesList() {
          if (issuesBuilder_ == null) {
            return java.util.Collections.unmodifiableList(issues_);
          } else {
            return issuesBuilder_.getMessageList();
          }
        }
        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public int getIssuesCount() {
          if (issuesBuilder_ == null) {
            return issues_.size();
          } else {
            return issuesBuilder_.getCount();
          }
        }
        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public tech.ydb.proto.YdbIssueMessage.IssueMessage getIssues(int index) {
          if (issuesBuilder_ == null) {
            return issues_.get(index);
          } else {
            return issuesBuilder_.getMessage(index);
          }
        }
        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public Builder setIssues(
            int index, tech.ydb.proto.YdbIssueMessage.IssueMessage value) {
          if (issuesBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            ensureIssuesIsMutable();
            issues_.set(index, value);
            onChanged();
          } else {
            issuesBuilder_.setMessage(index, value);
          }
          return this;
        }
        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public Builder setIssues(
            int index, tech.ydb.proto.YdbIssueMessage.IssueMessage.Builder builderForValue) {
          if (issuesBuilder_ == null) {
            ensureIssuesIsMutable();
            issues_.set(index, builderForValue.build());
            onChanged();
          } else {
            issuesBuilder_.setMessage(index, builderForValue.build());
          }
          return this;
        }
        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public Builder addIssues(tech.ydb.proto.YdbIssueMessage.IssueMessage value) {
          if (issuesBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            ensureIssuesIsMutable();
            issues_.add(value);
            onChanged();
          } else {
            issuesBuilder_.addMessage(value);
          }
          return this;
        }
        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public Builder addIssues(
            int index, tech.ydb.proto.YdbIssueMessage.IssueMessage value) {
          if (issuesBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            ensureIssuesIsMutable();
            issues_.add(index, value);
            onChanged();
          } else {
            issuesBuilder_.addMessage(index, value);
          }
          return this;
        }
        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public Builder addIssues(
            tech.ydb.proto.YdbIssueMessage.IssueMessage.Builder builderForValue) {
          if (issuesBuilder_ == null) {
            ensureIssuesIsMutable();
            issues_.add(builderForValue.build());
            onChanged();
          } else {
            issuesBuilder_.addMessage(builderForValue.build());
          }
          return this;
        }
        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public Builder addIssues(
            int index, tech.ydb.proto.YdbIssueMessage.IssueMessage.Builder builderForValue) {
          if (issuesBuilder_ == null) {
            ensureIssuesIsMutable();
            issues_.add(index, builderForValue.build());
            onChanged();
          } else {
            issuesBuilder_.addMessage(index, builderForValue.build());
          }
          return this;
        }
        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public Builder addAllIssues(
            java.lang.Iterable values) {
          if (issuesBuilder_ == null) {
            ensureIssuesIsMutable();
            com.google.protobuf.AbstractMessageLite.Builder.addAll(
                values, issues_);
            onChanged();
          } else {
            issuesBuilder_.addAllMessages(values);
          }
          return this;
        }
        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public Builder clearIssues() {
          if (issuesBuilder_ == null) {
            issues_ = java.util.Collections.emptyList();
            bitField0_ = (bitField0_ & ~0x00000002);
            onChanged();
          } else {
            issuesBuilder_.clear();
          }
          return this;
        }
        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public Builder removeIssues(int index) {
          if (issuesBuilder_ == null) {
            ensureIssuesIsMutable();
            issues_.remove(index);
            onChanged();
          } else {
            issuesBuilder_.remove(index);
          }
          return this;
        }
        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public tech.ydb.proto.YdbIssueMessage.IssueMessage.Builder getIssuesBuilder(
            int index) {
          return getIssuesFieldBuilder().getBuilder(index);
        }
        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public tech.ydb.proto.YdbIssueMessage.IssueMessageOrBuilder getIssuesOrBuilder(
            int index) {
          if (issuesBuilder_ == null) {
            return issues_.get(index);  } else {
            return issuesBuilder_.getMessageOrBuilder(index);
          }
        }
        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public java.util.List 
             getIssuesOrBuilderList() {
          if (issuesBuilder_ != null) {
            return issuesBuilder_.getMessageOrBuilderList();
          } else {
            return java.util.Collections.unmodifiableList(issues_);
          }
        }
        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public tech.ydb.proto.YdbIssueMessage.IssueMessage.Builder addIssuesBuilder() {
          return getIssuesFieldBuilder().addBuilder(
              tech.ydb.proto.YdbIssueMessage.IssueMessage.getDefaultInstance());
        }
        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public tech.ydb.proto.YdbIssueMessage.IssueMessage.Builder addIssuesBuilder(
            int index) {
          return getIssuesFieldBuilder().addBuilder(
              index, tech.ydb.proto.YdbIssueMessage.IssueMessage.getDefaultInstance());
        }
        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public java.util.List 
             getIssuesBuilderList() {
          return getIssuesFieldBuilder().getBuilderList();
        }
        private com.google.protobuf.RepeatedFieldBuilderV3<
            tech.ydb.proto.YdbIssueMessage.IssueMessage, tech.ydb.proto.YdbIssueMessage.IssueMessage.Builder, tech.ydb.proto.YdbIssueMessage.IssueMessageOrBuilder> 
            getIssuesFieldBuilder() {
          if (issuesBuilder_ == null) {
            issuesBuilder_ = new com.google.protobuf.RepeatedFieldBuilderV3<
                tech.ydb.proto.YdbIssueMessage.IssueMessage, tech.ydb.proto.YdbIssueMessage.IssueMessage.Builder, tech.ydb.proto.YdbIssueMessage.IssueMessageOrBuilder>(
                    issues_,
                    ((bitField0_ & 0x00000002) != 0),
                    getParentForChildren(),
                    isClean());
            issues_ = null;
          }
          return issuesBuilder_;
        }

        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSession, tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSession.Builder, tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSessionOrBuilder> stopDirectReadPartitionSessionBuilder_;
        /**
         * .Ydb.Topic.StreamDirectReadMessage.StopDirectReadPartitionSession stop_direct_read_partition_session = 3;
         * @return Whether the stopDirectReadPartitionSession field is set.
         */
        @java.lang.Override
        public boolean hasStopDirectReadPartitionSession() {
          return serverMessageCase_ == 3;
        }
        /**
         * .Ydb.Topic.StreamDirectReadMessage.StopDirectReadPartitionSession stop_direct_read_partition_session = 3;
         * @return The stopDirectReadPartitionSession.
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSession getStopDirectReadPartitionSession() {
          if (stopDirectReadPartitionSessionBuilder_ == null) {
            if (serverMessageCase_ == 3) {
              return (tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSession) serverMessage_;
            }
            return tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSession.getDefaultInstance();
          } else {
            if (serverMessageCase_ == 3) {
              return stopDirectReadPartitionSessionBuilder_.getMessage();
            }
            return tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSession.getDefaultInstance();
          }
        }
        /**
         * .Ydb.Topic.StreamDirectReadMessage.StopDirectReadPartitionSession stop_direct_read_partition_session = 3;
         */
        public Builder setStopDirectReadPartitionSession(tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSession value) {
          if (stopDirectReadPartitionSessionBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            serverMessage_ = value;
            onChanged();
          } else {
            stopDirectReadPartitionSessionBuilder_.setMessage(value);
          }
          serverMessageCase_ = 3;
          return this;
        }
        /**
         * .Ydb.Topic.StreamDirectReadMessage.StopDirectReadPartitionSession stop_direct_read_partition_session = 3;
         */
        public Builder setStopDirectReadPartitionSession(
            tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSession.Builder builderForValue) {
          if (stopDirectReadPartitionSessionBuilder_ == null) {
            serverMessage_ = builderForValue.build();
            onChanged();
          } else {
            stopDirectReadPartitionSessionBuilder_.setMessage(builderForValue.build());
          }
          serverMessageCase_ = 3;
          return this;
        }
        /**
         * .Ydb.Topic.StreamDirectReadMessage.StopDirectReadPartitionSession stop_direct_read_partition_session = 3;
         */
        public Builder mergeStopDirectReadPartitionSession(tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSession value) {
          if (stopDirectReadPartitionSessionBuilder_ == null) {
            if (serverMessageCase_ == 3 &&
                serverMessage_ != tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSession.getDefaultInstance()) {
              serverMessage_ = tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSession.newBuilder((tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSession) serverMessage_)
                  .mergeFrom(value).buildPartial();
            } else {
              serverMessage_ = value;
            }
            onChanged();
          } else {
            if (serverMessageCase_ == 3) {
              stopDirectReadPartitionSessionBuilder_.mergeFrom(value);
            } else {
              stopDirectReadPartitionSessionBuilder_.setMessage(value);
            }
          }
          serverMessageCase_ = 3;
          return this;
        }
        /**
         * .Ydb.Topic.StreamDirectReadMessage.StopDirectReadPartitionSession stop_direct_read_partition_session = 3;
         */
        public Builder clearStopDirectReadPartitionSession() {
          if (stopDirectReadPartitionSessionBuilder_ == null) {
            if (serverMessageCase_ == 3) {
              serverMessageCase_ = 0;
              serverMessage_ = null;
              onChanged();
            }
          } else {
            if (serverMessageCase_ == 3) {
              serverMessageCase_ = 0;
              serverMessage_ = null;
            }
            stopDirectReadPartitionSessionBuilder_.clear();
          }
          return this;
        }
        /**
         * .Ydb.Topic.StreamDirectReadMessage.StopDirectReadPartitionSession stop_direct_read_partition_session = 3;
         */
        public tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSession.Builder getStopDirectReadPartitionSessionBuilder() {
          return getStopDirectReadPartitionSessionFieldBuilder().getBuilder();
        }
        /**
         * .Ydb.Topic.StreamDirectReadMessage.StopDirectReadPartitionSession stop_direct_read_partition_session = 3;
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSessionOrBuilder getStopDirectReadPartitionSessionOrBuilder() {
          if ((serverMessageCase_ == 3) && (stopDirectReadPartitionSessionBuilder_ != null)) {
            return stopDirectReadPartitionSessionBuilder_.getMessageOrBuilder();
          } else {
            if (serverMessageCase_ == 3) {
              return (tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSession) serverMessage_;
            }
            return tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSession.getDefaultInstance();
          }
        }
        /**
         * .Ydb.Topic.StreamDirectReadMessage.StopDirectReadPartitionSession stop_direct_read_partition_session = 3;
         */
        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSession, tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSession.Builder, tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSessionOrBuilder> 
            getStopDirectReadPartitionSessionFieldBuilder() {
          if (stopDirectReadPartitionSessionBuilder_ == null) {
            if (!(serverMessageCase_ == 3)) {
              serverMessage_ = tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSession.getDefaultInstance();
            }
            stopDirectReadPartitionSessionBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
                tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSession, tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSession.Builder, tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSessionOrBuilder>(
                    (tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSession) serverMessage_,
                    getParentForChildren(),
                    isClean());
            serverMessage_ = null;
          }
          serverMessageCase_ = 3;
          onChanged();
          return stopDirectReadPartitionSessionBuilder_;
        }

        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponse, tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponse.Builder, tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponseOrBuilder> directReadResponseBuilder_;
        /**
         * .Ydb.Topic.StreamDirectReadMessage.DirectReadResponse direct_read_response = 4;
         * @return Whether the directReadResponse field is set.
         */
        @java.lang.Override
        public boolean hasDirectReadResponse() {
          return serverMessageCase_ == 4;
        }
        /**
         * .Ydb.Topic.StreamDirectReadMessage.DirectReadResponse direct_read_response = 4;
         * @return The directReadResponse.
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponse getDirectReadResponse() {
          if (directReadResponseBuilder_ == null) {
            if (serverMessageCase_ == 4) {
              return (tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponse) serverMessage_;
            }
            return tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponse.getDefaultInstance();
          } else {
            if (serverMessageCase_ == 4) {
              return directReadResponseBuilder_.getMessage();
            }
            return tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponse.getDefaultInstance();
          }
        }
        /**
         * .Ydb.Topic.StreamDirectReadMessage.DirectReadResponse direct_read_response = 4;
         */
        public Builder setDirectReadResponse(tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponse value) {
          if (directReadResponseBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            serverMessage_ = value;
            onChanged();
          } else {
            directReadResponseBuilder_.setMessage(value);
          }
          serverMessageCase_ = 4;
          return this;
        }
        /**
         * .Ydb.Topic.StreamDirectReadMessage.DirectReadResponse direct_read_response = 4;
         */
        public Builder setDirectReadResponse(
            tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponse.Builder builderForValue) {
          if (directReadResponseBuilder_ == null) {
            serverMessage_ = builderForValue.build();
            onChanged();
          } else {
            directReadResponseBuilder_.setMessage(builderForValue.build());
          }
          serverMessageCase_ = 4;
          return this;
        }
        /**
         * .Ydb.Topic.StreamDirectReadMessage.DirectReadResponse direct_read_response = 4;
         */
        public Builder mergeDirectReadResponse(tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponse value) {
          if (directReadResponseBuilder_ == null) {
            if (serverMessageCase_ == 4 &&
                serverMessage_ != tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponse.getDefaultInstance()) {
              serverMessage_ = tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponse.newBuilder((tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponse) serverMessage_)
                  .mergeFrom(value).buildPartial();
            } else {
              serverMessage_ = value;
            }
            onChanged();
          } else {
            if (serverMessageCase_ == 4) {
              directReadResponseBuilder_.mergeFrom(value);
            } else {
              directReadResponseBuilder_.setMessage(value);
            }
          }
          serverMessageCase_ = 4;
          return this;
        }
        /**
         * .Ydb.Topic.StreamDirectReadMessage.DirectReadResponse direct_read_response = 4;
         */
        public Builder clearDirectReadResponse() {
          if (directReadResponseBuilder_ == null) {
            if (serverMessageCase_ == 4) {
              serverMessageCase_ = 0;
              serverMessage_ = null;
              onChanged();
            }
          } else {
            if (serverMessageCase_ == 4) {
              serverMessageCase_ = 0;
              serverMessage_ = null;
            }
            directReadResponseBuilder_.clear();
          }
          return this;
        }
        /**
         * .Ydb.Topic.StreamDirectReadMessage.DirectReadResponse direct_read_response = 4;
         */
        public tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponse.Builder getDirectReadResponseBuilder() {
          return getDirectReadResponseFieldBuilder().getBuilder();
        }
        /**
         * .Ydb.Topic.StreamDirectReadMessage.DirectReadResponse direct_read_response = 4;
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponseOrBuilder getDirectReadResponseOrBuilder() {
          if ((serverMessageCase_ == 4) && (directReadResponseBuilder_ != null)) {
            return directReadResponseBuilder_.getMessageOrBuilder();
          } else {
            if (serverMessageCase_ == 4) {
              return (tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponse) serverMessage_;
            }
            return tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponse.getDefaultInstance();
          }
        }
        /**
         * .Ydb.Topic.StreamDirectReadMessage.DirectReadResponse direct_read_response = 4;
         */
        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponse, tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponse.Builder, tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponseOrBuilder> 
            getDirectReadResponseFieldBuilder() {
          if (directReadResponseBuilder_ == null) {
            if (!(serverMessageCase_ == 4)) {
              serverMessage_ = tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponse.getDefaultInstance();
            }
            directReadResponseBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
                tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponse, tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponse.Builder, tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponseOrBuilder>(
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                    getParentForChildren(),
                    isClean());
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          serverMessageCase_ = 4;
          onChanged();
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        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse, tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse.Builder, tech.ydb.proto.topic.YdbTopic.UpdateTokenResponseOrBuilder> updateTokenResponseBuilder_;
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         * .Ydb.Topic.UpdateTokenResponse update_token_response = 5;
         * @return Whether the updateTokenResponse field is set.
         */
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        public boolean hasUpdateTokenResponse() {
          return serverMessageCase_ == 5;
        }
        /**
         * .Ydb.Topic.UpdateTokenResponse update_token_response = 5;
         * @return The updateTokenResponse.
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse getUpdateTokenResponse() {
          if (updateTokenResponseBuilder_ == null) {
            if (serverMessageCase_ == 5) {
              return (tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse) serverMessage_;
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        /**
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         */
        public Builder setUpdateTokenResponse(tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse value) {
          if (updateTokenResponseBuilder_ == null) {
            if (value == null) {
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            onChanged();
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          serverMessageCase_ = 5;
          return this;
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         * .Ydb.Topic.UpdateTokenResponse update_token_response = 5;
         */
        public Builder setUpdateTokenResponse(
            tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse.Builder builderForValue) {
          if (updateTokenResponseBuilder_ == null) {
            serverMessage_ = builderForValue.build();
            onChanged();
          } else {
            updateTokenResponseBuilder_.setMessage(builderForValue.build());
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          serverMessageCase_ = 5;
          return this;
        }
        /**
         * .Ydb.Topic.UpdateTokenResponse update_token_response = 5;
         */
        public Builder mergeUpdateTokenResponse(tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse value) {
          if (updateTokenResponseBuilder_ == null) {
            if (serverMessageCase_ == 5 &&
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          serverMessageCase_ = 5;
          return this;
        }
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         * .Ydb.Topic.UpdateTokenResponse update_token_response = 5;
         */
        public Builder clearUpdateTokenResponse() {
          if (updateTokenResponseBuilder_ == null) {
            if (serverMessageCase_ == 5) {
              serverMessageCase_ = 0;
              serverMessage_ = null;
              onChanged();
            }
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              serverMessage_ = null;
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            updateTokenResponseBuilder_.clear();
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          return this;
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        /**
         * .Ydb.Topic.UpdateTokenResponse update_token_response = 5;
         */
        public tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse.Builder getUpdateTokenResponseBuilder() {
          return getUpdateTokenResponseFieldBuilder().getBuilder();
        }
        /**
         * .Ydb.Topic.UpdateTokenResponse update_token_response = 5;
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.UpdateTokenResponseOrBuilder getUpdateTokenResponseOrBuilder() {
          if ((serverMessageCase_ == 5) && (updateTokenResponseBuilder_ != null)) {
            return updateTokenResponseBuilder_.getMessageOrBuilder();
          } else {
            if (serverMessageCase_ == 5) {
              return (tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse) serverMessage_;
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            return tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse.getDefaultInstance();
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        /**
         * .Ydb.Topic.UpdateTokenResponse update_token_response = 5;
         */
        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse, tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse.Builder, tech.ydb.proto.topic.YdbTopic.UpdateTokenResponseOrBuilder> 
            getUpdateTokenResponseFieldBuilder() {
          if (updateTokenResponseBuilder_ == null) {
            if (!(serverMessageCase_ == 5)) {
              serverMessage_ = tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse.getDefaultInstance();
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                tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse, tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse.Builder, tech.ydb.proto.topic.YdbTopic.UpdateTokenResponseOrBuilder>(
                    (tech.ydb.proto.topic.YdbTopic.UpdateTokenResponse) serverMessage_,
                    getParentForChildren(),
                    isClean());
            serverMessage_ = null;
          }
          serverMessageCase_ = 5;
          onChanged();
          return updateTokenResponseBuilder_;
        }
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        public final Builder setUnknownFields(
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        @java.lang.Override
        public final Builder mergeUnknownFields(
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        // @@protoc_insertion_point(builder_scope:Ydb.Topic.StreamDirectReadMessage.FromServer)
      }

      // @@protoc_insertion_point(class_scope:Ydb.Topic.StreamDirectReadMessage.FromServer)
      private static final tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.FromServer DEFAULT_INSTANCE;
      static {
        DEFAULT_INSTANCE = new tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.FromServer();
      }

      public static tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.FromServer getDefaultInstance() {
        return DEFAULT_INSTANCE;
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      private static final com.google.protobuf.Parser
          PARSER = new com.google.protobuf.AbstractParser() {
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      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.FromServer getDefaultInstanceForType() {
        return DEFAULT_INSTANCE;
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    }

    public interface InitDirectReadOrBuilder extends
        // @@protoc_insertion_point(interface_extends:Ydb.Topic.StreamDirectReadMessage.InitDirectRead)
        com.google.protobuf.MessageOrBuilder {

      /**
       * 
       * Read session identifier.
       * 
       *
       * string session_id = 1;
       * @return The sessionId.
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      java.lang.String getSessionId();
      /**
       * 
       * Read session identifier.
       * 
       *
       * string session_id = 1;
       * @return The bytes for sessionId.
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      com.google.protobuf.ByteString
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      /**
       * 
       * Topics that will be read by this session.
       * 
       *
       * repeated .Ydb.Topic.StreamDirectReadMessage.InitDirectRead.TopicReadSettings topics_read_settings = 2;
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      java.util.List 
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      /**
       * 
       * Topics that will be read by this session.
       * 
       *
       * repeated .Ydb.Topic.StreamDirectReadMessage.InitDirectRead.TopicReadSettings topics_read_settings = 2;
       */
      tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.InitDirectRead.TopicReadSettings getTopicsReadSettings(int index);
      /**
       * 
       * Topics that will be read by this session.
       * 
       *
       * repeated .Ydb.Topic.StreamDirectReadMessage.InitDirectRead.TopicReadSettings topics_read_settings = 2;
       */
      int getTopicsReadSettingsCount();
      /**
       * 
       * Topics that will be read by this session.
       * 
       *
       * repeated .Ydb.Topic.StreamDirectReadMessage.InitDirectRead.TopicReadSettings topics_read_settings = 2;
       */
      java.util.List 
          getTopicsReadSettingsOrBuilderList();
      /**
       * 
       * Topics that will be read by this session.
       * 
       *
       * repeated .Ydb.Topic.StreamDirectReadMessage.InitDirectRead.TopicReadSettings topics_read_settings = 2;
       */
      tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.InitDirectRead.TopicReadSettingsOrBuilder getTopicsReadSettingsOrBuilder(
          int index);

      /**
       * 
       * Path of consumer that is used for reading by this session.
       * 
       *
       * string consumer = 3;
       * @return The consumer.
       */
      java.lang.String getConsumer();
      /**
       * 
       * Path of consumer that is used for reading by this session.
       * 
       *
       * string consumer = 3;
       * @return The bytes for consumer.
       */
      com.google.protobuf.ByteString
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    }
    /**
     * 
     * Command from client to create and start a direct read session.
     * Server should not send a response to the command.
     * 
     *
     * Protobuf type {@code Ydb.Topic.StreamDirectReadMessage.InitDirectRead}
     */
    public static final class InitDirectRead extends
        com.google.protobuf.GeneratedMessageV3 implements
        // @@protoc_insertion_point(message_implements:Ydb.Topic.StreamDirectReadMessage.InitDirectRead)
        InitDirectReadOrBuilder {
    private static final long serialVersionUID = 0L;
      // Use InitDirectRead.newBuilder() to construct.
      private InitDirectRead(com.google.protobuf.GeneratedMessageV3.Builder builder) {
        super(builder);
      }
      private InitDirectRead() {
        sessionId_ = "";
        topicsReadSettings_ = java.util.Collections.emptyList();
        consumer_ = "";
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      @java.lang.Override
      @SuppressWarnings({"unused"})
      protected java.lang.Object newInstance(
          UnusedPrivateParameter unused) {
        return new InitDirectRead();
      }

      public static final com.google.protobuf.Descriptors.Descriptor
          getDescriptor() {
        return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamDirectReadMessage_InitDirectRead_descriptor;
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      public interface TopicReadSettingsOrBuilder extends
          // @@protoc_insertion_point(interface_extends:Ydb.Topic.StreamDirectReadMessage.InitDirectRead.TopicReadSettings)
          com.google.protobuf.MessageOrBuilder {

        /**
         * 
         * Topic path.
         * 
         *
         * string path = 1;
         * @return The path.
         */
        java.lang.String getPath();
        /**
         * 
         * Topic path.
         * 
         *
         * string path = 1;
         * @return The bytes for path.
         */
        com.google.protobuf.ByteString
            getPathBytes();
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      /**
       * Protobuf type {@code Ydb.Topic.StreamDirectReadMessage.InitDirectRead.TopicReadSettings}
       */
      public static final class TopicReadSettings extends
          com.google.protobuf.GeneratedMessageV3 implements
          // @@protoc_insertion_point(message_implements:Ydb.Topic.StreamDirectReadMessage.InitDirectRead.TopicReadSettings)
          TopicReadSettingsOrBuilder {
      private static final long serialVersionUID = 0L;
        // Use TopicReadSettings.newBuilder() to construct.
        private TopicReadSettings(com.google.protobuf.GeneratedMessageV3.Builder builder) {
          super(builder);
        }
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        @java.lang.Override
        @SuppressWarnings({"unused"})
        protected java.lang.Object newInstance(
            UnusedPrivateParameter unused) {
          return new TopicReadSettings();
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        public static final com.google.protobuf.Descriptors.Descriptor
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          return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamDirectReadMessage_InitDirectRead_TopicReadSettings_descriptor;
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         * 
         * Topic path.
         * 
         *
         * string path = 1;
         * @return The path.
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         * string path = 1;
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       * 
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      public static tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.InitDirectRead parseFrom(
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      public static Builder newBuilder() {
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      public static Builder newBuilder(tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.InitDirectRead prototype) {
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      @java.lang.Override
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        return this == DEFAULT_INSTANCE
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       * 
       *
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              bitField0_ = (bitField0_ & ~0x00000002);
            }
            result.topicsReadSettings_ = topicsReadSettings_;
          } else {
            result.topicsReadSettings_ = topicsReadSettingsBuilder_.build();
          }
        }

        private void buildPartial0(tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.InitDirectRead result) {
          int from_bitField0_ = bitField0_;
          if (((from_bitField0_ & 0x00000001) != 0)) {
            result.sessionId_ = sessionId_;
          }
          if (((from_bitField0_ & 0x00000004) != 0)) {
            result.consumer_ = consumer_;
          }
        }

        @java.lang.Override
        public Builder clone() {
          return super.clone();
        }
        @java.lang.Override
        public Builder setField(
            com.google.protobuf.Descriptors.FieldDescriptor field,
            java.lang.Object value) {
          return super.setField(field, value);
        }
        @java.lang.Override
        public Builder clearField(
            com.google.protobuf.Descriptors.FieldDescriptor field) {
          return super.clearField(field);
        }
        @java.lang.Override
        public Builder clearOneof(
            com.google.protobuf.Descriptors.OneofDescriptor oneof) {
          return super.clearOneof(oneof);
        }
        @java.lang.Override
        public Builder setRepeatedField(
            com.google.protobuf.Descriptors.FieldDescriptor field,
            int index, java.lang.Object value) {
          return super.setRepeatedField(field, index, value);
        }
        @java.lang.Override
        public Builder addRepeatedField(
            com.google.protobuf.Descriptors.FieldDescriptor field,
            java.lang.Object value) {
          return super.addRepeatedField(field, value);
        }
        @java.lang.Override
        public Builder mergeFrom(com.google.protobuf.Message other) {
          if (other instanceof tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.InitDirectRead) {
            return mergeFrom((tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.InitDirectRead)other);
          } else {
            super.mergeFrom(other);
            return this;
          }
        }

        public Builder mergeFrom(tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.InitDirectRead other) {
          if (other == tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.InitDirectRead.getDefaultInstance()) return this;
          if (!other.getSessionId().isEmpty()) {
            sessionId_ = other.sessionId_;
            bitField0_ |= 0x00000001;
            onChanged();
          }
          if (topicsReadSettingsBuilder_ == null) {
            if (!other.topicsReadSettings_.isEmpty()) {
              if (topicsReadSettings_.isEmpty()) {
                topicsReadSettings_ = other.topicsReadSettings_;
                bitField0_ = (bitField0_ & ~0x00000002);
              } else {
                ensureTopicsReadSettingsIsMutable();
                topicsReadSettings_.addAll(other.topicsReadSettings_);
              }
              onChanged();
            }
          } else {
            if (!other.topicsReadSettings_.isEmpty()) {
              if (topicsReadSettingsBuilder_.isEmpty()) {
                topicsReadSettingsBuilder_.dispose();
                topicsReadSettingsBuilder_ = null;
                topicsReadSettings_ = other.topicsReadSettings_;
                bitField0_ = (bitField0_ & ~0x00000002);
                topicsReadSettingsBuilder_ = 
                  com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders ?
                     getTopicsReadSettingsFieldBuilder() : null;
              } else {
                topicsReadSettingsBuilder_.addAllMessages(other.topicsReadSettings_);
              }
            }
          }
          if (!other.getConsumer().isEmpty()) {
            consumer_ = other.consumer_;
            bitField0_ |= 0x00000004;
            onChanged();
          }
          this.mergeUnknownFields(other.getUnknownFields());
          onChanged();
          return this;
        }

        @java.lang.Override
        public final boolean isInitialized() {
          return true;
        }

        @java.lang.Override
        public Builder mergeFrom(
            com.google.protobuf.CodedInputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws java.io.IOException {
          if (extensionRegistry == null) {
            throw new java.lang.NullPointerException();
          }
          try {
            boolean done = false;
            while (!done) {
              int tag = input.readTag();
              switch (tag) {
                case 0:
                  done = true;
                  break;
                case 10: {
                  sessionId_ = input.readStringRequireUtf8();
                  bitField0_ |= 0x00000001;
                  break;
                } // case 10
                case 18: {
                  tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.InitDirectRead.TopicReadSettings m =
                      input.readMessage(
                          tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.InitDirectRead.TopicReadSettings.parser(),
                          extensionRegistry);
                  if (topicsReadSettingsBuilder_ == null) {
                    ensureTopicsReadSettingsIsMutable();
                    topicsReadSettings_.add(m);
                  } else {
                    topicsReadSettingsBuilder_.addMessage(m);
                  }
                  break;
                } // case 18
                case 26: {
                  consumer_ = input.readStringRequireUtf8();
                  bitField0_ |= 0x00000004;
                  break;
                } // case 26
                default: {
                  if (!super.parseUnknownField(input, extensionRegistry, tag)) {
                    done = true; // was an endgroup tag
                  }
                  break;
                } // default:
              } // switch (tag)
            } // while (!done)
          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
            throw e.unwrapIOException();
          } finally {
            onChanged();
          } // finally
          return this;
        }
        private int bitField0_;

        private java.lang.Object sessionId_ = "";
        /**
         * 
         * Read session identifier.
         * 
         *
         * string session_id = 1;
         * @return The sessionId.
         */
        public java.lang.String getSessionId() {
          java.lang.Object ref = sessionId_;
          if (!(ref instanceof java.lang.String)) {
            com.google.protobuf.ByteString bs =
                (com.google.protobuf.ByteString) ref;
            java.lang.String s = bs.toStringUtf8();
            sessionId_ = s;
            return s;
          } else {
            return (java.lang.String) ref;
          }
        }
        /**
         * 
         * Read session identifier.
         * 
         *
         * string session_id = 1;
         * @return The bytes for sessionId.
         */
        public com.google.protobuf.ByteString
            getSessionIdBytes() {
          java.lang.Object ref = sessionId_;
          if (ref instanceof String) {
            com.google.protobuf.ByteString b = 
                com.google.protobuf.ByteString.copyFromUtf8(
                    (java.lang.String) ref);
            sessionId_ = b;
            return b;
          } else {
            return (com.google.protobuf.ByteString) ref;
          }
        }
        /**
         * 
         * Read session identifier.
         * 
         *
         * string session_id = 1;
         * @param value The sessionId to set.
         * @return This builder for chaining.
         */
        public Builder setSessionId(
            java.lang.String value) {
          if (value == null) { throw new NullPointerException(); }
          sessionId_ = value;
          bitField0_ |= 0x00000001;
          onChanged();
          return this;
        }
        /**
         * 
         * Read session identifier.
         * 
         *
         * string session_id = 1;
         * @return This builder for chaining.
         */
        public Builder clearSessionId() {
          sessionId_ = getDefaultInstance().getSessionId();
          bitField0_ = (bitField0_ & ~0x00000001);
          onChanged();
          return this;
        }
        /**
         * 
         * Read session identifier.
         * 
         *
         * string session_id = 1;
         * @param value The bytes for sessionId to set.
         * @return This builder for chaining.
         */
        public Builder setSessionIdBytes(
            com.google.protobuf.ByteString value) {
          if (value == null) { throw new NullPointerException(); }
          checkByteStringIsUtf8(value);
          sessionId_ = value;
          bitField0_ |= 0x00000001;
          onChanged();
          return this;
        }

        private java.util.List topicsReadSettings_ =
          java.util.Collections.emptyList();
        private void ensureTopicsReadSettingsIsMutable() {
          if (!((bitField0_ & 0x00000002) != 0)) {
            topicsReadSettings_ = new java.util.ArrayList(topicsReadSettings_);
            bitField0_ |= 0x00000002;
           }
        }

        private com.google.protobuf.RepeatedFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.InitDirectRead.TopicReadSettings, tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.InitDirectRead.TopicReadSettings.Builder, tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.InitDirectRead.TopicReadSettingsOrBuilder> topicsReadSettingsBuilder_;

        /**
         * 
         * Topics that will be read by this session.
         * 
         *
         * repeated .Ydb.Topic.StreamDirectReadMessage.InitDirectRead.TopicReadSettings topics_read_settings = 2;
         */
        public java.util.List getTopicsReadSettingsList() {
          if (topicsReadSettingsBuilder_ == null) {
            return java.util.Collections.unmodifiableList(topicsReadSettings_);
          } else {
            return topicsReadSettingsBuilder_.getMessageList();
          }
        }
        /**
         * 
         * Topics that will be read by this session.
         * 
         *
         * repeated .Ydb.Topic.StreamDirectReadMessage.InitDirectRead.TopicReadSettings topics_read_settings = 2;
         */
        public int getTopicsReadSettingsCount() {
          if (topicsReadSettingsBuilder_ == null) {
            return topicsReadSettings_.size();
          } else {
            return topicsReadSettingsBuilder_.getCount();
          }
        }
        /**
         * 
         * Topics that will be read by this session.
         * 
         *
         * repeated .Ydb.Topic.StreamDirectReadMessage.InitDirectRead.TopicReadSettings topics_read_settings = 2;
         */
        public tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.InitDirectRead.TopicReadSettings getTopicsReadSettings(int index) {
          if (topicsReadSettingsBuilder_ == null) {
            return topicsReadSettings_.get(index);
          } else {
            return topicsReadSettingsBuilder_.getMessage(index);
          }
        }
        /**
         * 
         * Topics that will be read by this session.
         * 
         *
         * repeated .Ydb.Topic.StreamDirectReadMessage.InitDirectRead.TopicReadSettings topics_read_settings = 2;
         */
        public Builder setTopicsReadSettings(
            int index, tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.InitDirectRead.TopicReadSettings value) {
          if (topicsReadSettingsBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            ensureTopicsReadSettingsIsMutable();
            topicsReadSettings_.set(index, value);
            onChanged();
          } else {
            topicsReadSettingsBuilder_.setMessage(index, value);
          }
          return this;
        }
        /**
         * 
         * Topics that will be read by this session.
         * 
         *
         * repeated .Ydb.Topic.StreamDirectReadMessage.InitDirectRead.TopicReadSettings topics_read_settings = 2;
         */
        public Builder setTopicsReadSettings(
            int index, tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.InitDirectRead.TopicReadSettings.Builder builderForValue) {
          if (topicsReadSettingsBuilder_ == null) {
            ensureTopicsReadSettingsIsMutable();
            topicsReadSettings_.set(index, builderForValue.build());
            onChanged();
          } else {
            topicsReadSettingsBuilder_.setMessage(index, builderForValue.build());
          }
          return this;
        }
        /**
         * 
         * Topics that will be read by this session.
         * 
         *
         * repeated .Ydb.Topic.StreamDirectReadMessage.InitDirectRead.TopicReadSettings topics_read_settings = 2;
         */
        public Builder addTopicsReadSettings(tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.InitDirectRead.TopicReadSettings value) {
          if (topicsReadSettingsBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            ensureTopicsReadSettingsIsMutable();
            topicsReadSettings_.add(value);
            onChanged();
          } else {
            topicsReadSettingsBuilder_.addMessage(value);
          }
          return this;
        }
        /**
         * 
         * Topics that will be read by this session.
         * 
         *
         * repeated .Ydb.Topic.StreamDirectReadMessage.InitDirectRead.TopicReadSettings topics_read_settings = 2;
         */
        public Builder addTopicsReadSettings(
            int index, tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.InitDirectRead.TopicReadSettings value) {
          if (topicsReadSettingsBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            ensureTopicsReadSettingsIsMutable();
            topicsReadSettings_.add(index, value);
            onChanged();
          } else {
            topicsReadSettingsBuilder_.addMessage(index, value);
          }
          return this;
        }
        /**
         * 
         * Topics that will be read by this session.
         * 
         *
         * repeated .Ydb.Topic.StreamDirectReadMessage.InitDirectRead.TopicReadSettings topics_read_settings = 2;
         */
        public Builder addTopicsReadSettings(
            tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.InitDirectRead.TopicReadSettings.Builder builderForValue) {
          if (topicsReadSettingsBuilder_ == null) {
            ensureTopicsReadSettingsIsMutable();
            topicsReadSettings_.add(builderForValue.build());
            onChanged();
          } else {
            topicsReadSettingsBuilder_.addMessage(builderForValue.build());
          }
          return this;
        }
        /**
         * 
         * Topics that will be read by this session.
         * 
         *
         * repeated .Ydb.Topic.StreamDirectReadMessage.InitDirectRead.TopicReadSettings topics_read_settings = 2;
         */
        public Builder addTopicsReadSettings(
            int index, tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.InitDirectRead.TopicReadSettings.Builder builderForValue) {
          if (topicsReadSettingsBuilder_ == null) {
            ensureTopicsReadSettingsIsMutable();
            topicsReadSettings_.add(index, builderForValue.build());
            onChanged();
          } else {
            topicsReadSettingsBuilder_.addMessage(index, builderForValue.build());
          }
          return this;
        }
        /**
         * 
         * Topics that will be read by this session.
         * 
         *
         * repeated .Ydb.Topic.StreamDirectReadMessage.InitDirectRead.TopicReadSettings topics_read_settings = 2;
         */
        public Builder addAllTopicsReadSettings(
            java.lang.Iterable values) {
          if (topicsReadSettingsBuilder_ == null) {
            ensureTopicsReadSettingsIsMutable();
            com.google.protobuf.AbstractMessageLite.Builder.addAll(
                values, topicsReadSettings_);
            onChanged();
          } else {
            topicsReadSettingsBuilder_.addAllMessages(values);
          }
          return this;
        }
        /**
         * 
         * Topics that will be read by this session.
         * 
         *
         * repeated .Ydb.Topic.StreamDirectReadMessage.InitDirectRead.TopicReadSettings topics_read_settings = 2;
         */
        public Builder clearTopicsReadSettings() {
          if (topicsReadSettingsBuilder_ == null) {
            topicsReadSettings_ = java.util.Collections.emptyList();
            bitField0_ = (bitField0_ & ~0x00000002);
            onChanged();
          } else {
            topicsReadSettingsBuilder_.clear();
          }
          return this;
        }
        /**
         * 
         * Topics that will be read by this session.
         * 
         *
         * repeated .Ydb.Topic.StreamDirectReadMessage.InitDirectRead.TopicReadSettings topics_read_settings = 2;
         */
        public Builder removeTopicsReadSettings(int index) {
          if (topicsReadSettingsBuilder_ == null) {
            ensureTopicsReadSettingsIsMutable();
            topicsReadSettings_.remove(index);
            onChanged();
          } else {
            topicsReadSettingsBuilder_.remove(index);
          }
          return this;
        }
        /**
         * 
         * Topics that will be read by this session.
         * 
         *
         * repeated .Ydb.Topic.StreamDirectReadMessage.InitDirectRead.TopicReadSettings topics_read_settings = 2;
         */
        public tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.InitDirectRead.TopicReadSettings.Builder getTopicsReadSettingsBuilder(
            int index) {
          return getTopicsReadSettingsFieldBuilder().getBuilder(index);
        }
        /**
         * 
         * Topics that will be read by this session.
         * 
         *
         * repeated .Ydb.Topic.StreamDirectReadMessage.InitDirectRead.TopicReadSettings topics_read_settings = 2;
         */
        public tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.InitDirectRead.TopicReadSettingsOrBuilder getTopicsReadSettingsOrBuilder(
            int index) {
          if (topicsReadSettingsBuilder_ == null) {
            return topicsReadSettings_.get(index);  } else {
            return topicsReadSettingsBuilder_.getMessageOrBuilder(index);
          }
        }
        /**
         * 
         * Topics that will be read by this session.
         * 
         *
         * repeated .Ydb.Topic.StreamDirectReadMessage.InitDirectRead.TopicReadSettings topics_read_settings = 2;
         */
        public java.util.List 
             getTopicsReadSettingsOrBuilderList() {
          if (topicsReadSettingsBuilder_ != null) {
            return topicsReadSettingsBuilder_.getMessageOrBuilderList();
          } else {
            return java.util.Collections.unmodifiableList(topicsReadSettings_);
          }
        }
        /**
         * 
         * Topics that will be read by this session.
         * 
         *
         * repeated .Ydb.Topic.StreamDirectReadMessage.InitDirectRead.TopicReadSettings topics_read_settings = 2;
         */
        public tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.InitDirectRead.TopicReadSettings.Builder addTopicsReadSettingsBuilder() {
          return getTopicsReadSettingsFieldBuilder().addBuilder(
              tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.InitDirectRead.TopicReadSettings.getDefaultInstance());
        }
        /**
         * 
         * Topics that will be read by this session.
         * 
         *
         * repeated .Ydb.Topic.StreamDirectReadMessage.InitDirectRead.TopicReadSettings topics_read_settings = 2;
         */
        public tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.InitDirectRead.TopicReadSettings.Builder addTopicsReadSettingsBuilder(
            int index) {
          return getTopicsReadSettingsFieldBuilder().addBuilder(
              index, tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.InitDirectRead.TopicReadSettings.getDefaultInstance());
        }
        /**
         * 
         * Topics that will be read by this session.
         * 
         *
         * repeated .Ydb.Topic.StreamDirectReadMessage.InitDirectRead.TopicReadSettings topics_read_settings = 2;
         */
        public java.util.List 
             getTopicsReadSettingsBuilderList() {
          return getTopicsReadSettingsFieldBuilder().getBuilderList();
        }
        private com.google.protobuf.RepeatedFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.InitDirectRead.TopicReadSettings, tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.InitDirectRead.TopicReadSettings.Builder, tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.InitDirectRead.TopicReadSettingsOrBuilder> 
            getTopicsReadSettingsFieldBuilder() {
          if (topicsReadSettingsBuilder_ == null) {
            topicsReadSettingsBuilder_ = new com.google.protobuf.RepeatedFieldBuilderV3<
                tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.InitDirectRead.TopicReadSettings, tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.InitDirectRead.TopicReadSettings.Builder, tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.InitDirectRead.TopicReadSettingsOrBuilder>(
                    topicsReadSettings_,
                    ((bitField0_ & 0x00000002) != 0),
                    getParentForChildren(),
                    isClean());
            topicsReadSettings_ = null;
          }
          return topicsReadSettingsBuilder_;
        }

        private java.lang.Object consumer_ = "";
        /**
         * 
         * Path of consumer that is used for reading by this session.
         * 
         *
         * string consumer = 3;
         * @return The consumer.
         */
        public java.lang.String getConsumer() {
          java.lang.Object ref = consumer_;
          if (!(ref instanceof java.lang.String)) {
            com.google.protobuf.ByteString bs =
                (com.google.protobuf.ByteString) ref;
            java.lang.String s = bs.toStringUtf8();
            consumer_ = s;
            return s;
          } else {
            return (java.lang.String) ref;
          }
        }
        /**
         * 
         * Path of consumer that is used for reading by this session.
         * 
         *
         * string consumer = 3;
         * @return The bytes for consumer.
         */
        public com.google.protobuf.ByteString
            getConsumerBytes() {
          java.lang.Object ref = consumer_;
          if (ref instanceof String) {
            com.google.protobuf.ByteString b = 
                com.google.protobuf.ByteString.copyFromUtf8(
                    (java.lang.String) ref);
            consumer_ = b;
            return b;
          } else {
            return (com.google.protobuf.ByteString) ref;
          }
        }
        /**
         * 
         * Path of consumer that is used for reading by this session.
         * 
         *
         * string consumer = 3;
         * @param value The consumer to set.
         * @return This builder for chaining.
         */
        public Builder setConsumer(
            java.lang.String value) {
          if (value == null) { throw new NullPointerException(); }
          consumer_ = value;
          bitField0_ |= 0x00000004;
          onChanged();
          return this;
        }
        /**
         * 
         * Path of consumer that is used for reading by this session.
         * 
         *
         * string consumer = 3;
         * @return This builder for chaining.
         */
        public Builder clearConsumer() {
          consumer_ = getDefaultInstance().getConsumer();
          bitField0_ = (bitField0_ & ~0x00000004);
          onChanged();
          return this;
        }
        /**
         * 
         * Path of consumer that is used for reading by this session.
         * 
         *
         * string consumer = 3;
         * @param value The bytes for consumer to set.
         * @return This builder for chaining.
         */
        public Builder setConsumerBytes(
            com.google.protobuf.ByteString value) {
          if (value == null) { throw new NullPointerException(); }
          checkByteStringIsUtf8(value);
          consumer_ = value;
          bitField0_ |= 0x00000004;
          onChanged();
          return this;
        }
        @java.lang.Override
        public final Builder setUnknownFields(
            final com.google.protobuf.UnknownFieldSet unknownFields) {
          return super.setUnknownFields(unknownFields);
        }

        @java.lang.Override
        public final Builder mergeUnknownFields(
            final com.google.protobuf.UnknownFieldSet unknownFields) {
          return super.mergeUnknownFields(unknownFields);
        }


        // @@protoc_insertion_point(builder_scope:Ydb.Topic.StreamDirectReadMessage.InitDirectRead)
      }

      // @@protoc_insertion_point(class_scope:Ydb.Topic.StreamDirectReadMessage.InitDirectRead)
      private static final tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.InitDirectRead DEFAULT_INSTANCE;
      static {
        DEFAULT_INSTANCE = new tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.InitDirectRead();
      }

      public static tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.InitDirectRead getDefaultInstance() {
        return DEFAULT_INSTANCE;
      }

      private static final com.google.protobuf.Parser
          PARSER = new com.google.protobuf.AbstractParser() {
        @java.lang.Override
        public InitDirectRead parsePartialFrom(
            com.google.protobuf.CodedInputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws com.google.protobuf.InvalidProtocolBufferException {
          Builder builder = newBuilder();
          try {
            builder.mergeFrom(input, extensionRegistry);
          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
            throw e.setUnfinishedMessage(builder.buildPartial());
          } catch (com.google.protobuf.UninitializedMessageException e) {
            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
          } catch (java.io.IOException e) {
            throw new com.google.protobuf.InvalidProtocolBufferException(e)
                .setUnfinishedMessage(builder.buildPartial());
          }
          return builder.buildPartial();
        }
      };

      public static com.google.protobuf.Parser parser() {
        return PARSER;
      }

      @java.lang.Override
      public com.google.protobuf.Parser getParserForType() {
        return PARSER;
      }

      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.InitDirectRead getDefaultInstanceForType() {
        return DEFAULT_INSTANCE;
      }

    }

    public interface StartDirectReadPartitionSessionOrBuilder extends
        // @@protoc_insertion_point(interface_extends:Ydb.Topic.StreamDirectReadMessage.StartDirectReadPartitionSession)
        com.google.protobuf.MessageOrBuilder {

      /**
       * 
       * Partition session identifier.
       * 
       *
       * int64 partition_session_id = 1;
       * @return The partitionSessionId.
       */
      long getPartitionSessionId();

      /**
       * 
       * Upper bound for read request identifiers.
       * 
       *
       * int64 last_direct_read_id = 2;
       * @return The lastDirectReadId.
       */
      long getLastDirectReadId();

      /**
       * 
       * Partition generation.
       * 
       *
       * int64 generation = 3;
       * @return The generation.
       */
      long getGeneration();
    }
    /**
     * 
     * Command from client to create and start a direct read partition session.
     * Server should not send a response to the command.
     * 
     *
     * Protobuf type {@code Ydb.Topic.StreamDirectReadMessage.StartDirectReadPartitionSession}
     */
    public static final class StartDirectReadPartitionSession extends
        com.google.protobuf.GeneratedMessageV3 implements
        // @@protoc_insertion_point(message_implements:Ydb.Topic.StreamDirectReadMessage.StartDirectReadPartitionSession)
        StartDirectReadPartitionSessionOrBuilder {
    private static final long serialVersionUID = 0L;
      // Use StartDirectReadPartitionSession.newBuilder() to construct.
      private StartDirectReadPartitionSession(com.google.protobuf.GeneratedMessageV3.Builder builder) {
        super(builder);
      }
      private StartDirectReadPartitionSession() {
      }

      @java.lang.Override
      @SuppressWarnings({"unused"})
      protected java.lang.Object newInstance(
          UnusedPrivateParameter unused) {
        return new StartDirectReadPartitionSession();
      }

      public static final com.google.protobuf.Descriptors.Descriptor
          getDescriptor() {
        return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamDirectReadMessage_StartDirectReadPartitionSession_descriptor;
      }

      @java.lang.Override
      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
          internalGetFieldAccessorTable() {
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          java.nio.ByteBuffer data)
          throws com.google.protobuf.InvalidProtocolBufferException {
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          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
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          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
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      public static tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StartDirectReadPartitionSession parseFrom(
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          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
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      public Builder newBuilderForType() { return newBuilder(); }
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      protected Builder newBuilderForType(
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      /**
       * 
       * Command from client to create and start a direct read partition session.
       * Server should not send a response to the command.
       * 
       *
       * Protobuf type {@code Ydb.Topic.StreamDirectReadMessage.StartDirectReadPartitionSession}
       */
      public static final class Builder extends
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          // @@protoc_insertion_point(builder_implements:Ydb.Topic.StreamDirectReadMessage.StartDirectReadPartitionSession)
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        private Builder(
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          partitionSessionId_ = 0L;
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          if (bitField0_ != 0) { buildPartial0(result); }
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        public Builder addRepeatedField(
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          if (other instanceof tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StartDirectReadPartitionSession) {
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        public Builder mergeFrom(tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StartDirectReadPartitionSession other) {
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          if (other.getPartitionSessionId() != 0L) {
            setPartitionSessionId(other.getPartitionSessionId());
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          if (other.getLastDirectReadId() != 0L) {
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                  break;
                } // case 16
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        private long partitionSessionId_ ;
        /**
         * 
         * Partition session identifier.
         * 
         *
         * int64 partition_session_id = 1;
         * @return The partitionSessionId.
         */
        @java.lang.Override
        public long getPartitionSessionId() {
          return partitionSessionId_;
        }
        /**
         * 
         * Partition session identifier.
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         *
         * int64 partition_session_id = 1;
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         * @return This builder for chaining.
         */
        public Builder setPartitionSessionId(long value) {

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          onChanged();
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         * 
         * Partition session identifier.
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         * int64 partition_session_id = 1;
         * @return This builder for chaining.
         */
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          bitField0_ = (bitField0_ & ~0x00000001);
          partitionSessionId_ = 0L;
          onChanged();
          return this;
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        private long lastDirectReadId_ ;
        /**
         * 
         * Upper bound for read request identifiers.
         * 
         *
         * int64 last_direct_read_id = 2;
         * @return The lastDirectReadId.
         */
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        public long getLastDirectReadId() {
          return lastDirectReadId_;
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         * 
         * Upper bound for read request identifiers.
         * 
         *
         * int64 last_direct_read_id = 2;
         * @param value The lastDirectReadId to set.
         * @return This builder for chaining.
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        }
        /**
         * 
         * Upper bound for read request identifiers.
         * 
         *
         * int64 last_direct_read_id = 2;
         * @return This builder for chaining.
         */
        public Builder clearLastDirectReadId() {
          bitField0_ = (bitField0_ & ~0x00000002);
          lastDirectReadId_ = 0L;
          onChanged();
          return this;
        }

        private long generation_ ;
        /**
         * 
         * Partition generation.
         * 
         *
         * int64 generation = 3;
         * @return The generation.
         */
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        public long getGeneration() {
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        }
        /**
         * 
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         * 
         *
         * int64 generation = 3;
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         * @return This builder for chaining.
         */
        public Builder setGeneration(long value) {

          generation_ = value;
          bitField0_ |= 0x00000004;
          onChanged();
          return this;
        }
        /**
         * 
         * Partition generation.
         * 
         *
         * int64 generation = 3;
         * @return This builder for chaining.
         */
        public Builder clearGeneration() {
          bitField0_ = (bitField0_ & ~0x00000004);
          generation_ = 0L;
          onChanged();
          return this;
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        public final Builder setUnknownFields(
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        public final Builder mergeUnknownFields(
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          return super.mergeUnknownFields(unknownFields);
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        // @@protoc_insertion_point(builder_scope:Ydb.Topic.StreamDirectReadMessage.StartDirectReadPartitionSession)
      }

      // @@protoc_insertion_point(class_scope:Ydb.Topic.StreamDirectReadMessage.StartDirectReadPartitionSession)
      private static final tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StartDirectReadPartitionSession DEFAULT_INSTANCE;
      static {
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      }

      public static tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StartDirectReadPartitionSession getDefaultInstance() {
        return DEFAULT_INSTANCE;
      }

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        public StartDirectReadPartitionSession parsePartialFrom(
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            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws com.google.protobuf.InvalidProtocolBufferException {
          Builder builder = newBuilder();
          try {
            builder.mergeFrom(input, extensionRegistry);
          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
            throw e.setUnfinishedMessage(builder.buildPartial());
          } catch (com.google.protobuf.UninitializedMessageException e) {
            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
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            throw new com.google.protobuf.InvalidProtocolBufferException(e)
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          return builder.buildPartial();
        }
      };

      public static com.google.protobuf.Parser parser() {
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      public com.google.protobuf.Parser getParserForType() {
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      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StartDirectReadPartitionSession getDefaultInstanceForType() {
        return DEFAULT_INSTANCE;
      }

    }

    public interface StopDirectReadPartitionSessionOrBuilder extends
        // @@protoc_insertion_point(interface_extends:Ydb.Topic.StreamDirectReadMessage.StopDirectReadPartitionSession)
        com.google.protobuf.MessageOrBuilder {

      /**
       * 
       * The reason for the stop.
       * 
       *
       * .Ydb.StatusIds.StatusCode status = 1;
       * @return The enum numeric value on the wire for status.
       */
      int getStatusValue();
      /**
       * 
       * The reason for the stop.
       * 
       *
       * .Ydb.StatusIds.StatusCode status = 1;
       * @return The status.
       */
      tech.ydb.proto.StatusCodesProtos.StatusIds.StatusCode getStatus();

      /**
       * 
       * Issues if any.
       * 
       *
       * repeated .Ydb.Issue.IssueMessage issues = 2;
       */
      java.util.List 
          getIssuesList();
      /**
       * 
       * Issues if any.
       * 
       *
       * repeated .Ydb.Issue.IssueMessage issues = 2;
       */
      tech.ydb.proto.YdbIssueMessage.IssueMessage getIssues(int index);
      /**
       * 
       * Issues if any.
       * 
       *
       * repeated .Ydb.Issue.IssueMessage issues = 2;
       */
      int getIssuesCount();
      /**
       * 
       * Issues if any.
       * 
       *
       * repeated .Ydb.Issue.IssueMessage issues = 2;
       */
      java.util.List 
          getIssuesOrBuilderList();
      /**
       * 
       * Issues if any.
       * 
       *
       * repeated .Ydb.Issue.IssueMessage issues = 2;
       */
      tech.ydb.proto.YdbIssueMessage.IssueMessageOrBuilder getIssuesOrBuilder(
          int index);

      /**
       * 
       * Partition session identifier.
       * 
       *
       * int64 partition_session_id = 3;
       * @return The partitionSessionId.
       */
      long getPartitionSessionId();
    }
    /**
     * 
     * Command from server to stop a direct read partition session.
     * Client should not send a response to the command.
     * 
     *
     * Protobuf type {@code Ydb.Topic.StreamDirectReadMessage.StopDirectReadPartitionSession}
     */
    public static final class StopDirectReadPartitionSession extends
        com.google.protobuf.GeneratedMessageV3 implements
        // @@protoc_insertion_point(message_implements:Ydb.Topic.StreamDirectReadMessage.StopDirectReadPartitionSession)
        StopDirectReadPartitionSessionOrBuilder {
    private static final long serialVersionUID = 0L;
      // Use StopDirectReadPartitionSession.newBuilder() to construct.
      private StopDirectReadPartitionSession(com.google.protobuf.GeneratedMessageV3.Builder builder) {
        super(builder);
      }
      private StopDirectReadPartitionSession() {
        status_ = 0;
        issues_ = java.util.Collections.emptyList();
      }

      @java.lang.Override
      @SuppressWarnings({"unused"})
      protected java.lang.Object newInstance(
          UnusedPrivateParameter unused) {
        return new StopDirectReadPartitionSession();
      }

      public static final com.google.protobuf.Descriptors.Descriptor
          getDescriptor() {
        return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamDirectReadMessage_StopDirectReadPartitionSession_descriptor;
      }

      @java.lang.Override
      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
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      public static final int STATUS_FIELD_NUMBER = 1;
      private int status_ = 0;
      /**
       * 
       * The reason for the stop.
       * 
       *
       * .Ydb.StatusIds.StatusCode status = 1;
       * @return The enum numeric value on the wire for status.
       */
      @java.lang.Override public int getStatusValue() {
        return status_;
      }
      /**
       * 
       * The reason for the stop.
       * 
       *
       * .Ydb.StatusIds.StatusCode status = 1;
       * @return The status.
       */
      @java.lang.Override public tech.ydb.proto.StatusCodesProtos.StatusIds.StatusCode getStatus() {
        tech.ydb.proto.StatusCodesProtos.StatusIds.StatusCode result = tech.ydb.proto.StatusCodesProtos.StatusIds.StatusCode.forNumber(status_);
        return result == null ? tech.ydb.proto.StatusCodesProtos.StatusIds.StatusCode.UNRECOGNIZED : result;
      }

      public static final int ISSUES_FIELD_NUMBER = 2;
      @SuppressWarnings("serial")
      private java.util.List issues_;
      /**
       * 
       * Issues if any.
       * 
       *
       * repeated .Ydb.Issue.IssueMessage issues = 2;
       */
      @java.lang.Override
      public java.util.List getIssuesList() {
        return issues_;
      }
      /**
       * 
       * Issues if any.
       * 
       *
       * repeated .Ydb.Issue.IssueMessage issues = 2;
       */
      @java.lang.Override
      public java.util.List 
          getIssuesOrBuilderList() {
        return issues_;
      }
      /**
       * 
       * Issues if any.
       * 
       *
       * repeated .Ydb.Issue.IssueMessage issues = 2;
       */
      @java.lang.Override
      public int getIssuesCount() {
        return issues_.size();
      }
      /**
       * 
       * Issues if any.
       * 
       *
       * repeated .Ydb.Issue.IssueMessage issues = 2;
       */
      @java.lang.Override
      public tech.ydb.proto.YdbIssueMessage.IssueMessage getIssues(int index) {
        return issues_.get(index);
      }
      /**
       * 
       * Issues if any.
       * 
       *
       * repeated .Ydb.Issue.IssueMessage issues = 2;
       */
      @java.lang.Override
      public tech.ydb.proto.YdbIssueMessage.IssueMessageOrBuilder getIssuesOrBuilder(
          int index) {
        return issues_.get(index);
      }

      public static final int PARTITION_SESSION_ID_FIELD_NUMBER = 3;
      private long partitionSessionId_ = 0L;
      /**
       * 
       * Partition session identifier.
       * 
       *
       * int64 partition_session_id = 3;
       * @return The partitionSessionId.
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        memoizedIsInitialized = 1;
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      @java.lang.Override
      public void writeTo(com.google.protobuf.CodedOutputStream output)
                          throws java.io.IOException {
        if (status_ != tech.ydb.proto.StatusCodesProtos.StatusIds.StatusCode.STATUS_CODE_UNSPECIFIED.getNumber()) {
          output.writeEnum(1, status_);
        }
        for (int i = 0; i < issues_.size(); i++) {
          output.writeMessage(2, issues_.get(i));
        }
        if (partitionSessionId_ != 0L) {
          output.writeInt64(3, partitionSessionId_);
        }
        getUnknownFields().writeTo(output);
      }

      @java.lang.Override
      public int getSerializedSize() {
        int size = memoizedSize;
        if (size != -1) return size;

        size = 0;
        if (status_ != tech.ydb.proto.StatusCodesProtos.StatusIds.StatusCode.STATUS_CODE_UNSPECIFIED.getNumber()) {
          size += com.google.protobuf.CodedOutputStream
            .computeEnumSize(1, status_);
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        for (int i = 0; i < issues_.size(); i++) {
          size += com.google.protobuf.CodedOutputStream
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        if (partitionSessionId_ != 0L) {
          size += com.google.protobuf.CodedOutputStream
            .computeInt64Size(3, partitionSessionId_);
        }
        size += getUnknownFields().getSerializedSize();
        memoizedSize = size;
        return size;
      }

      @java.lang.Override
      public boolean equals(final java.lang.Object obj) {
        if (obj == this) {
         return true;
        }
        if (!(obj instanceof tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSession)) {
          return super.equals(obj);
        }
        tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSession other = (tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSession) obj;

        if (status_ != other.status_) return false;
        if (!getIssuesList()
            .equals(other.getIssuesList())) return false;
        if (getPartitionSessionId()
            != other.getPartitionSessionId()) return false;
        if (!getUnknownFields().equals(other.getUnknownFields())) return false;
        return true;
      }

      @java.lang.Override
      public int hashCode() {
        if (memoizedHashCode != 0) {
          return memoizedHashCode;
        }
        int hash = 41;
        hash = (19 * hash) + getDescriptor().hashCode();
        hash = (37 * hash) + STATUS_FIELD_NUMBER;
        hash = (53 * hash) + status_;
        if (getIssuesCount() > 0) {
          hash = (37 * hash) + ISSUES_FIELD_NUMBER;
          hash = (53 * hash) + getIssuesList().hashCode();
        }
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            getPartitionSessionId());
        hash = (29 * hash) + getUnknownFields().hashCode();
        memoizedHashCode = hash;
        return hash;
      }

      public static tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSession parseFrom(
          java.nio.ByteBuffer data)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSession parseFrom(
          java.nio.ByteBuffer data,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data, extensionRegistry);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSession parseFrom(
          com.google.protobuf.ByteString data)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSession parseFrom(
          com.google.protobuf.ByteString data,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data, extensionRegistry);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSession parseFrom(byte[] data)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSession parseFrom(
          byte[] data,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data, extensionRegistry);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSession parseFrom(java.io.InputStream input)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
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      public static tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSession parseFrom(
          java.io.InputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseWithIOException(PARSER, input, extensionRegistry);
      }

      public static tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSession parseDelimitedFrom(java.io.InputStream input)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseDelimitedWithIOException(PARSER, input);
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      public static tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSession parseDelimitedFrom(
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          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
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      public static tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSession parseFrom(
          com.google.protobuf.CodedInputStream input)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseWithIOException(PARSER, input);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSession parseFrom(
          com.google.protobuf.CodedInputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseWithIOException(PARSER, input, extensionRegistry);
      }

      @java.lang.Override
      public Builder newBuilderForType() { return newBuilder(); }
      public static Builder newBuilder() {
        return DEFAULT_INSTANCE.toBuilder();
      }
      public static Builder newBuilder(tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSession prototype) {
        return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
      }
      @java.lang.Override
      public Builder toBuilder() {
        return this == DEFAULT_INSTANCE
            ? new Builder() : new Builder().mergeFrom(this);
      }

      @java.lang.Override
      protected Builder newBuilderForType(
          com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
        Builder builder = new Builder(parent);
        return builder;
      }
      /**
       * 
       * Command from server to stop a direct read partition session.
       * Client should not send a response to the command.
       * 
       *
       * Protobuf type {@code Ydb.Topic.StreamDirectReadMessage.StopDirectReadPartitionSession}
       */
      public static final class Builder extends
          com.google.protobuf.GeneratedMessageV3.Builder implements
          // @@protoc_insertion_point(builder_implements:Ydb.Topic.StreamDirectReadMessage.StopDirectReadPartitionSession)
          tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSessionOrBuilder {
        public static final com.google.protobuf.Descriptors.Descriptor
            getDescriptor() {
          return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamDirectReadMessage_StopDirectReadPartitionSession_descriptor;
        }

        @java.lang.Override
        protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
            internalGetFieldAccessorTable() {
          return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamDirectReadMessage_StopDirectReadPartitionSession_fieldAccessorTable
              .ensureFieldAccessorsInitialized(
                  tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSession.class, tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSession.Builder.class);
        }

        // Construct using tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSession.newBuilder()
        private Builder() {

        }

        private Builder(
            com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
          super(parent);

        }
        @java.lang.Override
        public Builder clear() {
          super.clear();
          bitField0_ = 0;
          status_ = 0;
          if (issuesBuilder_ == null) {
            issues_ = java.util.Collections.emptyList();
          } else {
            issues_ = null;
            issuesBuilder_.clear();
          }
          bitField0_ = (bitField0_ & ~0x00000002);
          partitionSessionId_ = 0L;
          return this;
        }

        @java.lang.Override
        public com.google.protobuf.Descriptors.Descriptor
            getDescriptorForType() {
          return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamDirectReadMessage_StopDirectReadPartitionSession_descriptor;
        }

        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSession getDefaultInstanceForType() {
          return tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSession.getDefaultInstance();
        }

        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSession build() {
          tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSession result = buildPartial();
          if (!result.isInitialized()) {
            throw newUninitializedMessageException(result);
          }
          return result;
        }

        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSession buildPartial() {
          tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSession result = new tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSession(this);
          buildPartialRepeatedFields(result);
          if (bitField0_ != 0) { buildPartial0(result); }
          onBuilt();
          return result;
        }

        private void buildPartialRepeatedFields(tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSession result) {
          if (issuesBuilder_ == null) {
            if (((bitField0_ & 0x00000002) != 0)) {
              issues_ = java.util.Collections.unmodifiableList(issues_);
              bitField0_ = (bitField0_ & ~0x00000002);
            }
            result.issues_ = issues_;
          } else {
            result.issues_ = issuesBuilder_.build();
          }
        }

        private void buildPartial0(tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSession result) {
          int from_bitField0_ = bitField0_;
          if (((from_bitField0_ & 0x00000001) != 0)) {
            result.status_ = status_;
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          if (((from_bitField0_ & 0x00000004) != 0)) {
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        }

        @java.lang.Override
        public Builder clone() {
          return super.clone();
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        @java.lang.Override
        public Builder setField(
            com.google.protobuf.Descriptors.FieldDescriptor field,
            java.lang.Object value) {
          return super.setField(field, value);
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        @java.lang.Override
        public Builder clearField(
            com.google.protobuf.Descriptors.FieldDescriptor field) {
          return super.clearField(field);
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        @java.lang.Override
        public Builder clearOneof(
            com.google.protobuf.Descriptors.OneofDescriptor oneof) {
          return super.clearOneof(oneof);
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        @java.lang.Override
        public Builder setRepeatedField(
            com.google.protobuf.Descriptors.FieldDescriptor field,
            int index, java.lang.Object value) {
          return super.setRepeatedField(field, index, value);
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        @java.lang.Override
        public Builder addRepeatedField(
            com.google.protobuf.Descriptors.FieldDescriptor field,
            java.lang.Object value) {
          return super.addRepeatedField(field, value);
        }
        @java.lang.Override
        public Builder mergeFrom(com.google.protobuf.Message other) {
          if (other instanceof tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSession) {
            return mergeFrom((tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSession)other);
          } else {
            super.mergeFrom(other);
            return this;
          }
        }

        public Builder mergeFrom(tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSession other) {
          if (other == tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSession.getDefaultInstance()) return this;
          if (other.status_ != 0) {
            setStatusValue(other.getStatusValue());
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          if (issuesBuilder_ == null) {
            if (!other.issues_.isEmpty()) {
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                issues_ = other.issues_;
                bitField0_ = (bitField0_ & ~0x00000002);
              } else {
                ensureIssuesIsMutable();
                issues_.addAll(other.issues_);
              }
              onChanged();
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          } else {
            if (!other.issues_.isEmpty()) {
              if (issuesBuilder_.isEmpty()) {
                issuesBuilder_.dispose();
                issuesBuilder_ = null;
                issues_ = other.issues_;
                bitField0_ = (bitField0_ & ~0x00000002);
                issuesBuilder_ = 
                  com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders ?
                     getIssuesFieldBuilder() : null;
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                issuesBuilder_.addAllMessages(other.issues_);
              }
            }
          }
          if (other.getPartitionSessionId() != 0L) {
            setPartitionSessionId(other.getPartitionSessionId());
          }
          this.mergeUnknownFields(other.getUnknownFields());
          onChanged();
          return this;
        }

        @java.lang.Override
        public final boolean isInitialized() {
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        @java.lang.Override
        public Builder mergeFrom(
            com.google.protobuf.CodedInputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws java.io.IOException {
          if (extensionRegistry == null) {
            throw new java.lang.NullPointerException();
          }
          try {
            boolean done = false;
            while (!done) {
              int tag = input.readTag();
              switch (tag) {
                case 0:
                  done = true;
                  break;
                case 8: {
                  status_ = input.readEnum();
                  bitField0_ |= 0x00000001;
                  break;
                } // case 8
                case 18: {
                  tech.ydb.proto.YdbIssueMessage.IssueMessage m =
                      input.readMessage(
                          tech.ydb.proto.YdbIssueMessage.IssueMessage.parser(),
                          extensionRegistry);
                  if (issuesBuilder_ == null) {
                    ensureIssuesIsMutable();
                    issues_.add(m);
                  } else {
                    issuesBuilder_.addMessage(m);
                  }
                  break;
                } // case 18
                case 24: {
                  partitionSessionId_ = input.readInt64();
                  bitField0_ |= 0x00000004;
                  break;
                } // case 24
                default: {
                  if (!super.parseUnknownField(input, extensionRegistry, tag)) {
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              } // switch (tag)
            } // while (!done)
          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
            throw e.unwrapIOException();
          } finally {
            onChanged();
          } // finally
          return this;
        }
        private int bitField0_;

        private int status_ = 0;
        /**
         * 
         * The reason for the stop.
         * 
         *
         * .Ydb.StatusIds.StatusCode status = 1;
         * @return The enum numeric value on the wire for status.
         */
        @java.lang.Override public int getStatusValue() {
          return status_;
        }
        /**
         * 
         * The reason for the stop.
         * 
         *
         * .Ydb.StatusIds.StatusCode status = 1;
         * @param value The enum numeric value on the wire for status to set.
         * @return This builder for chaining.
         */
        public Builder setStatusValue(int value) {
          status_ = value;
          bitField0_ |= 0x00000001;
          onChanged();
          return this;
        }
        /**
         * 
         * The reason for the stop.
         * 
         *
         * .Ydb.StatusIds.StatusCode status = 1;
         * @return The status.
         */
        @java.lang.Override
        public tech.ydb.proto.StatusCodesProtos.StatusIds.StatusCode getStatus() {
          tech.ydb.proto.StatusCodesProtos.StatusIds.StatusCode result = tech.ydb.proto.StatusCodesProtos.StatusIds.StatusCode.forNumber(status_);
          return result == null ? tech.ydb.proto.StatusCodesProtos.StatusIds.StatusCode.UNRECOGNIZED : result;
        }
        /**
         * 
         * The reason for the stop.
         * 
         *
         * .Ydb.StatusIds.StatusCode status = 1;
         * @param value The status to set.
         * @return This builder for chaining.
         */
        public Builder setStatus(tech.ydb.proto.StatusCodesProtos.StatusIds.StatusCode value) {
          if (value == null) {
            throw new NullPointerException();
          }
          bitField0_ |= 0x00000001;
          status_ = value.getNumber();
          onChanged();
          return this;
        }
        /**
         * 
         * The reason for the stop.
         * 
         *
         * .Ydb.StatusIds.StatusCode status = 1;
         * @return This builder for chaining.
         */
        public Builder clearStatus() {
          bitField0_ = (bitField0_ & ~0x00000001);
          status_ = 0;
          onChanged();
          return this;
        }

        private java.util.List issues_ =
          java.util.Collections.emptyList();
        private void ensureIssuesIsMutable() {
          if (!((bitField0_ & 0x00000002) != 0)) {
            issues_ = new java.util.ArrayList(issues_);
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        }

        private com.google.protobuf.RepeatedFieldBuilderV3<
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        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public java.util.List getIssuesList() {
          if (issuesBuilder_ == null) {
            return java.util.Collections.unmodifiableList(issues_);
          } else {
            return issuesBuilder_.getMessageList();
          }
        }
        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public int getIssuesCount() {
          if (issuesBuilder_ == null) {
            return issues_.size();
          } else {
            return issuesBuilder_.getCount();
          }
        }
        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public tech.ydb.proto.YdbIssueMessage.IssueMessage getIssues(int index) {
          if (issuesBuilder_ == null) {
            return issues_.get(index);
          } else {
            return issuesBuilder_.getMessage(index);
          }
        }
        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public Builder setIssues(
            int index, tech.ydb.proto.YdbIssueMessage.IssueMessage value) {
          if (issuesBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            ensureIssuesIsMutable();
            issues_.set(index, value);
            onChanged();
          } else {
            issuesBuilder_.setMessage(index, value);
          }
          return this;
        }
        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public Builder setIssues(
            int index, tech.ydb.proto.YdbIssueMessage.IssueMessage.Builder builderForValue) {
          if (issuesBuilder_ == null) {
            ensureIssuesIsMutable();
            issues_.set(index, builderForValue.build());
            onChanged();
          } else {
            issuesBuilder_.setMessage(index, builderForValue.build());
          }
          return this;
        }
        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public Builder addIssues(tech.ydb.proto.YdbIssueMessage.IssueMessage value) {
          if (issuesBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            ensureIssuesIsMutable();
            issues_.add(value);
            onChanged();
          } else {
            issuesBuilder_.addMessage(value);
          }
          return this;
        }
        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public Builder addIssues(
            int index, tech.ydb.proto.YdbIssueMessage.IssueMessage value) {
          if (issuesBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            ensureIssuesIsMutable();
            issues_.add(index, value);
            onChanged();
          } else {
            issuesBuilder_.addMessage(index, value);
          }
          return this;
        }
        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
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            onChanged();
          } else {
            issuesBuilder_.addMessage(builderForValue.build());
          }
          return this;
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        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public Builder addIssues(
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          if (issuesBuilder_ == null) {
            ensureIssuesIsMutable();
            issues_.add(index, builderForValue.build());
            onChanged();
          } else {
            issuesBuilder_.addMessage(index, builderForValue.build());
          }
          return this;
        }
        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public Builder addAllIssues(
            java.lang.Iterable values) {
          if (issuesBuilder_ == null) {
            ensureIssuesIsMutable();
            com.google.protobuf.AbstractMessageLite.Builder.addAll(
                values, issues_);
            onChanged();
          } else {
            issuesBuilder_.addAllMessages(values);
          }
          return this;
        }
        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public Builder clearIssues() {
          if (issuesBuilder_ == null) {
            issues_ = java.util.Collections.emptyList();
            bitField0_ = (bitField0_ & ~0x00000002);
            onChanged();
          } else {
            issuesBuilder_.clear();
          }
          return this;
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        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public Builder removeIssues(int index) {
          if (issuesBuilder_ == null) {
            ensureIssuesIsMutable();
            issues_.remove(index);
            onChanged();
          } else {
            issuesBuilder_.remove(index);
          }
          return this;
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        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
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         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
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            int index) {
          if (issuesBuilder_ == null) {
            return issues_.get(index);  } else {
            return issuesBuilder_.getMessageOrBuilder(index);
          }
        }
        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public java.util.List 
             getIssuesOrBuilderList() {
          if (issuesBuilder_ != null) {
            return issuesBuilder_.getMessageOrBuilderList();
          } else {
            return java.util.Collections.unmodifiableList(issues_);
          }
        }
        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public tech.ydb.proto.YdbIssueMessage.IssueMessage.Builder addIssuesBuilder() {
          return getIssuesFieldBuilder().addBuilder(
              tech.ydb.proto.YdbIssueMessage.IssueMessage.getDefaultInstance());
        }
        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public tech.ydb.proto.YdbIssueMessage.IssueMessage.Builder addIssuesBuilder(
            int index) {
          return getIssuesFieldBuilder().addBuilder(
              index, tech.ydb.proto.YdbIssueMessage.IssueMessage.getDefaultInstance());
        }
        /**
         * 
         * Issues if any.
         * 
         *
         * repeated .Ydb.Issue.IssueMessage issues = 2;
         */
        public java.util.List 
             getIssuesBuilderList() {
          return getIssuesFieldBuilder().getBuilderList();
        }
        private com.google.protobuf.RepeatedFieldBuilderV3<
            tech.ydb.proto.YdbIssueMessage.IssueMessage, tech.ydb.proto.YdbIssueMessage.IssueMessage.Builder, tech.ydb.proto.YdbIssueMessage.IssueMessageOrBuilder> 
            getIssuesFieldBuilder() {
          if (issuesBuilder_ == null) {
            issuesBuilder_ = new com.google.protobuf.RepeatedFieldBuilderV3<
                tech.ydb.proto.YdbIssueMessage.IssueMessage, tech.ydb.proto.YdbIssueMessage.IssueMessage.Builder, tech.ydb.proto.YdbIssueMessage.IssueMessageOrBuilder>(
                    issues_,
                    ((bitField0_ & 0x00000002) != 0),
                    getParentForChildren(),
                    isClean());
            issues_ = null;
          }
          return issuesBuilder_;
        }

        private long partitionSessionId_ ;
        /**
         * 
         * Partition session identifier.
         * 
         *
         * int64 partition_session_id = 3;
         * @return The partitionSessionId.
         */
        @java.lang.Override
        public long getPartitionSessionId() {
          return partitionSessionId_;
        }
        /**
         * 
         * Partition session identifier.
         * 
         *
         * int64 partition_session_id = 3;
         * @param value The partitionSessionId to set.
         * @return This builder for chaining.
         */
        public Builder setPartitionSessionId(long value) {

          partitionSessionId_ = value;
          bitField0_ |= 0x00000004;
          onChanged();
          return this;
        }
        /**
         * 
         * Partition session identifier.
         * 
         *
         * int64 partition_session_id = 3;
         * @return This builder for chaining.
         */
        public Builder clearPartitionSessionId() {
          bitField0_ = (bitField0_ & ~0x00000004);
          partitionSessionId_ = 0L;
          onChanged();
          return this;
        }
        @java.lang.Override
        public final Builder setUnknownFields(
            final com.google.protobuf.UnknownFieldSet unknownFields) {
          return super.setUnknownFields(unknownFields);
        }

        @java.lang.Override
        public final Builder mergeUnknownFields(
            final com.google.protobuf.UnknownFieldSet unknownFields) {
          return super.mergeUnknownFields(unknownFields);
        }


        // @@protoc_insertion_point(builder_scope:Ydb.Topic.StreamDirectReadMessage.StopDirectReadPartitionSession)
      }

      // @@protoc_insertion_point(class_scope:Ydb.Topic.StreamDirectReadMessage.StopDirectReadPartitionSession)
      private static final tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSession DEFAULT_INSTANCE;
      static {
        DEFAULT_INSTANCE = new tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSession();
      }

      public static tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSession getDefaultInstance() {
        return DEFAULT_INSTANCE;
      }

      private static final com.google.protobuf.Parser
          PARSER = new com.google.protobuf.AbstractParser() {
        @java.lang.Override
        public StopDirectReadPartitionSession parsePartialFrom(
            com.google.protobuf.CodedInputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws com.google.protobuf.InvalidProtocolBufferException {
          Builder builder = newBuilder();
          try {
            builder.mergeFrom(input, extensionRegistry);
          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
            throw e.setUnfinishedMessage(builder.buildPartial());
          } catch (com.google.protobuf.UninitializedMessageException e) {
            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
          } catch (java.io.IOException e) {
            throw new com.google.protobuf.InvalidProtocolBufferException(e)
                .setUnfinishedMessage(builder.buildPartial());
          }
          return builder.buildPartial();
        }
      };

      public static com.google.protobuf.Parser parser() {
        return PARSER;
      }

      @java.lang.Override
      public com.google.protobuf.Parser getParserForType() {
        return PARSER;
      }

      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.StopDirectReadPartitionSession getDefaultInstanceForType() {
        return DEFAULT_INSTANCE;
      }

    }

    public interface DirectReadResponseOrBuilder extends
        // @@protoc_insertion_point(interface_extends:Ydb.Topic.StreamDirectReadMessage.DirectReadResponse)
        com.google.protobuf.MessageOrBuilder {

      /**
       * 
       * Partition session identifier.
       * 
       *
       * int64 partition_session_id = 1;
       * @return The partitionSessionId.
       */
      long getPartitionSessionId();

      /**
       * 
       * Read request identifier.
       * 
       *
       * int64 direct_read_id = 2;
       * @return The directReadId.
       */
      long getDirectReadId();

      /**
       * 
       * Messages data
       * 
       *
       * .Ydb.Topic.StreamReadMessage.ReadResponse.PartitionData partition_data = 3;
       * @return Whether the partitionData field is set.
       */
      boolean hasPartitionData();
      /**
       * 
       * Messages data
       * 
       *
       * .Ydb.Topic.StreamReadMessage.ReadResponse.PartitionData partition_data = 3;
       * @return The partitionData.
       */
      tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData getPartitionData();
      /**
       * 
       * Messages data
       * 
       *
       * .Ydb.Topic.StreamReadMessage.ReadResponse.PartitionData partition_data = 3;
       */
      tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionDataOrBuilder getPartitionDataOrBuilder();
    }
    /**
     * 
     * Messages that have been read directly from the partition node.
     * It's a response to StreamRead.ReadRequest
     * 
     *
     * Protobuf type {@code Ydb.Topic.StreamDirectReadMessage.DirectReadResponse}
     */
    public static final class DirectReadResponse extends
        com.google.protobuf.GeneratedMessageV3 implements
        // @@protoc_insertion_point(message_implements:Ydb.Topic.StreamDirectReadMessage.DirectReadResponse)
        DirectReadResponseOrBuilder {
    private static final long serialVersionUID = 0L;
      // Use DirectReadResponse.newBuilder() to construct.
      private DirectReadResponse(com.google.protobuf.GeneratedMessageV3.Builder builder) {
        super(builder);
      }
      private DirectReadResponse() {
      }

      @java.lang.Override
      @SuppressWarnings({"unused"})
      protected java.lang.Object newInstance(
          UnusedPrivateParameter unused) {
        return new DirectReadResponse();
      }

      public static final com.google.protobuf.Descriptors.Descriptor
          getDescriptor() {
        return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamDirectReadMessage_DirectReadResponse_descriptor;
      }

      @java.lang.Override
      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
          internalGetFieldAccessorTable() {
        return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamDirectReadMessage_DirectReadResponse_fieldAccessorTable
            .ensureFieldAccessorsInitialized(
                tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponse.class, tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponse.Builder.class);
      }

      private int bitField0_;
      public static final int PARTITION_SESSION_ID_FIELD_NUMBER = 1;
      private long partitionSessionId_ = 0L;
      /**
       * 
       * Partition session identifier.
       * 
       *
       * int64 partition_session_id = 1;
       * @return The partitionSessionId.
       */
      @java.lang.Override
      public long getPartitionSessionId() {
        return partitionSessionId_;
      }

      public static final int DIRECT_READ_ID_FIELD_NUMBER = 2;
      private long directReadId_ = 0L;
      /**
       * 
       * Read request identifier.
       * 
       *
       * int64 direct_read_id = 2;
       * @return The directReadId.
       */
      @java.lang.Override
      public long getDirectReadId() {
        return directReadId_;
      }

      public static final int PARTITION_DATA_FIELD_NUMBER = 3;
      private tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData partitionData_;
      /**
       * 
       * Messages data
       * 
       *
       * .Ydb.Topic.StreamReadMessage.ReadResponse.PartitionData partition_data = 3;
       * @return Whether the partitionData field is set.
       */
      @java.lang.Override
      public boolean hasPartitionData() {
        return ((bitField0_ & 0x00000001) != 0);
      }
      /**
       * 
       * Messages data
       * 
       *
       * .Ydb.Topic.StreamReadMessage.ReadResponse.PartitionData partition_data = 3;
       * @return The partitionData.
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData getPartitionData() {
        return partitionData_ == null ? tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData.getDefaultInstance() : partitionData_;
      }
      /**
       * 
       * Messages data
       * 
       *
       * .Ydb.Topic.StreamReadMessage.ReadResponse.PartitionData partition_data = 3;
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionDataOrBuilder getPartitionDataOrBuilder() {
        return partitionData_ == null ? tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData.getDefaultInstance() : partitionData_;
      }

      private byte memoizedIsInitialized = -1;
      @java.lang.Override
      public final boolean isInitialized() {
        byte isInitialized = memoizedIsInitialized;
        if (isInitialized == 1) return true;
        if (isInitialized == 0) return false;

        memoizedIsInitialized = 1;
        return true;
      }

      @java.lang.Override
      public void writeTo(com.google.protobuf.CodedOutputStream output)
                          throws java.io.IOException {
        if (partitionSessionId_ != 0L) {
          output.writeInt64(1, partitionSessionId_);
        }
        if (directReadId_ != 0L) {
          output.writeInt64(2, directReadId_);
        }
        if (((bitField0_ & 0x00000001) != 0)) {
          output.writeMessage(3, getPartitionData());
        }
        getUnknownFields().writeTo(output);
      }

      @java.lang.Override
      public int getSerializedSize() {
        int size = memoizedSize;
        if (size != -1) return size;

        size = 0;
        if (partitionSessionId_ != 0L) {
          size += com.google.protobuf.CodedOutputStream
            .computeInt64Size(1, partitionSessionId_);
        }
        if (directReadId_ != 0L) {
          size += com.google.protobuf.CodedOutputStream
            .computeInt64Size(2, directReadId_);
        }
        if (((bitField0_ & 0x00000001) != 0)) {
          size += com.google.protobuf.CodedOutputStream
            .computeMessageSize(3, getPartitionData());
        }
        size += getUnknownFields().getSerializedSize();
        memoizedSize = size;
        return size;
      }

      @java.lang.Override
      public boolean equals(final java.lang.Object obj) {
        if (obj == this) {
         return true;
        }
        if (!(obj instanceof tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponse)) {
          return super.equals(obj);
        }
        tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponse other = (tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponse) obj;

        if (getPartitionSessionId()
            != other.getPartitionSessionId()) return false;
        if (getDirectReadId()
            != other.getDirectReadId()) return false;
        if (hasPartitionData() != other.hasPartitionData()) return false;
        if (hasPartitionData()) {
          if (!getPartitionData()
              .equals(other.getPartitionData())) return false;
        }
        if (!getUnknownFields().equals(other.getUnknownFields())) return false;
        return true;
      }

      @java.lang.Override
      public int hashCode() {
        if (memoizedHashCode != 0) {
          return memoizedHashCode;
        }
        int hash = 41;
        hash = (19 * hash) + getDescriptor().hashCode();
        hash = (37 * hash) + PARTITION_SESSION_ID_FIELD_NUMBER;
        hash = (53 * hash) + com.google.protobuf.Internal.hashLong(
            getPartitionSessionId());
        hash = (37 * hash) + DIRECT_READ_ID_FIELD_NUMBER;
        hash = (53 * hash) + com.google.protobuf.Internal.hashLong(
            getDirectReadId());
        if (hasPartitionData()) {
          hash = (37 * hash) + PARTITION_DATA_FIELD_NUMBER;
          hash = (53 * hash) + getPartitionData().hashCode();
        }
        hash = (29 * hash) + getUnknownFields().hashCode();
        memoizedHashCode = hash;
        return hash;
      }

      public static tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponse parseFrom(
          java.nio.ByteBuffer data)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponse parseFrom(
          java.nio.ByteBuffer data,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data, extensionRegistry);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponse parseFrom(
          com.google.protobuf.ByteString data)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponse parseFrom(
          com.google.protobuf.ByteString data,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data, extensionRegistry);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponse parseFrom(byte[] data)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponse parseFrom(
          byte[] data,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data, extensionRegistry);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponse parseFrom(java.io.InputStream input)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseWithIOException(PARSER, input);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponse parseFrom(
          java.io.InputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseWithIOException(PARSER, input, extensionRegistry);
      }

      public static tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponse parseDelimitedFrom(java.io.InputStream input)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseDelimitedWithIOException(PARSER, input);
      }

      public static tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponse parseDelimitedFrom(
          java.io.InputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponse parseFrom(
          com.google.protobuf.CodedInputStream input)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseWithIOException(PARSER, input);
      }
      public static tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponse parseFrom(
          com.google.protobuf.CodedInputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseWithIOException(PARSER, input, extensionRegistry);
      }

      @java.lang.Override
      public Builder newBuilderForType() { return newBuilder(); }
      public static Builder newBuilder() {
        return DEFAULT_INSTANCE.toBuilder();
      }
      public static Builder newBuilder(tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponse prototype) {
        return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
      }
      @java.lang.Override
      public Builder toBuilder() {
        return this == DEFAULT_INSTANCE
            ? new Builder() : new Builder().mergeFrom(this);
      }

      @java.lang.Override
      protected Builder newBuilderForType(
          com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
        Builder builder = new Builder(parent);
        return builder;
      }
      /**
       * 
       * Messages that have been read directly from the partition node.
       * It's a response to StreamRead.ReadRequest
       * 
       *
       * Protobuf type {@code Ydb.Topic.StreamDirectReadMessage.DirectReadResponse}
       */
      public static final class Builder extends
          com.google.protobuf.GeneratedMessageV3.Builder implements
          // @@protoc_insertion_point(builder_implements:Ydb.Topic.StreamDirectReadMessage.DirectReadResponse)
          tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponseOrBuilder {
        public static final com.google.protobuf.Descriptors.Descriptor
            getDescriptor() {
          return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamDirectReadMessage_DirectReadResponse_descriptor;
        }

        @java.lang.Override
        protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
            internalGetFieldAccessorTable() {
          return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamDirectReadMessage_DirectReadResponse_fieldAccessorTable
              .ensureFieldAccessorsInitialized(
                  tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponse.class, tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponse.Builder.class);
        }

        // Construct using tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponse.newBuilder()
        private Builder() {
          maybeForceBuilderInitialization();
        }

        private Builder(
            com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
          super(parent);
          maybeForceBuilderInitialization();
        }
        private void maybeForceBuilderInitialization() {
          if (com.google.protobuf.GeneratedMessageV3
                  .alwaysUseFieldBuilders) {
            getPartitionDataFieldBuilder();
          }
        }
        @java.lang.Override
        public Builder clear() {
          super.clear();
          bitField0_ = 0;
          partitionSessionId_ = 0L;
          directReadId_ = 0L;
          partitionData_ = null;
          if (partitionDataBuilder_ != null) {
            partitionDataBuilder_.dispose();
            partitionDataBuilder_ = null;
          }
          return this;
        }

        @java.lang.Override
        public com.google.protobuf.Descriptors.Descriptor
            getDescriptorForType() {
          return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_StreamDirectReadMessage_DirectReadResponse_descriptor;
        }

        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponse getDefaultInstanceForType() {
          return tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponse.getDefaultInstance();
        }

        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponse build() {
          tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponse result = buildPartial();
          if (!result.isInitialized()) {
            throw newUninitializedMessageException(result);
          }
          return result;
        }

        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponse buildPartial() {
          tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponse result = new tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponse(this);
          if (bitField0_ != 0) { buildPartial0(result); }
          onBuilt();
          return result;
        }

        private void buildPartial0(tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponse result) {
          int from_bitField0_ = bitField0_;
          if (((from_bitField0_ & 0x00000001) != 0)) {
            result.partitionSessionId_ = partitionSessionId_;
          }
          if (((from_bitField0_ & 0x00000002) != 0)) {
            result.directReadId_ = directReadId_;
          }
          int to_bitField0_ = 0;
          if (((from_bitField0_ & 0x00000004) != 0)) {
            result.partitionData_ = partitionDataBuilder_ == null
                ? partitionData_
                : partitionDataBuilder_.build();
            to_bitField0_ |= 0x00000001;
          }
          result.bitField0_ |= to_bitField0_;
        }

        @java.lang.Override
        public Builder clone() {
          return super.clone();
        }
        @java.lang.Override
        public Builder setField(
            com.google.protobuf.Descriptors.FieldDescriptor field,
            java.lang.Object value) {
          return super.setField(field, value);
        }
        @java.lang.Override
        public Builder clearField(
            com.google.protobuf.Descriptors.FieldDescriptor field) {
          return super.clearField(field);
        }
        @java.lang.Override
        public Builder clearOneof(
            com.google.protobuf.Descriptors.OneofDescriptor oneof) {
          return super.clearOneof(oneof);
        }
        @java.lang.Override
        public Builder setRepeatedField(
            com.google.protobuf.Descriptors.FieldDescriptor field,
            int index, java.lang.Object value) {
          return super.setRepeatedField(field, index, value);
        }
        @java.lang.Override
        public Builder addRepeatedField(
            com.google.protobuf.Descriptors.FieldDescriptor field,
            java.lang.Object value) {
          return super.addRepeatedField(field, value);
        }
        @java.lang.Override
        public Builder mergeFrom(com.google.protobuf.Message other) {
          if (other instanceof tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponse) {
            return mergeFrom((tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponse)other);
          } else {
            super.mergeFrom(other);
            return this;
          }
        }

        public Builder mergeFrom(tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponse other) {
          if (other == tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage.DirectReadResponse.getDefaultInstance()) return this;
          if (other.getPartitionSessionId() != 0L) {
            setPartitionSessionId(other.getPartitionSessionId());
          }
          if (other.getDirectReadId() != 0L) {
            setDirectReadId(other.getDirectReadId());
          }
          if (other.hasPartitionData()) {
            mergePartitionData(other.getPartitionData());
          }
          this.mergeUnknownFields(other.getUnknownFields());
          onChanged();
          return this;
        }

        @java.lang.Override
        public final boolean isInitialized() {
          return true;
        }

        @java.lang.Override
        public Builder mergeFrom(
            com.google.protobuf.CodedInputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws java.io.IOException {
          if (extensionRegistry == null) {
            throw new java.lang.NullPointerException();
          }
          try {
            boolean done = false;
            while (!done) {
              int tag = input.readTag();
              switch (tag) {
                case 0:
                  done = true;
                  break;
                case 8: {
                  partitionSessionId_ = input.readInt64();
                  bitField0_ |= 0x00000001;
                  break;
                } // case 8
                case 16: {
                  directReadId_ = input.readInt64();
                  bitField0_ |= 0x00000002;
                  break;
                } // case 16
                case 26: {
                  input.readMessage(
                      getPartitionDataFieldBuilder().getBuilder(),
                      extensionRegistry);
                  bitField0_ |= 0x00000004;
                  break;
                } // case 26
                default: {
                  if (!super.parseUnknownField(input, extensionRegistry, tag)) {
                    done = true; // was an endgroup tag
                  }
                  break;
                } // default:
              } // switch (tag)
            } // while (!done)
          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
            throw e.unwrapIOException();
          } finally {
            onChanged();
          } // finally
          return this;
        }
        private int bitField0_;

        private long partitionSessionId_ ;
        /**
         * 
         * Partition session identifier.
         * 
         *
         * int64 partition_session_id = 1;
         * @return The partitionSessionId.
         */
        @java.lang.Override
        public long getPartitionSessionId() {
          return partitionSessionId_;
        }
        /**
         * 
         * Partition session identifier.
         * 
         *
         * int64 partition_session_id = 1;
         * @param value The partitionSessionId to set.
         * @return This builder for chaining.
         */
        public Builder setPartitionSessionId(long value) {

          partitionSessionId_ = value;
          bitField0_ |= 0x00000001;
          onChanged();
          return this;
        }
        /**
         * 
         * Partition session identifier.
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        public Builder clearPartitionSessionId() {
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          partitionSessionId_ = 0L;
          onChanged();
          return this;
        }

        private long directReadId_ ;
        /**
         * 
         * Read request identifier.
         * 
         *
         * int64 direct_read_id = 2;
         * @return The directReadId.
         */
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          return directReadId_;
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         * 
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         * @return This builder for chaining.
         */
        public Builder setDirectReadId(long value) {

          directReadId_ = value;
          bitField0_ |= 0x00000002;
          onChanged();
          return this;
        }
        /**
         * 
         * Read request identifier.
         * 
         *
         * int64 direct_read_id = 2;
         * @return This builder for chaining.
         */
        public Builder clearDirectReadId() {
          bitField0_ = (bitField0_ & ~0x00000002);
          directReadId_ = 0L;
          onChanged();
          return this;
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        private tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData partitionData_;
        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData.Builder, tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionDataOrBuilder> partitionDataBuilder_;
        /**
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         * 
         * Messages data
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         * 
         * Messages data
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         *
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        public Builder setPartitionData(
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        /**
         * 
         * Messages data
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         *
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        public Builder mergePartitionData(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData value) {
          if (partitionDataBuilder_ == null) {
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              partitionData_ != null &&
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          if (partitionData_ != null) {
            bitField0_ |= 0x00000004;
            onChanged();
          }
          return this;
        }
        /**
         * 
         * Messages data
         * 
         *
         * .Ydb.Topic.StreamReadMessage.ReadResponse.PartitionData partition_data = 3;
         */
        public Builder clearPartitionData() {
          bitField0_ = (bitField0_ & ~0x00000004);
          partitionData_ = null;
          if (partitionDataBuilder_ != null) {
            partitionDataBuilder_.dispose();
            partitionDataBuilder_ = null;
          }
          onChanged();
          return this;
        }
        /**
         * 
         * Messages data
         * 
         *
         * .Ydb.Topic.StreamReadMessage.ReadResponse.PartitionData partition_data = 3;
         */
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionData.Builder getPartitionDataBuilder() {
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          onChanged();
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        }
        /**
         * 
         * Messages data
         * 
         *
         * .Ydb.Topic.StreamReadMessage.ReadResponse.PartitionData partition_data = 3;
         */
        public tech.ydb.proto.topic.YdbTopic.StreamReadMessage.ReadResponse.PartitionDataOrBuilder getPartitionDataOrBuilder() {
          if (partitionDataBuilder_ != null) {
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        private com.google.protobuf.SingleFieldBuilderV3<
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        public DirectReadResponse parsePartialFrom(
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          Builder builder = newBuilder();
          try {
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      public static com.google.protobuf.Parser parser() {
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      @java.lang.Override
      public com.google.protobuf.Parser getParserForType() {
        return PARSER;
      }

      @java.lang.Override
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    public static tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage parseFrom(
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    public static tech.ydb.proto.topic.YdbTopic.StreamDirectReadMessage parseFrom(
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    @java.lang.Override
    public Builder newBuilderForType() { return newBuilder(); }
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    /**
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  }

  public interface TransactionIdentityOrBuilder extends
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    // @@protoc_insertion_point(class_scope:Ydb.Topic.TransactionIdentity)
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      // @@protoc_insertion_point(interface_extends:Ydb.Topic.UpdateOffsetsInTransactionRequest)
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    /**
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     * 
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     */
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     * 
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     * 
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     */
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     * 
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     * 
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     */
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     * 
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     * 
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     * 
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     */
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  /**
   * 
   * Add offsets to transaction request sent from client to server.
   * 
   *
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   */
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       * 
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    /**
     * Protobuf type {@code Ydb.Topic.UpdateOffsetsInTransactionRequest.TopicOffsets}
     */
    public static final class TopicOffsets extends
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        // @@protoc_insertion_point(message_implements:Ydb.Topic.UpdateOffsetsInTransactionRequest.TopicOffsets)
        TopicOffsetsOrBuilder {
    private static final long serialVersionUID = 0L;
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      private TopicOffsets(com.google.protobuf.GeneratedMessageV3.Builder builder) {
        super(builder);
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      private TopicOffsets() {
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        partitions_ = java.util.Collections.emptyList();
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      @SuppressWarnings({"unused"})
      protected java.lang.Object newInstance(
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      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
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          com.google.protobuf.MessageOrBuilder {

        /**
         * 
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         * 
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         * int64 partition_id = 1;
         * @return The partitionId.
         */
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        /**
         * 
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         * repeated .Ydb.Topic.OffsetsRange partition_offsets = 2;
         */
        java.util.List 
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        /**
         * 
         * List of offset ranges.
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         * repeated .Ydb.Topic.OffsetsRange partition_offsets = 2;
         */
        tech.ydb.proto.topic.YdbTopic.OffsetsRange getPartitionOffsets(int index);
        /**
         * 
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         */
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        /**
         * 
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         */
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        /**
         * 
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         */
        tech.ydb.proto.topic.YdbTopic.OffsetsRangeOrBuilder getPartitionOffsetsOrBuilder(
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      }
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       * Protobuf type {@code Ydb.Topic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets}
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      public static final class PartitionOffsets extends
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        public long getPartitionId() {
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        public static final int PARTITION_OFFSETS_FIELD_NUMBER = 2;
        @SuppressWarnings("serial")
        private java.util.List partitionOffsets_;
        /**
         * 
         * List of offset ranges.
         * 
         *
         * repeated .Ydb.Topic.OffsetsRange partition_offsets = 2;
         */
        @java.lang.Override
        public java.util.List getPartitionOffsetsList() {
          return partitionOffsets_;
        }
        /**
         * 
         * List of offset ranges.
         * 
         *
         * repeated .Ydb.Topic.OffsetsRange partition_offsets = 2;
         */
        @java.lang.Override
        public java.util.List 
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          return partitionOffsets_;
        }
        /**
         * 
         * List of offset ranges.
         * 
         *
         * repeated .Ydb.Topic.OffsetsRange partition_offsets = 2;
         */
        @java.lang.Override
        public int getPartitionOffsetsCount() {
          return partitionOffsets_.size();
        }
        /**
         * 
         * List of offset ranges.
         * 
         *
         * repeated .Ydb.Topic.OffsetsRange partition_offsets = 2;
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.OffsetsRange getPartitionOffsets(int index) {
          return partitionOffsets_.get(index);
        }
        /**
         * 
         * List of offset ranges.
         * 
         *
         * repeated .Ydb.Topic.OffsetsRange partition_offsets = 2;
         */
        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.OffsetsRangeOrBuilder getPartitionOffsetsOrBuilder(
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        private byte memoizedIsInitialized = -1;
        @java.lang.Override
        public final boolean isInitialized() {
          byte isInitialized = memoizedIsInitialized;
          if (isInitialized == 1) return true;
          if (isInitialized == 0) return false;

          memoizedIsInitialized = 1;
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        @java.lang.Override
        public void writeTo(com.google.protobuf.CodedOutputStream output)
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          getUnknownFields().writeTo(output);
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        @java.lang.Override
        public int getSerializedSize() {
          int size = memoizedSize;
          if (size != -1) return size;

          size = 0;
          if (partitionId_ != 0L) {
            size += com.google.protobuf.CodedOutputStream
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        @java.lang.Override
        public boolean equals(final java.lang.Object obj) {
          if (obj == this) {
           return true;
          }
          if (!(obj instanceof tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets)) {
            return super.equals(obj);
          }
          tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets other = (tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets) obj;

          if (getPartitionId()
              != other.getPartitionId()) return false;
          if (!getPartitionOffsetsList()
              .equals(other.getPartitionOffsetsList())) return false;
          if (!getUnknownFields().equals(other.getUnknownFields())) return false;
          return true;
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        @java.lang.Override
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          if (memoizedHashCode != 0) {
            return memoizedHashCode;
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          hash = (19 * hash) + getDescriptor().hashCode();
          hash = (37 * hash) + PARTITION_ID_FIELD_NUMBER;
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            throws com.google.protobuf.InvalidProtocolBufferException {
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            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
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            throws com.google.protobuf.InvalidProtocolBufferException {
          return PARSER.parseFrom(data);
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            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
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          return PARSER.parseFrom(data, extensionRegistry);
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          return PARSER.parseFrom(data);
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        public static tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets parseDelimitedFrom(
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          return com.google.protobuf.GeneratedMessageV3
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        public static tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets parseFrom(
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            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
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          return com.google.protobuf.GeneratedMessageV3
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        @java.lang.Override
        public Builder newBuilderForType() { return newBuilder(); }
        public static Builder newBuilder() {
          return DEFAULT_INSTANCE.toBuilder();
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        public static Builder newBuilder(tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets prototype) {
          return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
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        @java.lang.Override
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          return this == DEFAULT_INSTANCE
              ? new Builder() : new Builder().mergeFrom(this);
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        @java.lang.Override
        protected Builder newBuilderForType(
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          Builder builder = new Builder(parent);
          return builder;
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         * Protobuf type {@code Ydb.Topic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets}
         */
        public static final class Builder extends
            com.google.protobuf.GeneratedMessageV3.Builder implements
            // @@protoc_insertion_point(builder_implements:Ydb.Topic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets)
            tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsetsOrBuilder {
          public static final com.google.protobuf.Descriptors.Descriptor
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            return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_UpdateOffsetsInTransactionRequest_TopicOffsets_PartitionOffsets_descriptor;
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          @java.lang.Override
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          // Construct using tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets.newBuilder()
          private Builder() {

          }

          private Builder(
              com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
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          }
          @java.lang.Override
          public Builder clear() {
            super.clear();
            bitField0_ = 0;
            partitionId_ = 0L;
            if (partitionOffsetsBuilder_ == null) {
              partitionOffsets_ = java.util.Collections.emptyList();
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              partitionOffsets_ = null;
              partitionOffsetsBuilder_.clear();
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            bitField0_ = (bitField0_ & ~0x00000002);
            return this;
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          @java.lang.Override
          public com.google.protobuf.Descriptors.Descriptor
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            return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_UpdateOffsetsInTransactionRequest_TopicOffsets_PartitionOffsets_descriptor;
          }

          @java.lang.Override
          public tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets getDefaultInstanceForType() {
            return tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets.getDefaultInstance();
          }

          @java.lang.Override
          public tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets build() {
            tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets result = buildPartial();
            if (!result.isInitialized()) {
              throw newUninitializedMessageException(result);
            }
            return result;
          }

          @java.lang.Override
          public tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets buildPartial() {
            tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets result = new tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets(this);
            buildPartialRepeatedFields(result);
            if (bitField0_ != 0) { buildPartial0(result); }
            onBuilt();
            return result;
          }

          private void buildPartialRepeatedFields(tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets result) {
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              if (((bitField0_ & 0x00000002) != 0)) {
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            }
          }

          private void buildPartial0(tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets result) {
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            if (((from_bitField0_ & 0x00000001) != 0)) {
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          @java.lang.Override
          public Builder setField(
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          @java.lang.Override
          public Builder clearField(
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          @java.lang.Override
          public Builder clearOneof(
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            return super.clearOneof(oneof);
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          @java.lang.Override
          public Builder setRepeatedField(
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            return super.setRepeatedField(field, index, value);
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          @java.lang.Override
          public Builder addRepeatedField(
              com.google.protobuf.Descriptors.FieldDescriptor field,
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            return super.addRepeatedField(field, value);
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          @java.lang.Override
          public Builder mergeFrom(com.google.protobuf.Message other) {
            if (other instanceof tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets) {
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              super.mergeFrom(other);
              return this;
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          }

          public Builder mergeFrom(tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets other) {
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                onChanged();
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            } else {
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                  partitionOffsets_ = other.partitionOffsets_;
                  bitField0_ = (bitField0_ & ~0x00000002);
                  partitionOffsetsBuilder_ = 
                    com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders ?
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                  partitionOffsetsBuilder_.addAllMessages(other.partitionOffsets_);
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            this.mergeUnknownFields(other.getUnknownFields());
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            return this;
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          @java.lang.Override
          public Builder mergeFrom(
              com.google.protobuf.CodedInputStream input,
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            if (extensionRegistry == null) {
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            try {
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                switch (tag) {
                  case 0:
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                    break;
                  case 8: {
                    partitionId_ = input.readInt64();
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                  case 18: {
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                        input.readMessage(
                            tech.ydb.proto.topic.YdbTopic.OffsetsRange.parser(),
                            extensionRegistry);
                    if (partitionOffsetsBuilder_ == null) {
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                      partitionOffsetsBuilder_.addMessage(m);
                    }
                    break;
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                  default: {
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              throw e.unwrapIOException();
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              onChanged();
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          private long partitionId_ ;
          /**
           * 
           * Partition identifier.
           * 
           *
           * int64 partition_id = 1;
           * @return The partitionId.
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          public long getPartitionId() {
            return partitionId_;
          }
          /**
           * 
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           *
           * int64 partition_id = 1;
           * @param value The partitionId to set.
           * @return This builder for chaining.
           */
          public Builder setPartitionId(long value) {

            partitionId_ = value;
            bitField0_ |= 0x00000001;
            onChanged();
            return this;
          }
          /**
           * 
           * Partition identifier.
           * 
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           * int64 partition_id = 1;
           * @return This builder for chaining.
           */
          public Builder clearPartitionId() {
            bitField0_ = (bitField0_ & ~0x00000001);
            partitionId_ = 0L;
            onChanged();
            return this;
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          private java.util.List partitionOffsets_ =
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          private void ensurePartitionOffsetsIsMutable() {
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          private com.google.protobuf.RepeatedFieldBuilderV3<
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          /**
           * 
           * List of offset ranges.
           * 
           *
           * repeated .Ydb.Topic.OffsetsRange partition_offsets = 2;
           */
          public java.util.List getPartitionOffsetsList() {
            if (partitionOffsetsBuilder_ == null) {
              return java.util.Collections.unmodifiableList(partitionOffsets_);
            } else {
              return partitionOffsetsBuilder_.getMessageList();
            }
          }
          /**
           * 
           * List of offset ranges.
           * 
           *
           * repeated .Ydb.Topic.OffsetsRange partition_offsets = 2;
           */
          public int getPartitionOffsetsCount() {
            if (partitionOffsetsBuilder_ == null) {
              return partitionOffsets_.size();
            } else {
              return partitionOffsetsBuilder_.getCount();
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          }
          /**
           * 
           * List of offset ranges.
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           *
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           */
          public tech.ydb.proto.topic.YdbTopic.OffsetsRange getPartitionOffsets(int index) {
            if (partitionOffsetsBuilder_ == null) {
              return partitionOffsets_.get(index);
            } else {
              return partitionOffsetsBuilder_.getMessage(index);
            }
          }
          /**
           * 
           * List of offset ranges.
           * 
           *
           * repeated .Ydb.Topic.OffsetsRange partition_offsets = 2;
           */
          public Builder setPartitionOffsets(
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            if (partitionOffsetsBuilder_ == null) {
              if (value == null) {
                throw new NullPointerException();
              }
              ensurePartitionOffsetsIsMutable();
              partitionOffsets_.set(index, value);
              onChanged();
            } else {
              partitionOffsetsBuilder_.setMessage(index, value);
            }
            return this;
          }
          /**
           * 
           * List of offset ranges.
           * 
           *
           * repeated .Ydb.Topic.OffsetsRange partition_offsets = 2;
           */
          public Builder setPartitionOffsets(
              int index, tech.ydb.proto.topic.YdbTopic.OffsetsRange.Builder builderForValue) {
            if (partitionOffsetsBuilder_ == null) {
              ensurePartitionOffsetsIsMutable();
              partitionOffsets_.set(index, builderForValue.build());
              onChanged();
            } else {
              partitionOffsetsBuilder_.setMessage(index, builderForValue.build());
            }
            return this;
          }
          /**
           * 
           * List of offset ranges.
           * 
           *
           * repeated .Ydb.Topic.OffsetsRange partition_offsets = 2;
           */
          public Builder addPartitionOffsets(tech.ydb.proto.topic.YdbTopic.OffsetsRange value) {
            if (partitionOffsetsBuilder_ == null) {
              if (value == null) {
                throw new NullPointerException();
              }
              ensurePartitionOffsetsIsMutable();
              partitionOffsets_.add(value);
              onChanged();
            } else {
              partitionOffsetsBuilder_.addMessage(value);
            }
            return this;
          }
          /**
           * 
           * List of offset ranges.
           * 
           *
           * repeated .Ydb.Topic.OffsetsRange partition_offsets = 2;
           */
          public Builder addPartitionOffsets(
              int index, tech.ydb.proto.topic.YdbTopic.OffsetsRange value) {
            if (partitionOffsetsBuilder_ == null) {
              if (value == null) {
                throw new NullPointerException();
              }
              ensurePartitionOffsetsIsMutable();
              partitionOffsets_.add(index, value);
              onChanged();
            } else {
              partitionOffsetsBuilder_.addMessage(index, value);
            }
            return this;
          }
          /**
           * 
           * List of offset ranges.
           * 
           *
           * repeated .Ydb.Topic.OffsetsRange partition_offsets = 2;
           */
          public Builder addPartitionOffsets(
              tech.ydb.proto.topic.YdbTopic.OffsetsRange.Builder builderForValue) {
            if (partitionOffsetsBuilder_ == null) {
              ensurePartitionOffsetsIsMutable();
              partitionOffsets_.add(builderForValue.build());
              onChanged();
            } else {
              partitionOffsetsBuilder_.addMessage(builderForValue.build());
            }
            return this;
          }
          /**
           * 
           * List of offset ranges.
           * 
           *
           * repeated .Ydb.Topic.OffsetsRange partition_offsets = 2;
           */
          public Builder addPartitionOffsets(
              int index, tech.ydb.proto.topic.YdbTopic.OffsetsRange.Builder builderForValue) {
            if (partitionOffsetsBuilder_ == null) {
              ensurePartitionOffsetsIsMutable();
              partitionOffsets_.add(index, builderForValue.build());
              onChanged();
            } else {
              partitionOffsetsBuilder_.addMessage(index, builderForValue.build());
            }
            return this;
          }
          /**
           * 
           * List of offset ranges.
           * 
           *
           * repeated .Ydb.Topic.OffsetsRange partition_offsets = 2;
           */
          public Builder addAllPartitionOffsets(
              java.lang.Iterable values) {
            if (partitionOffsetsBuilder_ == null) {
              ensurePartitionOffsetsIsMutable();
              com.google.protobuf.AbstractMessageLite.Builder.addAll(
                  values, partitionOffsets_);
              onChanged();
            } else {
              partitionOffsetsBuilder_.addAllMessages(values);
            }
            return this;
          }
          /**
           * 
           * List of offset ranges.
           * 
           *
           * repeated .Ydb.Topic.OffsetsRange partition_offsets = 2;
           */
          public Builder clearPartitionOffsets() {
            if (partitionOffsetsBuilder_ == null) {
              partitionOffsets_ = java.util.Collections.emptyList();
              bitField0_ = (bitField0_ & ~0x00000002);
              onChanged();
            } else {
              partitionOffsetsBuilder_.clear();
            }
            return this;
          }
          /**
           * 
           * List of offset ranges.
           * 
           *
           * repeated .Ydb.Topic.OffsetsRange partition_offsets = 2;
           */
          public Builder removePartitionOffsets(int index) {
            if (partitionOffsetsBuilder_ == null) {
              ensurePartitionOffsetsIsMutable();
              partitionOffsets_.remove(index);
              onChanged();
            } else {
              partitionOffsetsBuilder_.remove(index);
            }
            return this;
          }
          /**
           * 
           * List of offset ranges.
           * 
           *
           * repeated .Ydb.Topic.OffsetsRange partition_offsets = 2;
           */
          public tech.ydb.proto.topic.YdbTopic.OffsetsRange.Builder getPartitionOffsetsBuilder(
              int index) {
            return getPartitionOffsetsFieldBuilder().getBuilder(index);
          }
          /**
           * 
           * List of offset ranges.
           * 
           *
           * repeated .Ydb.Topic.OffsetsRange partition_offsets = 2;
           */
          public tech.ydb.proto.topic.YdbTopic.OffsetsRangeOrBuilder getPartitionOffsetsOrBuilder(
              int index) {
            if (partitionOffsetsBuilder_ == null) {
              return partitionOffsets_.get(index);  } else {
              return partitionOffsetsBuilder_.getMessageOrBuilder(index);
            }
          }
          /**
           * 
           * List of offset ranges.
           * 
           *
           * repeated .Ydb.Topic.OffsetsRange partition_offsets = 2;
           */
          public java.util.List 
               getPartitionOffsetsOrBuilderList() {
            if (partitionOffsetsBuilder_ != null) {
              return partitionOffsetsBuilder_.getMessageOrBuilderList();
            } else {
              return java.util.Collections.unmodifiableList(partitionOffsets_);
            }
          }
          /**
           * 
           * List of offset ranges.
           * 
           *
           * repeated .Ydb.Topic.OffsetsRange partition_offsets = 2;
           */
          public tech.ydb.proto.topic.YdbTopic.OffsetsRange.Builder addPartitionOffsetsBuilder() {
            return getPartitionOffsetsFieldBuilder().addBuilder(
                tech.ydb.proto.topic.YdbTopic.OffsetsRange.getDefaultInstance());
          }
          /**
           * 
           * List of offset ranges.
           * 
           *
           * repeated .Ydb.Topic.OffsetsRange partition_offsets = 2;
           */
          public tech.ydb.proto.topic.YdbTopic.OffsetsRange.Builder addPartitionOffsetsBuilder(
              int index) {
            return getPartitionOffsetsFieldBuilder().addBuilder(
                index, tech.ydb.proto.topic.YdbTopic.OffsetsRange.getDefaultInstance());
          }
          /**
           * 
           * List of offset ranges.
           * 
           *
           * repeated .Ydb.Topic.OffsetsRange partition_offsets = 2;
           */
          public java.util.List 
               getPartitionOffsetsBuilderList() {
            return getPartitionOffsetsFieldBuilder().getBuilderList();
          }
          private com.google.protobuf.RepeatedFieldBuilderV3<
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              getPartitionOffsetsFieldBuilder() {
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                      ((bitField0_ & 0x00000002) != 0),
                      getParentForChildren(),
                      isClean());
              partitionOffsets_ = null;
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            return partitionOffsetsBuilder_;
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          @java.lang.Override
          public final Builder mergeUnknownFields(
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          // @@protoc_insertion_point(builder_scope:Ydb.Topic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets)
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        // @@protoc_insertion_point(class_scope:Ydb.Topic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets)
        private static final tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets DEFAULT_INSTANCE;
        static {
          DEFAULT_INSTANCE = new tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets();
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        public static tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets getDefaultInstance() {
          return DEFAULT_INSTANCE;
        }

        private static final com.google.protobuf.Parser
            PARSER = new com.google.protobuf.AbstractParser() {
          @java.lang.Override
          public PartitionOffsets parsePartialFrom(
              com.google.protobuf.CodedInputStream input,
              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
              throws com.google.protobuf.InvalidProtocolBufferException {
            Builder builder = newBuilder();
            try {
              builder.mergeFrom(input, extensionRegistry);
            } catch (com.google.protobuf.InvalidProtocolBufferException e) {
              throw e.setUnfinishedMessage(builder.buildPartial());
            } catch (com.google.protobuf.UninitializedMessageException e) {
              throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
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              throw new com.google.protobuf.InvalidProtocolBufferException(e)
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            return builder.buildPartial();
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        };

        public static com.google.protobuf.Parser parser() {
          return PARSER;
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        @java.lang.Override
        public com.google.protobuf.Parser getParserForType() {
          return PARSER;
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        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets getDefaultInstanceForType() {
          return DEFAULT_INSTANCE;
        }

      }

      public static final int PATH_FIELD_NUMBER = 1;
      @SuppressWarnings("serial")
      private volatile java.lang.Object path_ = "";
      /**
       * 
       * Topic path.
       * 
       *
       * string path = 1;
       * @return The path.
       */
      @java.lang.Override
      public java.lang.String getPath() {
        java.lang.Object ref = path_;
        if (ref instanceof java.lang.String) {
          return (java.lang.String) ref;
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          com.google.protobuf.ByteString bs = 
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          java.lang.String s = bs.toStringUtf8();
          path_ = s;
          return s;
        }
      }
      /**
       * 
       * Topic path.
       * 
       *
       * string path = 1;
       * @return The bytes for path.
       */
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          com.google.protobuf.ByteString b = 
              com.google.protobuf.ByteString.copyFromUtf8(
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          path_ = b;
          return b;
        } else {
          return (com.google.protobuf.ByteString) ref;
        }
      }

      public static final int PARTITIONS_FIELD_NUMBER = 2;
      @SuppressWarnings("serial")
      private java.util.List partitions_;
      /**
       * 
       * Ranges of offsets by partitions.
       * 
       *
       * repeated .Ydb.Topic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets partitions = 2;
       */
      @java.lang.Override
      public java.util.List getPartitionsList() {
        return partitions_;
      }
      /**
       * 
       * Ranges of offsets by partitions.
       * 
       *
       * repeated .Ydb.Topic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets partitions = 2;
       */
      @java.lang.Override
      public java.util.List 
          getPartitionsOrBuilderList() {
        return partitions_;
      }
      /**
       * 
       * Ranges of offsets by partitions.
       * 
       *
       * repeated .Ydb.Topic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets partitions = 2;
       */
      @java.lang.Override
      public int getPartitionsCount() {
        return partitions_.size();
      }
      /**
       * 
       * Ranges of offsets by partitions.
       * 
       *
       * repeated .Ydb.Topic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets partitions = 2;
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets getPartitions(int index) {
        return partitions_.get(index);
      }
      /**
       * 
       * Ranges of offsets by partitions.
       * 
       *
       * repeated .Ydb.Topic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets partitions = 2;
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsetsOrBuilder getPartitionsOrBuilder(
          int index) {
        return partitions_.get(index);
      }

      private byte memoizedIsInitialized = -1;
      @java.lang.Override
      public final boolean isInitialized() {
        byte isInitialized = memoizedIsInitialized;
        if (isInitialized == 1) return true;
        if (isInitialized == 0) return false;

        memoizedIsInitialized = 1;
        return true;
      }

      @java.lang.Override
      public void writeTo(com.google.protobuf.CodedOutputStream output)
                          throws java.io.IOException {
        if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(path_)) {
          com.google.protobuf.GeneratedMessageV3.writeString(output, 1, path_);
        }
        for (int i = 0; i < partitions_.size(); i++) {
          output.writeMessage(2, partitions_.get(i));
        }
        getUnknownFields().writeTo(output);
      }

      @java.lang.Override
      public int getSerializedSize() {
        int size = memoizedSize;
        if (size != -1) return size;

        size = 0;
        if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(path_)) {
          size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, path_);
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        for (int i = 0; i < partitions_.size(); i++) {
          size += com.google.protobuf.CodedOutputStream
            .computeMessageSize(2, partitions_.get(i));
        }
        size += getUnknownFields().getSerializedSize();
        memoizedSize = size;
        return size;
      }

      @java.lang.Override
      public boolean equals(final java.lang.Object obj) {
        if (obj == this) {
         return true;
        }
        if (!(obj instanceof tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets)) {
          return super.equals(obj);
        }
        tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets other = (tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets) obj;

        if (!getPath()
            .equals(other.getPath())) return false;
        if (!getPartitionsList()
            .equals(other.getPartitionsList())) return false;
        if (!getUnknownFields().equals(other.getUnknownFields())) return false;
        return true;
      }

      @java.lang.Override
      public int hashCode() {
        if (memoizedHashCode != 0) {
          return memoizedHashCode;
        }
        int hash = 41;
        hash = (19 * hash) + getDescriptor().hashCode();
        hash = (37 * hash) + PATH_FIELD_NUMBER;
        hash = (53 * hash) + getPath().hashCode();
        if (getPartitionsCount() > 0) {
          hash = (37 * hash) + PARTITIONS_FIELD_NUMBER;
          hash = (53 * hash) + getPartitionsList().hashCode();
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        hash = (29 * hash) + getUnknownFields().hashCode();
        memoizedHashCode = hash;
        return hash;
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      public static tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets parseFrom(
          java.nio.ByteBuffer data)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data);
      }
      public static tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets parseFrom(
          java.nio.ByteBuffer data,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data, extensionRegistry);
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      public static tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets parseFrom(
          com.google.protobuf.ByteString data)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data);
      }
      public static tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets parseFrom(
          com.google.protobuf.ByteString data,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data, extensionRegistry);
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      public static tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets parseFrom(
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      public static tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets parseFrom(java.io.InputStream input)
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      public static tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets parseFrom(
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        return com.google.protobuf.GeneratedMessageV3
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      public static tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets parseFrom(
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          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseWithIOException(PARSER, input);
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      public static tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets parseFrom(
          com.google.protobuf.CodedInputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseWithIOException(PARSER, input, extensionRegistry);
      }

      @java.lang.Override
      public Builder newBuilderForType() { return newBuilder(); }
      public static Builder newBuilder() {
        return DEFAULT_INSTANCE.toBuilder();
      }
      public static Builder newBuilder(tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets prototype) {
        return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
      }
      @java.lang.Override
      public Builder toBuilder() {
        return this == DEFAULT_INSTANCE
            ? new Builder() : new Builder().mergeFrom(this);
      }

      @java.lang.Override
      protected Builder newBuilderForType(
          com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
        Builder builder = new Builder(parent);
        return builder;
      }
      /**
       * Protobuf type {@code Ydb.Topic.UpdateOffsetsInTransactionRequest.TopicOffsets}
       */
      public static final class Builder extends
          com.google.protobuf.GeneratedMessageV3.Builder implements
          // @@protoc_insertion_point(builder_implements:Ydb.Topic.UpdateOffsetsInTransactionRequest.TopicOffsets)
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        private Builder() {

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        private Builder(
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        public Builder clear() {
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          tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets result = buildPartial();
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                  done = true;
                  break;
                case 10: {
                  path_ = input.readStringRequireUtf8();
                  bitField0_ |= 0x00000001;
                  break;
                } // case 10
                case 18: {
                  tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets m =
                      input.readMessage(
                          tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets.parser(),
                          extensionRegistry);
                  if (partitionsBuilder_ == null) {
                    ensurePartitionsIsMutable();
                    partitions_.add(m);
                  } else {
                    partitionsBuilder_.addMessage(m);
                  }
                  break;
                } // case 18
                default: {
                  if (!super.parseUnknownField(input, extensionRegistry, tag)) {
                    done = true; // was an endgroup tag
                  }
                  break;
                } // default:
              } // switch (tag)
            } // while (!done)
          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
            throw e.unwrapIOException();
          } finally {
            onChanged();
          } // finally
          return this;
        }
        private int bitField0_;

        private java.lang.Object path_ = "";
        /**
         * 
         * Topic path.
         * 
         *
         * string path = 1;
         * @return The path.
         */
        public java.lang.String getPath() {
          java.lang.Object ref = path_;
          if (!(ref instanceof java.lang.String)) {
            com.google.protobuf.ByteString bs =
                (com.google.protobuf.ByteString) ref;
            java.lang.String s = bs.toStringUtf8();
            path_ = s;
            return s;
          } else {
            return (java.lang.String) ref;
          }
        }
        /**
         * 
         * Topic path.
         * 
         *
         * string path = 1;
         * @return The bytes for path.
         */
        public com.google.protobuf.ByteString
            getPathBytes() {
          java.lang.Object ref = path_;
          if (ref instanceof String) {
            com.google.protobuf.ByteString b = 
                com.google.protobuf.ByteString.copyFromUtf8(
                    (java.lang.String) ref);
            path_ = b;
            return b;
          } else {
            return (com.google.protobuf.ByteString) ref;
          }
        }
        /**
         * 
         * Topic path.
         * 
         *
         * string path = 1;
         * @param value The path to set.
         * @return This builder for chaining.
         */
        public Builder setPath(
            java.lang.String value) {
          if (value == null) { throw new NullPointerException(); }
          path_ = value;
          bitField0_ |= 0x00000001;
          onChanged();
          return this;
        }
        /**
         * 
         * Topic path.
         * 
         *
         * string path = 1;
         * @return This builder for chaining.
         */
        public Builder clearPath() {
          path_ = getDefaultInstance().getPath();
          bitField0_ = (bitField0_ & ~0x00000001);
          onChanged();
          return this;
        }
        /**
         * 
         * Topic path.
         * 
         *
         * string path = 1;
         * @param value The bytes for path to set.
         * @return This builder for chaining.
         */
        public Builder setPathBytes(
            com.google.protobuf.ByteString value) {
          if (value == null) { throw new NullPointerException(); }
          checkByteStringIsUtf8(value);
          path_ = value;
          bitField0_ |= 0x00000001;
          onChanged();
          return this;
        }

        private java.util.List partitions_ =
          java.util.Collections.emptyList();
        private void ensurePartitionsIsMutable() {
          if (!((bitField0_ & 0x00000002) != 0)) {
            partitions_ = new java.util.ArrayList(partitions_);
            bitField0_ |= 0x00000002;
           }
        }

        private com.google.protobuf.RepeatedFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets, tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets.Builder, tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsetsOrBuilder> partitionsBuilder_;

        /**
         * 
         * Ranges of offsets by partitions.
         * 
         *
         * repeated .Ydb.Topic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets partitions = 2;
         */
        public java.util.List getPartitionsList() {
          if (partitionsBuilder_ == null) {
            return java.util.Collections.unmodifiableList(partitions_);
          } else {
            return partitionsBuilder_.getMessageList();
          }
        }
        /**
         * 
         * Ranges of offsets by partitions.
         * 
         *
         * repeated .Ydb.Topic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets partitions = 2;
         */
        public int getPartitionsCount() {
          if (partitionsBuilder_ == null) {
            return partitions_.size();
          } else {
            return partitionsBuilder_.getCount();
          }
        }
        /**
         * 
         * Ranges of offsets by partitions.
         * 
         *
         * repeated .Ydb.Topic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets partitions = 2;
         */
        public tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets getPartitions(int index) {
          if (partitionsBuilder_ == null) {
            return partitions_.get(index);
          } else {
            return partitionsBuilder_.getMessage(index);
          }
        }
        /**
         * 
         * Ranges of offsets by partitions.
         * 
         *
         * repeated .Ydb.Topic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets partitions = 2;
         */
        public Builder setPartitions(
            int index, tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets value) {
          if (partitionsBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            ensurePartitionsIsMutable();
            partitions_.set(index, value);
            onChanged();
          } else {
            partitionsBuilder_.setMessage(index, value);
          }
          return this;
        }
        /**
         * 
         * Ranges of offsets by partitions.
         * 
         *
         * repeated .Ydb.Topic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets partitions = 2;
         */
        public Builder setPartitions(
            int index, tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets.Builder builderForValue) {
          if (partitionsBuilder_ == null) {
            ensurePartitionsIsMutable();
            partitions_.set(index, builderForValue.build());
            onChanged();
          } else {
            partitionsBuilder_.setMessage(index, builderForValue.build());
          }
          return this;
        }
        /**
         * 
         * Ranges of offsets by partitions.
         * 
         *
         * repeated .Ydb.Topic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets partitions = 2;
         */
        public Builder addPartitions(tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets value) {
          if (partitionsBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            ensurePartitionsIsMutable();
            partitions_.add(value);
            onChanged();
          } else {
            partitionsBuilder_.addMessage(value);
          }
          return this;
        }
        /**
         * 
         * Ranges of offsets by partitions.
         * 
         *
         * repeated .Ydb.Topic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets partitions = 2;
         */
        public Builder addPartitions(
            int index, tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets value) {
          if (partitionsBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            ensurePartitionsIsMutable();
            partitions_.add(index, value);
            onChanged();
          } else {
            partitionsBuilder_.addMessage(index, value);
          }
          return this;
        }
        /**
         * 
         * Ranges of offsets by partitions.
         * 
         *
         * repeated .Ydb.Topic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets partitions = 2;
         */
        public Builder addPartitions(
            tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets.Builder builderForValue) {
          if (partitionsBuilder_ == null) {
            ensurePartitionsIsMutable();
            partitions_.add(builderForValue.build());
            onChanged();
          } else {
            partitionsBuilder_.addMessage(builderForValue.build());
          }
          return this;
        }
        /**
         * 
         * Ranges of offsets by partitions.
         * 
         *
         * repeated .Ydb.Topic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets partitions = 2;
         */
        public Builder addPartitions(
            int index, tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets.Builder builderForValue) {
          if (partitionsBuilder_ == null) {
            ensurePartitionsIsMutable();
            partitions_.add(index, builderForValue.build());
            onChanged();
          } else {
            partitionsBuilder_.addMessage(index, builderForValue.build());
          }
          return this;
        }
        /**
         * 
         * Ranges of offsets by partitions.
         * 
         *
         * repeated .Ydb.Topic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets partitions = 2;
         */
        public Builder addAllPartitions(
            java.lang.Iterable values) {
          if (partitionsBuilder_ == null) {
            ensurePartitionsIsMutable();
            com.google.protobuf.AbstractMessageLite.Builder.addAll(
                values, partitions_);
            onChanged();
          } else {
            partitionsBuilder_.addAllMessages(values);
          }
          return this;
        }
        /**
         * 
         * Ranges of offsets by partitions.
         * 
         *
         * repeated .Ydb.Topic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets partitions = 2;
         */
        public Builder clearPartitions() {
          if (partitionsBuilder_ == null) {
            partitions_ = java.util.Collections.emptyList();
            bitField0_ = (bitField0_ & ~0x00000002);
            onChanged();
          } else {
            partitionsBuilder_.clear();
          }
          return this;
        }
        /**
         * 
         * Ranges of offsets by partitions.
         * 
         *
         * repeated .Ydb.Topic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets partitions = 2;
         */
        public Builder removePartitions(int index) {
          if (partitionsBuilder_ == null) {
            ensurePartitionsIsMutable();
            partitions_.remove(index);
            onChanged();
          } else {
            partitionsBuilder_.remove(index);
          }
          return this;
        }
        /**
         * 
         * Ranges of offsets by partitions.
         * 
         *
         * repeated .Ydb.Topic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets partitions = 2;
         */
        public tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets.Builder getPartitionsBuilder(
            int index) {
          return getPartitionsFieldBuilder().getBuilder(index);
        }
        /**
         * 
         * Ranges of offsets by partitions.
         * 
         *
         * repeated .Ydb.Topic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets partitions = 2;
         */
        public tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsetsOrBuilder getPartitionsOrBuilder(
            int index) {
          if (partitionsBuilder_ == null) {
            return partitions_.get(index);  } else {
            return partitionsBuilder_.getMessageOrBuilder(index);
          }
        }
        /**
         * 
         * Ranges of offsets by partitions.
         * 
         *
         * repeated .Ydb.Topic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets partitions = 2;
         */
        public java.util.List 
             getPartitionsOrBuilderList() {
          if (partitionsBuilder_ != null) {
            return partitionsBuilder_.getMessageOrBuilderList();
          } else {
            return java.util.Collections.unmodifiableList(partitions_);
          }
        }
        /**
         * 
         * Ranges of offsets by partitions.
         * 
         *
         * repeated .Ydb.Topic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets partitions = 2;
         */
        public tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets.Builder addPartitionsBuilder() {
          return getPartitionsFieldBuilder().addBuilder(
              tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets.getDefaultInstance());
        }
        /**
         * 
         * Ranges of offsets by partitions.
         * 
         *
         * repeated .Ydb.Topic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets partitions = 2;
         */
        public tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets.Builder addPartitionsBuilder(
            int index) {
          return getPartitionsFieldBuilder().addBuilder(
              index, tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets.getDefaultInstance());
        }
        /**
         * 
         * Ranges of offsets by partitions.
         * 
         *
         * repeated .Ydb.Topic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets partitions = 2;
         */
        public java.util.List 
             getPartitionsBuilderList() {
          return getPartitionsFieldBuilder().getBuilderList();
        }
        private com.google.protobuf.RepeatedFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets, tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets.Builder, tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsetsOrBuilder> 
            getPartitionsFieldBuilder() {
          if (partitionsBuilder_ == null) {
            partitionsBuilder_ = new com.google.protobuf.RepeatedFieldBuilderV3<
                tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets, tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsets.Builder, tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets.PartitionOffsetsOrBuilder>(
                    partitions_,
                    ((bitField0_ & 0x00000002) != 0),
                    getParentForChildren(),
                    isClean());
            partitions_ = null;
          }
          return partitionsBuilder_;
        }
        @java.lang.Override
        public final Builder setUnknownFields(
            final com.google.protobuf.UnknownFieldSet unknownFields) {
          return super.setUnknownFields(unknownFields);
        }

        @java.lang.Override
        public final Builder mergeUnknownFields(
            final com.google.protobuf.UnknownFieldSet unknownFields) {
          return super.mergeUnknownFields(unknownFields);
        }


        // @@protoc_insertion_point(builder_scope:Ydb.Topic.UpdateOffsetsInTransactionRequest.TopicOffsets)
      }

      // @@protoc_insertion_point(class_scope:Ydb.Topic.UpdateOffsetsInTransactionRequest.TopicOffsets)
      private static final tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets DEFAULT_INSTANCE;
      static {
        DEFAULT_INSTANCE = new tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets();
      }

      public static tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets getDefaultInstance() {
        return DEFAULT_INSTANCE;
      }

      private static final com.google.protobuf.Parser
          PARSER = new com.google.protobuf.AbstractParser() {
        @java.lang.Override
        public TopicOffsets parsePartialFrom(
            com.google.protobuf.CodedInputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws com.google.protobuf.InvalidProtocolBufferException {
          Builder builder = newBuilder();
          try {
            builder.mergeFrom(input, extensionRegistry);
          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
            throw e.setUnfinishedMessage(builder.buildPartial());
          } catch (com.google.protobuf.UninitializedMessageException e) {
            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
          } catch (java.io.IOException e) {
            throw new com.google.protobuf.InvalidProtocolBufferException(e)
                .setUnfinishedMessage(builder.buildPartial());
          }
          return builder.buildPartial();
        }
      };

      public static com.google.protobuf.Parser parser() {
        return PARSER;
      }

      @java.lang.Override
      public com.google.protobuf.Parser getParserForType() {
        return PARSER;
      }

      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets getDefaultInstanceForType() {
        return DEFAULT_INSTANCE;
      }

    }

    private int bitField0_;
    public static final int OPERATION_PARAMS_FIELD_NUMBER = 1;
    private tech.ydb.proto.OperationProtos.OperationParams operationParams_;
    /**
     * .Ydb.Operations.OperationParams operation_params = 1;
     * @return Whether the operationParams field is set.
     */
    @java.lang.Override
    public boolean hasOperationParams() {
      return ((bitField0_ & 0x00000001) != 0);
    }
    /**
     * .Ydb.Operations.OperationParams operation_params = 1;
     * @return The operationParams.
     */
    @java.lang.Override
    public tech.ydb.proto.OperationProtos.OperationParams getOperationParams() {
      return operationParams_ == null ? tech.ydb.proto.OperationProtos.OperationParams.getDefaultInstance() : operationParams_;
    }
    /**
     * .Ydb.Operations.OperationParams operation_params = 1;
     */
    @java.lang.Override
    public tech.ydb.proto.OperationProtos.OperationParamsOrBuilder getOperationParamsOrBuilder() {
      return operationParams_ == null ? tech.ydb.proto.OperationProtos.OperationParams.getDefaultInstance() : operationParams_;
    }

    public static final int TX_FIELD_NUMBER = 2;
    private tech.ydb.proto.topic.YdbTopic.TransactionIdentity tx_;
    /**
     * .Ydb.Topic.TransactionIdentity tx = 2;
     * @return Whether the tx field is set.
     */
    @java.lang.Override
    public boolean hasTx() {
      return ((bitField0_ & 0x00000002) != 0);
    }
    /**
     * .Ydb.Topic.TransactionIdentity tx = 2;
     * @return The tx.
     */
    @java.lang.Override
    public tech.ydb.proto.topic.YdbTopic.TransactionIdentity getTx() {
      return tx_ == null ? tech.ydb.proto.topic.YdbTopic.TransactionIdentity.getDefaultInstance() : tx_;
    }
    /**
     * .Ydb.Topic.TransactionIdentity tx = 2;
     */
    @java.lang.Override
    public tech.ydb.proto.topic.YdbTopic.TransactionIdentityOrBuilder getTxOrBuilder() {
      return tx_ == null ? tech.ydb.proto.topic.YdbTopic.TransactionIdentity.getDefaultInstance() : tx_;
    }

    public static final int TOPICS_FIELD_NUMBER = 3;
    @SuppressWarnings("serial")
    private java.util.List topics_;
    /**
     * 
     * Ranges of offsets by topics.
     * 
     *
     * repeated .Ydb.Topic.UpdateOffsetsInTransactionRequest.TopicOffsets topics = 3;
     */
    @java.lang.Override
    public java.util.List getTopicsList() {
      return topics_;
    }
    /**
     * 
     * Ranges of offsets by topics.
     * 
     *
     * repeated .Ydb.Topic.UpdateOffsetsInTransactionRequest.TopicOffsets topics = 3;
     */
    @java.lang.Override
    public java.util.List 
        getTopicsOrBuilderList() {
      return topics_;
    }
    /**
     * 
     * Ranges of offsets by topics.
     * 
     *
     * repeated .Ydb.Topic.UpdateOffsetsInTransactionRequest.TopicOffsets topics = 3;
     */
    @java.lang.Override
    public int getTopicsCount() {
      return topics_.size();
    }
    /**
     * 
     * Ranges of offsets by topics.
     * 
     *
     * repeated .Ydb.Topic.UpdateOffsetsInTransactionRequest.TopicOffsets topics = 3;
     */
    @java.lang.Override
    public tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets getTopics(int index) {
      return topics_.get(index);
    }
    /**
     * 
     * Ranges of offsets by topics.
     * 
     *
     * repeated .Ydb.Topic.UpdateOffsetsInTransactionRequest.TopicOffsets topics = 3;
     */
    @java.lang.Override
    public tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsetsOrBuilder getTopicsOrBuilder(
        int index) {
      return topics_.get(index);
    }

    public static final int CONSUMER_FIELD_NUMBER = 4;
    @SuppressWarnings("serial")
    private volatile java.lang.Object consumer_ = "";
    /**
     * string consumer = 4;
     * @return The consumer.
     */
    @java.lang.Override
    public java.lang.String getConsumer() {
      java.lang.Object ref = consumer_;
      if (ref instanceof java.lang.String) {
        return (java.lang.String) ref;
      } else {
        com.google.protobuf.ByteString bs = 
            (com.google.protobuf.ByteString) ref;
        java.lang.String s = bs.toStringUtf8();
        consumer_ = s;
        return s;
      }
    }
    /**
     * string consumer = 4;
     * @return The bytes for consumer.
     */
    @java.lang.Override
    public com.google.protobuf.ByteString
        getConsumerBytes() {
      java.lang.Object ref = consumer_;
      if (ref instanceof java.lang.String) {
        com.google.protobuf.ByteString b = 
            com.google.protobuf.ByteString.copyFromUtf8(
                (java.lang.String) ref);
        consumer_ = b;
        return b;
      } else {
        return (com.google.protobuf.ByteString) ref;
      }
    }

    private byte memoizedIsInitialized = -1;
    @java.lang.Override
    public final boolean isInitialized() {
      byte isInitialized = memoizedIsInitialized;
      if (isInitialized == 1) return true;
      if (isInitialized == 0) return false;

      memoizedIsInitialized = 1;
      return true;
    }

    @java.lang.Override
    public void writeTo(com.google.protobuf.CodedOutputStream output)
                        throws java.io.IOException {
      if (((bitField0_ & 0x00000001) != 0)) {
        output.writeMessage(1, getOperationParams());
      }
      if (((bitField0_ & 0x00000002) != 0)) {
        output.writeMessage(2, getTx());
      }
      for (int i = 0; i < topics_.size(); i++) {
        output.writeMessage(3, topics_.get(i));
      }
      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(consumer_)) {
        com.google.protobuf.GeneratedMessageV3.writeString(output, 4, consumer_);
      }
      getUnknownFields().writeTo(output);
    }

    @java.lang.Override
    public int getSerializedSize() {
      int size = memoizedSize;
      if (size != -1) return size;

      size = 0;
      if (((bitField0_ & 0x00000001) != 0)) {
        size += com.google.protobuf.CodedOutputStream
          .computeMessageSize(1, getOperationParams());
      }
      if (((bitField0_ & 0x00000002) != 0)) {
        size += com.google.protobuf.CodedOutputStream
          .computeMessageSize(2, getTx());
      }
      for (int i = 0; i < topics_.size(); i++) {
        size += com.google.protobuf.CodedOutputStream
          .computeMessageSize(3, topics_.get(i));
      }
      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(consumer_)) {
        size += com.google.protobuf.GeneratedMessageV3.computeStringSize(4, consumer_);
      }
      size += getUnknownFields().getSerializedSize();
      memoizedSize = size;
      return size;
    }

    @java.lang.Override
    public boolean equals(final java.lang.Object obj) {
      if (obj == this) {
       return true;
      }
      if (!(obj instanceof tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest)) {
        return super.equals(obj);
      }
      tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest other = (tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest) obj;

      if (hasOperationParams() != other.hasOperationParams()) return false;
      if (hasOperationParams()) {
        if (!getOperationParams()
            .equals(other.getOperationParams())) return false;
      }
      if (hasTx() != other.hasTx()) return false;
      if (hasTx()) {
        if (!getTx()
            .equals(other.getTx())) return false;
      }
      if (!getTopicsList()
          .equals(other.getTopicsList())) return false;
      if (!getConsumer()
          .equals(other.getConsumer())) return false;
      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
      return true;
    }

    @java.lang.Override
    public int hashCode() {
      if (memoizedHashCode != 0) {
        return memoizedHashCode;
      }
      int hash = 41;
      hash = (19 * hash) + getDescriptor().hashCode();
      if (hasOperationParams()) {
        hash = (37 * hash) + OPERATION_PARAMS_FIELD_NUMBER;
        hash = (53 * hash) + getOperationParams().hashCode();
      }
      if (hasTx()) {
        hash = (37 * hash) + TX_FIELD_NUMBER;
        hash = (53 * hash) + getTx().hashCode();
      }
      if (getTopicsCount() > 0) {
        hash = (37 * hash) + TOPICS_FIELD_NUMBER;
        hash = (53 * hash) + getTopicsList().hashCode();
      }
      hash = (37 * hash) + CONSUMER_FIELD_NUMBER;
      hash = (53 * hash) + getConsumer().hashCode();
      hash = (29 * hash) + getUnknownFields().hashCode();
      memoizedHashCode = hash;
      return hash;
    }

    public static tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest parseFrom(
        java.nio.ByteBuffer data)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data);
    }
    public static tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest parseFrom(
        java.nio.ByteBuffer data,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data, extensionRegistry);
    }
    public static tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest parseFrom(
        com.google.protobuf.ByteString data)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data);
    }
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    @java.lang.Override
    public Builder newBuilderForType() { return newBuilder(); }
    public static Builder newBuilder() {
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    public static Builder newBuilder(tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest prototype) {
      return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
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    @java.lang.Override
    public Builder toBuilder() {
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    @java.lang.Override
    protected Builder newBuilderForType(
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    /**
     * 
     * Add offsets to transaction request sent from client to server.
     * 
     *
     * Protobuf type {@code Ydb.Topic.UpdateOffsetsInTransactionRequest}
     */
    public static final class Builder extends
        com.google.protobuf.GeneratedMessageV3.Builder implements
        // @@protoc_insertion_point(builder_implements:Ydb.Topic.UpdateOffsetsInTransactionRequest)
        tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequestOrBuilder {
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      private Builder() {
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          getTopicsFieldBuilder();
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      @java.lang.Override
      public Builder clear() {
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        bitField0_ = 0;
        operationParams_ = null;
        if (operationParamsBuilder_ != null) {
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          topicsBuilder_.clear();
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        bitField0_ = (bitField0_ & ~0x00000004);
        consumer_ = "";
        return this;
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      @java.lang.Override
      public com.google.protobuf.Descriptors.Descriptor
          getDescriptorForType() {
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      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest getDefaultInstanceForType() {
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      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest build() {
        tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest result = buildPartial();
        if (!result.isInitialized()) {
          throw newUninitializedMessageException(result);
        }
        return result;
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      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest buildPartial() {
        tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest result = new tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest(this);
        buildPartialRepeatedFields(result);
        if (bitField0_ != 0) { buildPartial0(result); }
        onBuilt();
        return result;
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      private void buildPartialRepeatedFields(tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest result) {
        if (topicsBuilder_ == null) {
          if (((bitField0_ & 0x00000004) != 0)) {
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          result.topics_ = topics_;
        } else {
          result.topics_ = topicsBuilder_.build();
        }
      }

      private void buildPartial0(tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest result) {
        int from_bitField0_ = bitField0_;
        int to_bitField0_ = 0;
        if (((from_bitField0_ & 0x00000001) != 0)) {
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          to_bitField0_ |= 0x00000001;
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        if (((from_bitField0_ & 0x00000002) != 0)) {
          result.tx_ = txBuilder_ == null
              ? tx_
              : txBuilder_.build();
          to_bitField0_ |= 0x00000002;
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        if (((from_bitField0_ & 0x00000008) != 0)) {
          result.consumer_ = consumer_;
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        result.bitField0_ |= to_bitField0_;
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      @java.lang.Override
      public Builder setField(
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        return super.setField(field, value);
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      @java.lang.Override
      public Builder clearField(
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        return super.clearField(field);
      }
      @java.lang.Override
      public Builder clearOneof(
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        return super.clearOneof(oneof);
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      @java.lang.Override
      public Builder setRepeatedField(
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        return super.setRepeatedField(field, index, value);
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      @java.lang.Override
      public Builder addRepeatedField(
          com.google.protobuf.Descriptors.FieldDescriptor field,
          java.lang.Object value) {
        return super.addRepeatedField(field, value);
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      @java.lang.Override
      public Builder mergeFrom(com.google.protobuf.Message other) {
        if (other instanceof tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest) {
          return mergeFrom((tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest)other);
        } else {
          super.mergeFrom(other);
          return this;
        }
      }

      public Builder mergeFrom(tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest other) {
        if (other == tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.getDefaultInstance()) return this;
        if (other.hasOperationParams()) {
          mergeOperationParams(other.getOperationParams());
        }
        if (other.hasTx()) {
          mergeTx(other.getTx());
        }
        if (topicsBuilder_ == null) {
          if (!other.topics_.isEmpty()) {
            if (topics_.isEmpty()) {
              topics_ = other.topics_;
              bitField0_ = (bitField0_ & ~0x00000004);
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              ensureTopicsIsMutable();
              topics_.addAll(other.topics_);
            }
            onChanged();
          }
        } else {
          if (!other.topics_.isEmpty()) {
            if (topicsBuilder_.isEmpty()) {
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              topicsBuilder_ = null;
              topics_ = other.topics_;
              bitField0_ = (bitField0_ & ~0x00000004);
              topicsBuilder_ = 
                com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders ?
                   getTopicsFieldBuilder() : null;
            } else {
              topicsBuilder_.addAllMessages(other.topics_);
            }
          }
        }
        if (!other.getConsumer().isEmpty()) {
          consumer_ = other.consumer_;
          bitField0_ |= 0x00000008;
          onChanged();
        }
        this.mergeUnknownFields(other.getUnknownFields());
        onChanged();
        return this;
      }

      @java.lang.Override
      public final boolean isInitialized() {
        return true;
      }

      @java.lang.Override
      public Builder mergeFrom(
          com.google.protobuf.CodedInputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws java.io.IOException {
        if (extensionRegistry == null) {
          throw new java.lang.NullPointerException();
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        try {
          boolean done = false;
          while (!done) {
            int tag = input.readTag();
            switch (tag) {
              case 0:
                done = true;
                break;
              case 10: {
                input.readMessage(
                    getOperationParamsFieldBuilder().getBuilder(),
                    extensionRegistry);
                bitField0_ |= 0x00000001;
                break;
              } // case 10
              case 18: {
                input.readMessage(
                    getTxFieldBuilder().getBuilder(),
                    extensionRegistry);
                bitField0_ |= 0x00000002;
                break;
              } // case 18
              case 26: {
                tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets m =
                    input.readMessage(
                        tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets.parser(),
                        extensionRegistry);
                if (topicsBuilder_ == null) {
                  ensureTopicsIsMutable();
                  topics_.add(m);
                } else {
                  topicsBuilder_.addMessage(m);
                }
                break;
              } // case 26
              case 34: {
                consumer_ = input.readStringRequireUtf8();
                bitField0_ |= 0x00000008;
                break;
              } // case 34
              default: {
                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
                  done = true; // was an endgroup tag
                }
                break;
              } // default:
            } // switch (tag)
          } // while (!done)
        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
          throw e.unwrapIOException();
        } finally {
          onChanged();
        } // finally
        return this;
      }
      private int bitField0_;

      private tech.ydb.proto.OperationProtos.OperationParams operationParams_;
      private com.google.protobuf.SingleFieldBuilderV3<
          tech.ydb.proto.OperationProtos.OperationParams, tech.ydb.proto.OperationProtos.OperationParams.Builder, tech.ydb.proto.OperationProtos.OperationParamsOrBuilder> operationParamsBuilder_;
      /**
       * .Ydb.Operations.OperationParams operation_params = 1;
       * @return Whether the operationParams field is set.
       */
      public boolean hasOperationParams() {
        return ((bitField0_ & 0x00000001) != 0);
      }
      /**
       * .Ydb.Operations.OperationParams operation_params = 1;
       * @return The operationParams.
       */
      public tech.ydb.proto.OperationProtos.OperationParams getOperationParams() {
        if (operationParamsBuilder_ == null) {
          return operationParams_ == null ? tech.ydb.proto.OperationProtos.OperationParams.getDefaultInstance() : operationParams_;
        } else {
          return operationParamsBuilder_.getMessage();
        }
      }
      /**
       * .Ydb.Operations.OperationParams operation_params = 1;
       */
      public Builder setOperationParams(tech.ydb.proto.OperationProtos.OperationParams value) {
        if (operationParamsBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          operationParams_ = value;
        } else {
          operationParamsBuilder_.setMessage(value);
        }
        bitField0_ |= 0x00000001;
        onChanged();
        return this;
      }
      /**
       * .Ydb.Operations.OperationParams operation_params = 1;
       */
      public Builder setOperationParams(
          tech.ydb.proto.OperationProtos.OperationParams.Builder builderForValue) {
        if (operationParamsBuilder_ == null) {
          operationParams_ = builderForValue.build();
        } else {
          operationParamsBuilder_.setMessage(builderForValue.build());
        }
        bitField0_ |= 0x00000001;
        onChanged();
        return this;
      }
      /**
       * .Ydb.Operations.OperationParams operation_params = 1;
       */
      public Builder mergeOperationParams(tech.ydb.proto.OperationProtos.OperationParams value) {
        if (operationParamsBuilder_ == null) {
          if (((bitField0_ & 0x00000001) != 0) &&
            operationParams_ != null &&
            operationParams_ != tech.ydb.proto.OperationProtos.OperationParams.getDefaultInstance()) {
            getOperationParamsBuilder().mergeFrom(value);
          } else {
            operationParams_ = value;
          }
        } else {
          operationParamsBuilder_.mergeFrom(value);
        }
        if (operationParams_ != null) {
          bitField0_ |= 0x00000001;
          onChanged();
        }
        return this;
      }
      /**
       * .Ydb.Operations.OperationParams operation_params = 1;
       */
      public Builder clearOperationParams() {
        bitField0_ = (bitField0_ & ~0x00000001);
        operationParams_ = null;
        if (operationParamsBuilder_ != null) {
          operationParamsBuilder_.dispose();
          operationParamsBuilder_ = null;
        }
        onChanged();
        return this;
      }
      /**
       * .Ydb.Operations.OperationParams operation_params = 1;
       */
      public tech.ydb.proto.OperationProtos.OperationParams.Builder getOperationParamsBuilder() {
        bitField0_ |= 0x00000001;
        onChanged();
        return getOperationParamsFieldBuilder().getBuilder();
      }
      /**
       * .Ydb.Operations.OperationParams operation_params = 1;
       */
      public tech.ydb.proto.OperationProtos.OperationParamsOrBuilder getOperationParamsOrBuilder() {
        if (operationParamsBuilder_ != null) {
          return operationParamsBuilder_.getMessageOrBuilder();
        } else {
          return operationParams_ == null ?
              tech.ydb.proto.OperationProtos.OperationParams.getDefaultInstance() : operationParams_;
        }
      }
      /**
       * .Ydb.Operations.OperationParams operation_params = 1;
       */
      private com.google.protobuf.SingleFieldBuilderV3<
          tech.ydb.proto.OperationProtos.OperationParams, tech.ydb.proto.OperationProtos.OperationParams.Builder, tech.ydb.proto.OperationProtos.OperationParamsOrBuilder> 
          getOperationParamsFieldBuilder() {
        if (operationParamsBuilder_ == null) {
          operationParamsBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
              tech.ydb.proto.OperationProtos.OperationParams, tech.ydb.proto.OperationProtos.OperationParams.Builder, tech.ydb.proto.OperationProtos.OperationParamsOrBuilder>(
                  getOperationParams(),
                  getParentForChildren(),
                  isClean());
          operationParams_ = null;
        }
        return operationParamsBuilder_;
      }

      private tech.ydb.proto.topic.YdbTopic.TransactionIdentity tx_;
      private com.google.protobuf.SingleFieldBuilderV3<
          tech.ydb.proto.topic.YdbTopic.TransactionIdentity, tech.ydb.proto.topic.YdbTopic.TransactionIdentity.Builder, tech.ydb.proto.topic.YdbTopic.TransactionIdentityOrBuilder> txBuilder_;
      /**
       * .Ydb.Topic.TransactionIdentity tx = 2;
       * @return Whether the tx field is set.
       */
      public boolean hasTx() {
        return ((bitField0_ & 0x00000002) != 0);
      }
      /**
       * .Ydb.Topic.TransactionIdentity tx = 2;
       * @return The tx.
       */
      public tech.ydb.proto.topic.YdbTopic.TransactionIdentity getTx() {
        if (txBuilder_ == null) {
          return tx_ == null ? tech.ydb.proto.topic.YdbTopic.TransactionIdentity.getDefaultInstance() : tx_;
        } else {
          return txBuilder_.getMessage();
        }
      }
      /**
       * .Ydb.Topic.TransactionIdentity tx = 2;
       */
      public Builder setTx(tech.ydb.proto.topic.YdbTopic.TransactionIdentity value) {
        if (txBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          tx_ = value;
        } else {
          txBuilder_.setMessage(value);
        }
        bitField0_ |= 0x00000002;
        onChanged();
        return this;
      }
      /**
       * .Ydb.Topic.TransactionIdentity tx = 2;
       */
      public Builder setTx(
          tech.ydb.proto.topic.YdbTopic.TransactionIdentity.Builder builderForValue) {
        if (txBuilder_ == null) {
          tx_ = builderForValue.build();
        } else {
          txBuilder_.setMessage(builderForValue.build());
        }
        bitField0_ |= 0x00000002;
        onChanged();
        return this;
      }
      /**
       * .Ydb.Topic.TransactionIdentity tx = 2;
       */
      public Builder mergeTx(tech.ydb.proto.topic.YdbTopic.TransactionIdentity value) {
        if (txBuilder_ == null) {
          if (((bitField0_ & 0x00000002) != 0) &&
            tx_ != null &&
            tx_ != tech.ydb.proto.topic.YdbTopic.TransactionIdentity.getDefaultInstance()) {
            getTxBuilder().mergeFrom(value);
          } else {
            tx_ = value;
          }
        } else {
          txBuilder_.mergeFrom(value);
        }
        if (tx_ != null) {
          bitField0_ |= 0x00000002;
          onChanged();
        }
        return this;
      }
      /**
       * .Ydb.Topic.TransactionIdentity tx = 2;
       */
      public Builder clearTx() {
        bitField0_ = (bitField0_ & ~0x00000002);
        tx_ = null;
        if (txBuilder_ != null) {
          txBuilder_.dispose();
          txBuilder_ = null;
        }
        onChanged();
        return this;
      }
      /**
       * .Ydb.Topic.TransactionIdentity tx = 2;
       */
      public tech.ydb.proto.topic.YdbTopic.TransactionIdentity.Builder getTxBuilder() {
        bitField0_ |= 0x00000002;
        onChanged();
        return getTxFieldBuilder().getBuilder();
      }
      /**
       * .Ydb.Topic.TransactionIdentity tx = 2;
       */
      public tech.ydb.proto.topic.YdbTopic.TransactionIdentityOrBuilder getTxOrBuilder() {
        if (txBuilder_ != null) {
          return txBuilder_.getMessageOrBuilder();
        } else {
          return tx_ == null ?
              tech.ydb.proto.topic.YdbTopic.TransactionIdentity.getDefaultInstance() : tx_;
        }
      }
      /**
       * .Ydb.Topic.TransactionIdentity tx = 2;
       */
      private com.google.protobuf.SingleFieldBuilderV3<
          tech.ydb.proto.topic.YdbTopic.TransactionIdentity, tech.ydb.proto.topic.YdbTopic.TransactionIdentity.Builder, tech.ydb.proto.topic.YdbTopic.TransactionIdentityOrBuilder> 
          getTxFieldBuilder() {
        if (txBuilder_ == null) {
          txBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
              tech.ydb.proto.topic.YdbTopic.TransactionIdentity, tech.ydb.proto.topic.YdbTopic.TransactionIdentity.Builder, tech.ydb.proto.topic.YdbTopic.TransactionIdentityOrBuilder>(
                  getTx(),
                  getParentForChildren(),
                  isClean());
          tx_ = null;
        }
        return txBuilder_;
      }

      private java.util.List topics_ =
        java.util.Collections.emptyList();
      private void ensureTopicsIsMutable() {
        if (!((bitField0_ & 0x00000004) != 0)) {
          topics_ = new java.util.ArrayList(topics_);
          bitField0_ |= 0x00000004;
         }
      }

      private com.google.protobuf.RepeatedFieldBuilderV3<
          tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets, tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets.Builder, tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsetsOrBuilder> topicsBuilder_;

      /**
       * 
       * Ranges of offsets by topics.
       * 
       *
       * repeated .Ydb.Topic.UpdateOffsetsInTransactionRequest.TopicOffsets topics = 3;
       */
      public java.util.List getTopicsList() {
        if (topicsBuilder_ == null) {
          return java.util.Collections.unmodifiableList(topics_);
        } else {
          return topicsBuilder_.getMessageList();
        }
      }
      /**
       * 
       * Ranges of offsets by topics.
       * 
       *
       * repeated .Ydb.Topic.UpdateOffsetsInTransactionRequest.TopicOffsets topics = 3;
       */
      public int getTopicsCount() {
        if (topicsBuilder_ == null) {
          return topics_.size();
        } else {
          return topicsBuilder_.getCount();
        }
      }
      /**
       * 
       * Ranges of offsets by topics.
       * 
       *
       * repeated .Ydb.Topic.UpdateOffsetsInTransactionRequest.TopicOffsets topics = 3;
       */
      public tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets getTopics(int index) {
        if (topicsBuilder_ == null) {
          return topics_.get(index);
        } else {
          return topicsBuilder_.getMessage(index);
        }
      }
      /**
       * 
       * Ranges of offsets by topics.
       * 
       *
       * repeated .Ydb.Topic.UpdateOffsetsInTransactionRequest.TopicOffsets topics = 3;
       */
      public Builder setTopics(
          int index, tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets value) {
        if (topicsBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          ensureTopicsIsMutable();
          topics_.set(index, value);
          onChanged();
        } else {
          topicsBuilder_.setMessage(index, value);
        }
        return this;
      }
      /**
       * 
       * Ranges of offsets by topics.
       * 
       *
       * repeated .Ydb.Topic.UpdateOffsetsInTransactionRequest.TopicOffsets topics = 3;
       */
      public Builder setTopics(
          int index, tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets.Builder builderForValue) {
        if (topicsBuilder_ == null) {
          ensureTopicsIsMutable();
          topics_.set(index, builderForValue.build());
          onChanged();
        } else {
          topicsBuilder_.setMessage(index, builderForValue.build());
        }
        return this;
      }
      /**
       * 
       * Ranges of offsets by topics.
       * 
       *
       * repeated .Ydb.Topic.UpdateOffsetsInTransactionRequest.TopicOffsets topics = 3;
       */
      public Builder addTopics(tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets value) {
        if (topicsBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          ensureTopicsIsMutable();
          topics_.add(value);
          onChanged();
        } else {
          topicsBuilder_.addMessage(value);
        }
        return this;
      }
      /**
       * 
       * Ranges of offsets by topics.
       * 
       *
       * repeated .Ydb.Topic.UpdateOffsetsInTransactionRequest.TopicOffsets topics = 3;
       */
      public Builder addTopics(
          int index, tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets value) {
        if (topicsBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          ensureTopicsIsMutable();
          topics_.add(index, value);
          onChanged();
        } else {
          topicsBuilder_.addMessage(index, value);
        }
        return this;
      }
      /**
       * 
       * Ranges of offsets by topics.
       * 
       *
       * repeated .Ydb.Topic.UpdateOffsetsInTransactionRequest.TopicOffsets topics = 3;
       */
      public Builder addTopics(
          tech.ydb.proto.topic.YdbTopic.UpdateOffsetsInTransactionRequest.TopicOffsets.Builder builderForValue) {
        if (topicsBuilder_ == null) {
          ensureTopicsIsMutable();
          topics_.add(builderForValue.build());
          onChanged();
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       * 
       * Ranges of offsets by topics.
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       *
       * repeated .Ydb.Topic.UpdateOffsetsInTransactionRequest.TopicOffsets topics = 3;
       */
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       * 
       * Ranges of offsets by topics.
       * 
       *
       * repeated .Ydb.Topic.UpdateOffsetsInTransactionRequest.TopicOffsets topics = 3;
       */
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       * 
       * Ranges of offsets by topics.
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       * 
       * Ranges of offsets by topics.
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       *
       * repeated .Ydb.Topic.UpdateOffsetsInTransactionRequest.TopicOffsets topics = 3;
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       * 
       * Ranges of offsets by topics.
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       *
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       * 
       * Ranges of offsets by topics.
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       * 
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       *
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   * 
   * Add offsets to transaction response sent from server to client.
   * 
   *
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   * 
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    /**
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    /**
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    long getPartitionId();

    /**
     * 
     * Path of consumer.
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     *
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     * @return The consumer.
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    java.lang.String getConsumer();
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  }
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    public Builder newBuilderForType() { return newBuilder(); }
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    /**
     * 
     * Commit offset request sent from client to server.
     * 
     *
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      private java.lang.Object path_ = "";
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       * 
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       *
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      /**
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          return b;
        } else {
          return (com.google.protobuf.ByteString) ref;
        }
      }
      /**
       * 
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       * 
       *
       * string path = 2;
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       * @return This builder for chaining.
       */
      public Builder setPath(
          java.lang.String value) {
        if (value == null) { throw new NullPointerException(); }
        path_ = value;
        bitField0_ |= 0x00000002;
        onChanged();
        return this;
      }
      /**
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       * Topic path of partition.
       * 
       *
       * string path = 2;
       * @return This builder for chaining.
       */
      public Builder clearPath() {
        path_ = getDefaultInstance().getPath();
        bitField0_ = (bitField0_ & ~0x00000002);
        onChanged();
        return this;
      }
      /**
       * 
       * Topic path of partition.
       * 
       *
       * string path = 2;
       * @param value The bytes for path to set.
       * @return This builder for chaining.
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      public Builder setPathBytes(
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        if (value == null) { throw new NullPointerException(); }
        checkByteStringIsUtf8(value);
        path_ = value;
        bitField0_ |= 0x00000002;
        onChanged();
        return this;
      }

      private long partitionId_ ;
      /**
       * 
       * Partition identifier.
       * 
       *
       * int64 partition_id = 3;
       * @return The partitionId.
       */
      @java.lang.Override
      public long getPartitionId() {
        return partitionId_;
      }
      /**
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    /**
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     * List of supported codecs by this consumer.
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     * 
     *
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     * 
     * List of supported codecs by this consumer.
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    /**
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      /**
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       * 
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      /**
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       * 
       *
       * .Ydb.Topic.MultipleWindowsStat bytes_read = 4;
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      /**
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       *
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       * Maximum of differences between timestamp of read and write timestamp for all messages, read during last minute.
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            com.google.protobuf.Duration.Builder builderForValue) {
          if (maxReadTimeLagBuilder_ == null) {
            maxReadTimeLag_ = builderForValue.build();
          } else {
            maxReadTimeLagBuilder_.setMessage(builderForValue.build());
          }
          bitField0_ |= 0x00000002;
          onChanged();
          return this;
        }
        /**
         * 
         * Maximum of differences between timestamp of read and write timestamp for all messages, read during last minute.
         * 
         *
         * .google.protobuf.Duration max_read_time_lag = 2;
         */
        public Builder mergeMaxReadTimeLag(com.google.protobuf.Duration value) {
          if (maxReadTimeLagBuilder_ == null) {
            if (((bitField0_ & 0x00000002) != 0) &&
              maxReadTimeLag_ != null &&
              maxReadTimeLag_ != com.google.protobuf.Duration.getDefaultInstance()) {
              getMaxReadTimeLagBuilder().mergeFrom(value);
            } else {
              maxReadTimeLag_ = value;
            }
          } else {
            maxReadTimeLagBuilder_.mergeFrom(value);
          }
          if (maxReadTimeLag_ != null) {
            bitField0_ |= 0x00000002;
            onChanged();
          }
          return this;
        }
        /**
         * 
         * Maximum of differences between timestamp of read and write timestamp for all messages, read during last minute.
         * 
         *
         * .google.protobuf.Duration max_read_time_lag = 2;
         */
        public Builder clearMaxReadTimeLag() {
          bitField0_ = (bitField0_ & ~0x00000002);
          maxReadTimeLag_ = null;
          if (maxReadTimeLagBuilder_ != null) {
            maxReadTimeLagBuilder_.dispose();
            maxReadTimeLagBuilder_ = null;
          }
          onChanged();
          return this;
        }
        /**
         * 
         * Maximum of differences between timestamp of read and write timestamp for all messages, read during last minute.
         * 
         *
         * .google.protobuf.Duration max_read_time_lag = 2;
         */
        public com.google.protobuf.Duration.Builder getMaxReadTimeLagBuilder() {
          bitField0_ |= 0x00000002;
          onChanged();
          return getMaxReadTimeLagFieldBuilder().getBuilder();
        }
        /**
         * 
         * Maximum of differences between timestamp of read and write timestamp for all messages, read during last minute.
         * 
         *
         * .google.protobuf.Duration max_read_time_lag = 2;
         */
        public com.google.protobuf.DurationOrBuilder getMaxReadTimeLagOrBuilder() {
          if (maxReadTimeLagBuilder_ != null) {
            return maxReadTimeLagBuilder_.getMessageOrBuilder();
          } else {
            return maxReadTimeLag_ == null ?
                com.google.protobuf.Duration.getDefaultInstance() : maxReadTimeLag_;
          }
        }
        /**
         * 
         * Maximum of differences between timestamp of read and write timestamp for all messages, read during last minute.
         * 
         *
         * .google.protobuf.Duration max_read_time_lag = 2;
         */
        private com.google.protobuf.SingleFieldBuilderV3<
            com.google.protobuf.Duration, com.google.protobuf.Duration.Builder, com.google.protobuf.DurationOrBuilder> 
            getMaxReadTimeLagFieldBuilder() {
          if (maxReadTimeLagBuilder_ == null) {
            maxReadTimeLagBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
                com.google.protobuf.Duration, com.google.protobuf.Duration.Builder, com.google.protobuf.DurationOrBuilder>(
                    getMaxReadTimeLag(),
                    getParentForChildren(),
                    isClean());
            maxReadTimeLag_ = null;
          }
          return maxReadTimeLagBuilder_;
        }

        private com.google.protobuf.Duration maxWriteTimeLag_;
        private com.google.protobuf.SingleFieldBuilderV3<
            com.google.protobuf.Duration, com.google.protobuf.Duration.Builder, com.google.protobuf.DurationOrBuilder> maxWriteTimeLagBuilder_;
        /**
         * 
         * Maximum of differences between write timestamp and create timestamp for all messages, read during last minute.
         * 
         *
         * .google.protobuf.Duration max_write_time_lag = 3;
         * @return Whether the maxWriteTimeLag field is set.
         */
        public boolean hasMaxWriteTimeLag() {
          return ((bitField0_ & 0x00000004) != 0);
        }
        /**
         * 
         * Maximum of differences between write timestamp and create timestamp for all messages, read during last minute.
         * 
         *
         * .google.protobuf.Duration max_write_time_lag = 3;
         * @return The maxWriteTimeLag.
         */
        public com.google.protobuf.Duration getMaxWriteTimeLag() {
          if (maxWriteTimeLagBuilder_ == null) {
            return maxWriteTimeLag_ == null ? com.google.protobuf.Duration.getDefaultInstance() : maxWriteTimeLag_;
          } else {
            return maxWriteTimeLagBuilder_.getMessage();
          }
        }
        /**
         * 
         * Maximum of differences between write timestamp and create timestamp for all messages, read during last minute.
         * 
         *
         * .google.protobuf.Duration max_write_time_lag = 3;
         */
        public Builder setMaxWriteTimeLag(com.google.protobuf.Duration value) {
          if (maxWriteTimeLagBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            maxWriteTimeLag_ = value;
          } else {
            maxWriteTimeLagBuilder_.setMessage(value);
          }
          bitField0_ |= 0x00000004;
          onChanged();
          return this;
        }
        /**
         * 
         * Maximum of differences between write timestamp and create timestamp for all messages, read during last minute.
         * 
         *
         * .google.protobuf.Duration max_write_time_lag = 3;
         */
        public Builder setMaxWriteTimeLag(
            com.google.protobuf.Duration.Builder builderForValue) {
          if (maxWriteTimeLagBuilder_ == null) {
            maxWriteTimeLag_ = builderForValue.build();
          } else {
            maxWriteTimeLagBuilder_.setMessage(builderForValue.build());
          }
          bitField0_ |= 0x00000004;
          onChanged();
          return this;
        }
        /**
         * 
         * Maximum of differences between write timestamp and create timestamp for all messages, read during last minute.
         * 
         *
         * .google.protobuf.Duration max_write_time_lag = 3;
         */
        public Builder mergeMaxWriteTimeLag(com.google.protobuf.Duration value) {
          if (maxWriteTimeLagBuilder_ == null) {
            if (((bitField0_ & 0x00000004) != 0) &&
              maxWriteTimeLag_ != null &&
              maxWriteTimeLag_ != com.google.protobuf.Duration.getDefaultInstance()) {
              getMaxWriteTimeLagBuilder().mergeFrom(value);
            } else {
              maxWriteTimeLag_ = value;
            }
          } else {
            maxWriteTimeLagBuilder_.mergeFrom(value);
          }
          if (maxWriteTimeLag_ != null) {
            bitField0_ |= 0x00000004;
            onChanged();
          }
          return this;
        }
        /**
         * 
         * Maximum of differences between write timestamp and create timestamp for all messages, read during last minute.
         * 
         *
         * .google.protobuf.Duration max_write_time_lag = 3;
         */
        public Builder clearMaxWriteTimeLag() {
          bitField0_ = (bitField0_ & ~0x00000004);
          maxWriteTimeLag_ = null;
          if (maxWriteTimeLagBuilder_ != null) {
            maxWriteTimeLagBuilder_.dispose();
            maxWriteTimeLagBuilder_ = null;
          }
          onChanged();
          return this;
        }
        /**
         * 
         * Maximum of differences between write timestamp and create timestamp for all messages, read during last minute.
         * 
         *
         * .google.protobuf.Duration max_write_time_lag = 3;
         */
        public com.google.protobuf.Duration.Builder getMaxWriteTimeLagBuilder() {
          bitField0_ |= 0x00000004;
          onChanged();
          return getMaxWriteTimeLagFieldBuilder().getBuilder();
        }
        /**
         * 
         * Maximum of differences between write timestamp and create timestamp for all messages, read during last minute.
         * 
         *
         * .google.protobuf.Duration max_write_time_lag = 3;
         */
        public com.google.protobuf.DurationOrBuilder getMaxWriteTimeLagOrBuilder() {
          if (maxWriteTimeLagBuilder_ != null) {
            return maxWriteTimeLagBuilder_.getMessageOrBuilder();
          } else {
            return maxWriteTimeLag_ == null ?
                com.google.protobuf.Duration.getDefaultInstance() : maxWriteTimeLag_;
          }
        }
        /**
         * 
         * Maximum of differences between write timestamp and create timestamp for all messages, read during last minute.
         * 
         *
         * .google.protobuf.Duration max_write_time_lag = 3;
         */
        private com.google.protobuf.SingleFieldBuilderV3<
            com.google.protobuf.Duration, com.google.protobuf.Duration.Builder, com.google.protobuf.DurationOrBuilder> 
            getMaxWriteTimeLagFieldBuilder() {
          if (maxWriteTimeLagBuilder_ == null) {
            maxWriteTimeLagBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
                com.google.protobuf.Duration, com.google.protobuf.Duration.Builder, com.google.protobuf.DurationOrBuilder>(
                    getMaxWriteTimeLag(),
                    getParentForChildren(),
                    isClean());
            maxWriteTimeLag_ = null;
          }
          return maxWriteTimeLagBuilder_;
        }

        private tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat bytesRead_;
        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat, tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat.Builder, tech.ydb.proto.topic.YdbTopic.MultipleWindowsStatOrBuilder> bytesReadBuilder_;
        /**
         * 
         * Bytes read statistics.
         * 
         *
         * .Ydb.Topic.MultipleWindowsStat bytes_read = 4;
         * @return Whether the bytesRead field is set.
         */
        public boolean hasBytesRead() {
          return ((bitField0_ & 0x00000008) != 0);
        }
        /**
         * 
         * Bytes read statistics.
         * 
         *
         * .Ydb.Topic.MultipleWindowsStat bytes_read = 4;
         * @return The bytesRead.
         */
        public tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat getBytesRead() {
          if (bytesReadBuilder_ == null) {
            return bytesRead_ == null ? tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat.getDefaultInstance() : bytesRead_;
          } else {
            return bytesReadBuilder_.getMessage();
          }
        }
        /**
         * 
         * Bytes read statistics.
         * 
         *
         * .Ydb.Topic.MultipleWindowsStat bytes_read = 4;
         */
        public Builder setBytesRead(tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat value) {
          if (bytesReadBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            bytesRead_ = value;
          } else {
            bytesReadBuilder_.setMessage(value);
          }
          bitField0_ |= 0x00000008;
          onChanged();
          return this;
        }
        /**
         * 
         * Bytes read statistics.
         * 
         *
         * .Ydb.Topic.MultipleWindowsStat bytes_read = 4;
         */
        public Builder setBytesRead(
            tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat.Builder builderForValue) {
          if (bytesReadBuilder_ == null) {
            bytesRead_ = builderForValue.build();
          } else {
            bytesReadBuilder_.setMessage(builderForValue.build());
          }
          bitField0_ |= 0x00000008;
          onChanged();
          return this;
        }
        /**
         * 
         * Bytes read statistics.
         * 
         *
         * .Ydb.Topic.MultipleWindowsStat bytes_read = 4;
         */
        public Builder mergeBytesRead(tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat value) {
          if (bytesReadBuilder_ == null) {
            if (((bitField0_ & 0x00000008) != 0) &&
              bytesRead_ != null &&
              bytesRead_ != tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat.getDefaultInstance()) {
              getBytesReadBuilder().mergeFrom(value);
            } else {
              bytesRead_ = value;
            }
          } else {
            bytesReadBuilder_.mergeFrom(value);
          }
          if (bytesRead_ != null) {
            bitField0_ |= 0x00000008;
            onChanged();
          }
          return this;
        }
        /**
         * 
         * Bytes read statistics.
         * 
         *
         * .Ydb.Topic.MultipleWindowsStat bytes_read = 4;
         */
        public Builder clearBytesRead() {
          bitField0_ = (bitField0_ & ~0x00000008);
          bytesRead_ = null;
          if (bytesReadBuilder_ != null) {
            bytesReadBuilder_.dispose();
            bytesReadBuilder_ = null;
          }
          onChanged();
          return this;
        }
        /**
         * 
         * Bytes read statistics.
         * 
         *
         * .Ydb.Topic.MultipleWindowsStat bytes_read = 4;
         */
        public tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat.Builder getBytesReadBuilder() {
          bitField0_ |= 0x00000008;
          onChanged();
          return getBytesReadFieldBuilder().getBuilder();
        }
        /**
         * 
         * Bytes read statistics.
         * 
         *
         * .Ydb.Topic.MultipleWindowsStat bytes_read = 4;
         */
        public tech.ydb.proto.topic.YdbTopic.MultipleWindowsStatOrBuilder getBytesReadOrBuilder() {
          if (bytesReadBuilder_ != null) {
            return bytesReadBuilder_.getMessageOrBuilder();
          } else {
            return bytesRead_ == null ?
                tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat.getDefaultInstance() : bytesRead_;
          }
        }
        /**
         * 
         * Bytes read statistics.
         * 
         *
         * .Ydb.Topic.MultipleWindowsStat bytes_read = 4;
         */
        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat, tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat.Builder, tech.ydb.proto.topic.YdbTopic.MultipleWindowsStatOrBuilder> 
            getBytesReadFieldBuilder() {
          if (bytesReadBuilder_ == null) {
            bytesReadBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
                tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat, tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat.Builder, tech.ydb.proto.topic.YdbTopic.MultipleWindowsStatOrBuilder>(
                    getBytesRead(),
                    getParentForChildren(),
                    isClean());
            bytesRead_ = null;
          }
          return bytesReadBuilder_;
        }
        @java.lang.Override
        public final Builder setUnknownFields(
            final com.google.protobuf.UnknownFieldSet unknownFields) {
          return super.setUnknownFields(unknownFields);
        }

        @java.lang.Override
        public final Builder mergeUnknownFields(
            final com.google.protobuf.UnknownFieldSet unknownFields) {
          return super.mergeUnknownFields(unknownFields);
        }


        // @@protoc_insertion_point(builder_scope:Ydb.Topic.Consumer.ConsumerStats)
      }

      // @@protoc_insertion_point(class_scope:Ydb.Topic.Consumer.ConsumerStats)
      private static final tech.ydb.proto.topic.YdbTopic.Consumer.ConsumerStats DEFAULT_INSTANCE;
      static {
        DEFAULT_INSTANCE = new tech.ydb.proto.topic.YdbTopic.Consumer.ConsumerStats();
      }

      public static tech.ydb.proto.topic.YdbTopic.Consumer.ConsumerStats getDefaultInstance() {
        return DEFAULT_INSTANCE;
      }

      private static final com.google.protobuf.Parser
          PARSER = new com.google.protobuf.AbstractParser() {
        @java.lang.Override
        public ConsumerStats parsePartialFrom(
            com.google.protobuf.CodedInputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws com.google.protobuf.InvalidProtocolBufferException {
          Builder builder = newBuilder();
          try {
            builder.mergeFrom(input, extensionRegistry);
          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
            throw e.setUnfinishedMessage(builder.buildPartial());
          } catch (com.google.protobuf.UninitializedMessageException e) {
            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
          } catch (java.io.IOException e) {
            throw new com.google.protobuf.InvalidProtocolBufferException(e)
                .setUnfinishedMessage(builder.buildPartial());
          }
          return builder.buildPartial();
        }
      };

      public static com.google.protobuf.Parser parser() {
        return PARSER;
      }

      @java.lang.Override
      public com.google.protobuf.Parser getParserForType() {
        return PARSER;
      }

      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.Consumer.ConsumerStats getDefaultInstanceForType() {
        return DEFAULT_INSTANCE;
      }

    }

    private int bitField0_;
    public static final int NAME_FIELD_NUMBER = 1;
    @SuppressWarnings("serial")
    private volatile java.lang.Object name_ = "";
    /**
     * 
     * Must have valid not empty name as a key.
     * 
     *
     * string name = 1;
     * @return The name.
     */
    @java.lang.Override
    public java.lang.String getName() {
      java.lang.Object ref = name_;
      if (ref instanceof java.lang.String) {
        return (java.lang.String) ref;
      } else {
        com.google.protobuf.ByteString bs = 
            (com.google.protobuf.ByteString) ref;
        java.lang.String s = bs.toStringUtf8();
        name_ = s;
        return s;
      }
    }
    /**
     * 
     * Must have valid not empty name as a key.
     * 
     *
     * string name = 1;
     * @return The bytes for name.
     */
    @java.lang.Override
    public com.google.protobuf.ByteString
        getNameBytes() {
      java.lang.Object ref = name_;
      if (ref instanceof java.lang.String) {
        com.google.protobuf.ByteString b = 
            com.google.protobuf.ByteString.copyFromUtf8(
                (java.lang.String) ref);
        name_ = b;
        return b;
      } else {
        return (com.google.protobuf.ByteString) ref;
      }
    }

    public static final int IMPORTANT_FIELD_NUMBER = 2;
    private boolean important_ = false;
    /**
     * 
     * Consumer may be marked as 'important'. It means messages for this consumer will never expire due to retention.
     * User should take care that such consumer never stalls, to prevent running out of disk space.
     * Flag that this consumer is important.
     * 
     *
     * bool important = 2;
     * @return The important.
     */
    @java.lang.Override
    public boolean getImportant() {
      return important_;
    }

    public static final int READ_FROM_FIELD_NUMBER = 3;
    private com.google.protobuf.Timestamp readFrom_;
    /**
     * 
     * All messages with smaller server written_at timestamp will be skipped.
     * 
     *
     * .google.protobuf.Timestamp read_from = 3;
     * @return Whether the readFrom field is set.
     */
    @java.lang.Override
    public boolean hasReadFrom() {
      return ((bitField0_ & 0x00000001) != 0);
    }
    /**
     * 
     * All messages with smaller server written_at timestamp will be skipped.
     * 
     *
     * .google.protobuf.Timestamp read_from = 3;
     * @return The readFrom.
     */
    @java.lang.Override
    public com.google.protobuf.Timestamp getReadFrom() {
      return readFrom_ == null ? com.google.protobuf.Timestamp.getDefaultInstance() : readFrom_;
    }
    /**
     * 
     * All messages with smaller server written_at timestamp will be skipped.
     * 
     *
     * .google.protobuf.Timestamp read_from = 3;
     */
    @java.lang.Override
    public com.google.protobuf.TimestampOrBuilder getReadFromOrBuilder() {
      return readFrom_ == null ? com.google.protobuf.Timestamp.getDefaultInstance() : readFrom_;
    }

    public static final int SUPPORTED_CODECS_FIELD_NUMBER = 5;
    private tech.ydb.proto.topic.YdbTopic.SupportedCodecs supportedCodecs_;
    /**
     * 
     * List of supported codecs by this consumer.
     * supported_codecs on topic must be contained inside this list.
     * If empty, codec compatibility check for the consumer is disabled.
     * 
     *
     * .Ydb.Topic.SupportedCodecs supported_codecs = 5;
     * @return Whether the supportedCodecs field is set.
     */
    @java.lang.Override
    public boolean hasSupportedCodecs() {
      return ((bitField0_ & 0x00000002) != 0);
    }
    /**
     * 
     * List of supported codecs by this consumer.
     * supported_codecs on topic must be contained inside this list.
     * If empty, codec compatibility check for the consumer is disabled.
     * 
     *
     * .Ydb.Topic.SupportedCodecs supported_codecs = 5;
     * @return The supportedCodecs.
     */
    @java.lang.Override
    public tech.ydb.proto.topic.YdbTopic.SupportedCodecs getSupportedCodecs() {
      return supportedCodecs_ == null ? tech.ydb.proto.topic.YdbTopic.SupportedCodecs.getDefaultInstance() : supportedCodecs_;
    }
    /**
     * 
     * List of supported codecs by this consumer.
     * supported_codecs on topic must be contained inside this list.
     * If empty, codec compatibility check for the consumer is disabled.
     * 
     *
     * .Ydb.Topic.SupportedCodecs supported_codecs = 5;
     */
    @java.lang.Override
    public tech.ydb.proto.topic.YdbTopic.SupportedCodecsOrBuilder getSupportedCodecsOrBuilder() {
      return supportedCodecs_ == null ? tech.ydb.proto.topic.YdbTopic.SupportedCodecs.getDefaultInstance() : supportedCodecs_;
    }

    public static final int ATTRIBUTES_FIELD_NUMBER = 6;
    private static final class AttributesDefaultEntryHolder {
      static final com.google.protobuf.MapEntry<
          java.lang.String, java.lang.String> defaultEntry =
              com.google.protobuf.MapEntry
              .newDefaultInstance(
                  tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_Consumer_AttributesEntry_descriptor, 
                  com.google.protobuf.WireFormat.FieldType.STRING,
                  "",
                  com.google.protobuf.WireFormat.FieldType.STRING,
                  "");
    }
    @SuppressWarnings("serial")
    private com.google.protobuf.MapField<
        java.lang.String, java.lang.String> attributes_;
    private com.google.protobuf.MapField
    internalGetAttributes() {
      if (attributes_ == null) {
        return com.google.protobuf.MapField.emptyMapField(
            AttributesDefaultEntryHolder.defaultEntry);
      }
      return attributes_;
    }
    public int getAttributesCount() {
      return internalGetAttributes().getMap().size();
    }
    /**
     * 
     * Attributes of consumer
     * 
     *
     * map<string, string> attributes = 6;
     */
    @java.lang.Override
    public boolean containsAttributes(
        java.lang.String key) {
      if (key == null) { throw new NullPointerException("map key"); }
      return internalGetAttributes().getMap().containsKey(key);
    }
    /**
     * Use {@link #getAttributesMap()} instead.
     */
    @java.lang.Override
    @java.lang.Deprecated
    public java.util.Map getAttributes() {
      return getAttributesMap();
    }
    /**
     * 
     * Attributes of consumer
     * 
     *
     * map<string, string> attributes = 6;
     */
    @java.lang.Override
    public java.util.Map getAttributesMap() {
      return internalGetAttributes().getMap();
    }
    /**
     * 
     * Attributes of consumer
     * 
     *
     * map<string, string> attributes = 6;
     */
    @java.lang.Override
    public /* nullable */
java.lang.String getAttributesOrDefault(
        java.lang.String key,
        /* nullable */
java.lang.String defaultValue) {
      if (key == null) { throw new NullPointerException("map key"); }
      java.util.Map map =
          internalGetAttributes().getMap();
      return map.containsKey(key) ? map.get(key) : defaultValue;
    }
    /**
     * 
     * Attributes of consumer
     * 
     *
     * map<string, string> attributes = 6;
     */
    @java.lang.Override
    public java.lang.String getAttributesOrThrow(
        java.lang.String key) {
      if (key == null) { throw new NullPointerException("map key"); }
      java.util.Map map =
          internalGetAttributes().getMap();
      if (!map.containsKey(key)) {
        throw new java.lang.IllegalArgumentException();
      }
      return map.get(key);
    }

    public static final int CONSUMER_STATS_FIELD_NUMBER = 7;
    private tech.ydb.proto.topic.YdbTopic.Consumer.ConsumerStats consumerStats_;
    /**
     * 
     * Filled only when requested statistics in Describe*Request.
     * 
     *
     * .Ydb.Topic.Consumer.ConsumerStats consumer_stats = 7;
     * @return Whether the consumerStats field is set.
     */
    @java.lang.Override
    public boolean hasConsumerStats() {
      return ((bitField0_ & 0x00000004) != 0);
    }
    /**
     * 
     * Filled only when requested statistics in Describe*Request.
     * 
     *
     * .Ydb.Topic.Consumer.ConsumerStats consumer_stats = 7;
     * @return The consumerStats.
     */
    @java.lang.Override
    public tech.ydb.proto.topic.YdbTopic.Consumer.ConsumerStats getConsumerStats() {
      return consumerStats_ == null ? tech.ydb.proto.topic.YdbTopic.Consumer.ConsumerStats.getDefaultInstance() : consumerStats_;
    }
    /**
     * 
     * Filled only when requested statistics in Describe*Request.
     * 
     *
     * .Ydb.Topic.Consumer.ConsumerStats consumer_stats = 7;
     */
    @java.lang.Override
    public tech.ydb.proto.topic.YdbTopic.Consumer.ConsumerStatsOrBuilder getConsumerStatsOrBuilder() {
      return consumerStats_ == null ? tech.ydb.proto.topic.YdbTopic.Consumer.ConsumerStats.getDefaultInstance() : consumerStats_;
    }

    private byte memoizedIsInitialized = -1;
    @java.lang.Override
    public final boolean isInitialized() {
      byte isInitialized = memoizedIsInitialized;
      if (isInitialized == 1) return true;
      if (isInitialized == 0) return false;

      memoizedIsInitialized = 1;
      return true;
    }

    @java.lang.Override
    public void writeTo(com.google.protobuf.CodedOutputStream output)
                        throws java.io.IOException {
      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
        com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
      }
      if (important_ != false) {
        output.writeBool(2, important_);
      }
      if (((bitField0_ & 0x00000001) != 0)) {
        output.writeMessage(3, getReadFrom());
      }
      if (((bitField0_ & 0x00000002) != 0)) {
        output.writeMessage(5, getSupportedCodecs());
      }
      com.google.protobuf.GeneratedMessageV3
        .serializeStringMapTo(
          output,
          internalGetAttributes(),
          AttributesDefaultEntryHolder.defaultEntry,
          6);
      if (((bitField0_ & 0x00000004) != 0)) {
        output.writeMessage(7, getConsumerStats());
      }
      getUnknownFields().writeTo(output);
    }

    @java.lang.Override
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      private tech.ydb.proto.topic.YdbTopic.SupportedCodecs supportedCodecs_;
      private com.google.protobuf.SingleFieldBuilderV3<
          tech.ydb.proto.topic.YdbTopic.SupportedCodecs, tech.ydb.proto.topic.YdbTopic.SupportedCodecs.Builder, tech.ydb.proto.topic.YdbTopic.SupportedCodecsOrBuilder> supportedCodecsBuilder_;
      /**
       * 
       * List of supported codecs by this consumer.
       * supported_codecs on topic must be contained inside this list.
       * If empty, codec compatibility check for the consumer is disabled.
       * 
       *
       * .Ydb.Topic.SupportedCodecs supported_codecs = 5;
       * @return Whether the supportedCodecs field is set.
       */
      public boolean hasSupportedCodecs() {
        return ((bitField0_ & 0x00000008) != 0);
      }
      /**
       * 
       * List of supported codecs by this consumer.
       * supported_codecs on topic must be contained inside this list.
       * If empty, codec compatibility check for the consumer is disabled.
       * 
       *
       * .Ydb.Topic.SupportedCodecs supported_codecs = 5;
       * @return The supportedCodecs.
       */
      public tech.ydb.proto.topic.YdbTopic.SupportedCodecs getSupportedCodecs() {
        if (supportedCodecsBuilder_ == null) {
          return supportedCodecs_ == null ? tech.ydb.proto.topic.YdbTopic.SupportedCodecs.getDefaultInstance() : supportedCodecs_;
        } else {
          return supportedCodecsBuilder_.getMessage();
        }
      }
      /**
       * 
       * List of supported codecs by this consumer.
       * supported_codecs on topic must be contained inside this list.
       * If empty, codec compatibility check for the consumer is disabled.
       * 
       *
       * .Ydb.Topic.SupportedCodecs supported_codecs = 5;
       */
      public Builder setSupportedCodecs(tech.ydb.proto.topic.YdbTopic.SupportedCodecs value) {
        if (supportedCodecsBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          supportedCodecs_ = value;
        } else {
          supportedCodecsBuilder_.setMessage(value);
        }
        bitField0_ |= 0x00000008;
        onChanged();
        return this;
      }
      /**
       * 
       * List of supported codecs by this consumer.
       * supported_codecs on topic must be contained inside this list.
       * If empty, codec compatibility check for the consumer is disabled.
       * 
       *
       * .Ydb.Topic.SupportedCodecs supported_codecs = 5;
       */
      public Builder setSupportedCodecs(
          tech.ydb.proto.topic.YdbTopic.SupportedCodecs.Builder builderForValue) {
        if (supportedCodecsBuilder_ == null) {
          supportedCodecs_ = builderForValue.build();
        } else {
          supportedCodecsBuilder_.setMessage(builderForValue.build());
        }
        bitField0_ |= 0x00000008;
        onChanged();
        return this;
      }
      /**
       * 
       * List of supported codecs by this consumer.
       * supported_codecs on topic must be contained inside this list.
       * If empty, codec compatibility check for the consumer is disabled.
       * 
       *
       * .Ydb.Topic.SupportedCodecs supported_codecs = 5;
       */
      public Builder mergeSupportedCodecs(tech.ydb.proto.topic.YdbTopic.SupportedCodecs value) {
        if (supportedCodecsBuilder_ == null) {
          if (((bitField0_ & 0x00000008) != 0) &&
            supportedCodecs_ != null &&
            supportedCodecs_ != tech.ydb.proto.topic.YdbTopic.SupportedCodecs.getDefaultInstance()) {
            getSupportedCodecsBuilder().mergeFrom(value);
          } else {
            supportedCodecs_ = value;
          }
        } else {
          supportedCodecsBuilder_.mergeFrom(value);
        }
        if (supportedCodecs_ != null) {
          bitField0_ |= 0x00000008;
          onChanged();
        }
        return this;
      }
      /**
       * 
       * List of supported codecs by this consumer.
       * supported_codecs on topic must be contained inside this list.
       * If empty, codec compatibility check for the consumer is disabled.
       * 
       *
       * .Ydb.Topic.SupportedCodecs supported_codecs = 5;
       */
      public Builder clearSupportedCodecs() {
        bitField0_ = (bitField0_ & ~0x00000008);
        supportedCodecs_ = null;
        if (supportedCodecsBuilder_ != null) {
          supportedCodecsBuilder_.dispose();
          supportedCodecsBuilder_ = null;
        }
        onChanged();
        return this;
      }
      /**
       * 
       * List of supported codecs by this consumer.
       * supported_codecs on topic must be contained inside this list.
       * If empty, codec compatibility check for the consumer is disabled.
       * 
       *
       * .Ydb.Topic.SupportedCodecs supported_codecs = 5;
       */
      public tech.ydb.proto.topic.YdbTopic.SupportedCodecs.Builder getSupportedCodecsBuilder() {
        bitField0_ |= 0x00000008;
        onChanged();
        return getSupportedCodecsFieldBuilder().getBuilder();
      }
      /**
       * 
       * List of supported codecs by this consumer.
       * supported_codecs on topic must be contained inside this list.
       * If empty, codec compatibility check for the consumer is disabled.
       * 
       *
       * .Ydb.Topic.SupportedCodecs supported_codecs = 5;
       */
      public tech.ydb.proto.topic.YdbTopic.SupportedCodecsOrBuilder getSupportedCodecsOrBuilder() {
        if (supportedCodecsBuilder_ != null) {
          return supportedCodecsBuilder_.getMessageOrBuilder();
        } else {
          return supportedCodecs_ == null ?
              tech.ydb.proto.topic.YdbTopic.SupportedCodecs.getDefaultInstance() : supportedCodecs_;
        }
      }
      /**
       * 
       * List of supported codecs by this consumer.
       * supported_codecs on topic must be contained inside this list.
       * If empty, codec compatibility check for the consumer is disabled.
       * 
       *
       * .Ydb.Topic.SupportedCodecs supported_codecs = 5;
       */
      private com.google.protobuf.SingleFieldBuilderV3<
          tech.ydb.proto.topic.YdbTopic.SupportedCodecs, tech.ydb.proto.topic.YdbTopic.SupportedCodecs.Builder, tech.ydb.proto.topic.YdbTopic.SupportedCodecsOrBuilder> 
          getSupportedCodecsFieldBuilder() {
        if (supportedCodecsBuilder_ == null) {
          supportedCodecsBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
              tech.ydb.proto.topic.YdbTopic.SupportedCodecs, tech.ydb.proto.topic.YdbTopic.SupportedCodecs.Builder, tech.ydb.proto.topic.YdbTopic.SupportedCodecsOrBuilder>(
                  getSupportedCodecs(),
                  getParentForChildren(),
                  isClean());
          supportedCodecs_ = null;
        }
        return supportedCodecsBuilder_;
      }

      private com.google.protobuf.MapField<
          java.lang.String, java.lang.String> attributes_;
      private com.google.protobuf.MapField
          internalGetAttributes() {
        if (attributes_ == null) {
          return com.google.protobuf.MapField.emptyMapField(
              AttributesDefaultEntryHolder.defaultEntry);
        }
        return attributes_;
      }
      private com.google.protobuf.MapField
          internalGetMutableAttributes() {
        if (attributes_ == null) {
          attributes_ = com.google.protobuf.MapField.newMapField(
              AttributesDefaultEntryHolder.defaultEntry);
        }
        if (!attributes_.isMutable()) {
          attributes_ = attributes_.copy();
        }
        bitField0_ |= 0x00000010;
        onChanged();
        return attributes_;
      }
      public int getAttributesCount() {
        return internalGetAttributes().getMap().size();
      }
      /**
       * 
       * Attributes of consumer
       * 
       *
       * map<string, string> attributes = 6;
       */
      @java.lang.Override
      public boolean containsAttributes(
          java.lang.String key) {
        if (key == null) { throw new NullPointerException("map key"); }
        return internalGetAttributes().getMap().containsKey(key);
      }
      /**
       * Use {@link #getAttributesMap()} instead.
       */
      @java.lang.Override
      @java.lang.Deprecated
      public java.util.Map getAttributes() {
        return getAttributesMap();
      }
      /**
       * 
       * Attributes of consumer
       * 
       *
       * map<string, string> attributes = 6;
       */
      @java.lang.Override
      public java.util.Map getAttributesMap() {
        return internalGetAttributes().getMap();
      }
      /**
       * 
       * Attributes of consumer
       * 
       *
       * map<string, string> attributes = 6;
       */
      @java.lang.Override
      public /* nullable */
java.lang.String getAttributesOrDefault(
          java.lang.String key,
          /* nullable */
java.lang.String defaultValue) {
        if (key == null) { throw new NullPointerException("map key"); }
        java.util.Map map =
            internalGetAttributes().getMap();
        return map.containsKey(key) ? map.get(key) : defaultValue;
      }
      /**
       * 
       * Attributes of consumer
       * 
       *
       * map<string, string> attributes = 6;
       */
      @java.lang.Override
      public java.lang.String getAttributesOrThrow(
          java.lang.String key) {
        if (key == null) { throw new NullPointerException("map key"); }
        java.util.Map map =
            internalGetAttributes().getMap();
        if (!map.containsKey(key)) {
          throw new java.lang.IllegalArgumentException();
        }
        return map.get(key);
      }
      public Builder clearAttributes() {
        bitField0_ = (bitField0_ & ~0x00000010);
        internalGetMutableAttributes().getMutableMap()
            .clear();
        return this;
      }
      /**
       * 
       * Attributes of consumer
       * 
       *
       * map<string, string> attributes = 6;
       */
      public Builder removeAttributes(
          java.lang.String key) {
        if (key == null) { throw new NullPointerException("map key"); }
        internalGetMutableAttributes().getMutableMap()
            .remove(key);
        return this;
      }
      /**
       * Use alternate mutation accessors instead.
       */
      @java.lang.Deprecated
      public java.util.Map
          getMutableAttributes() {
        bitField0_ |= 0x00000010;
        return internalGetMutableAttributes().getMutableMap();
      }
      /**
       * 
       * Attributes of consumer
       * 
       *
       * map<string, string> attributes = 6;
       */
      public Builder putAttributes(
          java.lang.String key,
          java.lang.String value) {
        if (key == null) { throw new NullPointerException("map key"); }
        if (value == null) { throw new NullPointerException("map value"); }
        internalGetMutableAttributes().getMutableMap()
            .put(key, value);
        bitField0_ |= 0x00000010;
        return this;
      }
      /**
       * 
       * Attributes of consumer
       * 
       *
       * map<string, string> attributes = 6;
       */
      public Builder putAllAttributes(
          java.util.Map values) {
        internalGetMutableAttributes().getMutableMap()
            .putAll(values);
        bitField0_ |= 0x00000010;
        return this;
      }

      private tech.ydb.proto.topic.YdbTopic.Consumer.ConsumerStats consumerStats_;
      private com.google.protobuf.SingleFieldBuilderV3<
          tech.ydb.proto.topic.YdbTopic.Consumer.ConsumerStats, tech.ydb.proto.topic.YdbTopic.Consumer.ConsumerStats.Builder, tech.ydb.proto.topic.YdbTopic.Consumer.ConsumerStatsOrBuilder> consumerStatsBuilder_;
      /**
       * 
       * Filled only when requested statistics in Describe*Request.
       * 
       *
       * .Ydb.Topic.Consumer.ConsumerStats consumer_stats = 7;
       * @return Whether the consumerStats field is set.
       */
      public boolean hasConsumerStats() {
        return ((bitField0_ & 0x00000020) != 0);
      }
      /**
       * 
       * Filled only when requested statistics in Describe*Request.
       * 
       *
       * .Ydb.Topic.Consumer.ConsumerStats consumer_stats = 7;
       * @return The consumerStats.
       */
      public tech.ydb.proto.topic.YdbTopic.Consumer.ConsumerStats getConsumerStats() {
        if (consumerStatsBuilder_ == null) {
          return consumerStats_ == null ? tech.ydb.proto.topic.YdbTopic.Consumer.ConsumerStats.getDefaultInstance() : consumerStats_;
        } else {
          return consumerStatsBuilder_.getMessage();
        }
      }
      /**
       * 
       * Filled only when requested statistics in Describe*Request.
       * 
       *
       * .Ydb.Topic.Consumer.ConsumerStats consumer_stats = 7;
       */
      public Builder setConsumerStats(tech.ydb.proto.topic.YdbTopic.Consumer.ConsumerStats value) {
        if (consumerStatsBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          consumerStats_ = value;
        } else {
          consumerStatsBuilder_.setMessage(value);
        }
        bitField0_ |= 0x00000020;
        onChanged();
        return this;
      }
      /**
       * 
       * Filled only when requested statistics in Describe*Request.
       * 
       *
       * .Ydb.Topic.Consumer.ConsumerStats consumer_stats = 7;
       */
      public Builder setConsumerStats(
          tech.ydb.proto.topic.YdbTopic.Consumer.ConsumerStats.Builder builderForValue) {
        if (consumerStatsBuilder_ == null) {
          consumerStats_ = builderForValue.build();
        } else {
          consumerStatsBuilder_.setMessage(builderForValue.build());
        }
        bitField0_ |= 0x00000020;
        onChanged();
        return this;
      }
      /**
       * 
       * Filled only when requested statistics in Describe*Request.
       * 
       *
       * .Ydb.Topic.Consumer.ConsumerStats consumer_stats = 7;
       */
      public Builder mergeConsumerStats(tech.ydb.proto.topic.YdbTopic.Consumer.ConsumerStats value) {
        if (consumerStatsBuilder_ == null) {
          if (((bitField0_ & 0x00000020) != 0) &&
            consumerStats_ != null &&
            consumerStats_ != tech.ydb.proto.topic.YdbTopic.Consumer.ConsumerStats.getDefaultInstance()) {
            getConsumerStatsBuilder().mergeFrom(value);
          } else {
            consumerStats_ = value;
          }
        } else {
          consumerStatsBuilder_.mergeFrom(value);
        }
        if (consumerStats_ != null) {
          bitField0_ |= 0x00000020;
          onChanged();
        }
        return this;
      }
      /**
       * 
       * Filled only when requested statistics in Describe*Request.
       * 
       *
       * .Ydb.Topic.Consumer.ConsumerStats consumer_stats = 7;
       */
      public Builder clearConsumerStats() {
        bitField0_ = (bitField0_ & ~0x00000020);
        consumerStats_ = null;
        if (consumerStatsBuilder_ != null) {
          consumerStatsBuilder_.dispose();
          consumerStatsBuilder_ = null;
        }
        onChanged();
        return this;
      }
      /**
       * 
       * Filled only when requested statistics in Describe*Request.
       * 
       *
       * .Ydb.Topic.Consumer.ConsumerStats consumer_stats = 7;
       */
      public tech.ydb.proto.topic.YdbTopic.Consumer.ConsumerStats.Builder getConsumerStatsBuilder() {
        bitField0_ |= 0x00000020;
        onChanged();
        return getConsumerStatsFieldBuilder().getBuilder();
      }
      /**
       * 
       * Filled only when requested statistics in Describe*Request.
       * 
       *
       * .Ydb.Topic.Consumer.ConsumerStats consumer_stats = 7;
       */
      public tech.ydb.proto.topic.YdbTopic.Consumer.ConsumerStatsOrBuilder getConsumerStatsOrBuilder() {
        if (consumerStatsBuilder_ != null) {
          return consumerStatsBuilder_.getMessageOrBuilder();
        } else {
          return consumerStats_ == null ?
              tech.ydb.proto.topic.YdbTopic.Consumer.ConsumerStats.getDefaultInstance() : consumerStats_;
        }
      }
      /**
       * 
       * Filled only when requested statistics in Describe*Request.
       * 
       *
       * .Ydb.Topic.Consumer.ConsumerStats consumer_stats = 7;
       */
      private com.google.protobuf.SingleFieldBuilderV3<
          tech.ydb.proto.topic.YdbTopic.Consumer.ConsumerStats, tech.ydb.proto.topic.YdbTopic.Consumer.ConsumerStats.Builder, tech.ydb.proto.topic.YdbTopic.Consumer.ConsumerStatsOrBuilder> 
          getConsumerStatsFieldBuilder() {
        if (consumerStatsBuilder_ == null) {
          consumerStatsBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
              tech.ydb.proto.topic.YdbTopic.Consumer.ConsumerStats, tech.ydb.proto.topic.YdbTopic.Consumer.ConsumerStats.Builder, tech.ydb.proto.topic.YdbTopic.Consumer.ConsumerStatsOrBuilder>(
                  getConsumerStats(),
                  getParentForChildren(),
                  isClean());
          consumerStats_ = null;
        }
        return consumerStatsBuilder_;
      }
      @java.lang.Override
      public final Builder setUnknownFields(
          final com.google.protobuf.UnknownFieldSet unknownFields) {
        return super.setUnknownFields(unknownFields);
      }

      @java.lang.Override
      public final Builder mergeUnknownFields(
          final com.google.protobuf.UnknownFieldSet unknownFields) {
        return super.mergeUnknownFields(unknownFields);
      }


      // @@protoc_insertion_point(builder_scope:Ydb.Topic.Consumer)
    }

    // @@protoc_insertion_point(class_scope:Ydb.Topic.Consumer)
    private static final tech.ydb.proto.topic.YdbTopic.Consumer DEFAULT_INSTANCE;
    static {
      DEFAULT_INSTANCE = new tech.ydb.proto.topic.YdbTopic.Consumer();
    }

    public static tech.ydb.proto.topic.YdbTopic.Consumer getDefaultInstance() {
      return DEFAULT_INSTANCE;
    }

    private static final com.google.protobuf.Parser
        PARSER = new com.google.protobuf.AbstractParser() {
      @java.lang.Override
      public Consumer parsePartialFrom(
          com.google.protobuf.CodedInputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        Builder builder = newBuilder();
        try {
          builder.mergeFrom(input, extensionRegistry);
        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
          throw e.setUnfinishedMessage(builder.buildPartial());
        } catch (com.google.protobuf.UninitializedMessageException e) {
          throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
        } catch (java.io.IOException e) {
          throw new com.google.protobuf.InvalidProtocolBufferException(e)
              .setUnfinishedMessage(builder.buildPartial());
        }
        return builder.buildPartial();
      }
    };

    public static com.google.protobuf.Parser parser() {
      return PARSER;
    }

    @java.lang.Override
    public com.google.protobuf.Parser getParserForType() {
      return PARSER;
    }

    @java.lang.Override
    public tech.ydb.proto.topic.YdbTopic.Consumer getDefaultInstanceForType() {
      return DEFAULT_INSTANCE;
    }

  }

  public interface AlterConsumerOrBuilder extends
      // @@protoc_insertion_point(interface_extends:Ydb.Topic.AlterConsumer)
      com.google.protobuf.MessageOrBuilder {

    /**
     * 
     * Must have valid not empty name as a key.
     * 
     *
     * string name = 1;
     * @return The name.
     */
    java.lang.String getName();
    /**
     * 
     * Must have valid not empty name as a key.
     * 
     *
     * string name = 1;
     * @return The bytes for name.
     */
    com.google.protobuf.ByteString
        getNameBytes();

    /**
     * 
     * Consumer may be marked as 'important'. It means messages for this consumer will never expire due to retention.
     * User should take care that such consumer never stalls, to prevent running out of disk space.
     * Flag that this consumer is important.
     * 
     *
     * optional bool set_important = 2;
     * @return Whether the setImportant field is set.
     */
    boolean hasSetImportant();
    /**
     * 
     * Consumer may be marked as 'important'. It means messages for this consumer will never expire due to retention.
     * User should take care that such consumer never stalls, to prevent running out of disk space.
     * Flag that this consumer is important.
     * 
     *
     * optional bool set_important = 2;
     * @return The setImportant.
     */
    boolean getSetImportant();

    /**
     * 
     * All messages with smaller server written_at timestamp will be skipped.
     * 
     *
     * .google.protobuf.Timestamp set_read_from = 3;
     * @return Whether the setReadFrom field is set.
     */
    boolean hasSetReadFrom();
    /**
     * 
     * All messages with smaller server written_at timestamp will be skipped.
     * 
     *
     * .google.protobuf.Timestamp set_read_from = 3;
     * @return The setReadFrom.
     */
    com.google.protobuf.Timestamp getSetReadFrom();
    /**
     * 
     * All messages with smaller server written_at timestamp will be skipped.
     * 
     *
     * .google.protobuf.Timestamp set_read_from = 3;
     */
    com.google.protobuf.TimestampOrBuilder getSetReadFromOrBuilder();

    /**
     * 
     * List of supported codecs by this consumer.
     * supported_codecs on topic must be contained inside this list.
     * If empty, codec compatibility check for the consumer is disabled.
     * 
     *
     * .Ydb.Topic.SupportedCodecs set_supported_codecs = 5;
     * @return Whether the setSupportedCodecs field is set.
     */
    boolean hasSetSupportedCodecs();
    /**
     * 
     * List of supported codecs by this consumer.
     * supported_codecs on topic must be contained inside this list.
     * If empty, codec compatibility check for the consumer is disabled.
     * 
     *
     * .Ydb.Topic.SupportedCodecs set_supported_codecs = 5;
     * @return The setSupportedCodecs.
     */
    tech.ydb.proto.topic.YdbTopic.SupportedCodecs getSetSupportedCodecs();
    /**
     * 
     * List of supported codecs by this consumer.
     * supported_codecs on topic must be contained inside this list.
     * If empty, codec compatibility check for the consumer is disabled.
     * 
     *
     * .Ydb.Topic.SupportedCodecs set_supported_codecs = 5;
     */
    tech.ydb.proto.topic.YdbTopic.SupportedCodecsOrBuilder getSetSupportedCodecsOrBuilder();

    /**
     * 
     * User and server attributes of consumer. Server attributes starts from "_" and will be validated by server.
     * Leave the value blank to drop an attribute.
     * 
     *
     * map<string, string> alter_attributes = 6;
     */
    int getAlterAttributesCount();
    /**
     * 
     * User and server attributes of consumer. Server attributes starts from "_" and will be validated by server.
     * Leave the value blank to drop an attribute.
     * 
     *
     * map<string, string> alter_attributes = 6;
     */
    boolean containsAlterAttributes(
        java.lang.String key);
    /**
     * Use {@link #getAlterAttributesMap()} instead.
     */
    @java.lang.Deprecated
    java.util.Map
    getAlterAttributes();
    /**
     * 
     * User and server attributes of consumer. Server attributes starts from "_" and will be validated by server.
     * Leave the value blank to drop an attribute.
     * 
     *
     * map<string, string> alter_attributes = 6;
     */
    java.util.Map
    getAlterAttributesMap();
    /**
     * 
     * User and server attributes of consumer. Server attributes starts from "_" and will be validated by server.
     * Leave the value blank to drop an attribute.
     * 
     *
     * map<string, string> alter_attributes = 6;
     */
    /* nullable */
java.lang.String getAlterAttributesOrDefault(
        java.lang.String key,
        /* nullable */
java.lang.String defaultValue);
    /**
     * 
     * User and server attributes of consumer. Server attributes starts from "_" and will be validated by server.
     * Leave the value blank to drop an attribute.
     * 
     *
     * map<string, string> alter_attributes = 6;
     */
    java.lang.String getAlterAttributesOrThrow(
        java.lang.String key);
  }
  /**
   * 
   * Consumer alter description.
   * 
   *
   * Protobuf type {@code Ydb.Topic.AlterConsumer}
   */
  public static final class AlterConsumer extends
      com.google.protobuf.GeneratedMessageV3 implements
      // @@protoc_insertion_point(message_implements:Ydb.Topic.AlterConsumer)
      AlterConsumerOrBuilder {
  private static final long serialVersionUID = 0L;
    // Use AlterConsumer.newBuilder() to construct.
    private AlterConsumer(com.google.protobuf.GeneratedMessageV3.Builder builder) {
      super(builder);
    }
    private AlterConsumer() {
      name_ = "";
    }

    @java.lang.Override
    @SuppressWarnings({"unused"})
    protected java.lang.Object newInstance(
        UnusedPrivateParameter unused) {
      return new AlterConsumer();
    }

    public static final com.google.protobuf.Descriptors.Descriptor
        getDescriptor() {
      return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_AlterConsumer_descriptor;
    }

    @SuppressWarnings({"rawtypes"})
    @java.lang.Override
    protected com.google.protobuf.MapField internalGetMapField(
        int number) {
      switch (number) {
        case 6:
          return internalGetAlterAttributes();
        default:
          throw new RuntimeException(
              "Invalid map field number: " + number);
      }
    }
    @java.lang.Override
    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
        internalGetFieldAccessorTable() {
      return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_AlterConsumer_fieldAccessorTable
          .ensureFieldAccessorsInitialized(
              tech.ydb.proto.topic.YdbTopic.AlterConsumer.class, tech.ydb.proto.topic.YdbTopic.AlterConsumer.Builder.class);
    }

    private int bitField0_;
    public static final int NAME_FIELD_NUMBER = 1;
    @SuppressWarnings("serial")
    private volatile java.lang.Object name_ = "";
    /**
     * 
     * Must have valid not empty name as a key.
     * 
     *
     * string name = 1;
     * @return The name.
     */
    @java.lang.Override
    public java.lang.String getName() {
      java.lang.Object ref = name_;
      if (ref instanceof java.lang.String) {
        return (java.lang.String) ref;
      } else {
        com.google.protobuf.ByteString bs = 
            (com.google.protobuf.ByteString) ref;
        java.lang.String s = bs.toStringUtf8();
        name_ = s;
        return s;
      }
    }
    /**
     * 
     * Must have valid not empty name as a key.
     * 
     *
     * string name = 1;
     * @return The bytes for name.
     */
    @java.lang.Override
    public com.google.protobuf.ByteString
        getNameBytes() {
      java.lang.Object ref = name_;
      if (ref instanceof java.lang.String) {
        com.google.protobuf.ByteString b = 
            com.google.protobuf.ByteString.copyFromUtf8(
                (java.lang.String) ref);
        name_ = b;
        return b;
      } else {
        return (com.google.protobuf.ByteString) ref;
      }
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    public static final int SET_IMPORTANT_FIELD_NUMBER = 2;
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        java.lang.Object ref = name_;
        if (ref instanceof String) {
          com.google.protobuf.ByteString b = 
              com.google.protobuf.ByteString.copyFromUtf8(
                  (java.lang.String) ref);
          name_ = b;
          return b;
        } else {
          return (com.google.protobuf.ByteString) ref;
        }
      }
      /**
       * 
       * Must have valid not empty name as a key.
       * 
       *
       * string name = 1;
       * @param value The name to set.
       * @return This builder for chaining.
       */
      public Builder setName(
          java.lang.String value) {
        if (value == null) { throw new NullPointerException(); }
        name_ = value;
        bitField0_ |= 0x00000001;
        onChanged();
        return this;
      }
      /**
       * 
       * Must have valid not empty name as a key.
       * 
       *
       * string name = 1;
       * @return This builder for chaining.
       */
      public Builder clearName() {
        name_ = getDefaultInstance().getName();
        bitField0_ = (bitField0_ & ~0x00000001);
        onChanged();
        return this;
      }
      /**
       * 
       * Must have valid not empty name as a key.
       * 
       *
       * string name = 1;
       * @param value The bytes for name to set.
       * @return This builder for chaining.
       */
      public Builder setNameBytes(
          com.google.protobuf.ByteString value) {
        if (value == null) { throw new NullPointerException(); }
        checkByteStringIsUtf8(value);
        name_ = value;
        bitField0_ |= 0x00000001;
        onChanged();
        return this;
      }

      private boolean setImportant_ ;
      /**
       * 
       * Consumer may be marked as 'important'. It means messages for this consumer will never expire due to retention.
       * User should take care that such consumer never stalls, to prevent running out of disk space.
       * Flag that this consumer is important.
       * 
       *
       * optional bool set_important = 2;
       * @return Whether the setImportant field is set.
       */
      @java.lang.Override
      public boolean hasSetImportant() {
        return ((bitField0_ & 0x00000002) != 0);
      }
      /**
       * 
       * Consumer may be marked as 'important'. It means messages for this consumer will never expire due to retention.
       * User should take care that such consumer never stalls, to prevent running out of disk space.
       * Flag that this consumer is important.
       * 
       *
       * optional bool set_important = 2;
       * @return The setImportant.
       */
      @java.lang.Override
      public boolean getSetImportant() {
        return setImportant_;
      }
      /**
       * 
       * Consumer may be marked as 'important'. It means messages for this consumer will never expire due to retention.
       * User should take care that such consumer never stalls, to prevent running out of disk space.
       * Flag that this consumer is important.
       * 
       *
       * optional bool set_important = 2;
       * @param value The setImportant to set.
       * @return This builder for chaining.
       */
      public Builder setSetImportant(boolean value) {

        setImportant_ = value;
        bitField0_ |= 0x00000002;
        onChanged();
        return this;
      }
      /**
       * 
       * Consumer may be marked as 'important'. It means messages for this consumer will never expire due to retention.
       * User should take care that such consumer never stalls, to prevent running out of disk space.
       * Flag that this consumer is important.
       * 
       *
       * optional bool set_important = 2;
       * @return This builder for chaining.
       */
      public Builder clearSetImportant() {
        bitField0_ = (bitField0_ & ~0x00000002);
        setImportant_ = false;
        onChanged();
        return this;
      }

      private com.google.protobuf.Timestamp setReadFrom_;
      private com.google.protobuf.SingleFieldBuilderV3<
          com.google.protobuf.Timestamp, com.google.protobuf.Timestamp.Builder, com.google.protobuf.TimestampOrBuilder> setReadFromBuilder_;
      /**
       * 
       * All messages with smaller server written_at timestamp will be skipped.
       * 
       *
       * .google.protobuf.Timestamp set_read_from = 3;
       * @return Whether the setReadFrom field is set.
       */
      public boolean hasSetReadFrom() {
        return ((bitField0_ & 0x00000004) != 0);
      }
      /**
       * 
       * All messages with smaller server written_at timestamp will be skipped.
       * 
       *
       * .google.protobuf.Timestamp set_read_from = 3;
       * @return The setReadFrom.
       */
      public com.google.protobuf.Timestamp getSetReadFrom() {
        if (setReadFromBuilder_ == null) {
          return setReadFrom_ == null ? com.google.protobuf.Timestamp.getDefaultInstance() : setReadFrom_;
        } else {
          return setReadFromBuilder_.getMessage();
        }
      }
      /**
       * 
       * All messages with smaller server written_at timestamp will be skipped.
       * 
       *
       * .google.protobuf.Timestamp set_read_from = 3;
       */
      public Builder setSetReadFrom(com.google.protobuf.Timestamp value) {
        if (setReadFromBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          setReadFrom_ = value;
        } else {
          setReadFromBuilder_.setMessage(value);
        }
        bitField0_ |= 0x00000004;
        onChanged();
        return this;
      }
      /**
       * 
       * All messages with smaller server written_at timestamp will be skipped.
       * 
       *
       * .google.protobuf.Timestamp set_read_from = 3;
       */
      public Builder setSetReadFrom(
          com.google.protobuf.Timestamp.Builder builderForValue) {
        if (setReadFromBuilder_ == null) {
          setReadFrom_ = builderForValue.build();
        } else {
          setReadFromBuilder_.setMessage(builderForValue.build());
        }
        bitField0_ |= 0x00000004;
        onChanged();
        return this;
      }
      /**
       * 
       * All messages with smaller server written_at timestamp will be skipped.
       * 
       *
       * .google.protobuf.Timestamp set_read_from = 3;
       */
      public Builder mergeSetReadFrom(com.google.protobuf.Timestamp value) {
        if (setReadFromBuilder_ == null) {
          if (((bitField0_ & 0x00000004) != 0) &&
            setReadFrom_ != null &&
            setReadFrom_ != com.google.protobuf.Timestamp.getDefaultInstance()) {
            getSetReadFromBuilder().mergeFrom(value);
          } else {
            setReadFrom_ = value;
          }
        } else {
          setReadFromBuilder_.mergeFrom(value);
        }
        if (setReadFrom_ != null) {
          bitField0_ |= 0x00000004;
          onChanged();
        }
        return this;
      }
      /**
       * 
       * All messages with smaller server written_at timestamp will be skipped.
       * 
       *
       * .google.protobuf.Timestamp set_read_from = 3;
       */
      public Builder clearSetReadFrom() {
        bitField0_ = (bitField0_ & ~0x00000004);
        setReadFrom_ = null;
        if (setReadFromBuilder_ != null) {
          setReadFromBuilder_.dispose();
          setReadFromBuilder_ = null;
        }
        onChanged();
        return this;
      }
      /**
       * 
       * All messages with smaller server written_at timestamp will be skipped.
       * 
       *
       * .google.protobuf.Timestamp set_read_from = 3;
       */
      public com.google.protobuf.Timestamp.Builder getSetReadFromBuilder() {
        bitField0_ |= 0x00000004;
        onChanged();
        return getSetReadFromFieldBuilder().getBuilder();
      }
      /**
       * 
       * All messages with smaller server written_at timestamp will be skipped.
       * 
       *
       * .google.protobuf.Timestamp set_read_from = 3;
       */
      public com.google.protobuf.TimestampOrBuilder getSetReadFromOrBuilder() {
        if (setReadFromBuilder_ != null) {
          return setReadFromBuilder_.getMessageOrBuilder();
        } else {
          return setReadFrom_ == null ?
              com.google.protobuf.Timestamp.getDefaultInstance() : setReadFrom_;
        }
      }
      /**
       * 
       * All messages with smaller server written_at timestamp will be skipped.
       * 
       *
       * .google.protobuf.Timestamp set_read_from = 3;
       */
      private com.google.protobuf.SingleFieldBuilderV3<
          com.google.protobuf.Timestamp, com.google.protobuf.Timestamp.Builder, com.google.protobuf.TimestampOrBuilder> 
          getSetReadFromFieldBuilder() {
        if (setReadFromBuilder_ == null) {
          setReadFromBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
              com.google.protobuf.Timestamp, com.google.protobuf.Timestamp.Builder, com.google.protobuf.TimestampOrBuilder>(
                  getSetReadFrom(),
                  getParentForChildren(),
                  isClean());
          setReadFrom_ = null;
        }
        return setReadFromBuilder_;
      }

      private tech.ydb.proto.topic.YdbTopic.SupportedCodecs setSupportedCodecs_;
      private com.google.protobuf.SingleFieldBuilderV3<
          tech.ydb.proto.topic.YdbTopic.SupportedCodecs, tech.ydb.proto.topic.YdbTopic.SupportedCodecs.Builder, tech.ydb.proto.topic.YdbTopic.SupportedCodecsOrBuilder> setSupportedCodecsBuilder_;
      /**
       * 
       * List of supported codecs by this consumer.
       * supported_codecs on topic must be contained inside this list.
       * If empty, codec compatibility check for the consumer is disabled.
       * 
       *
       * .Ydb.Topic.SupportedCodecs set_supported_codecs = 5;
       * @return Whether the setSupportedCodecs field is set.
       */
      public boolean hasSetSupportedCodecs() {
        return ((bitField0_ & 0x00000008) != 0);
      }
      /**
       * 
       * List of supported codecs by this consumer.
       * supported_codecs on topic must be contained inside this list.
       * If empty, codec compatibility check for the consumer is disabled.
       * 
       *
       * .Ydb.Topic.SupportedCodecs set_supported_codecs = 5;
       * @return The setSupportedCodecs.
       */
      public tech.ydb.proto.topic.YdbTopic.SupportedCodecs getSetSupportedCodecs() {
        if (setSupportedCodecsBuilder_ == null) {
          return setSupportedCodecs_ == null ? tech.ydb.proto.topic.YdbTopic.SupportedCodecs.getDefaultInstance() : setSupportedCodecs_;
        } else {
          return setSupportedCodecsBuilder_.getMessage();
        }
      }
      /**
       * 
       * List of supported codecs by this consumer.
       * supported_codecs on topic must be contained inside this list.
       * If empty, codec compatibility check for the consumer is disabled.
       * 
       *
       * .Ydb.Topic.SupportedCodecs set_supported_codecs = 5;
       */
      public Builder setSetSupportedCodecs(tech.ydb.proto.topic.YdbTopic.SupportedCodecs value) {
        if (setSupportedCodecsBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          setSupportedCodecs_ = value;
        } else {
          setSupportedCodecsBuilder_.setMessage(value);
        }
        bitField0_ |= 0x00000008;
        onChanged();
        return this;
      }
      /**
       * 
       * List of supported codecs by this consumer.
       * supported_codecs on topic must be contained inside this list.
       * If empty, codec compatibility check for the consumer is disabled.
       * 
       *
       * .Ydb.Topic.SupportedCodecs set_supported_codecs = 5;
       */
      public Builder setSetSupportedCodecs(
          tech.ydb.proto.topic.YdbTopic.SupportedCodecs.Builder builderForValue) {
        if (setSupportedCodecsBuilder_ == null) {
          setSupportedCodecs_ = builderForValue.build();
        } else {
          setSupportedCodecsBuilder_.setMessage(builderForValue.build());
        }
        bitField0_ |= 0x00000008;
        onChanged();
        return this;
      }
      /**
       * 
       * List of supported codecs by this consumer.
       * supported_codecs on topic must be contained inside this list.
       * If empty, codec compatibility check for the consumer is disabled.
       * 
       *
       * .Ydb.Topic.SupportedCodecs set_supported_codecs = 5;
       */
      public Builder mergeSetSupportedCodecs(tech.ydb.proto.topic.YdbTopic.SupportedCodecs value) {
        if (setSupportedCodecsBuilder_ == null) {
          if (((bitField0_ & 0x00000008) != 0) &&
            setSupportedCodecs_ != null &&
            setSupportedCodecs_ != tech.ydb.proto.topic.YdbTopic.SupportedCodecs.getDefaultInstance()) {
            getSetSupportedCodecsBuilder().mergeFrom(value);
          } else {
            setSupportedCodecs_ = value;
          }
        } else {
          setSupportedCodecsBuilder_.mergeFrom(value);
        }
        if (setSupportedCodecs_ != null) {
          bitField0_ |= 0x00000008;
          onChanged();
        }
        return this;
      }
      /**
       * 
       * List of supported codecs by this consumer.
       * supported_codecs on topic must be contained inside this list.
       * If empty, codec compatibility check for the consumer is disabled.
       * 
       *
       * .Ydb.Topic.SupportedCodecs set_supported_codecs = 5;
       */
      public Builder clearSetSupportedCodecs() {
        bitField0_ = (bitField0_ & ~0x00000008);
        setSupportedCodecs_ = null;
        if (setSupportedCodecsBuilder_ != null) {
          setSupportedCodecsBuilder_.dispose();
          setSupportedCodecsBuilder_ = null;
        }
        onChanged();
        return this;
      }
      /**
       * 
       * List of supported codecs by this consumer.
       * supported_codecs on topic must be contained inside this list.
       * If empty, codec compatibility check for the consumer is disabled.
       * 
       *
       * .Ydb.Topic.SupportedCodecs set_supported_codecs = 5;
       */
      public tech.ydb.proto.topic.YdbTopic.SupportedCodecs.Builder getSetSupportedCodecsBuilder() {
        bitField0_ |= 0x00000008;
        onChanged();
        return getSetSupportedCodecsFieldBuilder().getBuilder();
      }
      /**
       * 
       * List of supported codecs by this consumer.
       * supported_codecs on topic must be contained inside this list.
       * If empty, codec compatibility check for the consumer is disabled.
       * 
       *
       * .Ydb.Topic.SupportedCodecs set_supported_codecs = 5;
       */
      public tech.ydb.proto.topic.YdbTopic.SupportedCodecsOrBuilder getSetSupportedCodecsOrBuilder() {
        if (setSupportedCodecsBuilder_ != null) {
          return setSupportedCodecsBuilder_.getMessageOrBuilder();
        } else {
          return setSupportedCodecs_ == null ?
              tech.ydb.proto.topic.YdbTopic.SupportedCodecs.getDefaultInstance() : setSupportedCodecs_;
        }
      }
      /**
       * 
       * List of supported codecs by this consumer.
       * supported_codecs on topic must be contained inside this list.
       * If empty, codec compatibility check for the consumer is disabled.
       * 
       *
       * .Ydb.Topic.SupportedCodecs set_supported_codecs = 5;
       */
      private com.google.protobuf.SingleFieldBuilderV3<
          tech.ydb.proto.topic.YdbTopic.SupportedCodecs, tech.ydb.proto.topic.YdbTopic.SupportedCodecs.Builder, tech.ydb.proto.topic.YdbTopic.SupportedCodecsOrBuilder> 
          getSetSupportedCodecsFieldBuilder() {
        if (setSupportedCodecsBuilder_ == null) {
          setSupportedCodecsBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
              tech.ydb.proto.topic.YdbTopic.SupportedCodecs, tech.ydb.proto.topic.YdbTopic.SupportedCodecs.Builder, tech.ydb.proto.topic.YdbTopic.SupportedCodecsOrBuilder>(
                  getSetSupportedCodecs(),
                  getParentForChildren(),
                  isClean());
          setSupportedCodecs_ = null;
        }
        return setSupportedCodecsBuilder_;
      }

      private com.google.protobuf.MapField<
          java.lang.String, java.lang.String> alterAttributes_;
      private com.google.protobuf.MapField
          internalGetAlterAttributes() {
        if (alterAttributes_ == null) {
          return com.google.protobuf.MapField.emptyMapField(
              AlterAttributesDefaultEntryHolder.defaultEntry);
        }
        return alterAttributes_;
      }
      private com.google.protobuf.MapField
          internalGetMutableAlterAttributes() {
        if (alterAttributes_ == null) {
          alterAttributes_ = com.google.protobuf.MapField.newMapField(
              AlterAttributesDefaultEntryHolder.defaultEntry);
        }
        if (!alterAttributes_.isMutable()) {
          alterAttributes_ = alterAttributes_.copy();
        }
        bitField0_ |= 0x00000010;
        onChanged();
        return alterAttributes_;
      }
      public int getAlterAttributesCount() {
        return internalGetAlterAttributes().getMap().size();
      }
      /**
       * 
       * User and server attributes of consumer. Server attributes starts from "_" and will be validated by server.
       * Leave the value blank to drop an attribute.
       * 
       *
       * map<string, string> alter_attributes = 6;
       */
      @java.lang.Override
      public boolean containsAlterAttributes(
          java.lang.String key) {
        if (key == null) { throw new NullPointerException("map key"); }
        return internalGetAlterAttributes().getMap().containsKey(key);
      }
      /**
       * Use {@link #getAlterAttributesMap()} instead.
       */
      @java.lang.Override
      @java.lang.Deprecated
      public java.util.Map getAlterAttributes() {
        return getAlterAttributesMap();
      }
      /**
       * 
       * User and server attributes of consumer. Server attributes starts from "_" and will be validated by server.
       * Leave the value blank to drop an attribute.
       * 
       *
       * map<string, string> alter_attributes = 6;
       */
      @java.lang.Override
      public java.util.Map getAlterAttributesMap() {
        return internalGetAlterAttributes().getMap();
      }
      /**
       * 
       * User and server attributes of consumer. Server attributes starts from "_" and will be validated by server.
       * Leave the value blank to drop an attribute.
       * 
       *
       * map<string, string> alter_attributes = 6;
       */
      @java.lang.Override
      public /* nullable */
java.lang.String getAlterAttributesOrDefault(
          java.lang.String key,
          /* nullable */
java.lang.String defaultValue) {
        if (key == null) { throw new NullPointerException("map key"); }
        java.util.Map map =
            internalGetAlterAttributes().getMap();
        return map.containsKey(key) ? map.get(key) : defaultValue;
      }
      /**
       * 
       * User and server attributes of consumer. Server attributes starts from "_" and will be validated by server.
       * Leave the value blank to drop an attribute.
       * 
       *
       * map<string, string> alter_attributes = 6;
       */
      @java.lang.Override
      public java.lang.String getAlterAttributesOrThrow(
          java.lang.String key) {
        if (key == null) { throw new NullPointerException("map key"); }
        java.util.Map map =
            internalGetAlterAttributes().getMap();
        if (!map.containsKey(key)) {
          throw new java.lang.IllegalArgumentException();
        }
        return map.get(key);
      }
      public Builder clearAlterAttributes() {
        bitField0_ = (bitField0_ & ~0x00000010);
        internalGetMutableAlterAttributes().getMutableMap()
            .clear();
        return this;
      }
      /**
       * 
       * User and server attributes of consumer. Server attributes starts from "_" and will be validated by server.
       * Leave the value blank to drop an attribute.
       * 
       *
       * map<string, string> alter_attributes = 6;
       */
      public Builder removeAlterAttributes(
          java.lang.String key) {
        if (key == null) { throw new NullPointerException("map key"); }
        internalGetMutableAlterAttributes().getMutableMap()
            .remove(key);
        return this;
      }
      /**
       * Use alternate mutation accessors instead.
       */
      @java.lang.Deprecated
      public java.util.Map
          getMutableAlterAttributes() {
        bitField0_ |= 0x00000010;
        return internalGetMutableAlterAttributes().getMutableMap();
      }
      /**
       * 
       * User and server attributes of consumer. Server attributes starts from "_" and will be validated by server.
       * Leave the value blank to drop an attribute.
       * 
       *
       * map<string, string> alter_attributes = 6;
       */
      public Builder putAlterAttributes(
          java.lang.String key,
          java.lang.String value) {
        if (key == null) { throw new NullPointerException("map key"); }
        if (value == null) { throw new NullPointerException("map value"); }
        internalGetMutableAlterAttributes().getMutableMap()
            .put(key, value);
        bitField0_ |= 0x00000010;
        return this;
      }
      /**
       * 
       * User and server attributes of consumer. Server attributes starts from "_" and will be validated by server.
       * Leave the value blank to drop an attribute.
       * 
       *
       * map<string, string> alter_attributes = 6;
       */
      public Builder putAllAlterAttributes(
          java.util.Map values) {
        internalGetMutableAlterAttributes().getMutableMap()
            .putAll(values);
        bitField0_ |= 0x00000010;
        return this;
      }
      @java.lang.Override
      public final Builder setUnknownFields(
          final com.google.protobuf.UnknownFieldSet unknownFields) {
        return super.setUnknownFields(unknownFields);
      }

      @java.lang.Override
      public final Builder mergeUnknownFields(
          final com.google.protobuf.UnknownFieldSet unknownFields) {
        return super.mergeUnknownFields(unknownFields);
      }


      // @@protoc_insertion_point(builder_scope:Ydb.Topic.AlterConsumer)
    }

    // @@protoc_insertion_point(class_scope:Ydb.Topic.AlterConsumer)
    private static final tech.ydb.proto.topic.YdbTopic.AlterConsumer DEFAULT_INSTANCE;
    static {
      DEFAULT_INSTANCE = new tech.ydb.proto.topic.YdbTopic.AlterConsumer();
    }

    public static tech.ydb.proto.topic.YdbTopic.AlterConsumer getDefaultInstance() {
      return DEFAULT_INSTANCE;
    }

    private static final com.google.protobuf.Parser
        PARSER = new com.google.protobuf.AbstractParser() {
      @java.lang.Override
      public AlterConsumer parsePartialFrom(
          com.google.protobuf.CodedInputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        Builder builder = newBuilder();
        try {
          builder.mergeFrom(input, extensionRegistry);
        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
          throw e.setUnfinishedMessage(builder.buildPartial());
        } catch (com.google.protobuf.UninitializedMessageException e) {
          throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
        } catch (java.io.IOException e) {
          throw new com.google.protobuf.InvalidProtocolBufferException(e)
              .setUnfinishedMessage(builder.buildPartial());
        }
        return builder.buildPartial();
      }
    };

    public static com.google.protobuf.Parser parser() {
      return PARSER;
    }

    @java.lang.Override
    public com.google.protobuf.Parser getParserForType() {
      return PARSER;
    }

    @java.lang.Override
    public tech.ydb.proto.topic.YdbTopic.AlterConsumer getDefaultInstanceForType() {
      return DEFAULT_INSTANCE;
    }

  }

  public interface PartitioningSettingsOrBuilder extends
      // @@protoc_insertion_point(interface_extends:Ydb.Topic.PartitioningSettings)
      com.google.protobuf.MessageOrBuilder {

    /**
     * 
     * Minimum partition count auto merge would stop working at.
     * Zero value means default - 1.
     * 
     *
     * int64 min_active_partitions = 1 [(.Ydb.value) = ">= 0"];
     * @return The minActivePartitions.
     */
    long getMinActivePartitions();

    /**
     * 
     * Limit for total partition count, including active (open for write) and read-only partitions.
     * Zero value means default - 100.
     * 
     *
     * int64 partition_count_limit = 2 [(.Ydb.value) = ">= 0"];
     * @return The partitionCountLimit.
     */
    long getPartitionCountLimit();
  }
  /**
   * 
   * Partitioning settings for topic.
   * 
   *
   * Protobuf type {@code Ydb.Topic.PartitioningSettings}
   */
  public static final class PartitioningSettings extends
      com.google.protobuf.GeneratedMessageV3 implements
      // @@protoc_insertion_point(message_implements:Ydb.Topic.PartitioningSettings)
      PartitioningSettingsOrBuilder {
  private static final long serialVersionUID = 0L;
    // Use PartitioningSettings.newBuilder() to construct.
    private PartitioningSettings(com.google.protobuf.GeneratedMessageV3.Builder builder) {
      super(builder);
    }
    private PartitioningSettings() {
    }

    @java.lang.Override
    @SuppressWarnings({"unused"})
    protected java.lang.Object newInstance(
        UnusedPrivateParameter unused) {
      return new PartitioningSettings();
    }

    public static final com.google.protobuf.Descriptors.Descriptor
        getDescriptor() {
      return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_PartitioningSettings_descriptor;
    }

    @java.lang.Override
    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
        internalGetFieldAccessorTable() {
      return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_PartitioningSettings_fieldAccessorTable
          .ensureFieldAccessorsInitialized(
              tech.ydb.proto.topic.YdbTopic.PartitioningSettings.class, tech.ydb.proto.topic.YdbTopic.PartitioningSettings.Builder.class);
    }

    public static final int MIN_ACTIVE_PARTITIONS_FIELD_NUMBER = 1;
    private long minActivePartitions_ = 0L;
    /**
     * 
     * Minimum partition count auto merge would stop working at.
     * Zero value means default - 1.
     * 
     *
     * int64 min_active_partitions = 1 [(.Ydb.value) = ">= 0"];
     * @return The minActivePartitions.
     */
    @java.lang.Override
    public long getMinActivePartitions() {
      return minActivePartitions_;
    }

    public static final int PARTITION_COUNT_LIMIT_FIELD_NUMBER = 2;
    private long partitionCountLimit_ = 0L;
    /**
     * 
     * Limit for total partition count, including active (open for write) and read-only partitions.
     * Zero value means default - 100.
     * 
     *
     * int64 partition_count_limit = 2 [(.Ydb.value) = ">= 0"];
     * @return The partitionCountLimit.
     */
    @java.lang.Override
    public long getPartitionCountLimit() {
      return partitionCountLimit_;
    }

    private byte memoizedIsInitialized = -1;
    @java.lang.Override
    public final boolean isInitialized() {
      byte isInitialized = memoizedIsInitialized;
      if (isInitialized == 1) return true;
      if (isInitialized == 0) return false;

      memoizedIsInitialized = 1;
      return true;
    }

    @java.lang.Override
    public void writeTo(com.google.protobuf.CodedOutputStream output)
                        throws java.io.IOException {
      if (minActivePartitions_ != 0L) {
        output.writeInt64(1, minActivePartitions_);
      }
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    /**
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       * 
       * Minimum partition count auto merge would stop working at.
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       * 
       * Minimum partition count auto merge would stop working at.
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       * 
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       * 
       * Limit for total partition count, including active (open for write) and read-only partitions.
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       * 
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    /**
     * 
     * Minimum partition count auto merge would stop working at.
     * Zero value means default - 1.
     * 
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     * 
     * Minimum partition count auto merge would stop working at.
     * Zero value means default - 1.
     * 
     *
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    long getSetMinActivePartitions();

    /**
     * 
     * Limit for total partition count, including active (open for write) and read-only partitions.
     * Zero value means default - 100.
     * 
     *
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     * @return Whether the setPartitionCountLimit field is set.
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    boolean hasSetPartitionCountLimit();
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     * 
     * Limit for total partition count, including active (open for write) and read-only partitions.
     * Zero value means default - 100.
     * 
     *
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     * @return The setPartitionCountLimit.
     */
    long getSetPartitionCountLimit();
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  /**
   * 
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   * 
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     * Minimum partition count auto merge would stop working at.
     * Zero value means default - 1.
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     * 
     * Limit for total partition count, including active (open for write) and read-only partitions.
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     * 
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    public static tech.ydb.proto.topic.YdbTopic.AlterPartitioningSettings parseFrom(
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    @java.lang.Override
    public Builder newBuilderForType() { return newBuilder(); }
    public static Builder newBuilder() {
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    public static Builder newBuilder(tech.ydb.proto.topic.YdbTopic.AlterPartitioningSettings prototype) {
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    @java.lang.Override
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    @java.lang.Override
    protected Builder newBuilderForType(
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    /**
     * 
     * Partitioning settings for topic.
     * 
     *
     * Protobuf type {@code Ydb.Topic.AlterPartitioningSettings}
     */
    public static final class Builder extends
        com.google.protobuf.GeneratedMessageV3.Builder implements
        // @@protoc_insertion_point(builder_implements:Ydb.Topic.AlterPartitioningSettings)
        tech.ydb.proto.topic.YdbTopic.AlterPartitioningSettingsOrBuilder {
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      @java.lang.Override
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      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.AlterPartitioningSettings buildPartial() {
        tech.ydb.proto.topic.YdbTopic.AlterPartitioningSettings result = new tech.ydb.proto.topic.YdbTopic.AlterPartitioningSettings(this);
        if (bitField0_ != 0) { buildPartial0(result); }
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      private void buildPartial0(tech.ydb.proto.topic.YdbTopic.AlterPartitioningSettings result) {
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      public Builder clearOneof(
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      @java.lang.Override
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      @java.lang.Override
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        if (other instanceof tech.ydb.proto.topic.YdbTopic.AlterPartitioningSettings) {
          return mergeFrom((tech.ydb.proto.topic.YdbTopic.AlterPartitioningSettings)other);
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          super.mergeFrom(other);
          return this;
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      public Builder mergeFrom(tech.ydb.proto.topic.YdbTopic.AlterPartitioningSettings other) {
        if (other == tech.ydb.proto.topic.YdbTopic.AlterPartitioningSettings.getDefaultInstance()) return this;
        if (other.hasSetMinActivePartitions()) {
          setSetMinActivePartitions(other.getSetMinActivePartitions());
        }
        if (other.hasSetPartitionCountLimit()) {
          setSetPartitionCountLimit(other.getSetPartitionCountLimit());
        }
        this.mergeUnknownFields(other.getUnknownFields());
        onChanged();
        return this;
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      @java.lang.Override
      public final boolean isInitialized() {
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      @java.lang.Override
      public Builder mergeFrom(
          com.google.protobuf.CodedInputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
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        if (extensionRegistry == null) {
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        try {
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              case 16: {
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                break;
              } // case 16
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                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
                  done = true; // was an endgroup tag
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              } // default:
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      private int bitField0_;

      private long setMinActivePartitions_ ;
      /**
       * 
       * Minimum partition count auto merge would stop working at.
       * Zero value means default - 1.
       * 
       *
       * optional int64 set_min_active_partitions = 1 [(.Ydb.value) = ">= 0"];
       * @return Whether the setMinActivePartitions field is set.
       */
      @java.lang.Override
      public boolean hasSetMinActivePartitions() {
        return ((bitField0_ & 0x00000001) != 0);
      }
      /**
       * 
       * Minimum partition count auto merge would stop working at.
       * Zero value means default - 1.
       * 
       *
       * optional int64 set_min_active_partitions = 1 [(.Ydb.value) = ">= 0"];
       * @return The setMinActivePartitions.
       */
      @java.lang.Override
      public long getSetMinActivePartitions() {
        return setMinActivePartitions_;
      }
      /**
       * 
       * Minimum partition count auto merge would stop working at.
       * Zero value means default - 1.
       * 
       *
       * optional int64 set_min_active_partitions = 1 [(.Ydb.value) = ">= 0"];
       * @param value The setMinActivePartitions to set.
       * @return This builder for chaining.
       */
      public Builder setSetMinActivePartitions(long value) {

        setMinActivePartitions_ = value;
        bitField0_ |= 0x00000001;
        onChanged();
        return this;
      }
      /**
       * 
       * Minimum partition count auto merge would stop working at.
       * Zero value means default - 1.
       * 
       *
       * optional int64 set_min_active_partitions = 1 [(.Ydb.value) = ">= 0"];
       * @return This builder for chaining.
       */
      public Builder clearSetMinActivePartitions() {
        bitField0_ = (bitField0_ & ~0x00000001);
        setMinActivePartitions_ = 0L;
        onChanged();
        return this;
      }

      private long setPartitionCountLimit_ ;
      /**
       * 
       * Limit for total partition count, including active (open for write) and read-only partitions.
       * Zero value means default - 100.
       * 
       *
       * optional int64 set_partition_count_limit = 2 [(.Ydb.value) = ">= 0"];
       * @return Whether the setPartitionCountLimit field is set.
       */
      @java.lang.Override
      public boolean hasSetPartitionCountLimit() {
        return ((bitField0_ & 0x00000002) != 0);
      }
      /**
       * 
       * Limit for total partition count, including active (open for write) and read-only partitions.
       * Zero value means default - 100.
       * 
       *
       * optional int64 set_partition_count_limit = 2 [(.Ydb.value) = ">= 0"];
       * @return The setPartitionCountLimit.
       */
      @java.lang.Override
      public long getSetPartitionCountLimit() {
        return setPartitionCountLimit_;
      }
      /**
       * 
       * Limit for total partition count, including active (open for write) and read-only partitions.
       * Zero value means default - 100.
       * 
       *
       * optional int64 set_partition_count_limit = 2 [(.Ydb.value) = ">= 0"];
       * @param value The setPartitionCountLimit to set.
       * @return This builder for chaining.
       */
      public Builder setSetPartitionCountLimit(long value) {

        setPartitionCountLimit_ = value;
        bitField0_ |= 0x00000002;
        onChanged();
        return this;
      }
      /**
       * 
       * Limit for total partition count, including active (open for write) and read-only partitions.
       * Zero value means default - 100.
       * 
       *
       * optional int64 set_partition_count_limit = 2 [(.Ydb.value) = ">= 0"];
       * @return This builder for chaining.
       */
      public Builder clearSetPartitionCountLimit() {
        bitField0_ = (bitField0_ & ~0x00000002);
        setPartitionCountLimit_ = 0L;
        onChanged();
        return this;
      }
      @java.lang.Override
      public final Builder setUnknownFields(
          final com.google.protobuf.UnknownFieldSet unknownFields) {
        return super.setUnknownFields(unknownFields);
      }

      @java.lang.Override
      public final Builder mergeUnknownFields(
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        return super.mergeUnknownFields(unknownFields);
      }


      // @@protoc_insertion_point(builder_scope:Ydb.Topic.AlterPartitioningSettings)
    }

    // @@protoc_insertion_point(class_scope:Ydb.Topic.AlterPartitioningSettings)
    private static final tech.ydb.proto.topic.YdbTopic.AlterPartitioningSettings DEFAULT_INSTANCE;
    static {
      DEFAULT_INSTANCE = new tech.ydb.proto.topic.YdbTopic.AlterPartitioningSettings();
    }

    public static tech.ydb.proto.topic.YdbTopic.AlterPartitioningSettings getDefaultInstance() {
      return DEFAULT_INSTANCE;
    }

    private static final com.google.protobuf.Parser
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      @java.lang.Override
      public AlterPartitioningSettings parsePartialFrom(
          com.google.protobuf.CodedInputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        Builder builder = newBuilder();
        try {
          builder.mergeFrom(input, extensionRegistry);
        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
          throw e.setUnfinishedMessage(builder.buildPartial());
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          throw new com.google.protobuf.InvalidProtocolBufferException(e)
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    public static com.google.protobuf.Parser parser() {
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    public com.google.protobuf.Parser getParserForType() {
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    @java.lang.Override
    public tech.ydb.proto.topic.YdbTopic.AlterPartitioningSettings getDefaultInstanceForType() {
      return DEFAULT_INSTANCE;
    }

  }

  public interface CreateTopicRequestOrBuilder extends
      // @@protoc_insertion_point(interface_extends:Ydb.Topic.CreateTopicRequest)
      com.google.protobuf.MessageOrBuilder {

    /**
     * .Ydb.Operations.OperationParams operation_params = 1;
     * @return Whether the operationParams field is set.
     */
    boolean hasOperationParams();
    /**
     * .Ydb.Operations.OperationParams operation_params = 1;
     * @return The operationParams.
     */
    tech.ydb.proto.OperationProtos.OperationParams getOperationParams();
    /**
     * .Ydb.Operations.OperationParams operation_params = 1;
     */
    tech.ydb.proto.OperationProtos.OperationParamsOrBuilder getOperationParamsOrBuilder();

    /**
     * 
     * Topic path.
     * 
     *
     * string path = 2;
     * @return The path.
     */
    java.lang.String getPath();
    /**
     * 
     * Topic path.
     * 
     *
     * string path = 2;
     * @return The bytes for path.
     */
    com.google.protobuf.ByteString
        getPathBytes();

    /**
     * 
     * Settings for partitioning
     * 
     *
     * .Ydb.Topic.PartitioningSettings partitioning_settings = 3;
     * @return Whether the partitioningSettings field is set.
     */
    boolean hasPartitioningSettings();
    /**
     * 
     * Settings for partitioning
     * 
     *
     * .Ydb.Topic.PartitioningSettings partitioning_settings = 3;
     * @return The partitioningSettings.
     */
    tech.ydb.proto.topic.YdbTopic.PartitioningSettings getPartitioningSettings();
    /**
     * 
     * Settings for partitioning
     * 
     *
     * .Ydb.Topic.PartitioningSettings partitioning_settings = 3;
     */
    tech.ydb.proto.topic.YdbTopic.PartitioningSettingsOrBuilder getPartitioningSettingsOrBuilder();

    /**
     * 
     * Retention settings.
     * Currently, only one limit may be set, so other should not be set.
     *
     * How long data in partition should be stored. Must be greater than 0 and less than limit for this database.
     * Default limit - 36 hours.
     * 
     *
     * .google.protobuf.Duration retention_period = 4;
     * @return Whether the retentionPeriod field is set.
     */
    boolean hasRetentionPeriod();
    /**
     * 
     * Retention settings.
     * Currently, only one limit may be set, so other should not be set.
     *
     * How long data in partition should be stored. Must be greater than 0 and less than limit for this database.
     * Default limit - 36 hours.
     * 
     *
     * .google.protobuf.Duration retention_period = 4;
     * @return The retentionPeriod.
     */
    com.google.protobuf.Duration getRetentionPeriod();
    /**
     * 
     * Retention settings.
     * Currently, only one limit may be set, so other should not be set.
     *
     * How long data in partition should be stored. Must be greater than 0 and less than limit for this database.
     * Default limit - 36 hours.
     * 
     *
     * .google.protobuf.Duration retention_period = 4;
     */
    com.google.protobuf.DurationOrBuilder getRetentionPeriodOrBuilder();

    /**
     * 
     * How much data in partition should be stored. Must be greater than 0 and less than limit for this database.
     * Zero value means infinite limit.
     * 
     *
     * int64 retention_storage_mb = 5 [(.Ydb.value) = ">= 0"];
     * @return The retentionStorageMb.
     */
    long getRetentionStorageMb();

    /**
     * 
     * List of allowed codecs for writers.
     * Writes with codec not from this list are forbidden.
     * If empty, codec compatibility check for the topic is disabled.
     * 
     *
     * .Ydb.Topic.SupportedCodecs supported_codecs = 7;
     * @return Whether the supportedCodecs field is set.
     */
    boolean hasSupportedCodecs();
    /**
     * 
     * List of allowed codecs for writers.
     * Writes with codec not from this list are forbidden.
     * If empty, codec compatibility check for the topic is disabled.
     * 
     *
     * .Ydb.Topic.SupportedCodecs supported_codecs = 7;
     * @return The supportedCodecs.
     */
    tech.ydb.proto.topic.YdbTopic.SupportedCodecs getSupportedCodecs();
    /**
     * 
     * List of allowed codecs for writers.
     * Writes with codec not from this list are forbidden.
     * If empty, codec compatibility check for the topic is disabled.
     * 
     *
     * .Ydb.Topic.SupportedCodecs supported_codecs = 7;
     */
    tech.ydb.proto.topic.YdbTopic.SupportedCodecsOrBuilder getSupportedCodecsOrBuilder();

    /**
     * 
     * Partition write speed in bytes per second. Must be less than database limit.
     * Zero value means default limit: 1 MB per second.
     * 
     *
     * int64 partition_write_speed_bytes_per_second = 8 [(.Ydb.value) = ">= 0"];
     * @return The partitionWriteSpeedBytesPerSecond.
     */
    long getPartitionWriteSpeedBytesPerSecond();

    /**
     * 
     * Burst size for write in partition, in bytes. Must be less than database limit.
     * Zero value means default limit: 1 MB.
     * 
     *
     * int64 partition_write_burst_bytes = 9 [(.Ydb.value) = ">= 0"];
     * @return The partitionWriteBurstBytes.
     */
    long getPartitionWriteBurstBytes();

    /**
     * 
     * User and server attributes of topic. Server attributes starts from "_" and will be validated by server.
     * 
     *
     * map<string, string> attributes = 10;
     */
    int getAttributesCount();
    /**
     * 
     * User and server attributes of topic. Server attributes starts from "_" and will be validated by server.
     * 
     *
     * map<string, string> attributes = 10;
     */
    boolean containsAttributes(
        java.lang.String key);
    /**
     * Use {@link #getAttributesMap()} instead.
     */
    @java.lang.Deprecated
    java.util.Map
    getAttributes();
    /**
     * 
     * User and server attributes of topic. Server attributes starts from "_" and will be validated by server.
     * 
     *
     * map<string, string> attributes = 10;
     */
    java.util.Map
    getAttributesMap();
    /**
     * 
     * User and server attributes of topic. Server attributes starts from "_" and will be validated by server.
     * 
     *
     * map<string, string> attributes = 10;
     */
    /* nullable */
java.lang.String getAttributesOrDefault(
        java.lang.String key,
        /* nullable */
java.lang.String defaultValue);
    /**
     * 
     * User and server attributes of topic. Server attributes starts from "_" and will be validated by server.
     * 
     *
     * map<string, string> attributes = 10;
     */
    java.lang.String getAttributesOrThrow(
        java.lang.String key);

    /**
     * 
     * List of consumers for this topic.
     * 
     *
     * repeated .Ydb.Topic.Consumer consumers = 11 [(.Ydb.size) = { ... }
     */
    java.util.List 
        getConsumersList();
    /**
     * 
     * List of consumers for this topic.
     * 
     *
     * repeated .Ydb.Topic.Consumer consumers = 11 [(.Ydb.size) = { ... }
     */
    tech.ydb.proto.topic.YdbTopic.Consumer getConsumers(int index);
    /**
     * 
     * List of consumers for this topic.
     * 
     *
     * repeated .Ydb.Topic.Consumer consumers = 11 [(.Ydb.size) = { ... }
     */
    int getConsumersCount();
    /**
     * 
     * List of consumers for this topic.
     * 
     *
     * repeated .Ydb.Topic.Consumer consumers = 11 [(.Ydb.size) = { ... }
     */
    java.util.List 
        getConsumersOrBuilderList();
    /**
     * 
     * List of consumers for this topic.
     * 
     *
     * repeated .Ydb.Topic.Consumer consumers = 11 [(.Ydb.size) = { ... }
     */
    tech.ydb.proto.topic.YdbTopic.ConsumerOrBuilder getConsumersOrBuilder(
        int index);

    /**
     * 
     * Metering mode for the topic in a serverless database.
     * 
     *
     * .Ydb.Topic.MeteringMode metering_mode = 12;
     * @return The enum numeric value on the wire for meteringMode.
     */
    int getMeteringModeValue();
    /**
     * 
     * Metering mode for the topic in a serverless database.
     * 
     *
     * .Ydb.Topic.MeteringMode metering_mode = 12;
     * @return The meteringMode.
     */
    tech.ydb.proto.topic.YdbTopic.MeteringMode getMeteringMode();
  }
  /**
   * 
   * Create topic request sent from client to server.
   * 
   *
   * Protobuf type {@code Ydb.Topic.CreateTopicRequest}
   */
  public static final class CreateTopicRequest extends
      com.google.protobuf.GeneratedMessageV3 implements
      // @@protoc_insertion_point(message_implements:Ydb.Topic.CreateTopicRequest)
      CreateTopicRequestOrBuilder {
  private static final long serialVersionUID = 0L;
    // Use CreateTopicRequest.newBuilder() to construct.
    private CreateTopicRequest(com.google.protobuf.GeneratedMessageV3.Builder builder) {
      super(builder);
    }
    private CreateTopicRequest() {
      path_ = "";
      consumers_ = java.util.Collections.emptyList();
      meteringMode_ = 0;
    }

    @java.lang.Override
    @SuppressWarnings({"unused"})
    protected java.lang.Object newInstance(
        UnusedPrivateParameter unused) {
      return new CreateTopicRequest();
    }

    public static final com.google.protobuf.Descriptors.Descriptor
        getDescriptor() {
      return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_CreateTopicRequest_descriptor;
    }

    @SuppressWarnings({"rawtypes"})
    @java.lang.Override
    protected com.google.protobuf.MapField internalGetMapField(
        int number) {
      switch (number) {
        case 10:
          return internalGetAttributes();
        default:
          throw new RuntimeException(
              "Invalid map field number: " + number);
      }
    }
    @java.lang.Override
    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
        internalGetFieldAccessorTable() {
      return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_CreateTopicRequest_fieldAccessorTable
          .ensureFieldAccessorsInitialized(
              tech.ydb.proto.topic.YdbTopic.CreateTopicRequest.class, tech.ydb.proto.topic.YdbTopic.CreateTopicRequest.Builder.class);
    }

    private int bitField0_;
    public static final int OPERATION_PARAMS_FIELD_NUMBER = 1;
    private tech.ydb.proto.OperationProtos.OperationParams operationParams_;
    /**
     * .Ydb.Operations.OperationParams operation_params = 1;
     * @return Whether the operationParams field is set.
     */
    @java.lang.Override
    public boolean hasOperationParams() {
      return ((bitField0_ & 0x00000001) != 0);
    }
    /**
     * .Ydb.Operations.OperationParams operation_params = 1;
     * @return The operationParams.
     */
    @java.lang.Override
    public tech.ydb.proto.OperationProtos.OperationParams getOperationParams() {
      return operationParams_ == null ? tech.ydb.proto.OperationProtos.OperationParams.getDefaultInstance() : operationParams_;
    }
    /**
     * .Ydb.Operations.OperationParams operation_params = 1;
     */
    @java.lang.Override
    public tech.ydb.proto.OperationProtos.OperationParamsOrBuilder getOperationParamsOrBuilder() {
      return operationParams_ == null ? tech.ydb.proto.OperationProtos.OperationParams.getDefaultInstance() : operationParams_;
    }

    public static final int PATH_FIELD_NUMBER = 2;
    @SuppressWarnings("serial")
    private volatile java.lang.Object path_ = "";
    /**
     * 
     * Topic path.
     * 
     *
     * string path = 2;
     * @return The path.
     */
    @java.lang.Override
    public java.lang.String getPath() {
      java.lang.Object ref = path_;
      if (ref instanceof java.lang.String) {
        return (java.lang.String) ref;
      } else {
        com.google.protobuf.ByteString bs = 
            (com.google.protobuf.ByteString) ref;
        java.lang.String s = bs.toStringUtf8();
        path_ = s;
        return s;
      }
    }
    /**
     * 
     * Topic path.
     * 
     *
     * string path = 2;
     * @return The bytes for path.
     */
    @java.lang.Override
    public com.google.protobuf.ByteString
        getPathBytes() {
      java.lang.Object ref = path_;
      if (ref instanceof java.lang.String) {
        com.google.protobuf.ByteString b = 
            com.google.protobuf.ByteString.copyFromUtf8(
                (java.lang.String) ref);
        path_ = b;
        return b;
      } else {
        return (com.google.protobuf.ByteString) ref;
      }
    }

    public static final int PARTITIONING_SETTINGS_FIELD_NUMBER = 3;
    private tech.ydb.proto.topic.YdbTopic.PartitioningSettings partitioningSettings_;
    /**
     * 
     * Settings for partitioning
     * 
     *
     * .Ydb.Topic.PartitioningSettings partitioning_settings = 3;
     * @return Whether the partitioningSettings field is set.
     */
    @java.lang.Override
    public boolean hasPartitioningSettings() {
      return ((bitField0_ & 0x00000002) != 0);
    }
    /**
     * 
     * Settings for partitioning
     * 
     *
     * .Ydb.Topic.PartitioningSettings partitioning_settings = 3;
     * @return The partitioningSettings.
     */
    @java.lang.Override
    public tech.ydb.proto.topic.YdbTopic.PartitioningSettings getPartitioningSettings() {
      return partitioningSettings_ == null ? tech.ydb.proto.topic.YdbTopic.PartitioningSettings.getDefaultInstance() : partitioningSettings_;
    }
    /**
     * 
     * Settings for partitioning
     * 
     *
     * .Ydb.Topic.PartitioningSettings partitioning_settings = 3;
     */
    @java.lang.Override
    public tech.ydb.proto.topic.YdbTopic.PartitioningSettingsOrBuilder getPartitioningSettingsOrBuilder() {
      return partitioningSettings_ == null ? tech.ydb.proto.topic.YdbTopic.PartitioningSettings.getDefaultInstance() : partitioningSettings_;
    }

    public static final int RETENTION_PERIOD_FIELD_NUMBER = 4;
    private com.google.protobuf.Duration retentionPeriod_;
    /**
     * 
     * Retention settings.
     * Currently, only one limit may be set, so other should not be set.
     *
     * How long data in partition should be stored. Must be greater than 0 and less than limit for this database.
     * Default limit - 36 hours.
     * 
     *
     * .google.protobuf.Duration retention_period = 4;
     * @return Whether the retentionPeriod field is set.
     */
    @java.lang.Override
    public boolean hasRetentionPeriod() {
      return ((bitField0_ & 0x00000004) != 0);
    }
    /**
     * 
     * Retention settings.
     * Currently, only one limit may be set, so other should not be set.
     *
     * How long data in partition should be stored. Must be greater than 0 and less than limit for this database.
     * Default limit - 36 hours.
     * 
     *
     * .google.protobuf.Duration retention_period = 4;
     * @return The retentionPeriod.
     */
    @java.lang.Override
    public com.google.protobuf.Duration getRetentionPeriod() {
      return retentionPeriod_ == null ? com.google.protobuf.Duration.getDefaultInstance() : retentionPeriod_;
    }
    /**
     * 
     * Retention settings.
     * Currently, only one limit may be set, so other should not be set.
     *
     * How long data in partition should be stored. Must be greater than 0 and less than limit for this database.
     * Default limit - 36 hours.
     * 
     *
     * .google.protobuf.Duration retention_period = 4;
     */
    @java.lang.Override
    public com.google.protobuf.DurationOrBuilder getRetentionPeriodOrBuilder() {
      return retentionPeriod_ == null ? com.google.protobuf.Duration.getDefaultInstance() : retentionPeriod_;
    }

    public static final int RETENTION_STORAGE_MB_FIELD_NUMBER = 5;
    private long retentionStorageMb_ = 0L;
    /**
     * 
     * How much data in partition should be stored. Must be greater than 0 and less than limit for this database.
     * Zero value means infinite limit.
     * 
     *
     * int64 retention_storage_mb = 5 [(.Ydb.value) = ">= 0"];
     * @return The retentionStorageMb.
     */
    @java.lang.Override
    public long getRetentionStorageMb() {
      return retentionStorageMb_;
    }

    public static final int SUPPORTED_CODECS_FIELD_NUMBER = 7;
    private tech.ydb.proto.topic.YdbTopic.SupportedCodecs supportedCodecs_;
    /**
     * 
     * List of allowed codecs for writers.
     * Writes with codec not from this list are forbidden.
     * If empty, codec compatibility check for the topic is disabled.
     * 
     *
     * .Ydb.Topic.SupportedCodecs supported_codecs = 7;
     * @return Whether the supportedCodecs field is set.
     */
    @java.lang.Override
    public boolean hasSupportedCodecs() {
      return ((bitField0_ & 0x00000008) != 0);
    }
    /**
     * 
     * List of allowed codecs for writers.
     * Writes with codec not from this list are forbidden.
     * If empty, codec compatibility check for the topic is disabled.
     * 
     *
     * .Ydb.Topic.SupportedCodecs supported_codecs = 7;
     * @return The supportedCodecs.
     */
    @java.lang.Override
    public tech.ydb.proto.topic.YdbTopic.SupportedCodecs getSupportedCodecs() {
      return supportedCodecs_ == null ? tech.ydb.proto.topic.YdbTopic.SupportedCodecs.getDefaultInstance() : supportedCodecs_;
    }
    /**
     * 
     * List of allowed codecs for writers.
     * Writes with codec not from this list are forbidden.
     * If empty, codec compatibility check for the topic is disabled.
     * 
     *
     * .Ydb.Topic.SupportedCodecs supported_codecs = 7;
     */
    @java.lang.Override
    public tech.ydb.proto.topic.YdbTopic.SupportedCodecsOrBuilder getSupportedCodecsOrBuilder() {
      return supportedCodecs_ == null ? tech.ydb.proto.topic.YdbTopic.SupportedCodecs.getDefaultInstance() : supportedCodecs_;
    }

    public static final int PARTITION_WRITE_SPEED_BYTES_PER_SECOND_FIELD_NUMBER = 8;
    private long partitionWriteSpeedBytesPerSecond_ = 0L;
    /**
     * 
     * Partition write speed in bytes per second. Must be less than database limit.
     * Zero value means default limit: 1 MB per second.
     * 
     *
     * int64 partition_write_speed_bytes_per_second = 8 [(.Ydb.value) = ">= 0"];
     * @return The partitionWriteSpeedBytesPerSecond.
     */
    @java.lang.Override
    public long getPartitionWriteSpeedBytesPerSecond() {
      return partitionWriteSpeedBytesPerSecond_;
    }

    public static final int PARTITION_WRITE_BURST_BYTES_FIELD_NUMBER = 9;
    private long partitionWriteBurstBytes_ = 0L;
    /**
     * 
     * Burst size for write in partition, in bytes. Must be less than database limit.
     * Zero value means default limit: 1 MB.
     * 
     *
     * int64 partition_write_burst_bytes = 9 [(.Ydb.value) = ">= 0"];
     * @return The partitionWriteBurstBytes.
     */
    @java.lang.Override
    public long getPartitionWriteBurstBytes() {
      return partitionWriteBurstBytes_;
    }

    public static final int ATTRIBUTES_FIELD_NUMBER = 10;
    private static final class AttributesDefaultEntryHolder {
      static final com.google.protobuf.MapEntry<
          java.lang.String, java.lang.String> defaultEntry =
              com.google.protobuf.MapEntry
              .newDefaultInstance(
                  tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_CreateTopicRequest_AttributesEntry_descriptor, 
                  com.google.protobuf.WireFormat.FieldType.STRING,
                  "",
                  com.google.protobuf.WireFormat.FieldType.STRING,
                  "");
    }
    @SuppressWarnings("serial")
    private com.google.protobuf.MapField<
        java.lang.String, java.lang.String> attributes_;
    private com.google.protobuf.MapField
    internalGetAttributes() {
      if (attributes_ == null) {
        return com.google.protobuf.MapField.emptyMapField(
            AttributesDefaultEntryHolder.defaultEntry);
      }
      return attributes_;
    }
    public int getAttributesCount() {
      return internalGetAttributes().getMap().size();
    }
    /**
     * 
     * User and server attributes of topic. Server attributes starts from "_" and will be validated by server.
     * 
     *
     * map<string, string> attributes = 10;
     */
    @java.lang.Override
    public boolean containsAttributes(
        java.lang.String key) {
      if (key == null) { throw new NullPointerException("map key"); }
      return internalGetAttributes().getMap().containsKey(key);
    }
    /**
     * Use {@link #getAttributesMap()} instead.
     */
    @java.lang.Override
    @java.lang.Deprecated
    public java.util.Map getAttributes() {
      return getAttributesMap();
    }
    /**
     * 
     * User and server attributes of topic. Server attributes starts from "_" and will be validated by server.
     * 
     *
     * map<string, string> attributes = 10;
     */
    @java.lang.Override
    public java.util.Map getAttributesMap() {
      return internalGetAttributes().getMap();
    }
    /**
     * 
     * User and server attributes of topic. Server attributes starts from "_" and will be validated by server.
     * 
     *
     * map<string, string> attributes = 10;
     */
    @java.lang.Override
    public /* nullable */
java.lang.String getAttributesOrDefault(
        java.lang.String key,
        /* nullable */
java.lang.String defaultValue) {
      if (key == null) { throw new NullPointerException("map key"); }
      java.util.Map map =
          internalGetAttributes().getMap();
      return map.containsKey(key) ? map.get(key) : defaultValue;
    }
    /**
     * 
     * User and server attributes of topic. Server attributes starts from "_" and will be validated by server.
     * 
     *
     * map<string, string> attributes = 10;
     */
    @java.lang.Override
    public java.lang.String getAttributesOrThrow(
        java.lang.String key) {
      if (key == null) { throw new NullPointerException("map key"); }
      java.util.Map map =
          internalGetAttributes().getMap();
      if (!map.containsKey(key)) {
        throw new java.lang.IllegalArgumentException();
      }
      return map.get(key);
    }

    public static final int CONSUMERS_FIELD_NUMBER = 11;
    @SuppressWarnings("serial")
    private java.util.List consumers_;
    /**
     * 
     * List of consumers for this topic.
     * 
     *
     * repeated .Ydb.Topic.Consumer consumers = 11 [(.Ydb.size) = { ... }
     */
    @java.lang.Override
    public java.util.List getConsumersList() {
      return consumers_;
    }
    /**
     * 
     * List of consumers for this topic.
     * 
     *
     * repeated .Ydb.Topic.Consumer consumers = 11 [(.Ydb.size) = { ... }
     */
    @java.lang.Override
    public java.util.List 
        getConsumersOrBuilderList() {
      return consumers_;
    }
    /**
     * 
     * List of consumers for this topic.
     * 
     *
     * repeated .Ydb.Topic.Consumer consumers = 11 [(.Ydb.size) = { ... }
     */
    @java.lang.Override
    public int getConsumersCount() {
      return consumers_.size();
    }
    /**
     * 
     * List of consumers for this topic.
     * 
     *
     * repeated .Ydb.Topic.Consumer consumers = 11 [(.Ydb.size) = { ... }
     */
    @java.lang.Override
    public tech.ydb.proto.topic.YdbTopic.Consumer getConsumers(int index) {
      return consumers_.get(index);
    }
    /**
     * 
     * List of consumers for this topic.
     * 
     *
     * repeated .Ydb.Topic.Consumer consumers = 11 [(.Ydb.size) = { ... }
     */
    @java.lang.Override
    public tech.ydb.proto.topic.YdbTopic.ConsumerOrBuilder getConsumersOrBuilder(
        int index) {
      return consumers_.get(index);
    }

    public static final int METERING_MODE_FIELD_NUMBER = 12;
    private int meteringMode_ = 0;
    /**
     * 
     * Metering mode for the topic in a serverless database.
     * 
     *
     * .Ydb.Topic.MeteringMode metering_mode = 12;
     * @return The enum numeric value on the wire for meteringMode.
     */
    @java.lang.Override public int getMeteringModeValue() {
      return meteringMode_;
    }
    /**
     * 
     * Metering mode for the topic in a serverless database.
     * 
     *
     * .Ydb.Topic.MeteringMode metering_mode = 12;
     * @return The meteringMode.
     */
    @java.lang.Override public tech.ydb.proto.topic.YdbTopic.MeteringMode getMeteringMode() {
      tech.ydb.proto.topic.YdbTopic.MeteringMode result = tech.ydb.proto.topic.YdbTopic.MeteringMode.forNumber(meteringMode_);
      return result == null ? tech.ydb.proto.topic.YdbTopic.MeteringMode.UNRECOGNIZED : result;
    }

    private byte memoizedIsInitialized = -1;
    @java.lang.Override
    public final boolean isInitialized() {
      byte isInitialized = memoizedIsInitialized;
      if (isInitialized == 1) return true;
      if (isInitialized == 0) return false;

      memoizedIsInitialized = 1;
      return true;
    }

    @java.lang.Override
    public void writeTo(com.google.protobuf.CodedOutputStream output)
                        throws java.io.IOException {
      if (((bitField0_ & 0x00000001) != 0)) {
        output.writeMessage(1, getOperationParams());
      }
      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(path_)) {
        com.google.protobuf.GeneratedMessageV3.writeString(output, 2, path_);
      }
      if (((bitField0_ & 0x00000002) != 0)) {
        output.writeMessage(3, getPartitioningSettings());
      }
      if (((bitField0_ & 0x00000004) != 0)) {
        output.writeMessage(4, getRetentionPeriod());
      }
      if (retentionStorageMb_ != 0L) {
        output.writeInt64(5, retentionStorageMb_);
      }
      if (((bitField0_ & 0x00000008) != 0)) {
        output.writeMessage(7, getSupportedCodecs());
      }
      if (partitionWriteSpeedBytesPerSecond_ != 0L) {
        output.writeInt64(8, partitionWriteSpeedBytesPerSecond_);
      }
      if (partitionWriteBurstBytes_ != 0L) {
        output.writeInt64(9, partitionWriteBurstBytes_);
      }
      com.google.protobuf.GeneratedMessageV3
        .serializeStringMapTo(
          output,
          internalGetAttributes(),
          AttributesDefaultEntryHolder.defaultEntry,
          10);
      for (int i = 0; i < consumers_.size(); i++) {
        output.writeMessage(11, consumers_.get(i));
      }
      if (meteringMode_ != tech.ydb.proto.topic.YdbTopic.MeteringMode.METERING_MODE_UNSPECIFIED.getNumber()) {
        output.writeEnum(12, meteringMode_);
      }
      getUnknownFields().writeTo(output);
    }

    @java.lang.Override
    public int getSerializedSize() {
      int size = memoizedSize;
      if (size != -1) return size;

      size = 0;
      if (((bitField0_ & 0x00000001) != 0)) {
        size += com.google.protobuf.CodedOutputStream
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      }
      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(path_)) {
        size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, path_);
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      if (((bitField0_ & 0x00000002) != 0)) {
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      if (((bitField0_ & 0x00000004) != 0)) {
        size += com.google.protobuf.CodedOutputStream
          .computeMessageSize(4, getRetentionPeriod());
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      if (retentionStorageMb_ != 0L) {
        size += com.google.protobuf.CodedOutputStream
          .computeInt64Size(5, retentionStorageMb_);
      }
      if (((bitField0_ & 0x00000008) != 0)) {
        size += com.google.protobuf.CodedOutputStream
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      }
      if (partitionWriteSpeedBytesPerSecond_ != 0L) {
        size += com.google.protobuf.CodedOutputStream
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      if (partitionWriteBurstBytes_ != 0L) {
        size += com.google.protobuf.CodedOutputStream
          .computeInt64Size(9, partitionWriteBurstBytes_);
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      for (java.util.Map.Entry entry
           : internalGetAttributes().getMap().entrySet()) {
        com.google.protobuf.MapEntry
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            .setValue(entry.getValue())
            .build();
        size += com.google.protobuf.CodedOutputStream
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      for (int i = 0; i < consumers_.size(); i++) {
        size += com.google.protobuf.CodedOutputStream
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      if (meteringMode_ != tech.ydb.proto.topic.YdbTopic.MeteringMode.METERING_MODE_UNSPECIFIED.getNumber()) {
        size += com.google.protobuf.CodedOutputStream
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      size += getUnknownFields().getSerializedSize();
      memoizedSize = size;
      return size;
    }

    @java.lang.Override
    public boolean equals(final java.lang.Object obj) {
      if (obj == this) {
       return true;
      }
      if (!(obj instanceof tech.ydb.proto.topic.YdbTopic.CreateTopicRequest)) {
        return super.equals(obj);
      }
      tech.ydb.proto.topic.YdbTopic.CreateTopicRequest other = (tech.ydb.proto.topic.YdbTopic.CreateTopicRequest) obj;

      if (hasOperationParams() != other.hasOperationParams()) return false;
      if (hasOperationParams()) {
        if (!getOperationParams()
            .equals(other.getOperationParams())) return false;
      }
      if (!getPath()
          .equals(other.getPath())) return false;
      if (hasPartitioningSettings() != other.hasPartitioningSettings()) return false;
      if (hasPartitioningSettings()) {
        if (!getPartitioningSettings()
            .equals(other.getPartitioningSettings())) return false;
      }
      if (hasRetentionPeriod() != other.hasRetentionPeriod()) return false;
      if (hasRetentionPeriod()) {
        if (!getRetentionPeriod()
            .equals(other.getRetentionPeriod())) return false;
      }
      if (getRetentionStorageMb()
          != other.getRetentionStorageMb()) return false;
      if (hasSupportedCodecs() != other.hasSupportedCodecs()) return false;
      if (hasSupportedCodecs()) {
        if (!getSupportedCodecs()
            .equals(other.getSupportedCodecs())) return false;
      }
      if (getPartitionWriteSpeedBytesPerSecond()
          != other.getPartitionWriteSpeedBytesPerSecond()) return false;
      if (getPartitionWriteBurstBytes()
          != other.getPartitionWriteBurstBytes()) return false;
      if (!internalGetAttributes().equals(
          other.internalGetAttributes())) return false;
      if (!getConsumersList()
          .equals(other.getConsumersList())) return false;
      if (meteringMode_ != other.meteringMode_) return false;
      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
      return true;
    }

    @java.lang.Override
    public int hashCode() {
      if (memoizedHashCode != 0) {
        return memoizedHashCode;
      }
      int hash = 41;
      hash = (19 * hash) + getDescriptor().hashCode();
      if (hasOperationParams()) {
        hash = (37 * hash) + OPERATION_PARAMS_FIELD_NUMBER;
        hash = (53 * hash) + getOperationParams().hashCode();
      }
      hash = (37 * hash) + PATH_FIELD_NUMBER;
      hash = (53 * hash) + getPath().hashCode();
      if (hasPartitioningSettings()) {
        hash = (37 * hash) + PARTITIONING_SETTINGS_FIELD_NUMBER;
        hash = (53 * hash) + getPartitioningSettings().hashCode();
      }
      if (hasRetentionPeriod()) {
        hash = (37 * hash) + RETENTION_PERIOD_FIELD_NUMBER;
        hash = (53 * hash) + getRetentionPeriod().hashCode();
      }
      hash = (37 * hash) + RETENTION_STORAGE_MB_FIELD_NUMBER;
      hash = (53 * hash) + com.google.protobuf.Internal.hashLong(
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      if (hasSupportedCodecs()) {
        hash = (37 * hash) + SUPPORTED_CODECS_FIELD_NUMBER;
        hash = (53 * hash) + getSupportedCodecs().hashCode();
      }
      hash = (37 * hash) + PARTITION_WRITE_SPEED_BYTES_PER_SECOND_FIELD_NUMBER;
      hash = (53 * hash) + com.google.protobuf.Internal.hashLong(
          getPartitionWriteSpeedBytesPerSecond());
      hash = (37 * hash) + PARTITION_WRITE_BURST_BYTES_FIELD_NUMBER;
      hash = (53 * hash) + com.google.protobuf.Internal.hashLong(
          getPartitionWriteBurstBytes());
      if (!internalGetAttributes().getMap().isEmpty()) {
        hash = (37 * hash) + ATTRIBUTES_FIELD_NUMBER;
        hash = (53 * hash) + internalGetAttributes().hashCode();
      }
      if (getConsumersCount() > 0) {
        hash = (37 * hash) + CONSUMERS_FIELD_NUMBER;
        hash = (53 * hash) + getConsumersList().hashCode();
      }
      hash = (37 * hash) + METERING_MODE_FIELD_NUMBER;
      hash = (53 * hash) + meteringMode_;
      hash = (29 * hash) + getUnknownFields().hashCode();
      memoizedHashCode = hash;
      return hash;
    }

    public static tech.ydb.proto.topic.YdbTopic.CreateTopicRequest parseFrom(
        java.nio.ByteBuffer data)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data);
    }
    public static tech.ydb.proto.topic.YdbTopic.CreateTopicRequest parseFrom(
        java.nio.ByteBuffer data,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data, extensionRegistry);
    }
    public static tech.ydb.proto.topic.YdbTopic.CreateTopicRequest parseFrom(
        com.google.protobuf.ByteString data)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data);
    }
    public static tech.ydb.proto.topic.YdbTopic.CreateTopicRequest parseFrom(
        com.google.protobuf.ByteString data,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data, extensionRegistry);
    }
    public static tech.ydb.proto.topic.YdbTopic.CreateTopicRequest parseFrom(byte[] data)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data);
    }
    public static tech.ydb.proto.topic.YdbTopic.CreateTopicRequest parseFrom(
        byte[] data,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data, extensionRegistry);
    }
    public static tech.ydb.proto.topic.YdbTopic.CreateTopicRequest parseFrom(java.io.InputStream input)
        throws java.io.IOException {
      return com.google.protobuf.GeneratedMessageV3
          .parseWithIOException(PARSER, input);
    }
    public static tech.ydb.proto.topic.YdbTopic.CreateTopicRequest parseFrom(
        java.io.InputStream input,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws java.io.IOException {
      return com.google.protobuf.GeneratedMessageV3
          .parseWithIOException(PARSER, input, extensionRegistry);
    }

    public static tech.ydb.proto.topic.YdbTopic.CreateTopicRequest parseDelimitedFrom(java.io.InputStream input)
        throws java.io.IOException {
      return com.google.protobuf.GeneratedMessageV3
          .parseDelimitedWithIOException(PARSER, input);
    }

    public static tech.ydb.proto.topic.YdbTopic.CreateTopicRequest parseDelimitedFrom(
        java.io.InputStream input,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws java.io.IOException {
      return com.google.protobuf.GeneratedMessageV3
          .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
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    public static tech.ydb.proto.topic.YdbTopic.CreateTopicRequest parseFrom(
        com.google.protobuf.CodedInputStream input)
        throws java.io.IOException {
      return com.google.protobuf.GeneratedMessageV3
          .parseWithIOException(PARSER, input);
    }
    public static tech.ydb.proto.topic.YdbTopic.CreateTopicRequest parseFrom(
        com.google.protobuf.CodedInputStream input,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws java.io.IOException {
      return com.google.protobuf.GeneratedMessageV3
          .parseWithIOException(PARSER, input, extensionRegistry);
    }

    @java.lang.Override
    public Builder newBuilderForType() { return newBuilder(); }
    public static Builder newBuilder() {
      return DEFAULT_INSTANCE.toBuilder();
    }
    public static Builder newBuilder(tech.ydb.proto.topic.YdbTopic.CreateTopicRequest prototype) {
      return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
    }
    @java.lang.Override
    public Builder toBuilder() {
      return this == DEFAULT_INSTANCE
          ? new Builder() : new Builder().mergeFrom(this);
    }

    @java.lang.Override
    protected Builder newBuilderForType(
        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
      Builder builder = new Builder(parent);
      return builder;
    }
    /**
     * 
     * Create topic request sent from client to server.
     * 
     *
     * Protobuf type {@code Ydb.Topic.CreateTopicRequest}
     */
    public static final class Builder extends
        com.google.protobuf.GeneratedMessageV3.Builder implements
        // @@protoc_insertion_point(builder_implements:Ydb.Topic.CreateTopicRequest)
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      @java.lang.Override
      public Builder mergeFrom(com.google.protobuf.Message other) {
        if (other instanceof tech.ydb.proto.topic.YdbTopic.CreateTopicRequest) {
          return mergeFrom((tech.ydb.proto.topic.YdbTopic.CreateTopicRequest)other);
        } else {
          super.mergeFrom(other);
          return this;
        }
      }

      public Builder mergeFrom(tech.ydb.proto.topic.YdbTopic.CreateTopicRequest other) {
        if (other == tech.ydb.proto.topic.YdbTopic.CreateTopicRequest.getDefaultInstance()) return this;
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        if (other.hasSupportedCodecs()) {
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        if (other.getPartitionWriteSpeedBytesPerSecond() != 0L) {
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              case 18: {
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              case 26: {
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                    getPartitioningSettingsFieldBuilder().getBuilder(),
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              case 90: {
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                  ensureConsumersIsMutable();
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      private tech.ydb.proto.OperationProtos.OperationParams operationParams_;
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       * .Ydb.Operations.OperationParams operation_params = 1;
       * @return The operationParams.
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      /**
       * .Ydb.Operations.OperationParams operation_params = 1;
       */
      public Builder setOperationParams(tech.ydb.proto.OperationProtos.OperationParams value) {
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          }
          operationParams_ = value;
        } else {
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        }
        bitField0_ |= 0x00000001;
        onChanged();
        return this;
      }
      /**
       * .Ydb.Operations.OperationParams operation_params = 1;
       */
      public Builder setOperationParams(
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        } else {
          operationParamsBuilder_.setMessage(builderForValue.build());
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        bitField0_ |= 0x00000001;
        onChanged();
        return this;
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      /**
       * .Ydb.Operations.OperationParams operation_params = 1;
       */
      public Builder mergeOperationParams(tech.ydb.proto.OperationProtos.OperationParams value) {
        if (operationParamsBuilder_ == null) {
          if (((bitField0_ & 0x00000001) != 0) &&
            operationParams_ != null &&
            operationParams_ != tech.ydb.proto.OperationProtos.OperationParams.getDefaultInstance()) {
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        }
        if (operationParams_ != null) {
          bitField0_ |= 0x00000001;
          onChanged();
        }
        return this;
      }
      /**
       * .Ydb.Operations.OperationParams operation_params = 1;
       */
      public Builder clearOperationParams() {
        bitField0_ = (bitField0_ & ~0x00000001);
        operationParams_ = null;
        if (operationParamsBuilder_ != null) {
          operationParamsBuilder_.dispose();
          operationParamsBuilder_ = null;
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        onChanged();
        return this;
      }
      /**
       * .Ydb.Operations.OperationParams operation_params = 1;
       */
      public tech.ydb.proto.OperationProtos.OperationParams.Builder getOperationParamsBuilder() {
        bitField0_ |= 0x00000001;
        onChanged();
        return getOperationParamsFieldBuilder().getBuilder();
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      /**
       * .Ydb.Operations.OperationParams operation_params = 1;
       */
      public tech.ydb.proto.OperationProtos.OperationParamsOrBuilder getOperationParamsOrBuilder() {
        if (operationParamsBuilder_ != null) {
          return operationParamsBuilder_.getMessageOrBuilder();
        } else {
          return operationParams_ == null ?
              tech.ydb.proto.OperationProtos.OperationParams.getDefaultInstance() : operationParams_;
        }
      }
      /**
       * .Ydb.Operations.OperationParams operation_params = 1;
       */
      private com.google.protobuf.SingleFieldBuilderV3<
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          getOperationParamsFieldBuilder() {
        if (operationParamsBuilder_ == null) {
          operationParamsBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
              tech.ydb.proto.OperationProtos.OperationParams, tech.ydb.proto.OperationProtos.OperationParams.Builder, tech.ydb.proto.OperationProtos.OperationParamsOrBuilder>(
                  getOperationParams(),
                  getParentForChildren(),
                  isClean());
          operationParams_ = null;
        }
        return operationParamsBuilder_;
      }

      private java.lang.Object path_ = "";
      /**
       * 
       * Topic path.
       * 
       *
       * string path = 2;
       * @return The path.
       */
      public java.lang.String getPath() {
        java.lang.Object ref = path_;
        if (!(ref instanceof java.lang.String)) {
          com.google.protobuf.ByteString bs =
              (com.google.protobuf.ByteString) ref;
          java.lang.String s = bs.toStringUtf8();
          path_ = s;
          return s;
        } else {
          return (java.lang.String) ref;
        }
      }
      /**
       * 
       * Topic path.
       * 
       *
       * string path = 2;
       * @return The bytes for path.
       */
      public com.google.protobuf.ByteString
          getPathBytes() {
        java.lang.Object ref = path_;
        if (ref instanceof String) {
          com.google.protobuf.ByteString b = 
              com.google.protobuf.ByteString.copyFromUtf8(
                  (java.lang.String) ref);
          path_ = b;
          return b;
        } else {
          return (com.google.protobuf.ByteString) ref;
        }
      }
      /**
       * 
       * Topic path.
       * 
       *
       * string path = 2;
       * @param value The path to set.
       * @return This builder for chaining.
       */
      public Builder setPath(
          java.lang.String value) {
        if (value == null) { throw new NullPointerException(); }
        path_ = value;
        bitField0_ |= 0x00000002;
        onChanged();
        return this;
      }
      /**
       * 
       * Topic path.
       * 
       *
       * string path = 2;
       * @return This builder for chaining.
       */
      public Builder clearPath() {
        path_ = getDefaultInstance().getPath();
        bitField0_ = (bitField0_ & ~0x00000002);
        onChanged();
        return this;
      }
      /**
       * 
       * Topic path.
       * 
       *
       * string path = 2;
       * @param value The bytes for path to set.
       * @return This builder for chaining.
       */
      public Builder setPathBytes(
          com.google.protobuf.ByteString value) {
        if (value == null) { throw new NullPointerException(); }
        checkByteStringIsUtf8(value);
        path_ = value;
        bitField0_ |= 0x00000002;
        onChanged();
        return this;
      }

      private tech.ydb.proto.topic.YdbTopic.PartitioningSettings partitioningSettings_;
      private com.google.protobuf.SingleFieldBuilderV3<
          tech.ydb.proto.topic.YdbTopic.PartitioningSettings, tech.ydb.proto.topic.YdbTopic.PartitioningSettings.Builder, tech.ydb.proto.topic.YdbTopic.PartitioningSettingsOrBuilder> partitioningSettingsBuilder_;
      /**
       * 
       * Settings for partitioning
       * 
       *
       * .Ydb.Topic.PartitioningSettings partitioning_settings = 3;
       * @return Whether the partitioningSettings field is set.
       */
      public boolean hasPartitioningSettings() {
        return ((bitField0_ & 0x00000004) != 0);
      }
      /**
       * 
       * Settings for partitioning
       * 
       *
       * .Ydb.Topic.PartitioningSettings partitioning_settings = 3;
       * @return The partitioningSettings.
       */
      public tech.ydb.proto.topic.YdbTopic.PartitioningSettings getPartitioningSettings() {
        if (partitioningSettingsBuilder_ == null) {
          return partitioningSettings_ == null ? tech.ydb.proto.topic.YdbTopic.PartitioningSettings.getDefaultInstance() : partitioningSettings_;
        } else {
          return partitioningSettingsBuilder_.getMessage();
        }
      }
      /**
       * 
       * Settings for partitioning
       * 
       *
       * .Ydb.Topic.PartitioningSettings partitioning_settings = 3;
       */
      public Builder setPartitioningSettings(tech.ydb.proto.topic.YdbTopic.PartitioningSettings value) {
        if (partitioningSettingsBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          partitioningSettings_ = value;
        } else {
          partitioningSettingsBuilder_.setMessage(value);
        }
        bitField0_ |= 0x00000004;
        onChanged();
        return this;
      }
      /**
       * 
       * Settings for partitioning
       * 
       *
       * .Ydb.Topic.PartitioningSettings partitioning_settings = 3;
       */
      public Builder setPartitioningSettings(
          tech.ydb.proto.topic.YdbTopic.PartitioningSettings.Builder builderForValue) {
        if (partitioningSettingsBuilder_ == null) {
          partitioningSettings_ = builderForValue.build();
        } else {
          partitioningSettingsBuilder_.setMessage(builderForValue.build());
        }
        bitField0_ |= 0x00000004;
        onChanged();
        return this;
      }
      /**
       * 
       * Settings for partitioning
       * 
       *
       * .Ydb.Topic.PartitioningSettings partitioning_settings = 3;
       */
      public Builder mergePartitioningSettings(tech.ydb.proto.topic.YdbTopic.PartitioningSettings value) {
        if (partitioningSettingsBuilder_ == null) {
          if (((bitField0_ & 0x00000004) != 0) &&
            partitioningSettings_ != null &&
            partitioningSettings_ != tech.ydb.proto.topic.YdbTopic.PartitioningSettings.getDefaultInstance()) {
            getPartitioningSettingsBuilder().mergeFrom(value);
          } else {
            partitioningSettings_ = value;
          }
        } else {
          partitioningSettingsBuilder_.mergeFrom(value);
        }
        if (partitioningSettings_ != null) {
          bitField0_ |= 0x00000004;
          onChanged();
        }
        return this;
      }
      /**
       * 
       * Settings for partitioning
       * 
       *
       * .Ydb.Topic.PartitioningSettings partitioning_settings = 3;
       */
      public Builder clearPartitioningSettings() {
        bitField0_ = (bitField0_ & ~0x00000004);
        partitioningSettings_ = null;
        if (partitioningSettingsBuilder_ != null) {
          partitioningSettingsBuilder_.dispose();
          partitioningSettingsBuilder_ = null;
        }
        onChanged();
        return this;
      }
      /**
       * 
       * Settings for partitioning
       * 
       *
       * .Ydb.Topic.PartitioningSettings partitioning_settings = 3;
       */
      public tech.ydb.proto.topic.YdbTopic.PartitioningSettings.Builder getPartitioningSettingsBuilder() {
        bitField0_ |= 0x00000004;
        onChanged();
        return getPartitioningSettingsFieldBuilder().getBuilder();
      }
      /**
       * 
       * Settings for partitioning
       * 
       *
       * .Ydb.Topic.PartitioningSettings partitioning_settings = 3;
       */
      public tech.ydb.proto.topic.YdbTopic.PartitioningSettingsOrBuilder getPartitioningSettingsOrBuilder() {
        if (partitioningSettingsBuilder_ != null) {
          return partitioningSettingsBuilder_.getMessageOrBuilder();
        } else {
          return partitioningSettings_ == null ?
              tech.ydb.proto.topic.YdbTopic.PartitioningSettings.getDefaultInstance() : partitioningSettings_;
        }
      }
      /**
       * 
       * Settings for partitioning
       * 
       *
       * .Ydb.Topic.PartitioningSettings partitioning_settings = 3;
       */
      private com.google.protobuf.SingleFieldBuilderV3<
          tech.ydb.proto.topic.YdbTopic.PartitioningSettings, tech.ydb.proto.topic.YdbTopic.PartitioningSettings.Builder, tech.ydb.proto.topic.YdbTopic.PartitioningSettingsOrBuilder> 
          getPartitioningSettingsFieldBuilder() {
        if (partitioningSettingsBuilder_ == null) {
          partitioningSettingsBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
              tech.ydb.proto.topic.YdbTopic.PartitioningSettings, tech.ydb.proto.topic.YdbTopic.PartitioningSettings.Builder, tech.ydb.proto.topic.YdbTopic.PartitioningSettingsOrBuilder>(
                  getPartitioningSettings(),
                  getParentForChildren(),
                  isClean());
          partitioningSettings_ = null;
        }
        return partitioningSettingsBuilder_;
      }

      private com.google.protobuf.Duration retentionPeriod_;
      private com.google.protobuf.SingleFieldBuilderV3<
          com.google.protobuf.Duration, com.google.protobuf.Duration.Builder, com.google.protobuf.DurationOrBuilder> retentionPeriodBuilder_;
      /**
       * 
       * Retention settings.
       * Currently, only one limit may be set, so other should not be set.
       *
       * How long data in partition should be stored. Must be greater than 0 and less than limit for this database.
       * Default limit - 36 hours.
       * 
       *
       * .google.protobuf.Duration retention_period = 4;
       * @return Whether the retentionPeriod field is set.
       */
      public boolean hasRetentionPeriod() {
        return ((bitField0_ & 0x00000008) != 0);
      }
      /**
       * 
       * Retention settings.
       * Currently, only one limit may be set, so other should not be set.
       *
       * How long data in partition should be stored. Must be greater than 0 and less than limit for this database.
       * Default limit - 36 hours.
       * 
       *
       * .google.protobuf.Duration retention_period = 4;
       * @return The retentionPeriod.
       */
      public com.google.protobuf.Duration getRetentionPeriod() {
        if (retentionPeriodBuilder_ == null) {
          return retentionPeriod_ == null ? com.google.protobuf.Duration.getDefaultInstance() : retentionPeriod_;
        } else {
          return retentionPeriodBuilder_.getMessage();
        }
      }
      /**
       * 
       * Retention settings.
       * Currently, only one limit may be set, so other should not be set.
       *
       * How long data in partition should be stored. Must be greater than 0 and less than limit for this database.
       * Default limit - 36 hours.
       * 
       *
       * .google.protobuf.Duration retention_period = 4;
       */
      public Builder setRetentionPeriod(com.google.protobuf.Duration value) {
        if (retentionPeriodBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          retentionPeriod_ = value;
        } else {
          retentionPeriodBuilder_.setMessage(value);
        }
        bitField0_ |= 0x00000008;
        onChanged();
        return this;
      }
      /**
       * 
       * Retention settings.
       * Currently, only one limit may be set, so other should not be set.
       *
       * How long data in partition should be stored. Must be greater than 0 and less than limit for this database.
       * Default limit - 36 hours.
       * 
       *
       * .google.protobuf.Duration retention_period = 4;
       */
      public Builder setRetentionPeriod(
          com.google.protobuf.Duration.Builder builderForValue) {
        if (retentionPeriodBuilder_ == null) {
          retentionPeriod_ = builderForValue.build();
        } else {
          retentionPeriodBuilder_.setMessage(builderForValue.build());
        }
        bitField0_ |= 0x00000008;
        onChanged();
        return this;
      }
      /**
       * 
       * Retention settings.
       * Currently, only one limit may be set, so other should not be set.
       *
       * How long data in partition should be stored. Must be greater than 0 and less than limit for this database.
       * Default limit - 36 hours.
       * 
       *
       * .google.protobuf.Duration retention_period = 4;
       */
      public Builder mergeRetentionPeriod(com.google.protobuf.Duration value) {
        if (retentionPeriodBuilder_ == null) {
          if (((bitField0_ & 0x00000008) != 0) &&
            retentionPeriod_ != null &&
            retentionPeriod_ != com.google.protobuf.Duration.getDefaultInstance()) {
            getRetentionPeriodBuilder().mergeFrom(value);
          } else {
            retentionPeriod_ = value;
          }
        } else {
          retentionPeriodBuilder_.mergeFrom(value);
        }
        if (retentionPeriod_ != null) {
          bitField0_ |= 0x00000008;
          onChanged();
        }
        return this;
      }
      /**
       * 
       * Retention settings.
       * Currently, only one limit may be set, so other should not be set.
       *
       * How long data in partition should be stored. Must be greater than 0 and less than limit for this database.
       * Default limit - 36 hours.
       * 
       *
       * .google.protobuf.Duration retention_period = 4;
       */
      public Builder clearRetentionPeriod() {
        bitField0_ = (bitField0_ & ~0x00000008);
        retentionPeriod_ = null;
        if (retentionPeriodBuilder_ != null) {
          retentionPeriodBuilder_.dispose();
          retentionPeriodBuilder_ = null;
        }
        onChanged();
        return this;
      }
      /**
       * 
       * Retention settings.
       * Currently, only one limit may be set, so other should not be set.
       *
       * How long data in partition should be stored. Must be greater than 0 and less than limit for this database.
       * Default limit - 36 hours.
       * 
       *
       * .google.protobuf.Duration retention_period = 4;
       */
      public com.google.protobuf.Duration.Builder getRetentionPeriodBuilder() {
        bitField0_ |= 0x00000008;
        onChanged();
        return getRetentionPeriodFieldBuilder().getBuilder();
      }
      /**
       * 
       * Retention settings.
       * Currently, only one limit may be set, so other should not be set.
       *
       * How long data in partition should be stored. Must be greater than 0 and less than limit for this database.
       * Default limit - 36 hours.
       * 
       *
       * .google.protobuf.Duration retention_period = 4;
       */
      public com.google.protobuf.DurationOrBuilder getRetentionPeriodOrBuilder() {
        if (retentionPeriodBuilder_ != null) {
          return retentionPeriodBuilder_.getMessageOrBuilder();
        } else {
          return retentionPeriod_ == null ?
              com.google.protobuf.Duration.getDefaultInstance() : retentionPeriod_;
        }
      }
      /**
       * 
       * Retention settings.
       * Currently, only one limit may be set, so other should not be set.
       *
       * How long data in partition should be stored. Must be greater than 0 and less than limit for this database.
       * Default limit - 36 hours.
       * 
       *
       * .google.protobuf.Duration retention_period = 4;
       */
      private com.google.protobuf.SingleFieldBuilderV3<
          com.google.protobuf.Duration, com.google.protobuf.Duration.Builder, com.google.protobuf.DurationOrBuilder> 
          getRetentionPeriodFieldBuilder() {
        if (retentionPeriodBuilder_ == null) {
          retentionPeriodBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
              com.google.protobuf.Duration, com.google.protobuf.Duration.Builder, com.google.protobuf.DurationOrBuilder>(
                  getRetentionPeriod(),
                  getParentForChildren(),
                  isClean());
          retentionPeriod_ = null;
        }
        return retentionPeriodBuilder_;
      }

      private long retentionStorageMb_ ;
      /**
       * 
       * How much data in partition should be stored. Must be greater than 0 and less than limit for this database.
       * Zero value means infinite limit.
       * 
       *
       * int64 retention_storage_mb = 5 [(.Ydb.value) = ">= 0"];
       * @return The retentionStorageMb.
       */
      @java.lang.Override
      public long getRetentionStorageMb() {
        return retentionStorageMb_;
      }
      /**
       * 
       * How much data in partition should be stored. Must be greater than 0 and less than limit for this database.
       * Zero value means infinite limit.
       * 
       *
       * int64 retention_storage_mb = 5 [(.Ydb.value) = ">= 0"];
       * @param value The retentionStorageMb to set.
       * @return This builder for chaining.
       */
      public Builder setRetentionStorageMb(long value) {

        retentionStorageMb_ = value;
        bitField0_ |= 0x00000010;
        onChanged();
        return this;
      }
      /**
       * 
       * How much data in partition should be stored. Must be greater than 0 and less than limit for this database.
       * Zero value means infinite limit.
       * 
       *
       * int64 retention_storage_mb = 5 [(.Ydb.value) = ">= 0"];
       * @return This builder for chaining.
       */
      public Builder clearRetentionStorageMb() {
        bitField0_ = (bitField0_ & ~0x00000010);
        retentionStorageMb_ = 0L;
        onChanged();
        return this;
      }

      private tech.ydb.proto.topic.YdbTopic.SupportedCodecs supportedCodecs_;
      private com.google.protobuf.SingleFieldBuilderV3<
          tech.ydb.proto.topic.YdbTopic.SupportedCodecs, tech.ydb.proto.topic.YdbTopic.SupportedCodecs.Builder, tech.ydb.proto.topic.YdbTopic.SupportedCodecsOrBuilder> supportedCodecsBuilder_;
      /**
       * 
       * List of allowed codecs for writers.
       * Writes with codec not from this list are forbidden.
       * If empty, codec compatibility check for the topic is disabled.
       * 
       *
       * .Ydb.Topic.SupportedCodecs supported_codecs = 7;
       * @return Whether the supportedCodecs field is set.
       */
      public boolean hasSupportedCodecs() {
        return ((bitField0_ & 0x00000020) != 0);
      }
      /**
       * 
       * List of allowed codecs for writers.
       * Writes with codec not from this list are forbidden.
       * If empty, codec compatibility check for the topic is disabled.
       * 
       *
       * .Ydb.Topic.SupportedCodecs supported_codecs = 7;
       * @return The supportedCodecs.
       */
      public tech.ydb.proto.topic.YdbTopic.SupportedCodecs getSupportedCodecs() {
        if (supportedCodecsBuilder_ == null) {
          return supportedCodecs_ == null ? tech.ydb.proto.topic.YdbTopic.SupportedCodecs.getDefaultInstance() : supportedCodecs_;
        } else {
          return supportedCodecsBuilder_.getMessage();
        }
      }
      /**
       * 
       * List of allowed codecs for writers.
       * Writes with codec not from this list are forbidden.
       * If empty, codec compatibility check for the topic is disabled.
       * 
       *
       * .Ydb.Topic.SupportedCodecs supported_codecs = 7;
       */
      public Builder setSupportedCodecs(tech.ydb.proto.topic.YdbTopic.SupportedCodecs value) {
        if (supportedCodecsBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          supportedCodecs_ = value;
        } else {
          supportedCodecsBuilder_.setMessage(value);
        }
        bitField0_ |= 0x00000020;
        onChanged();
        return this;
      }
      /**
       * 
       * List of allowed codecs for writers.
       * Writes with codec not from this list are forbidden.
       * If empty, codec compatibility check for the topic is disabled.
       * 
       *
       * .Ydb.Topic.SupportedCodecs supported_codecs = 7;
       */
      public Builder setSupportedCodecs(
          tech.ydb.proto.topic.YdbTopic.SupportedCodecs.Builder builderForValue) {
        if (supportedCodecsBuilder_ == null) {
          supportedCodecs_ = builderForValue.build();
        } else {
          supportedCodecsBuilder_.setMessage(builderForValue.build());
        }
        bitField0_ |= 0x00000020;
        onChanged();
        return this;
      }
      /**
       * 
       * List of allowed codecs for writers.
       * Writes with codec not from this list are forbidden.
       * If empty, codec compatibility check for the topic is disabled.
       * 
       *
       * .Ydb.Topic.SupportedCodecs supported_codecs = 7;
       */
      public Builder mergeSupportedCodecs(tech.ydb.proto.topic.YdbTopic.SupportedCodecs value) {
        if (supportedCodecsBuilder_ == null) {
          if (((bitField0_ & 0x00000020) != 0) &&
            supportedCodecs_ != null &&
            supportedCodecs_ != tech.ydb.proto.topic.YdbTopic.SupportedCodecs.getDefaultInstance()) {
            getSupportedCodecsBuilder().mergeFrom(value);
          } else {
            supportedCodecs_ = value;
          }
        } else {
          supportedCodecsBuilder_.mergeFrom(value);
        }
        if (supportedCodecs_ != null) {
          bitField0_ |= 0x00000020;
          onChanged();
        }
        return this;
      }
      /**
       * 
       * List of allowed codecs for writers.
       * Writes with codec not from this list are forbidden.
       * If empty, codec compatibility check for the topic is disabled.
       * 
       *
       * .Ydb.Topic.SupportedCodecs supported_codecs = 7;
       */
      public Builder clearSupportedCodecs() {
        bitField0_ = (bitField0_ & ~0x00000020);
        supportedCodecs_ = null;
        if (supportedCodecsBuilder_ != null) {
          supportedCodecsBuilder_.dispose();
          supportedCodecsBuilder_ = null;
        }
        onChanged();
        return this;
      }
      /**
       * 
       * List of allowed codecs for writers.
       * Writes with codec not from this list are forbidden.
       * If empty, codec compatibility check for the topic is disabled.
       * 
       *
       * .Ydb.Topic.SupportedCodecs supported_codecs = 7;
       */
      public tech.ydb.proto.topic.YdbTopic.SupportedCodecs.Builder getSupportedCodecsBuilder() {
        bitField0_ |= 0x00000020;
        onChanged();
        return getSupportedCodecsFieldBuilder().getBuilder();
      }
      /**
       * 
       * List of allowed codecs for writers.
       * Writes with codec not from this list are forbidden.
       * If empty, codec compatibility check for the topic is disabled.
       * 
       *
       * .Ydb.Topic.SupportedCodecs supported_codecs = 7;
       */
      public tech.ydb.proto.topic.YdbTopic.SupportedCodecsOrBuilder getSupportedCodecsOrBuilder() {
        if (supportedCodecsBuilder_ != null) {
          return supportedCodecsBuilder_.getMessageOrBuilder();
        } else {
          return supportedCodecs_ == null ?
              tech.ydb.proto.topic.YdbTopic.SupportedCodecs.getDefaultInstance() : supportedCodecs_;
        }
      }
      /**
       * 
       * List of allowed codecs for writers.
       * Writes with codec not from this list are forbidden.
       * If empty, codec compatibility check for the topic is disabled.
       * 
       *
       * .Ydb.Topic.SupportedCodecs supported_codecs = 7;
       */
      private com.google.protobuf.SingleFieldBuilderV3<
          tech.ydb.proto.topic.YdbTopic.SupportedCodecs, tech.ydb.proto.topic.YdbTopic.SupportedCodecs.Builder, tech.ydb.proto.topic.YdbTopic.SupportedCodecsOrBuilder> 
          getSupportedCodecsFieldBuilder() {
        if (supportedCodecsBuilder_ == null) {
          supportedCodecsBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
              tech.ydb.proto.topic.YdbTopic.SupportedCodecs, tech.ydb.proto.topic.YdbTopic.SupportedCodecs.Builder, tech.ydb.proto.topic.YdbTopic.SupportedCodecsOrBuilder>(
                  getSupportedCodecs(),
                  getParentForChildren(),
                  isClean());
          supportedCodecs_ = null;
        }
        return supportedCodecsBuilder_;
      }

      private long partitionWriteSpeedBytesPerSecond_ ;
      /**
       * 
       * Partition write speed in bytes per second. Must be less than database limit.
       * Zero value means default limit: 1 MB per second.
       * 
       *
       * int64 partition_write_speed_bytes_per_second = 8 [(.Ydb.value) = ">= 0"];
       * @return The partitionWriteSpeedBytesPerSecond.
       */
      @java.lang.Override
      public long getPartitionWriteSpeedBytesPerSecond() {
        return partitionWriteSpeedBytesPerSecond_;
      }
      /**
       * 
       * Partition write speed in bytes per second. Must be less than database limit.
       * Zero value means default limit: 1 MB per second.
       * 
       *
       * int64 partition_write_speed_bytes_per_second = 8 [(.Ydb.value) = ">= 0"];
       * @param value The partitionWriteSpeedBytesPerSecond to set.
       * @return This builder for chaining.
       */
      public Builder setPartitionWriteSpeedBytesPerSecond(long value) {

        partitionWriteSpeedBytesPerSecond_ = value;
        bitField0_ |= 0x00000040;
        onChanged();
        return this;
      }
      /**
       * 
       * Partition write speed in bytes per second. Must be less than database limit.
       * Zero value means default limit: 1 MB per second.
       * 
       *
       * int64 partition_write_speed_bytes_per_second = 8 [(.Ydb.value) = ">= 0"];
       * @return This builder for chaining.
       */
      public Builder clearPartitionWriteSpeedBytesPerSecond() {
        bitField0_ = (bitField0_ & ~0x00000040);
        partitionWriteSpeedBytesPerSecond_ = 0L;
        onChanged();
        return this;
      }

      private long partitionWriteBurstBytes_ ;
      /**
       * 
       * Burst size for write in partition, in bytes. Must be less than database limit.
       * Zero value means default limit: 1 MB.
       * 
       *
       * int64 partition_write_burst_bytes = 9 [(.Ydb.value) = ">= 0"];
       * @return The partitionWriteBurstBytes.
       */
      @java.lang.Override
      public long getPartitionWriteBurstBytes() {
        return partitionWriteBurstBytes_;
      }
      /**
       * 
       * Burst size for write in partition, in bytes. Must be less than database limit.
       * Zero value means default limit: 1 MB.
       * 
       *
       * int64 partition_write_burst_bytes = 9 [(.Ydb.value) = ">= 0"];
       * @param value The partitionWriteBurstBytes to set.
       * @return This builder for chaining.
       */
      public Builder setPartitionWriteBurstBytes(long value) {

        partitionWriteBurstBytes_ = value;
        bitField0_ |= 0x00000080;
        onChanged();
        return this;
      }
      /**
       * 
       * Burst size for write in partition, in bytes. Must be less than database limit.
       * Zero value means default limit: 1 MB.
       * 
       *
       * int64 partition_write_burst_bytes = 9 [(.Ydb.value) = ">= 0"];
       * @return This builder for chaining.
       */
      public Builder clearPartitionWriteBurstBytes() {
        bitField0_ = (bitField0_ & ~0x00000080);
        partitionWriteBurstBytes_ = 0L;
        onChanged();
        return this;
      }

      private com.google.protobuf.MapField<
          java.lang.String, java.lang.String> attributes_;
      private com.google.protobuf.MapField
          internalGetAttributes() {
        if (attributes_ == null) {
          return com.google.protobuf.MapField.emptyMapField(
              AttributesDefaultEntryHolder.defaultEntry);
        }
        return attributes_;
      }
      private com.google.protobuf.MapField
          internalGetMutableAttributes() {
        if (attributes_ == null) {
          attributes_ = com.google.protobuf.MapField.newMapField(
              AttributesDefaultEntryHolder.defaultEntry);
        }
        if (!attributes_.isMutable()) {
          attributes_ = attributes_.copy();
        }
        bitField0_ |= 0x00000100;
        onChanged();
        return attributes_;
      }
      public int getAttributesCount() {
        return internalGetAttributes().getMap().size();
      }
      /**
       * 
       * User and server attributes of topic. Server attributes starts from "_" and will be validated by server.
       * 
       *
       * map<string, string> attributes = 10;
       */
      @java.lang.Override
      public boolean containsAttributes(
          java.lang.String key) {
        if (key == null) { throw new NullPointerException("map key"); }
        return internalGetAttributes().getMap().containsKey(key);
      }
      /**
       * Use {@link #getAttributesMap()} instead.
       */
      @java.lang.Override
      @java.lang.Deprecated
      public java.util.Map getAttributes() {
        return getAttributesMap();
      }
      /**
       * 
       * User and server attributes of topic. Server attributes starts from "_" and will be validated by server.
       * 
       *
       * map<string, string> attributes = 10;
       */
      @java.lang.Override
      public java.util.Map getAttributesMap() {
        return internalGetAttributes().getMap();
      }
      /**
       * 
       * User and server attributes of topic. Server attributes starts from "_" and will be validated by server.
       * 
       *
       * map<string, string> attributes = 10;
       */
      @java.lang.Override
      public /* nullable */
java.lang.String getAttributesOrDefault(
          java.lang.String key,
          /* nullable */
java.lang.String defaultValue) {
        if (key == null) { throw new NullPointerException("map key"); }
        java.util.Map map =
            internalGetAttributes().getMap();
        return map.containsKey(key) ? map.get(key) : defaultValue;
      }
      /**
       * 
       * User and server attributes of topic. Server attributes starts from "_" and will be validated by server.
       * 
       *
       * map<string, string> attributes = 10;
       */
      @java.lang.Override
      public java.lang.String getAttributesOrThrow(
          java.lang.String key) {
        if (key == null) { throw new NullPointerException("map key"); }
        java.util.Map map =
            internalGetAttributes().getMap();
        if (!map.containsKey(key)) {
          throw new java.lang.IllegalArgumentException();
        }
        return map.get(key);
      }
      public Builder clearAttributes() {
        bitField0_ = (bitField0_ & ~0x00000100);
        internalGetMutableAttributes().getMutableMap()
            .clear();
        return this;
      }
      /**
       * 
       * User and server attributes of topic. Server attributes starts from "_" and will be validated by server.
       * 
       *
       * map<string, string> attributes = 10;
       */
      public Builder removeAttributes(
          java.lang.String key) {
        if (key == null) { throw new NullPointerException("map key"); }
        internalGetMutableAttributes().getMutableMap()
            .remove(key);
        return this;
      }
      /**
       * Use alternate mutation accessors instead.
       */
      @java.lang.Deprecated
      public java.util.Map
          getMutableAttributes() {
        bitField0_ |= 0x00000100;
        return internalGetMutableAttributes().getMutableMap();
      }
      /**
       * 
       * User and server attributes of topic. Server attributes starts from "_" and will be validated by server.
       * 
       *
       * map<string, string> attributes = 10;
       */
      public Builder putAttributes(
          java.lang.String key,
          java.lang.String value) {
        if (key == null) { throw new NullPointerException("map key"); }
        if (value == null) { throw new NullPointerException("map value"); }
        internalGetMutableAttributes().getMutableMap()
            .put(key, value);
        bitField0_ |= 0x00000100;
        return this;
      }
      /**
       * 
       * User and server attributes of topic. Server attributes starts from "_" and will be validated by server.
       * 
       *
       * map<string, string> attributes = 10;
       */
      public Builder putAllAttributes(
          java.util.Map values) {
        internalGetMutableAttributes().getMutableMap()
            .putAll(values);
        bitField0_ |= 0x00000100;
        return this;
      }

      private java.util.List consumers_ =
        java.util.Collections.emptyList();
      private void ensureConsumersIsMutable() {
        if (!((bitField0_ & 0x00000200) != 0)) {
          consumers_ = new java.util.ArrayList(consumers_);
          bitField0_ |= 0x00000200;
         }
      }

      private com.google.protobuf.RepeatedFieldBuilderV3<
          tech.ydb.proto.topic.YdbTopic.Consumer, tech.ydb.proto.topic.YdbTopic.Consumer.Builder, tech.ydb.proto.topic.YdbTopic.ConsumerOrBuilder> consumersBuilder_;

      /**
       * 
       * List of consumers for this topic.
       * 
       *
       * repeated .Ydb.Topic.Consumer consumers = 11 [(.Ydb.size) = { ... }
       */
      public java.util.List getConsumersList() {
        if (consumersBuilder_ == null) {
          return java.util.Collections.unmodifiableList(consumers_);
        } else {
          return consumersBuilder_.getMessageList();
        }
      }
      /**
       * 
       * List of consumers for this topic.
       * 
       *
       * repeated .Ydb.Topic.Consumer consumers = 11 [(.Ydb.size) = { ... }
       */
      public int getConsumersCount() {
        if (consumersBuilder_ == null) {
          return consumers_.size();
        } else {
          return consumersBuilder_.getCount();
        }
      }
      /**
       * 
       * List of consumers for this topic.
       * 
       *
       * repeated .Ydb.Topic.Consumer consumers = 11 [(.Ydb.size) = { ... }
       */
      public tech.ydb.proto.topic.YdbTopic.Consumer getConsumers(int index) {
        if (consumersBuilder_ == null) {
          return consumers_.get(index);
        } else {
          return consumersBuilder_.getMessage(index);
        }
      }
      /**
       * 
       * List of consumers for this topic.
       * 
       *
       * repeated .Ydb.Topic.Consumer consumers = 11 [(.Ydb.size) = { ... }
       */
      public Builder setConsumers(
          int index, tech.ydb.proto.topic.YdbTopic.Consumer value) {
        if (consumersBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          ensureConsumersIsMutable();
          consumers_.set(index, value);
          onChanged();
        } else {
          consumersBuilder_.setMessage(index, value);
        }
        return this;
      }
      /**
       * 
       * List of consumers for this topic.
       * 
       *
       * repeated .Ydb.Topic.Consumer consumers = 11 [(.Ydb.size) = { ... }
       */
      public Builder setConsumers(
          int index, tech.ydb.proto.topic.YdbTopic.Consumer.Builder builderForValue) {
        if (consumersBuilder_ == null) {
          ensureConsumersIsMutable();
          consumers_.set(index, builderForValue.build());
          onChanged();
        } else {
          consumersBuilder_.setMessage(index, builderForValue.build());
        }
        return this;
      }
      /**
       * 
       * List of consumers for this topic.
       * 
       *
       * repeated .Ydb.Topic.Consumer consumers = 11 [(.Ydb.size) = { ... }
       */
      public Builder addConsumers(tech.ydb.proto.topic.YdbTopic.Consumer value) {
        if (consumersBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          ensureConsumersIsMutable();
          consumers_.add(value);
          onChanged();
        } else {
          consumersBuilder_.addMessage(value);
        }
        return this;
      }
      /**
       * 
       * List of consumers for this topic.
       * 
       *
       * repeated .Ydb.Topic.Consumer consumers = 11 [(.Ydb.size) = { ... }
       */
      public Builder addConsumers(
          int index, tech.ydb.proto.topic.YdbTopic.Consumer value) {
        if (consumersBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          ensureConsumersIsMutable();
          consumers_.add(index, value);
          onChanged();
        } else {
          consumersBuilder_.addMessage(index, value);
        }
        return this;
      }
      /**
       * 
       * List of consumers for this topic.
       * 
       *
       * repeated .Ydb.Topic.Consumer consumers = 11 [(.Ydb.size) = { ... }
       */
      public Builder addConsumers(
          tech.ydb.proto.topic.YdbTopic.Consumer.Builder builderForValue) {
        if (consumersBuilder_ == null) {
          ensureConsumersIsMutable();
          consumers_.add(builderForValue.build());
          onChanged();
        } else {
          consumersBuilder_.addMessage(builderForValue.build());
        }
        return this;
      }
      /**
       * 
       * List of consumers for this topic.
       * 
       *
       * repeated .Ydb.Topic.Consumer consumers = 11 [(.Ydb.size) = { ... }
       */
      public Builder addConsumers(
          int index, tech.ydb.proto.topic.YdbTopic.Consumer.Builder builderForValue) {
        if (consumersBuilder_ == null) {
          ensureConsumersIsMutable();
          consumers_.add(index, builderForValue.build());
          onChanged();
        } else {
          consumersBuilder_.addMessage(index, builderForValue.build());
        }
        return this;
      }
      /**
       * 
       * List of consumers for this topic.
       * 
       *
       * repeated .Ydb.Topic.Consumer consumers = 11 [(.Ydb.size) = { ... }
       */
      public Builder addAllConsumers(
          java.lang.Iterable values) {
        if (consumersBuilder_ == null) {
          ensureConsumersIsMutable();
          com.google.protobuf.AbstractMessageLite.Builder.addAll(
              values, consumers_);
          onChanged();
        } else {
          consumersBuilder_.addAllMessages(values);
        }
        return this;
      }
      /**
       * 
       * List of consumers for this topic.
       * 
       *
       * repeated .Ydb.Topic.Consumer consumers = 11 [(.Ydb.size) = { ... }
       */
      public Builder clearConsumers() {
        if (consumersBuilder_ == null) {
          consumers_ = java.util.Collections.emptyList();
          bitField0_ = (bitField0_ & ~0x00000200);
          onChanged();
        } else {
          consumersBuilder_.clear();
        }
        return this;
      }
      /**
       * 
       * List of consumers for this topic.
       * 
       *
       * repeated .Ydb.Topic.Consumer consumers = 11 [(.Ydb.size) = { ... }
       */
      public Builder removeConsumers(int index) {
        if (consumersBuilder_ == null) {
          ensureConsumersIsMutable();
          consumers_.remove(index);
          onChanged();
        } else {
          consumersBuilder_.remove(index);
        }
        return this;
      }
      /**
       * 
       * List of consumers for this topic.
       * 
       *
       * repeated .Ydb.Topic.Consumer consumers = 11 [(.Ydb.size) = { ... }
       */
      public tech.ydb.proto.topic.YdbTopic.Consumer.Builder getConsumersBuilder(
          int index) {
        return getConsumersFieldBuilder().getBuilder(index);
      }
      /**
       * 
       * List of consumers for this topic.
       * 
       *
       * repeated .Ydb.Topic.Consumer consumers = 11 [(.Ydb.size) = { ... }
       */
      public tech.ydb.proto.topic.YdbTopic.ConsumerOrBuilder getConsumersOrBuilder(
          int index) {
        if (consumersBuilder_ == null) {
          return consumers_.get(index);  } else {
          return consumersBuilder_.getMessageOrBuilder(index);
        }
      }
      /**
       * 
       * List of consumers for this topic.
       * 
       *
       * repeated .Ydb.Topic.Consumer consumers = 11 [(.Ydb.size) = { ... }
       */
      public java.util.List 
           getConsumersOrBuilderList() {
        if (consumersBuilder_ != null) {
          return consumersBuilder_.getMessageOrBuilderList();
        } else {
          return java.util.Collections.unmodifiableList(consumers_);
        }
      }
      /**
       * 
       * List of consumers for this topic.
       * 
       *
       * repeated .Ydb.Topic.Consumer consumers = 11 [(.Ydb.size) = { ... }
       */
      public tech.ydb.proto.topic.YdbTopic.Consumer.Builder addConsumersBuilder() {
        return getConsumersFieldBuilder().addBuilder(
            tech.ydb.proto.topic.YdbTopic.Consumer.getDefaultInstance());
      }
      /**
       * 
       * List of consumers for this topic.
       * 
       *
       * repeated .Ydb.Topic.Consumer consumers = 11 [(.Ydb.size) = { ... }
       */
      public tech.ydb.proto.topic.YdbTopic.Consumer.Builder addConsumersBuilder(
          int index) {
        return getConsumersFieldBuilder().addBuilder(
            index, tech.ydb.proto.topic.YdbTopic.Consumer.getDefaultInstance());
      }
      /**
       * 
       * List of consumers for this topic.
       * 
       *
       * repeated .Ydb.Topic.Consumer consumers = 11 [(.Ydb.size) = { ... }
       */
      public java.util.List 
           getConsumersBuilderList() {
        return getConsumersFieldBuilder().getBuilderList();
      }
      private com.google.protobuf.RepeatedFieldBuilderV3<
          tech.ydb.proto.topic.YdbTopic.Consumer, tech.ydb.proto.topic.YdbTopic.Consumer.Builder, tech.ydb.proto.topic.YdbTopic.ConsumerOrBuilder> 
          getConsumersFieldBuilder() {
        if (consumersBuilder_ == null) {
          consumersBuilder_ = new com.google.protobuf.RepeatedFieldBuilderV3<
              tech.ydb.proto.topic.YdbTopic.Consumer, tech.ydb.proto.topic.YdbTopic.Consumer.Builder, tech.ydb.proto.topic.YdbTopic.ConsumerOrBuilder>(
                  consumers_,
                  ((bitField0_ & 0x00000200) != 0),
                  getParentForChildren(),
                  isClean());
          consumers_ = null;
        }
        return consumersBuilder_;
      }

      private int meteringMode_ = 0;
      /**
       * 
       * Metering mode for the topic in a serverless database.
       * 
       *
       * .Ydb.Topic.MeteringMode metering_mode = 12;
       * @return The enum numeric value on the wire for meteringMode.
       */
      @java.lang.Override public int getMeteringModeValue() {
        return meteringMode_;
      }
      /**
       * 
       * Metering mode for the topic in a serverless database.
       * 
       *
       * .Ydb.Topic.MeteringMode metering_mode = 12;
       * @param value The enum numeric value on the wire for meteringMode to set.
       * @return This builder for chaining.
       */
      public Builder setMeteringModeValue(int value) {
        meteringMode_ = value;
        bitField0_ |= 0x00000400;
        onChanged();
        return this;
      }
      /**
       * 
       * Metering mode for the topic in a serverless database.
       * 
       *
       * .Ydb.Topic.MeteringMode metering_mode = 12;
       * @return The meteringMode.
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.MeteringMode getMeteringMode() {
        tech.ydb.proto.topic.YdbTopic.MeteringMode result = tech.ydb.proto.topic.YdbTopic.MeteringMode.forNumber(meteringMode_);
        return result == null ? tech.ydb.proto.topic.YdbTopic.MeteringMode.UNRECOGNIZED : result;
      }
      /**
       * 
       * Metering mode for the topic in a serverless database.
       * 
       *
       * .Ydb.Topic.MeteringMode metering_mode = 12;
       * @param value The meteringMode to set.
       * @return This builder for chaining.
       */
      public Builder setMeteringMode(tech.ydb.proto.topic.YdbTopic.MeteringMode value) {
        if (value == null) {
          throw new NullPointerException();
        }
        bitField0_ |= 0x00000400;
        meteringMode_ = value.getNumber();
        onChanged();
        return this;
      }
      /**
       * 
       * Metering mode for the topic in a serverless database.
       * 
       *
       * .Ydb.Topic.MeteringMode metering_mode = 12;
       * @return This builder for chaining.
       */
      public Builder clearMeteringMode() {
        bitField0_ = (bitField0_ & ~0x00000400);
        meteringMode_ = 0;
        onChanged();
        return this;
      }
      @java.lang.Override
      public final Builder setUnknownFields(
          final com.google.protobuf.UnknownFieldSet unknownFields) {
        return super.setUnknownFields(unknownFields);
      }

      @java.lang.Override
      public final Builder mergeUnknownFields(
          final com.google.protobuf.UnknownFieldSet unknownFields) {
        return super.mergeUnknownFields(unknownFields);
      }


      // @@protoc_insertion_point(builder_scope:Ydb.Topic.CreateTopicRequest)
    }

    // @@protoc_insertion_point(class_scope:Ydb.Topic.CreateTopicRequest)
    private static final tech.ydb.proto.topic.YdbTopic.CreateTopicRequest DEFAULT_INSTANCE;
    static {
      DEFAULT_INSTANCE = new tech.ydb.proto.topic.YdbTopic.CreateTopicRequest();
    }

    public static tech.ydb.proto.topic.YdbTopic.CreateTopicRequest getDefaultInstance() {
      return DEFAULT_INSTANCE;
    }

    private static final com.google.protobuf.Parser
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          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
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        Builder builder = newBuilder();
        try {
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          throw e.setUnfinishedMessage(builder.buildPartial());
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    public static com.google.protobuf.Parser parser() {
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    @java.lang.Override
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      return PARSER;
    }

    @java.lang.Override
    public tech.ydb.proto.topic.YdbTopic.CreateTopicRequest getDefaultInstanceForType() {
      return DEFAULT_INSTANCE;
    }

  }

  public interface CreateTopicResponseOrBuilder extends
      // @@protoc_insertion_point(interface_extends:Ydb.Topic.CreateTopicResponse)
      com.google.protobuf.MessageOrBuilder {

    /**
     * 
     * Result of request will be inside operation.
     * 
     *
     * .Ydb.Operations.Operation operation = 1;
     * @return Whether the operation field is set.
     */
    boolean hasOperation();
    /**
     * 
     * Result of request will be inside operation.
     * 
     *
     * .Ydb.Operations.Operation operation = 1;
     * @return The operation.
     */
    tech.ydb.proto.OperationProtos.Operation getOperation();
    /**
     * 
     * Result of request will be inside operation.
     * 
     *
     * .Ydb.Operations.Operation operation = 1;
     */
    tech.ydb.proto.OperationProtos.OperationOrBuilder getOperationOrBuilder();
  }
  /**
   * 
   * Create topic response sent from server to client.
   * If topic is already exists then response status will be "ALREADY_EXISTS".
   * 
   *
   * Protobuf type {@code Ydb.Topic.CreateTopicResponse}
   */
  public static final class CreateTopicResponse extends
      com.google.protobuf.GeneratedMessageV3 implements
      // @@protoc_insertion_point(message_implements:Ydb.Topic.CreateTopicResponse)
      CreateTopicResponseOrBuilder {
  private static final long serialVersionUID = 0L;
    // Use CreateTopicResponse.newBuilder() to construct.
    private CreateTopicResponse(com.google.protobuf.GeneratedMessageV3.Builder builder) {
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    }
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    @java.lang.Override
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    protected java.lang.Object newInstance(
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      return new CreateTopicResponse();
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    public static final com.google.protobuf.Descriptors.Descriptor
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     * 
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     *
     * .Ydb.Operations.Operation operation = 1;
     * @return Whether the operation field is set.
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     * 
     * Result of request will be inside operation.
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     *
     * .Ydb.Operations.Operation operation = 1;
     */
    @java.lang.Override
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    @java.lang.Override
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      if (obj == this) {
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      if (!(obj instanceof tech.ydb.proto.topic.YdbTopic.CreateTopicResponse)) {
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    @java.lang.Override
    public Builder newBuilderForType() { return newBuilder(); }
    public static Builder newBuilder() {
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    public static Builder newBuilder(tech.ydb.proto.topic.YdbTopic.CreateTopicResponse prototype) {
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    @java.lang.Override
    public Builder toBuilder() {
      return this == DEFAULT_INSTANCE
          ? new Builder() : new Builder().mergeFrom(this);
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    @java.lang.Override
    protected Builder newBuilderForType(
        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
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    /**
     * 
     * Create topic response sent from server to client.
     * If topic is already exists then response status will be "ALREADY_EXISTS".
     * 
     *
     * Protobuf type {@code Ydb.Topic.CreateTopicResponse}
     */
    public static final class Builder extends
        com.google.protobuf.GeneratedMessageV3.Builder implements
        // @@protoc_insertion_point(builder_implements:Ydb.Topic.CreateTopicResponse)
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       * 
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       * 
       *
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          path_ = s;
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      /**
       * 
       * Topic path.
       * 
       *
       * string path = 2;
       * @return The bytes for path.
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      public com.google.protobuf.ByteString
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        java.lang.Object ref = path_;
        if (ref instanceof String) {
          com.google.protobuf.ByteString b = 
              com.google.protobuf.ByteString.copyFromUtf8(
                  (java.lang.String) ref);
          path_ = b;
          return b;
        } else {
          return (com.google.protobuf.ByteString) ref;
        }
      }
      /**
       * 
       * Topic path.
       * 
       *
       * string path = 2;
       * @param value The path to set.
       * @return This builder for chaining.
       */
      public Builder setPath(
          java.lang.String value) {
        if (value == null) { throw new NullPointerException(); }
        path_ = value;
        bitField0_ |= 0x00000002;
        onChanged();
        return this;
      }
      /**
       * 
       * Topic path.
       * 
       *
       * string path = 2;
       * @return This builder for chaining.
       */
      public Builder clearPath() {
        path_ = getDefaultInstance().getPath();
        bitField0_ = (bitField0_ & ~0x00000002);
        onChanged();
        return this;
      }
      /**
       * 
       * Topic path.
       * 
       *
       * string path = 2;
       * @param value The bytes for path to set.
       * @return This builder for chaining.
       */
      public Builder setPathBytes(
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        if (value == null) { throw new NullPointerException(); }
        checkByteStringIsUtf8(value);
        path_ = value;
        bitField0_ |= 0x00000002;
        onChanged();
        return this;
      }

      private boolean includeStats_ ;
      /**
       * 
       * Include topic statistics.
       * 
       *
       * bool include_stats = 3;
       * @return The includeStats.
       */
      @java.lang.Override
      public boolean getIncludeStats() {
        return includeStats_;
      }
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       * 
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       * 
       *
       * bool include_stats = 3;
       * @param value The includeStats to set.
       * @return This builder for chaining.
       */
      public Builder setIncludeStats(boolean value) {

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        return this;
      }
      /**
       * 
       * Include topic statistics.
       * 
       *
       * bool include_stats = 3;
       * @return This builder for chaining.
       */
      public Builder clearIncludeStats() {
        bitField0_ = (bitField0_ & ~0x00000004);
        includeStats_ = false;
        onChanged();
        return this;
      }

      private boolean includeLocation_ ;
      /**
       * 
       * Include partition location.
       * 
       *
       * bool include_location = 4;
       * @return The includeLocation.
       */
      @java.lang.Override
      public boolean getIncludeLocation() {
        return includeLocation_;
      }
      /**
       * 
       * Include partition location.
       * 
       *
       * bool include_location = 4;
       * @param value The includeLocation to set.
       * @return This builder for chaining.
       */
      public Builder setIncludeLocation(boolean value) {

        includeLocation_ = value;
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        return this;
      }
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       * 
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       * 
       *
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       * @return This builder for chaining.
       */
      public Builder clearIncludeLocation() {
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      @java.lang.Override
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      // @@protoc_insertion_point(interface_extends:Ydb.Topic.DescribeTopicResponse)
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    /**
     * 
     * Result of request will be inside operation.
     * 
     *
     * .Ydb.Operations.Operation operation = 1;
     * @return Whether the operation field is set.
     */
    boolean hasOperation();
    /**
     * 
     * Result of request will be inside operation.
     * 
     *
     * .Ydb.Operations.Operation operation = 1;
     * @return The operation.
     */
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    /**
     * 
     * Result of request will be inside operation.
     * 
     *
     * .Ydb.Operations.Operation operation = 1;
     */
    tech.ydb.proto.OperationProtos.OperationOrBuilder getOperationOrBuilder();
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  /**
   * 
   * Describe topic response sent from server to client.
   * If topic is not existed then response status will be "SCHEME_ERROR".
   * 
   *
   * Protobuf type {@code Ydb.Topic.DescribeTopicResponse}
   */
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    protected java.lang.Object newInstance(
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     * 
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     * 
     *
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     * 
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    /**
     * 
     * Describe topic response sent from server to client.
     * If topic is not existed then response status will be "SCHEME_ERROR".
     * 
     *
     * Protobuf type {@code Ydb.Topic.DescribeTopicResponse}
     */
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       * 
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       * 
       * Result of request will be inside operation.
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       * 
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       *
       * .Ydb.Operations.Operation operation = 1;
       */
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       * 
       * Result of request will be inside operation.
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       * 
       * Result of request will be inside operation.
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       * 
       * Result of request will be inside operation.
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       * 
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      // @@protoc_insertion_point(builder_scope:Ydb.Topic.DescribeTopicResponse)
    }

    // @@protoc_insertion_point(class_scope:Ydb.Topic.DescribeTopicResponse)
    private static final tech.ydb.proto.topic.YdbTopic.DescribeTopicResponse DEFAULT_INSTANCE;
    static {
      DEFAULT_INSTANCE = new tech.ydb.proto.topic.YdbTopic.DescribeTopicResponse();
    }

    public static tech.ydb.proto.topic.YdbTopic.DescribeTopicResponse getDefaultInstance() {
      return DEFAULT_INSTANCE;
    }

    private static final com.google.protobuf.Parser
        PARSER = new com.google.protobuf.AbstractParser() {
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          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
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    public static com.google.protobuf.Parser parser() {
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    @java.lang.Override
    public tech.ydb.proto.topic.YdbTopic.DescribeTopicResponse getDefaultInstanceForType() {
      return DEFAULT_INSTANCE;
    }

  }

  public interface DescribeTopicResultOrBuilder extends
      // @@protoc_insertion_point(interface_extends:Ydb.Topic.DescribeTopicResult)
      com.google.protobuf.MessageOrBuilder {

    /**
     * 
     * Description of scheme object.
     * 
     *
     * .Ydb.Scheme.Entry self = 1;
     * @return Whether the self field is set.
     */
    boolean hasSelf();
    /**
     * 
     * Description of scheme object.
     * 
     *
     * .Ydb.Scheme.Entry self = 1;
     * @return The self.
     */
    tech.ydb.proto.scheme.SchemeOperationProtos.Entry getSelf();
    /**
     * 
     * Description of scheme object.
     * 
     *
     * .Ydb.Scheme.Entry self = 1;
     */
    tech.ydb.proto.scheme.SchemeOperationProtos.EntryOrBuilder getSelfOrBuilder();

    /**
     * 
     * Settings for partitioning
     * 
     *
     * .Ydb.Topic.PartitioningSettings partitioning_settings = 2;
     * @return Whether the partitioningSettings field is set.
     */
    boolean hasPartitioningSettings();
    /**
     * 
     * Settings for partitioning
     * 
     *
     * .Ydb.Topic.PartitioningSettings partitioning_settings = 2;
     * @return The partitioningSettings.
     */
    tech.ydb.proto.topic.YdbTopic.PartitioningSettings getPartitioningSettings();
    /**
     * 
     * Settings for partitioning
     * 
     *
     * .Ydb.Topic.PartitioningSettings partitioning_settings = 2;
     */
    tech.ydb.proto.topic.YdbTopic.PartitioningSettingsOrBuilder getPartitioningSettingsOrBuilder();

    /**
     * 
     * Partitions description.
     * 
     *
     * repeated .Ydb.Topic.DescribeTopicResult.PartitionInfo partitions = 3;
     */
    java.util.List 
        getPartitionsList();
    /**
     * 
     * Partitions description.
     * 
     *
     * repeated .Ydb.Topic.DescribeTopicResult.PartitionInfo partitions = 3;
     */
    tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo getPartitions(int index);
    /**
     * 
     * Partitions description.
     * 
     *
     * repeated .Ydb.Topic.DescribeTopicResult.PartitionInfo partitions = 3;
     */
    int getPartitionsCount();
    /**
     * 
     * Partitions description.
     * 
     *
     * repeated .Ydb.Topic.DescribeTopicResult.PartitionInfo partitions = 3;
     */
    java.util.List 
        getPartitionsOrBuilderList();
    /**
     * 
     * Partitions description.
     * 
     *
     * repeated .Ydb.Topic.DescribeTopicResult.PartitionInfo partitions = 3;
     */
    tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfoOrBuilder getPartitionsOrBuilder(
        int index);

    /**
     * 
     * Retention settings.
     * Currently, only one limit may be set, so other should not be set.
     *
     * How long data in partition should be stored.
     * 
     *
     * .google.protobuf.Duration retention_period = 4;
     * @return Whether the retentionPeriod field is set.
     */
    boolean hasRetentionPeriod();
    /**
     * 
     * Retention settings.
     * Currently, only one limit may be set, so other should not be set.
     *
     * How long data in partition should be stored.
     * 
     *
     * .google.protobuf.Duration retention_period = 4;
     * @return The retentionPeriod.
     */
    com.google.protobuf.Duration getRetentionPeriod();
    /**
     * 
     * Retention settings.
     * Currently, only one limit may be set, so other should not be set.
     *
     * How long data in partition should be stored.
     * 
     *
     * .google.protobuf.Duration retention_period = 4;
     */
    com.google.protobuf.DurationOrBuilder getRetentionPeriodOrBuilder();

    /**
     * 
     * How much data in partition should be stored.
     * Zero value means infinite limit.
     * 
     *
     * int64 retention_storage_mb = 5;
     * @return The retentionStorageMb.
     */
    long getRetentionStorageMb();

    /**
     * 
     * List of allowed codecs for writers.
     * Writes with codec not from this list are forbidden.
     * If empty, codec compatibility check for the topic is disabled.
     * 
     *
     * .Ydb.Topic.SupportedCodecs supported_codecs = 7;
     * @return Whether the supportedCodecs field is set.
     */
    boolean hasSupportedCodecs();
    /**
     * 
     * List of allowed codecs for writers.
     * Writes with codec not from this list are forbidden.
     * If empty, codec compatibility check for the topic is disabled.
     * 
     *
     * .Ydb.Topic.SupportedCodecs supported_codecs = 7;
     * @return The supportedCodecs.
     */
    tech.ydb.proto.topic.YdbTopic.SupportedCodecs getSupportedCodecs();
    /**
     * 
     * List of allowed codecs for writers.
     * Writes with codec not from this list are forbidden.
     * If empty, codec compatibility check for the topic is disabled.
     * 
     *
     * .Ydb.Topic.SupportedCodecs supported_codecs = 7;
     */
    tech.ydb.proto.topic.YdbTopic.SupportedCodecsOrBuilder getSupportedCodecsOrBuilder();

    /**
     * 
     * Partition write speed in bytes per second.
     * Zero value means default limit: 1 MB per second.
     * 
     *
     * int64 partition_write_speed_bytes_per_second = 8;
     * @return The partitionWriteSpeedBytesPerSecond.
     */
    long getPartitionWriteSpeedBytesPerSecond();

    /**
     * int64 partition_total_read_speed_bytes_per_second = 14;
     * @return The partitionTotalReadSpeedBytesPerSecond.
     */
    long getPartitionTotalReadSpeedBytesPerSecond();

    /**
     * int64 partition_consumer_read_speed_bytes_per_second = 15;
     * @return The partitionConsumerReadSpeedBytesPerSecond.
     */
    long getPartitionConsumerReadSpeedBytesPerSecond();

    /**
     * 
     * Burst size for write in partition, in bytes.
     * Zero value means default limit: 1 MB.
     * 
     *
     * int64 partition_write_burst_bytes = 9;
     * @return The partitionWriteBurstBytes.
     */
    long getPartitionWriteBurstBytes();

    /**
     * 
     * User and server attributes of topic. Server attributes starts from "_" and will be validated by server.
     * 
     *
     * map<string, string> attributes = 10;
     */
    int getAttributesCount();
    /**
     * 
     * User and server attributes of topic. Server attributes starts from "_" and will be validated by server.
     * 
     *
     * map<string, string> attributes = 10;
     */
    boolean containsAttributes(
        java.lang.String key);
    /**
     * Use {@link #getAttributesMap()} instead.
     */
    @java.lang.Deprecated
    java.util.Map
    getAttributes();
    /**
     * 
     * User and server attributes of topic. Server attributes starts from "_" and will be validated by server.
     * 
     *
     * map<string, string> attributes = 10;
     */
    java.util.Map
    getAttributesMap();
    /**
     * 
     * User and server attributes of topic. Server attributes starts from "_" and will be validated by server.
     * 
     *
     * map<string, string> attributes = 10;
     */
    /* nullable */
java.lang.String getAttributesOrDefault(
        java.lang.String key,
        /* nullable */
java.lang.String defaultValue);
    /**
     * 
     * User and server attributes of topic. Server attributes starts from "_" and will be validated by server.
     * 
     *
     * map<string, string> attributes = 10;
     */
    java.lang.String getAttributesOrThrow(
        java.lang.String key);

    /**
     * 
     * List of consumers for this topic.
     * 
     *
     * repeated .Ydb.Topic.Consumer consumers = 11;
     */
    java.util.List 
        getConsumersList();
    /**
     * 
     * List of consumers for this topic.
     * 
     *
     * repeated .Ydb.Topic.Consumer consumers = 11;
     */
    tech.ydb.proto.topic.YdbTopic.Consumer getConsumers(int index);
    /**
     * 
     * List of consumers for this topic.
     * 
     *
     * repeated .Ydb.Topic.Consumer consumers = 11;
     */
    int getConsumersCount();
    /**
     * 
     * List of consumers for this topic.
     * 
     *
     * repeated .Ydb.Topic.Consumer consumers = 11;
     */
    java.util.List 
        getConsumersOrBuilderList();
    /**
     * 
     * List of consumers for this topic.
     * 
     *
     * repeated .Ydb.Topic.Consumer consumers = 11;
     */
    tech.ydb.proto.topic.YdbTopic.ConsumerOrBuilder getConsumersOrBuilder(
        int index);

    /**
     * 
     * Metering settings.
     * 
     *
     * .Ydb.Topic.MeteringMode metering_mode = 12;
     * @return The enum numeric value on the wire for meteringMode.
     */
    int getMeteringModeValue();
    /**
     * 
     * Metering settings.
     * 
     *
     * .Ydb.Topic.MeteringMode metering_mode = 12;
     * @return The meteringMode.
     */
    tech.ydb.proto.topic.YdbTopic.MeteringMode getMeteringMode();

    /**
     * 
     * Statistics of topic.
     * 
     *
     * .Ydb.Topic.DescribeTopicResult.TopicStats topic_stats = 13;
     * @return Whether the topicStats field is set.
     */
    boolean hasTopicStats();
    /**
     * 
     * Statistics of topic.
     * 
     *
     * .Ydb.Topic.DescribeTopicResult.TopicStats topic_stats = 13;
     * @return The topicStats.
     */
    tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.TopicStats getTopicStats();
    /**
     * 
     * Statistics of topic.
     * 
     *
     * .Ydb.Topic.DescribeTopicResult.TopicStats topic_stats = 13;
     */
    tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.TopicStatsOrBuilder getTopicStatsOrBuilder();
  }
  /**
   * 
   * Describe topic result message that will be inside DescribeTopicResponse.operation.
   * 
   *
   * Protobuf type {@code Ydb.Topic.DescribeTopicResult}
   */
  public static final class DescribeTopicResult extends
      com.google.protobuf.GeneratedMessageV3 implements
      // @@protoc_insertion_point(message_implements:Ydb.Topic.DescribeTopicResult)
      DescribeTopicResultOrBuilder {
  private static final long serialVersionUID = 0L;
    // Use DescribeTopicResult.newBuilder() to construct.
    private DescribeTopicResult(com.google.protobuf.GeneratedMessageV3.Builder builder) {
      super(builder);
    }
    private DescribeTopicResult() {
      partitions_ = java.util.Collections.emptyList();
      consumers_ = java.util.Collections.emptyList();
      meteringMode_ = 0;
    }

    @java.lang.Override
    @SuppressWarnings({"unused"})
    protected java.lang.Object newInstance(
        UnusedPrivateParameter unused) {
      return new DescribeTopicResult();
    }

    public static final com.google.protobuf.Descriptors.Descriptor
        getDescriptor() {
      return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_DescribeTopicResult_descriptor;
    }

    @SuppressWarnings({"rawtypes"})
    @java.lang.Override
    protected com.google.protobuf.MapField internalGetMapField(
        int number) {
      switch (number) {
        case 10:
          return internalGetAttributes();
        default:
          throw new RuntimeException(
              "Invalid map field number: " + number);
      }
    }
    @java.lang.Override
    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
        internalGetFieldAccessorTable() {
      return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_DescribeTopicResult_fieldAccessorTable
          .ensureFieldAccessorsInitialized(
              tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.class, tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.Builder.class);
    }

    public interface PartitionInfoOrBuilder extends
        // @@protoc_insertion_point(interface_extends:Ydb.Topic.DescribeTopicResult.PartitionInfo)
        com.google.protobuf.MessageOrBuilder {

      /**
       * 
       * Partition identifier.
       * 
       *
       * int64 partition_id = 1;
       * @return The partitionId.
       */
      long getPartitionId();

      /**
       * 
       * Is partition open for write.
       * 
       *
       * bool active = 2;
       * @return The active.
       */
      boolean getActive();

      /**
       * 
       * Ids of partitions which was formed when this partition was split or merged.
       * 
       *
       * repeated int64 child_partition_ids = 3;
       * @return A list containing the childPartitionIds.
       */
      java.util.List getChildPartitionIdsList();
      /**
       * 
       * Ids of partitions which was formed when this partition was split or merged.
       * 
       *
       * repeated int64 child_partition_ids = 3;
       * @return The count of childPartitionIds.
       */
      int getChildPartitionIdsCount();
      /**
       * 
       * Ids of partitions which was formed when this partition was split or merged.
       * 
       *
       * repeated int64 child_partition_ids = 3;
       * @param index The index of the element to return.
       * @return The childPartitionIds at the given index.
       */
      long getChildPartitionIds(int index);

      /**
       * 
       * Ids of partitions from which this partition was formed by split or merge.
       * 
       *
       * repeated int64 parent_partition_ids = 4;
       * @return A list containing the parentPartitionIds.
       */
      java.util.List getParentPartitionIdsList();
      /**
       * 
       * Ids of partitions from which this partition was formed by split or merge.
       * 
       *
       * repeated int64 parent_partition_ids = 4;
       * @return The count of parentPartitionIds.
       */
      int getParentPartitionIdsCount();
      /**
       * 
       * Ids of partitions from which this partition was formed by split or merge.
       * 
       *
       * repeated int64 parent_partition_ids = 4;
       * @param index The index of the element to return.
       * @return The parentPartitionIds at the given index.
       */
      long getParentPartitionIds(int index);

      /**
       * 
       * Stats for partition, filled only when include_stats in request is true.
       * 
       *
       * .Ydb.Topic.PartitionStats partition_stats = 5;
       * @return Whether the partitionStats field is set.
       */
      boolean hasPartitionStats();
      /**
       * 
       * Stats for partition, filled only when include_stats in request is true.
       * 
       *
       * .Ydb.Topic.PartitionStats partition_stats = 5;
       * @return The partitionStats.
       */
      tech.ydb.proto.topic.YdbTopic.PartitionStats getPartitionStats();
      /**
       * 
       * Stats for partition, filled only when include_stats in request is true.
       * 
       *
       * .Ydb.Topic.PartitionStats partition_stats = 5;
       */
      tech.ydb.proto.topic.YdbTopic.PartitionStatsOrBuilder getPartitionStatsOrBuilder();

      /**
       * 
       * Partition location, filled only when include_location in request is true.
       * 
       *
       * .Ydb.Topic.PartitionLocation partition_location = 6;
       * @return Whether the partitionLocation field is set.
       */
      boolean hasPartitionLocation();
      /**
       * 
       * Partition location, filled only when include_location in request is true.
       * 
       *
       * .Ydb.Topic.PartitionLocation partition_location = 6;
       * @return The partitionLocation.
       */
      tech.ydb.proto.topic.YdbTopic.PartitionLocation getPartitionLocation();
      /**
       * 
       * Partition location, filled only when include_location in request is true.
       * 
       *
       * .Ydb.Topic.PartitionLocation partition_location = 6;
       */
      tech.ydb.proto.topic.YdbTopic.PartitionLocationOrBuilder getPartitionLocationOrBuilder();
    }
    /**
     * Protobuf type {@code Ydb.Topic.DescribeTopicResult.PartitionInfo}
     */
    public static final class PartitionInfo extends
        com.google.protobuf.GeneratedMessageV3 implements
        // @@protoc_insertion_point(message_implements:Ydb.Topic.DescribeTopicResult.PartitionInfo)
        PartitionInfoOrBuilder {
    private static final long serialVersionUID = 0L;
      // Use PartitionInfo.newBuilder() to construct.
      private PartitionInfo(com.google.protobuf.GeneratedMessageV3.Builder builder) {
        super(builder);
      }
      private PartitionInfo() {
        childPartitionIds_ = emptyLongList();
        parentPartitionIds_ = emptyLongList();
      }

      @java.lang.Override
      @SuppressWarnings({"unused"})
      protected java.lang.Object newInstance(
          UnusedPrivateParameter unused) {
        return new PartitionInfo();
      }

      public static final com.google.protobuf.Descriptors.Descriptor
          getDescriptor() {
        return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_DescribeTopicResult_PartitionInfo_descriptor;
      }

      @java.lang.Override
      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
          internalGetFieldAccessorTable() {
        return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_DescribeTopicResult_PartitionInfo_fieldAccessorTable
            .ensureFieldAccessorsInitialized(
                tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo.class, tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo.Builder.class);
      }

      private int bitField0_;
      public static final int PARTITION_ID_FIELD_NUMBER = 1;
      private long partitionId_ = 0L;
      /**
       * 
       * Partition identifier.
       * 
       *
       * int64 partition_id = 1;
       * @return The partitionId.
       */
      @java.lang.Override
      public long getPartitionId() {
        return partitionId_;
      }

      public static final int ACTIVE_FIELD_NUMBER = 2;
      private boolean active_ = false;
      /**
       * 
       * Is partition open for write.
       * 
       *
       * bool active = 2;
       * @return The active.
       */
      @java.lang.Override
      public boolean getActive() {
        return active_;
      }

      public static final int CHILD_PARTITION_IDS_FIELD_NUMBER = 3;
      @SuppressWarnings("serial")
      private com.google.protobuf.Internal.LongList childPartitionIds_ =
          emptyLongList();
      /**
       * 
       * Ids of partitions which was formed when this partition was split or merged.
       * 
       *
       * repeated int64 child_partition_ids = 3;
       * @return A list containing the childPartitionIds.
       */
      @java.lang.Override
      public java.util.List
          getChildPartitionIdsList() {
        return childPartitionIds_;
      }
      /**
       * 
       * Ids of partitions which was formed when this partition was split or merged.
       * 
       *
       * repeated int64 child_partition_ids = 3;
       * @return The count of childPartitionIds.
       */
      public int getChildPartitionIdsCount() {
        return childPartitionIds_.size();
      }
      /**
       * 
       * Ids of partitions which was formed when this partition was split or merged.
       * 
       *
       * repeated int64 child_partition_ids = 3;
       * @param index The index of the element to return.
       * @return The childPartitionIds at the given index.
       */
      public long getChildPartitionIds(int index) {
        return childPartitionIds_.getLong(index);
      }
      private int childPartitionIdsMemoizedSerializedSize = -1;

      public static final int PARENT_PARTITION_IDS_FIELD_NUMBER = 4;
      @SuppressWarnings("serial")
      private com.google.protobuf.Internal.LongList parentPartitionIds_ =
          emptyLongList();
      /**
       * 
       * Ids of partitions from which this partition was formed by split or merge.
       * 
       *
       * repeated int64 parent_partition_ids = 4;
       * @return A list containing the parentPartitionIds.
       */
      @java.lang.Override
      public java.util.List
          getParentPartitionIdsList() {
        return parentPartitionIds_;
      }
      /**
       * 
       * Ids of partitions from which this partition was formed by split or merge.
       * 
       *
       * repeated int64 parent_partition_ids = 4;
       * @return The count of parentPartitionIds.
       */
      public int getParentPartitionIdsCount() {
        return parentPartitionIds_.size();
      }
      /**
       * 
       * Ids of partitions from which this partition was formed by split or merge.
       * 
       *
       * repeated int64 parent_partition_ids = 4;
       * @param index The index of the element to return.
       * @return The parentPartitionIds at the given index.
       */
      public long getParentPartitionIds(int index) {
        return parentPartitionIds_.getLong(index);
      }
      private int parentPartitionIdsMemoizedSerializedSize = -1;

      public static final int PARTITION_STATS_FIELD_NUMBER = 5;
      private tech.ydb.proto.topic.YdbTopic.PartitionStats partitionStats_;
      /**
       * 
       * Stats for partition, filled only when include_stats in request is true.
       * 
       *
       * .Ydb.Topic.PartitionStats partition_stats = 5;
       * @return Whether the partitionStats field is set.
       */
      @java.lang.Override
      public boolean hasPartitionStats() {
        return ((bitField0_ & 0x00000001) != 0);
      }
      /**
       * 
       * Stats for partition, filled only when include_stats in request is true.
       * 
       *
       * .Ydb.Topic.PartitionStats partition_stats = 5;
       * @return The partitionStats.
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.PartitionStats getPartitionStats() {
        return partitionStats_ == null ? tech.ydb.proto.topic.YdbTopic.PartitionStats.getDefaultInstance() : partitionStats_;
      }
      /**
       * 
       * Stats for partition, filled only when include_stats in request is true.
       * 
       *
       * .Ydb.Topic.PartitionStats partition_stats = 5;
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.PartitionStatsOrBuilder getPartitionStatsOrBuilder() {
        return partitionStats_ == null ? tech.ydb.proto.topic.YdbTopic.PartitionStats.getDefaultInstance() : partitionStats_;
      }

      public static final int PARTITION_LOCATION_FIELD_NUMBER = 6;
      private tech.ydb.proto.topic.YdbTopic.PartitionLocation partitionLocation_;
      /**
       * 
       * Partition location, filled only when include_location in request is true.
       * 
       *
       * .Ydb.Topic.PartitionLocation partition_location = 6;
       * @return Whether the partitionLocation field is set.
       */
      @java.lang.Override
      public boolean hasPartitionLocation() {
        return ((bitField0_ & 0x00000002) != 0);
      }
      /**
       * 
       * Partition location, filled only when include_location in request is true.
       * 
       *
       * .Ydb.Topic.PartitionLocation partition_location = 6;
       * @return The partitionLocation.
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.PartitionLocation getPartitionLocation() {
        return partitionLocation_ == null ? tech.ydb.proto.topic.YdbTopic.PartitionLocation.getDefaultInstance() : partitionLocation_;
      }
      /**
       * 
       * Partition location, filled only when include_location in request is true.
       * 
       *
       * .Ydb.Topic.PartitionLocation partition_location = 6;
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.PartitionLocationOrBuilder getPartitionLocationOrBuilder() {
        return partitionLocation_ == null ? tech.ydb.proto.topic.YdbTopic.PartitionLocation.getDefaultInstance() : partitionLocation_;
      }

      private byte memoizedIsInitialized = -1;
      @java.lang.Override
      public final boolean isInitialized() {
        byte isInitialized = memoizedIsInitialized;
        if (isInitialized == 1) return true;
        if (isInitialized == 0) return false;

        memoizedIsInitialized = 1;
        return true;
      }

      @java.lang.Override
      public void writeTo(com.google.protobuf.CodedOutputStream output)
                          throws java.io.IOException {
        getSerializedSize();
        if (partitionId_ != 0L) {
          output.writeInt64(1, partitionId_);
        }
        if (active_ != false) {
          output.writeBool(2, active_);
        }
        if (getChildPartitionIdsList().size() > 0) {
          output.writeUInt32NoTag(26);
          output.writeUInt32NoTag(childPartitionIdsMemoizedSerializedSize);
        }
        for (int i = 0; i < childPartitionIds_.size(); i++) {
          output.writeInt64NoTag(childPartitionIds_.getLong(i));
        }
        if (getParentPartitionIdsList().size() > 0) {
          output.writeUInt32NoTag(34);
          output.writeUInt32NoTag(parentPartitionIdsMemoizedSerializedSize);
        }
        for (int i = 0; i < parentPartitionIds_.size(); i++) {
          output.writeInt64NoTag(parentPartitionIds_.getLong(i));
        }
        if (((bitField0_ & 0x00000001) != 0)) {
          output.writeMessage(5, getPartitionStats());
        }
        if (((bitField0_ & 0x00000002) != 0)) {
          output.writeMessage(6, getPartitionLocation());
        }
        getUnknownFields().writeTo(output);
      }

      @java.lang.Override
      public int getSerializedSize() {
        int size = memoizedSize;
        if (size != -1) return size;

        size = 0;
        if (partitionId_ != 0L) {
          size += com.google.protobuf.CodedOutputStream
            .computeInt64Size(1, partitionId_);
        }
        if (active_ != false) {
          size += com.google.protobuf.CodedOutputStream
            .computeBoolSize(2, active_);
        }
        {
          int dataSize = 0;
          for (int i = 0; i < childPartitionIds_.size(); i++) {
            dataSize += com.google.protobuf.CodedOutputStream
              .computeInt64SizeNoTag(childPartitionIds_.getLong(i));
          }
          size += dataSize;
          if (!getChildPartitionIdsList().isEmpty()) {
            size += 1;
            size += com.google.protobuf.CodedOutputStream
                .computeInt32SizeNoTag(dataSize);
          }
          childPartitionIdsMemoizedSerializedSize = dataSize;
        }
        {
          int dataSize = 0;
          for (int i = 0; i < parentPartitionIds_.size(); i++) {
            dataSize += com.google.protobuf.CodedOutputStream
              .computeInt64SizeNoTag(parentPartitionIds_.getLong(i));
          }
          size += dataSize;
          if (!getParentPartitionIdsList().isEmpty()) {
            size += 1;
            size += com.google.protobuf.CodedOutputStream
                .computeInt32SizeNoTag(dataSize);
          }
          parentPartitionIdsMemoizedSerializedSize = dataSize;
        }
        if (((bitField0_ & 0x00000001) != 0)) {
          size += com.google.protobuf.CodedOutputStream
            .computeMessageSize(5, getPartitionStats());
        }
        if (((bitField0_ & 0x00000002) != 0)) {
          size += com.google.protobuf.CodedOutputStream
            .computeMessageSize(6, getPartitionLocation());
        }
        size += getUnknownFields().getSerializedSize();
        memoizedSize = size;
        return size;
      }

      @java.lang.Override
      public boolean equals(final java.lang.Object obj) {
        if (obj == this) {
         return true;
        }
        if (!(obj instanceof tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo)) {
          return super.equals(obj);
        }
        tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo other = (tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo) obj;

        if (getPartitionId()
            != other.getPartitionId()) return false;
        if (getActive()
            != other.getActive()) return false;
        if (!getChildPartitionIdsList()
            .equals(other.getChildPartitionIdsList())) return false;
        if (!getParentPartitionIdsList()
            .equals(other.getParentPartitionIdsList())) return false;
        if (hasPartitionStats() != other.hasPartitionStats()) return false;
        if (hasPartitionStats()) {
          if (!getPartitionStats()
              .equals(other.getPartitionStats())) return false;
        }
        if (hasPartitionLocation() != other.hasPartitionLocation()) return false;
        if (hasPartitionLocation()) {
          if (!getPartitionLocation()
              .equals(other.getPartitionLocation())) return false;
        }
        if (!getUnknownFields().equals(other.getUnknownFields())) return false;
        return true;
      }

      @java.lang.Override
      public int hashCode() {
        if (memoizedHashCode != 0) {
          return memoizedHashCode;
        }
        int hash = 41;
        hash = (19 * hash) + getDescriptor().hashCode();
        hash = (37 * hash) + PARTITION_ID_FIELD_NUMBER;
        hash = (53 * hash) + com.google.protobuf.Internal.hashLong(
            getPartitionId());
        hash = (37 * hash) + ACTIVE_FIELD_NUMBER;
        hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(
            getActive());
        if (getChildPartitionIdsCount() > 0) {
          hash = (37 * hash) + CHILD_PARTITION_IDS_FIELD_NUMBER;
          hash = (53 * hash) + getChildPartitionIdsList().hashCode();
        }
        if (getParentPartitionIdsCount() > 0) {
          hash = (37 * hash) + PARENT_PARTITION_IDS_FIELD_NUMBER;
          hash = (53 * hash) + getParentPartitionIdsList().hashCode();
        }
        if (hasPartitionStats()) {
          hash = (37 * hash) + PARTITION_STATS_FIELD_NUMBER;
          hash = (53 * hash) + getPartitionStats().hashCode();
        }
        if (hasPartitionLocation()) {
          hash = (37 * hash) + PARTITION_LOCATION_FIELD_NUMBER;
          hash = (53 * hash) + getPartitionLocation().hashCode();
        }
        hash = (29 * hash) + getUnknownFields().hashCode();
        memoizedHashCode = hash;
        return hash;
      }

      public static tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo parseFrom(
          java.nio.ByteBuffer data)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data);
      }
      public static tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo parseFrom(
          java.nio.ByteBuffer data,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data, extensionRegistry);
      }
      public static tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo parseFrom(
          com.google.protobuf.ByteString data)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data);
      }
      public static tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo parseFrom(
          com.google.protobuf.ByteString data,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data, extensionRegistry);
      }
      public static tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo parseFrom(byte[] data)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data);
      }
      public static tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo parseFrom(
          byte[] data,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data, extensionRegistry);
      }
      public static tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo parseFrom(java.io.InputStream input)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseWithIOException(PARSER, input);
      }
      public static tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo parseFrom(
          java.io.InputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseWithIOException(PARSER, input, extensionRegistry);
      }

      public static tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo parseDelimitedFrom(java.io.InputStream input)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseDelimitedWithIOException(PARSER, input);
      }

      public static tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo parseDelimitedFrom(
          java.io.InputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
      }
      public static tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo parseFrom(
          com.google.protobuf.CodedInputStream input)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseWithIOException(PARSER, input);
      }
      public static tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo parseFrom(
          com.google.protobuf.CodedInputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3
            .parseWithIOException(PARSER, input, extensionRegistry);
      }

      @java.lang.Override
      public Builder newBuilderForType() { return newBuilder(); }
      public static Builder newBuilder() {
        return DEFAULT_INSTANCE.toBuilder();
      }
      public static Builder newBuilder(tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo prototype) {
        return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
      }
      @java.lang.Override
      public Builder toBuilder() {
        return this == DEFAULT_INSTANCE
            ? new Builder() : new Builder().mergeFrom(this);
      }

      @java.lang.Override
      protected Builder newBuilderForType(
          com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
        Builder builder = new Builder(parent);
        return builder;
      }
      /**
       * Protobuf type {@code Ydb.Topic.DescribeTopicResult.PartitionInfo}
       */
      public static final class Builder extends
          com.google.protobuf.GeneratedMessageV3.Builder implements
          // @@protoc_insertion_point(builder_implements:Ydb.Topic.DescribeTopicResult.PartitionInfo)
          tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfoOrBuilder {
        public static final com.google.protobuf.Descriptors.Descriptor
            getDescriptor() {
          return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_DescribeTopicResult_PartitionInfo_descriptor;
        }

        @java.lang.Override
        protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
            internalGetFieldAccessorTable() {
          return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_DescribeTopicResult_PartitionInfo_fieldAccessorTable
              .ensureFieldAccessorsInitialized(
                  tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo.class, tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo.Builder.class);
        }

        // Construct using tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo.newBuilder()
        private Builder() {
          maybeForceBuilderInitialization();
        }

        private Builder(
            com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
          super(parent);
          maybeForceBuilderInitialization();
        }
        private void maybeForceBuilderInitialization() {
          if (com.google.protobuf.GeneratedMessageV3
                  .alwaysUseFieldBuilders) {
            getPartitionStatsFieldBuilder();
            getPartitionLocationFieldBuilder();
          }
        }
        @java.lang.Override
        public Builder clear() {
          super.clear();
          bitField0_ = 0;
          partitionId_ = 0L;
          active_ = false;
          childPartitionIds_ = emptyLongList();
          parentPartitionIds_ = emptyLongList();
          partitionStats_ = null;
          if (partitionStatsBuilder_ != null) {
            partitionStatsBuilder_.dispose();
            partitionStatsBuilder_ = null;
          }
          partitionLocation_ = null;
          if (partitionLocationBuilder_ != null) {
            partitionLocationBuilder_.dispose();
            partitionLocationBuilder_ = null;
          }
          return this;
        }

        @java.lang.Override
        public com.google.protobuf.Descriptors.Descriptor
            getDescriptorForType() {
          return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_DescribeTopicResult_PartitionInfo_descriptor;
        }

        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo getDefaultInstanceForType() {
          return tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo.getDefaultInstance();
        }

        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo build() {
          tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo result = buildPartial();
          if (!result.isInitialized()) {
            throw newUninitializedMessageException(result);
          }
          return result;
        }

        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo buildPartial() {
          tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo result = new tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo(this);
          if (bitField0_ != 0) { buildPartial0(result); }
          onBuilt();
          return result;
        }

        private void buildPartial0(tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo result) {
          int from_bitField0_ = bitField0_;
          if (((from_bitField0_ & 0x00000001) != 0)) {
            result.partitionId_ = partitionId_;
          }
          if (((from_bitField0_ & 0x00000002) != 0)) {
            result.active_ = active_;
          }
          if (((from_bitField0_ & 0x00000004) != 0)) {
            childPartitionIds_.makeImmutable();
            result.childPartitionIds_ = childPartitionIds_;
          }
          if (((from_bitField0_ & 0x00000008) != 0)) {
            parentPartitionIds_.makeImmutable();
            result.parentPartitionIds_ = parentPartitionIds_;
          }
          int to_bitField0_ = 0;
          if (((from_bitField0_ & 0x00000010) != 0)) {
            result.partitionStats_ = partitionStatsBuilder_ == null
                ? partitionStats_
                : partitionStatsBuilder_.build();
            to_bitField0_ |= 0x00000001;
          }
          if (((from_bitField0_ & 0x00000020) != 0)) {
            result.partitionLocation_ = partitionLocationBuilder_ == null
                ? partitionLocation_
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            to_bitField0_ |= 0x00000002;
          }
          result.bitField0_ |= to_bitField0_;
        }

        @java.lang.Override
        public Builder clone() {
          return super.clone();
        }
        @java.lang.Override
        public Builder setField(
            com.google.protobuf.Descriptors.FieldDescriptor field,
            java.lang.Object value) {
          return super.setField(field, value);
        }
        @java.lang.Override
        public Builder clearField(
            com.google.protobuf.Descriptors.FieldDescriptor field) {
          return super.clearField(field);
        }
        @java.lang.Override
        public Builder clearOneof(
            com.google.protobuf.Descriptors.OneofDescriptor oneof) {
          return super.clearOneof(oneof);
        }
        @java.lang.Override
        public Builder setRepeatedField(
            com.google.protobuf.Descriptors.FieldDescriptor field,
            int index, java.lang.Object value) {
          return super.setRepeatedField(field, index, value);
        }
        @java.lang.Override
        public Builder addRepeatedField(
            com.google.protobuf.Descriptors.FieldDescriptor field,
            java.lang.Object value) {
          return super.addRepeatedField(field, value);
        }
        @java.lang.Override
        public Builder mergeFrom(com.google.protobuf.Message other) {
          if (other instanceof tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo) {
            return mergeFrom((tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo)other);
          } else {
            super.mergeFrom(other);
            return this;
          }
        }

        public Builder mergeFrom(tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo other) {
          if (other == tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo.getDefaultInstance()) return this;
          if (other.getPartitionId() != 0L) {
            setPartitionId(other.getPartitionId());
          }
          if (other.getActive() != false) {
            setActive(other.getActive());
          }
          if (!other.childPartitionIds_.isEmpty()) {
            if (childPartitionIds_.isEmpty()) {
              childPartitionIds_ = other.childPartitionIds_;
              childPartitionIds_.makeImmutable();
              bitField0_ |= 0x00000004;
            } else {
              ensureChildPartitionIdsIsMutable();
              childPartitionIds_.addAll(other.childPartitionIds_);
            }
            onChanged();
          }
          if (!other.parentPartitionIds_.isEmpty()) {
            if (parentPartitionIds_.isEmpty()) {
              parentPartitionIds_ = other.parentPartitionIds_;
              parentPartitionIds_.makeImmutable();
              bitField0_ |= 0x00000008;
            } else {
              ensureParentPartitionIdsIsMutable();
              parentPartitionIds_.addAll(other.parentPartitionIds_);
            }
            onChanged();
          }
          if (other.hasPartitionStats()) {
            mergePartitionStats(other.getPartitionStats());
          }
          if (other.hasPartitionLocation()) {
            mergePartitionLocation(other.getPartitionLocation());
          }
          this.mergeUnknownFields(other.getUnknownFields());
          onChanged();
          return this;
        }

        @java.lang.Override
        public final boolean isInitialized() {
          return true;
        }

        @java.lang.Override
        public Builder mergeFrom(
            com.google.protobuf.CodedInputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws java.io.IOException {
          if (extensionRegistry == null) {
            throw new java.lang.NullPointerException();
          }
          try {
            boolean done = false;
            while (!done) {
              int tag = input.readTag();
              switch (tag) {
                case 0:
                  done = true;
                  break;
                case 8: {
                  partitionId_ = input.readInt64();
                  bitField0_ |= 0x00000001;
                  break;
                } // case 8
                case 16: {
                  active_ = input.readBool();
                  bitField0_ |= 0x00000002;
                  break;
                } // case 16
                case 24: {
                  long v = input.readInt64();
                  ensureChildPartitionIdsIsMutable();
                  childPartitionIds_.addLong(v);
                  break;
                } // case 24
                case 26: {
                  int length = input.readRawVarint32();
                  int limit = input.pushLimit(length);
                  ensureChildPartitionIdsIsMutable();
                  while (input.getBytesUntilLimit() > 0) {
                    childPartitionIds_.addLong(input.readInt64());
                  }
                  input.popLimit(limit);
                  break;
                } // case 26
                case 32: {
                  long v = input.readInt64();
                  ensureParentPartitionIdsIsMutable();
                  parentPartitionIds_.addLong(v);
                  break;
                } // case 32
                case 34: {
                  int length = input.readRawVarint32();
                  int limit = input.pushLimit(length);
                  ensureParentPartitionIdsIsMutable();
                  while (input.getBytesUntilLimit() > 0) {
                    parentPartitionIds_.addLong(input.readInt64());
                  }
                  input.popLimit(limit);
                  break;
                } // case 34
                case 42: {
                  input.readMessage(
                      getPartitionStatsFieldBuilder().getBuilder(),
                      extensionRegistry);
                  bitField0_ |= 0x00000010;
                  break;
                } // case 42
                case 50: {
                  input.readMessage(
                      getPartitionLocationFieldBuilder().getBuilder(),
                      extensionRegistry);
                  bitField0_ |= 0x00000020;
                  break;
                } // case 50
                default: {
                  if (!super.parseUnknownField(input, extensionRegistry, tag)) {
                    done = true; // was an endgroup tag
                  }
                  break;
                } // default:
              } // switch (tag)
            } // while (!done)
          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
            throw e.unwrapIOException();
          } finally {
            onChanged();
          } // finally
          return this;
        }
        private int bitField0_;

        private long partitionId_ ;
        /**
         * 
         * Partition identifier.
         * 
         *
         * int64 partition_id = 1;
         * @return The partitionId.
         */
        @java.lang.Override
        public long getPartitionId() {
          return partitionId_;
        }
        /**
         * 
         * Partition identifier.
         * 
         *
         * int64 partition_id = 1;
         * @param value The partitionId to set.
         * @return This builder for chaining.
         */
        public Builder setPartitionId(long value) {

          partitionId_ = value;
          bitField0_ |= 0x00000001;
          onChanged();
          return this;
        }
        /**
         * 
         * Partition identifier.
         * 
         *
         * int64 partition_id = 1;
         * @return This builder for chaining.
         */
        public Builder clearPartitionId() {
          bitField0_ = (bitField0_ & ~0x00000001);
          partitionId_ = 0L;
          onChanged();
          return this;
        }

        private boolean active_ ;
        /**
         * 
         * Is partition open for write.
         * 
         *
         * bool active = 2;
         * @return The active.
         */
        @java.lang.Override
        public boolean getActive() {
          return active_;
        }
        /**
         * 
         * Is partition open for write.
         * 
         *
         * bool active = 2;
         * @param value The active to set.
         * @return This builder for chaining.
         */
        public Builder setActive(boolean value) {

          active_ = value;
          bitField0_ |= 0x00000002;
          onChanged();
          return this;
        }
        /**
         * 
         * Is partition open for write.
         * 
         *
         * bool active = 2;
         * @return This builder for chaining.
         */
        public Builder clearActive() {
          bitField0_ = (bitField0_ & ~0x00000002);
          active_ = false;
          onChanged();
          return this;
        }

        private com.google.protobuf.Internal.LongList childPartitionIds_ = emptyLongList();
        private void ensureChildPartitionIdsIsMutable() {
          if (!childPartitionIds_.isModifiable()) {
            childPartitionIds_ = makeMutableCopy(childPartitionIds_);
          }
          bitField0_ |= 0x00000004;
        }
        /**
         * 
         * Ids of partitions which was formed when this partition was split or merged.
         * 
         *
         * repeated int64 child_partition_ids = 3;
         * @return A list containing the childPartitionIds.
         */
        public java.util.List
            getChildPartitionIdsList() {
          childPartitionIds_.makeImmutable();
          return childPartitionIds_;
        }
        /**
         * 
         * Ids of partitions which was formed when this partition was split or merged.
         * 
         *
         * repeated int64 child_partition_ids = 3;
         * @return The count of childPartitionIds.
         */
        public int getChildPartitionIdsCount() {
          return childPartitionIds_.size();
        }
        /**
         * 
         * Ids of partitions which was formed when this partition was split or merged.
         * 
         *
         * repeated int64 child_partition_ids = 3;
         * @param index The index of the element to return.
         * @return The childPartitionIds at the given index.
         */
        public long getChildPartitionIds(int index) {
          return childPartitionIds_.getLong(index);
        }
        /**
         * 
         * Ids of partitions which was formed when this partition was split or merged.
         * 
         *
         * repeated int64 child_partition_ids = 3;
         * @param index The index to set the value at.
         * @param value The childPartitionIds to set.
         * @return This builder for chaining.
         */
        public Builder setChildPartitionIds(
            int index, long value) {

          ensureChildPartitionIdsIsMutable();
          childPartitionIds_.setLong(index, value);
          bitField0_ |= 0x00000004;
          onChanged();
          return this;
        }
        /**
         * 
         * Ids of partitions which was formed when this partition was split or merged.
         * 
         *
         * repeated int64 child_partition_ids = 3;
         * @param value The childPartitionIds to add.
         * @return This builder for chaining.
         */
        public Builder addChildPartitionIds(long value) {

          ensureChildPartitionIdsIsMutable();
          childPartitionIds_.addLong(value);
          bitField0_ |= 0x00000004;
          onChanged();
          return this;
        }
        /**
         * 
         * Ids of partitions which was formed when this partition was split or merged.
         * 
         *
         * repeated int64 child_partition_ids = 3;
         * @param values The childPartitionIds to add.
         * @return This builder for chaining.
         */
        public Builder addAllChildPartitionIds(
            java.lang.Iterable values) {
          ensureChildPartitionIdsIsMutable();
          com.google.protobuf.AbstractMessageLite.Builder.addAll(
              values, childPartitionIds_);
          bitField0_ |= 0x00000004;
          onChanged();
          return this;
        }
        /**
         * 
         * Ids of partitions which was formed when this partition was split or merged.
         * 
         *
         * repeated int64 child_partition_ids = 3;
         * @return This builder for chaining.
         */
        public Builder clearChildPartitionIds() {
          childPartitionIds_ = emptyLongList();
          bitField0_ = (bitField0_ & ~0x00000004);
          onChanged();
          return this;
        }

        private com.google.protobuf.Internal.LongList parentPartitionIds_ = emptyLongList();
        private void ensureParentPartitionIdsIsMutable() {
          if (!parentPartitionIds_.isModifiable()) {
            parentPartitionIds_ = makeMutableCopy(parentPartitionIds_);
          }
          bitField0_ |= 0x00000008;
        }
        /**
         * 
         * Ids of partitions from which this partition was formed by split or merge.
         * 
         *
         * repeated int64 parent_partition_ids = 4;
         * @return A list containing the parentPartitionIds.
         */
        public java.util.List
            getParentPartitionIdsList() {
          parentPartitionIds_.makeImmutable();
          return parentPartitionIds_;
        }
        /**
         * 
         * Ids of partitions from which this partition was formed by split or merge.
         * 
         *
         * repeated int64 parent_partition_ids = 4;
         * @return The count of parentPartitionIds.
         */
        public int getParentPartitionIdsCount() {
          return parentPartitionIds_.size();
        }
        /**
         * 
         * Ids of partitions from which this partition was formed by split or merge.
         * 
         *
         * repeated int64 parent_partition_ids = 4;
         * @param index The index of the element to return.
         * @return The parentPartitionIds at the given index.
         */
        public long getParentPartitionIds(int index) {
          return parentPartitionIds_.getLong(index);
        }
        /**
         * 
         * Ids of partitions from which this partition was formed by split or merge.
         * 
         *
         * repeated int64 parent_partition_ids = 4;
         * @param index The index to set the value at.
         * @param value The parentPartitionIds to set.
         * @return This builder for chaining.
         */
        public Builder setParentPartitionIds(
            int index, long value) {

          ensureParentPartitionIdsIsMutable();
          parentPartitionIds_.setLong(index, value);
          bitField0_ |= 0x00000008;
          onChanged();
          return this;
        }
        /**
         * 
         * Ids of partitions from which this partition was formed by split or merge.
         * 
         *
         * repeated int64 parent_partition_ids = 4;
         * @param value The parentPartitionIds to add.
         * @return This builder for chaining.
         */
        public Builder addParentPartitionIds(long value) {

          ensureParentPartitionIdsIsMutable();
          parentPartitionIds_.addLong(value);
          bitField0_ |= 0x00000008;
          onChanged();
          return this;
        }
        /**
         * 
         * Ids of partitions from which this partition was formed by split or merge.
         * 
         *
         * repeated int64 parent_partition_ids = 4;
         * @param values The parentPartitionIds to add.
         * @return This builder for chaining.
         */
        public Builder addAllParentPartitionIds(
            java.lang.Iterable values) {
          ensureParentPartitionIdsIsMutable();
          com.google.protobuf.AbstractMessageLite.Builder.addAll(
              values, parentPartitionIds_);
          bitField0_ |= 0x00000008;
          onChanged();
          return this;
        }
        /**
         * 
         * Ids of partitions from which this partition was formed by split or merge.
         * 
         *
         * repeated int64 parent_partition_ids = 4;
         * @return This builder for chaining.
         */
        public Builder clearParentPartitionIds() {
          parentPartitionIds_ = emptyLongList();
          bitField0_ = (bitField0_ & ~0x00000008);
          onChanged();
          return this;
        }

        private tech.ydb.proto.topic.YdbTopic.PartitionStats partitionStats_;
        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.PartitionStats, tech.ydb.proto.topic.YdbTopic.PartitionStats.Builder, tech.ydb.proto.topic.YdbTopic.PartitionStatsOrBuilder> partitionStatsBuilder_;
        /**
         * 
         * Stats for partition, filled only when include_stats in request is true.
         * 
         *
         * .Ydb.Topic.PartitionStats partition_stats = 5;
         * @return Whether the partitionStats field is set.
         */
        public boolean hasPartitionStats() {
          return ((bitField0_ & 0x00000010) != 0);
        }
        /**
         * 
         * Stats for partition, filled only when include_stats in request is true.
         * 
         *
         * .Ydb.Topic.PartitionStats partition_stats = 5;
         * @return The partitionStats.
         */
        public tech.ydb.proto.topic.YdbTopic.PartitionStats getPartitionStats() {
          if (partitionStatsBuilder_ == null) {
            return partitionStats_ == null ? tech.ydb.proto.topic.YdbTopic.PartitionStats.getDefaultInstance() : partitionStats_;
          } else {
            return partitionStatsBuilder_.getMessage();
          }
        }
        /**
         * 
         * Stats for partition, filled only when include_stats in request is true.
         * 
         *
         * .Ydb.Topic.PartitionStats partition_stats = 5;
         */
        public Builder setPartitionStats(tech.ydb.proto.topic.YdbTopic.PartitionStats value) {
          if (partitionStatsBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            partitionStats_ = value;
          } else {
            partitionStatsBuilder_.setMessage(value);
          }
          bitField0_ |= 0x00000010;
          onChanged();
          return this;
        }
        /**
         * 
         * Stats for partition, filled only when include_stats in request is true.
         * 
         *
         * .Ydb.Topic.PartitionStats partition_stats = 5;
         */
        public Builder setPartitionStats(
            tech.ydb.proto.topic.YdbTopic.PartitionStats.Builder builderForValue) {
          if (partitionStatsBuilder_ == null) {
            partitionStats_ = builderForValue.build();
          } else {
            partitionStatsBuilder_.setMessage(builderForValue.build());
          }
          bitField0_ |= 0x00000010;
          onChanged();
          return this;
        }
        /**
         * 
         * Stats for partition, filled only when include_stats in request is true.
         * 
         *
         * .Ydb.Topic.PartitionStats partition_stats = 5;
         */
        public Builder mergePartitionStats(tech.ydb.proto.topic.YdbTopic.PartitionStats value) {
          if (partitionStatsBuilder_ == null) {
            if (((bitField0_ & 0x00000010) != 0) &&
              partitionStats_ != null &&
              partitionStats_ != tech.ydb.proto.topic.YdbTopic.PartitionStats.getDefaultInstance()) {
              getPartitionStatsBuilder().mergeFrom(value);
            } else {
              partitionStats_ = value;
            }
          } else {
            partitionStatsBuilder_.mergeFrom(value);
          }
          if (partitionStats_ != null) {
            bitField0_ |= 0x00000010;
            onChanged();
          }
          return this;
        }
        /**
         * 
         * Stats for partition, filled only when include_stats in request is true.
         * 
         *
         * .Ydb.Topic.PartitionStats partition_stats = 5;
         */
        public Builder clearPartitionStats() {
          bitField0_ = (bitField0_ & ~0x00000010);
          partitionStats_ = null;
          if (partitionStatsBuilder_ != null) {
            partitionStatsBuilder_.dispose();
            partitionStatsBuilder_ = null;
          }
          onChanged();
          return this;
        }
        /**
         * 
         * Stats for partition, filled only when include_stats in request is true.
         * 
         *
         * .Ydb.Topic.PartitionStats partition_stats = 5;
         */
        public tech.ydb.proto.topic.YdbTopic.PartitionStats.Builder getPartitionStatsBuilder() {
          bitField0_ |= 0x00000010;
          onChanged();
          return getPartitionStatsFieldBuilder().getBuilder();
        }
        /**
         * 
         * Stats for partition, filled only when include_stats in request is true.
         * 
         *
         * .Ydb.Topic.PartitionStats partition_stats = 5;
         */
        public tech.ydb.proto.topic.YdbTopic.PartitionStatsOrBuilder getPartitionStatsOrBuilder() {
          if (partitionStatsBuilder_ != null) {
            return partitionStatsBuilder_.getMessageOrBuilder();
          } else {
            return partitionStats_ == null ?
                tech.ydb.proto.topic.YdbTopic.PartitionStats.getDefaultInstance() : partitionStats_;
          }
        }
        /**
         * 
         * Stats for partition, filled only when include_stats in request is true.
         * 
         *
         * .Ydb.Topic.PartitionStats partition_stats = 5;
         */
        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.PartitionStats, tech.ydb.proto.topic.YdbTopic.PartitionStats.Builder, tech.ydb.proto.topic.YdbTopic.PartitionStatsOrBuilder> 
            getPartitionStatsFieldBuilder() {
          if (partitionStatsBuilder_ == null) {
            partitionStatsBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
                tech.ydb.proto.topic.YdbTopic.PartitionStats, tech.ydb.proto.topic.YdbTopic.PartitionStats.Builder, tech.ydb.proto.topic.YdbTopic.PartitionStatsOrBuilder>(
                    getPartitionStats(),
                    getParentForChildren(),
                    isClean());
            partitionStats_ = null;
          }
          return partitionStatsBuilder_;
        }

        private tech.ydb.proto.topic.YdbTopic.PartitionLocation partitionLocation_;
        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.PartitionLocation, tech.ydb.proto.topic.YdbTopic.PartitionLocation.Builder, tech.ydb.proto.topic.YdbTopic.PartitionLocationOrBuilder> partitionLocationBuilder_;
        /**
         * 
         * Partition location, filled only when include_location in request is true.
         * 
         *
         * .Ydb.Topic.PartitionLocation partition_location = 6;
         * @return Whether the partitionLocation field is set.
         */
        public boolean hasPartitionLocation() {
          return ((bitField0_ & 0x00000020) != 0);
        }
        /**
         * 
         * Partition location, filled only when include_location in request is true.
         * 
         *
         * .Ydb.Topic.PartitionLocation partition_location = 6;
         * @return The partitionLocation.
         */
        public tech.ydb.proto.topic.YdbTopic.PartitionLocation getPartitionLocation() {
          if (partitionLocationBuilder_ == null) {
            return partitionLocation_ == null ? tech.ydb.proto.topic.YdbTopic.PartitionLocation.getDefaultInstance() : partitionLocation_;
          } else {
            return partitionLocationBuilder_.getMessage();
          }
        }
        /**
         * 
         * Partition location, filled only when include_location in request is true.
         * 
         *
         * .Ydb.Topic.PartitionLocation partition_location = 6;
         */
        public Builder setPartitionLocation(tech.ydb.proto.topic.YdbTopic.PartitionLocation value) {
          if (partitionLocationBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            partitionLocation_ = value;
          } else {
            partitionLocationBuilder_.setMessage(value);
          }
          bitField0_ |= 0x00000020;
          onChanged();
          return this;
        }
        /**
         * 
         * Partition location, filled only when include_location in request is true.
         * 
         *
         * .Ydb.Topic.PartitionLocation partition_location = 6;
         */
        public Builder setPartitionLocation(
            tech.ydb.proto.topic.YdbTopic.PartitionLocation.Builder builderForValue) {
          if (partitionLocationBuilder_ == null) {
            partitionLocation_ = builderForValue.build();
          } else {
            partitionLocationBuilder_.setMessage(builderForValue.build());
          }
          bitField0_ |= 0x00000020;
          onChanged();
          return this;
        }
        /**
         * 
         * Partition location, filled only when include_location in request is true.
         * 
         *
         * .Ydb.Topic.PartitionLocation partition_location = 6;
         */
        public Builder mergePartitionLocation(tech.ydb.proto.topic.YdbTopic.PartitionLocation value) {
          if (partitionLocationBuilder_ == null) {
            if (((bitField0_ & 0x00000020) != 0) &&
              partitionLocation_ != null &&
              partitionLocation_ != tech.ydb.proto.topic.YdbTopic.PartitionLocation.getDefaultInstance()) {
              getPartitionLocationBuilder().mergeFrom(value);
            } else {
              partitionLocation_ = value;
            }
          } else {
            partitionLocationBuilder_.mergeFrom(value);
          }
          if (partitionLocation_ != null) {
            bitField0_ |= 0x00000020;
            onChanged();
          }
          return this;
        }
        /**
         * 
         * Partition location, filled only when include_location in request is true.
         * 
         *
         * .Ydb.Topic.PartitionLocation partition_location = 6;
         */
        public Builder clearPartitionLocation() {
          bitField0_ = (bitField0_ & ~0x00000020);
          partitionLocation_ = null;
          if (partitionLocationBuilder_ != null) {
            partitionLocationBuilder_.dispose();
            partitionLocationBuilder_ = null;
          }
          onChanged();
          return this;
        }
        /**
         * 
         * Partition location, filled only when include_location in request is true.
         * 
         *
         * .Ydb.Topic.PartitionLocation partition_location = 6;
         */
        public tech.ydb.proto.topic.YdbTopic.PartitionLocation.Builder getPartitionLocationBuilder() {
          bitField0_ |= 0x00000020;
          onChanged();
          return getPartitionLocationFieldBuilder().getBuilder();
        }
        /**
         * 
         * Partition location, filled only when include_location in request is true.
         * 
         *
         * .Ydb.Topic.PartitionLocation partition_location = 6;
         */
        public tech.ydb.proto.topic.YdbTopic.PartitionLocationOrBuilder getPartitionLocationOrBuilder() {
          if (partitionLocationBuilder_ != null) {
            return partitionLocationBuilder_.getMessageOrBuilder();
          } else {
            return partitionLocation_ == null ?
                tech.ydb.proto.topic.YdbTopic.PartitionLocation.getDefaultInstance() : partitionLocation_;
          }
        }
        /**
         * 
         * Partition location, filled only when include_location in request is true.
         * 
         *
         * .Ydb.Topic.PartitionLocation partition_location = 6;
         */
        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.PartitionLocation, tech.ydb.proto.topic.YdbTopic.PartitionLocation.Builder, tech.ydb.proto.topic.YdbTopic.PartitionLocationOrBuilder> 
            getPartitionLocationFieldBuilder() {
          if (partitionLocationBuilder_ == null) {
            partitionLocationBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
                tech.ydb.proto.topic.YdbTopic.PartitionLocation, tech.ydb.proto.topic.YdbTopic.PartitionLocation.Builder, tech.ydb.proto.topic.YdbTopic.PartitionLocationOrBuilder>(
                    getPartitionLocation(),
                    getParentForChildren(),
                    isClean());
            partitionLocation_ = null;
          }
          return partitionLocationBuilder_;
        }
        @java.lang.Override
        public final Builder setUnknownFields(
            final com.google.protobuf.UnknownFieldSet unknownFields) {
          return super.setUnknownFields(unknownFields);
        }

        @java.lang.Override
        public final Builder mergeUnknownFields(
            final com.google.protobuf.UnknownFieldSet unknownFields) {
          return super.mergeUnknownFields(unknownFields);
        }


        // @@protoc_insertion_point(builder_scope:Ydb.Topic.DescribeTopicResult.PartitionInfo)
      }

      // @@protoc_insertion_point(class_scope:Ydb.Topic.DescribeTopicResult.PartitionInfo)
      private static final tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo DEFAULT_INSTANCE;
      static {
        DEFAULT_INSTANCE = new tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo();
      }

      public static tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo getDefaultInstance() {
        return DEFAULT_INSTANCE;
      }

      private static final com.google.protobuf.Parser
          PARSER = new com.google.protobuf.AbstractParser() {
        @java.lang.Override
        public PartitionInfo parsePartialFrom(
            com.google.protobuf.CodedInputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws com.google.protobuf.InvalidProtocolBufferException {
          Builder builder = newBuilder();
          try {
            builder.mergeFrom(input, extensionRegistry);
          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
            throw e.setUnfinishedMessage(builder.buildPartial());
          } catch (com.google.protobuf.UninitializedMessageException e) {
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         * Approximate size of topic.
         * 
         *
         * int64 store_size_bytes = 1;
         * @param value The storeSizeBytes to set.
         * @return This builder for chaining.
         */
        public Builder setStoreSizeBytes(long value) {

          storeSizeBytes_ = value;
          bitField0_ |= 0x00000001;
          onChanged();
          return this;
        }
        /**
         * 
         * Approximate size of topic.
         * 
         *
         * int64 store_size_bytes = 1;
         * @return This builder for chaining.
         */
        public Builder clearStoreSizeBytes() {
          bitField0_ = (bitField0_ & ~0x00000001);
          storeSizeBytes_ = 0L;
          onChanged();
          return this;
        }

        private com.google.protobuf.Timestamp minLastWriteTime_;
        private com.google.protobuf.SingleFieldBuilderV3<
            com.google.protobuf.Timestamp, com.google.protobuf.Timestamp.Builder, com.google.protobuf.TimestampOrBuilder> minLastWriteTimeBuilder_;
        /**
         * 
         * Minimum of timestamps of last write among all partitions.
         * 
         *
         * .google.protobuf.Timestamp min_last_write_time = 2;
         * @return Whether the minLastWriteTime field is set.
         */
        public boolean hasMinLastWriteTime() {
          return ((bitField0_ & 0x00000002) != 0);
        }
        /**
         * 
         * Minimum of timestamps of last write among all partitions.
         * 
         *
         * .google.protobuf.Timestamp min_last_write_time = 2;
         * @return The minLastWriteTime.
         */
        public com.google.protobuf.Timestamp getMinLastWriteTime() {
          if (minLastWriteTimeBuilder_ == null) {
            return minLastWriteTime_ == null ? com.google.protobuf.Timestamp.getDefaultInstance() : minLastWriteTime_;
          } else {
            return minLastWriteTimeBuilder_.getMessage();
          }
        }
        /**
         * 
         * Minimum of timestamps of last write among all partitions.
         * 
         *
         * .google.protobuf.Timestamp min_last_write_time = 2;
         */
        public Builder setMinLastWriteTime(com.google.protobuf.Timestamp value) {
          if (minLastWriteTimeBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            minLastWriteTime_ = value;
          } else {
            minLastWriteTimeBuilder_.setMessage(value);
          }
          bitField0_ |= 0x00000002;
          onChanged();
          return this;
        }
        /**
         * 
         * Minimum of timestamps of last write among all partitions.
         * 
         *
         * .google.protobuf.Timestamp min_last_write_time = 2;
         */
        public Builder setMinLastWriteTime(
            com.google.protobuf.Timestamp.Builder builderForValue) {
          if (minLastWriteTimeBuilder_ == null) {
            minLastWriteTime_ = builderForValue.build();
          } else {
            minLastWriteTimeBuilder_.setMessage(builderForValue.build());
          }
          bitField0_ |= 0x00000002;
          onChanged();
          return this;
        }
        /**
         * 
         * Minimum of timestamps of last write among all partitions.
         * 
         *
         * .google.protobuf.Timestamp min_last_write_time = 2;
         */
        public Builder mergeMinLastWriteTime(com.google.protobuf.Timestamp value) {
          if (minLastWriteTimeBuilder_ == null) {
            if (((bitField0_ & 0x00000002) != 0) &&
              minLastWriteTime_ != null &&
              minLastWriteTime_ != com.google.protobuf.Timestamp.getDefaultInstance()) {
              getMinLastWriteTimeBuilder().mergeFrom(value);
            } else {
              minLastWriteTime_ = value;
            }
          } else {
            minLastWriteTimeBuilder_.mergeFrom(value);
          }
          if (minLastWriteTime_ != null) {
            bitField0_ |= 0x00000002;
            onChanged();
          }
          return this;
        }
        /**
         * 
         * Minimum of timestamps of last write among all partitions.
         * 
         *
         * .google.protobuf.Timestamp min_last_write_time = 2;
         */
        public Builder clearMinLastWriteTime() {
          bitField0_ = (bitField0_ & ~0x00000002);
          minLastWriteTime_ = null;
          if (minLastWriteTimeBuilder_ != null) {
            minLastWriteTimeBuilder_.dispose();
            minLastWriteTimeBuilder_ = null;
          }
          onChanged();
          return this;
        }
        /**
         * 
         * Minimum of timestamps of last write among all partitions.
         * 
         *
         * .google.protobuf.Timestamp min_last_write_time = 2;
         */
        public com.google.protobuf.Timestamp.Builder getMinLastWriteTimeBuilder() {
          bitField0_ |= 0x00000002;
          onChanged();
          return getMinLastWriteTimeFieldBuilder().getBuilder();
        }
        /**
         * 
         * Minimum of timestamps of last write among all partitions.
         * 
         *
         * .google.protobuf.Timestamp min_last_write_time = 2;
         */
        public com.google.protobuf.TimestampOrBuilder getMinLastWriteTimeOrBuilder() {
          if (minLastWriteTimeBuilder_ != null) {
            return minLastWriteTimeBuilder_.getMessageOrBuilder();
          } else {
            return minLastWriteTime_ == null ?
                com.google.protobuf.Timestamp.getDefaultInstance() : minLastWriteTime_;
          }
        }
        /**
         * 
         * Minimum of timestamps of last write among all partitions.
         * 
         *
         * .google.protobuf.Timestamp min_last_write_time = 2;
         */
        private com.google.protobuf.SingleFieldBuilderV3<
            com.google.protobuf.Timestamp, com.google.protobuf.Timestamp.Builder, com.google.protobuf.TimestampOrBuilder> 
            getMinLastWriteTimeFieldBuilder() {
          if (minLastWriteTimeBuilder_ == null) {
            minLastWriteTimeBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
                com.google.protobuf.Timestamp, com.google.protobuf.Timestamp.Builder, com.google.protobuf.TimestampOrBuilder>(
                    getMinLastWriteTime(),
                    getParentForChildren(),
                    isClean());
            minLastWriteTime_ = null;
          }
          return minLastWriteTimeBuilder_;
        }

        private com.google.protobuf.Duration maxWriteTimeLag_;
        private com.google.protobuf.SingleFieldBuilderV3<
            com.google.protobuf.Duration, com.google.protobuf.Duration.Builder, com.google.protobuf.DurationOrBuilder> maxWriteTimeLagBuilder_;
        /**
         * 
         * Maximum of differences between write timestamp and create timestamp for all messages, written during last minute.
         * 
         *
         * .google.protobuf.Duration max_write_time_lag = 3;
         * @return Whether the maxWriteTimeLag field is set.
         */
        public boolean hasMaxWriteTimeLag() {
          return ((bitField0_ & 0x00000004) != 0);
        }
        /**
         * 
         * Maximum of differences between write timestamp and create timestamp for all messages, written during last minute.
         * 
         *
         * .google.protobuf.Duration max_write_time_lag = 3;
         * @return The maxWriteTimeLag.
         */
        public com.google.protobuf.Duration getMaxWriteTimeLag() {
          if (maxWriteTimeLagBuilder_ == null) {
            return maxWriteTimeLag_ == null ? com.google.protobuf.Duration.getDefaultInstance() : maxWriteTimeLag_;
          } else {
            return maxWriteTimeLagBuilder_.getMessage();
          }
        }
        /**
         * 
         * Maximum of differences between write timestamp and create timestamp for all messages, written during last minute.
         * 
         *
         * .google.protobuf.Duration max_write_time_lag = 3;
         */
        public Builder setMaxWriteTimeLag(com.google.protobuf.Duration value) {
          if (maxWriteTimeLagBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            maxWriteTimeLag_ = value;
          } else {
            maxWriteTimeLagBuilder_.setMessage(value);
          }
          bitField0_ |= 0x00000004;
          onChanged();
          return this;
        }
        /**
         * 
         * Maximum of differences between write timestamp and create timestamp for all messages, written during last minute.
         * 
         *
         * .google.protobuf.Duration max_write_time_lag = 3;
         */
        public Builder setMaxWriteTimeLag(
            com.google.protobuf.Duration.Builder builderForValue) {
          if (maxWriteTimeLagBuilder_ == null) {
            maxWriteTimeLag_ = builderForValue.build();
          } else {
            maxWriteTimeLagBuilder_.setMessage(builderForValue.build());
          }
          bitField0_ |= 0x00000004;
          onChanged();
          return this;
        }
        /**
         * 
         * Maximum of differences between write timestamp and create timestamp for all messages, written during last minute.
         * 
         *
         * .google.protobuf.Duration max_write_time_lag = 3;
         */
        public Builder mergeMaxWriteTimeLag(com.google.protobuf.Duration value) {
          if (maxWriteTimeLagBuilder_ == null) {
            if (((bitField0_ & 0x00000004) != 0) &&
              maxWriteTimeLag_ != null &&
              maxWriteTimeLag_ != com.google.protobuf.Duration.getDefaultInstance()) {
              getMaxWriteTimeLagBuilder().mergeFrom(value);
            } else {
              maxWriteTimeLag_ = value;
            }
          } else {
            maxWriteTimeLagBuilder_.mergeFrom(value);
          }
          if (maxWriteTimeLag_ != null) {
            bitField0_ |= 0x00000004;
            onChanged();
          }
          return this;
        }
        /**
         * 
         * Maximum of differences between write timestamp and create timestamp for all messages, written during last minute.
         * 
         *
         * .google.protobuf.Duration max_write_time_lag = 3;
         */
        public Builder clearMaxWriteTimeLag() {
          bitField0_ = (bitField0_ & ~0x00000004);
          maxWriteTimeLag_ = null;
          if (maxWriteTimeLagBuilder_ != null) {
            maxWriteTimeLagBuilder_.dispose();
            maxWriteTimeLagBuilder_ = null;
          }
          onChanged();
          return this;
        }
        /**
         * 
         * Maximum of differences between write timestamp and create timestamp for all messages, written during last minute.
         * 
         *
         * .google.protobuf.Duration max_write_time_lag = 3;
         */
        public com.google.protobuf.Duration.Builder getMaxWriteTimeLagBuilder() {
          bitField0_ |= 0x00000004;
          onChanged();
          return getMaxWriteTimeLagFieldBuilder().getBuilder();
        }
        /**
         * 
         * Maximum of differences between write timestamp and create timestamp for all messages, written during last minute.
         * 
         *
         * .google.protobuf.Duration max_write_time_lag = 3;
         */
        public com.google.protobuf.DurationOrBuilder getMaxWriteTimeLagOrBuilder() {
          if (maxWriteTimeLagBuilder_ != null) {
            return maxWriteTimeLagBuilder_.getMessageOrBuilder();
          } else {
            return maxWriteTimeLag_ == null ?
                com.google.protobuf.Duration.getDefaultInstance() : maxWriteTimeLag_;
          }
        }
        /**
         * 
         * Maximum of differences between write timestamp and create timestamp for all messages, written during last minute.
         * 
         *
         * .google.protobuf.Duration max_write_time_lag = 3;
         */
        private com.google.protobuf.SingleFieldBuilderV3<
            com.google.protobuf.Duration, com.google.protobuf.Duration.Builder, com.google.protobuf.DurationOrBuilder> 
            getMaxWriteTimeLagFieldBuilder() {
          if (maxWriteTimeLagBuilder_ == null) {
            maxWriteTimeLagBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
                com.google.protobuf.Duration, com.google.protobuf.Duration.Builder, com.google.protobuf.DurationOrBuilder>(
                    getMaxWriteTimeLag(),
                    getParentForChildren(),
                    isClean());
            maxWriteTimeLag_ = null;
          }
          return maxWriteTimeLagBuilder_;
        }

        private tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat bytesWritten_;
        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat, tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat.Builder, tech.ydb.proto.topic.YdbTopic.MultipleWindowsStatOrBuilder> bytesWrittenBuilder_;
        /**
         * 
         * How much bytes were written statistics.
         * 
         *
         * .Ydb.Topic.MultipleWindowsStat bytes_written = 4;
         * @return Whether the bytesWritten field is set.
         */
        public boolean hasBytesWritten() {
          return ((bitField0_ & 0x00000008) != 0);
        }
        /**
         * 
         * How much bytes were written statistics.
         * 
         *
         * .Ydb.Topic.MultipleWindowsStat bytes_written = 4;
         * @return The bytesWritten.
         */
        public tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat getBytesWritten() {
          if (bytesWrittenBuilder_ == null) {
            return bytesWritten_ == null ? tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat.getDefaultInstance() : bytesWritten_;
          } else {
            return bytesWrittenBuilder_.getMessage();
          }
        }
        /**
         * 
         * How much bytes were written statistics.
         * 
         *
         * .Ydb.Topic.MultipleWindowsStat bytes_written = 4;
         */
        public Builder setBytesWritten(tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat value) {
          if (bytesWrittenBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            bytesWritten_ = value;
          } else {
            bytesWrittenBuilder_.setMessage(value);
          }
          bitField0_ |= 0x00000008;
          onChanged();
          return this;
        }
        /**
         * 
         * How much bytes were written statistics.
         * 
         *
         * .Ydb.Topic.MultipleWindowsStat bytes_written = 4;
         */
        public Builder setBytesWritten(
            tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat.Builder builderForValue) {
          if (bytesWrittenBuilder_ == null) {
            bytesWritten_ = builderForValue.build();
          } else {
            bytesWrittenBuilder_.setMessage(builderForValue.build());
          }
          bitField0_ |= 0x00000008;
          onChanged();
          return this;
        }
        /**
         * 
         * How much bytes were written statistics.
         * 
         *
         * .Ydb.Topic.MultipleWindowsStat bytes_written = 4;
         */
        public Builder mergeBytesWritten(tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat value) {
          if (bytesWrittenBuilder_ == null) {
            if (((bitField0_ & 0x00000008) != 0) &&
              bytesWritten_ != null &&
              bytesWritten_ != tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat.getDefaultInstance()) {
              getBytesWrittenBuilder().mergeFrom(value);
            } else {
              bytesWritten_ = value;
            }
          } else {
            bytesWrittenBuilder_.mergeFrom(value);
          }
          if (bytesWritten_ != null) {
            bitField0_ |= 0x00000008;
            onChanged();
          }
          return this;
        }
        /**
         * 
         * How much bytes were written statistics.
         * 
         *
         * .Ydb.Topic.MultipleWindowsStat bytes_written = 4;
         */
        public Builder clearBytesWritten() {
          bitField0_ = (bitField0_ & ~0x00000008);
          bytesWritten_ = null;
          if (bytesWrittenBuilder_ != null) {
            bytesWrittenBuilder_.dispose();
            bytesWrittenBuilder_ = null;
          }
          onChanged();
          return this;
        }
        /**
         * 
         * How much bytes were written statistics.
         * 
         *
         * .Ydb.Topic.MultipleWindowsStat bytes_written = 4;
         */
        public tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat.Builder getBytesWrittenBuilder() {
          bitField0_ |= 0x00000008;
          onChanged();
          return getBytesWrittenFieldBuilder().getBuilder();
        }
        /**
         * 
         * How much bytes were written statistics.
         * 
         *
         * .Ydb.Topic.MultipleWindowsStat bytes_written = 4;
         */
        public tech.ydb.proto.topic.YdbTopic.MultipleWindowsStatOrBuilder getBytesWrittenOrBuilder() {
          if (bytesWrittenBuilder_ != null) {
            return bytesWrittenBuilder_.getMessageOrBuilder();
          } else {
            return bytesWritten_ == null ?
                tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat.getDefaultInstance() : bytesWritten_;
          }
        }
        /**
         * 
         * How much bytes were written statistics.
         * 
         *
         * .Ydb.Topic.MultipleWindowsStat bytes_written = 4;
         */
        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat, tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat.Builder, tech.ydb.proto.topic.YdbTopic.MultipleWindowsStatOrBuilder> 
            getBytesWrittenFieldBuilder() {
          if (bytesWrittenBuilder_ == null) {
            bytesWrittenBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
                tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat, tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat.Builder, tech.ydb.proto.topic.YdbTopic.MultipleWindowsStatOrBuilder>(
                    getBytesWritten(),
                    getParentForChildren(),
                    isClean());
            bytesWritten_ = null;
          }
          return bytesWrittenBuilder_;
        }
        @java.lang.Override
        public final Builder setUnknownFields(
            final com.google.protobuf.UnknownFieldSet unknownFields) {
          return super.setUnknownFields(unknownFields);
        }

        @java.lang.Override
        public final Builder mergeUnknownFields(
            final com.google.protobuf.UnknownFieldSet unknownFields) {
          return super.mergeUnknownFields(unknownFields);
        }


        // @@protoc_insertion_point(builder_scope:Ydb.Topic.DescribeTopicResult.TopicStats)
      }

      // @@protoc_insertion_point(class_scope:Ydb.Topic.DescribeTopicResult.TopicStats)
      private static final tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.TopicStats DEFAULT_INSTANCE;
      static {
        DEFAULT_INSTANCE = new tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.TopicStats();
      }

      public static tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.TopicStats getDefaultInstance() {
        return DEFAULT_INSTANCE;
      }

      private static final com.google.protobuf.Parser
          PARSER = new com.google.protobuf.AbstractParser() {
        @java.lang.Override
        public TopicStats parsePartialFrom(
            com.google.protobuf.CodedInputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws com.google.protobuf.InvalidProtocolBufferException {
          Builder builder = newBuilder();
          try {
            builder.mergeFrom(input, extensionRegistry);
          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
            throw e.setUnfinishedMessage(builder.buildPartial());
          } catch (com.google.protobuf.UninitializedMessageException e) {
            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
          } catch (java.io.IOException e) {
            throw new com.google.protobuf.InvalidProtocolBufferException(e)
                .setUnfinishedMessage(builder.buildPartial());
          }
          return builder.buildPartial();
        }
      };

      public static com.google.protobuf.Parser parser() {
        return PARSER;
      }

      @java.lang.Override
      public com.google.protobuf.Parser getParserForType() {
        return PARSER;
      }

      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.TopicStats getDefaultInstanceForType() {
        return DEFAULT_INSTANCE;
      }

    }

    private int bitField0_;
    public static final int SELF_FIELD_NUMBER = 1;
    private tech.ydb.proto.scheme.SchemeOperationProtos.Entry self_;
    /**
     * 
     * Description of scheme object.
     * 
     *
     * .Ydb.Scheme.Entry self = 1;
     * @return Whether the self field is set.
     */
    @java.lang.Override
    public boolean hasSelf() {
      return ((bitField0_ & 0x00000001) != 0);
    }
    /**
     * 
     * Description of scheme object.
     * 
     *
     * .Ydb.Scheme.Entry self = 1;
     * @return The self.
     */
    @java.lang.Override
    public tech.ydb.proto.scheme.SchemeOperationProtos.Entry getSelf() {
      return self_ == null ? tech.ydb.proto.scheme.SchemeOperationProtos.Entry.getDefaultInstance() : self_;
    }
    /**
     * 
     * Description of scheme object.
     * 
     *
     * .Ydb.Scheme.Entry self = 1;
     */
    @java.lang.Override
    public tech.ydb.proto.scheme.SchemeOperationProtos.EntryOrBuilder getSelfOrBuilder() {
      return self_ == null ? tech.ydb.proto.scheme.SchemeOperationProtos.Entry.getDefaultInstance() : self_;
    }

    public static final int PARTITIONING_SETTINGS_FIELD_NUMBER = 2;
    private tech.ydb.proto.topic.YdbTopic.PartitioningSettings partitioningSettings_;
    /**
     * 
     * Settings for partitioning
     * 
     *
     * .Ydb.Topic.PartitioningSettings partitioning_settings = 2;
     * @return Whether the partitioningSettings field is set.
     */
    @java.lang.Override
    public boolean hasPartitioningSettings() {
      return ((bitField0_ & 0x00000002) != 0);
    }
    /**
     * 
     * Settings for partitioning
     * 
     *
     * .Ydb.Topic.PartitioningSettings partitioning_settings = 2;
     * @return The partitioningSettings.
     */
    @java.lang.Override
    public tech.ydb.proto.topic.YdbTopic.PartitioningSettings getPartitioningSettings() {
      return partitioningSettings_ == null ? tech.ydb.proto.topic.YdbTopic.PartitioningSettings.getDefaultInstance() : partitioningSettings_;
    }
    /**
     * 
     * Settings for partitioning
     * 
     *
     * .Ydb.Topic.PartitioningSettings partitioning_settings = 2;
     */
    @java.lang.Override
    public tech.ydb.proto.topic.YdbTopic.PartitioningSettingsOrBuilder getPartitioningSettingsOrBuilder() {
      return partitioningSettings_ == null ? tech.ydb.proto.topic.YdbTopic.PartitioningSettings.getDefaultInstance() : partitioningSettings_;
    }

    public static final int PARTITIONS_FIELD_NUMBER = 3;
    @SuppressWarnings("serial")
    private java.util.List partitions_;
    /**
     * 
     * Partitions description.
     * 
     *
     * repeated .Ydb.Topic.DescribeTopicResult.PartitionInfo partitions = 3;
     */
    @java.lang.Override
    public java.util.List getPartitionsList() {
      return partitions_;
    }
    /**
     * 
     * Partitions description.
     * 
     *
     * repeated .Ydb.Topic.DescribeTopicResult.PartitionInfo partitions = 3;
     */
    @java.lang.Override
    public java.util.List 
        getPartitionsOrBuilderList() {
      return partitions_;
    }
    /**
     * 
     * Partitions description.
     * 
     *
     * repeated .Ydb.Topic.DescribeTopicResult.PartitionInfo partitions = 3;
     */
    @java.lang.Override
    public int getPartitionsCount() {
      return partitions_.size();
    }
    /**
     * 
     * Partitions description.
     * 
     *
     * repeated .Ydb.Topic.DescribeTopicResult.PartitionInfo partitions = 3;
     */
    @java.lang.Override
    public tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo getPartitions(int index) {
      return partitions_.get(index);
    }
    /**
     * 
     * Partitions description.
     * 
     *
     * repeated .Ydb.Topic.DescribeTopicResult.PartitionInfo partitions = 3;
     */
    @java.lang.Override
    public tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfoOrBuilder getPartitionsOrBuilder(
        int index) {
      return partitions_.get(index);
    }

    public static final int RETENTION_PERIOD_FIELD_NUMBER = 4;
    private com.google.protobuf.Duration retentionPeriod_;
    /**
     * 
     * Retention settings.
     * Currently, only one limit may be set, so other should not be set.
     *
     * How long data in partition should be stored.
     * 
     *
     * .google.protobuf.Duration retention_period = 4;
     * @return Whether the retentionPeriod field is set.
     */
    @java.lang.Override
    public boolean hasRetentionPeriod() {
      return ((bitField0_ & 0x00000004) != 0);
    }
    /**
     * 
     * Retention settings.
     * Currently, only one limit may be set, so other should not be set.
     *
     * How long data in partition should be stored.
     * 
     *
     * .google.protobuf.Duration retention_period = 4;
     * @return The retentionPeriod.
     */
    @java.lang.Override
    public com.google.protobuf.Duration getRetentionPeriod() {
      return retentionPeriod_ == null ? com.google.protobuf.Duration.getDefaultInstance() : retentionPeriod_;
    }
    /**
     * 
     * Retention settings.
     * Currently, only one limit may be set, so other should not be set.
     *
     * How long data in partition should be stored.
     * 
     *
     * .google.protobuf.Duration retention_period = 4;
     */
    @java.lang.Override
    public com.google.protobuf.DurationOrBuilder getRetentionPeriodOrBuilder() {
      return retentionPeriod_ == null ? com.google.protobuf.Duration.getDefaultInstance() : retentionPeriod_;
    }

    public static final int RETENTION_STORAGE_MB_FIELD_NUMBER = 5;
    private long retentionStorageMb_ = 0L;
    /**
     * 
     * How much data in partition should be stored.
     * Zero value means infinite limit.
     * 
     *
     * int64 retention_storage_mb = 5;
     * @return The retentionStorageMb.
     */
    @java.lang.Override
    public long getRetentionStorageMb() {
      return retentionStorageMb_;
    }

    public static final int SUPPORTED_CODECS_FIELD_NUMBER = 7;
    private tech.ydb.proto.topic.YdbTopic.SupportedCodecs supportedCodecs_;
    /**
     * 
     * List of allowed codecs for writers.
     * Writes with codec not from this list are forbidden.
     * If empty, codec compatibility check for the topic is disabled.
     * 
     *
     * .Ydb.Topic.SupportedCodecs supported_codecs = 7;
     * @return Whether the supportedCodecs field is set.
     */
    @java.lang.Override
    public boolean hasSupportedCodecs() {
      return ((bitField0_ & 0x00000008) != 0);
    }
    /**
     * 
     * List of allowed codecs for writers.
     * Writes with codec not from this list are forbidden.
     * If empty, codec compatibility check for the topic is disabled.
     * 
     *
     * .Ydb.Topic.SupportedCodecs supported_codecs = 7;
     * @return The supportedCodecs.
     */
    @java.lang.Override
    public tech.ydb.proto.topic.YdbTopic.SupportedCodecs getSupportedCodecs() {
      return supportedCodecs_ == null ? tech.ydb.proto.topic.YdbTopic.SupportedCodecs.getDefaultInstance() : supportedCodecs_;
    }
    /**
     * 
     * List of allowed codecs for writers.
     * Writes with codec not from this list are forbidden.
     * If empty, codec compatibility check for the topic is disabled.
     * 
     *
     * .Ydb.Topic.SupportedCodecs supported_codecs = 7;
     */
    @java.lang.Override
    public tech.ydb.proto.topic.YdbTopic.SupportedCodecsOrBuilder getSupportedCodecsOrBuilder() {
      return supportedCodecs_ == null ? tech.ydb.proto.topic.YdbTopic.SupportedCodecs.getDefaultInstance() : supportedCodecs_;
    }

    public static final int PARTITION_WRITE_SPEED_BYTES_PER_SECOND_FIELD_NUMBER = 8;
    private long partitionWriteSpeedBytesPerSecond_ = 0L;
    /**
     * 
     * Partition write speed in bytes per second.
     * Zero value means default limit: 1 MB per second.
     * 
     *
     * int64 partition_write_speed_bytes_per_second = 8;
     * @return The partitionWriteSpeedBytesPerSecond.
     */
    @java.lang.Override
    public long getPartitionWriteSpeedBytesPerSecond() {
      return partitionWriteSpeedBytesPerSecond_;
    }

    public static final int PARTITION_TOTAL_READ_SPEED_BYTES_PER_SECOND_FIELD_NUMBER = 14;
    private long partitionTotalReadSpeedBytesPerSecond_ = 0L;
    /**
     * int64 partition_total_read_speed_bytes_per_second = 14;
     * @return The partitionTotalReadSpeedBytesPerSecond.
     */
    @java.lang.Override
    public long getPartitionTotalReadSpeedBytesPerSecond() {
      return partitionTotalReadSpeedBytesPerSecond_;
    }

    public static final int PARTITION_CONSUMER_READ_SPEED_BYTES_PER_SECOND_FIELD_NUMBER = 15;
    private long partitionConsumerReadSpeedBytesPerSecond_ = 0L;
    /**
     * int64 partition_consumer_read_speed_bytes_per_second = 15;
     * @return The partitionConsumerReadSpeedBytesPerSecond.
     */
    @java.lang.Override
    public long getPartitionConsumerReadSpeedBytesPerSecond() {
      return partitionConsumerReadSpeedBytesPerSecond_;
    }

    public static final int PARTITION_WRITE_BURST_BYTES_FIELD_NUMBER = 9;
    private long partitionWriteBurstBytes_ = 0L;
    /**
     * 
     * Burst size for write in partition, in bytes.
     * Zero value means default limit: 1 MB.
     * 
     *
     * int64 partition_write_burst_bytes = 9;
     * @return The partitionWriteBurstBytes.
     */
    @java.lang.Override
    public long getPartitionWriteBurstBytes() {
      return partitionWriteBurstBytes_;
    }

    public static final int ATTRIBUTES_FIELD_NUMBER = 10;
    private static final class AttributesDefaultEntryHolder {
      static final com.google.protobuf.MapEntry<
          java.lang.String, java.lang.String> defaultEntry =
              com.google.protobuf.MapEntry
              .newDefaultInstance(
                  tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_DescribeTopicResult_AttributesEntry_descriptor, 
                  com.google.protobuf.WireFormat.FieldType.STRING,
                  "",
                  com.google.protobuf.WireFormat.FieldType.STRING,
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    private com.google.protobuf.MapField<
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    private com.google.protobuf.MapField
    internalGetAttributes() {
      if (attributes_ == null) {
        return com.google.protobuf.MapField.emptyMapField(
            AttributesDefaultEntryHolder.defaultEntry);
      }
      return attributes_;
    }
    public int getAttributesCount() {
      return internalGetAttributes().getMap().size();
    }
    /**
     * 
     * User and server attributes of topic. Server attributes starts from "_" and will be validated by server.
     * 
     *
     * map<string, string> attributes = 10;
     */
    @java.lang.Override
    public boolean containsAttributes(
        java.lang.String key) {
      if (key == null) { throw new NullPointerException("map key"); }
      return internalGetAttributes().getMap().containsKey(key);
    }
    /**
     * Use {@link #getAttributesMap()} instead.
     */
    @java.lang.Override
    @java.lang.Deprecated
    public java.util.Map getAttributes() {
      return getAttributesMap();
    }
    /**
     * 
     * User and server attributes of topic. Server attributes starts from "_" and will be validated by server.
     * 
     *
     * map<string, string> attributes = 10;
     */
    @java.lang.Override
    public java.util.Map getAttributesMap() {
      return internalGetAttributes().getMap();
    }
    /**
     * 
     * User and server attributes of topic. Server attributes starts from "_" and will be validated by server.
     * 
     *
     * map<string, string> attributes = 10;
     */
    @java.lang.Override
    public /* nullable */
java.lang.String getAttributesOrDefault(
        java.lang.String key,
        /* nullable */
java.lang.String defaultValue) {
      if (key == null) { throw new NullPointerException("map key"); }
      java.util.Map map =
          internalGetAttributes().getMap();
      return map.containsKey(key) ? map.get(key) : defaultValue;
    }
    /**
     * 
     * User and server attributes of topic. Server attributes starts from "_" and will be validated by server.
     * 
     *
     * map<string, string> attributes = 10;
     */
    @java.lang.Override
    public java.lang.String getAttributesOrThrow(
        java.lang.String key) {
      if (key == null) { throw new NullPointerException("map key"); }
      java.util.Map map =
          internalGetAttributes().getMap();
      if (!map.containsKey(key)) {
        throw new java.lang.IllegalArgumentException();
      }
      return map.get(key);
    }

    public static final int CONSUMERS_FIELD_NUMBER = 11;
    @SuppressWarnings("serial")
    private java.util.List consumers_;
    /**
     * 
     * List of consumers for this topic.
     * 
     *
     * repeated .Ydb.Topic.Consumer consumers = 11;
     */
    @java.lang.Override
    public java.util.List getConsumersList() {
      return consumers_;
    }
    /**
     * 
     * List of consumers for this topic.
     * 
     *
     * repeated .Ydb.Topic.Consumer consumers = 11;
     */
    @java.lang.Override
    public java.util.List 
        getConsumersOrBuilderList() {
      return consumers_;
    }
    /**
     * 
     * List of consumers for this topic.
     * 
     *
     * repeated .Ydb.Topic.Consumer consumers = 11;
     */
    @java.lang.Override
    public int getConsumersCount() {
      return consumers_.size();
    }
    /**
     * 
     * List of consumers for this topic.
     * 
     *
     * repeated .Ydb.Topic.Consumer consumers = 11;
     */
    @java.lang.Override
    public tech.ydb.proto.topic.YdbTopic.Consumer getConsumers(int index) {
      return consumers_.get(index);
    }
    /**
     * 
     * List of consumers for this topic.
     * 
     *
     * repeated .Ydb.Topic.Consumer consumers = 11;
     */
    @java.lang.Override
    public tech.ydb.proto.topic.YdbTopic.ConsumerOrBuilder getConsumersOrBuilder(
        int index) {
      return consumers_.get(index);
    }

    public static final int METERING_MODE_FIELD_NUMBER = 12;
    private int meteringMode_ = 0;
    /**
     * 
     * Metering settings.
     * 
     *
     * .Ydb.Topic.MeteringMode metering_mode = 12;
     * @return The enum numeric value on the wire for meteringMode.
     */
    @java.lang.Override public int getMeteringModeValue() {
      return meteringMode_;
    }
    /**
     * 
     * Metering settings.
     * 
     *
     * .Ydb.Topic.MeteringMode metering_mode = 12;
     * @return The meteringMode.
     */
    @java.lang.Override public tech.ydb.proto.topic.YdbTopic.MeteringMode getMeteringMode() {
      tech.ydb.proto.topic.YdbTopic.MeteringMode result = tech.ydb.proto.topic.YdbTopic.MeteringMode.forNumber(meteringMode_);
      return result == null ? tech.ydb.proto.topic.YdbTopic.MeteringMode.UNRECOGNIZED : result;
    }

    public static final int TOPIC_STATS_FIELD_NUMBER = 13;
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    /**
     * 
     * Statistics of topic.
     * 
     *
     * .Ydb.Topic.DescribeTopicResult.TopicStats topic_stats = 13;
     * @return Whether the topicStats field is set.
     */
    @java.lang.Override
    public boolean hasTopicStats() {
      return ((bitField0_ & 0x00000010) != 0);
    }
    /**
     * 
     * Statistics of topic.
     * 
     *
     * .Ydb.Topic.DescribeTopicResult.TopicStats topic_stats = 13;
     * @return The topicStats.
     */
    @java.lang.Override
    public tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.TopicStats getTopicStats() {
      return topicStats_ == null ? tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.TopicStats.getDefaultInstance() : topicStats_;
    }
    /**
     * 
     * Statistics of topic.
     * 
     *
     * .Ydb.Topic.DescribeTopicResult.TopicStats topic_stats = 13;
     */
    @java.lang.Override
    public tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.TopicStatsOrBuilder getTopicStatsOrBuilder() {
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    }

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        if (retentionPeriodBuilder_ != null) {
          retentionPeriodBuilder_.dispose();
          retentionPeriodBuilder_ = null;
        }
        retentionStorageMb_ = 0L;
        supportedCodecs_ = null;
        if (supportedCodecsBuilder_ != null) {
          supportedCodecsBuilder_.dispose();
          supportedCodecsBuilder_ = null;
        }
        partitionWriteSpeedBytesPerSecond_ = 0L;
        partitionTotalReadSpeedBytesPerSecond_ = 0L;
        partitionConsumerReadSpeedBytesPerSecond_ = 0L;
        partitionWriteBurstBytes_ = 0L;
        internalGetMutableAttributes().clear();
        if (consumersBuilder_ == null) {
          consumers_ = java.util.Collections.emptyList();
        } else {
          consumers_ = null;
          consumersBuilder_.clear();
        }
        bitField0_ = (bitField0_ & ~0x00000800);
        meteringMode_ = 0;
        topicStats_ = null;
        if (topicStatsBuilder_ != null) {
          topicStatsBuilder_.dispose();
          topicStatsBuilder_ = null;
        }
        return this;
      }

      @java.lang.Override
      public com.google.protobuf.Descriptors.Descriptor
          getDescriptorForType() {
        return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_DescribeTopicResult_descriptor;
      }

      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.DescribeTopicResult getDefaultInstanceForType() {
        return tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.getDefaultInstance();
      }

      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.DescribeTopicResult build() {
        tech.ydb.proto.topic.YdbTopic.DescribeTopicResult result = buildPartial();
        if (!result.isInitialized()) {
          throw newUninitializedMessageException(result);
        }
        return result;
      }

      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.DescribeTopicResult buildPartial() {
        tech.ydb.proto.topic.YdbTopic.DescribeTopicResult result = new tech.ydb.proto.topic.YdbTopic.DescribeTopicResult(this);
        buildPartialRepeatedFields(result);
        if (bitField0_ != 0) { buildPartial0(result); }
        onBuilt();
        return result;
      }

      private void buildPartialRepeatedFields(tech.ydb.proto.topic.YdbTopic.DescribeTopicResult result) {
        if (partitionsBuilder_ == null) {
          if (((bitField0_ & 0x00000004) != 0)) {
            partitions_ = java.util.Collections.unmodifiableList(partitions_);
            bitField0_ = (bitField0_ & ~0x00000004);
          }
          result.partitions_ = partitions_;
        } else {
          result.partitions_ = partitionsBuilder_.build();
        }
        if (consumersBuilder_ == null) {
          if (((bitField0_ & 0x00000800) != 0)) {
            consumers_ = java.util.Collections.unmodifiableList(consumers_);
            bitField0_ = (bitField0_ & ~0x00000800);
          }
          result.consumers_ = consumers_;
        } else {
          result.consumers_ = consumersBuilder_.build();
        }
      }

      private void buildPartial0(tech.ydb.proto.topic.YdbTopic.DescribeTopicResult result) {
        int from_bitField0_ = bitField0_;
        int to_bitField0_ = 0;
        if (((from_bitField0_ & 0x00000001) != 0)) {
          result.self_ = selfBuilder_ == null
              ? self_
              : selfBuilder_.build();
          to_bitField0_ |= 0x00000001;
        }
        if (((from_bitField0_ & 0x00000002) != 0)) {
          result.partitioningSettings_ = partitioningSettingsBuilder_ == null
              ? partitioningSettings_
              : partitioningSettingsBuilder_.build();
          to_bitField0_ |= 0x00000002;
        }
        if (((from_bitField0_ & 0x00000008) != 0)) {
          result.retentionPeriod_ = retentionPeriodBuilder_ == null
              ? retentionPeriod_
              : retentionPeriodBuilder_.build();
          to_bitField0_ |= 0x00000004;
        }
        if (((from_bitField0_ & 0x00000010) != 0)) {
          result.retentionStorageMb_ = retentionStorageMb_;
        }
        if (((from_bitField0_ & 0x00000020) != 0)) {
          result.supportedCodecs_ = supportedCodecsBuilder_ == null
              ? supportedCodecs_
              : supportedCodecsBuilder_.build();
          to_bitField0_ |= 0x00000008;
        }
        if (((from_bitField0_ & 0x00000040) != 0)) {
          result.partitionWriteSpeedBytesPerSecond_ = partitionWriteSpeedBytesPerSecond_;
        }
        if (((from_bitField0_ & 0x00000080) != 0)) {
          result.partitionTotalReadSpeedBytesPerSecond_ = partitionTotalReadSpeedBytesPerSecond_;
        }
        if (((from_bitField0_ & 0x00000100) != 0)) {
          result.partitionConsumerReadSpeedBytesPerSecond_ = partitionConsumerReadSpeedBytesPerSecond_;
        }
        if (((from_bitField0_ & 0x00000200) != 0)) {
          result.partitionWriteBurstBytes_ = partitionWriteBurstBytes_;
        }
        if (((from_bitField0_ & 0x00000400) != 0)) {
          result.attributes_ = internalGetAttributes();
          result.attributes_.makeImmutable();
        }
        if (((from_bitField0_ & 0x00001000) != 0)) {
          result.meteringMode_ = meteringMode_;
        }
        if (((from_bitField0_ & 0x00002000) != 0)) {
          result.topicStats_ = topicStatsBuilder_ == null
              ? topicStats_
              : topicStatsBuilder_.build();
          to_bitField0_ |= 0x00000010;
        }
        result.bitField0_ |= to_bitField0_;
      }

      @java.lang.Override
      public Builder clone() {
        return super.clone();
      }
      @java.lang.Override
      public Builder setField(
          com.google.protobuf.Descriptors.FieldDescriptor field,
          java.lang.Object value) {
        return super.setField(field, value);
      }
      @java.lang.Override
      public Builder clearField(
          com.google.protobuf.Descriptors.FieldDescriptor field) {
        return super.clearField(field);
      }
      @java.lang.Override
      public Builder clearOneof(
          com.google.protobuf.Descriptors.OneofDescriptor oneof) {
        return super.clearOneof(oneof);
      }
      @java.lang.Override
      public Builder setRepeatedField(
          com.google.protobuf.Descriptors.FieldDescriptor field,
          int index, java.lang.Object value) {
        return super.setRepeatedField(field, index, value);
      }
      @java.lang.Override
      public Builder addRepeatedField(
          com.google.protobuf.Descriptors.FieldDescriptor field,
          java.lang.Object value) {
        return super.addRepeatedField(field, value);
      }
      @java.lang.Override
      public Builder mergeFrom(com.google.protobuf.Message other) {
        if (other instanceof tech.ydb.proto.topic.YdbTopic.DescribeTopicResult) {
          return mergeFrom((tech.ydb.proto.topic.YdbTopic.DescribeTopicResult)other);
        } else {
          super.mergeFrom(other);
          return this;
        }
      }

      public Builder mergeFrom(tech.ydb.proto.topic.YdbTopic.DescribeTopicResult other) {
        if (other == tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.getDefaultInstance()) return this;
        if (other.hasSelf()) {
          mergeSelf(other.getSelf());
        }
        if (other.hasPartitioningSettings()) {
          mergePartitioningSettings(other.getPartitioningSettings());
        }
        if (partitionsBuilder_ == null) {
          if (!other.partitions_.isEmpty()) {
            if (partitions_.isEmpty()) {
              partitions_ = other.partitions_;
              bitField0_ = (bitField0_ & ~0x00000004);
            } else {
              ensurePartitionsIsMutable();
              partitions_.addAll(other.partitions_);
            }
            onChanged();
          }
        } else {
          if (!other.partitions_.isEmpty()) {
            if (partitionsBuilder_.isEmpty()) {
              partitionsBuilder_.dispose();
              partitionsBuilder_ = null;
              partitions_ = other.partitions_;
              bitField0_ = (bitField0_ & ~0x00000004);
              partitionsBuilder_ = 
                com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders ?
                   getPartitionsFieldBuilder() : null;
            } else {
              partitionsBuilder_.addAllMessages(other.partitions_);
            }
          }
        }
        if (other.hasRetentionPeriod()) {
          mergeRetentionPeriod(other.getRetentionPeriod());
        }
        if (other.getRetentionStorageMb() != 0L) {
          setRetentionStorageMb(other.getRetentionStorageMb());
        }
        if (other.hasSupportedCodecs()) {
          mergeSupportedCodecs(other.getSupportedCodecs());
        }
        if (other.getPartitionWriteSpeedBytesPerSecond() != 0L) {
          setPartitionWriteSpeedBytesPerSecond(other.getPartitionWriteSpeedBytesPerSecond());
        }
        if (other.getPartitionTotalReadSpeedBytesPerSecond() != 0L) {
          setPartitionTotalReadSpeedBytesPerSecond(other.getPartitionTotalReadSpeedBytesPerSecond());
        }
        if (other.getPartitionConsumerReadSpeedBytesPerSecond() != 0L) {
          setPartitionConsumerReadSpeedBytesPerSecond(other.getPartitionConsumerReadSpeedBytesPerSecond());
        }
        if (other.getPartitionWriteBurstBytes() != 0L) {
          setPartitionWriteBurstBytes(other.getPartitionWriteBurstBytes());
        }
        internalGetMutableAttributes().mergeFrom(
            other.internalGetAttributes());
        bitField0_ |= 0x00000400;
        if (consumersBuilder_ == null) {
          if (!other.consumers_.isEmpty()) {
            if (consumers_.isEmpty()) {
              consumers_ = other.consumers_;
              bitField0_ = (bitField0_ & ~0x00000800);
            } else {
              ensureConsumersIsMutable();
              consumers_.addAll(other.consumers_);
            }
            onChanged();
          }
        } else {
          if (!other.consumers_.isEmpty()) {
            if (consumersBuilder_.isEmpty()) {
              consumersBuilder_.dispose();
              consumersBuilder_ = null;
              consumers_ = other.consumers_;
              bitField0_ = (bitField0_ & ~0x00000800);
              consumersBuilder_ = 
                com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders ?
                   getConsumersFieldBuilder() : null;
            } else {
              consumersBuilder_.addAllMessages(other.consumers_);
            }
          }
        }
        if (other.meteringMode_ != 0) {
          setMeteringModeValue(other.getMeteringModeValue());
        }
        if (other.hasTopicStats()) {
          mergeTopicStats(other.getTopicStats());
        }
        this.mergeUnknownFields(other.getUnknownFields());
        onChanged();
        return this;
      }

      @java.lang.Override
      public final boolean isInitialized() {
        return true;
      }

      @java.lang.Override
      public Builder mergeFrom(
          com.google.protobuf.CodedInputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws java.io.IOException {
        if (extensionRegistry == null) {
          throw new java.lang.NullPointerException();
        }
        try {
          boolean done = false;
          while (!done) {
            int tag = input.readTag();
            switch (tag) {
              case 0:
                done = true;
                break;
              case 10: {
                input.readMessage(
                    getSelfFieldBuilder().getBuilder(),
                    extensionRegistry);
                bitField0_ |= 0x00000001;
                break;
              } // case 10
              case 18: {
                input.readMessage(
                    getPartitioningSettingsFieldBuilder().getBuilder(),
                    extensionRegistry);
                bitField0_ |= 0x00000002;
                break;
              } // case 18
              case 26: {
                tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo m =
                    input.readMessage(
                        tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo.parser(),
                        extensionRegistry);
                if (partitionsBuilder_ == null) {
                  ensurePartitionsIsMutable();
                  partitions_.add(m);
                } else {
                  partitionsBuilder_.addMessage(m);
                }
                break;
              } // case 26
              case 34: {
                input.readMessage(
                    getRetentionPeriodFieldBuilder().getBuilder(),
                    extensionRegistry);
                bitField0_ |= 0x00000008;
                break;
              } // case 34
              case 40: {
                retentionStorageMb_ = input.readInt64();
                bitField0_ |= 0x00000010;
                break;
              } // case 40
              case 58: {
                input.readMessage(
                    getSupportedCodecsFieldBuilder().getBuilder(),
                    extensionRegistry);
                bitField0_ |= 0x00000020;
                break;
              } // case 58
              case 64: {
                partitionWriteSpeedBytesPerSecond_ = input.readInt64();
                bitField0_ |= 0x00000040;
                break;
              } // case 64
              case 72: {
                partitionWriteBurstBytes_ = input.readInt64();
                bitField0_ |= 0x00000200;
                break;
              } // case 72
              case 82: {
                com.google.protobuf.MapEntry
                attributes__ = input.readMessage(
                    AttributesDefaultEntryHolder.defaultEntry.getParserForType(), extensionRegistry);
                internalGetMutableAttributes().getMutableMap().put(
                    attributes__.getKey(), attributes__.getValue());
                bitField0_ |= 0x00000400;
                break;
              } // case 82
              case 90: {
                tech.ydb.proto.topic.YdbTopic.Consumer m =
                    input.readMessage(
                        tech.ydb.proto.topic.YdbTopic.Consumer.parser(),
                        extensionRegistry);
                if (consumersBuilder_ == null) {
                  ensureConsumersIsMutable();
                  consumers_.add(m);
                } else {
                  consumersBuilder_.addMessage(m);
                }
                break;
              } // case 90
              case 96: {
                meteringMode_ = input.readEnum();
                bitField0_ |= 0x00001000;
                break;
              } // case 96
              case 106: {
                input.readMessage(
                    getTopicStatsFieldBuilder().getBuilder(),
                    extensionRegistry);
                bitField0_ |= 0x00002000;
                break;
              } // case 106
              case 112: {
                partitionTotalReadSpeedBytesPerSecond_ = input.readInt64();
                bitField0_ |= 0x00000080;
                break;
              } // case 112
              case 120: {
                partitionConsumerReadSpeedBytesPerSecond_ = input.readInt64();
                bitField0_ |= 0x00000100;
                break;
              } // case 120
              default: {
                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
                  done = true; // was an endgroup tag
                }
                break;
              } // default:
            } // switch (tag)
          } // while (!done)
        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
          throw e.unwrapIOException();
        } finally {
          onChanged();
        } // finally
        return this;
      }
      private int bitField0_;

      private tech.ydb.proto.scheme.SchemeOperationProtos.Entry self_;
      private com.google.protobuf.SingleFieldBuilderV3<
          tech.ydb.proto.scheme.SchemeOperationProtos.Entry, tech.ydb.proto.scheme.SchemeOperationProtos.Entry.Builder, tech.ydb.proto.scheme.SchemeOperationProtos.EntryOrBuilder> selfBuilder_;
      /**
       * 
       * Description of scheme object.
       * 
       *
       * .Ydb.Scheme.Entry self = 1;
       * @return Whether the self field is set.
       */
      public boolean hasSelf() {
        return ((bitField0_ & 0x00000001) != 0);
      }
      /**
       * 
       * Description of scheme object.
       * 
       *
       * .Ydb.Scheme.Entry self = 1;
       * @return The self.
       */
      public tech.ydb.proto.scheme.SchemeOperationProtos.Entry getSelf() {
        if (selfBuilder_ == null) {
          return self_ == null ? tech.ydb.proto.scheme.SchemeOperationProtos.Entry.getDefaultInstance() : self_;
        } else {
          return selfBuilder_.getMessage();
        }
      }
      /**
       * 
       * Description of scheme object.
       * 
       *
       * .Ydb.Scheme.Entry self = 1;
       */
      public Builder setSelf(tech.ydb.proto.scheme.SchemeOperationProtos.Entry value) {
        if (selfBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          self_ = value;
        } else {
          selfBuilder_.setMessage(value);
        }
        bitField0_ |= 0x00000001;
        onChanged();
        return this;
      }
      /**
       * 
       * Description of scheme object.
       * 
       *
       * .Ydb.Scheme.Entry self = 1;
       */
      public Builder setSelf(
          tech.ydb.proto.scheme.SchemeOperationProtos.Entry.Builder builderForValue) {
        if (selfBuilder_ == null) {
          self_ = builderForValue.build();
        } else {
          selfBuilder_.setMessage(builderForValue.build());
        }
        bitField0_ |= 0x00000001;
        onChanged();
        return this;
      }
      /**
       * 
       * Description of scheme object.
       * 
       *
       * .Ydb.Scheme.Entry self = 1;
       */
      public Builder mergeSelf(tech.ydb.proto.scheme.SchemeOperationProtos.Entry value) {
        if (selfBuilder_ == null) {
          if (((bitField0_ & 0x00000001) != 0) &&
            self_ != null &&
            self_ != tech.ydb.proto.scheme.SchemeOperationProtos.Entry.getDefaultInstance()) {
            getSelfBuilder().mergeFrom(value);
          } else {
            self_ = value;
          }
        } else {
          selfBuilder_.mergeFrom(value);
        }
        if (self_ != null) {
          bitField0_ |= 0x00000001;
          onChanged();
        }
        return this;
      }
      /**
       * 
       * Description of scheme object.
       * 
       *
       * .Ydb.Scheme.Entry self = 1;
       */
      public Builder clearSelf() {
        bitField0_ = (bitField0_ & ~0x00000001);
        self_ = null;
        if (selfBuilder_ != null) {
          selfBuilder_.dispose();
          selfBuilder_ = null;
        }
        onChanged();
        return this;
      }
      /**
       * 
       * Description of scheme object.
       * 
       *
       * .Ydb.Scheme.Entry self = 1;
       */
      public tech.ydb.proto.scheme.SchemeOperationProtos.Entry.Builder getSelfBuilder() {
        bitField0_ |= 0x00000001;
        onChanged();
        return getSelfFieldBuilder().getBuilder();
      }
      /**
       * 
       * Description of scheme object.
       * 
       *
       * .Ydb.Scheme.Entry self = 1;
       */
      public tech.ydb.proto.scheme.SchemeOperationProtos.EntryOrBuilder getSelfOrBuilder() {
        if (selfBuilder_ != null) {
          return selfBuilder_.getMessageOrBuilder();
        } else {
          return self_ == null ?
              tech.ydb.proto.scheme.SchemeOperationProtos.Entry.getDefaultInstance() : self_;
        }
      }
      /**
       * 
       * Description of scheme object.
       * 
       *
       * .Ydb.Scheme.Entry self = 1;
       */
      private com.google.protobuf.SingleFieldBuilderV3<
          tech.ydb.proto.scheme.SchemeOperationProtos.Entry, tech.ydb.proto.scheme.SchemeOperationProtos.Entry.Builder, tech.ydb.proto.scheme.SchemeOperationProtos.EntryOrBuilder> 
          getSelfFieldBuilder() {
        if (selfBuilder_ == null) {
          selfBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
              tech.ydb.proto.scheme.SchemeOperationProtos.Entry, tech.ydb.proto.scheme.SchemeOperationProtos.Entry.Builder, tech.ydb.proto.scheme.SchemeOperationProtos.EntryOrBuilder>(
                  getSelf(),
                  getParentForChildren(),
                  isClean());
          self_ = null;
        }
        return selfBuilder_;
      }

      private tech.ydb.proto.topic.YdbTopic.PartitioningSettings partitioningSettings_;
      private com.google.protobuf.SingleFieldBuilderV3<
          tech.ydb.proto.topic.YdbTopic.PartitioningSettings, tech.ydb.proto.topic.YdbTopic.PartitioningSettings.Builder, tech.ydb.proto.topic.YdbTopic.PartitioningSettingsOrBuilder> partitioningSettingsBuilder_;
      /**
       * 
       * Settings for partitioning
       * 
       *
       * .Ydb.Topic.PartitioningSettings partitioning_settings = 2;
       * @return Whether the partitioningSettings field is set.
       */
      public boolean hasPartitioningSettings() {
        return ((bitField0_ & 0x00000002) != 0);
      }
      /**
       * 
       * Settings for partitioning
       * 
       *
       * .Ydb.Topic.PartitioningSettings partitioning_settings = 2;
       * @return The partitioningSettings.
       */
      public tech.ydb.proto.topic.YdbTopic.PartitioningSettings getPartitioningSettings() {
        if (partitioningSettingsBuilder_ == null) {
          return partitioningSettings_ == null ? tech.ydb.proto.topic.YdbTopic.PartitioningSettings.getDefaultInstance() : partitioningSettings_;
        } else {
          return partitioningSettingsBuilder_.getMessage();
        }
      }
      /**
       * 
       * Settings for partitioning
       * 
       *
       * .Ydb.Topic.PartitioningSettings partitioning_settings = 2;
       */
      public Builder setPartitioningSettings(tech.ydb.proto.topic.YdbTopic.PartitioningSettings value) {
        if (partitioningSettingsBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          partitioningSettings_ = value;
        } else {
          partitioningSettingsBuilder_.setMessage(value);
        }
        bitField0_ |= 0x00000002;
        onChanged();
        return this;
      }
      /**
       * 
       * Settings for partitioning
       * 
       *
       * .Ydb.Topic.PartitioningSettings partitioning_settings = 2;
       */
      public Builder setPartitioningSettings(
          tech.ydb.proto.topic.YdbTopic.PartitioningSettings.Builder builderForValue) {
        if (partitioningSettingsBuilder_ == null) {
          partitioningSettings_ = builderForValue.build();
        } else {
          partitioningSettingsBuilder_.setMessage(builderForValue.build());
        }
        bitField0_ |= 0x00000002;
        onChanged();
        return this;
      }
      /**
       * 
       * Settings for partitioning
       * 
       *
       * .Ydb.Topic.PartitioningSettings partitioning_settings = 2;
       */
      public Builder mergePartitioningSettings(tech.ydb.proto.topic.YdbTopic.PartitioningSettings value) {
        if (partitioningSettingsBuilder_ == null) {
          if (((bitField0_ & 0x00000002) != 0) &&
            partitioningSettings_ != null &&
            partitioningSettings_ != tech.ydb.proto.topic.YdbTopic.PartitioningSettings.getDefaultInstance()) {
            getPartitioningSettingsBuilder().mergeFrom(value);
          } else {
            partitioningSettings_ = value;
          }
        } else {
          partitioningSettingsBuilder_.mergeFrom(value);
        }
        if (partitioningSettings_ != null) {
          bitField0_ |= 0x00000002;
          onChanged();
        }
        return this;
      }
      /**
       * 
       * Settings for partitioning
       * 
       *
       * .Ydb.Topic.PartitioningSettings partitioning_settings = 2;
       */
      public Builder clearPartitioningSettings() {
        bitField0_ = (bitField0_ & ~0x00000002);
        partitioningSettings_ = null;
        if (partitioningSettingsBuilder_ != null) {
          partitioningSettingsBuilder_.dispose();
          partitioningSettingsBuilder_ = null;
        }
        onChanged();
        return this;
      }
      /**
       * 
       * Settings for partitioning
       * 
       *
       * .Ydb.Topic.PartitioningSettings partitioning_settings = 2;
       */
      public tech.ydb.proto.topic.YdbTopic.PartitioningSettings.Builder getPartitioningSettingsBuilder() {
        bitField0_ |= 0x00000002;
        onChanged();
        return getPartitioningSettingsFieldBuilder().getBuilder();
      }
      /**
       * 
       * Settings for partitioning
       * 
       *
       * .Ydb.Topic.PartitioningSettings partitioning_settings = 2;
       */
      public tech.ydb.proto.topic.YdbTopic.PartitioningSettingsOrBuilder getPartitioningSettingsOrBuilder() {
        if (partitioningSettingsBuilder_ != null) {
          return partitioningSettingsBuilder_.getMessageOrBuilder();
        } else {
          return partitioningSettings_ == null ?
              tech.ydb.proto.topic.YdbTopic.PartitioningSettings.getDefaultInstance() : partitioningSettings_;
        }
      }
      /**
       * 
       * Settings for partitioning
       * 
       *
       * .Ydb.Topic.PartitioningSettings partitioning_settings = 2;
       */
      private com.google.protobuf.SingleFieldBuilderV3<
          tech.ydb.proto.topic.YdbTopic.PartitioningSettings, tech.ydb.proto.topic.YdbTopic.PartitioningSettings.Builder, tech.ydb.proto.topic.YdbTopic.PartitioningSettingsOrBuilder> 
          getPartitioningSettingsFieldBuilder() {
        if (partitioningSettingsBuilder_ == null) {
          partitioningSettingsBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
              tech.ydb.proto.topic.YdbTopic.PartitioningSettings, tech.ydb.proto.topic.YdbTopic.PartitioningSettings.Builder, tech.ydb.proto.topic.YdbTopic.PartitioningSettingsOrBuilder>(
                  getPartitioningSettings(),
                  getParentForChildren(),
                  isClean());
          partitioningSettings_ = null;
        }
        return partitioningSettingsBuilder_;
      }

      private java.util.List partitions_ =
        java.util.Collections.emptyList();
      private void ensurePartitionsIsMutable() {
        if (!((bitField0_ & 0x00000004) != 0)) {
          partitions_ = new java.util.ArrayList(partitions_);
          bitField0_ |= 0x00000004;
         }
      }

      private com.google.protobuf.RepeatedFieldBuilderV3<
          tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo, tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo.Builder, tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfoOrBuilder> partitionsBuilder_;

      /**
       * 
       * Partitions description.
       * 
       *
       * repeated .Ydb.Topic.DescribeTopicResult.PartitionInfo partitions = 3;
       */
      public java.util.List getPartitionsList() {
        if (partitionsBuilder_ == null) {
          return java.util.Collections.unmodifiableList(partitions_);
        } else {
          return partitionsBuilder_.getMessageList();
        }
      }
      /**
       * 
       * Partitions description.
       * 
       *
       * repeated .Ydb.Topic.DescribeTopicResult.PartitionInfo partitions = 3;
       */
      public int getPartitionsCount() {
        if (partitionsBuilder_ == null) {
          return partitions_.size();
        } else {
          return partitionsBuilder_.getCount();
        }
      }
      /**
       * 
       * Partitions description.
       * 
       *
       * repeated .Ydb.Topic.DescribeTopicResult.PartitionInfo partitions = 3;
       */
      public tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo getPartitions(int index) {
        if (partitionsBuilder_ == null) {
          return partitions_.get(index);
        } else {
          return partitionsBuilder_.getMessage(index);
        }
      }
      /**
       * 
       * Partitions description.
       * 
       *
       * repeated .Ydb.Topic.DescribeTopicResult.PartitionInfo partitions = 3;
       */
      public Builder setPartitions(
          int index, tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo value) {
        if (partitionsBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          ensurePartitionsIsMutable();
          partitions_.set(index, value);
          onChanged();
        } else {
          partitionsBuilder_.setMessage(index, value);
        }
        return this;
      }
      /**
       * 
       * Partitions description.
       * 
       *
       * repeated .Ydb.Topic.DescribeTopicResult.PartitionInfo partitions = 3;
       */
      public Builder setPartitions(
          int index, tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo.Builder builderForValue) {
        if (partitionsBuilder_ == null) {
          ensurePartitionsIsMutable();
          partitions_.set(index, builderForValue.build());
          onChanged();
        } else {
          partitionsBuilder_.setMessage(index, builderForValue.build());
        }
        return this;
      }
      /**
       * 
       * Partitions description.
       * 
       *
       * repeated .Ydb.Topic.DescribeTopicResult.PartitionInfo partitions = 3;
       */
      public Builder addPartitions(tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo value) {
        if (partitionsBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          ensurePartitionsIsMutable();
          partitions_.add(value);
          onChanged();
        } else {
          partitionsBuilder_.addMessage(value);
        }
        return this;
      }
      /**
       * 
       * Partitions description.
       * 
       *
       * repeated .Ydb.Topic.DescribeTopicResult.PartitionInfo partitions = 3;
       */
      public Builder addPartitions(
          int index, tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo value) {
        if (partitionsBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          ensurePartitionsIsMutable();
          partitions_.add(index, value);
          onChanged();
        } else {
          partitionsBuilder_.addMessage(index, value);
        }
        return this;
      }
      /**
       * 
       * Partitions description.
       * 
       *
       * repeated .Ydb.Topic.DescribeTopicResult.PartitionInfo partitions = 3;
       */
      public Builder addPartitions(
          tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo.Builder builderForValue) {
        if (partitionsBuilder_ == null) {
          ensurePartitionsIsMutable();
          partitions_.add(builderForValue.build());
          onChanged();
        } else {
          partitionsBuilder_.addMessage(builderForValue.build());
        }
        return this;
      }
      /**
       * 
       * Partitions description.
       * 
       *
       * repeated .Ydb.Topic.DescribeTopicResult.PartitionInfo partitions = 3;
       */
      public Builder addPartitions(
          int index, tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo.Builder builderForValue) {
        if (partitionsBuilder_ == null) {
          ensurePartitionsIsMutable();
          partitions_.add(index, builderForValue.build());
          onChanged();
        } else {
          partitionsBuilder_.addMessage(index, builderForValue.build());
        }
        return this;
      }
      /**
       * 
       * Partitions description.
       * 
       *
       * repeated .Ydb.Topic.DescribeTopicResult.PartitionInfo partitions = 3;
       */
      public Builder addAllPartitions(
          java.lang.Iterable values) {
        if (partitionsBuilder_ == null) {
          ensurePartitionsIsMutable();
          com.google.protobuf.AbstractMessageLite.Builder.addAll(
              values, partitions_);
          onChanged();
        } else {
          partitionsBuilder_.addAllMessages(values);
        }
        return this;
      }
      /**
       * 
       * Partitions description.
       * 
       *
       * repeated .Ydb.Topic.DescribeTopicResult.PartitionInfo partitions = 3;
       */
      public Builder clearPartitions() {
        if (partitionsBuilder_ == null) {
          partitions_ = java.util.Collections.emptyList();
          bitField0_ = (bitField0_ & ~0x00000004);
          onChanged();
        } else {
          partitionsBuilder_.clear();
        }
        return this;
      }
      /**
       * 
       * Partitions description.
       * 
       *
       * repeated .Ydb.Topic.DescribeTopicResult.PartitionInfo partitions = 3;
       */
      public Builder removePartitions(int index) {
        if (partitionsBuilder_ == null) {
          ensurePartitionsIsMutable();
          partitions_.remove(index);
          onChanged();
        } else {
          partitionsBuilder_.remove(index);
        }
        return this;
      }
      /**
       * 
       * Partitions description.
       * 
       *
       * repeated .Ydb.Topic.DescribeTopicResult.PartitionInfo partitions = 3;
       */
      public tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo.Builder getPartitionsBuilder(
          int index) {
        return getPartitionsFieldBuilder().getBuilder(index);
      }
      /**
       * 
       * Partitions description.
       * 
       *
       * repeated .Ydb.Topic.DescribeTopicResult.PartitionInfo partitions = 3;
       */
      public tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfoOrBuilder getPartitionsOrBuilder(
          int index) {
        if (partitionsBuilder_ == null) {
          return partitions_.get(index);  } else {
          return partitionsBuilder_.getMessageOrBuilder(index);
        }
      }
      /**
       * 
       * Partitions description.
       * 
       *
       * repeated .Ydb.Topic.DescribeTopicResult.PartitionInfo partitions = 3;
       */
      public java.util.List 
           getPartitionsOrBuilderList() {
        if (partitionsBuilder_ != null) {
          return partitionsBuilder_.getMessageOrBuilderList();
        } else {
          return java.util.Collections.unmodifiableList(partitions_);
        }
      }
      /**
       * 
       * Partitions description.
       * 
       *
       * repeated .Ydb.Topic.DescribeTopicResult.PartitionInfo partitions = 3;
       */
      public tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo.Builder addPartitionsBuilder() {
        return getPartitionsFieldBuilder().addBuilder(
            tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo.getDefaultInstance());
      }
      /**
       * 
       * Partitions description.
       * 
       *
       * repeated .Ydb.Topic.DescribeTopicResult.PartitionInfo partitions = 3;
       */
      public tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo.Builder addPartitionsBuilder(
          int index) {
        return getPartitionsFieldBuilder().addBuilder(
            index, tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo.getDefaultInstance());
      }
      /**
       * 
       * Partitions description.
       * 
       *
       * repeated .Ydb.Topic.DescribeTopicResult.PartitionInfo partitions = 3;
       */
      public java.util.List 
           getPartitionsBuilderList() {
        return getPartitionsFieldBuilder().getBuilderList();
      }
      private com.google.protobuf.RepeatedFieldBuilderV3<
          tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo, tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo.Builder, tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfoOrBuilder> 
          getPartitionsFieldBuilder() {
        if (partitionsBuilder_ == null) {
          partitionsBuilder_ = new com.google.protobuf.RepeatedFieldBuilderV3<
              tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo, tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo.Builder, tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfoOrBuilder>(
                  partitions_,
                  ((bitField0_ & 0x00000004) != 0),
                  getParentForChildren(),
                  isClean());
          partitions_ = null;
        }
        return partitionsBuilder_;
      }

      private com.google.protobuf.Duration retentionPeriod_;
      private com.google.protobuf.SingleFieldBuilderV3<
          com.google.protobuf.Duration, com.google.protobuf.Duration.Builder, com.google.protobuf.DurationOrBuilder> retentionPeriodBuilder_;
      /**
       * 
       * Retention settings.
       * Currently, only one limit may be set, so other should not be set.
       *
       * How long data in partition should be stored.
       * 
       *
       * .google.protobuf.Duration retention_period = 4;
       * @return Whether the retentionPeriod field is set.
       */
      public boolean hasRetentionPeriod() {
        return ((bitField0_ & 0x00000008) != 0);
      }
      /**
       * 
       * Retention settings.
       * Currently, only one limit may be set, so other should not be set.
       *
       * How long data in partition should be stored.
       * 
       *
       * .google.protobuf.Duration retention_period = 4;
       * @return The retentionPeriod.
       */
      public com.google.protobuf.Duration getRetentionPeriod() {
        if (retentionPeriodBuilder_ == null) {
          return retentionPeriod_ == null ? com.google.protobuf.Duration.getDefaultInstance() : retentionPeriod_;
        } else {
          return retentionPeriodBuilder_.getMessage();
        }
      }
      /**
       * 
       * Retention settings.
       * Currently, only one limit may be set, so other should not be set.
       *
       * How long data in partition should be stored.
       * 
       *
       * .google.protobuf.Duration retention_period = 4;
       */
      public Builder setRetentionPeriod(com.google.protobuf.Duration value) {
        if (retentionPeriodBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          retentionPeriod_ = value;
        } else {
          retentionPeriodBuilder_.setMessage(value);
        }
        bitField0_ |= 0x00000008;
        onChanged();
        return this;
      }
      /**
       * 
       * Retention settings.
       * Currently, only one limit may be set, so other should not be set.
       *
       * How long data in partition should be stored.
       * 
       *
       * .google.protobuf.Duration retention_period = 4;
       */
      public Builder setRetentionPeriod(
          com.google.protobuf.Duration.Builder builderForValue) {
        if (retentionPeriodBuilder_ == null) {
          retentionPeriod_ = builderForValue.build();
        } else {
          retentionPeriodBuilder_.setMessage(builderForValue.build());
        }
        bitField0_ |= 0x00000008;
        onChanged();
        return this;
      }
      /**
       * 
       * Retention settings.
       * Currently, only one limit may be set, so other should not be set.
       *
       * How long data in partition should be stored.
       * 
       *
       * .google.protobuf.Duration retention_period = 4;
       */
      public Builder mergeRetentionPeriod(com.google.protobuf.Duration value) {
        if (retentionPeriodBuilder_ == null) {
          if (((bitField0_ & 0x00000008) != 0) &&
            retentionPeriod_ != null &&
            retentionPeriod_ != com.google.protobuf.Duration.getDefaultInstance()) {
            getRetentionPeriodBuilder().mergeFrom(value);
          } else {
            retentionPeriod_ = value;
          }
        } else {
          retentionPeriodBuilder_.mergeFrom(value);
        }
        if (retentionPeriod_ != null) {
          bitField0_ |= 0x00000008;
          onChanged();
        }
        return this;
      }
      /**
       * 
       * Retention settings.
       * Currently, only one limit may be set, so other should not be set.
       *
       * How long data in partition should be stored.
       * 
       *
       * .google.protobuf.Duration retention_period = 4;
       */
      public Builder clearRetentionPeriod() {
        bitField0_ = (bitField0_ & ~0x00000008);
        retentionPeriod_ = null;
        if (retentionPeriodBuilder_ != null) {
          retentionPeriodBuilder_.dispose();
          retentionPeriodBuilder_ = null;
        }
        onChanged();
        return this;
      }
      /**
       * 
       * Retention settings.
       * Currently, only one limit may be set, so other should not be set.
       *
       * How long data in partition should be stored.
       * 
       *
       * .google.protobuf.Duration retention_period = 4;
       */
      public com.google.protobuf.Duration.Builder getRetentionPeriodBuilder() {
        bitField0_ |= 0x00000008;
        onChanged();
        return getRetentionPeriodFieldBuilder().getBuilder();
      }
      /**
       * 
       * Retention settings.
       * Currently, only one limit may be set, so other should not be set.
       *
       * How long data in partition should be stored.
       * 
       *
       * .google.protobuf.Duration retention_period = 4;
       */
      public com.google.protobuf.DurationOrBuilder getRetentionPeriodOrBuilder() {
        if (retentionPeriodBuilder_ != null) {
          return retentionPeriodBuilder_.getMessageOrBuilder();
        } else {
          return retentionPeriod_ == null ?
              com.google.protobuf.Duration.getDefaultInstance() : retentionPeriod_;
        }
      }
      /**
       * 
       * Retention settings.
       * Currently, only one limit may be set, so other should not be set.
       *
       * How long data in partition should be stored.
       * 
       *
       * .google.protobuf.Duration retention_period = 4;
       */
      private com.google.protobuf.SingleFieldBuilderV3<
          com.google.protobuf.Duration, com.google.protobuf.Duration.Builder, com.google.protobuf.DurationOrBuilder> 
          getRetentionPeriodFieldBuilder() {
        if (retentionPeriodBuilder_ == null) {
          retentionPeriodBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
              com.google.protobuf.Duration, com.google.protobuf.Duration.Builder, com.google.protobuf.DurationOrBuilder>(
                  getRetentionPeriod(),
                  getParentForChildren(),
                  isClean());
          retentionPeriod_ = null;
        }
        return retentionPeriodBuilder_;
      }

      private long retentionStorageMb_ ;
      /**
       * 
       * How much data in partition should be stored.
       * Zero value means infinite limit.
       * 
       *
       * int64 retention_storage_mb = 5;
       * @return The retentionStorageMb.
       */
      @java.lang.Override
      public long getRetentionStorageMb() {
        return retentionStorageMb_;
      }
      /**
       * 
       * How much data in partition should be stored.
       * Zero value means infinite limit.
       * 
       *
       * int64 retention_storage_mb = 5;
       * @param value The retentionStorageMb to set.
       * @return This builder for chaining.
       */
      public Builder setRetentionStorageMb(long value) {

        retentionStorageMb_ = value;
        bitField0_ |= 0x00000010;
        onChanged();
        return this;
      }
      /**
       * 
       * How much data in partition should be stored.
       * Zero value means infinite limit.
       * 
       *
       * int64 retention_storage_mb = 5;
       * @return This builder for chaining.
       */
      public Builder clearRetentionStorageMb() {
        bitField0_ = (bitField0_ & ~0x00000010);
        retentionStorageMb_ = 0L;
        onChanged();
        return this;
      }

      private tech.ydb.proto.topic.YdbTopic.SupportedCodecs supportedCodecs_;
      private com.google.protobuf.SingleFieldBuilderV3<
          tech.ydb.proto.topic.YdbTopic.SupportedCodecs, tech.ydb.proto.topic.YdbTopic.SupportedCodecs.Builder, tech.ydb.proto.topic.YdbTopic.SupportedCodecsOrBuilder> supportedCodecsBuilder_;
      /**
       * 
       * List of allowed codecs for writers.
       * Writes with codec not from this list are forbidden.
       * If empty, codec compatibility check for the topic is disabled.
       * 
       *
       * .Ydb.Topic.SupportedCodecs supported_codecs = 7;
       * @return Whether the supportedCodecs field is set.
       */
      public boolean hasSupportedCodecs() {
        return ((bitField0_ & 0x00000020) != 0);
      }
      /**
       * 
       * List of allowed codecs for writers.
       * Writes with codec not from this list are forbidden.
       * If empty, codec compatibility check for the topic is disabled.
       * 
       *
       * .Ydb.Topic.SupportedCodecs supported_codecs = 7;
       * @return The supportedCodecs.
       */
      public tech.ydb.proto.topic.YdbTopic.SupportedCodecs getSupportedCodecs() {
        if (supportedCodecsBuilder_ == null) {
          return supportedCodecs_ == null ? tech.ydb.proto.topic.YdbTopic.SupportedCodecs.getDefaultInstance() : supportedCodecs_;
        } else {
          return supportedCodecsBuilder_.getMessage();
        }
      }
      /**
       * 
       * List of allowed codecs for writers.
       * Writes with codec not from this list are forbidden.
       * If empty, codec compatibility check for the topic is disabled.
       * 
       *
       * .Ydb.Topic.SupportedCodecs supported_codecs = 7;
       */
      public Builder setSupportedCodecs(tech.ydb.proto.topic.YdbTopic.SupportedCodecs value) {
        if (supportedCodecsBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          supportedCodecs_ = value;
        } else {
          supportedCodecsBuilder_.setMessage(value);
        }
        bitField0_ |= 0x00000020;
        onChanged();
        return this;
      }
      /**
       * 
       * List of allowed codecs for writers.
       * Writes with codec not from this list are forbidden.
       * If empty, codec compatibility check for the topic is disabled.
       * 
       *
       * .Ydb.Topic.SupportedCodecs supported_codecs = 7;
       */
      public Builder setSupportedCodecs(
          tech.ydb.proto.topic.YdbTopic.SupportedCodecs.Builder builderForValue) {
        if (supportedCodecsBuilder_ == null) {
          supportedCodecs_ = builderForValue.build();
        } else {
          supportedCodecsBuilder_.setMessage(builderForValue.build());
        }
        bitField0_ |= 0x00000020;
        onChanged();
        return this;
      }
      /**
       * 
       * List of allowed codecs for writers.
       * Writes with codec not from this list are forbidden.
       * If empty, codec compatibility check for the topic is disabled.
       * 
       *
       * .Ydb.Topic.SupportedCodecs supported_codecs = 7;
       */
      public Builder mergeSupportedCodecs(tech.ydb.proto.topic.YdbTopic.SupportedCodecs value) {
        if (supportedCodecsBuilder_ == null) {
          if (((bitField0_ & 0x00000020) != 0) &&
            supportedCodecs_ != null &&
            supportedCodecs_ != tech.ydb.proto.topic.YdbTopic.SupportedCodecs.getDefaultInstance()) {
            getSupportedCodecsBuilder().mergeFrom(value);
          } else {
            supportedCodecs_ = value;
          }
        } else {
          supportedCodecsBuilder_.mergeFrom(value);
        }
        if (supportedCodecs_ != null) {
          bitField0_ |= 0x00000020;
          onChanged();
        }
        return this;
      }
      /**
       * 
       * List of allowed codecs for writers.
       * Writes with codec not from this list are forbidden.
       * If empty, codec compatibility check for the topic is disabled.
       * 
       *
       * .Ydb.Topic.SupportedCodecs supported_codecs = 7;
       */
      public Builder clearSupportedCodecs() {
        bitField0_ = (bitField0_ & ~0x00000020);
        supportedCodecs_ = null;
        if (supportedCodecsBuilder_ != null) {
          supportedCodecsBuilder_.dispose();
          supportedCodecsBuilder_ = null;
        }
        onChanged();
        return this;
      }
      /**
       * 
       * List of allowed codecs for writers.
       * Writes with codec not from this list are forbidden.
       * If empty, codec compatibility check for the topic is disabled.
       * 
       *
       * .Ydb.Topic.SupportedCodecs supported_codecs = 7;
       */
      public tech.ydb.proto.topic.YdbTopic.SupportedCodecs.Builder getSupportedCodecsBuilder() {
        bitField0_ |= 0x00000020;
        onChanged();
        return getSupportedCodecsFieldBuilder().getBuilder();
      }
      /**
       * 
       * List of allowed codecs for writers.
       * Writes with codec not from this list are forbidden.
       * If empty, codec compatibility check for the topic is disabled.
       * 
       *
       * .Ydb.Topic.SupportedCodecs supported_codecs = 7;
       */
      public tech.ydb.proto.topic.YdbTopic.SupportedCodecsOrBuilder getSupportedCodecsOrBuilder() {
        if (supportedCodecsBuilder_ != null) {
          return supportedCodecsBuilder_.getMessageOrBuilder();
        } else {
          return supportedCodecs_ == null ?
              tech.ydb.proto.topic.YdbTopic.SupportedCodecs.getDefaultInstance() : supportedCodecs_;
        }
      }
      /**
       * 
       * List of allowed codecs for writers.
       * Writes with codec not from this list are forbidden.
       * If empty, codec compatibility check for the topic is disabled.
       * 
       *
       * .Ydb.Topic.SupportedCodecs supported_codecs = 7;
       */
      private com.google.protobuf.SingleFieldBuilderV3<
          tech.ydb.proto.topic.YdbTopic.SupportedCodecs, tech.ydb.proto.topic.YdbTopic.SupportedCodecs.Builder, tech.ydb.proto.topic.YdbTopic.SupportedCodecsOrBuilder> 
          getSupportedCodecsFieldBuilder() {
        if (supportedCodecsBuilder_ == null) {
          supportedCodecsBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
              tech.ydb.proto.topic.YdbTopic.SupportedCodecs, tech.ydb.proto.topic.YdbTopic.SupportedCodecs.Builder, tech.ydb.proto.topic.YdbTopic.SupportedCodecsOrBuilder>(
                  getSupportedCodecs(),
                  getParentForChildren(),
                  isClean());
          supportedCodecs_ = null;
        }
        return supportedCodecsBuilder_;
      }

      private long partitionWriteSpeedBytesPerSecond_ ;
      /**
       * 
       * Partition write speed in bytes per second.
       * Zero value means default limit: 1 MB per second.
       * 
       *
       * int64 partition_write_speed_bytes_per_second = 8;
       * @return The partitionWriteSpeedBytesPerSecond.
       */
      @java.lang.Override
      public long getPartitionWriteSpeedBytesPerSecond() {
        return partitionWriteSpeedBytesPerSecond_;
      }
      /**
       * 
       * Partition write speed in bytes per second.
       * Zero value means default limit: 1 MB per second.
       * 
       *
       * int64 partition_write_speed_bytes_per_second = 8;
       * @param value The partitionWriteSpeedBytesPerSecond to set.
       * @return This builder for chaining.
       */
      public Builder setPartitionWriteSpeedBytesPerSecond(long value) {

        partitionWriteSpeedBytesPerSecond_ = value;
        bitField0_ |= 0x00000040;
        onChanged();
        return this;
      }
      /**
       * 
       * Partition write speed in bytes per second.
       * Zero value means default limit: 1 MB per second.
       * 
       *
       * int64 partition_write_speed_bytes_per_second = 8;
       * @return This builder for chaining.
       */
      public Builder clearPartitionWriteSpeedBytesPerSecond() {
        bitField0_ = (bitField0_ & ~0x00000040);
        partitionWriteSpeedBytesPerSecond_ = 0L;
        onChanged();
        return this;
      }

      private long partitionTotalReadSpeedBytesPerSecond_ ;
      /**
       * int64 partition_total_read_speed_bytes_per_second = 14;
       * @return The partitionTotalReadSpeedBytesPerSecond.
       */
      @java.lang.Override
      public long getPartitionTotalReadSpeedBytesPerSecond() {
        return partitionTotalReadSpeedBytesPerSecond_;
      }
      /**
       * int64 partition_total_read_speed_bytes_per_second = 14;
       * @param value The partitionTotalReadSpeedBytesPerSecond to set.
       * @return This builder for chaining.
       */
      public Builder setPartitionTotalReadSpeedBytesPerSecond(long value) {

        partitionTotalReadSpeedBytesPerSecond_ = value;
        bitField0_ |= 0x00000080;
        onChanged();
        return this;
      }
      /**
       * int64 partition_total_read_speed_bytes_per_second = 14;
       * @return This builder for chaining.
       */
      public Builder clearPartitionTotalReadSpeedBytesPerSecond() {
        bitField0_ = (bitField0_ & ~0x00000080);
        partitionTotalReadSpeedBytesPerSecond_ = 0L;
        onChanged();
        return this;
      }

      private long partitionConsumerReadSpeedBytesPerSecond_ ;
      /**
       * int64 partition_consumer_read_speed_bytes_per_second = 15;
       * @return The partitionConsumerReadSpeedBytesPerSecond.
       */
      @java.lang.Override
      public long getPartitionConsumerReadSpeedBytesPerSecond() {
        return partitionConsumerReadSpeedBytesPerSecond_;
      }
      /**
       * int64 partition_consumer_read_speed_bytes_per_second = 15;
       * @param value The partitionConsumerReadSpeedBytesPerSecond to set.
       * @return This builder for chaining.
       */
      public Builder setPartitionConsumerReadSpeedBytesPerSecond(long value) {

        partitionConsumerReadSpeedBytesPerSecond_ = value;
        bitField0_ |= 0x00000100;
        onChanged();
        return this;
      }
      /**
       * int64 partition_consumer_read_speed_bytes_per_second = 15;
       * @return This builder for chaining.
       */
      public Builder clearPartitionConsumerReadSpeedBytesPerSecond() {
        bitField0_ = (bitField0_ & ~0x00000100);
        partitionConsumerReadSpeedBytesPerSecond_ = 0L;
        onChanged();
        return this;
      }

      private long partitionWriteBurstBytes_ ;
      /**
       * 
       * Burst size for write in partition, in bytes.
       * Zero value means default limit: 1 MB.
       * 
       *
       * int64 partition_write_burst_bytes = 9;
       * @return The partitionWriteBurstBytes.
       */
      @java.lang.Override
      public long getPartitionWriteBurstBytes() {
        return partitionWriteBurstBytes_;
      }
      /**
       * 
       * Burst size for write in partition, in bytes.
       * Zero value means default limit: 1 MB.
       * 
       *
       * int64 partition_write_burst_bytes = 9;
       * @param value The partitionWriteBurstBytes to set.
       * @return This builder for chaining.
       */
      public Builder setPartitionWriteBurstBytes(long value) {

        partitionWriteBurstBytes_ = value;
        bitField0_ |= 0x00000200;
        onChanged();
        return this;
      }
      /**
       * 
       * Burst size for write in partition, in bytes.
       * Zero value means default limit: 1 MB.
       * 
       *
       * int64 partition_write_burst_bytes = 9;
       * @return This builder for chaining.
       */
      public Builder clearPartitionWriteBurstBytes() {
        bitField0_ = (bitField0_ & ~0x00000200);
        partitionWriteBurstBytes_ = 0L;
        onChanged();
        return this;
      }

      private com.google.protobuf.MapField<
          java.lang.String, java.lang.String> attributes_;
      private com.google.protobuf.MapField
          internalGetAttributes() {
        if (attributes_ == null) {
          return com.google.protobuf.MapField.emptyMapField(
              AttributesDefaultEntryHolder.defaultEntry);
        }
        return attributes_;
      }
      private com.google.protobuf.MapField
          internalGetMutableAttributes() {
        if (attributes_ == null) {
          attributes_ = com.google.protobuf.MapField.newMapField(
              AttributesDefaultEntryHolder.defaultEntry);
        }
        if (!attributes_.isMutable()) {
          attributes_ = attributes_.copy();
        }
        bitField0_ |= 0x00000400;
        onChanged();
        return attributes_;
      }
      public int getAttributesCount() {
        return internalGetAttributes().getMap().size();
      }
      /**
       * 
       * User and server attributes of topic. Server attributes starts from "_" and will be validated by server.
       * 
       *
       * map<string, string> attributes = 10;
       */
      @java.lang.Override
      public boolean containsAttributes(
          java.lang.String key) {
        if (key == null) { throw new NullPointerException("map key"); }
        return internalGetAttributes().getMap().containsKey(key);
      }
      /**
       * Use {@link #getAttributesMap()} instead.
       */
      @java.lang.Override
      @java.lang.Deprecated
      public java.util.Map getAttributes() {
        return getAttributesMap();
      }
      /**
       * 
       * User and server attributes of topic. Server attributes starts from "_" and will be validated by server.
       * 
       *
       * map<string, string> attributes = 10;
       */
      @java.lang.Override
      public java.util.Map getAttributesMap() {
        return internalGetAttributes().getMap();
      }
      /**
       * 
       * User and server attributes of topic. Server attributes starts from "_" and will be validated by server.
       * 
       *
       * map<string, string> attributes = 10;
       */
      @java.lang.Override
      public /* nullable */
java.lang.String getAttributesOrDefault(
          java.lang.String key,
          /* nullable */
java.lang.String defaultValue) {
        if (key == null) { throw new NullPointerException("map key"); }
        java.util.Map map =
            internalGetAttributes().getMap();
        return map.containsKey(key) ? map.get(key) : defaultValue;
      }
      /**
       * 
       * User and server attributes of topic. Server attributes starts from "_" and will be validated by server.
       * 
       *
       * map<string, string> attributes = 10;
       */
      @java.lang.Override
      public java.lang.String getAttributesOrThrow(
          java.lang.String key) {
        if (key == null) { throw new NullPointerException("map key"); }
        java.util.Map map =
            internalGetAttributes().getMap();
        if (!map.containsKey(key)) {
          throw new java.lang.IllegalArgumentException();
        }
        return map.get(key);
      }
      public Builder clearAttributes() {
        bitField0_ = (bitField0_ & ~0x00000400);
        internalGetMutableAttributes().getMutableMap()
            .clear();
        return this;
      }
      /**
       * 
       * User and server attributes of topic. Server attributes starts from "_" and will be validated by server.
       * 
       *
       * map<string, string> attributes = 10;
       */
      public Builder removeAttributes(
          java.lang.String key) {
        if (key == null) { throw new NullPointerException("map key"); }
        internalGetMutableAttributes().getMutableMap()
            .remove(key);
        return this;
      }
      /**
       * Use alternate mutation accessors instead.
       */
      @java.lang.Deprecated
      public java.util.Map
          getMutableAttributes() {
        bitField0_ |= 0x00000400;
        return internalGetMutableAttributes().getMutableMap();
      }
      /**
       * 
       * User and server attributes of topic. Server attributes starts from "_" and will be validated by server.
       * 
       *
       * map<string, string> attributes = 10;
       */
      public Builder putAttributes(
          java.lang.String key,
          java.lang.String value) {
        if (key == null) { throw new NullPointerException("map key"); }
        if (value == null) { throw new NullPointerException("map value"); }
        internalGetMutableAttributes().getMutableMap()
            .put(key, value);
        bitField0_ |= 0x00000400;
        return this;
      }
      /**
       * 
       * User and server attributes of topic. Server attributes starts from "_" and will be validated by server.
       * 
       *
       * map<string, string> attributes = 10;
       */
      public Builder putAllAttributes(
          java.util.Map values) {
        internalGetMutableAttributes().getMutableMap()
            .putAll(values);
        bitField0_ |= 0x00000400;
        return this;
      }

      private java.util.List consumers_ =
        java.util.Collections.emptyList();
      private void ensureConsumersIsMutable() {
        if (!((bitField0_ & 0x00000800) != 0)) {
          consumers_ = new java.util.ArrayList(consumers_);
          bitField0_ |= 0x00000800;
         }
      }

      private com.google.protobuf.RepeatedFieldBuilderV3<
          tech.ydb.proto.topic.YdbTopic.Consumer, tech.ydb.proto.topic.YdbTopic.Consumer.Builder, tech.ydb.proto.topic.YdbTopic.ConsumerOrBuilder> consumersBuilder_;

      /**
       * 
       * List of consumers for this topic.
       * 
       *
       * repeated .Ydb.Topic.Consumer consumers = 11;
       */
      public java.util.List getConsumersList() {
        if (consumersBuilder_ == null) {
          return java.util.Collections.unmodifiableList(consumers_);
        } else {
          return consumersBuilder_.getMessageList();
        }
      }
      /**
       * 
       * List of consumers for this topic.
       * 
       *
       * repeated .Ydb.Topic.Consumer consumers = 11;
       */
      public int getConsumersCount() {
        if (consumersBuilder_ == null) {
          return consumers_.size();
        } else {
          return consumersBuilder_.getCount();
        }
      }
      /**
       * 
       * List of consumers for this topic.
       * 
       *
       * repeated .Ydb.Topic.Consumer consumers = 11;
       */
      public tech.ydb.proto.topic.YdbTopic.Consumer getConsumers(int index) {
        if (consumersBuilder_ == null) {
          return consumers_.get(index);
        } else {
          return consumersBuilder_.getMessage(index);
        }
      }
      /**
       * 
       * List of consumers for this topic.
       * 
       *
       * repeated .Ydb.Topic.Consumer consumers = 11;
       */
      public Builder setConsumers(
          int index, tech.ydb.proto.topic.YdbTopic.Consumer value) {
        if (consumersBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          ensureConsumersIsMutable();
          consumers_.set(index, value);
          onChanged();
        } else {
          consumersBuilder_.setMessage(index, value);
        }
        return this;
      }
      /**
       * 
       * List of consumers for this topic.
       * 
       *
       * repeated .Ydb.Topic.Consumer consumers = 11;
       */
      public Builder setConsumers(
          int index, tech.ydb.proto.topic.YdbTopic.Consumer.Builder builderForValue) {
        if (consumersBuilder_ == null) {
          ensureConsumersIsMutable();
          consumers_.set(index, builderForValue.build());
          onChanged();
        } else {
          consumersBuilder_.setMessage(index, builderForValue.build());
        }
        return this;
      }
      /**
       * 
       * List of consumers for this topic.
       * 
       *
       * repeated .Ydb.Topic.Consumer consumers = 11;
       */
      public Builder addConsumers(tech.ydb.proto.topic.YdbTopic.Consumer value) {
        if (consumersBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          ensureConsumersIsMutable();
          consumers_.add(value);
          onChanged();
        } else {
          consumersBuilder_.addMessage(value);
        }
        return this;
      }
      /**
       * 
       * List of consumers for this topic.
       * 
       *
       * repeated .Ydb.Topic.Consumer consumers = 11;
       */
      public Builder addConsumers(
          int index, tech.ydb.proto.topic.YdbTopic.Consumer value) {
        if (consumersBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          ensureConsumersIsMutable();
          consumers_.add(index, value);
          onChanged();
        } else {
          consumersBuilder_.addMessage(index, value);
        }
        return this;
      }
      /**
       * 
       * List of consumers for this topic.
       * 
       *
       * repeated .Ydb.Topic.Consumer consumers = 11;
       */
      public Builder addConsumers(
          tech.ydb.proto.topic.YdbTopic.Consumer.Builder builderForValue) {
        if (consumersBuilder_ == null) {
          ensureConsumersIsMutable();
          consumers_.add(builderForValue.build());
          onChanged();
        } else {
          consumersBuilder_.addMessage(builderForValue.build());
        }
        return this;
      }
      /**
       * 
       * List of consumers for this topic.
       * 
       *
       * repeated .Ydb.Topic.Consumer consumers = 11;
       */
      public Builder addConsumers(
          int index, tech.ydb.proto.topic.YdbTopic.Consumer.Builder builderForValue) {
        if (consumersBuilder_ == null) {
          ensureConsumersIsMutable();
          consumers_.add(index, builderForValue.build());
          onChanged();
        } else {
          consumersBuilder_.addMessage(index, builderForValue.build());
        }
        return this;
      }
      /**
       * 
       * List of consumers for this topic.
       * 
       *
       * repeated .Ydb.Topic.Consumer consumers = 11;
       */
      public Builder addAllConsumers(
          java.lang.Iterable values) {
        if (consumersBuilder_ == null) {
          ensureConsumersIsMutable();
          com.google.protobuf.AbstractMessageLite.Builder.addAll(
              values, consumers_);
          onChanged();
        } else {
          consumersBuilder_.addAllMessages(values);
        }
        return this;
      }
      /**
       * 
       * List of consumers for this topic.
       * 
       *
       * repeated .Ydb.Topic.Consumer consumers = 11;
       */
      public Builder clearConsumers() {
        if (consumersBuilder_ == null) {
          consumers_ = java.util.Collections.emptyList();
          bitField0_ = (bitField0_ & ~0x00000800);
          onChanged();
        } else {
          consumersBuilder_.clear();
        }
        return this;
      }
      /**
       * 
       * List of consumers for this topic.
       * 
       *
       * repeated .Ydb.Topic.Consumer consumers = 11;
       */
      public Builder removeConsumers(int index) {
        if (consumersBuilder_ == null) {
          ensureConsumersIsMutable();
          consumers_.remove(index);
          onChanged();
        } else {
          consumersBuilder_.remove(index);
        }
        return this;
      }
      /**
       * 
       * List of consumers for this topic.
       * 
       *
       * repeated .Ydb.Topic.Consumer consumers = 11;
       */
      public tech.ydb.proto.topic.YdbTopic.Consumer.Builder getConsumersBuilder(
          int index) {
        return getConsumersFieldBuilder().getBuilder(index);
      }
      /**
       * 
       * List of consumers for this topic.
       * 
       *
       * repeated .Ydb.Topic.Consumer consumers = 11;
       */
      public tech.ydb.proto.topic.YdbTopic.ConsumerOrBuilder getConsumersOrBuilder(
          int index) {
        if (consumersBuilder_ == null) {
          return consumers_.get(index);  } else {
          return consumersBuilder_.getMessageOrBuilder(index);
        }
      }
      /**
       * 
       * List of consumers for this topic.
       * 
       *
       * repeated .Ydb.Topic.Consumer consumers = 11;
       */
      public java.util.List 
           getConsumersOrBuilderList() {
        if (consumersBuilder_ != null) {
          return consumersBuilder_.getMessageOrBuilderList();
        } else {
          return java.util.Collections.unmodifiableList(consumers_);
        }
      }
      /**
       * 
       * List of consumers for this topic.
       * 
       *
       * repeated .Ydb.Topic.Consumer consumers = 11;
       */
      public tech.ydb.proto.topic.YdbTopic.Consumer.Builder addConsumersBuilder() {
        return getConsumersFieldBuilder().addBuilder(
            tech.ydb.proto.topic.YdbTopic.Consumer.getDefaultInstance());
      }
      /**
       * 
       * List of consumers for this topic.
       * 
       *
       * repeated .Ydb.Topic.Consumer consumers = 11;
       */
      public tech.ydb.proto.topic.YdbTopic.Consumer.Builder addConsumersBuilder(
          int index) {
        return getConsumersFieldBuilder().addBuilder(
            index, tech.ydb.proto.topic.YdbTopic.Consumer.getDefaultInstance());
      }
      /**
       * 
       * List of consumers for this topic.
       * 
       *
       * repeated .Ydb.Topic.Consumer consumers = 11;
       */
      public java.util.List 
           getConsumersBuilderList() {
        return getConsumersFieldBuilder().getBuilderList();
      }
      private com.google.protobuf.RepeatedFieldBuilderV3<
          tech.ydb.proto.topic.YdbTopic.Consumer, tech.ydb.proto.topic.YdbTopic.Consumer.Builder, tech.ydb.proto.topic.YdbTopic.ConsumerOrBuilder> 
          getConsumersFieldBuilder() {
        if (consumersBuilder_ == null) {
          consumersBuilder_ = new com.google.protobuf.RepeatedFieldBuilderV3<
              tech.ydb.proto.topic.YdbTopic.Consumer, tech.ydb.proto.topic.YdbTopic.Consumer.Builder, tech.ydb.proto.topic.YdbTopic.ConsumerOrBuilder>(
                  consumers_,
                  ((bitField0_ & 0x00000800) != 0),
                  getParentForChildren(),
                  isClean());
          consumers_ = null;
        }
        return consumersBuilder_;
      }

      private int meteringMode_ = 0;
      /**
       * 
       * Metering settings.
       * 
       *
       * .Ydb.Topic.MeteringMode metering_mode = 12;
       * @return The enum numeric value on the wire for meteringMode.
       */
      @java.lang.Override public int getMeteringModeValue() {
        return meteringMode_;
      }
      /**
       * 
       * Metering settings.
       * 
       *
       * .Ydb.Topic.MeteringMode metering_mode = 12;
       * @param value The enum numeric value on the wire for meteringMode to set.
       * @return This builder for chaining.
       */
      public Builder setMeteringModeValue(int value) {
        meteringMode_ = value;
        bitField0_ |= 0x00001000;
        onChanged();
        return this;
      }
      /**
       * 
       * Metering settings.
       * 
       *
       * .Ydb.Topic.MeteringMode metering_mode = 12;
       * @return The meteringMode.
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.MeteringMode getMeteringMode() {
        tech.ydb.proto.topic.YdbTopic.MeteringMode result = tech.ydb.proto.topic.YdbTopic.MeteringMode.forNumber(meteringMode_);
        return result == null ? tech.ydb.proto.topic.YdbTopic.MeteringMode.UNRECOGNIZED : result;
      }
      /**
       * 
       * Metering settings.
       * 
       *
       * .Ydb.Topic.MeteringMode metering_mode = 12;
       * @param value The meteringMode to set.
       * @return This builder for chaining.
       */
      public Builder setMeteringMode(tech.ydb.proto.topic.YdbTopic.MeteringMode value) {
        if (value == null) {
          throw new NullPointerException();
        }
        bitField0_ |= 0x00001000;
        meteringMode_ = value.getNumber();
        onChanged();
        return this;
      }
      /**
       * 
       * Metering settings.
       * 
       *
       * .Ydb.Topic.MeteringMode metering_mode = 12;
       * @return This builder for chaining.
       */
      public Builder clearMeteringMode() {
        bitField0_ = (bitField0_ & ~0x00001000);
        meteringMode_ = 0;
        onChanged();
        return this;
      }

      private tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.TopicStats topicStats_;
      private com.google.protobuf.SingleFieldBuilderV3<
          tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.TopicStats, tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.TopicStats.Builder, tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.TopicStatsOrBuilder> topicStatsBuilder_;
      /**
       * 
       * Statistics of topic.
       * 
       *
       * .Ydb.Topic.DescribeTopicResult.TopicStats topic_stats = 13;
       * @return Whether the topicStats field is set.
       */
      public boolean hasTopicStats() {
        return ((bitField0_ & 0x00002000) != 0);
      }
      /**
       * 
       * Statistics of topic.
       * 
       *
       * .Ydb.Topic.DescribeTopicResult.TopicStats topic_stats = 13;
       * @return The topicStats.
       */
      public tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.TopicStats getTopicStats() {
        if (topicStatsBuilder_ == null) {
          return topicStats_ == null ? tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.TopicStats.getDefaultInstance() : topicStats_;
        } else {
          return topicStatsBuilder_.getMessage();
        }
      }
      /**
       * 
       * Statistics of topic.
       * 
       *
       * .Ydb.Topic.DescribeTopicResult.TopicStats topic_stats = 13;
       */
      public Builder setTopicStats(tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.TopicStats value) {
        if (topicStatsBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          topicStats_ = value;
        } else {
          topicStatsBuilder_.setMessage(value);
        }
        bitField0_ |= 0x00002000;
        onChanged();
        return this;
      }
      /**
       * 
       * Statistics of topic.
       * 
       *
       * .Ydb.Topic.DescribeTopicResult.TopicStats topic_stats = 13;
       */
      public Builder setTopicStats(
          tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.TopicStats.Builder builderForValue) {
        if (topicStatsBuilder_ == null) {
          topicStats_ = builderForValue.build();
        } else {
          topicStatsBuilder_.setMessage(builderForValue.build());
        }
        bitField0_ |= 0x00002000;
        onChanged();
        return this;
      }
      /**
       * 
       * Statistics of topic.
       * 
       *
       * .Ydb.Topic.DescribeTopicResult.TopicStats topic_stats = 13;
       */
      public Builder mergeTopicStats(tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.TopicStats value) {
        if (topicStatsBuilder_ == null) {
          if (((bitField0_ & 0x00002000) != 0) &&
            topicStats_ != null &&
            topicStats_ != tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.TopicStats.getDefaultInstance()) {
            getTopicStatsBuilder().mergeFrom(value);
          } else {
            topicStats_ = value;
          }
        } else {
          topicStatsBuilder_.mergeFrom(value);
        }
        if (topicStats_ != null) {
          bitField0_ |= 0x00002000;
          onChanged();
        }
        return this;
      }
      /**
       * 
       * Statistics of topic.
       * 
       *
       * .Ydb.Topic.DescribeTopicResult.TopicStats topic_stats = 13;
       */
      public Builder clearTopicStats() {
        bitField0_ = (bitField0_ & ~0x00002000);
        topicStats_ = null;
        if (topicStatsBuilder_ != null) {
          topicStatsBuilder_.dispose();
          topicStatsBuilder_ = null;
        }
        onChanged();
        return this;
      }
      /**
       * 
       * Statistics of topic.
       * 
       *
       * .Ydb.Topic.DescribeTopicResult.TopicStats topic_stats = 13;
       */
      public tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.TopicStats.Builder getTopicStatsBuilder() {
        bitField0_ |= 0x00002000;
        onChanged();
        return getTopicStatsFieldBuilder().getBuilder();
      }
      /**
       * 
       * Statistics of topic.
       * 
       *
       * .Ydb.Topic.DescribeTopicResult.TopicStats topic_stats = 13;
       */
      public tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.TopicStatsOrBuilder getTopicStatsOrBuilder() {
        if (topicStatsBuilder_ != null) {
          return topicStatsBuilder_.getMessageOrBuilder();
        } else {
          return topicStats_ == null ?
              tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.TopicStats.getDefaultInstance() : topicStats_;
        }
      }
      /**
       * 
       * Statistics of topic.
       * 
       *
       * .Ydb.Topic.DescribeTopicResult.TopicStats topic_stats = 13;
       */
      private com.google.protobuf.SingleFieldBuilderV3<
          tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.TopicStats, tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.TopicStats.Builder, tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.TopicStatsOrBuilder> 
          getTopicStatsFieldBuilder() {
        if (topicStatsBuilder_ == null) {
          topicStatsBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
              tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.TopicStats, tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.TopicStats.Builder, tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.TopicStatsOrBuilder>(
                  getTopicStats(),
                  getParentForChildren(),
                  isClean());
          topicStats_ = null;
        }
        return topicStatsBuilder_;
      }
      @java.lang.Override
      public final Builder setUnknownFields(
          final com.google.protobuf.UnknownFieldSet unknownFields) {
        return super.setUnknownFields(unknownFields);
      }

      @java.lang.Override
      public final Builder mergeUnknownFields(
          final com.google.protobuf.UnknownFieldSet unknownFields) {
        return super.mergeUnknownFields(unknownFields);
      }


      // @@protoc_insertion_point(builder_scope:Ydb.Topic.DescribeTopicResult)
    }

    // @@protoc_insertion_point(class_scope:Ydb.Topic.DescribeTopicResult)
    private static final tech.ydb.proto.topic.YdbTopic.DescribeTopicResult DEFAULT_INSTANCE;
    static {
      DEFAULT_INSTANCE = new tech.ydb.proto.topic.YdbTopic.DescribeTopicResult();
    }

    public static tech.ydb.proto.topic.YdbTopic.DescribeTopicResult getDefaultInstance() {
      return DEFAULT_INSTANCE;
    }

    private static final com.google.protobuf.Parser
        PARSER = new com.google.protobuf.AbstractParser() {
      @java.lang.Override
      public DescribeTopicResult parsePartialFrom(
          com.google.protobuf.CodedInputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        Builder builder = newBuilder();
        try {
          builder.mergeFrom(input, extensionRegistry);
        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
          throw e.setUnfinishedMessage(builder.buildPartial());
        } catch (com.google.protobuf.UninitializedMessageException e) {
          throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
        } catch (java.io.IOException e) {
          throw new com.google.protobuf.InvalidProtocolBufferException(e)
              .setUnfinishedMessage(builder.buildPartial());
        }
        return builder.buildPartial();
      }
    };

    public static com.google.protobuf.Parser parser() {
      return PARSER;
    }

    @java.lang.Override
    public com.google.protobuf.Parser getParserForType() {
      return PARSER;
    }

    @java.lang.Override
    public tech.ydb.proto.topic.YdbTopic.DescribeTopicResult getDefaultInstanceForType() {
      return DEFAULT_INSTANCE;
    }

  }

  public interface DescribePartitionRequestOrBuilder extends
      // @@protoc_insertion_point(interface_extends:Ydb.Topic.DescribePartitionRequest)
      com.google.protobuf.MessageOrBuilder {

    /**
     * .Ydb.Operations.OperationParams operation_params = 1;
     * @return Whether the operationParams field is set.
     */
    boolean hasOperationParams();
    /**
     * .Ydb.Operations.OperationParams operation_params = 1;
     * @return The operationParams.
     */
    tech.ydb.proto.OperationProtos.OperationParams getOperationParams();
    /**
     * .Ydb.Operations.OperationParams operation_params = 1;
     */
    tech.ydb.proto.OperationProtos.OperationParamsOrBuilder getOperationParamsOrBuilder();

    /**
     * 
     * Topic path.
     * 
     *
     * string path = 2;
     * @return The path.
     */
    java.lang.String getPath();
    /**
     * 
     * Topic path.
     * 
     *
     * string path = 2;
     * @return The bytes for path.
     */
    com.google.protobuf.ByteString
        getPathBytes();

    /**
     * 
     * Partition identifier.
     * 
     *
     * int64 partition_id = 3;
     * @return The partitionId.
     */
    long getPartitionId();

    /**
     * 
     * Include partition statistics.
     * 
     *
     * bool include_stats = 4;
     * @return The includeStats.
     */
    boolean getIncludeStats();

    /**
     * 
     * Include partition location.
     * 
     *
     * bool include_location = 5;
     * @return The includeLocation.
     */
    boolean getIncludeLocation();
  }
  /**
   * 
   * Describe partition request sent from client to server.
   * 
   *
   * Protobuf type {@code Ydb.Topic.DescribePartitionRequest}
   */
  public static final class DescribePartitionRequest extends
      com.google.protobuf.GeneratedMessageV3 implements
      // @@protoc_insertion_point(message_implements:Ydb.Topic.DescribePartitionRequest)
      DescribePartitionRequestOrBuilder {
  private static final long serialVersionUID = 0L;
    // Use DescribePartitionRequest.newBuilder() to construct.
    private DescribePartitionRequest(com.google.protobuf.GeneratedMessageV3.Builder builder) {
      super(builder);
    }
    private DescribePartitionRequest() {
      path_ = "";
    }

    @java.lang.Override
    @SuppressWarnings({"unused"})
    protected java.lang.Object newInstance(
        UnusedPrivateParameter unused) {
      return new DescribePartitionRequest();
    }

    public static final com.google.protobuf.Descriptors.Descriptor
        getDescriptor() {
      return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_DescribePartitionRequest_descriptor;
    }

    @java.lang.Override
    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
        internalGetFieldAccessorTable() {
      return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_DescribePartitionRequest_fieldAccessorTable
          .ensureFieldAccessorsInitialized(
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     *
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        if (value == null) { throw new NullPointerException(); }
        path_ = value;
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       * 
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        if (value == null) { throw new NullPointerException(); }
        checkByteStringIsUtf8(value);
        path_ = value;
        bitField0_ |= 0x00000002;
        onChanged();
        return this;
      }

      private long partitionId_ ;
      /**
       * 
       * Partition identifier.
       * 
       *
       * int64 partition_id = 3;
       * @return The partitionId.
       */
      @java.lang.Override
      public long getPartitionId() {
        return partitionId_;
      }
      /**
       * 
       * Partition identifier.
       * 
       *
       * int64 partition_id = 3;
       * @param value The partitionId to set.
       * @return This builder for chaining.
       */
      public Builder setPartitionId(long value) {

        partitionId_ = value;
        bitField0_ |= 0x00000004;
        onChanged();
        return this;
      }
      /**
       * 
       * Partition identifier.
       * 
       *
       * int64 partition_id = 3;
       * @return This builder for chaining.
       */
      public Builder clearPartitionId() {
        bitField0_ = (bitField0_ & ~0x00000004);
        partitionId_ = 0L;
        onChanged();
        return this;
      }

      private boolean includeStats_ ;
      /**
       * 
       * Include partition statistics.
       * 
       *
       * bool include_stats = 4;
       * @return The includeStats.
       */
      @java.lang.Override
      public boolean getIncludeStats() {
        return includeStats_;
      }
      /**
       * 
       * Include partition statistics.
       * 
       *
       * bool include_stats = 4;
       * @param value The includeStats to set.
       * @return This builder for chaining.
       */
      public Builder setIncludeStats(boolean value) {

        includeStats_ = value;
        bitField0_ |= 0x00000008;
        onChanged();
        return this;
      }
      /**
       * 
       * Include partition statistics.
       * 
       *
       * bool include_stats = 4;
       * @return This builder for chaining.
       */
      public Builder clearIncludeStats() {
        bitField0_ = (bitField0_ & ~0x00000008);
        includeStats_ = false;
        onChanged();
        return this;
      }

      private boolean includeLocation_ ;
      /**
       * 
       * Include partition location.
       * 
       *
       * bool include_location = 5;
       * @return The includeLocation.
       */
      @java.lang.Override
      public boolean getIncludeLocation() {
        return includeLocation_;
      }
      /**
       * 
       * Include partition location.
       * 
       *
       * bool include_location = 5;
       * @param value The includeLocation to set.
       * @return This builder for chaining.
       */
      public Builder setIncludeLocation(boolean value) {

        includeLocation_ = value;
        bitField0_ |= 0x00000010;
        onChanged();
        return this;
      }
      /**
       * 
       * Include partition location.
       * 
       *
       * bool include_location = 5;
       * @return This builder for chaining.
       */
      public Builder clearIncludeLocation() {
        bitField0_ = (bitField0_ & ~0x00000010);
        includeLocation_ = false;
        onChanged();
        return this;
      }
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      public final Builder setUnknownFields(
          final com.google.protobuf.UnknownFieldSet unknownFields) {
        return super.setUnknownFields(unknownFields);
      }

      @java.lang.Override
      public final Builder mergeUnknownFields(
          final com.google.protobuf.UnknownFieldSet unknownFields) {
        return super.mergeUnknownFields(unknownFields);
      }


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     * 
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     * 
     *
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     * 
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     *
     * .Ydb.Operations.Operation operation = 1;
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     * 
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     * 
     *
     * .Ydb.Operations.Operation operation = 1;
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    tech.ydb.proto.OperationProtos.OperationOrBuilder getOperationOrBuilder();
  }
  /**
   * 
   * Describe partition response sent from server to client.
   * If topic is not existed then response status will be "SCHEME_ERROR".
   * 
   *
   * Protobuf type {@code Ydb.Topic.DescribePartitionResponse}
   */
  public static final class DescribePartitionResponse extends
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      // @@protoc_insertion_point(message_implements:Ydb.Topic.DescribePartitionResponse)
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    private DescribePartitionResponse(com.google.protobuf.GeneratedMessageV3.Builder builder) {
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     * 
     * Describe partition response sent from server to client.
     * If topic is not existed then response status will be "SCHEME_ERROR".
     * 
     *
     * Protobuf type {@code Ydb.Topic.DescribePartitionResponse}
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      }

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      public final Builder mergeUnknownFields(
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    // @@protoc_insertion_point(class_scope:Ydb.Topic.DescribePartitionResponse)
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    @java.lang.Override
    public tech.ydb.proto.topic.YdbTopic.DescribePartitionResponse getDefaultInstanceForType() {
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    }

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  public interface DescribePartitionResultOrBuilder extends
      // @@protoc_insertion_point(interface_extends:Ydb.Topic.DescribePartitionResult)
      com.google.protobuf.MessageOrBuilder {

    /**
     * 
     * Partitions description.
     * 
     *
     * .Ydb.Topic.DescribeTopicResult.PartitionInfo partition = 1;
     * @return Whether the partition field is set.
     */
    boolean hasPartition();
    /**
     * 
     * Partitions description.
     * 
     *
     * .Ydb.Topic.DescribeTopicResult.PartitionInfo partition = 1;
     * @return The partition.
     */
    tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo getPartition();
    /**
     * 
     * Partitions description.
     * 
     *
     * .Ydb.Topic.DescribeTopicResult.PartitionInfo partition = 1;
     */
    tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfoOrBuilder getPartitionOrBuilder();
  }
  /**
   * 
   * Describe partition result message that will be inside DescribeTopicResponse.operation.
   * 
   *
   * Protobuf type {@code Ydb.Topic.DescribePartitionResult}
   */
  public static final class DescribePartitionResult extends
      com.google.protobuf.GeneratedMessageV3 implements
      // @@protoc_insertion_point(message_implements:Ydb.Topic.DescribePartitionResult)
      DescribePartitionResultOrBuilder {
  private static final long serialVersionUID = 0L;
    // Use DescribePartitionResult.newBuilder() to construct.
    private DescribePartitionResult(com.google.protobuf.GeneratedMessageV3.Builder builder) {
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    }
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    @java.lang.Override
    @SuppressWarnings({"unused"})
    protected java.lang.Object newInstance(
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    public static final com.google.protobuf.Descriptors.Descriptor
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    }

    @java.lang.Override
    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
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    /**
     * 
     * Partitions description.
     * 
     *
     * .Ydb.Topic.DescribeTopicResult.PartitionInfo partition = 1;
     * @return Whether the partition field is set.
     */
    @java.lang.Override
    public boolean hasPartition() {
      return ((bitField0_ & 0x00000001) != 0);
    }
    /**
     * 
     * Partitions description.
     * 
     *
     * .Ydb.Topic.DescribeTopicResult.PartitionInfo partition = 1;
     * @return The partition.
     */
    @java.lang.Override
    public tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo getPartition() {
      return partition_ == null ? tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo.getDefaultInstance() : partition_;
    }
    /**
     * 
     * Partitions description.
     * 
     *
     * .Ydb.Topic.DescribeTopicResult.PartitionInfo partition = 1;
     */
    @java.lang.Override
    public tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfoOrBuilder getPartitionOrBuilder() {
      return partition_ == null ? tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo.getDefaultInstance() : partition_;
    }

    private byte memoizedIsInitialized = -1;
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      memoizedIsInitialized = 1;
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    @java.lang.Override
    public void writeTo(com.google.protobuf.CodedOutputStream output)
                        throws java.io.IOException {
      if (((bitField0_ & 0x00000001) != 0)) {
        output.writeMessage(1, getPartition());
      }
      getUnknownFields().writeTo(output);
    }

    @java.lang.Override
    public int getSerializedSize() {
      int size = memoizedSize;
      if (size != -1) return size;

      size = 0;
      if (((bitField0_ & 0x00000001) != 0)) {
        size += com.google.protobuf.CodedOutputStream
          .computeMessageSize(1, getPartition());
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      size += getUnknownFields().getSerializedSize();
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    @java.lang.Override
    public boolean equals(final java.lang.Object obj) {
      if (obj == this) {
       return true;
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      if (!(obj instanceof tech.ydb.proto.topic.YdbTopic.DescribePartitionResult)) {
        return super.equals(obj);
      }
      tech.ydb.proto.topic.YdbTopic.DescribePartitionResult other = (tech.ydb.proto.topic.YdbTopic.DescribePartitionResult) obj;

      if (hasPartition() != other.hasPartition()) return false;
      if (hasPartition()) {
        if (!getPartition()
            .equals(other.getPartition())) return false;
      }
      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
      return true;
    }

    @java.lang.Override
    public int hashCode() {
      if (memoizedHashCode != 0) {
        return memoizedHashCode;
      }
      int hash = 41;
      hash = (19 * hash) + getDescriptor().hashCode();
      if (hasPartition()) {
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        hash = (53 * hash) + getPartition().hashCode();
      }
      hash = (29 * hash) + getUnknownFields().hashCode();
      memoizedHashCode = hash;
      return hash;
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    public static tech.ydb.proto.topic.YdbTopic.DescribePartitionResult parseFrom(
        java.nio.ByteBuffer data)
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    public static tech.ydb.proto.topic.YdbTopic.DescribePartitionResult parseFrom(
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        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
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    public static tech.ydb.proto.topic.YdbTopic.DescribePartitionResult parseFrom(
        com.google.protobuf.ByteString data)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data);
    }
    public static tech.ydb.proto.topic.YdbTopic.DescribePartitionResult parseFrom(
        com.google.protobuf.ByteString data,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data, extensionRegistry);
    }
    public static tech.ydb.proto.topic.YdbTopic.DescribePartitionResult parseFrom(byte[] data)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data);
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    public static tech.ydb.proto.topic.YdbTopic.DescribePartitionResult parseFrom(
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        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
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      return PARSER.parseFrom(data, extensionRegistry);
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    public static tech.ydb.proto.topic.YdbTopic.DescribePartitionResult parseFrom(java.io.InputStream input)
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    public static tech.ydb.proto.topic.YdbTopic.DescribePartitionResult parseFrom(
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        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
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      return com.google.protobuf.GeneratedMessageV3
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    public static tech.ydb.proto.topic.YdbTopic.DescribePartitionResult parseDelimitedFrom(java.io.InputStream input)
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    public static tech.ydb.proto.topic.YdbTopic.DescribePartitionResult parseFrom(
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    public static tech.ydb.proto.topic.YdbTopic.DescribePartitionResult parseFrom(
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        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws java.io.IOException {
      return com.google.protobuf.GeneratedMessageV3
          .parseWithIOException(PARSER, input, extensionRegistry);
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    @java.lang.Override
    public Builder newBuilderForType() { return newBuilder(); }
    public static Builder newBuilder() {
      return DEFAULT_INSTANCE.toBuilder();
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    public static Builder newBuilder(tech.ydb.proto.topic.YdbTopic.DescribePartitionResult prototype) {
      return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
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    @java.lang.Override
    public Builder toBuilder() {
      return this == DEFAULT_INSTANCE
          ? new Builder() : new Builder().mergeFrom(this);
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    @java.lang.Override
    protected Builder newBuilderForType(
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      Builder builder = new Builder(parent);
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    }
    /**
     * 
     * Describe partition result message that will be inside DescribeTopicResponse.operation.
     * 
     *
     * Protobuf type {@code Ydb.Topic.DescribePartitionResult}
     */
    public static final class Builder extends
        com.google.protobuf.GeneratedMessageV3.Builder implements
        // @@protoc_insertion_point(builder_implements:Ydb.Topic.DescribePartitionResult)
        tech.ydb.proto.topic.YdbTopic.DescribePartitionResultOrBuilder {
      public static final com.google.protobuf.Descriptors.Descriptor
          getDescriptor() {
        return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_DescribePartitionResult_descriptor;
      }

      @java.lang.Override
      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
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            .ensureFieldAccessorsInitialized(
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      // Construct using tech.ydb.proto.topic.YdbTopic.DescribePartitionResult.newBuilder()
      private Builder() {
        maybeForceBuilderInitialization();
      }

      private Builder(
          com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
        super(parent);
        maybeForceBuilderInitialization();
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      private void maybeForceBuilderInitialization() {
        if (com.google.protobuf.GeneratedMessageV3
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          getPartitionFieldBuilder();
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      public Builder clear() {
        super.clear();
        bitField0_ = 0;
        partition_ = null;
        if (partitionBuilder_ != null) {
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        return this;
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      @java.lang.Override
      public com.google.protobuf.Descriptors.Descriptor
          getDescriptorForType() {
        return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_DescribePartitionResult_descriptor;
      }

      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.DescribePartitionResult getDefaultInstanceForType() {
        return tech.ydb.proto.topic.YdbTopic.DescribePartitionResult.getDefaultInstance();
      }

      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.DescribePartitionResult build() {
        tech.ydb.proto.topic.YdbTopic.DescribePartitionResult result = buildPartial();
        if (!result.isInitialized()) {
          throw newUninitializedMessageException(result);
        }
        return result;
      }

      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.DescribePartitionResult buildPartial() {
        tech.ydb.proto.topic.YdbTopic.DescribePartitionResult result = new tech.ydb.proto.topic.YdbTopic.DescribePartitionResult(this);
        if (bitField0_ != 0) { buildPartial0(result); }
        onBuilt();
        return result;
      }

      private void buildPartial0(tech.ydb.proto.topic.YdbTopic.DescribePartitionResult result) {
        int from_bitField0_ = bitField0_;
        int to_bitField0_ = 0;
        if (((from_bitField0_ & 0x00000001) != 0)) {
          result.partition_ = partitionBuilder_ == null
              ? partition_
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          to_bitField0_ |= 0x00000001;
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        result.bitField0_ |= to_bitField0_;
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      @java.lang.Override
      public Builder setField(
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        return super.setField(field, value);
      }
      @java.lang.Override
      public Builder clearField(
          com.google.protobuf.Descriptors.FieldDescriptor field) {
        return super.clearField(field);
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      @java.lang.Override
      public Builder clearOneof(
          com.google.protobuf.Descriptors.OneofDescriptor oneof) {
        return super.clearOneof(oneof);
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      @java.lang.Override
      public Builder setRepeatedField(
          com.google.protobuf.Descriptors.FieldDescriptor field,
          int index, java.lang.Object value) {
        return super.setRepeatedField(field, index, value);
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      @java.lang.Override
      public Builder addRepeatedField(
          com.google.protobuf.Descriptors.FieldDescriptor field,
          java.lang.Object value) {
        return super.addRepeatedField(field, value);
      }
      @java.lang.Override
      public Builder mergeFrom(com.google.protobuf.Message other) {
        if (other instanceof tech.ydb.proto.topic.YdbTopic.DescribePartitionResult) {
          return mergeFrom((tech.ydb.proto.topic.YdbTopic.DescribePartitionResult)other);
        } else {
          super.mergeFrom(other);
          return this;
        }
      }

      public Builder mergeFrom(tech.ydb.proto.topic.YdbTopic.DescribePartitionResult other) {
        if (other == tech.ydb.proto.topic.YdbTopic.DescribePartitionResult.getDefaultInstance()) return this;
        if (other.hasPartition()) {
          mergePartition(other.getPartition());
        }
        this.mergeUnknownFields(other.getUnknownFields());
        onChanged();
        return this;
      }

      @java.lang.Override
      public final boolean isInitialized() {
        return true;
      }

      @java.lang.Override
      public Builder mergeFrom(
          com.google.protobuf.CodedInputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws java.io.IOException {
        if (extensionRegistry == null) {
          throw new java.lang.NullPointerException();
        }
        try {
          boolean done = false;
          while (!done) {
            int tag = input.readTag();
            switch (tag) {
              case 0:
                done = true;
                break;
              case 10: {
                input.readMessage(
                    getPartitionFieldBuilder().getBuilder(),
                    extensionRegistry);
                bitField0_ |= 0x00000001;
                break;
              } // case 10
              default: {
                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
                  done = true; // was an endgroup tag
                }
                break;
              } // default:
            } // switch (tag)
          } // while (!done)
        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
          throw e.unwrapIOException();
        } finally {
          onChanged();
        } // finally
        return this;
      }
      private int bitField0_;

      private tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo partition_;
      private com.google.protobuf.SingleFieldBuilderV3<
          tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo, tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo.Builder, tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfoOrBuilder> partitionBuilder_;
      /**
       * 
       * Partitions description.
       * 
       *
       * .Ydb.Topic.DescribeTopicResult.PartitionInfo partition = 1;
       * @return Whether the partition field is set.
       */
      public boolean hasPartition() {
        return ((bitField0_ & 0x00000001) != 0);
      }
      /**
       * 
       * Partitions description.
       * 
       *
       * .Ydb.Topic.DescribeTopicResult.PartitionInfo partition = 1;
       * @return The partition.
       */
      public tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo getPartition() {
        if (partitionBuilder_ == null) {
          return partition_ == null ? tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo.getDefaultInstance() : partition_;
        } else {
          return partitionBuilder_.getMessage();
        }
      }
      /**
       * 
       * Partitions description.
       * 
       *
       * .Ydb.Topic.DescribeTopicResult.PartitionInfo partition = 1;
       */
      public Builder setPartition(tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo value) {
        if (partitionBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          partition_ = value;
        } else {
          partitionBuilder_.setMessage(value);
        }
        bitField0_ |= 0x00000001;
        onChanged();
        return this;
      }
      /**
       * 
       * Partitions description.
       * 
       *
       * .Ydb.Topic.DescribeTopicResult.PartitionInfo partition = 1;
       */
      public Builder setPartition(
          tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo.Builder builderForValue) {
        if (partitionBuilder_ == null) {
          partition_ = builderForValue.build();
        } else {
          partitionBuilder_.setMessage(builderForValue.build());
        }
        bitField0_ |= 0x00000001;
        onChanged();
        return this;
      }
      /**
       * 
       * Partitions description.
       * 
       *
       * .Ydb.Topic.DescribeTopicResult.PartitionInfo partition = 1;
       */
      public Builder mergePartition(tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo value) {
        if (partitionBuilder_ == null) {
          if (((bitField0_ & 0x00000001) != 0) &&
            partition_ != null &&
            partition_ != tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo.getDefaultInstance()) {
            getPartitionBuilder().mergeFrom(value);
          } else {
            partition_ = value;
          }
        } else {
          partitionBuilder_.mergeFrom(value);
        }
        if (partition_ != null) {
          bitField0_ |= 0x00000001;
          onChanged();
        }
        return this;
      }
      /**
       * 
       * Partitions description.
       * 
       *
       * .Ydb.Topic.DescribeTopicResult.PartitionInfo partition = 1;
       */
      public Builder clearPartition() {
        bitField0_ = (bitField0_ & ~0x00000001);
        partition_ = null;
        if (partitionBuilder_ != null) {
          partitionBuilder_.dispose();
          partitionBuilder_ = null;
        }
        onChanged();
        return this;
      }
      /**
       * 
       * Partitions description.
       * 
       *
       * .Ydb.Topic.DescribeTopicResult.PartitionInfo partition = 1;
       */
      public tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo.Builder getPartitionBuilder() {
        bitField0_ |= 0x00000001;
        onChanged();
        return getPartitionFieldBuilder().getBuilder();
      }
      /**
       * 
       * Partitions description.
       * 
       *
       * .Ydb.Topic.DescribeTopicResult.PartitionInfo partition = 1;
       */
      public tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfoOrBuilder getPartitionOrBuilder() {
        if (partitionBuilder_ != null) {
          return partitionBuilder_.getMessageOrBuilder();
        } else {
          return partition_ == null ?
              tech.ydb.proto.topic.YdbTopic.DescribeTopicResult.PartitionInfo.getDefaultInstance() : partition_;
        }
      }
      /**
       * 
       * Partitions description.
       * 
       *
       * .Ydb.Topic.DescribeTopicResult.PartitionInfo partition = 1;
       */
      private com.google.protobuf.SingleFieldBuilderV3<
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          getPartitionFieldBuilder() {
        if (partitionBuilder_ == null) {
          partitionBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
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                  getParentForChildren(),
                  isClean());
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      }
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      public final Builder setUnknownFields(
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        return super.setUnknownFields(unknownFields);
      }

      @java.lang.Override
      public final Builder mergeUnknownFields(
          final com.google.protobuf.UnknownFieldSet unknownFields) {
        return super.mergeUnknownFields(unknownFields);
      }


      // @@protoc_insertion_point(builder_scope:Ydb.Topic.DescribePartitionResult)
    }

    // @@protoc_insertion_point(class_scope:Ydb.Topic.DescribePartitionResult)
    private static final tech.ydb.proto.topic.YdbTopic.DescribePartitionResult DEFAULT_INSTANCE;
    static {
      DEFAULT_INSTANCE = new tech.ydb.proto.topic.YdbTopic.DescribePartitionResult();
    }

    public static tech.ydb.proto.topic.YdbTopic.DescribePartitionResult getDefaultInstance() {
      return DEFAULT_INSTANCE;
    }

    private static final com.google.protobuf.Parser
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      public DescribePartitionResult parsePartialFrom(
          com.google.protobuf.CodedInputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        Builder builder = newBuilder();
        try {
          builder.mergeFrom(input, extensionRegistry);
        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
          throw e.setUnfinishedMessage(builder.buildPartial());
        } catch (com.google.protobuf.UninitializedMessageException e) {
          throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
        } catch (java.io.IOException e) {
          throw new com.google.protobuf.InvalidProtocolBufferException(e)
              .setUnfinishedMessage(builder.buildPartial());
        }
        return builder.buildPartial();
      }
    };

    public static com.google.protobuf.Parser parser() {
      return PARSER;
    }

    @java.lang.Override
    public com.google.protobuf.Parser getParserForType() {
      return PARSER;
    }

    @java.lang.Override
    public tech.ydb.proto.topic.YdbTopic.DescribePartitionResult getDefaultInstanceForType() {
      return DEFAULT_INSTANCE;
    }

  }

  public interface DescribeConsumerRequestOrBuilder extends
      // @@protoc_insertion_point(interface_extends:Ydb.Topic.DescribeConsumerRequest)
      com.google.protobuf.MessageOrBuilder {

    /**
     * .Ydb.Operations.OperationParams operation_params = 1;
     * @return Whether the operationParams field is set.
     */
    boolean hasOperationParams();
    /**
     * .Ydb.Operations.OperationParams operation_params = 1;
     * @return The operationParams.
     */
    tech.ydb.proto.OperationProtos.OperationParams getOperationParams();
    /**
     * .Ydb.Operations.OperationParams operation_params = 1;
     */
    tech.ydb.proto.OperationProtos.OperationParamsOrBuilder getOperationParamsOrBuilder();

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        return getOperationParamsFieldBuilder().getBuilder();
      }
      /**
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      /**
       * .Ydb.Operations.OperationParams operation_params = 1;
       */
      private com.google.protobuf.SingleFieldBuilderV3<
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        return operationParamsBuilder_;
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      private java.lang.Object path_ = "";
      /**
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       *
       * string path = 2;
       * @return The path.
       */
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        if (!(ref instanceof java.lang.String)) {
          com.google.protobuf.ByteString bs =
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          java.lang.String s = bs.toStringUtf8();
          path_ = s;
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        } else {
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        }
      }
      /**
       * 
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       * 
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       * string path = 2;
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          path_ = b;
          return b;
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          return (com.google.protobuf.ByteString) ref;
        }
      }
      /**
       * 
       * Topic path.
       * 
       *
       * string path = 2;
       * @param value The path to set.
       * @return This builder for chaining.
       */
      public Builder setPath(
          java.lang.String value) {
        if (value == null) { throw new NullPointerException(); }
        path_ = value;
        bitField0_ |= 0x00000002;
        onChanged();
        return this;
      }
      /**
       * 
       * Topic path.
       * 
       *
       * string path = 2;
       * @return This builder for chaining.
       */
      public Builder clearPath() {
        path_ = getDefaultInstance().getPath();
        bitField0_ = (bitField0_ & ~0x00000002);
        onChanged();
        return this;
      }
      /**
       * 
       * Topic path.
       * 
       *
       * string path = 2;
       * @param value The bytes for path to set.
       * @return This builder for chaining.
       */
      public Builder setPathBytes(
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        if (value == null) { throw new NullPointerException(); }
        checkByteStringIsUtf8(value);
        path_ = value;
        bitField0_ |= 0x00000002;
        onChanged();
        return this;
      }

      private java.lang.Object consumer_ = "";
      /**
       * 
       * Consumer name;
       * 
       *
       * string consumer = 3;
       * @return The consumer.
       */
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          com.google.protobuf.ByteString bs =
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          java.lang.String s = bs.toStringUtf8();
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       * 
       * Consumer name;
       * 
       *
       * string consumer = 3;
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       */
      public com.google.protobuf.ByteString
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        java.lang.Object ref = consumer_;
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          com.google.protobuf.ByteString b = 
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          return b;
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       * 
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      /**
       * 
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       * string consumer = 3;
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        consumer_ = getDefaultInstance().getConsumer();
        bitField0_ = (bitField0_ & ~0x00000004);
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      /**
       * 
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       * 
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       * string consumer = 3;
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       */
      public Builder setConsumerBytes(
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        if (value == null) { throw new NullPointerException(); }
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        bitField0_ |= 0x00000004;
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      private boolean includeStats_ ;
      /**
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      public boolean getIncludeStats() {
        return includeStats_;
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      public Builder setIncludeStats(boolean value) {

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       * @return This builder for chaining.
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     * 
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     * 
     *
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     */
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    /**
     * 
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     *
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     *
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  /**
   * 
   * Describe topic's consumer response sent from server to client.
   * If topic is not existed then response status will be "SCHEME_ERROR".
   * 
   *
   * Protobuf type {@code Ydb.Topic.DescribeConsumerResponse}
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  public static final class DescribeConsumerResponse extends
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      private int bitField0_;

      private tech.ydb.proto.OperationProtos.Operation operation_;
      private com.google.protobuf.SingleFieldBuilderV3<
          tech.ydb.proto.OperationProtos.Operation, tech.ydb.proto.OperationProtos.Operation.Builder, tech.ydb.proto.OperationProtos.OperationOrBuilder> operationBuilder_;
      /**
       * 
       * Result of request will be inside operation.
       * 
       *
       * .Ydb.Operations.Operation operation = 1;
       * @return Whether the operation field is set.
       */
      public boolean hasOperation() {
        return ((bitField0_ & 0x00000001) != 0);
      }
      /**
       * 
       * Result of request will be inside operation.
       * 
       *
       * .Ydb.Operations.Operation operation = 1;
       * @return The operation.
       */
      public tech.ydb.proto.OperationProtos.Operation getOperation() {
        if (operationBuilder_ == null) {
          return operation_ == null ? tech.ydb.proto.OperationProtos.Operation.getDefaultInstance() : operation_;
        } else {
          return operationBuilder_.getMessage();
        }
      }
      /**
       * 
       * Result of request will be inside operation.
       * 
       *
       * .Ydb.Operations.Operation operation = 1;
       */
      public Builder setOperation(tech.ydb.proto.OperationProtos.Operation value) {
        if (operationBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          operation_ = value;
        } else {
          operationBuilder_.setMessage(value);
        }
        bitField0_ |= 0x00000001;
        onChanged();
        return this;
      }
      /**
       * 
       * Result of request will be inside operation.
       * 
       *
       * .Ydb.Operations.Operation operation = 1;
       */
      public Builder setOperation(
          tech.ydb.proto.OperationProtos.Operation.Builder builderForValue) {
        if (operationBuilder_ == null) {
          operation_ = builderForValue.build();
        } else {
          operationBuilder_.setMessage(builderForValue.build());
        }
        bitField0_ |= 0x00000001;
        onChanged();
        return this;
      }
      /**
       * 
       * Result of request will be inside operation.
       * 
       *
       * .Ydb.Operations.Operation operation = 1;
       */
      public Builder mergeOperation(tech.ydb.proto.OperationProtos.Operation value) {
        if (operationBuilder_ == null) {
          if (((bitField0_ & 0x00000001) != 0) &&
            operation_ != null &&
            operation_ != tech.ydb.proto.OperationProtos.Operation.getDefaultInstance()) {
            getOperationBuilder().mergeFrom(value);
          } else {
            operation_ = value;
          }
        } else {
          operationBuilder_.mergeFrom(value);
        }
        if (operation_ != null) {
          bitField0_ |= 0x00000001;
          onChanged();
        }
        return this;
      }
      /**
       * 
       * Result of request will be inside operation.
       * 
       *
       * .Ydb.Operations.Operation operation = 1;
       */
      public Builder clearOperation() {
        bitField0_ = (bitField0_ & ~0x00000001);
        operation_ = null;
        if (operationBuilder_ != null) {
          operationBuilder_.dispose();
          operationBuilder_ = null;
        }
        onChanged();
        return this;
      }
      /**
       * 
       * Result of request will be inside operation.
       * 
       *
       * .Ydb.Operations.Operation operation = 1;
       */
      public tech.ydb.proto.OperationProtos.Operation.Builder getOperationBuilder() {
        bitField0_ |= 0x00000001;
        onChanged();
        return getOperationFieldBuilder().getBuilder();
      }
      /**
       * 
       * Result of request will be inside operation.
       * 
       *
       * .Ydb.Operations.Operation operation = 1;
       */
      public tech.ydb.proto.OperationProtos.OperationOrBuilder getOperationOrBuilder() {
        if (operationBuilder_ != null) {
          return operationBuilder_.getMessageOrBuilder();
        } else {
          return operation_ == null ?
              tech.ydb.proto.OperationProtos.Operation.getDefaultInstance() : operation_;
        }
      }
      /**
       * 
       * Result of request will be inside operation.
       * 
       *
       * .Ydb.Operations.Operation operation = 1;
       */
      private com.google.protobuf.SingleFieldBuilderV3<
          tech.ydb.proto.OperationProtos.Operation, tech.ydb.proto.OperationProtos.Operation.Builder, tech.ydb.proto.OperationProtos.OperationOrBuilder> 
          getOperationFieldBuilder() {
        if (operationBuilder_ == null) {
          operationBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
              tech.ydb.proto.OperationProtos.Operation, tech.ydb.proto.OperationProtos.Operation.Builder, tech.ydb.proto.OperationProtos.OperationOrBuilder>(
                  getOperation(),
                  getParentForChildren(),
                  isClean());
          operation_ = null;
        }
        return operationBuilder_;
      }
      @java.lang.Override
      public final Builder setUnknownFields(
          final com.google.protobuf.UnknownFieldSet unknownFields) {
        return super.setUnknownFields(unknownFields);
      }

      @java.lang.Override
      public final Builder mergeUnknownFields(
          final com.google.protobuf.UnknownFieldSet unknownFields) {
        return super.mergeUnknownFields(unknownFields);
      }


      // @@protoc_insertion_point(builder_scope:Ydb.Topic.DescribeConsumerResponse)
    }

    // @@protoc_insertion_point(class_scope:Ydb.Topic.DescribeConsumerResponse)
    private static final tech.ydb.proto.topic.YdbTopic.DescribeConsumerResponse DEFAULT_INSTANCE;
    static {
      DEFAULT_INSTANCE = new tech.ydb.proto.topic.YdbTopic.DescribeConsumerResponse();
    }

    public static tech.ydb.proto.topic.YdbTopic.DescribeConsumerResponse getDefaultInstance() {
      return DEFAULT_INSTANCE;
    }

    private static final com.google.protobuf.Parser
        PARSER = new com.google.protobuf.AbstractParser() {
      @java.lang.Override
      public DescribeConsumerResponse parsePartialFrom(
          com.google.protobuf.CodedInputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        Builder builder = newBuilder();
        try {
          builder.mergeFrom(input, extensionRegistry);
        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
          throw e.setUnfinishedMessage(builder.buildPartial());
        } catch (com.google.protobuf.UninitializedMessageException e) {
          throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
        } catch (java.io.IOException e) {
          throw new com.google.protobuf.InvalidProtocolBufferException(e)
              .setUnfinishedMessage(builder.buildPartial());
        }
        return builder.buildPartial();
      }
    };

    public static com.google.protobuf.Parser parser() {
      return PARSER;
    }

    @java.lang.Override
    public com.google.protobuf.Parser getParserForType() {
      return PARSER;
    }

    @java.lang.Override
    public tech.ydb.proto.topic.YdbTopic.DescribeConsumerResponse getDefaultInstanceForType() {
      return DEFAULT_INSTANCE;
    }

  }

  public interface DescribeConsumerResultOrBuilder extends
      // @@protoc_insertion_point(interface_extends:Ydb.Topic.DescribeConsumerResult)
      com.google.protobuf.MessageOrBuilder {

    /**
     * 
     * Description of scheme object.
     * 
     *
     * .Ydb.Scheme.Entry self = 1;
     * @return Whether the self field is set.
     */
    boolean hasSelf();
    /**
     * 
     * Description of scheme object.
     * 
     *
     * .Ydb.Scheme.Entry self = 1;
     * @return The self.
     */
    tech.ydb.proto.scheme.SchemeOperationProtos.Entry getSelf();
    /**
     * 
     * Description of scheme object.
     * 
     *
     * .Ydb.Scheme.Entry self = 1;
     */
    tech.ydb.proto.scheme.SchemeOperationProtos.EntryOrBuilder getSelfOrBuilder();

    /**
     * .Ydb.Topic.Consumer consumer = 2;
     * @return Whether the consumer field is set.
     */
    boolean hasConsumer();
    /**
     * .Ydb.Topic.Consumer consumer = 2;
     * @return The consumer.
     */
    tech.ydb.proto.topic.YdbTopic.Consumer getConsumer();
    /**
     * .Ydb.Topic.Consumer consumer = 2;
     */
    tech.ydb.proto.topic.YdbTopic.ConsumerOrBuilder getConsumerOrBuilder();

    /**
     * repeated .Ydb.Topic.DescribeConsumerResult.PartitionInfo partitions = 3;
     */
    java.util.List 
        getPartitionsList();
    /**
     * repeated .Ydb.Topic.DescribeConsumerResult.PartitionInfo partitions = 3;
     */
    tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionInfo getPartitions(int index);
    /**
     * repeated .Ydb.Topic.DescribeConsumerResult.PartitionInfo partitions = 3;
     */
    int getPartitionsCount();
    /**
     * repeated .Ydb.Topic.DescribeConsumerResult.PartitionInfo partitions = 3;
     */
    java.util.List 
        getPartitionsOrBuilderList();
    /**
     * repeated .Ydb.Topic.DescribeConsumerResult.PartitionInfo partitions = 3;
     */
    tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionInfoOrBuilder getPartitionsOrBuilder(
        int index);
  }
  /**
   * 
   * Describe topic's consumer result message that will be inside DescribeConsumerResponse.operation.
   * 
   *
   * Protobuf type {@code Ydb.Topic.DescribeConsumerResult}
   */
  public static final class DescribeConsumerResult extends
      com.google.protobuf.GeneratedMessageV3 implements
      // @@protoc_insertion_point(message_implements:Ydb.Topic.DescribeConsumerResult)
      DescribeConsumerResultOrBuilder {
  private static final long serialVersionUID = 0L;
    // Use DescribeConsumerResult.newBuilder() to construct.
    private DescribeConsumerResult(com.google.protobuf.GeneratedMessageV3.Builder builder) {
      super(builder);
    }
    private DescribeConsumerResult() {
      partitions_ = java.util.Collections.emptyList();
    }

    @java.lang.Override
    @SuppressWarnings({"unused"})
    protected java.lang.Object newInstance(
        UnusedPrivateParameter unused) {
      return new DescribeConsumerResult();
    }

    public static final com.google.protobuf.Descriptors.Descriptor
        getDescriptor() {
      return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_DescribeConsumerResult_descriptor;
    }

    @java.lang.Override
    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
        internalGetFieldAccessorTable() {
      return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_DescribeConsumerResult_fieldAccessorTable
          .ensureFieldAccessorsInitialized(
              tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.class, tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.Builder.class);
    }

    public interface PartitionInfoOrBuilder extends
        // @@protoc_insertion_point(interface_extends:Ydb.Topic.DescribeConsumerResult.PartitionInfo)
        com.google.protobuf.MessageOrBuilder {

      /**
       * 
       * Partition identifier.
       * 
       *
       * int64 partition_id = 1;
       * @return The partitionId.
       */
      long getPartitionId();

      /**
       * 
       * Is partition open for write.
       * 
       *
       * bool active = 2;
       * @return The active.
       */
      boolean getActive();

      /**
       * 
       * Ids of partitions which was formed when this partition was split or merged.
       * 
       *
       * repeated int64 child_partition_ids = 3;
       * @return A list containing the childPartitionIds.
       */
      java.util.List getChildPartitionIdsList();
      /**
       * 
       * Ids of partitions which was formed when this partition was split or merged.
       * 
       *
       * repeated int64 child_partition_ids = 3;
       * @return The count of childPartitionIds.
       */
      int getChildPartitionIdsCount();
      /**
       * 
       * Ids of partitions which was formed when this partition was split or merged.
       * 
       *
       * repeated int64 child_partition_ids = 3;
       * @param index The index of the element to return.
       * @return The childPartitionIds at the given index.
       */
      long getChildPartitionIds(int index);

      /**
       * 
       * Ids of partitions from which this partition was formed by split or merge.
       * 
       *
       * repeated int64 parent_partition_ids = 4;
       * @return A list containing the parentPartitionIds.
       */
      java.util.List getParentPartitionIdsList();
      /**
       * 
       * Ids of partitions from which this partition was formed by split or merge.
       * 
       *
       * repeated int64 parent_partition_ids = 4;
       * @return The count of parentPartitionIds.
       */
      int getParentPartitionIdsCount();
      /**
       * 
       * Ids of partitions from which this partition was formed by split or merge.
       * 
       *
       * repeated int64 parent_partition_ids = 4;
       * @param index The index of the element to return.
       * @return The parentPartitionIds at the given index.
       */
      long getParentPartitionIds(int index);

      /**
       * 
       * Stats for partition, filled only when include_stats in request is true.
       * 
       *
       * .Ydb.Topic.PartitionStats partition_stats = 5;
       * @return Whether the partitionStats field is set.
       */
      boolean hasPartitionStats();
      /**
       * 
       * Stats for partition, filled only when include_stats in request is true.
       * 
       *
       * .Ydb.Topic.PartitionStats partition_stats = 5;
       * @return The partitionStats.
       */
      tech.ydb.proto.topic.YdbTopic.PartitionStats getPartitionStats();
      /**
       * 
       * Stats for partition, filled only when include_stats in request is true.
       * 
       *
       * .Ydb.Topic.PartitionStats partition_stats = 5;
       */
      tech.ydb.proto.topic.YdbTopic.PartitionStatsOrBuilder getPartitionStatsOrBuilder();

      /**
       * 
       * Stats for consumer of this partition, filled only when include_stats in request is true.
       * 
       *
       * .Ydb.Topic.DescribeConsumerResult.PartitionConsumerStats partition_consumer_stats = 6;
       * @return Whether the partitionConsumerStats field is set.
       */
      boolean hasPartitionConsumerStats();
      /**
       * 
       * Stats for consumer of this partition, filled only when include_stats in request is true.
       * 
       *
       * .Ydb.Topic.DescribeConsumerResult.PartitionConsumerStats partition_consumer_stats = 6;
       * @return The partitionConsumerStats.
       */
      tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionConsumerStats getPartitionConsumerStats();
      /**
       * 
       * Stats for consumer of this partition, filled only when include_stats in request is true.
       * 
       *
       * .Ydb.Topic.DescribeConsumerResult.PartitionConsumerStats partition_consumer_stats = 6;
       */
      tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionConsumerStatsOrBuilder getPartitionConsumerStatsOrBuilder();

      /**
       * 
       * Partition location, filled only when include_location in request is true.
       * 
       *
       * .Ydb.Topic.PartitionLocation partition_location = 7;
       * @return Whether the partitionLocation field is set.
       */
      boolean hasPartitionLocation();
      /**
       * 
       * Partition location, filled only when include_location in request is true.
       * 
       *
       * .Ydb.Topic.PartitionLocation partition_location = 7;
       * @return The partitionLocation.
       */
      tech.ydb.proto.topic.YdbTopic.PartitionLocation getPartitionLocation();
      /**
       * 
       * Partition location, filled only when include_location in request is true.
       * 
       *
       * .Ydb.Topic.PartitionLocation partition_location = 7;
       */
      tech.ydb.proto.topic.YdbTopic.PartitionLocationOrBuilder getPartitionLocationOrBuilder();
    }
    /**
     * Protobuf type {@code Ydb.Topic.DescribeConsumerResult.PartitionInfo}
     */
    public static final class PartitionInfo extends
        com.google.protobuf.GeneratedMessageV3 implements
        // @@protoc_insertion_point(message_implements:Ydb.Topic.DescribeConsumerResult.PartitionInfo)
        PartitionInfoOrBuilder {
    private static final long serialVersionUID = 0L;
      // Use PartitionInfo.newBuilder() to construct.
      private PartitionInfo(com.google.protobuf.GeneratedMessageV3.Builder builder) {
        super(builder);
      }
      private PartitionInfo() {
        childPartitionIds_ = emptyLongList();
        parentPartitionIds_ = emptyLongList();
      }

      @java.lang.Override
      @SuppressWarnings({"unused"})
      protected java.lang.Object newInstance(
          UnusedPrivateParameter unused) {
        return new PartitionInfo();
      }

      public static final com.google.protobuf.Descriptors.Descriptor
          getDescriptor() {
        return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_DescribeConsumerResult_PartitionInfo_descriptor;
      }

      @java.lang.Override
      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
          internalGetFieldAccessorTable() {
        return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_DescribeConsumerResult_PartitionInfo_fieldAccessorTable
            .ensureFieldAccessorsInitialized(
                tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionInfo.class, tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionInfo.Builder.class);
      }

      private int bitField0_;
      public static final int PARTITION_ID_FIELD_NUMBER = 1;
      private long partitionId_ = 0L;
      /**
       * 
       * Partition identifier.
       * 
       *
       * int64 partition_id = 1;
       * @return The partitionId.
       */
      @java.lang.Override
      public long getPartitionId() {
        return partitionId_;
      }

      public static final int ACTIVE_FIELD_NUMBER = 2;
      private boolean active_ = false;
      /**
       * 
       * Is partition open for write.
       * 
       *
       * bool active = 2;
       * @return The active.
       */
      @java.lang.Override
      public boolean getActive() {
        return active_;
      }

      public static final int CHILD_PARTITION_IDS_FIELD_NUMBER = 3;
      @SuppressWarnings("serial")
      private com.google.protobuf.Internal.LongList childPartitionIds_ =
          emptyLongList();
      /**
       * 
       * Ids of partitions which was formed when this partition was split or merged.
       * 
       *
       * repeated int64 child_partition_ids = 3;
       * @return A list containing the childPartitionIds.
       */
      @java.lang.Override
      public java.util.List
          getChildPartitionIdsList() {
        return childPartitionIds_;
      }
      /**
       * 
       * Ids of partitions which was formed when this partition was split or merged.
       * 
       *
       * repeated int64 child_partition_ids = 3;
       * @return The count of childPartitionIds.
       */
      public int getChildPartitionIdsCount() {
        return childPartitionIds_.size();
      }
      /**
       * 
       * Ids of partitions which was formed when this partition was split or merged.
       * 
       *
       * repeated int64 child_partition_ids = 3;
       * @param index The index of the element to return.
       * @return The childPartitionIds at the given index.
       */
      public long getChildPartitionIds(int index) {
        return childPartitionIds_.getLong(index);
      }
      private int childPartitionIdsMemoizedSerializedSize = -1;

      public static final int PARENT_PARTITION_IDS_FIELD_NUMBER = 4;
      @SuppressWarnings("serial")
      private com.google.protobuf.Internal.LongList parentPartitionIds_ =
          emptyLongList();
      /**
       * 
       * Ids of partitions from which this partition was formed by split or merge.
       * 
       *
       * repeated int64 parent_partition_ids = 4;
       * @return A list containing the parentPartitionIds.
       */
      @java.lang.Override
      public java.util.List
          getParentPartitionIdsList() {
        return parentPartitionIds_;
      }
      /**
       * 
       * Ids of partitions from which this partition was formed by split or merge.
       * 
       *
       * repeated int64 parent_partition_ids = 4;
       * @return The count of parentPartitionIds.
       */
      public int getParentPartitionIdsCount() {
        return parentPartitionIds_.size();
      }
      /**
       * 
       * Ids of partitions from which this partition was formed by split or merge.
       * 
       *
       * repeated int64 parent_partition_ids = 4;
       * @param index The index of the element to return.
       * @return The parentPartitionIds at the given index.
       */
      public long getParentPartitionIds(int index) {
        return parentPartitionIds_.getLong(index);
      }
      private int parentPartitionIdsMemoizedSerializedSize = -1;

      public static final int PARTITION_STATS_FIELD_NUMBER = 5;
      private tech.ydb.proto.topic.YdbTopic.PartitionStats partitionStats_;
      /**
       * 
       * Stats for partition, filled only when include_stats in request is true.
       * 
       *
       * .Ydb.Topic.PartitionStats partition_stats = 5;
       * @return Whether the partitionStats field is set.
       */
      @java.lang.Override
      public boolean hasPartitionStats() {
        return ((bitField0_ & 0x00000001) != 0);
      }
      /**
       * 
       * Stats for partition, filled only when include_stats in request is true.
       * 
       *
       * .Ydb.Topic.PartitionStats partition_stats = 5;
       * @return The partitionStats.
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.PartitionStats getPartitionStats() {
        return partitionStats_ == null ? tech.ydb.proto.topic.YdbTopic.PartitionStats.getDefaultInstance() : partitionStats_;
      }
      /**
       * 
       * Stats for partition, filled only when include_stats in request is true.
       * 
       *
       * .Ydb.Topic.PartitionStats partition_stats = 5;
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.PartitionStatsOrBuilder getPartitionStatsOrBuilder() {
        return partitionStats_ == null ? tech.ydb.proto.topic.YdbTopic.PartitionStats.getDefaultInstance() : partitionStats_;
      }

      public static final int PARTITION_CONSUMER_STATS_FIELD_NUMBER = 6;
      private tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionConsumerStats partitionConsumerStats_;
      /**
       * 
       * Stats for consumer of this partition, filled only when include_stats in request is true.
       * 
       *
       * .Ydb.Topic.DescribeConsumerResult.PartitionConsumerStats partition_consumer_stats = 6;
       * @return Whether the partitionConsumerStats field is set.
       */
      @java.lang.Override
      public boolean hasPartitionConsumerStats() {
        return ((bitField0_ & 0x00000002) != 0);
      }
      /**
       * 
       * Stats for consumer of this partition, filled only when include_stats in request is true.
       * 
       *
       * .Ydb.Topic.DescribeConsumerResult.PartitionConsumerStats partition_consumer_stats = 6;
       * @return The partitionConsumerStats.
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionConsumerStats getPartitionConsumerStats() {
        return partitionConsumerStats_ == null ? tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionConsumerStats.getDefaultInstance() : partitionConsumerStats_;
      }
      /**
       * 
       * Stats for consumer of this partition, filled only when include_stats in request is true.
       * 
       *
       * .Ydb.Topic.DescribeConsumerResult.PartitionConsumerStats partition_consumer_stats = 6;
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionConsumerStatsOrBuilder getPartitionConsumerStatsOrBuilder() {
        return partitionConsumerStats_ == null ? tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionConsumerStats.getDefaultInstance() : partitionConsumerStats_;
      }

      public static final int PARTITION_LOCATION_FIELD_NUMBER = 7;
      private tech.ydb.proto.topic.YdbTopic.PartitionLocation partitionLocation_;
      /**
       * 
       * Partition location, filled only when include_location in request is true.
       * 
       *
       * .Ydb.Topic.PartitionLocation partition_location = 7;
       * @return Whether the partitionLocation field is set.
       */
      @java.lang.Override
      public boolean hasPartitionLocation() {
        return ((bitField0_ & 0x00000004) != 0);
      }
      /**
       * 
       * Partition location, filled only when include_location in request is true.
       * 
       *
       * .Ydb.Topic.PartitionLocation partition_location = 7;
       * @return The partitionLocation.
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.PartitionLocation getPartitionLocation() {
        return partitionLocation_ == null ? tech.ydb.proto.topic.YdbTopic.PartitionLocation.getDefaultInstance() : partitionLocation_;
      }
      /**
       * 
       * Partition location, filled only when include_location in request is true.
       * 
       *
       * .Ydb.Topic.PartitionLocation partition_location = 7;
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.PartitionLocationOrBuilder getPartitionLocationOrBuilder() {
        return partitionLocation_ == null ? tech.ydb.proto.topic.YdbTopic.PartitionLocation.getDefaultInstance() : partitionLocation_;
      }

      private byte memoizedIsInitialized = -1;
      @java.lang.Override
      public final boolean isInitialized() {
        byte isInitialized = memoizedIsInitialized;
        if (isInitialized == 1) return true;
        if (isInitialized == 0) return false;

        memoizedIsInitialized = 1;
        return true;
      }

      @java.lang.Override
      public void writeTo(com.google.protobuf.CodedOutputStream output)
                          throws java.io.IOException {
        getSerializedSize();
        if (partitionId_ != 0L) {
          output.writeInt64(1, partitionId_);
        }
        if (active_ != false) {
          output.writeBool(2, active_);
        }
        if (getChildPartitionIdsList().size() > 0) {
          output.writeUInt32NoTag(26);
          output.writeUInt32NoTag(childPartitionIdsMemoizedSerializedSize);
        }
        for (int i = 0; i < childPartitionIds_.size(); i++) {
          output.writeInt64NoTag(childPartitionIds_.getLong(i));
        }
        if (getParentPartitionIdsList().size() > 0) {
          output.writeUInt32NoTag(34);
          output.writeUInt32NoTag(parentPartitionIdsMemoizedSerializedSize);
        }
        for (int i = 0; i < parentPartitionIds_.size(); i++) {
          output.writeInt64NoTag(parentPartitionIds_.getLong(i));
        }
        if (((bitField0_ & 0x00000001) != 0)) {
          output.writeMessage(5, getPartitionStats());
        }
        if (((bitField0_ & 0x00000002) != 0)) {
          output.writeMessage(6, getPartitionConsumerStats());
        }
        if (((bitField0_ & 0x00000004) != 0)) {
          output.writeMessage(7, getPartitionLocation());
        }
        getUnknownFields().writeTo(output);
      }

      @java.lang.Override
      public int getSerializedSize() {
        int size = memoizedSize;
        if (size != -1) return size;

        size = 0;
        if (partitionId_ != 0L) {
          size += com.google.protobuf.CodedOutputStream
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            .computeMessageSize(7, getPartitionLocation());
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        size += getUnknownFields().getSerializedSize();
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        return size;
      }

      @java.lang.Override
      public boolean equals(final java.lang.Object obj) {
        if (obj == this) {
         return true;
        }
        if (!(obj instanceof tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionInfo)) {
          return super.equals(obj);
        }
        tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionInfo other = (tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionInfo) obj;

        if (getPartitionId()
            != other.getPartitionId()) return false;
        if (getActive()
            != other.getActive()) return false;
        if (!getChildPartitionIdsList()
            .equals(other.getChildPartitionIdsList())) return false;
        if (!getParentPartitionIdsList()
            .equals(other.getParentPartitionIdsList())) return false;
        if (hasPartitionStats() != other.hasPartitionStats()) return false;
        if (hasPartitionStats()) {
          if (!getPartitionStats()
              .equals(other.getPartitionStats())) return false;
        }
        if (hasPartitionConsumerStats() != other.hasPartitionConsumerStats()) return false;
        if (hasPartitionConsumerStats()) {
          if (!getPartitionConsumerStats()
              .equals(other.getPartitionConsumerStats())) return false;
        }
        if (hasPartitionLocation() != other.hasPartitionLocation()) return false;
        if (hasPartitionLocation()) {
          if (!getPartitionLocation()
              .equals(other.getPartitionLocation())) return false;
        }
        if (!getUnknownFields().equals(other.getUnknownFields())) return false;
        return true;
      }

      @java.lang.Override
      public int hashCode() {
        if (memoizedHashCode != 0) {
          return memoizedHashCode;
        }
        int hash = 41;
        hash = (19 * hash) + getDescriptor().hashCode();
        hash = (37 * hash) + PARTITION_ID_FIELD_NUMBER;
        hash = (53 * hash) + com.google.protobuf.Internal.hashLong(
            getPartitionId());
        hash = (37 * hash) + ACTIVE_FIELD_NUMBER;
        hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(
            getActive());
        if (getChildPartitionIdsCount() > 0) {
          hash = (37 * hash) + CHILD_PARTITION_IDS_FIELD_NUMBER;
          hash = (53 * hash) + getChildPartitionIdsList().hashCode();
        }
        if (getParentPartitionIdsCount() > 0) {
          hash = (37 * hash) + PARENT_PARTITION_IDS_FIELD_NUMBER;
          hash = (53 * hash) + getParentPartitionIdsList().hashCode();
        }
        if (hasPartitionStats()) {
          hash = (37 * hash) + PARTITION_STATS_FIELD_NUMBER;
          hash = (53 * hash) + getPartitionStats().hashCode();
        }
        if (hasPartitionConsumerStats()) {
          hash = (37 * hash) + PARTITION_CONSUMER_STATS_FIELD_NUMBER;
          hash = (53 * hash) + getPartitionConsumerStats().hashCode();
        }
        if (hasPartitionLocation()) {
          hash = (37 * hash) + PARTITION_LOCATION_FIELD_NUMBER;
          hash = (53 * hash) + getPartitionLocation().hashCode();
        }
        hash = (29 * hash) + getUnknownFields().hashCode();
        memoizedHashCode = hash;
        return hash;
      }

      public static tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionInfo parseFrom(
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          throws com.google.protobuf.InvalidProtocolBufferException {
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      public static tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionInfo parseFrom(
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          throws com.google.protobuf.InvalidProtocolBufferException {
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      public static tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionInfo parseFrom(
          com.google.protobuf.ByteString data)
          throws com.google.protobuf.InvalidProtocolBufferException {
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      public static tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionInfo parseFrom(
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          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
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      public static tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionInfo parseFrom(byte[] data)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return PARSER.parseFrom(data);
      }
      public static tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionInfo parseFrom(
          byte[] data,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
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        return PARSER.parseFrom(data, extensionRegistry);
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      public static tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionInfo parseFrom(java.io.InputStream input)
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        return com.google.protobuf.GeneratedMessageV3
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      public static tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionInfo parseFrom(
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        return com.google.protobuf.GeneratedMessageV3
            .parseWithIOException(PARSER, input, extensionRegistry);
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      public static tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionInfo parseDelimitedFrom(java.io.InputStream input)
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        return com.google.protobuf.GeneratedMessageV3
            .parseDelimitedWithIOException(PARSER, input);
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      public static tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionInfo parseDelimitedFrom(
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        return com.google.protobuf.GeneratedMessageV3
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      public static tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionInfo parseFrom(
          com.google.protobuf.CodedInputStream input)
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        return com.google.protobuf.GeneratedMessageV3
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      public static tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionInfo parseFrom(
          com.google.protobuf.CodedInputStream input,
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        return com.google.protobuf.GeneratedMessageV3
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      @java.lang.Override
      public Builder newBuilderForType() { return newBuilder(); }
      public static Builder newBuilder() {
        return DEFAULT_INSTANCE.toBuilder();
      }
      public static Builder newBuilder(tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionInfo prototype) {
        return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
      }
      @java.lang.Override
      public Builder toBuilder() {
        return this == DEFAULT_INSTANCE
            ? new Builder() : new Builder().mergeFrom(this);
      }

      @java.lang.Override
      protected Builder newBuilderForType(
          com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
        Builder builder = new Builder(parent);
        return builder;
      }
      /**
       * Protobuf type {@code Ydb.Topic.DescribeConsumerResult.PartitionInfo}
       */
      public static final class Builder extends
          com.google.protobuf.GeneratedMessageV3.Builder implements
          // @@protoc_insertion_point(builder_implements:Ydb.Topic.DescribeConsumerResult.PartitionInfo)
          tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionInfoOrBuilder {
        public static final com.google.protobuf.Descriptors.Descriptor
            getDescriptor() {
          return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_DescribeConsumerResult_PartitionInfo_descriptor;
        }

        @java.lang.Override
        protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
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        // Construct using tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionInfo.newBuilder()
        private Builder() {
          maybeForceBuilderInitialization();
        }

        private Builder(
            com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
          super(parent);
          maybeForceBuilderInitialization();
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        private void maybeForceBuilderInitialization() {
          if (com.google.protobuf.GeneratedMessageV3
                  .alwaysUseFieldBuilders) {
            getPartitionStatsFieldBuilder();
            getPartitionConsumerStatsFieldBuilder();
            getPartitionLocationFieldBuilder();
          }
        }
        @java.lang.Override
        public Builder clear() {
          super.clear();
          bitField0_ = 0;
          partitionId_ = 0L;
          active_ = false;
          childPartitionIds_ = emptyLongList();
          parentPartitionIds_ = emptyLongList();
          partitionStats_ = null;
          if (partitionStatsBuilder_ != null) {
            partitionStatsBuilder_.dispose();
            partitionStatsBuilder_ = null;
          }
          partitionConsumerStats_ = null;
          if (partitionConsumerStatsBuilder_ != null) {
            partitionConsumerStatsBuilder_.dispose();
            partitionConsumerStatsBuilder_ = null;
          }
          partitionLocation_ = null;
          if (partitionLocationBuilder_ != null) {
            partitionLocationBuilder_.dispose();
            partitionLocationBuilder_ = null;
          }
          return this;
        }

        @java.lang.Override
        public com.google.protobuf.Descriptors.Descriptor
            getDescriptorForType() {
          return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_DescribeConsumerResult_PartitionInfo_descriptor;
        }

        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionInfo getDefaultInstanceForType() {
          return tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionInfo.getDefaultInstance();
        }

        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionInfo build() {
          tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionInfo result = buildPartial();
          if (!result.isInitialized()) {
            throw newUninitializedMessageException(result);
          }
          return result;
        }

        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionInfo buildPartial() {
          tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionInfo result = new tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionInfo(this);
          if (bitField0_ != 0) { buildPartial0(result); }
          onBuilt();
          return result;
        }

        private void buildPartial0(tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionInfo result) {
          int from_bitField0_ = bitField0_;
          if (((from_bitField0_ & 0x00000001) != 0)) {
            result.partitionId_ = partitionId_;
          }
          if (((from_bitField0_ & 0x00000002) != 0)) {
            result.active_ = active_;
          }
          if (((from_bitField0_ & 0x00000004) != 0)) {
            childPartitionIds_.makeImmutable();
            result.childPartitionIds_ = childPartitionIds_;
          }
          if (((from_bitField0_ & 0x00000008) != 0)) {
            parentPartitionIds_.makeImmutable();
            result.parentPartitionIds_ = parentPartitionIds_;
          }
          int to_bitField0_ = 0;
          if (((from_bitField0_ & 0x00000010) != 0)) {
            result.partitionStats_ = partitionStatsBuilder_ == null
                ? partitionStats_
                : partitionStatsBuilder_.build();
            to_bitField0_ |= 0x00000001;
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          if (((from_bitField0_ & 0x00000020) != 0)) {
            result.partitionConsumerStats_ = partitionConsumerStatsBuilder_ == null
                ? partitionConsumerStats_
                : partitionConsumerStatsBuilder_.build();
            to_bitField0_ |= 0x00000002;
          }
          if (((from_bitField0_ & 0x00000040) != 0)) {
            result.partitionLocation_ = partitionLocationBuilder_ == null
                ? partitionLocation_
                : partitionLocationBuilder_.build();
            to_bitField0_ |= 0x00000004;
          }
          result.bitField0_ |= to_bitField0_;
        }

        @java.lang.Override
        public Builder clone() {
          return super.clone();
        }
        @java.lang.Override
        public Builder setField(
            com.google.protobuf.Descriptors.FieldDescriptor field,
            java.lang.Object value) {
          return super.setField(field, value);
        }
        @java.lang.Override
        public Builder clearField(
            com.google.protobuf.Descriptors.FieldDescriptor field) {
          return super.clearField(field);
        }
        @java.lang.Override
        public Builder clearOneof(
            com.google.protobuf.Descriptors.OneofDescriptor oneof) {
          return super.clearOneof(oneof);
        }
        @java.lang.Override
        public Builder setRepeatedField(
            com.google.protobuf.Descriptors.FieldDescriptor field,
            int index, java.lang.Object value) {
          return super.setRepeatedField(field, index, value);
        }
        @java.lang.Override
        public Builder addRepeatedField(
            com.google.protobuf.Descriptors.FieldDescriptor field,
            java.lang.Object value) {
          return super.addRepeatedField(field, value);
        }
        @java.lang.Override
        public Builder mergeFrom(com.google.protobuf.Message other) {
          if (other instanceof tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionInfo) {
            return mergeFrom((tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionInfo)other);
          } else {
            super.mergeFrom(other);
            return this;
          }
        }

        public Builder mergeFrom(tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionInfo other) {
          if (other == tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionInfo.getDefaultInstance()) return this;
          if (other.getPartitionId() != 0L) {
            setPartitionId(other.getPartitionId());
          }
          if (other.getActive() != false) {
            setActive(other.getActive());
          }
          if (!other.childPartitionIds_.isEmpty()) {
            if (childPartitionIds_.isEmpty()) {
              childPartitionIds_ = other.childPartitionIds_;
              childPartitionIds_.makeImmutable();
              bitField0_ |= 0x00000004;
            } else {
              ensureChildPartitionIdsIsMutable();
              childPartitionIds_.addAll(other.childPartitionIds_);
            }
            onChanged();
          }
          if (!other.parentPartitionIds_.isEmpty()) {
            if (parentPartitionIds_.isEmpty()) {
              parentPartitionIds_ = other.parentPartitionIds_;
              parentPartitionIds_.makeImmutable();
              bitField0_ |= 0x00000008;
            } else {
              ensureParentPartitionIdsIsMutable();
              parentPartitionIds_.addAll(other.parentPartitionIds_);
            }
            onChanged();
          }
          if (other.hasPartitionStats()) {
            mergePartitionStats(other.getPartitionStats());
          }
          if (other.hasPartitionConsumerStats()) {
            mergePartitionConsumerStats(other.getPartitionConsumerStats());
          }
          if (other.hasPartitionLocation()) {
            mergePartitionLocation(other.getPartitionLocation());
          }
          this.mergeUnknownFields(other.getUnknownFields());
          onChanged();
          return this;
        }

        @java.lang.Override
        public final boolean isInitialized() {
          return true;
        }

        @java.lang.Override
        public Builder mergeFrom(
            com.google.protobuf.CodedInputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws java.io.IOException {
          if (extensionRegistry == null) {
            throw new java.lang.NullPointerException();
          }
          try {
            boolean done = false;
            while (!done) {
              int tag = input.readTag();
              switch (tag) {
                case 0:
                  done = true;
                  break;
                case 8: {
                  partitionId_ = input.readInt64();
                  bitField0_ |= 0x00000001;
                  break;
                } // case 8
                case 16: {
                  active_ = input.readBool();
                  bitField0_ |= 0x00000002;
                  break;
                } // case 16
                case 24: {
                  long v = input.readInt64();
                  ensureChildPartitionIdsIsMutable();
                  childPartitionIds_.addLong(v);
                  break;
                } // case 24
                case 26: {
                  int length = input.readRawVarint32();
                  int limit = input.pushLimit(length);
                  ensureChildPartitionIdsIsMutable();
                  while (input.getBytesUntilLimit() > 0) {
                    childPartitionIds_.addLong(input.readInt64());
                  }
                  input.popLimit(limit);
                  break;
                } // case 26
                case 32: {
                  long v = input.readInt64();
                  ensureParentPartitionIdsIsMutable();
                  parentPartitionIds_.addLong(v);
                  break;
                } // case 32
                case 34: {
                  int length = input.readRawVarint32();
                  int limit = input.pushLimit(length);
                  ensureParentPartitionIdsIsMutable();
                  while (input.getBytesUntilLimit() > 0) {
                    parentPartitionIds_.addLong(input.readInt64());
                  }
                  input.popLimit(limit);
                  break;
                } // case 34
                case 42: {
                  input.readMessage(
                      getPartitionStatsFieldBuilder().getBuilder(),
                      extensionRegistry);
                  bitField0_ |= 0x00000010;
                  break;
                } // case 42
                case 50: {
                  input.readMessage(
                      getPartitionConsumerStatsFieldBuilder().getBuilder(),
                      extensionRegistry);
                  bitField0_ |= 0x00000020;
                  break;
                } // case 50
                case 58: {
                  input.readMessage(
                      getPartitionLocationFieldBuilder().getBuilder(),
                      extensionRegistry);
                  bitField0_ |= 0x00000040;
                  break;
                } // case 58
                default: {
                  if (!super.parseUnknownField(input, extensionRegistry, tag)) {
                    done = true; // was an endgroup tag
                  }
                  break;
                } // default:
              } // switch (tag)
            } // while (!done)
          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
            throw e.unwrapIOException();
          } finally {
            onChanged();
          } // finally
          return this;
        }
        private int bitField0_;

        private long partitionId_ ;
        /**
         * 
         * Partition identifier.
         * 
         *
         * int64 partition_id = 1;
         * @return The partitionId.
         */
        @java.lang.Override
        public long getPartitionId() {
          return partitionId_;
        }
        /**
         * 
         * Partition identifier.
         * 
         *
         * int64 partition_id = 1;
         * @param value The partitionId to set.
         * @return This builder for chaining.
         */
        public Builder setPartitionId(long value) {

          partitionId_ = value;
          bitField0_ |= 0x00000001;
          onChanged();
          return this;
        }
        /**
         * 
         * Partition identifier.
         * 
         *
         * int64 partition_id = 1;
         * @return This builder for chaining.
         */
        public Builder clearPartitionId() {
          bitField0_ = (bitField0_ & ~0x00000001);
          partitionId_ = 0L;
          onChanged();
          return this;
        }

        private boolean active_ ;
        /**
         * 
         * Is partition open for write.
         * 
         *
         * bool active = 2;
         * @return The active.
         */
        @java.lang.Override
        public boolean getActive() {
          return active_;
        }
        /**
         * 
         * Is partition open for write.
         * 
         *
         * bool active = 2;
         * @param value The active to set.
         * @return This builder for chaining.
         */
        public Builder setActive(boolean value) {

          active_ = value;
          bitField0_ |= 0x00000002;
          onChanged();
          return this;
        }
        /**
         * 
         * Is partition open for write.
         * 
         *
         * bool active = 2;
         * @return This builder for chaining.
         */
        public Builder clearActive() {
          bitField0_ = (bitField0_ & ~0x00000002);
          active_ = false;
          onChanged();
          return this;
        }

        private com.google.protobuf.Internal.LongList childPartitionIds_ = emptyLongList();
        private void ensureChildPartitionIdsIsMutable() {
          if (!childPartitionIds_.isModifiable()) {
            childPartitionIds_ = makeMutableCopy(childPartitionIds_);
          }
          bitField0_ |= 0x00000004;
        }
        /**
         * 
         * Ids of partitions which was formed when this partition was split or merged.
         * 
         *
         * repeated int64 child_partition_ids = 3;
         * @return A list containing the childPartitionIds.
         */
        public java.util.List
            getChildPartitionIdsList() {
          childPartitionIds_.makeImmutable();
          return childPartitionIds_;
        }
        /**
         * 
         * Ids of partitions which was formed when this partition was split or merged.
         * 
         *
         * repeated int64 child_partition_ids = 3;
         * @return The count of childPartitionIds.
         */
        public int getChildPartitionIdsCount() {
          return childPartitionIds_.size();
        }
        /**
         * 
         * Ids of partitions which was formed when this partition was split or merged.
         * 
         *
         * repeated int64 child_partition_ids = 3;
         * @param index The index of the element to return.
         * @return The childPartitionIds at the given index.
         */
        public long getChildPartitionIds(int index) {
          return childPartitionIds_.getLong(index);
        }
        /**
         * 
         * Ids of partitions which was formed when this partition was split or merged.
         * 
         *
         * repeated int64 child_partition_ids = 3;
         * @param index The index to set the value at.
         * @param value The childPartitionIds to set.
         * @return This builder for chaining.
         */
        public Builder setChildPartitionIds(
            int index, long value) {

          ensureChildPartitionIdsIsMutable();
          childPartitionIds_.setLong(index, value);
          bitField0_ |= 0x00000004;
          onChanged();
          return this;
        }
        /**
         * 
         * Ids of partitions which was formed when this partition was split or merged.
         * 
         *
         * repeated int64 child_partition_ids = 3;
         * @param value The childPartitionIds to add.
         * @return This builder for chaining.
         */
        public Builder addChildPartitionIds(long value) {

          ensureChildPartitionIdsIsMutable();
          childPartitionIds_.addLong(value);
          bitField0_ |= 0x00000004;
          onChanged();
          return this;
        }
        /**
         * 
         * Ids of partitions which was formed when this partition was split or merged.
         * 
         *
         * repeated int64 child_partition_ids = 3;
         * @param values The childPartitionIds to add.
         * @return This builder for chaining.
         */
        public Builder addAllChildPartitionIds(
            java.lang.Iterable values) {
          ensureChildPartitionIdsIsMutable();
          com.google.protobuf.AbstractMessageLite.Builder.addAll(
              values, childPartitionIds_);
          bitField0_ |= 0x00000004;
          onChanged();
          return this;
        }
        /**
         * 
         * Ids of partitions which was formed when this partition was split or merged.
         * 
         *
         * repeated int64 child_partition_ids = 3;
         * @return This builder for chaining.
         */
        public Builder clearChildPartitionIds() {
          childPartitionIds_ = emptyLongList();
          bitField0_ = (bitField0_ & ~0x00000004);
          onChanged();
          return this;
        }

        private com.google.protobuf.Internal.LongList parentPartitionIds_ = emptyLongList();
        private void ensureParentPartitionIdsIsMutable() {
          if (!parentPartitionIds_.isModifiable()) {
            parentPartitionIds_ = makeMutableCopy(parentPartitionIds_);
          }
          bitField0_ |= 0x00000008;
        }
        /**
         * 
         * Ids of partitions from which this partition was formed by split or merge.
         * 
         *
         * repeated int64 parent_partition_ids = 4;
         * @return A list containing the parentPartitionIds.
         */
        public java.util.List
            getParentPartitionIdsList() {
          parentPartitionIds_.makeImmutable();
          return parentPartitionIds_;
        }
        /**
         * 
         * Ids of partitions from which this partition was formed by split or merge.
         * 
         *
         * repeated int64 parent_partition_ids = 4;
         * @return The count of parentPartitionIds.
         */
        public int getParentPartitionIdsCount() {
          return parentPartitionIds_.size();
        }
        /**
         * 
         * Ids of partitions from which this partition was formed by split or merge.
         * 
         *
         * repeated int64 parent_partition_ids = 4;
         * @param index The index of the element to return.
         * @return The parentPartitionIds at the given index.
         */
        public long getParentPartitionIds(int index) {
          return parentPartitionIds_.getLong(index);
        }
        /**
         * 
         * Ids of partitions from which this partition was formed by split or merge.
         * 
         *
         * repeated int64 parent_partition_ids = 4;
         * @param index The index to set the value at.
         * @param value The parentPartitionIds to set.
         * @return This builder for chaining.
         */
        public Builder setParentPartitionIds(
            int index, long value) {

          ensureParentPartitionIdsIsMutable();
          parentPartitionIds_.setLong(index, value);
          bitField0_ |= 0x00000008;
          onChanged();
          return this;
        }
        /**
         * 
         * Ids of partitions from which this partition was formed by split or merge.
         * 
         *
         * repeated int64 parent_partition_ids = 4;
         * @param value The parentPartitionIds to add.
         * @return This builder for chaining.
         */
        public Builder addParentPartitionIds(long value) {

          ensureParentPartitionIdsIsMutable();
          parentPartitionIds_.addLong(value);
          bitField0_ |= 0x00000008;
          onChanged();
          return this;
        }
        /**
         * 
         * Ids of partitions from which this partition was formed by split or merge.
         * 
         *
         * repeated int64 parent_partition_ids = 4;
         * @param values The parentPartitionIds to add.
         * @return This builder for chaining.
         */
        public Builder addAllParentPartitionIds(
            java.lang.Iterable values) {
          ensureParentPartitionIdsIsMutable();
          com.google.protobuf.AbstractMessageLite.Builder.addAll(
              values, parentPartitionIds_);
          bitField0_ |= 0x00000008;
          onChanged();
          return this;
        }
        /**
         * 
         * Ids of partitions from which this partition was formed by split or merge.
         * 
         *
         * repeated int64 parent_partition_ids = 4;
         * @return This builder for chaining.
         */
        public Builder clearParentPartitionIds() {
          parentPartitionIds_ = emptyLongList();
          bitField0_ = (bitField0_ & ~0x00000008);
          onChanged();
          return this;
        }

        private tech.ydb.proto.topic.YdbTopic.PartitionStats partitionStats_;
        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.PartitionStats, tech.ydb.proto.topic.YdbTopic.PartitionStats.Builder, tech.ydb.proto.topic.YdbTopic.PartitionStatsOrBuilder> partitionStatsBuilder_;
        /**
         * 
         * Stats for partition, filled only when include_stats in request is true.
         * 
         *
         * .Ydb.Topic.PartitionStats partition_stats = 5;
         * @return Whether the partitionStats field is set.
         */
        public boolean hasPartitionStats() {
          return ((bitField0_ & 0x00000010) != 0);
        }
        /**
         * 
         * Stats for partition, filled only when include_stats in request is true.
         * 
         *
         * .Ydb.Topic.PartitionStats partition_stats = 5;
         * @return The partitionStats.
         */
        public tech.ydb.proto.topic.YdbTopic.PartitionStats getPartitionStats() {
          if (partitionStatsBuilder_ == null) {
            return partitionStats_ == null ? tech.ydb.proto.topic.YdbTopic.PartitionStats.getDefaultInstance() : partitionStats_;
          } else {
            return partitionStatsBuilder_.getMessage();
          }
        }
        /**
         * 
         * Stats for partition, filled only when include_stats in request is true.
         * 
         *
         * .Ydb.Topic.PartitionStats partition_stats = 5;
         */
        public Builder setPartitionStats(tech.ydb.proto.topic.YdbTopic.PartitionStats value) {
          if (partitionStatsBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            partitionStats_ = value;
          } else {
            partitionStatsBuilder_.setMessage(value);
          }
          bitField0_ |= 0x00000010;
          onChanged();
          return this;
        }
        /**
         * 
         * Stats for partition, filled only when include_stats in request is true.
         * 
         *
         * .Ydb.Topic.PartitionStats partition_stats = 5;
         */
        public Builder setPartitionStats(
            tech.ydb.proto.topic.YdbTopic.PartitionStats.Builder builderForValue) {
          if (partitionStatsBuilder_ == null) {
            partitionStats_ = builderForValue.build();
          } else {
            partitionStatsBuilder_.setMessage(builderForValue.build());
          }
          bitField0_ |= 0x00000010;
          onChanged();
          return this;
        }
        /**
         * 
         * Stats for partition, filled only when include_stats in request is true.
         * 
         *
         * .Ydb.Topic.PartitionStats partition_stats = 5;
         */
        public Builder mergePartitionStats(tech.ydb.proto.topic.YdbTopic.PartitionStats value) {
          if (partitionStatsBuilder_ == null) {
            if (((bitField0_ & 0x00000010) != 0) &&
              partitionStats_ != null &&
              partitionStats_ != tech.ydb.proto.topic.YdbTopic.PartitionStats.getDefaultInstance()) {
              getPartitionStatsBuilder().mergeFrom(value);
            } else {
              partitionStats_ = value;
            }
          } else {
            partitionStatsBuilder_.mergeFrom(value);
          }
          if (partitionStats_ != null) {
            bitField0_ |= 0x00000010;
            onChanged();
          }
          return this;
        }
        /**
         * 
         * Stats for partition, filled only when include_stats in request is true.
         * 
         *
         * .Ydb.Topic.PartitionStats partition_stats = 5;
         */
        public Builder clearPartitionStats() {
          bitField0_ = (bitField0_ & ~0x00000010);
          partitionStats_ = null;
          if (partitionStatsBuilder_ != null) {
            partitionStatsBuilder_.dispose();
            partitionStatsBuilder_ = null;
          }
          onChanged();
          return this;
        }
        /**
         * 
         * Stats for partition, filled only when include_stats in request is true.
         * 
         *
         * .Ydb.Topic.PartitionStats partition_stats = 5;
         */
        public tech.ydb.proto.topic.YdbTopic.PartitionStats.Builder getPartitionStatsBuilder() {
          bitField0_ |= 0x00000010;
          onChanged();
          return getPartitionStatsFieldBuilder().getBuilder();
        }
        /**
         * 
         * Stats for partition, filled only when include_stats in request is true.
         * 
         *
         * .Ydb.Topic.PartitionStats partition_stats = 5;
         */
        public tech.ydb.proto.topic.YdbTopic.PartitionStatsOrBuilder getPartitionStatsOrBuilder() {
          if (partitionStatsBuilder_ != null) {
            return partitionStatsBuilder_.getMessageOrBuilder();
          } else {
            return partitionStats_ == null ?
                tech.ydb.proto.topic.YdbTopic.PartitionStats.getDefaultInstance() : partitionStats_;
          }
        }
        /**
         * 
         * Stats for partition, filled only when include_stats in request is true.
         * 
         *
         * .Ydb.Topic.PartitionStats partition_stats = 5;
         */
        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.PartitionStats, tech.ydb.proto.topic.YdbTopic.PartitionStats.Builder, tech.ydb.proto.topic.YdbTopic.PartitionStatsOrBuilder> 
            getPartitionStatsFieldBuilder() {
          if (partitionStatsBuilder_ == null) {
            partitionStatsBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
                tech.ydb.proto.topic.YdbTopic.PartitionStats, tech.ydb.proto.topic.YdbTopic.PartitionStats.Builder, tech.ydb.proto.topic.YdbTopic.PartitionStatsOrBuilder>(
                    getPartitionStats(),
                    getParentForChildren(),
                    isClean());
            partitionStats_ = null;
          }
          return partitionStatsBuilder_;
        }

        private tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionConsumerStats partitionConsumerStats_;
        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionConsumerStats, tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionConsumerStats.Builder, tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionConsumerStatsOrBuilder> partitionConsumerStatsBuilder_;
        /**
         * 
         * Stats for consumer of this partition, filled only when include_stats in request is true.
         * 
         *
         * .Ydb.Topic.DescribeConsumerResult.PartitionConsumerStats partition_consumer_stats = 6;
         * @return Whether the partitionConsumerStats field is set.
         */
        public boolean hasPartitionConsumerStats() {
          return ((bitField0_ & 0x00000020) != 0);
        }
        /**
         * 
         * Stats for consumer of this partition, filled only when include_stats in request is true.
         * 
         *
         * .Ydb.Topic.DescribeConsumerResult.PartitionConsumerStats partition_consumer_stats = 6;
         * @return The partitionConsumerStats.
         */
        public tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionConsumerStats getPartitionConsumerStats() {
          if (partitionConsumerStatsBuilder_ == null) {
            return partitionConsumerStats_ == null ? tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionConsumerStats.getDefaultInstance() : partitionConsumerStats_;
          } else {
            return partitionConsumerStatsBuilder_.getMessage();
          }
        }
        /**
         * 
         * Stats for consumer of this partition, filled only when include_stats in request is true.
         * 
         *
         * .Ydb.Topic.DescribeConsumerResult.PartitionConsumerStats partition_consumer_stats = 6;
         */
        public Builder setPartitionConsumerStats(tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionConsumerStats value) {
          if (partitionConsumerStatsBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            partitionConsumerStats_ = value;
          } else {
            partitionConsumerStatsBuilder_.setMessage(value);
          }
          bitField0_ |= 0x00000020;
          onChanged();
          return this;
        }
        /**
         * 
         * Stats for consumer of this partition, filled only when include_stats in request is true.
         * 
         *
         * .Ydb.Topic.DescribeConsumerResult.PartitionConsumerStats partition_consumer_stats = 6;
         */
        public Builder setPartitionConsumerStats(
            tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionConsumerStats.Builder builderForValue) {
          if (partitionConsumerStatsBuilder_ == null) {
            partitionConsumerStats_ = builderForValue.build();
          } else {
            partitionConsumerStatsBuilder_.setMessage(builderForValue.build());
          }
          bitField0_ |= 0x00000020;
          onChanged();
          return this;
        }
        /**
         * 
         * Stats for consumer of this partition, filled only when include_stats in request is true.
         * 
         *
         * .Ydb.Topic.DescribeConsumerResult.PartitionConsumerStats partition_consumer_stats = 6;
         */
        public Builder mergePartitionConsumerStats(tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionConsumerStats value) {
          if (partitionConsumerStatsBuilder_ == null) {
            if (((bitField0_ & 0x00000020) != 0) &&
              partitionConsumerStats_ != null &&
              partitionConsumerStats_ != tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionConsumerStats.getDefaultInstance()) {
              getPartitionConsumerStatsBuilder().mergeFrom(value);
            } else {
              partitionConsumerStats_ = value;
            }
          } else {
            partitionConsumerStatsBuilder_.mergeFrom(value);
          }
          if (partitionConsumerStats_ != null) {
            bitField0_ |= 0x00000020;
            onChanged();
          }
          return this;
        }
        /**
         * 
         * Stats for consumer of this partition, filled only when include_stats in request is true.
         * 
         *
         * .Ydb.Topic.DescribeConsumerResult.PartitionConsumerStats partition_consumer_stats = 6;
         */
        public Builder clearPartitionConsumerStats() {
          bitField0_ = (bitField0_ & ~0x00000020);
          partitionConsumerStats_ = null;
          if (partitionConsumerStatsBuilder_ != null) {
            partitionConsumerStatsBuilder_.dispose();
            partitionConsumerStatsBuilder_ = null;
          }
          onChanged();
          return this;
        }
        /**
         * 
         * Stats for consumer of this partition, filled only when include_stats in request is true.
         * 
         *
         * .Ydb.Topic.DescribeConsumerResult.PartitionConsumerStats partition_consumer_stats = 6;
         */
        public tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionConsumerStats.Builder getPartitionConsumerStatsBuilder() {
          bitField0_ |= 0x00000020;
          onChanged();
          return getPartitionConsumerStatsFieldBuilder().getBuilder();
        }
        /**
         * 
         * Stats for consumer of this partition, filled only when include_stats in request is true.
         * 
         *
         * .Ydb.Topic.DescribeConsumerResult.PartitionConsumerStats partition_consumer_stats = 6;
         */
        public tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionConsumerStatsOrBuilder getPartitionConsumerStatsOrBuilder() {
          if (partitionConsumerStatsBuilder_ != null) {
            return partitionConsumerStatsBuilder_.getMessageOrBuilder();
          } else {
            return partitionConsumerStats_ == null ?
                tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionConsumerStats.getDefaultInstance() : partitionConsumerStats_;
          }
        }
        /**
         * 
         * Stats for consumer of this partition, filled only when include_stats in request is true.
         * 
         *
         * .Ydb.Topic.DescribeConsumerResult.PartitionConsumerStats partition_consumer_stats = 6;
         */
        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionConsumerStats, tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionConsumerStats.Builder, tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionConsumerStatsOrBuilder> 
            getPartitionConsumerStatsFieldBuilder() {
          if (partitionConsumerStatsBuilder_ == null) {
            partitionConsumerStatsBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
                tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionConsumerStats, tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionConsumerStats.Builder, tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionConsumerStatsOrBuilder>(
                    getPartitionConsumerStats(),
                    getParentForChildren(),
                    isClean());
            partitionConsumerStats_ = null;
          }
          return partitionConsumerStatsBuilder_;
        }

        private tech.ydb.proto.topic.YdbTopic.PartitionLocation partitionLocation_;
        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.PartitionLocation, tech.ydb.proto.topic.YdbTopic.PartitionLocation.Builder, tech.ydb.proto.topic.YdbTopic.PartitionLocationOrBuilder> partitionLocationBuilder_;
        /**
         * 
         * Partition location, filled only when include_location in request is true.
         * 
         *
         * .Ydb.Topic.PartitionLocation partition_location = 7;
         * @return Whether the partitionLocation field is set.
         */
        public boolean hasPartitionLocation() {
          return ((bitField0_ & 0x00000040) != 0);
        }
        /**
         * 
         * Partition location, filled only when include_location in request is true.
         * 
         *
         * .Ydb.Topic.PartitionLocation partition_location = 7;
         * @return The partitionLocation.
         */
        public tech.ydb.proto.topic.YdbTopic.PartitionLocation getPartitionLocation() {
          if (partitionLocationBuilder_ == null) {
            return partitionLocation_ == null ? tech.ydb.proto.topic.YdbTopic.PartitionLocation.getDefaultInstance() : partitionLocation_;
          } else {
            return partitionLocationBuilder_.getMessage();
          }
        }
        /**
         * 
         * Partition location, filled only when include_location in request is true.
         * 
         *
         * .Ydb.Topic.PartitionLocation partition_location = 7;
         */
        public Builder setPartitionLocation(tech.ydb.proto.topic.YdbTopic.PartitionLocation value) {
          if (partitionLocationBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            partitionLocation_ = value;
          } else {
            partitionLocationBuilder_.setMessage(value);
          }
          bitField0_ |= 0x00000040;
          onChanged();
          return this;
        }
        /**
         * 
         * Partition location, filled only when include_location in request is true.
         * 
         *
         * .Ydb.Topic.PartitionLocation partition_location = 7;
         */
        public Builder setPartitionLocation(
            tech.ydb.proto.topic.YdbTopic.PartitionLocation.Builder builderForValue) {
          if (partitionLocationBuilder_ == null) {
            partitionLocation_ = builderForValue.build();
          } else {
            partitionLocationBuilder_.setMessage(builderForValue.build());
          }
          bitField0_ |= 0x00000040;
          onChanged();
          return this;
        }
        /**
         * 
         * Partition location, filled only when include_location in request is true.
         * 
         *
         * .Ydb.Topic.PartitionLocation partition_location = 7;
         */
        public Builder mergePartitionLocation(tech.ydb.proto.topic.YdbTopic.PartitionLocation value) {
          if (partitionLocationBuilder_ == null) {
            if (((bitField0_ & 0x00000040) != 0) &&
              partitionLocation_ != null &&
              partitionLocation_ != tech.ydb.proto.topic.YdbTopic.PartitionLocation.getDefaultInstance()) {
              getPartitionLocationBuilder().mergeFrom(value);
            } else {
              partitionLocation_ = value;
            }
          } else {
            partitionLocationBuilder_.mergeFrom(value);
          }
          if (partitionLocation_ != null) {
            bitField0_ |= 0x00000040;
            onChanged();
          }
          return this;
        }
        /**
         * 
         * Partition location, filled only when include_location in request is true.
         * 
         *
         * .Ydb.Topic.PartitionLocation partition_location = 7;
         */
        public Builder clearPartitionLocation() {
          bitField0_ = (bitField0_ & ~0x00000040);
          partitionLocation_ = null;
          if (partitionLocationBuilder_ != null) {
            partitionLocationBuilder_.dispose();
            partitionLocationBuilder_ = null;
          }
          onChanged();
          return this;
        }
        /**
         * 
         * Partition location, filled only when include_location in request is true.
         * 
         *
         * .Ydb.Topic.PartitionLocation partition_location = 7;
         */
        public tech.ydb.proto.topic.YdbTopic.PartitionLocation.Builder getPartitionLocationBuilder() {
          bitField0_ |= 0x00000040;
          onChanged();
          return getPartitionLocationFieldBuilder().getBuilder();
        }
        /**
         * 
         * Partition location, filled only when include_location in request is true.
         * 
         *
         * .Ydb.Topic.PartitionLocation partition_location = 7;
         */
        public tech.ydb.proto.topic.YdbTopic.PartitionLocationOrBuilder getPartitionLocationOrBuilder() {
          if (partitionLocationBuilder_ != null) {
            return partitionLocationBuilder_.getMessageOrBuilder();
          } else {
            return partitionLocation_ == null ?
                tech.ydb.proto.topic.YdbTopic.PartitionLocation.getDefaultInstance() : partitionLocation_;
          }
        }
        /**
         * 
         * Partition location, filled only when include_location in request is true.
         * 
         *
         * .Ydb.Topic.PartitionLocation partition_location = 7;
         */
        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.PartitionLocation, tech.ydb.proto.topic.YdbTopic.PartitionLocation.Builder, tech.ydb.proto.topic.YdbTopic.PartitionLocationOrBuilder> 
            getPartitionLocationFieldBuilder() {
          if (partitionLocationBuilder_ == null) {
            partitionLocationBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
                tech.ydb.proto.topic.YdbTopic.PartitionLocation, tech.ydb.proto.topic.YdbTopic.PartitionLocation.Builder, tech.ydb.proto.topic.YdbTopic.PartitionLocationOrBuilder>(
                    getPartitionLocation(),
                    getParentForChildren(),
                    isClean());
            partitionLocation_ = null;
          }
          return partitionLocationBuilder_;
        }
        @java.lang.Override
        public final Builder setUnknownFields(
            final com.google.protobuf.UnknownFieldSet unknownFields) {
          return super.setUnknownFields(unknownFields);
        }

        @java.lang.Override
        public final Builder mergeUnknownFields(
            final com.google.protobuf.UnknownFieldSet unknownFields) {
          return super.mergeUnknownFields(unknownFields);
        }


        // @@protoc_insertion_point(builder_scope:Ydb.Topic.DescribeConsumerResult.PartitionInfo)
      }

      // @@protoc_insertion_point(class_scope:Ydb.Topic.DescribeConsumerResult.PartitionInfo)
      private static final tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionInfo DEFAULT_INSTANCE;
      static {
        DEFAULT_INSTANCE = new tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionInfo();
      }

      public static tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionInfo getDefaultInstance() {
        return DEFAULT_INSTANCE;
      }

      private static final com.google.protobuf.Parser
          PARSER = new com.google.protobuf.AbstractParser() {
        @java.lang.Override
        public PartitionInfo parsePartialFrom(
            com.google.protobuf.CodedInputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws com.google.protobuf.InvalidProtocolBufferException {
          Builder builder = newBuilder();
          try {
            builder.mergeFrom(input, extensionRegistry);
          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
            throw e.setUnfinishedMessage(builder.buildPartial());
          } catch (com.google.protobuf.UninitializedMessageException e) {
            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
          } catch (java.io.IOException e) {
            throw new com.google.protobuf.InvalidProtocolBufferException(e)
                .setUnfinishedMessage(builder.buildPartial());
          }
          return builder.buildPartial();
        }
      };

      public static com.google.protobuf.Parser parser() {
        return PARSER;
      }

      @java.lang.Override
      public com.google.protobuf.Parser getParserForType() {
        return PARSER;
      }

      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionInfo getDefaultInstanceForType() {
        return DEFAULT_INSTANCE;
      }

    }

    public interface PartitionConsumerStatsOrBuilder extends
        // @@protoc_insertion_point(interface_extends:Ydb.Topic.DescribeConsumerResult.PartitionConsumerStats)
        com.google.protobuf.MessageOrBuilder {

      /**
       * 
       * Last read offset from this partition.
       * 
       *
       * int64 last_read_offset = 1;
       * @return The lastReadOffset.
       */
      long getLastReadOffset();

      /**
       * 
       * Committed offset for this partition.
       * 
       *
       * int64 committed_offset = 2;
       * @return The committedOffset.
       */
      long getCommittedOffset();

      /**
       * 
       * Reading this partition read session identifier.
       * 
       *
       * string read_session_id = 3;
       * @return The readSessionId.
       */
      java.lang.String getReadSessionId();
      /**
       * 
       * Reading this partition read session identifier.
       * 
       *
       * string read_session_id = 3;
       * @return The bytes for readSessionId.
       */
      com.google.protobuf.ByteString
          getReadSessionIdBytes();

      /**
       * 
       * Timestamp of providing this partition to this session by server.
       * 
       *
       * .google.protobuf.Timestamp partition_read_session_create_time = 4;
       * @return Whether the partitionReadSessionCreateTime field is set.
       */
      boolean hasPartitionReadSessionCreateTime();
      /**
       * 
       * Timestamp of providing this partition to this session by server.
       * 
       *
       * .google.protobuf.Timestamp partition_read_session_create_time = 4;
       * @return The partitionReadSessionCreateTime.
       */
      com.google.protobuf.Timestamp getPartitionReadSessionCreateTime();
      /**
       * 
       * Timestamp of providing this partition to this session by server.
       * 
       *
       * .google.protobuf.Timestamp partition_read_session_create_time = 4;
       */
      com.google.protobuf.TimestampOrBuilder getPartitionReadSessionCreateTimeOrBuilder();

      /**
       * 
       * Timestamp of last read from this partition.
       * 
       *
       * .google.protobuf.Timestamp last_read_time = 5;
       * @return Whether the lastReadTime field is set.
       */
      boolean hasLastReadTime();
      /**
       * 
       * Timestamp of last read from this partition.
       * 
       *
       * .google.protobuf.Timestamp last_read_time = 5;
       * @return The lastReadTime.
       */
      com.google.protobuf.Timestamp getLastReadTime();
      /**
       * 
       * Timestamp of last read from this partition.
       * 
       *
       * .google.protobuf.Timestamp last_read_time = 5;
       */
      com.google.protobuf.TimestampOrBuilder getLastReadTimeOrBuilder();

      /**
       * 
       * Maximum of differences between timestamp of read and write timestamp for all messages, read during last minute.
       * 
       *
       * .google.protobuf.Duration max_read_time_lag = 6;
       * @return Whether the maxReadTimeLag field is set.
       */
      boolean hasMaxReadTimeLag();
      /**
       * 
       * Maximum of differences between timestamp of read and write timestamp for all messages, read during last minute.
       * 
       *
       * .google.protobuf.Duration max_read_time_lag = 6;
       * @return The maxReadTimeLag.
       */
      com.google.protobuf.Duration getMaxReadTimeLag();
      /**
       * 
       * Maximum of differences between timestamp of read and write timestamp for all messages, read during last minute.
       * 
       *
       * .google.protobuf.Duration max_read_time_lag = 6;
       */
      com.google.protobuf.DurationOrBuilder getMaxReadTimeLagOrBuilder();

      /**
       * 
       * Maximum of differences between write timestamp and create timestamp for all messages, read during last minute.
       * 
       *
       * .google.protobuf.Duration max_write_time_lag = 7;
       * @return Whether the maxWriteTimeLag field is set.
       */
      boolean hasMaxWriteTimeLag();
      /**
       * 
       * Maximum of differences between write timestamp and create timestamp for all messages, read during last minute.
       * 
       *
       * .google.protobuf.Duration max_write_time_lag = 7;
       * @return The maxWriteTimeLag.
       */
      com.google.protobuf.Duration getMaxWriteTimeLag();
      /**
       * 
       * Maximum of differences between write timestamp and create timestamp for all messages, read during last minute.
       * 
       *
       * .google.protobuf.Duration max_write_time_lag = 7;
       */
      com.google.protobuf.DurationOrBuilder getMaxWriteTimeLagOrBuilder();

      /**
       * 
       * How much bytes were read during several windows statistics from this partition.
       * 
       *
       * .Ydb.Topic.MultipleWindowsStat bytes_read = 8;
       * @return Whether the bytesRead field is set.
       */
      boolean hasBytesRead();
      /**
       * 
       * How much bytes were read during several windows statistics from this partition.
       * 
       *
       * .Ydb.Topic.MultipleWindowsStat bytes_read = 8;
       * @return The bytesRead.
       */
      tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat getBytesRead();
      /**
       * 
       * How much bytes were read during several windows statistics from this partition.
       * 
       *
       * .Ydb.Topic.MultipleWindowsStat bytes_read = 8;
       */
      tech.ydb.proto.topic.YdbTopic.MultipleWindowsStatOrBuilder getBytesReadOrBuilder();

      /**
       * 
       * Read session name, provided by client.
       * 
       *
       * string reader_name = 11;
       * @return The readerName.
       */
      java.lang.String getReaderName();
      /**
       * 
       * Read session name, provided by client.
       * 
       *
       * string reader_name = 11;
       * @return The bytes for readerName.
       */
      com.google.protobuf.ByteString
          getReaderNameBytes();

      /**
       * 
       * Host where read session connected.
       * 
       *
       * int32 connection_node_id = 12;
       * @return The connectionNodeId.
       */
      int getConnectionNodeId();
    }
    /**
     * Protobuf type {@code Ydb.Topic.DescribeConsumerResult.PartitionConsumerStats}
     */
    public static final class PartitionConsumerStats extends
        com.google.protobuf.GeneratedMessageV3 implements
        // @@protoc_insertion_point(message_implements:Ydb.Topic.DescribeConsumerResult.PartitionConsumerStats)
        PartitionConsumerStatsOrBuilder {
    private static final long serialVersionUID = 0L;
      // Use PartitionConsumerStats.newBuilder() to construct.
      private PartitionConsumerStats(com.google.protobuf.GeneratedMessageV3.Builder builder) {
        super(builder);
      }
      private PartitionConsumerStats() {
        readSessionId_ = "";
        readerName_ = "";
      }

      @java.lang.Override
      @SuppressWarnings({"unused"})
      protected java.lang.Object newInstance(
          UnusedPrivateParameter unused) {
        return new PartitionConsumerStats();
      }

      public static final com.google.protobuf.Descriptors.Descriptor
          getDescriptor() {
        return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_DescribeConsumerResult_PartitionConsumerStats_descriptor;
      }

      @java.lang.Override
      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
          internalGetFieldAccessorTable() {
        return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_DescribeConsumerResult_PartitionConsumerStats_fieldAccessorTable
            .ensureFieldAccessorsInitialized(
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      private int bitField0_;
      public static final int LAST_READ_OFFSET_FIELD_NUMBER = 1;
      private long lastReadOffset_ = 0L;
      /**
       * 
       * Last read offset from this partition.
       * 
       *
       * int64 last_read_offset = 1;
       * @return The lastReadOffset.
       */
      @java.lang.Override
      public long getLastReadOffset() {
        return lastReadOffset_;
      }

      public static final int COMMITTED_OFFSET_FIELD_NUMBER = 2;
      private long committedOffset_ = 0L;
      /**
       * 
       * Committed offset for this partition.
       * 
       *
       * int64 committed_offset = 2;
       * @return The committedOffset.
       */
      @java.lang.Override
      public long getCommittedOffset() {
        return committedOffset_;
      }

      public static final int READ_SESSION_ID_FIELD_NUMBER = 3;
      @SuppressWarnings("serial")
      private volatile java.lang.Object readSessionId_ = "";
      /**
       * 
       * Reading this partition read session identifier.
       * 
       *
       * string read_session_id = 3;
       * @return The readSessionId.
       */
      @java.lang.Override
      public java.lang.String getReadSessionId() {
        java.lang.Object ref = readSessionId_;
        if (ref instanceof java.lang.String) {
          return (java.lang.String) ref;
        } else {
          com.google.protobuf.ByteString bs = 
              (com.google.protobuf.ByteString) ref;
          java.lang.String s = bs.toStringUtf8();
          readSessionId_ = s;
          return s;
        }
      }
      /**
       * 
       * Reading this partition read session identifier.
       * 
       *
       * string read_session_id = 3;
       * @return The bytes for readSessionId.
       */
      @java.lang.Override
      public com.google.protobuf.ByteString
          getReadSessionIdBytes() {
        java.lang.Object ref = readSessionId_;
        if (ref instanceof java.lang.String) {
          com.google.protobuf.ByteString b = 
              com.google.protobuf.ByteString.copyFromUtf8(
                  (java.lang.String) ref);
          readSessionId_ = b;
          return b;
        } else {
          return (com.google.protobuf.ByteString) ref;
        }
      }

      public static final int PARTITION_READ_SESSION_CREATE_TIME_FIELD_NUMBER = 4;
      private com.google.protobuf.Timestamp partitionReadSessionCreateTime_;
      /**
       * 
       * Timestamp of providing this partition to this session by server.
       * 
       *
       * .google.protobuf.Timestamp partition_read_session_create_time = 4;
       * @return Whether the partitionReadSessionCreateTime field is set.
       */
      @java.lang.Override
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        return ((bitField0_ & 0x00000001) != 0);
      }
      /**
       * 
       * Timestamp of providing this partition to this session by server.
       * 
       *
       * .google.protobuf.Timestamp partition_read_session_create_time = 4;
       * @return The partitionReadSessionCreateTime.
       */
      @java.lang.Override
      public com.google.protobuf.Timestamp getPartitionReadSessionCreateTime() {
        return partitionReadSessionCreateTime_ == null ? com.google.protobuf.Timestamp.getDefaultInstance() : partitionReadSessionCreateTime_;
      }
      /**
       * 
       * Timestamp of providing this partition to this session by server.
       * 
       *
       * .google.protobuf.Timestamp partition_read_session_create_time = 4;
       */
      @java.lang.Override
      public com.google.protobuf.TimestampOrBuilder getPartitionReadSessionCreateTimeOrBuilder() {
        return partitionReadSessionCreateTime_ == null ? com.google.protobuf.Timestamp.getDefaultInstance() : partitionReadSessionCreateTime_;
      }

      public static final int LAST_READ_TIME_FIELD_NUMBER = 5;
      private com.google.protobuf.Timestamp lastReadTime_;
      /**
       * 
       * Timestamp of last read from this partition.
       * 
       *
       * .google.protobuf.Timestamp last_read_time = 5;
       * @return Whether the lastReadTime field is set.
       */
      @java.lang.Override
      public boolean hasLastReadTime() {
        return ((bitField0_ & 0x00000002) != 0);
      }
      /**
       * 
       * Timestamp of last read from this partition.
       * 
       *
       * .google.protobuf.Timestamp last_read_time = 5;
       * @return The lastReadTime.
       */
      @java.lang.Override
      public com.google.protobuf.Timestamp getLastReadTime() {
        return lastReadTime_ == null ? com.google.protobuf.Timestamp.getDefaultInstance() : lastReadTime_;
      }
      /**
       * 
       * Timestamp of last read from this partition.
       * 
       *
       * .google.protobuf.Timestamp last_read_time = 5;
       */
      @java.lang.Override
      public com.google.protobuf.TimestampOrBuilder getLastReadTimeOrBuilder() {
        return lastReadTime_ == null ? com.google.protobuf.Timestamp.getDefaultInstance() : lastReadTime_;
      }

      public static final int MAX_READ_TIME_LAG_FIELD_NUMBER = 6;
      private com.google.protobuf.Duration maxReadTimeLag_;
      /**
       * 
       * Maximum of differences between timestamp of read and write timestamp for all messages, read during last minute.
       * 
       *
       * .google.protobuf.Duration max_read_time_lag = 6;
       * @return Whether the maxReadTimeLag field is set.
       */
      @java.lang.Override
      public boolean hasMaxReadTimeLag() {
        return ((bitField0_ & 0x00000004) != 0);
      }
      /**
       * 
       * Maximum of differences between timestamp of read and write timestamp for all messages, read during last minute.
       * 
       *
       * .google.protobuf.Duration max_read_time_lag = 6;
       * @return The maxReadTimeLag.
       */
      @java.lang.Override
      public com.google.protobuf.Duration getMaxReadTimeLag() {
        return maxReadTimeLag_ == null ? com.google.protobuf.Duration.getDefaultInstance() : maxReadTimeLag_;
      }
      /**
       * 
       * Maximum of differences between timestamp of read and write timestamp for all messages, read during last minute.
       * 
       *
       * .google.protobuf.Duration max_read_time_lag = 6;
       */
      @java.lang.Override
      public com.google.protobuf.DurationOrBuilder getMaxReadTimeLagOrBuilder() {
        return maxReadTimeLag_ == null ? com.google.protobuf.Duration.getDefaultInstance() : maxReadTimeLag_;
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      public static final int MAX_WRITE_TIME_LAG_FIELD_NUMBER = 7;
      private com.google.protobuf.Duration maxWriteTimeLag_;
      /**
       * 
       * Maximum of differences between write timestamp and create timestamp for all messages, read during last minute.
       * 
       *
       * .google.protobuf.Duration max_write_time_lag = 7;
       * @return Whether the maxWriteTimeLag field is set.
       */
      @java.lang.Override
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        return ((bitField0_ & 0x00000008) != 0);
      }
      /**
       * 
       * Maximum of differences between write timestamp and create timestamp for all messages, read during last minute.
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       *
       * .google.protobuf.Duration max_write_time_lag = 7;
       * @return The maxWriteTimeLag.
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      @java.lang.Override
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        return maxWriteTimeLag_ == null ? com.google.protobuf.Duration.getDefaultInstance() : maxWriteTimeLag_;
      }
      /**
       * 
       * Maximum of differences between write timestamp and create timestamp for all messages, read during last minute.
       * 
       *
       * .google.protobuf.Duration max_write_time_lag = 7;
       */
      @java.lang.Override
      public com.google.protobuf.DurationOrBuilder getMaxWriteTimeLagOrBuilder() {
        return maxWriteTimeLag_ == null ? com.google.protobuf.Duration.getDefaultInstance() : maxWriteTimeLag_;
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      public static final int BYTES_READ_FIELD_NUMBER = 8;
      private tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat bytesRead_;
      /**
       * 
       * How much bytes were read during several windows statistics from this partition.
       * 
       *
       * .Ydb.Topic.MultipleWindowsStat bytes_read = 8;
       * @return Whether the bytesRead field is set.
       */
      @java.lang.Override
      public boolean hasBytesRead() {
        return ((bitField0_ & 0x00000010) != 0);
      }
      /**
       * 
       * How much bytes were read during several windows statistics from this partition.
       * 
       *
       * .Ydb.Topic.MultipleWindowsStat bytes_read = 8;
       * @return The bytesRead.
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat getBytesRead() {
        return bytesRead_ == null ? tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat.getDefaultInstance() : bytesRead_;
      }
      /**
       * 
       * How much bytes were read during several windows statistics from this partition.
       * 
       *
       * .Ydb.Topic.MultipleWindowsStat bytes_read = 8;
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.MultipleWindowsStatOrBuilder getBytesReadOrBuilder() {
        return bytesRead_ == null ? tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat.getDefaultInstance() : bytesRead_;
      }

      public static final int READER_NAME_FIELD_NUMBER = 11;
      @SuppressWarnings("serial")
      private volatile java.lang.Object readerName_ = "";
      /**
       * 
       * Read session name, provided by client.
       * 
       *
       * string reader_name = 11;
       * @return The readerName.
       */
      @java.lang.Override
      public java.lang.String getReaderName() {
        java.lang.Object ref = readerName_;
        if (ref instanceof java.lang.String) {
          return (java.lang.String) ref;
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          com.google.protobuf.ByteString bs = 
              (com.google.protobuf.ByteString) ref;
          java.lang.String s = bs.toStringUtf8();
          readerName_ = s;
          return s;
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      }
      /**
       * 
       * Read session name, provided by client.
       * 
       *
       * string reader_name = 11;
       * @return The bytes for readerName.
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      @java.lang.Override
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          com.google.protobuf.ByteString b = 
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          readerName_ = b;
          return b;
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          return (com.google.protobuf.ByteString) ref;
        }
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      public static final int CONNECTION_NODE_ID_FIELD_NUMBER = 12;
      private int connectionNodeId_ = 0;
      /**
       * 
       * Host where read session connected.
       * 
       *
       * int32 connection_node_id = 12;
       * @return The connectionNodeId.
       */
      @java.lang.Override
      public int getConnectionNodeId() {
        return connectionNodeId_;
      }

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      @java.lang.Override
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        byte isInitialized = memoizedIsInitialized;
        if (isInitialized == 1) return true;
        if (isInitialized == 0) return false;

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      @java.lang.Override
      public void writeTo(com.google.protobuf.CodedOutputStream output)
                          throws java.io.IOException {
        if (lastReadOffset_ != 0L) {
          output.writeInt64(1, lastReadOffset_);
        }
        if (committedOffset_ != 0L) {
          output.writeInt64(2, committedOffset_);
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          com.google.protobuf.GeneratedMessageV3.writeString(output, 3, readSessionId_);
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        if (((bitField0_ & 0x00000001) != 0)) {
          output.writeMessage(4, getPartitionReadSessionCreateTime());
        }
        if (((bitField0_ & 0x00000002) != 0)) {
          output.writeMessage(5, getLastReadTime());
        }
        if (((bitField0_ & 0x00000004) != 0)) {
          output.writeMessage(6, getMaxReadTimeLag());
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          output.writeMessage(7, getMaxWriteTimeLag());
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        }
        getUnknownFields().writeTo(output);
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        if (size != -1) return size;

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        if (((bitField0_ & 0x00000001) != 0)) {
          size += com.google.protobuf.CodedOutputStream
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        if (!(obj instanceof tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionConsumerStats)) {
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          return memoizedHashCode;
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        int hash = 41;
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        hash = (37 * hash) + LAST_READ_OFFSET_FIELD_NUMBER;
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          lastReadTime_ = null;
          if (lastReadTimeBuilder_ != null) {
            lastReadTimeBuilder_.dispose();
            lastReadTimeBuilder_ = null;
          }
          maxReadTimeLag_ = null;
          if (maxReadTimeLagBuilder_ != null) {
            maxReadTimeLagBuilder_.dispose();
            maxReadTimeLagBuilder_ = null;
          }
          maxWriteTimeLag_ = null;
          if (maxWriteTimeLagBuilder_ != null) {
            maxWriteTimeLagBuilder_.dispose();
            maxWriteTimeLagBuilder_ = null;
          }
          bytesRead_ = null;
          if (bytesReadBuilder_ != null) {
            bytesReadBuilder_.dispose();
            bytesReadBuilder_ = null;
          }
          readerName_ = "";
          connectionNodeId_ = 0;
          return this;
        }

        @java.lang.Override
        public com.google.protobuf.Descriptors.Descriptor
            getDescriptorForType() {
          return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_DescribeConsumerResult_PartitionConsumerStats_descriptor;
        }

        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionConsumerStats getDefaultInstanceForType() {
          return tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionConsumerStats.getDefaultInstance();
        }

        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionConsumerStats build() {
          tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionConsumerStats result = buildPartial();
          if (!result.isInitialized()) {
            throw newUninitializedMessageException(result);
          }
          return result;
        }

        @java.lang.Override
        public tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionConsumerStats buildPartial() {
          tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionConsumerStats result = new tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionConsumerStats(this);
          if (bitField0_ != 0) { buildPartial0(result); }
          onBuilt();
          return result;
        }

        private void buildPartial0(tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionConsumerStats result) {
          int from_bitField0_ = bitField0_;
          if (((from_bitField0_ & 0x00000001) != 0)) {
            result.lastReadOffset_ = lastReadOffset_;
          }
          if (((from_bitField0_ & 0x00000002) != 0)) {
            result.committedOffset_ = committedOffset_;
          }
          if (((from_bitField0_ & 0x00000004) != 0)) {
            result.readSessionId_ = readSessionId_;
          }
          int to_bitField0_ = 0;
          if (((from_bitField0_ & 0x00000008) != 0)) {
            result.partitionReadSessionCreateTime_ = partitionReadSessionCreateTimeBuilder_ == null
                ? partitionReadSessionCreateTime_
                : partitionReadSessionCreateTimeBuilder_.build();
            to_bitField0_ |= 0x00000001;
          }
          if (((from_bitField0_ & 0x00000010) != 0)) {
            result.lastReadTime_ = lastReadTimeBuilder_ == null
                ? lastReadTime_
                : lastReadTimeBuilder_.build();
            to_bitField0_ |= 0x00000002;
          }
          if (((from_bitField0_ & 0x00000020) != 0)) {
            result.maxReadTimeLag_ = maxReadTimeLagBuilder_ == null
                ? maxReadTimeLag_
                : maxReadTimeLagBuilder_.build();
            to_bitField0_ |= 0x00000004;
          }
          if (((from_bitField0_ & 0x00000040) != 0)) {
            result.maxWriteTimeLag_ = maxWriteTimeLagBuilder_ == null
                ? maxWriteTimeLag_
                : maxWriteTimeLagBuilder_.build();
            to_bitField0_ |= 0x00000008;
          }
          if (((from_bitField0_ & 0x00000080) != 0)) {
            result.bytesRead_ = bytesReadBuilder_ == null
                ? bytesRead_
                : bytesReadBuilder_.build();
            to_bitField0_ |= 0x00000010;
          }
          if (((from_bitField0_ & 0x00000100) != 0)) {
            result.readerName_ = readerName_;
          }
          if (((from_bitField0_ & 0x00000200) != 0)) {
            result.connectionNodeId_ = connectionNodeId_;
          }
          result.bitField0_ |= to_bitField0_;
        }

        @java.lang.Override
        public Builder clone() {
          return super.clone();
        }
        @java.lang.Override
        public Builder setField(
            com.google.protobuf.Descriptors.FieldDescriptor field,
            java.lang.Object value) {
          return super.setField(field, value);
        }
        @java.lang.Override
        public Builder clearField(
            com.google.protobuf.Descriptors.FieldDescriptor field) {
          return super.clearField(field);
        }
        @java.lang.Override
        public Builder clearOneof(
            com.google.protobuf.Descriptors.OneofDescriptor oneof) {
          return super.clearOneof(oneof);
        }
        @java.lang.Override
        public Builder setRepeatedField(
            com.google.protobuf.Descriptors.FieldDescriptor field,
            int index, java.lang.Object value) {
          return super.setRepeatedField(field, index, value);
        }
        @java.lang.Override
        public Builder addRepeatedField(
            com.google.protobuf.Descriptors.FieldDescriptor field,
            java.lang.Object value) {
          return super.addRepeatedField(field, value);
        }
        @java.lang.Override
        public Builder mergeFrom(com.google.protobuf.Message other) {
          if (other instanceof tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionConsumerStats) {
            return mergeFrom((tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionConsumerStats)other);
          } else {
            super.mergeFrom(other);
            return this;
          }
        }

        public Builder mergeFrom(tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionConsumerStats other) {
          if (other == tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionConsumerStats.getDefaultInstance()) return this;
          if (other.getLastReadOffset() != 0L) {
            setLastReadOffset(other.getLastReadOffset());
          }
          if (other.getCommittedOffset() != 0L) {
            setCommittedOffset(other.getCommittedOffset());
          }
          if (!other.getReadSessionId().isEmpty()) {
            readSessionId_ = other.readSessionId_;
            bitField0_ |= 0x00000004;
            onChanged();
          }
          if (other.hasPartitionReadSessionCreateTime()) {
            mergePartitionReadSessionCreateTime(other.getPartitionReadSessionCreateTime());
          }
          if (other.hasLastReadTime()) {
            mergeLastReadTime(other.getLastReadTime());
          }
          if (other.hasMaxReadTimeLag()) {
            mergeMaxReadTimeLag(other.getMaxReadTimeLag());
          }
          if (other.hasMaxWriteTimeLag()) {
            mergeMaxWriteTimeLag(other.getMaxWriteTimeLag());
          }
          if (other.hasBytesRead()) {
            mergeBytesRead(other.getBytesRead());
          }
          if (!other.getReaderName().isEmpty()) {
            readerName_ = other.readerName_;
            bitField0_ |= 0x00000100;
            onChanged();
          }
          if (other.getConnectionNodeId() != 0) {
            setConnectionNodeId(other.getConnectionNodeId());
          }
          this.mergeUnknownFields(other.getUnknownFields());
          onChanged();
          return this;
        }

        @java.lang.Override
        public final boolean isInitialized() {
          return true;
        }

        @java.lang.Override
        public Builder mergeFrom(
            com.google.protobuf.CodedInputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws java.io.IOException {
          if (extensionRegistry == null) {
            throw new java.lang.NullPointerException();
          }
          try {
            boolean done = false;
            while (!done) {
              int tag = input.readTag();
              switch (tag) {
                case 0:
                  done = true;
                  break;
                case 8: {
                  lastReadOffset_ = input.readInt64();
                  bitField0_ |= 0x00000001;
                  break;
                } // case 8
                case 16: {
                  committedOffset_ = input.readInt64();
                  bitField0_ |= 0x00000002;
                  break;
                } // case 16
                case 26: {
                  readSessionId_ = input.readStringRequireUtf8();
                  bitField0_ |= 0x00000004;
                  break;
                } // case 26
                case 34: {
                  input.readMessage(
                      getPartitionReadSessionCreateTimeFieldBuilder().getBuilder(),
                      extensionRegistry);
                  bitField0_ |= 0x00000008;
                  break;
                } // case 34
                case 42: {
                  input.readMessage(
                      getLastReadTimeFieldBuilder().getBuilder(),
                      extensionRegistry);
                  bitField0_ |= 0x00000010;
                  break;
                } // case 42
                case 50: {
                  input.readMessage(
                      getMaxReadTimeLagFieldBuilder().getBuilder(),
                      extensionRegistry);
                  bitField0_ |= 0x00000020;
                  break;
                } // case 50
                case 58: {
                  input.readMessage(
                      getMaxWriteTimeLagFieldBuilder().getBuilder(),
                      extensionRegistry);
                  bitField0_ |= 0x00000040;
                  break;
                } // case 58
                case 66: {
                  input.readMessage(
                      getBytesReadFieldBuilder().getBuilder(),
                      extensionRegistry);
                  bitField0_ |= 0x00000080;
                  break;
                } // case 66
                case 90: {
                  readerName_ = input.readStringRequireUtf8();
                  bitField0_ |= 0x00000100;
                  break;
                } // case 90
                case 96: {
                  connectionNodeId_ = input.readInt32();
                  bitField0_ |= 0x00000200;
                  break;
                } // case 96
                default: {
                  if (!super.parseUnknownField(input, extensionRegistry, tag)) {
                    done = true; // was an endgroup tag
                  }
                  break;
                } // default:
              } // switch (tag)
            } // while (!done)
          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
            throw e.unwrapIOException();
          } finally {
            onChanged();
          } // finally
          return this;
        }
        private int bitField0_;

        private long lastReadOffset_ ;
        /**
         * 
         * Last read offset from this partition.
         * 
         *
         * int64 last_read_offset = 1;
         * @return The lastReadOffset.
         */
        @java.lang.Override
        public long getLastReadOffset() {
          return lastReadOffset_;
        }
        /**
         * 
         * Last read offset from this partition.
         * 
         *
         * int64 last_read_offset = 1;
         * @param value The lastReadOffset to set.
         * @return This builder for chaining.
         */
        public Builder setLastReadOffset(long value) {

          lastReadOffset_ = value;
          bitField0_ |= 0x00000001;
          onChanged();
          return this;
        }
        /**
         * 
         * Last read offset from this partition.
         * 
         *
         * int64 last_read_offset = 1;
         * @return This builder for chaining.
         */
        public Builder clearLastReadOffset() {
          bitField0_ = (bitField0_ & ~0x00000001);
          lastReadOffset_ = 0L;
          onChanged();
          return this;
        }

        private long committedOffset_ ;
        /**
         * 
         * Committed offset for this partition.
         * 
         *
         * int64 committed_offset = 2;
         * @return The committedOffset.
         */
        @java.lang.Override
        public long getCommittedOffset() {
          return committedOffset_;
        }
        /**
         * 
         * Committed offset for this partition.
         * 
         *
         * int64 committed_offset = 2;
         * @param value The committedOffset to set.
         * @return This builder for chaining.
         */
        public Builder setCommittedOffset(long value) {

          committedOffset_ = value;
          bitField0_ |= 0x00000002;
          onChanged();
          return this;
        }
        /**
         * 
         * Committed offset for this partition.
         * 
         *
         * int64 committed_offset = 2;
         * @return This builder for chaining.
         */
        public Builder clearCommittedOffset() {
          bitField0_ = (bitField0_ & ~0x00000002);
          committedOffset_ = 0L;
          onChanged();
          return this;
        }

        private java.lang.Object readSessionId_ = "";
        /**
         * 
         * Reading this partition read session identifier.
         * 
         *
         * string read_session_id = 3;
         * @return The readSessionId.
         */
        public java.lang.String getReadSessionId() {
          java.lang.Object ref = readSessionId_;
          if (!(ref instanceof java.lang.String)) {
            com.google.protobuf.ByteString bs =
                (com.google.protobuf.ByteString) ref;
            java.lang.String s = bs.toStringUtf8();
            readSessionId_ = s;
            return s;
          } else {
            return (java.lang.String) ref;
          }
        }
        /**
         * 
         * Reading this partition read session identifier.
         * 
         *
         * string read_session_id = 3;
         * @return The bytes for readSessionId.
         */
        public com.google.protobuf.ByteString
            getReadSessionIdBytes() {
          java.lang.Object ref = readSessionId_;
          if (ref instanceof String) {
            com.google.protobuf.ByteString b = 
                com.google.protobuf.ByteString.copyFromUtf8(
                    (java.lang.String) ref);
            readSessionId_ = b;
            return b;
          } else {
            return (com.google.protobuf.ByteString) ref;
          }
        }
        /**
         * 
         * Reading this partition read session identifier.
         * 
         *
         * string read_session_id = 3;
         * @param value The readSessionId to set.
         * @return This builder for chaining.
         */
        public Builder setReadSessionId(
            java.lang.String value) {
          if (value == null) { throw new NullPointerException(); }
          readSessionId_ = value;
          bitField0_ |= 0x00000004;
          onChanged();
          return this;
        }
        /**
         * 
         * Reading this partition read session identifier.
         * 
         *
         * string read_session_id = 3;
         * @return This builder for chaining.
         */
        public Builder clearReadSessionId() {
          readSessionId_ = getDefaultInstance().getReadSessionId();
          bitField0_ = (bitField0_ & ~0x00000004);
          onChanged();
          return this;
        }
        /**
         * 
         * Reading this partition read session identifier.
         * 
         *
         * string read_session_id = 3;
         * @param value The bytes for readSessionId to set.
         * @return This builder for chaining.
         */
        public Builder setReadSessionIdBytes(
            com.google.protobuf.ByteString value) {
          if (value == null) { throw new NullPointerException(); }
          checkByteStringIsUtf8(value);
          readSessionId_ = value;
          bitField0_ |= 0x00000004;
          onChanged();
          return this;
        }

        private com.google.protobuf.Timestamp partitionReadSessionCreateTime_;
        private com.google.protobuf.SingleFieldBuilderV3<
            com.google.protobuf.Timestamp, com.google.protobuf.Timestamp.Builder, com.google.protobuf.TimestampOrBuilder> partitionReadSessionCreateTimeBuilder_;
        /**
         * 
         * Timestamp of providing this partition to this session by server.
         * 
         *
         * .google.protobuf.Timestamp partition_read_session_create_time = 4;
         * @return Whether the partitionReadSessionCreateTime field is set.
         */
        public boolean hasPartitionReadSessionCreateTime() {
          return ((bitField0_ & 0x00000008) != 0);
        }
        /**
         * 
         * Timestamp of providing this partition to this session by server.
         * 
         *
         * .google.protobuf.Timestamp partition_read_session_create_time = 4;
         * @return The partitionReadSessionCreateTime.
         */
        public com.google.protobuf.Timestamp getPartitionReadSessionCreateTime() {
          if (partitionReadSessionCreateTimeBuilder_ == null) {
            return partitionReadSessionCreateTime_ == null ? com.google.protobuf.Timestamp.getDefaultInstance() : partitionReadSessionCreateTime_;
          } else {
            return partitionReadSessionCreateTimeBuilder_.getMessage();
          }
        }
        /**
         * 
         * Timestamp of providing this partition to this session by server.
         * 
         *
         * .google.protobuf.Timestamp partition_read_session_create_time = 4;
         */
        public Builder setPartitionReadSessionCreateTime(com.google.protobuf.Timestamp value) {
          if (partitionReadSessionCreateTimeBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            partitionReadSessionCreateTime_ = value;
          } else {
            partitionReadSessionCreateTimeBuilder_.setMessage(value);
          }
          bitField0_ |= 0x00000008;
          onChanged();
          return this;
        }
        /**
         * 
         * Timestamp of providing this partition to this session by server.
         * 
         *
         * .google.protobuf.Timestamp partition_read_session_create_time = 4;
         */
        public Builder setPartitionReadSessionCreateTime(
            com.google.protobuf.Timestamp.Builder builderForValue) {
          if (partitionReadSessionCreateTimeBuilder_ == null) {
            partitionReadSessionCreateTime_ = builderForValue.build();
          } else {
            partitionReadSessionCreateTimeBuilder_.setMessage(builderForValue.build());
          }
          bitField0_ |= 0x00000008;
          onChanged();
          return this;
        }
        /**
         * 
         * Timestamp of providing this partition to this session by server.
         * 
         *
         * .google.protobuf.Timestamp partition_read_session_create_time = 4;
         */
        public Builder mergePartitionReadSessionCreateTime(com.google.protobuf.Timestamp value) {
          if (partitionReadSessionCreateTimeBuilder_ == null) {
            if (((bitField0_ & 0x00000008) != 0) &&
              partitionReadSessionCreateTime_ != null &&
              partitionReadSessionCreateTime_ != com.google.protobuf.Timestamp.getDefaultInstance()) {
              getPartitionReadSessionCreateTimeBuilder().mergeFrom(value);
            } else {
              partitionReadSessionCreateTime_ = value;
            }
          } else {
            partitionReadSessionCreateTimeBuilder_.mergeFrom(value);
          }
          if (partitionReadSessionCreateTime_ != null) {
            bitField0_ |= 0x00000008;
            onChanged();
          }
          return this;
        }
        /**
         * 
         * Timestamp of providing this partition to this session by server.
         * 
         *
         * .google.protobuf.Timestamp partition_read_session_create_time = 4;
         */
        public Builder clearPartitionReadSessionCreateTime() {
          bitField0_ = (bitField0_ & ~0x00000008);
          partitionReadSessionCreateTime_ = null;
          if (partitionReadSessionCreateTimeBuilder_ != null) {
            partitionReadSessionCreateTimeBuilder_.dispose();
            partitionReadSessionCreateTimeBuilder_ = null;
          }
          onChanged();
          return this;
        }
        /**
         * 
         * Timestamp of providing this partition to this session by server.
         * 
         *
         * .google.protobuf.Timestamp partition_read_session_create_time = 4;
         */
        public com.google.protobuf.Timestamp.Builder getPartitionReadSessionCreateTimeBuilder() {
          bitField0_ |= 0x00000008;
          onChanged();
          return getPartitionReadSessionCreateTimeFieldBuilder().getBuilder();
        }
        /**
         * 
         * Timestamp of providing this partition to this session by server.
         * 
         *
         * .google.protobuf.Timestamp partition_read_session_create_time = 4;
         */
        public com.google.protobuf.TimestampOrBuilder getPartitionReadSessionCreateTimeOrBuilder() {
          if (partitionReadSessionCreateTimeBuilder_ != null) {
            return partitionReadSessionCreateTimeBuilder_.getMessageOrBuilder();
          } else {
            return partitionReadSessionCreateTime_ == null ?
                com.google.protobuf.Timestamp.getDefaultInstance() : partitionReadSessionCreateTime_;
          }
        }
        /**
         * 
         * Timestamp of providing this partition to this session by server.
         * 
         *
         * .google.protobuf.Timestamp partition_read_session_create_time = 4;
         */
        private com.google.protobuf.SingleFieldBuilderV3<
            com.google.protobuf.Timestamp, com.google.protobuf.Timestamp.Builder, com.google.protobuf.TimestampOrBuilder> 
            getPartitionReadSessionCreateTimeFieldBuilder() {
          if (partitionReadSessionCreateTimeBuilder_ == null) {
            partitionReadSessionCreateTimeBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
                com.google.protobuf.Timestamp, com.google.protobuf.Timestamp.Builder, com.google.protobuf.TimestampOrBuilder>(
                    getPartitionReadSessionCreateTime(),
                    getParentForChildren(),
                    isClean());
            partitionReadSessionCreateTime_ = null;
          }
          return partitionReadSessionCreateTimeBuilder_;
        }

        private com.google.protobuf.Timestamp lastReadTime_;
        private com.google.protobuf.SingleFieldBuilderV3<
            com.google.protobuf.Timestamp, com.google.protobuf.Timestamp.Builder, com.google.protobuf.TimestampOrBuilder> lastReadTimeBuilder_;
        /**
         * 
         * Timestamp of last read from this partition.
         * 
         *
         * .google.protobuf.Timestamp last_read_time = 5;
         * @return Whether the lastReadTime field is set.
         */
        public boolean hasLastReadTime() {
          return ((bitField0_ & 0x00000010) != 0);
        }
        /**
         * 
         * Timestamp of last read from this partition.
         * 
         *
         * .google.protobuf.Timestamp last_read_time = 5;
         * @return The lastReadTime.
         */
        public com.google.protobuf.Timestamp getLastReadTime() {
          if (lastReadTimeBuilder_ == null) {
            return lastReadTime_ == null ? com.google.protobuf.Timestamp.getDefaultInstance() : lastReadTime_;
          } else {
            return lastReadTimeBuilder_.getMessage();
          }
        }
        /**
         * 
         * Timestamp of last read from this partition.
         * 
         *
         * .google.protobuf.Timestamp last_read_time = 5;
         */
        public Builder setLastReadTime(com.google.protobuf.Timestamp value) {
          if (lastReadTimeBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            lastReadTime_ = value;
          } else {
            lastReadTimeBuilder_.setMessage(value);
          }
          bitField0_ |= 0x00000010;
          onChanged();
          return this;
        }
        /**
         * 
         * Timestamp of last read from this partition.
         * 
         *
         * .google.protobuf.Timestamp last_read_time = 5;
         */
        public Builder setLastReadTime(
            com.google.protobuf.Timestamp.Builder builderForValue) {
          if (lastReadTimeBuilder_ == null) {
            lastReadTime_ = builderForValue.build();
          } else {
            lastReadTimeBuilder_.setMessage(builderForValue.build());
          }
          bitField0_ |= 0x00000010;
          onChanged();
          return this;
        }
        /**
         * 
         * Timestamp of last read from this partition.
         * 
         *
         * .google.protobuf.Timestamp last_read_time = 5;
         */
        public Builder mergeLastReadTime(com.google.protobuf.Timestamp value) {
          if (lastReadTimeBuilder_ == null) {
            if (((bitField0_ & 0x00000010) != 0) &&
              lastReadTime_ != null &&
              lastReadTime_ != com.google.protobuf.Timestamp.getDefaultInstance()) {
              getLastReadTimeBuilder().mergeFrom(value);
            } else {
              lastReadTime_ = value;
            }
          } else {
            lastReadTimeBuilder_.mergeFrom(value);
          }
          if (lastReadTime_ != null) {
            bitField0_ |= 0x00000010;
            onChanged();
          }
          return this;
        }
        /**
         * 
         * Timestamp of last read from this partition.
         * 
         *
         * .google.protobuf.Timestamp last_read_time = 5;
         */
        public Builder clearLastReadTime() {
          bitField0_ = (bitField0_ & ~0x00000010);
          lastReadTime_ = null;
          if (lastReadTimeBuilder_ != null) {
            lastReadTimeBuilder_.dispose();
            lastReadTimeBuilder_ = null;
          }
          onChanged();
          return this;
        }
        /**
         * 
         * Timestamp of last read from this partition.
         * 
         *
         * .google.protobuf.Timestamp last_read_time = 5;
         */
        public com.google.protobuf.Timestamp.Builder getLastReadTimeBuilder() {
          bitField0_ |= 0x00000010;
          onChanged();
          return getLastReadTimeFieldBuilder().getBuilder();
        }
        /**
         * 
         * Timestamp of last read from this partition.
         * 
         *
         * .google.protobuf.Timestamp last_read_time = 5;
         */
        public com.google.protobuf.TimestampOrBuilder getLastReadTimeOrBuilder() {
          if (lastReadTimeBuilder_ != null) {
            return lastReadTimeBuilder_.getMessageOrBuilder();
          } else {
            return lastReadTime_ == null ?
                com.google.protobuf.Timestamp.getDefaultInstance() : lastReadTime_;
          }
        }
        /**
         * 
         * Timestamp of last read from this partition.
         * 
         *
         * .google.protobuf.Timestamp last_read_time = 5;
         */
        private com.google.protobuf.SingleFieldBuilderV3<
            com.google.protobuf.Timestamp, com.google.protobuf.Timestamp.Builder, com.google.protobuf.TimestampOrBuilder> 
            getLastReadTimeFieldBuilder() {
          if (lastReadTimeBuilder_ == null) {
            lastReadTimeBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
                com.google.protobuf.Timestamp, com.google.protobuf.Timestamp.Builder, com.google.protobuf.TimestampOrBuilder>(
                    getLastReadTime(),
                    getParentForChildren(),
                    isClean());
            lastReadTime_ = null;
          }
          return lastReadTimeBuilder_;
        }

        private com.google.protobuf.Duration maxReadTimeLag_;
        private com.google.protobuf.SingleFieldBuilderV3<
            com.google.protobuf.Duration, com.google.protobuf.Duration.Builder, com.google.protobuf.DurationOrBuilder> maxReadTimeLagBuilder_;
        /**
         * 
         * Maximum of differences between timestamp of read and write timestamp for all messages, read during last minute.
         * 
         *
         * .google.protobuf.Duration max_read_time_lag = 6;
         * @return Whether the maxReadTimeLag field is set.
         */
        public boolean hasMaxReadTimeLag() {
          return ((bitField0_ & 0x00000020) != 0);
        }
        /**
         * 
         * Maximum of differences between timestamp of read and write timestamp for all messages, read during last minute.
         * 
         *
         * .google.protobuf.Duration max_read_time_lag = 6;
         * @return The maxReadTimeLag.
         */
        public com.google.protobuf.Duration getMaxReadTimeLag() {
          if (maxReadTimeLagBuilder_ == null) {
            return maxReadTimeLag_ == null ? com.google.protobuf.Duration.getDefaultInstance() : maxReadTimeLag_;
          } else {
            return maxReadTimeLagBuilder_.getMessage();
          }
        }
        /**
         * 
         * Maximum of differences between timestamp of read and write timestamp for all messages, read during last minute.
         * 
         *
         * .google.protobuf.Duration max_read_time_lag = 6;
         */
        public Builder setMaxReadTimeLag(com.google.protobuf.Duration value) {
          if (maxReadTimeLagBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            maxReadTimeLag_ = value;
          } else {
            maxReadTimeLagBuilder_.setMessage(value);
          }
          bitField0_ |= 0x00000020;
          onChanged();
          return this;
        }
        /**
         * 
         * Maximum of differences between timestamp of read and write timestamp for all messages, read during last minute.
         * 
         *
         * .google.protobuf.Duration max_read_time_lag = 6;
         */
        public Builder setMaxReadTimeLag(
            com.google.protobuf.Duration.Builder builderForValue) {
          if (maxReadTimeLagBuilder_ == null) {
            maxReadTimeLag_ = builderForValue.build();
          } else {
            maxReadTimeLagBuilder_.setMessage(builderForValue.build());
          }
          bitField0_ |= 0x00000020;
          onChanged();
          return this;
        }
        /**
         * 
         * Maximum of differences between timestamp of read and write timestamp for all messages, read during last minute.
         * 
         *
         * .google.protobuf.Duration max_read_time_lag = 6;
         */
        public Builder mergeMaxReadTimeLag(com.google.protobuf.Duration value) {
          if (maxReadTimeLagBuilder_ == null) {
            if (((bitField0_ & 0x00000020) != 0) &&
              maxReadTimeLag_ != null &&
              maxReadTimeLag_ != com.google.protobuf.Duration.getDefaultInstance()) {
              getMaxReadTimeLagBuilder().mergeFrom(value);
            } else {
              maxReadTimeLag_ = value;
            }
          } else {
            maxReadTimeLagBuilder_.mergeFrom(value);
          }
          if (maxReadTimeLag_ != null) {
            bitField0_ |= 0x00000020;
            onChanged();
          }
          return this;
        }
        /**
         * 
         * Maximum of differences between timestamp of read and write timestamp for all messages, read during last minute.
         * 
         *
         * .google.protobuf.Duration max_read_time_lag = 6;
         */
        public Builder clearMaxReadTimeLag() {
          bitField0_ = (bitField0_ & ~0x00000020);
          maxReadTimeLag_ = null;
          if (maxReadTimeLagBuilder_ != null) {
            maxReadTimeLagBuilder_.dispose();
            maxReadTimeLagBuilder_ = null;
          }
          onChanged();
          return this;
        }
        /**
         * 
         * Maximum of differences between timestamp of read and write timestamp for all messages, read during last minute.
         * 
         *
         * .google.protobuf.Duration max_read_time_lag = 6;
         */
        public com.google.protobuf.Duration.Builder getMaxReadTimeLagBuilder() {
          bitField0_ |= 0x00000020;
          onChanged();
          return getMaxReadTimeLagFieldBuilder().getBuilder();
        }
        /**
         * 
         * Maximum of differences between timestamp of read and write timestamp for all messages, read during last minute.
         * 
         *
         * .google.protobuf.Duration max_read_time_lag = 6;
         */
        public com.google.protobuf.DurationOrBuilder getMaxReadTimeLagOrBuilder() {
          if (maxReadTimeLagBuilder_ != null) {
            return maxReadTimeLagBuilder_.getMessageOrBuilder();
          } else {
            return maxReadTimeLag_ == null ?
                com.google.protobuf.Duration.getDefaultInstance() : maxReadTimeLag_;
          }
        }
        /**
         * 
         * Maximum of differences between timestamp of read and write timestamp for all messages, read during last minute.
         * 
         *
         * .google.protobuf.Duration max_read_time_lag = 6;
         */
        private com.google.protobuf.SingleFieldBuilderV3<
            com.google.protobuf.Duration, com.google.protobuf.Duration.Builder, com.google.protobuf.DurationOrBuilder> 
            getMaxReadTimeLagFieldBuilder() {
          if (maxReadTimeLagBuilder_ == null) {
            maxReadTimeLagBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
                com.google.protobuf.Duration, com.google.protobuf.Duration.Builder, com.google.protobuf.DurationOrBuilder>(
                    getMaxReadTimeLag(),
                    getParentForChildren(),
                    isClean());
            maxReadTimeLag_ = null;
          }
          return maxReadTimeLagBuilder_;
        }

        private com.google.protobuf.Duration maxWriteTimeLag_;
        private com.google.protobuf.SingleFieldBuilderV3<
            com.google.protobuf.Duration, com.google.protobuf.Duration.Builder, com.google.protobuf.DurationOrBuilder> maxWriteTimeLagBuilder_;
        /**
         * 
         * Maximum of differences between write timestamp and create timestamp for all messages, read during last minute.
         * 
         *
         * .google.protobuf.Duration max_write_time_lag = 7;
         * @return Whether the maxWriteTimeLag field is set.
         */
        public boolean hasMaxWriteTimeLag() {
          return ((bitField0_ & 0x00000040) != 0);
        }
        /**
         * 
         * Maximum of differences between write timestamp and create timestamp for all messages, read during last minute.
         * 
         *
         * .google.protobuf.Duration max_write_time_lag = 7;
         * @return The maxWriteTimeLag.
         */
        public com.google.protobuf.Duration getMaxWriteTimeLag() {
          if (maxWriteTimeLagBuilder_ == null) {
            return maxWriteTimeLag_ == null ? com.google.protobuf.Duration.getDefaultInstance() : maxWriteTimeLag_;
          } else {
            return maxWriteTimeLagBuilder_.getMessage();
          }
        }
        /**
         * 
         * Maximum of differences between write timestamp and create timestamp for all messages, read during last minute.
         * 
         *
         * .google.protobuf.Duration max_write_time_lag = 7;
         */
        public Builder setMaxWriteTimeLag(com.google.protobuf.Duration value) {
          if (maxWriteTimeLagBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            maxWriteTimeLag_ = value;
          } else {
            maxWriteTimeLagBuilder_.setMessage(value);
          }
          bitField0_ |= 0x00000040;
          onChanged();
          return this;
        }
        /**
         * 
         * Maximum of differences between write timestamp and create timestamp for all messages, read during last minute.
         * 
         *
         * .google.protobuf.Duration max_write_time_lag = 7;
         */
        public Builder setMaxWriteTimeLag(
            com.google.protobuf.Duration.Builder builderForValue) {
          if (maxWriteTimeLagBuilder_ == null) {
            maxWriteTimeLag_ = builderForValue.build();
          } else {
            maxWriteTimeLagBuilder_.setMessage(builderForValue.build());
          }
          bitField0_ |= 0x00000040;
          onChanged();
          return this;
        }
        /**
         * 
         * Maximum of differences between write timestamp and create timestamp for all messages, read during last minute.
         * 
         *
         * .google.protobuf.Duration max_write_time_lag = 7;
         */
        public Builder mergeMaxWriteTimeLag(com.google.protobuf.Duration value) {
          if (maxWriteTimeLagBuilder_ == null) {
            if (((bitField0_ & 0x00000040) != 0) &&
              maxWriteTimeLag_ != null &&
              maxWriteTimeLag_ != com.google.protobuf.Duration.getDefaultInstance()) {
              getMaxWriteTimeLagBuilder().mergeFrom(value);
            } else {
              maxWriteTimeLag_ = value;
            }
          } else {
            maxWriteTimeLagBuilder_.mergeFrom(value);
          }
          if (maxWriteTimeLag_ != null) {
            bitField0_ |= 0x00000040;
            onChanged();
          }
          return this;
        }
        /**
         * 
         * Maximum of differences between write timestamp and create timestamp for all messages, read during last minute.
         * 
         *
         * .google.protobuf.Duration max_write_time_lag = 7;
         */
        public Builder clearMaxWriteTimeLag() {
          bitField0_ = (bitField0_ & ~0x00000040);
          maxWriteTimeLag_ = null;
          if (maxWriteTimeLagBuilder_ != null) {
            maxWriteTimeLagBuilder_.dispose();
            maxWriteTimeLagBuilder_ = null;
          }
          onChanged();
          return this;
        }
        /**
         * 
         * Maximum of differences between write timestamp and create timestamp for all messages, read during last minute.
         * 
         *
         * .google.protobuf.Duration max_write_time_lag = 7;
         */
        public com.google.protobuf.Duration.Builder getMaxWriteTimeLagBuilder() {
          bitField0_ |= 0x00000040;
          onChanged();
          return getMaxWriteTimeLagFieldBuilder().getBuilder();
        }
        /**
         * 
         * Maximum of differences between write timestamp and create timestamp for all messages, read during last minute.
         * 
         *
         * .google.protobuf.Duration max_write_time_lag = 7;
         */
        public com.google.protobuf.DurationOrBuilder getMaxWriteTimeLagOrBuilder() {
          if (maxWriteTimeLagBuilder_ != null) {
            return maxWriteTimeLagBuilder_.getMessageOrBuilder();
          } else {
            return maxWriteTimeLag_ == null ?
                com.google.protobuf.Duration.getDefaultInstance() : maxWriteTimeLag_;
          }
        }
        /**
         * 
         * Maximum of differences between write timestamp and create timestamp for all messages, read during last minute.
         * 
         *
         * .google.protobuf.Duration max_write_time_lag = 7;
         */
        private com.google.protobuf.SingleFieldBuilderV3<
            com.google.protobuf.Duration, com.google.protobuf.Duration.Builder, com.google.protobuf.DurationOrBuilder> 
            getMaxWriteTimeLagFieldBuilder() {
          if (maxWriteTimeLagBuilder_ == null) {
            maxWriteTimeLagBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
                com.google.protobuf.Duration, com.google.protobuf.Duration.Builder, com.google.protobuf.DurationOrBuilder>(
                    getMaxWriteTimeLag(),
                    getParentForChildren(),
                    isClean());
            maxWriteTimeLag_ = null;
          }
          return maxWriteTimeLagBuilder_;
        }

        private tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat bytesRead_;
        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat, tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat.Builder, tech.ydb.proto.topic.YdbTopic.MultipleWindowsStatOrBuilder> bytesReadBuilder_;
        /**
         * 
         * How much bytes were read during several windows statistics from this partition.
         * 
         *
         * .Ydb.Topic.MultipleWindowsStat bytes_read = 8;
         * @return Whether the bytesRead field is set.
         */
        public boolean hasBytesRead() {
          return ((bitField0_ & 0x00000080) != 0);
        }
        /**
         * 
         * How much bytes were read during several windows statistics from this partition.
         * 
         *
         * .Ydb.Topic.MultipleWindowsStat bytes_read = 8;
         * @return The bytesRead.
         */
        public tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat getBytesRead() {
          if (bytesReadBuilder_ == null) {
            return bytesRead_ == null ? tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat.getDefaultInstance() : bytesRead_;
          } else {
            return bytesReadBuilder_.getMessage();
          }
        }
        /**
         * 
         * How much bytes were read during several windows statistics from this partition.
         * 
         *
         * .Ydb.Topic.MultipleWindowsStat bytes_read = 8;
         */
        public Builder setBytesRead(tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat value) {
          if (bytesReadBuilder_ == null) {
            if (value == null) {
              throw new NullPointerException();
            }
            bytesRead_ = value;
          } else {
            bytesReadBuilder_.setMessage(value);
          }
          bitField0_ |= 0x00000080;
          onChanged();
          return this;
        }
        /**
         * 
         * How much bytes were read during several windows statistics from this partition.
         * 
         *
         * .Ydb.Topic.MultipleWindowsStat bytes_read = 8;
         */
        public Builder setBytesRead(
            tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat.Builder builderForValue) {
          if (bytesReadBuilder_ == null) {
            bytesRead_ = builderForValue.build();
          } else {
            bytesReadBuilder_.setMessage(builderForValue.build());
          }
          bitField0_ |= 0x00000080;
          onChanged();
          return this;
        }
        /**
         * 
         * How much bytes were read during several windows statistics from this partition.
         * 
         *
         * .Ydb.Topic.MultipleWindowsStat bytes_read = 8;
         */
        public Builder mergeBytesRead(tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat value) {
          if (bytesReadBuilder_ == null) {
            if (((bitField0_ & 0x00000080) != 0) &&
              bytesRead_ != null &&
              bytesRead_ != tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat.getDefaultInstance()) {
              getBytesReadBuilder().mergeFrom(value);
            } else {
              bytesRead_ = value;
            }
          } else {
            bytesReadBuilder_.mergeFrom(value);
          }
          if (bytesRead_ != null) {
            bitField0_ |= 0x00000080;
            onChanged();
          }
          return this;
        }
        /**
         * 
         * How much bytes were read during several windows statistics from this partition.
         * 
         *
         * .Ydb.Topic.MultipleWindowsStat bytes_read = 8;
         */
        public Builder clearBytesRead() {
          bitField0_ = (bitField0_ & ~0x00000080);
          bytesRead_ = null;
          if (bytesReadBuilder_ != null) {
            bytesReadBuilder_.dispose();
            bytesReadBuilder_ = null;
          }
          onChanged();
          return this;
        }
        /**
         * 
         * How much bytes were read during several windows statistics from this partition.
         * 
         *
         * .Ydb.Topic.MultipleWindowsStat bytes_read = 8;
         */
        public tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat.Builder getBytesReadBuilder() {
          bitField0_ |= 0x00000080;
          onChanged();
          return getBytesReadFieldBuilder().getBuilder();
        }
        /**
         * 
         * How much bytes were read during several windows statistics from this partition.
         * 
         *
         * .Ydb.Topic.MultipleWindowsStat bytes_read = 8;
         */
        public tech.ydb.proto.topic.YdbTopic.MultipleWindowsStatOrBuilder getBytesReadOrBuilder() {
          if (bytesReadBuilder_ != null) {
            return bytesReadBuilder_.getMessageOrBuilder();
          } else {
            return bytesRead_ == null ?
                tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat.getDefaultInstance() : bytesRead_;
          }
        }
        /**
         * 
         * How much bytes were read during several windows statistics from this partition.
         * 
         *
         * .Ydb.Topic.MultipleWindowsStat bytes_read = 8;
         */
        private com.google.protobuf.SingleFieldBuilderV3<
            tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat, tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat.Builder, tech.ydb.proto.topic.YdbTopic.MultipleWindowsStatOrBuilder> 
            getBytesReadFieldBuilder() {
          if (bytesReadBuilder_ == null) {
            bytesReadBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
                tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat, tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat.Builder, tech.ydb.proto.topic.YdbTopic.MultipleWindowsStatOrBuilder>(
                    getBytesRead(),
                    getParentForChildren(),
                    isClean());
            bytesRead_ = null;
          }
          return bytesReadBuilder_;
        }

        private java.lang.Object readerName_ = "";
        /**
         * 
         * Read session name, provided by client.
         * 
         *
         * string reader_name = 11;
         * @return The readerName.
         */
        public java.lang.String getReaderName() {
          java.lang.Object ref = readerName_;
          if (!(ref instanceof java.lang.String)) {
            com.google.protobuf.ByteString bs =
                (com.google.protobuf.ByteString) ref;
            java.lang.String s = bs.toStringUtf8();
            readerName_ = s;
            return s;
          } else {
            return (java.lang.String) ref;
          }
        }
        /**
         * 
         * Read session name, provided by client.
         * 
         *
         * string reader_name = 11;
         * @return The bytes for readerName.
         */
        public com.google.protobuf.ByteString
            getReaderNameBytes() {
          java.lang.Object ref = readerName_;
          if (ref instanceof String) {
            com.google.protobuf.ByteString b = 
                com.google.protobuf.ByteString.copyFromUtf8(
                    (java.lang.String) ref);
            readerName_ = b;
            return b;
          } else {
            return (com.google.protobuf.ByteString) ref;
          }
        }
        /**
         * 
         * Read session name, provided by client.
         * 
         *
         * string reader_name = 11;
         * @param value The readerName to set.
         * @return This builder for chaining.
         */
        public Builder setReaderName(
            java.lang.String value) {
          if (value == null) { throw new NullPointerException(); }
          readerName_ = value;
          bitField0_ |= 0x00000100;
          onChanged();
          return this;
        }
        /**
         * 
         * Read session name, provided by client.
         * 
         *
         * string reader_name = 11;
         * @return This builder for chaining.
         */
        public Builder clearReaderName() {
          readerName_ = getDefaultInstance().getReaderName();
          bitField0_ = (bitField0_ & ~0x00000100);
          onChanged();
          return this;
        }
        /**
         * 
         * Read session name, provided by client.
         * 
         *
         * string reader_name = 11;
         * @param value The bytes for readerName to set.
         * @return This builder for chaining.
         */
        public Builder setReaderNameBytes(
            com.google.protobuf.ByteString value) {
          if (value == null) { throw new NullPointerException(); }
          checkByteStringIsUtf8(value);
          readerName_ = value;
          bitField0_ |= 0x00000100;
          onChanged();
          return this;
        }

        private int connectionNodeId_ ;
        /**
         * 
         * Host where read session connected.
         * 
         *
         * int32 connection_node_id = 12;
         * @return The connectionNodeId.
         */
        @java.lang.Override
        public int getConnectionNodeId() {
          return connectionNodeId_;
        }
        /**
         * 
         * Host where read session connected.
         * 
         *
         * int32 connection_node_id = 12;
         * @param value The connectionNodeId to set.
         * @return This builder for chaining.
         */
        public Builder setConnectionNodeId(int value) {

          connectionNodeId_ = value;
          bitField0_ |= 0x00000200;
          onChanged();
          return this;
        }
        /**
         * 
         * Host where read session connected.
         * 
         *
         * int32 connection_node_id = 12;
         * @return This builder for chaining.
         */
        public Builder clearConnectionNodeId() {
          bitField0_ = (bitField0_ & ~0x00000200);
          connectionNodeId_ = 0;
          onChanged();
          return this;
        }
        @java.lang.Override
        public final Builder setUnknownFields(
            final com.google.protobuf.UnknownFieldSet unknownFields) {
          return super.setUnknownFields(unknownFields);
        }

        @java.lang.Override
        public final Builder mergeUnknownFields(
            final com.google.protobuf.UnknownFieldSet unknownFields) {
          return super.mergeUnknownFields(unknownFields);
        }


        // @@protoc_insertion_point(builder_scope:Ydb.Topic.DescribeConsumerResult.PartitionConsumerStats)
      }

      // @@protoc_insertion_point(class_scope:Ydb.Topic.DescribeConsumerResult.PartitionConsumerStats)
      private static final tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionConsumerStats DEFAULT_INSTANCE;
      static {
        DEFAULT_INSTANCE = new tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionConsumerStats();
      }

      public static tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionConsumerStats getDefaultInstance() {
        return DEFAULT_INSTANCE;
      }

      private static final com.google.protobuf.Parser
          PARSER = new com.google.protobuf.AbstractParser() {
        @java.lang.Override
        public PartitionConsumerStats parsePartialFrom(
            com.google.protobuf.CodedInputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws com.google.protobuf.InvalidProtocolBufferException {
          Builder builder = newBuilder();
          try {
            builder.mergeFrom(input, extensionRegistry);
          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
            throw e.setUnfinishedMessage(builder.buildPartial());
          } catch (com.google.protobuf.UninitializedMessageException e) {
            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
          } catch (java.io.IOException e) {
            throw new com.google.protobuf.InvalidProtocolBufferException(e)
                .setUnfinishedMessage(builder.buildPartial());
          }
          return builder.buildPartial();
        }
      };

      public static com.google.protobuf.Parser parser() {
        return PARSER;
      }

      @java.lang.Override
      public com.google.protobuf.Parser getParserForType() {
        return PARSER;
      }

      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionConsumerStats getDefaultInstanceForType() {
        return DEFAULT_INSTANCE;
      }

    }

    private int bitField0_;
    public static final int SELF_FIELD_NUMBER = 1;
    private tech.ydb.proto.scheme.SchemeOperationProtos.Entry self_;
    /**
     * 
     * Description of scheme object.
     * 
     *
     * .Ydb.Scheme.Entry self = 1;
     * @return Whether the self field is set.
     */
    @java.lang.Override
    public boolean hasSelf() {
      return ((bitField0_ & 0x00000001) != 0);
    }
    /**
     * 
     * Description of scheme object.
     * 
     *
     * .Ydb.Scheme.Entry self = 1;
     * @return The self.
     */
    @java.lang.Override
    public tech.ydb.proto.scheme.SchemeOperationProtos.Entry getSelf() {
      return self_ == null ? tech.ydb.proto.scheme.SchemeOperationProtos.Entry.getDefaultInstance() : self_;
    }
    /**
     * 
     * Description of scheme object.
     * 
     *
     * .Ydb.Scheme.Entry self = 1;
     */
    @java.lang.Override
    public tech.ydb.proto.scheme.SchemeOperationProtos.EntryOrBuilder getSelfOrBuilder() {
      return self_ == null ? tech.ydb.proto.scheme.SchemeOperationProtos.Entry.getDefaultInstance() : self_;
    }

    public static final int CONSUMER_FIELD_NUMBER = 2;
    private tech.ydb.proto.topic.YdbTopic.Consumer consumer_;
    /**
     * .Ydb.Topic.Consumer consumer = 2;
     * @return Whether the consumer field is set.
     */
    @java.lang.Override
    public boolean hasConsumer() {
      return ((bitField0_ & 0x00000002) != 0);
    }
    /**
     * .Ydb.Topic.Consumer consumer = 2;
     * @return The consumer.
     */
    @java.lang.Override
    public tech.ydb.proto.topic.YdbTopic.Consumer getConsumer() {
      return consumer_ == null ? tech.ydb.proto.topic.YdbTopic.Consumer.getDefaultInstance() : consumer_;
    }
    /**
     * .Ydb.Topic.Consumer consumer = 2;
     */
    @java.lang.Override
    public tech.ydb.proto.topic.YdbTopic.ConsumerOrBuilder getConsumerOrBuilder() {
      return consumer_ == null ? tech.ydb.proto.topic.YdbTopic.Consumer.getDefaultInstance() : consumer_;
    }

    public static final int PARTITIONS_FIELD_NUMBER = 3;
    @SuppressWarnings("serial")
    private java.util.List partitions_;
    /**
     * repeated .Ydb.Topic.DescribeConsumerResult.PartitionInfo partitions = 3;
     */
    @java.lang.Override
    public java.util.List getPartitionsList() {
      return partitions_;
    }
    /**
     * repeated .Ydb.Topic.DescribeConsumerResult.PartitionInfo partitions = 3;
     */
    @java.lang.Override
    public java.util.List 
        getPartitionsOrBuilderList() {
      return partitions_;
    }
    /**
     * repeated .Ydb.Topic.DescribeConsumerResult.PartitionInfo partitions = 3;
     */
    @java.lang.Override
    public int getPartitionsCount() {
      return partitions_.size();
    }
    /**
     * repeated .Ydb.Topic.DescribeConsumerResult.PartitionInfo partitions = 3;
     */
    @java.lang.Override
    public tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionInfo getPartitions(int index) {
      return partitions_.get(index);
    }
    /**
     * repeated .Ydb.Topic.DescribeConsumerResult.PartitionInfo partitions = 3;
     */
    @java.lang.Override
    public tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionInfoOrBuilder getPartitionsOrBuilder(
        int index) {
      return partitions_.get(index);
    }

    private byte memoizedIsInitialized = -1;
    @java.lang.Override
    public final boolean isInitialized() {
      byte isInitialized = memoizedIsInitialized;
      if (isInitialized == 1) return true;
      if (isInitialized == 0) return false;

      memoizedIsInitialized = 1;
      return true;
    }

    @java.lang.Override
    public void writeTo(com.google.protobuf.CodedOutputStream output)
                        throws java.io.IOException {
      if (((bitField0_ & 0x00000001) != 0)) {
        output.writeMessage(1, getSelf());
      }
      if (((bitField0_ & 0x00000002) != 0)) {
        output.writeMessage(2, getConsumer());
      }
      for (int i = 0; i < partitions_.size(); i++) {
        output.writeMessage(3, partitions_.get(i));
      }
      getUnknownFields().writeTo(output);
    }

    @java.lang.Override
    public int getSerializedSize() {
      int size = memoizedSize;
      if (size != -1) return size;

      size = 0;
      if (((bitField0_ & 0x00000001) != 0)) {
        size += com.google.protobuf.CodedOutputStream
          .computeMessageSize(1, getSelf());
      }
      if (((bitField0_ & 0x00000002) != 0)) {
        size += com.google.protobuf.CodedOutputStream
          .computeMessageSize(2, getConsumer());
      }
      for (int i = 0; i < partitions_.size(); i++) {
        size += com.google.protobuf.CodedOutputStream
          .computeMessageSize(3, partitions_.get(i));
      }
      size += getUnknownFields().getSerializedSize();
      memoizedSize = size;
      return size;
    }

    @java.lang.Override
    public boolean equals(final java.lang.Object obj) {
      if (obj == this) {
       return true;
      }
      if (!(obj instanceof tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult)) {
        return super.equals(obj);
      }
      tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult other = (tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult) obj;

      if (hasSelf() != other.hasSelf()) return false;
      if (hasSelf()) {
        if (!getSelf()
            .equals(other.getSelf())) return false;
      }
      if (hasConsumer() != other.hasConsumer()) return false;
      if (hasConsumer()) {
        if (!getConsumer()
            .equals(other.getConsumer())) return false;
      }
      if (!getPartitionsList()
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        if (selfBuilder_ != null) {
          selfBuilder_.dispose();
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       * 
       * Description of scheme object.
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       * .Ydb.Scheme.Entry self = 1;
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       * 
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        } else {
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          ensurePartitionsIsMutable();
          partitions_.add(value);
          onChanged();
        } else {
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        return this;
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      /**
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      public Builder addPartitions(
          int index, tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionInfo value) {
        if (partitionsBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          ensurePartitionsIsMutable();
          partitions_.add(index, value);
          onChanged();
        } else {
          partitionsBuilder_.addMessage(index, value);
        }
        return this;
      }
      /**
       * repeated .Ydb.Topic.DescribeConsumerResult.PartitionInfo partitions = 3;
       */
      public Builder addPartitions(
          tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionInfo.Builder builderForValue) {
        if (partitionsBuilder_ == null) {
          ensurePartitionsIsMutable();
          partitions_.add(builderForValue.build());
          onChanged();
        } else {
          partitionsBuilder_.addMessage(builderForValue.build());
        }
        return this;
      }
      /**
       * repeated .Ydb.Topic.DescribeConsumerResult.PartitionInfo partitions = 3;
       */
      public Builder addPartitions(
          int index, tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionInfo.Builder builderForValue) {
        if (partitionsBuilder_ == null) {
          ensurePartitionsIsMutable();
          partitions_.add(index, builderForValue.build());
          onChanged();
        } else {
          partitionsBuilder_.addMessage(index, builderForValue.build());
        }
        return this;
      }
      /**
       * repeated .Ydb.Topic.DescribeConsumerResult.PartitionInfo partitions = 3;
       */
      public Builder addAllPartitions(
          java.lang.Iterable values) {
        if (partitionsBuilder_ == null) {
          ensurePartitionsIsMutable();
          com.google.protobuf.AbstractMessageLite.Builder.addAll(
              values, partitions_);
          onChanged();
        } else {
          partitionsBuilder_.addAllMessages(values);
        }
        return this;
      }
      /**
       * repeated .Ydb.Topic.DescribeConsumerResult.PartitionInfo partitions = 3;
       */
      public Builder clearPartitions() {
        if (partitionsBuilder_ == null) {
          partitions_ = java.util.Collections.emptyList();
          bitField0_ = (bitField0_ & ~0x00000004);
          onChanged();
        } else {
          partitionsBuilder_.clear();
        }
        return this;
      }
      /**
       * repeated .Ydb.Topic.DescribeConsumerResult.PartitionInfo partitions = 3;
       */
      public Builder removePartitions(int index) {
        if (partitionsBuilder_ == null) {
          ensurePartitionsIsMutable();
          partitions_.remove(index);
          onChanged();
        } else {
          partitionsBuilder_.remove(index);
        }
        return this;
      }
      /**
       * repeated .Ydb.Topic.DescribeConsumerResult.PartitionInfo partitions = 3;
       */
      public tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionInfo.Builder getPartitionsBuilder(
          int index) {
        return getPartitionsFieldBuilder().getBuilder(index);
      }
      /**
       * repeated .Ydb.Topic.DescribeConsumerResult.PartitionInfo partitions = 3;
       */
      public tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionInfoOrBuilder getPartitionsOrBuilder(
          int index) {
        if (partitionsBuilder_ == null) {
          return partitions_.get(index);  } else {
          return partitionsBuilder_.getMessageOrBuilder(index);
        }
      }
      /**
       * repeated .Ydb.Topic.DescribeConsumerResult.PartitionInfo partitions = 3;
       */
      public java.util.List 
           getPartitionsOrBuilderList() {
        if (partitionsBuilder_ != null) {
          return partitionsBuilder_.getMessageOrBuilderList();
        } else {
          return java.util.Collections.unmodifiableList(partitions_);
        }
      }
      /**
       * repeated .Ydb.Topic.DescribeConsumerResult.PartitionInfo partitions = 3;
       */
      public tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionInfo.Builder addPartitionsBuilder() {
        return getPartitionsFieldBuilder().addBuilder(
            tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionInfo.getDefaultInstance());
      }
      /**
       * repeated .Ydb.Topic.DescribeConsumerResult.PartitionInfo partitions = 3;
       */
      public tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionInfo.Builder addPartitionsBuilder(
          int index) {
        return getPartitionsFieldBuilder().addBuilder(
            index, tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionInfo.getDefaultInstance());
      }
      /**
       * repeated .Ydb.Topic.DescribeConsumerResult.PartitionInfo partitions = 3;
       */
      public java.util.List 
           getPartitionsBuilderList() {
        return getPartitionsFieldBuilder().getBuilderList();
      }
      private com.google.protobuf.RepeatedFieldBuilderV3<
          tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionInfo, tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionInfo.Builder, tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionInfoOrBuilder> 
          getPartitionsFieldBuilder() {
        if (partitionsBuilder_ == null) {
          partitionsBuilder_ = new com.google.protobuf.RepeatedFieldBuilderV3<
              tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionInfo, tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionInfo.Builder, tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult.PartitionInfoOrBuilder>(
                  partitions_,
                  ((bitField0_ & 0x00000004) != 0),
                  getParentForChildren(),
                  isClean());
          partitions_ = null;
        }
        return partitionsBuilder_;
      }
      @java.lang.Override
      public final Builder setUnknownFields(
          final com.google.protobuf.UnknownFieldSet unknownFields) {
        return super.setUnknownFields(unknownFields);
      }

      @java.lang.Override
      public final Builder mergeUnknownFields(
          final com.google.protobuf.UnknownFieldSet unknownFields) {
        return super.mergeUnknownFields(unknownFields);
      }


      // @@protoc_insertion_point(builder_scope:Ydb.Topic.DescribeConsumerResult)
    }

    // @@protoc_insertion_point(class_scope:Ydb.Topic.DescribeConsumerResult)
    private static final tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult DEFAULT_INSTANCE;
    static {
      DEFAULT_INSTANCE = new tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult();
    }

    public static tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult getDefaultInstance() {
      return DEFAULT_INSTANCE;
    }

    private static final com.google.protobuf.Parser
        PARSER = new com.google.protobuf.AbstractParser() {
      @java.lang.Override
      public DescribeConsumerResult parsePartialFrom(
          com.google.protobuf.CodedInputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        Builder builder = newBuilder();
        try {
          builder.mergeFrom(input, extensionRegistry);
        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
          throw e.setUnfinishedMessage(builder.buildPartial());
        } catch (com.google.protobuf.UninitializedMessageException e) {
          throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
        } catch (java.io.IOException e) {
          throw new com.google.protobuf.InvalidProtocolBufferException(e)
              .setUnfinishedMessage(builder.buildPartial());
        }
        return builder.buildPartial();
      }
    };

    public static com.google.protobuf.Parser parser() {
      return PARSER;
    }

    @java.lang.Override
    public com.google.protobuf.Parser getParserForType() {
      return PARSER;
    }

    @java.lang.Override
    public tech.ydb.proto.topic.YdbTopic.DescribeConsumerResult getDefaultInstanceForType() {
      return DEFAULT_INSTANCE;
    }

  }

  public interface PartitionStatsOrBuilder extends
      // @@protoc_insertion_point(interface_extends:Ydb.Topic.PartitionStats)
      com.google.protobuf.MessageOrBuilder {

    /**
     * 
     * Partition contains messages with offsets in range [start, end).
     * 
     *
     * .Ydb.Topic.OffsetsRange partition_offsets = 1;
     * @return Whether the partitionOffsets field is set.
     */
    boolean hasPartitionOffsets();
    /**
     * 
     * Partition contains messages with offsets in range [start, end).
     * 
     *
     * .Ydb.Topic.OffsetsRange partition_offsets = 1;
     * @return The partitionOffsets.
     */
    tech.ydb.proto.topic.YdbTopic.OffsetsRange getPartitionOffsets();
    /**
     * 
     * Partition contains messages with offsets in range [start, end).
     * 
     *
     * .Ydb.Topic.OffsetsRange partition_offsets = 1;
     */
    tech.ydb.proto.topic.YdbTopic.OffsetsRangeOrBuilder getPartitionOffsetsOrBuilder();

    /**
     * 
     * Approximate size of partition.
     * 
     *
     * int64 store_size_bytes = 2;
     * @return The storeSizeBytes.
     */
    long getStoreSizeBytes();

    /**
     * 
     * Timestamp of last write.
     * 
     *
     * .google.protobuf.Timestamp last_write_time = 3;
     * @return Whether the lastWriteTime field is set.
     */
    boolean hasLastWriteTime();
    /**
     * 
     * Timestamp of last write.
     * 
     *
     * .google.protobuf.Timestamp last_write_time = 3;
     * @return The lastWriteTime.
     */
    com.google.protobuf.Timestamp getLastWriteTime();
    /**
     * 
     * Timestamp of last write.
     * 
     *
     * .google.protobuf.Timestamp last_write_time = 3;
     */
    com.google.protobuf.TimestampOrBuilder getLastWriteTimeOrBuilder();

    /**
     * 
     * Maximum of differences between write timestamp and create timestamp for all messages, written during last minute.
     * 
     *
     * .google.protobuf.Duration max_write_time_lag = 4;
     * @return Whether the maxWriteTimeLag field is set.
     */
    boolean hasMaxWriteTimeLag();
    /**
     * 
     * Maximum of differences between write timestamp and create timestamp for all messages, written during last minute.
     * 
     *
     * .google.protobuf.Duration max_write_time_lag = 4;
     * @return The maxWriteTimeLag.
     */
    com.google.protobuf.Duration getMaxWriteTimeLag();
    /**
     * 
     * Maximum of differences between write timestamp and create timestamp for all messages, written during last minute.
     * 
     *
     * .google.protobuf.Duration max_write_time_lag = 4;
     */
    com.google.protobuf.DurationOrBuilder getMaxWriteTimeLagOrBuilder();

    /**
     * 
     * How much bytes were written during several windows in this partition.
     * 
     *
     * .Ydb.Topic.MultipleWindowsStat bytes_written = 5;
     * @return Whether the bytesWritten field is set.
     */
    boolean hasBytesWritten();
    /**
     * 
     * How much bytes were written during several windows in this partition.
     * 
     *
     * .Ydb.Topic.MultipleWindowsStat bytes_written = 5;
     * @return The bytesWritten.
     */
    tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat getBytesWritten();
    /**
     * 
     * How much bytes were written during several windows in this partition.
     * 
     *
     * .Ydb.Topic.MultipleWindowsStat bytes_written = 5;
     */
    tech.ydb.proto.topic.YdbTopic.MultipleWindowsStatOrBuilder getBytesWrittenOrBuilder();

    /**
     * 
     * Partition host. Useful for debugging purposes.
     * 
     *
     * int32 partition_node_id = 8 [deprecated = true];
     * @deprecated Ydb.Topic.PartitionStats.partition_node_id is deprecated.
     *     See protos/ydb_topic.proto;l=1121
     * @return The partitionNodeId.
     */
    @java.lang.Deprecated int getPartitionNodeId();
  }
  /**
   * Protobuf type {@code Ydb.Topic.PartitionStats}
   */
  public static final class PartitionStats extends
      com.google.protobuf.GeneratedMessageV3 implements
      // @@protoc_insertion_point(message_implements:Ydb.Topic.PartitionStats)
      PartitionStatsOrBuilder {
  private static final long serialVersionUID = 0L;
    // Use PartitionStats.newBuilder() to construct.
    private PartitionStats(com.google.protobuf.GeneratedMessageV3.Builder builder) {
      super(builder);
    }
    private PartitionStats() {
    }

    @java.lang.Override
    @SuppressWarnings({"unused"})
    protected java.lang.Object newInstance(
        UnusedPrivateParameter unused) {
      return new PartitionStats();
    }

    public static final com.google.protobuf.Descriptors.Descriptor
        getDescriptor() {
      return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_PartitionStats_descriptor;
    }

    @java.lang.Override
    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
        internalGetFieldAccessorTable() {
      return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_PartitionStats_fieldAccessorTable
          .ensureFieldAccessorsInitialized(
              tech.ydb.proto.topic.YdbTopic.PartitionStats.class, tech.ydb.proto.topic.YdbTopic.PartitionStats.Builder.class);
    }

    private int bitField0_;
    public static final int PARTITION_OFFSETS_FIELD_NUMBER = 1;
    private tech.ydb.proto.topic.YdbTopic.OffsetsRange partitionOffsets_;
    /**
     * 
     * Partition contains messages with offsets in range [start, end).
     * 
     *
     * .Ydb.Topic.OffsetsRange partition_offsets = 1;
     * @return Whether the partitionOffsets field is set.
     */
    @java.lang.Override
    public boolean hasPartitionOffsets() {
      return ((bitField0_ & 0x00000001) != 0);
    }
    /**
     * 
     * Partition contains messages with offsets in range [start, end).
     * 
     *
     * .Ydb.Topic.OffsetsRange partition_offsets = 1;
     * @return The partitionOffsets.
     */
    @java.lang.Override
    public tech.ydb.proto.topic.YdbTopic.OffsetsRange getPartitionOffsets() {
      return partitionOffsets_ == null ? tech.ydb.proto.topic.YdbTopic.OffsetsRange.getDefaultInstance() : partitionOffsets_;
    }
    /**
     * 
     * Partition contains messages with offsets in range [start, end).
     * 
     *
     * .Ydb.Topic.OffsetsRange partition_offsets = 1;
     */
    @java.lang.Override
    public tech.ydb.proto.topic.YdbTopic.OffsetsRangeOrBuilder getPartitionOffsetsOrBuilder() {
      return partitionOffsets_ == null ? tech.ydb.proto.topic.YdbTopic.OffsetsRange.getDefaultInstance() : partitionOffsets_;
    }

    public static final int STORE_SIZE_BYTES_FIELD_NUMBER = 2;
    private long storeSizeBytes_ = 0L;
    /**
     * 
     * Approximate size of partition.
     * 
     *
     * int64 store_size_bytes = 2;
     * @return The storeSizeBytes.
     */
    @java.lang.Override
    public long getStoreSizeBytes() {
      return storeSizeBytes_;
    }

    public static final int LAST_WRITE_TIME_FIELD_NUMBER = 3;
    private com.google.protobuf.Timestamp lastWriteTime_;
    /**
     * 
     * Timestamp of last write.
     * 
     *
     * .google.protobuf.Timestamp last_write_time = 3;
     * @return Whether the lastWriteTime field is set.
     */
    @java.lang.Override
    public boolean hasLastWriteTime() {
      return ((bitField0_ & 0x00000002) != 0);
    }
    /**
     * 
     * Timestamp of last write.
     * 
     *
     * .google.protobuf.Timestamp last_write_time = 3;
     * @return The lastWriteTime.
     */
    @java.lang.Override
    public com.google.protobuf.Timestamp getLastWriteTime() {
      return lastWriteTime_ == null ? com.google.protobuf.Timestamp.getDefaultInstance() : lastWriteTime_;
    }
    /**
     * 
     * Timestamp of last write.
     * 
     *
     * .google.protobuf.Timestamp last_write_time = 3;
     */
    @java.lang.Override
    public com.google.protobuf.TimestampOrBuilder getLastWriteTimeOrBuilder() {
      return lastWriteTime_ == null ? com.google.protobuf.Timestamp.getDefaultInstance() : lastWriteTime_;
    }

    public static final int MAX_WRITE_TIME_LAG_FIELD_NUMBER = 4;
    private com.google.protobuf.Duration maxWriteTimeLag_;
    /**
     * 
     * Maximum of differences between write timestamp and create timestamp for all messages, written during last minute.
     * 
     *
     * .google.protobuf.Duration max_write_time_lag = 4;
     * @return Whether the maxWriteTimeLag field is set.
     */
    @java.lang.Override
    public boolean hasMaxWriteTimeLag() {
      return ((bitField0_ & 0x00000004) != 0);
    }
    /**
     * 
     * Maximum of differences between write timestamp and create timestamp for all messages, written during last minute.
     * 
     *
     * .google.protobuf.Duration max_write_time_lag = 4;
     * @return The maxWriteTimeLag.
     */
    @java.lang.Override
    public com.google.protobuf.Duration getMaxWriteTimeLag() {
      return maxWriteTimeLag_ == null ? com.google.protobuf.Duration.getDefaultInstance() : maxWriteTimeLag_;
    }
    /**
     * 
     * Maximum of differences between write timestamp and create timestamp for all messages, written during last minute.
     * 
     *
     * .google.protobuf.Duration max_write_time_lag = 4;
     */
    @java.lang.Override
    public com.google.protobuf.DurationOrBuilder getMaxWriteTimeLagOrBuilder() {
      return maxWriteTimeLag_ == null ? com.google.protobuf.Duration.getDefaultInstance() : maxWriteTimeLag_;
    }

    public static final int BYTES_WRITTEN_FIELD_NUMBER = 5;
    private tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat bytesWritten_;
    /**
     * 
     * How much bytes were written during several windows in this partition.
     * 
     *
     * .Ydb.Topic.MultipleWindowsStat bytes_written = 5;
     * @return Whether the bytesWritten field is set.
     */
    @java.lang.Override
    public boolean hasBytesWritten() {
      return ((bitField0_ & 0x00000008) != 0);
    }
    /**
     * 
     * How much bytes were written during several windows in this partition.
     * 
     *
     * .Ydb.Topic.MultipleWindowsStat bytes_written = 5;
     * @return The bytesWritten.
     */
    @java.lang.Override
    public tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat getBytesWritten() {
      return bytesWritten_ == null ? tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat.getDefaultInstance() : bytesWritten_;
    }
    /**
     * 
     * How much bytes were written during several windows in this partition.
     * 
     *
     * .Ydb.Topic.MultipleWindowsStat bytes_written = 5;
     */
    @java.lang.Override
    public tech.ydb.proto.topic.YdbTopic.MultipleWindowsStatOrBuilder getBytesWrittenOrBuilder() {
      return bytesWritten_ == null ? tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat.getDefaultInstance() : bytesWritten_;
    }

    public static final int PARTITION_NODE_ID_FIELD_NUMBER = 8;
    private int partitionNodeId_ = 0;
    /**
     * 
     * Partition host. Useful for debugging purposes.
     * 
     *
     * int32 partition_node_id = 8 [deprecated = true];
     * @deprecated Ydb.Topic.PartitionStats.partition_node_id is deprecated.
     *     See protos/ydb_topic.proto;l=1121
     * @return The partitionNodeId.
     */
    @java.lang.Override
    @java.lang.Deprecated public int getPartitionNodeId() {
      return partitionNodeId_;
    }

    private byte memoizedIsInitialized = -1;
    @java.lang.Override
    public final boolean isInitialized() {
      byte isInitialized = memoizedIsInitialized;
      if (isInitialized == 1) return true;
      if (isInitialized == 0) return false;

      memoizedIsInitialized = 1;
      return true;
    }

    @java.lang.Override
    public void writeTo(com.google.protobuf.CodedOutputStream output)
                        throws java.io.IOException {
      if (((bitField0_ & 0x00000001) != 0)) {
        output.writeMessage(1, getPartitionOffsets());
      }
      if (storeSizeBytes_ != 0L) {
        output.writeInt64(2, storeSizeBytes_);
      }
      if (((bitField0_ & 0x00000002) != 0)) {
        output.writeMessage(3, getLastWriteTime());
      }
      if (((bitField0_ & 0x00000004) != 0)) {
        output.writeMessage(4, getMaxWriteTimeLag());
      }
      if (((bitField0_ & 0x00000008) != 0)) {
        output.writeMessage(5, getBytesWritten());
      }
      if (partitionNodeId_ != 0) {
        output.writeInt32(8, partitionNodeId_);
      }
      getUnknownFields().writeTo(output);
    }

    @java.lang.Override
    public int getSerializedSize() {
      int size = memoizedSize;
      if (size != -1) return size;

      size = 0;
      if (((bitField0_ & 0x00000001) != 0)) {
        size += com.google.protobuf.CodedOutputStream
          .computeMessageSize(1, getPartitionOffsets());
      }
      if (storeSizeBytes_ != 0L) {
        size += com.google.protobuf.CodedOutputStream
          .computeInt64Size(2, storeSizeBytes_);
      }
      if (((bitField0_ & 0x00000002) != 0)) {
        size += com.google.protobuf.CodedOutputStream
          .computeMessageSize(3, getLastWriteTime());
      }
      if (((bitField0_ & 0x00000004) != 0)) {
        size += com.google.protobuf.CodedOutputStream
          .computeMessageSize(4, getMaxWriteTimeLag());
      }
      if (((bitField0_ & 0x00000008) != 0)) {
        size += com.google.protobuf.CodedOutputStream
          .computeMessageSize(5, getBytesWritten());
      }
      if (partitionNodeId_ != 0) {
        size += com.google.protobuf.CodedOutputStream
          .computeInt32Size(8, partitionNodeId_);
      }
      size += getUnknownFields().getSerializedSize();
      memoizedSize = size;
      return size;
    }

    @java.lang.Override
    public boolean equals(final java.lang.Object obj) {
      if (obj == this) {
       return true;
      }
      if (!(obj instanceof tech.ydb.proto.topic.YdbTopic.PartitionStats)) {
        return super.equals(obj);
      }
      tech.ydb.proto.topic.YdbTopic.PartitionStats other = (tech.ydb.proto.topic.YdbTopic.PartitionStats) obj;

      if (hasPartitionOffsets() != other.hasPartitionOffsets()) return false;
      if (hasPartitionOffsets()) {
        if (!getPartitionOffsets()
            .equals(other.getPartitionOffsets())) return false;
      }
      if (getStoreSizeBytes()
          != other.getStoreSizeBytes()) return false;
      if (hasLastWriteTime() != other.hasLastWriteTime()) return false;
      if (hasLastWriteTime()) {
        if (!getLastWriteTime()
            .equals(other.getLastWriteTime())) return false;
      }
      if (hasMaxWriteTimeLag() != other.hasMaxWriteTimeLag()) return false;
      if (hasMaxWriteTimeLag()) {
        if (!getMaxWriteTimeLag()
            .equals(other.getMaxWriteTimeLag())) return false;
      }
      if (hasBytesWritten() != other.hasBytesWritten()) return false;
      if (hasBytesWritten()) {
        if (!getBytesWritten()
            .equals(other.getBytesWritten())) return false;
      }
      if (getPartitionNodeId()
          != other.getPartitionNodeId()) return false;
      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
      return true;
    }

    @java.lang.Override
    public int hashCode() {
      if (memoizedHashCode != 0) {
        return memoizedHashCode;
      }
      int hash = 41;
      hash = (19 * hash) + getDescriptor().hashCode();
      if (hasPartitionOffsets()) {
        hash = (37 * hash) + PARTITION_OFFSETS_FIELD_NUMBER;
        hash = (53 * hash) + getPartitionOffsets().hashCode();
      }
      hash = (37 * hash) + STORE_SIZE_BYTES_FIELD_NUMBER;
      hash = (53 * hash) + com.google.protobuf.Internal.hashLong(
          getStoreSizeBytes());
      if (hasLastWriteTime()) {
        hash = (37 * hash) + LAST_WRITE_TIME_FIELD_NUMBER;
        hash = (53 * hash) + getLastWriteTime().hashCode();
      }
      if (hasMaxWriteTimeLag()) {
        hash = (37 * hash) + MAX_WRITE_TIME_LAG_FIELD_NUMBER;
        hash = (53 * hash) + getMaxWriteTimeLag().hashCode();
      }
      if (hasBytesWritten()) {
        hash = (37 * hash) + BYTES_WRITTEN_FIELD_NUMBER;
        hash = (53 * hash) + getBytesWritten().hashCode();
      }
      hash = (37 * hash) + PARTITION_NODE_ID_FIELD_NUMBER;
      hash = (53 * hash) + getPartitionNodeId();
      hash = (29 * hash) + getUnknownFields().hashCode();
      memoizedHashCode = hash;
      return hash;
    }

    public static tech.ydb.proto.topic.YdbTopic.PartitionStats parseFrom(
        java.nio.ByteBuffer data)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data);
    }
    public static tech.ydb.proto.topic.YdbTopic.PartitionStats parseFrom(
        java.nio.ByteBuffer data,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data, extensionRegistry);
    }
    public static tech.ydb.proto.topic.YdbTopic.PartitionStats parseFrom(
        com.google.protobuf.ByteString data)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data);
    }
    public static tech.ydb.proto.topic.YdbTopic.PartitionStats parseFrom(
        com.google.protobuf.ByteString data,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data, extensionRegistry);
    }
    public static tech.ydb.proto.topic.YdbTopic.PartitionStats parseFrom(byte[] data)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data);
    }
    public static tech.ydb.proto.topic.YdbTopic.PartitionStats parseFrom(
        byte[] data,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data, extensionRegistry);
    }
    public static tech.ydb.proto.topic.YdbTopic.PartitionStats parseFrom(java.io.InputStream input)
        throws java.io.IOException {
      return com.google.protobuf.GeneratedMessageV3
          .parseWithIOException(PARSER, input);
    }
    public static tech.ydb.proto.topic.YdbTopic.PartitionStats parseFrom(
        java.io.InputStream input,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws java.io.IOException {
      return com.google.protobuf.GeneratedMessageV3
          .parseWithIOException(PARSER, input, extensionRegistry);
    }

    public static tech.ydb.proto.topic.YdbTopic.PartitionStats parseDelimitedFrom(java.io.InputStream input)
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    /**
     * Protobuf type {@code Ydb.Topic.PartitionStats}
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        com.google.protobuf.GeneratedMessageV3.Builder implements
        // @@protoc_insertion_point(builder_implements:Ydb.Topic.PartitionStats)
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      public Builder mergeFrom(com.google.protobuf.Message other) {
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        } else {
          super.mergeFrom(other);
          return this;
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      }

      public Builder mergeFrom(tech.ydb.proto.topic.YdbTopic.PartitionStats other) {
        if (other == tech.ydb.proto.topic.YdbTopic.PartitionStats.getDefaultInstance()) return this;
        if (other.hasPartitionOffsets()) {
          mergePartitionOffsets(other.getPartitionOffsets());
        }
        if (other.getStoreSizeBytes() != 0L) {
          setStoreSizeBytes(other.getStoreSizeBytes());
        }
        if (other.hasLastWriteTime()) {
          mergeLastWriteTime(other.getLastWriteTime());
        }
        if (other.hasMaxWriteTimeLag()) {
          mergeMaxWriteTimeLag(other.getMaxWriteTimeLag());
        }
        if (other.hasBytesWritten()) {
          mergeBytesWritten(other.getBytesWritten());
        }
        if (other.getPartitionNodeId() != 0) {
          setPartitionNodeId(other.getPartitionNodeId());
        }
        this.mergeUnknownFields(other.getUnknownFields());
        onChanged();
        return this;
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      @java.lang.Override
      public Builder mergeFrom(
          com.google.protobuf.CodedInputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws java.io.IOException {
        if (extensionRegistry == null) {
          throw new java.lang.NullPointerException();
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        try {
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          while (!done) {
            int tag = input.readTag();
            switch (tag) {
              case 0:
                done = true;
                break;
              case 10: {
                input.readMessage(
                    getPartitionOffsetsFieldBuilder().getBuilder(),
                    extensionRegistry);
                bitField0_ |= 0x00000001;
                break;
              } // case 10
              case 16: {
                storeSizeBytes_ = input.readInt64();
                bitField0_ |= 0x00000002;
                break;
              } // case 16
              case 26: {
                input.readMessage(
                    getLastWriteTimeFieldBuilder().getBuilder(),
                    extensionRegistry);
                bitField0_ |= 0x00000004;
                break;
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              case 34: {
                input.readMessage(
                    getMaxWriteTimeLagFieldBuilder().getBuilder(),
                    extensionRegistry);
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              case 42: {
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                  done = true; // was an endgroup tag
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            } // switch (tag)
          } // while (!done)
        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
          throw e.unwrapIOException();
        } finally {
          onChanged();
        } // finally
        return this;
      }
      private int bitField0_;

      private tech.ydb.proto.topic.YdbTopic.OffsetsRange partitionOffsets_;
      private com.google.protobuf.SingleFieldBuilderV3<
          tech.ydb.proto.topic.YdbTopic.OffsetsRange, tech.ydb.proto.topic.YdbTopic.OffsetsRange.Builder, tech.ydb.proto.topic.YdbTopic.OffsetsRangeOrBuilder> partitionOffsetsBuilder_;
      /**
       * 
       * Partition contains messages with offsets in range [start, end).
       * 
       *
       * .Ydb.Topic.OffsetsRange partition_offsets = 1;
       * @return Whether the partitionOffsets field is set.
       */
      public boolean hasPartitionOffsets() {
        return ((bitField0_ & 0x00000001) != 0);
      }
      /**
       * 
       * Partition contains messages with offsets in range [start, end).
       * 
       *
       * .Ydb.Topic.OffsetsRange partition_offsets = 1;
       * @return The partitionOffsets.
       */
      public tech.ydb.proto.topic.YdbTopic.OffsetsRange getPartitionOffsets() {
        if (partitionOffsetsBuilder_ == null) {
          return partitionOffsets_ == null ? tech.ydb.proto.topic.YdbTopic.OffsetsRange.getDefaultInstance() : partitionOffsets_;
        } else {
          return partitionOffsetsBuilder_.getMessage();
        }
      }
      /**
       * 
       * Partition contains messages with offsets in range [start, end).
       * 
       *
       * .Ydb.Topic.OffsetsRange partition_offsets = 1;
       */
      public Builder setPartitionOffsets(tech.ydb.proto.topic.YdbTopic.OffsetsRange value) {
        if (partitionOffsetsBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          partitionOffsets_ = value;
        } else {
          partitionOffsetsBuilder_.setMessage(value);
        }
        bitField0_ |= 0x00000001;
        onChanged();
        return this;
      }
      /**
       * 
       * Partition contains messages with offsets in range [start, end).
       * 
       *
       * .Ydb.Topic.OffsetsRange partition_offsets = 1;
       */
      public Builder setPartitionOffsets(
          tech.ydb.proto.topic.YdbTopic.OffsetsRange.Builder builderForValue) {
        if (partitionOffsetsBuilder_ == null) {
          partitionOffsets_ = builderForValue.build();
        } else {
          partitionOffsetsBuilder_.setMessage(builderForValue.build());
        }
        bitField0_ |= 0x00000001;
        onChanged();
        return this;
      }
      /**
       * 
       * Partition contains messages with offsets in range [start, end).
       * 
       *
       * .Ydb.Topic.OffsetsRange partition_offsets = 1;
       */
      public Builder mergePartitionOffsets(tech.ydb.proto.topic.YdbTopic.OffsetsRange value) {
        if (partitionOffsetsBuilder_ == null) {
          if (((bitField0_ & 0x00000001) != 0) &&
            partitionOffsets_ != null &&
            partitionOffsets_ != tech.ydb.proto.topic.YdbTopic.OffsetsRange.getDefaultInstance()) {
            getPartitionOffsetsBuilder().mergeFrom(value);
          } else {
            partitionOffsets_ = value;
          }
        } else {
          partitionOffsetsBuilder_.mergeFrom(value);
        }
        if (partitionOffsets_ != null) {
          bitField0_ |= 0x00000001;
          onChanged();
        }
        return this;
      }
      /**
       * 
       * Partition contains messages with offsets in range [start, end).
       * 
       *
       * .Ydb.Topic.OffsetsRange partition_offsets = 1;
       */
      public Builder clearPartitionOffsets() {
        bitField0_ = (bitField0_ & ~0x00000001);
        partitionOffsets_ = null;
        if (partitionOffsetsBuilder_ != null) {
          partitionOffsetsBuilder_.dispose();
          partitionOffsetsBuilder_ = null;
        }
        onChanged();
        return this;
      }
      /**
       * 
       * Partition contains messages with offsets in range [start, end).
       * 
       *
       * .Ydb.Topic.OffsetsRange partition_offsets = 1;
       */
      public tech.ydb.proto.topic.YdbTopic.OffsetsRange.Builder getPartitionOffsetsBuilder() {
        bitField0_ |= 0x00000001;
        onChanged();
        return getPartitionOffsetsFieldBuilder().getBuilder();
      }
      /**
       * 
       * Partition contains messages with offsets in range [start, end).
       * 
       *
       * .Ydb.Topic.OffsetsRange partition_offsets = 1;
       */
      public tech.ydb.proto.topic.YdbTopic.OffsetsRangeOrBuilder getPartitionOffsetsOrBuilder() {
        if (partitionOffsetsBuilder_ != null) {
          return partitionOffsetsBuilder_.getMessageOrBuilder();
        } else {
          return partitionOffsets_ == null ?
              tech.ydb.proto.topic.YdbTopic.OffsetsRange.getDefaultInstance() : partitionOffsets_;
        }
      }
      /**
       * 
       * Partition contains messages with offsets in range [start, end).
       * 
       *
       * .Ydb.Topic.OffsetsRange partition_offsets = 1;
       */
      private com.google.protobuf.SingleFieldBuilderV3<
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          getPartitionOffsetsFieldBuilder() {
        if (partitionOffsetsBuilder_ == null) {
          partitionOffsetsBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
              tech.ydb.proto.topic.YdbTopic.OffsetsRange, tech.ydb.proto.topic.YdbTopic.OffsetsRange.Builder, tech.ydb.proto.topic.YdbTopic.OffsetsRangeOrBuilder>(
                  getPartitionOffsets(),
                  getParentForChildren(),
                  isClean());
          partitionOffsets_ = null;
        }
        return partitionOffsetsBuilder_;
      }

      private long storeSizeBytes_ ;
      /**
       * 
       * Approximate size of partition.
       * 
       *
       * int64 store_size_bytes = 2;
       * @return The storeSizeBytes.
       */
      @java.lang.Override
      public long getStoreSizeBytes() {
        return storeSizeBytes_;
      }
      /**
       * 
       * Approximate size of partition.
       * 
       *
       * int64 store_size_bytes = 2;
       * @param value The storeSizeBytes to set.
       * @return This builder for chaining.
       */
      public Builder setStoreSizeBytes(long value) {

        storeSizeBytes_ = value;
        bitField0_ |= 0x00000002;
        onChanged();
        return this;
      }
      /**
       * 
       * Approximate size of partition.
       * 
       *
       * int64 store_size_bytes = 2;
       * @return This builder for chaining.
       */
      public Builder clearStoreSizeBytes() {
        bitField0_ = (bitField0_ & ~0x00000002);
        storeSizeBytes_ = 0L;
        onChanged();
        return this;
      }

      private com.google.protobuf.Timestamp lastWriteTime_;
      private com.google.protobuf.SingleFieldBuilderV3<
          com.google.protobuf.Timestamp, com.google.protobuf.Timestamp.Builder, com.google.protobuf.TimestampOrBuilder> lastWriteTimeBuilder_;
      /**
       * 
       * Timestamp of last write.
       * 
       *
       * .google.protobuf.Timestamp last_write_time = 3;
       * @return Whether the lastWriteTime field is set.
       */
      public boolean hasLastWriteTime() {
        return ((bitField0_ & 0x00000004) != 0);
      }
      /**
       * 
       * Timestamp of last write.
       * 
       *
       * .google.protobuf.Timestamp last_write_time = 3;
       * @return The lastWriteTime.
       */
      public com.google.protobuf.Timestamp getLastWriteTime() {
        if (lastWriteTimeBuilder_ == null) {
          return lastWriteTime_ == null ? com.google.protobuf.Timestamp.getDefaultInstance() : lastWriteTime_;
        } else {
          return lastWriteTimeBuilder_.getMessage();
        }
      }
      /**
       * 
       * Timestamp of last write.
       * 
       *
       * .google.protobuf.Timestamp last_write_time = 3;
       */
      public Builder setLastWriteTime(com.google.protobuf.Timestamp value) {
        if (lastWriteTimeBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          lastWriteTime_ = value;
        } else {
          lastWriteTimeBuilder_.setMessage(value);
        }
        bitField0_ |= 0x00000004;
        onChanged();
        return this;
      }
      /**
       * 
       * Timestamp of last write.
       * 
       *
       * .google.protobuf.Timestamp last_write_time = 3;
       */
      public Builder setLastWriteTime(
          com.google.protobuf.Timestamp.Builder builderForValue) {
        if (lastWriteTimeBuilder_ == null) {
          lastWriteTime_ = builderForValue.build();
        } else {
          lastWriteTimeBuilder_.setMessage(builderForValue.build());
        }
        bitField0_ |= 0x00000004;
        onChanged();
        return this;
      }
      /**
       * 
       * Timestamp of last write.
       * 
       *
       * .google.protobuf.Timestamp last_write_time = 3;
       */
      public Builder mergeLastWriteTime(com.google.protobuf.Timestamp value) {
        if (lastWriteTimeBuilder_ == null) {
          if (((bitField0_ & 0x00000004) != 0) &&
            lastWriteTime_ != null &&
            lastWriteTime_ != com.google.protobuf.Timestamp.getDefaultInstance()) {
            getLastWriteTimeBuilder().mergeFrom(value);
          } else {
            lastWriteTime_ = value;
          }
        } else {
          lastWriteTimeBuilder_.mergeFrom(value);
        }
        if (lastWriteTime_ != null) {
          bitField0_ |= 0x00000004;
          onChanged();
        }
        return this;
      }
      /**
       * 
       * Timestamp of last write.
       * 
       *
       * .google.protobuf.Timestamp last_write_time = 3;
       */
      public Builder clearLastWriteTime() {
        bitField0_ = (bitField0_ & ~0x00000004);
        lastWriteTime_ = null;
        if (lastWriteTimeBuilder_ != null) {
          lastWriteTimeBuilder_.dispose();
          lastWriteTimeBuilder_ = null;
        }
        onChanged();
        return this;
      }
      /**
       * 
       * Timestamp of last write.
       * 
       *
       * .google.protobuf.Timestamp last_write_time = 3;
       */
      public com.google.protobuf.Timestamp.Builder getLastWriteTimeBuilder() {
        bitField0_ |= 0x00000004;
        onChanged();
        return getLastWriteTimeFieldBuilder().getBuilder();
      }
      /**
       * 
       * Timestamp of last write.
       * 
       *
       * .google.protobuf.Timestamp last_write_time = 3;
       */
      public com.google.protobuf.TimestampOrBuilder getLastWriteTimeOrBuilder() {
        if (lastWriteTimeBuilder_ != null) {
          return lastWriteTimeBuilder_.getMessageOrBuilder();
        } else {
          return lastWriteTime_ == null ?
              com.google.protobuf.Timestamp.getDefaultInstance() : lastWriteTime_;
        }
      }
      /**
       * 
       * Timestamp of last write.
       * 
       *
       * .google.protobuf.Timestamp last_write_time = 3;
       */
      private com.google.protobuf.SingleFieldBuilderV3<
          com.google.protobuf.Timestamp, com.google.protobuf.Timestamp.Builder, com.google.protobuf.TimestampOrBuilder> 
          getLastWriteTimeFieldBuilder() {
        if (lastWriteTimeBuilder_ == null) {
          lastWriteTimeBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
              com.google.protobuf.Timestamp, com.google.protobuf.Timestamp.Builder, com.google.protobuf.TimestampOrBuilder>(
                  getLastWriteTime(),
                  getParentForChildren(),
                  isClean());
          lastWriteTime_ = null;
        }
        return lastWriteTimeBuilder_;
      }

      private com.google.protobuf.Duration maxWriteTimeLag_;
      private com.google.protobuf.SingleFieldBuilderV3<
          com.google.protobuf.Duration, com.google.protobuf.Duration.Builder, com.google.protobuf.DurationOrBuilder> maxWriteTimeLagBuilder_;
      /**
       * 
       * Maximum of differences between write timestamp and create timestamp for all messages, written during last minute.
       * 
       *
       * .google.protobuf.Duration max_write_time_lag = 4;
       * @return Whether the maxWriteTimeLag field is set.
       */
      public boolean hasMaxWriteTimeLag() {
        return ((bitField0_ & 0x00000008) != 0);
      }
      /**
       * 
       * Maximum of differences between write timestamp and create timestamp for all messages, written during last minute.
       * 
       *
       * .google.protobuf.Duration max_write_time_lag = 4;
       * @return The maxWriteTimeLag.
       */
      public com.google.protobuf.Duration getMaxWriteTimeLag() {
        if (maxWriteTimeLagBuilder_ == null) {
          return maxWriteTimeLag_ == null ? com.google.protobuf.Duration.getDefaultInstance() : maxWriteTimeLag_;
        } else {
          return maxWriteTimeLagBuilder_.getMessage();
        }
      }
      /**
       * 
       * Maximum of differences between write timestamp and create timestamp for all messages, written during last minute.
       * 
       *
       * .google.protobuf.Duration max_write_time_lag = 4;
       */
      public Builder setMaxWriteTimeLag(com.google.protobuf.Duration value) {
        if (maxWriteTimeLagBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          maxWriteTimeLag_ = value;
        } else {
          maxWriteTimeLagBuilder_.setMessage(value);
        }
        bitField0_ |= 0x00000008;
        onChanged();
        return this;
      }
      /**
       * 
       * Maximum of differences between write timestamp and create timestamp for all messages, written during last minute.
       * 
       *
       * .google.protobuf.Duration max_write_time_lag = 4;
       */
      public Builder setMaxWriteTimeLag(
          com.google.protobuf.Duration.Builder builderForValue) {
        if (maxWriteTimeLagBuilder_ == null) {
          maxWriteTimeLag_ = builderForValue.build();
        } else {
          maxWriteTimeLagBuilder_.setMessage(builderForValue.build());
        }
        bitField0_ |= 0x00000008;
        onChanged();
        return this;
      }
      /**
       * 
       * Maximum of differences between write timestamp and create timestamp for all messages, written during last minute.
       * 
       *
       * .google.protobuf.Duration max_write_time_lag = 4;
       */
      public Builder mergeMaxWriteTimeLag(com.google.protobuf.Duration value) {
        if (maxWriteTimeLagBuilder_ == null) {
          if (((bitField0_ & 0x00000008) != 0) &&
            maxWriteTimeLag_ != null &&
            maxWriteTimeLag_ != com.google.protobuf.Duration.getDefaultInstance()) {
            getMaxWriteTimeLagBuilder().mergeFrom(value);
          } else {
            maxWriteTimeLag_ = value;
          }
        } else {
          maxWriteTimeLagBuilder_.mergeFrom(value);
        }
        if (maxWriteTimeLag_ != null) {
          bitField0_ |= 0x00000008;
          onChanged();
        }
        return this;
      }
      /**
       * 
       * Maximum of differences between write timestamp and create timestamp for all messages, written during last minute.
       * 
       *
       * .google.protobuf.Duration max_write_time_lag = 4;
       */
      public Builder clearMaxWriteTimeLag() {
        bitField0_ = (bitField0_ & ~0x00000008);
        maxWriteTimeLag_ = null;
        if (maxWriteTimeLagBuilder_ != null) {
          maxWriteTimeLagBuilder_.dispose();
          maxWriteTimeLagBuilder_ = null;
        }
        onChanged();
        return this;
      }
      /**
       * 
       * Maximum of differences between write timestamp and create timestamp for all messages, written during last minute.
       * 
       *
       * .google.protobuf.Duration max_write_time_lag = 4;
       */
      public com.google.protobuf.Duration.Builder getMaxWriteTimeLagBuilder() {
        bitField0_ |= 0x00000008;
        onChanged();
        return getMaxWriteTimeLagFieldBuilder().getBuilder();
      }
      /**
       * 
       * Maximum of differences between write timestamp and create timestamp for all messages, written during last minute.
       * 
       *
       * .google.protobuf.Duration max_write_time_lag = 4;
       */
      public com.google.protobuf.DurationOrBuilder getMaxWriteTimeLagOrBuilder() {
        if (maxWriteTimeLagBuilder_ != null) {
          return maxWriteTimeLagBuilder_.getMessageOrBuilder();
        } else {
          return maxWriteTimeLag_ == null ?
              com.google.protobuf.Duration.getDefaultInstance() : maxWriteTimeLag_;
        }
      }
      /**
       * 
       * Maximum of differences between write timestamp and create timestamp for all messages, written during last minute.
       * 
       *
       * .google.protobuf.Duration max_write_time_lag = 4;
       */
      private com.google.protobuf.SingleFieldBuilderV3<
          com.google.protobuf.Duration, com.google.protobuf.Duration.Builder, com.google.protobuf.DurationOrBuilder> 
          getMaxWriteTimeLagFieldBuilder() {
        if (maxWriteTimeLagBuilder_ == null) {
          maxWriteTimeLagBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
              com.google.protobuf.Duration, com.google.protobuf.Duration.Builder, com.google.protobuf.DurationOrBuilder>(
                  getMaxWriteTimeLag(),
                  getParentForChildren(),
                  isClean());
          maxWriteTimeLag_ = null;
        }
        return maxWriteTimeLagBuilder_;
      }

      private tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat bytesWritten_;
      private com.google.protobuf.SingleFieldBuilderV3<
          tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat, tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat.Builder, tech.ydb.proto.topic.YdbTopic.MultipleWindowsStatOrBuilder> bytesWrittenBuilder_;
      /**
       * 
       * How much bytes were written during several windows in this partition.
       * 
       *
       * .Ydb.Topic.MultipleWindowsStat bytes_written = 5;
       * @return Whether the bytesWritten field is set.
       */
      public boolean hasBytesWritten() {
        return ((bitField0_ & 0x00000010) != 0);
      }
      /**
       * 
       * How much bytes were written during several windows in this partition.
       * 
       *
       * .Ydb.Topic.MultipleWindowsStat bytes_written = 5;
       * @return The bytesWritten.
       */
      public tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat getBytesWritten() {
        if (bytesWrittenBuilder_ == null) {
          return bytesWritten_ == null ? tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat.getDefaultInstance() : bytesWritten_;
        } else {
          return bytesWrittenBuilder_.getMessage();
        }
      }
      /**
       * 
       * How much bytes were written during several windows in this partition.
       * 
       *
       * .Ydb.Topic.MultipleWindowsStat bytes_written = 5;
       */
      public Builder setBytesWritten(tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat value) {
        if (bytesWrittenBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          bytesWritten_ = value;
        } else {
          bytesWrittenBuilder_.setMessage(value);
        }
        bitField0_ |= 0x00000010;
        onChanged();
        return this;
      }
      /**
       * 
       * How much bytes were written during several windows in this partition.
       * 
       *
       * .Ydb.Topic.MultipleWindowsStat bytes_written = 5;
       */
      public Builder setBytesWritten(
          tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat.Builder builderForValue) {
        if (bytesWrittenBuilder_ == null) {
          bytesWritten_ = builderForValue.build();
        } else {
          bytesWrittenBuilder_.setMessage(builderForValue.build());
        }
        bitField0_ |= 0x00000010;
        onChanged();
        return this;
      }
      /**
       * 
       * How much bytes were written during several windows in this partition.
       * 
       *
       * .Ydb.Topic.MultipleWindowsStat bytes_written = 5;
       */
      public Builder mergeBytesWritten(tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat value) {
        if (bytesWrittenBuilder_ == null) {
          if (((bitField0_ & 0x00000010) != 0) &&
            bytesWritten_ != null &&
            bytesWritten_ != tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat.getDefaultInstance()) {
            getBytesWrittenBuilder().mergeFrom(value);
          } else {
            bytesWritten_ = value;
          }
        } else {
          bytesWrittenBuilder_.mergeFrom(value);
        }
        if (bytesWritten_ != null) {
          bitField0_ |= 0x00000010;
          onChanged();
        }
        return this;
      }
      /**
       * 
       * How much bytes were written during several windows in this partition.
       * 
       *
       * .Ydb.Topic.MultipleWindowsStat bytes_written = 5;
       */
      public Builder clearBytesWritten() {
        bitField0_ = (bitField0_ & ~0x00000010);
        bytesWritten_ = null;
        if (bytesWrittenBuilder_ != null) {
          bytesWrittenBuilder_.dispose();
          bytesWrittenBuilder_ = null;
        }
        onChanged();
        return this;
      }
      /**
       * 
       * How much bytes were written during several windows in this partition.
       * 
       *
       * .Ydb.Topic.MultipleWindowsStat bytes_written = 5;
       */
      public tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat.Builder getBytesWrittenBuilder() {
        bitField0_ |= 0x00000010;
        onChanged();
        return getBytesWrittenFieldBuilder().getBuilder();
      }
      /**
       * 
       * How much bytes were written during several windows in this partition.
       * 
       *
       * .Ydb.Topic.MultipleWindowsStat bytes_written = 5;
       */
      public tech.ydb.proto.topic.YdbTopic.MultipleWindowsStatOrBuilder getBytesWrittenOrBuilder() {
        if (bytesWrittenBuilder_ != null) {
          return bytesWrittenBuilder_.getMessageOrBuilder();
        } else {
          return bytesWritten_ == null ?
              tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat.getDefaultInstance() : bytesWritten_;
        }
      }
      /**
       * 
       * How much bytes were written during several windows in this partition.
       * 
       *
       * .Ydb.Topic.MultipleWindowsStat bytes_written = 5;
       */
      private com.google.protobuf.SingleFieldBuilderV3<
          tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat, tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat.Builder, tech.ydb.proto.topic.YdbTopic.MultipleWindowsStatOrBuilder> 
          getBytesWrittenFieldBuilder() {
        if (bytesWrittenBuilder_ == null) {
          bytesWrittenBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
              tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat, tech.ydb.proto.topic.YdbTopic.MultipleWindowsStat.Builder, tech.ydb.proto.topic.YdbTopic.MultipleWindowsStatOrBuilder>(
                  getBytesWritten(),
                  getParentForChildren(),
                  isClean());
          bytesWritten_ = null;
        }
        return bytesWrittenBuilder_;
      }

      private int partitionNodeId_ ;
      /**
       * 
       * Partition host. Useful for debugging purposes.
       * 
       *
       * int32 partition_node_id = 8 [deprecated = true];
       * @deprecated Ydb.Topic.PartitionStats.partition_node_id is deprecated.
       *     See protos/ydb_topic.proto;l=1121
       * @return The partitionNodeId.
       */
      @java.lang.Override
      @java.lang.Deprecated public int getPartitionNodeId() {
        return partitionNodeId_;
      }
      /**
       * 
       * Partition host. Useful for debugging purposes.
       * 
       *
       * int32 partition_node_id = 8 [deprecated = true];
       * @deprecated Ydb.Topic.PartitionStats.partition_node_id is deprecated.
       *     See protos/ydb_topic.proto;l=1121
       * @param value The partitionNodeId to set.
       * @return This builder for chaining.
       */
      @java.lang.Deprecated public Builder setPartitionNodeId(int value) {

        partitionNodeId_ = value;
        bitField0_ |= 0x00000020;
        onChanged();
        return this;
      }
      /**
       * 
       * Partition host. Useful for debugging purposes.
       * 
       *
       * int32 partition_node_id = 8 [deprecated = true];
       * @deprecated Ydb.Topic.PartitionStats.partition_node_id is deprecated.
       *     See protos/ydb_topic.proto;l=1121
       * @return This builder for chaining.
       */
      @java.lang.Deprecated public Builder clearPartitionNodeId() {
        bitField0_ = (bitField0_ & ~0x00000020);
        partitionNodeId_ = 0;
        onChanged();
        return this;
      }
      @java.lang.Override
      public final Builder setUnknownFields(
          final com.google.protobuf.UnknownFieldSet unknownFields) {
        return super.setUnknownFields(unknownFields);
      }

      @java.lang.Override
      public final Builder mergeUnknownFields(
          final com.google.protobuf.UnknownFieldSet unknownFields) {
        return super.mergeUnknownFields(unknownFields);
      }


      // @@protoc_insertion_point(builder_scope:Ydb.Topic.PartitionStats)
    }

    // @@protoc_insertion_point(class_scope:Ydb.Topic.PartitionStats)
    private static final tech.ydb.proto.topic.YdbTopic.PartitionStats DEFAULT_INSTANCE;
    static {
      DEFAULT_INSTANCE = new tech.ydb.proto.topic.YdbTopic.PartitionStats();
    }

    public static tech.ydb.proto.topic.YdbTopic.PartitionStats getDefaultInstance() {
      return DEFAULT_INSTANCE;
    }

    private static final com.google.protobuf.Parser
        PARSER = new com.google.protobuf.AbstractParser() {
      @java.lang.Override
      public PartitionStats parsePartialFrom(
          com.google.protobuf.CodedInputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        Builder builder = newBuilder();
        try {
          builder.mergeFrom(input, extensionRegistry);
        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
          throw e.setUnfinishedMessage(builder.buildPartial());
        } catch (com.google.protobuf.UninitializedMessageException e) {
          throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
        } catch (java.io.IOException e) {
          throw new com.google.protobuf.InvalidProtocolBufferException(e)
              .setUnfinishedMessage(builder.buildPartial());
        }
        return builder.buildPartial();
      }
    };

    public static com.google.protobuf.Parser parser() {
      return PARSER;
    }

    @java.lang.Override
    public com.google.protobuf.Parser getParserForType() {
      return PARSER;
    }

    @java.lang.Override
    public tech.ydb.proto.topic.YdbTopic.PartitionStats getDefaultInstanceForType() {
      return DEFAULT_INSTANCE;
    }

  }

  public interface AlterTopicRequestOrBuilder extends
      // @@protoc_insertion_point(interface_extends:Ydb.Topic.AlterTopicRequest)
      com.google.protobuf.MessageOrBuilder {

    /**
     * .Ydb.Operations.OperationParams operation_params = 1;
     * @return Whether the operationParams field is set.
     */
    boolean hasOperationParams();
    /**
     * .Ydb.Operations.OperationParams operation_params = 1;
     * @return The operationParams.
     */
    tech.ydb.proto.OperationProtos.OperationParams getOperationParams();
    /**
     * .Ydb.Operations.OperationParams operation_params = 1;
     */
    tech.ydb.proto.OperationProtos.OperationParamsOrBuilder getOperationParamsOrBuilder();

    /**
     * 
     * Topic path.
     * 
     *
     * string path = 2;
     * @return The path.
     */
    java.lang.String getPath();
    /**
     * 
     * Topic path.
     * 
     *
     * string path = 2;
     * @return The bytes for path.
     */
    com.google.protobuf.ByteString
        getPathBytes();

    /**
     * 
     * partitioning_settings
     * 
     *
     * .Ydb.Topic.AlterPartitioningSettings alter_partitioning_settings = 3;
     * @return Whether the alterPartitioningSettings field is set.
     */
    boolean hasAlterPartitioningSettings();
    /**
     * 
     * partitioning_settings
     * 
     *
     * .Ydb.Topic.AlterPartitioningSettings alter_partitioning_settings = 3;
     * @return The alterPartitioningSettings.
     */
    tech.ydb.proto.topic.YdbTopic.AlterPartitioningSettings getAlterPartitioningSettings();
    /**
     * 
     * partitioning_settings
     * 
     *
     * .Ydb.Topic.AlterPartitioningSettings alter_partitioning_settings = 3;
     */
    tech.ydb.proto.topic.YdbTopic.AlterPartitioningSettingsOrBuilder getAlterPartitioningSettingsOrBuilder();

    /**
     * 
     * Retention settings.
     * Currently, only one limit may be set, so other should not be set.
     *
     * How long data in partition should be stored. Must be greater than 0 and less than limit for this database.
     * Default limit - 36 hours.
     * 
     *
     * .google.protobuf.Duration set_retention_period = 4;
     * @return Whether the setRetentionPeriod field is set.
     */
    boolean hasSetRetentionPeriod();
    /**
     * 
     * Retention settings.
     * Currently, only one limit may be set, so other should not be set.
     *
     * How long data in partition should be stored. Must be greater than 0 and less than limit for this database.
     * Default limit - 36 hours.
     * 
     *
     * .google.protobuf.Duration set_retention_period = 4;
     * @return The setRetentionPeriod.
     */
    com.google.protobuf.Duration getSetRetentionPeriod();
    /**
     * 
     * Retention settings.
     * Currently, only one limit may be set, so other should not be set.
     *
     * How long data in partition should be stored. Must be greater than 0 and less than limit for this database.
     * Default limit - 36 hours.
     * 
     *
     * .google.protobuf.Duration set_retention_period = 4;
     */
    com.google.protobuf.DurationOrBuilder getSetRetentionPeriodOrBuilder();

    /**
     * 
     * How much data in partition should be stored. Must be greater than 0 and less than limit for this database.
     * 
     *
     * optional int64 set_retention_storage_mb = 5 [(.Ydb.value) = ">= 0"];
     * @return Whether the setRetentionStorageMb field is set.
     */
    boolean hasSetRetentionStorageMb();
    /**
     * 
     * How much data in partition should be stored. Must be greater than 0 and less than limit for this database.
     * 
     *
     * optional int64 set_retention_storage_mb = 5 [(.Ydb.value) = ">= 0"];
     * @return The setRetentionStorageMb.
     */
    long getSetRetentionStorageMb();

    /**
     * 
     * List of allowed codecs for writers.
     * Writes with codec not from this list are forbidden.
     * If empty, codec compatibility check for the topic is disabled.
     * 
     *
     * .Ydb.Topic.SupportedCodecs set_supported_codecs = 7;
     * @return Whether the setSupportedCodecs field is set.
     */
    boolean hasSetSupportedCodecs();
    /**
     * 
     * List of allowed codecs for writers.
     * Writes with codec not from this list are forbidden.
     * If empty, codec compatibility check for the topic is disabled.
     * 
     *
     * .Ydb.Topic.SupportedCodecs set_supported_codecs = 7;
     * @return The setSupportedCodecs.
     */
    tech.ydb.proto.topic.YdbTopic.SupportedCodecs getSetSupportedCodecs();
    /**
     * 
     * List of allowed codecs for writers.
     * Writes with codec not from this list are forbidden.
     * If empty, codec compatibility check for the topic is disabled.
     * 
     *
     * .Ydb.Topic.SupportedCodecs set_supported_codecs = 7;
     */
    tech.ydb.proto.topic.YdbTopic.SupportedCodecsOrBuilder getSetSupportedCodecsOrBuilder();

    /**
     * 
     * Partition write speed in bytes per second. Must be less than database limit. Default limit - 1 MB/s.
     * 
     *
     * optional int64 set_partition_write_speed_bytes_per_second = 8 [(.Ydb.value) = ">= 0"];
     * @return Whether the setPartitionWriteSpeedBytesPerSecond field is set.
     */
    boolean hasSetPartitionWriteSpeedBytesPerSecond();
    /**
     * 
     * Partition write speed in bytes per second. Must be less than database limit. Default limit - 1 MB/s.
     * 
     *
     * optional int64 set_partition_write_speed_bytes_per_second = 8 [(.Ydb.value) = ">= 0"];
     * @return The setPartitionWriteSpeedBytesPerSecond.
     */
    long getSetPartitionWriteSpeedBytesPerSecond();

    /**
     * 
     * Burst size for write in partition, in bytes. Must be less than database limit. Default limit - 1 MB.
     * 
     *
     * optional int64 set_partition_write_burst_bytes = 9 [(.Ydb.value) = ">= 0"];
     * @return Whether the setPartitionWriteBurstBytes field is set.
     */
    boolean hasSetPartitionWriteBurstBytes();
    /**
     * 
     * Burst size for write in partition, in bytes. Must be less than database limit. Default limit - 1 MB.
     * 
     *
     * optional int64 set_partition_write_burst_bytes = 9 [(.Ydb.value) = ">= 0"];
     * @return The setPartitionWriteBurstBytes.
     */
    long getSetPartitionWriteBurstBytes();

    /**
     * 
     * User and server attributes of topic. Server attributes starts from "_" and will be validated by server.
     * Leave the value blank to drop an attribute.
     * 
     *
     * map<string, string> alter_attributes = 10;
     */
    int getAlterAttributesCount();
    /**
     * 
     * User and server attributes of topic. Server attributes starts from "_" and will be validated by server.
     * Leave the value blank to drop an attribute.
     * 
     *
     * map<string, string> alter_attributes = 10;
     */
    boolean containsAlterAttributes(
        java.lang.String key);
    /**
     * Use {@link #getAlterAttributesMap()} instead.
     */
    @java.lang.Deprecated
    java.util.Map
    getAlterAttributes();
    /**
     * 
     * User and server attributes of topic. Server attributes starts from "_" and will be validated by server.
     * Leave the value blank to drop an attribute.
     * 
     *
     * map<string, string> alter_attributes = 10;
     */
    java.util.Map
    getAlterAttributesMap();
    /**
     * 
     * User and server attributes of topic. Server attributes starts from "_" and will be validated by server.
     * Leave the value blank to drop an attribute.
     * 
     *
     * map<string, string> alter_attributes = 10;
     */
    /* nullable */
java.lang.String getAlterAttributesOrDefault(
        java.lang.String key,
        /* nullable */
java.lang.String defaultValue);
    /**
     * 
     * User and server attributes of topic. Server attributes starts from "_" and will be validated by server.
     * Leave the value blank to drop an attribute.
     * 
     *
     * map<string, string> alter_attributes = 10;
     */
    java.lang.String getAlterAttributesOrThrow(
        java.lang.String key);

    /**
     * 
     * Add consumers.
     * 
     *
     * repeated .Ydb.Topic.Consumer add_consumers = 11 [(.Ydb.size) = { ... }
     */
    java.util.List 
        getAddConsumersList();
    /**
     * 
     * Add consumers.
     * 
     *
     * repeated .Ydb.Topic.Consumer add_consumers = 11 [(.Ydb.size) = { ... }
     */
    tech.ydb.proto.topic.YdbTopic.Consumer getAddConsumers(int index);
    /**
     * 
     * Add consumers.
     * 
     *
     * repeated .Ydb.Topic.Consumer add_consumers = 11 [(.Ydb.size) = { ... }
     */
    int getAddConsumersCount();
    /**
     * 
     * Add consumers.
     * 
     *
     * repeated .Ydb.Topic.Consumer add_consumers = 11 [(.Ydb.size) = { ... }
     */
    java.util.List 
        getAddConsumersOrBuilderList();
    /**
     * 
     * Add consumers.
     * 
     *
     * repeated .Ydb.Topic.Consumer add_consumers = 11 [(.Ydb.size) = { ... }
     */
    tech.ydb.proto.topic.YdbTopic.ConsumerOrBuilder getAddConsumersOrBuilder(
        int index);

    /**
     * 
     * Remove consumers (by their names)
     * 
     *
     * repeated string drop_consumers = 12 [(.Ydb.size) = { ... }
     * @return A list containing the dropConsumers.
     */
    java.util.List
        getDropConsumersList();
    /**
     * 
     * Remove consumers (by their names)
     * 
     *
     * repeated string drop_consumers = 12 [(.Ydb.size) = { ... }
     * @return The count of dropConsumers.
     */
    int getDropConsumersCount();
    /**
     * 
     * Remove consumers (by their names)
     * 
     *
     * repeated string drop_consumers = 12 [(.Ydb.size) = { ... }
     * @param index The index of the element to return.
     * @return The dropConsumers at the given index.
     */
    java.lang.String getDropConsumers(int index);
    /**
     * 
     * Remove consumers (by their names)
     * 
     *
     * repeated string drop_consumers = 12 [(.Ydb.size) = { ... }
     * @param index The index of the value to return.
     * @return The bytes of the dropConsumers at the given index.
     */
    com.google.protobuf.ByteString
        getDropConsumersBytes(int index);

    /**
     * 
     * Alter consumers
     * 
     *
     * repeated .Ydb.Topic.AlterConsumer alter_consumers = 13 [(.Ydb.size) = { ... }
     */
    java.util.List 
        getAlterConsumersList();
    /**
     * 
     * Alter consumers
     * 
     *
     * repeated .Ydb.Topic.AlterConsumer alter_consumers = 13 [(.Ydb.size) = { ... }
     */
    tech.ydb.proto.topic.YdbTopic.AlterConsumer getAlterConsumers(int index);
    /**
     * 
     * Alter consumers
     * 
     *
     * repeated .Ydb.Topic.AlterConsumer alter_consumers = 13 [(.Ydb.size) = { ... }
     */
    int getAlterConsumersCount();
    /**
     * 
     * Alter consumers
     * 
     *
     * repeated .Ydb.Topic.AlterConsumer alter_consumers = 13 [(.Ydb.size) = { ... }
     */
    java.util.List 
        getAlterConsumersOrBuilderList();
    /**
     * 
     * Alter consumers
     * 
     *
     * repeated .Ydb.Topic.AlterConsumer alter_consumers = 13 [(.Ydb.size) = { ... }
     */
    tech.ydb.proto.topic.YdbTopic.AlterConsumerOrBuilder getAlterConsumersOrBuilder(
        int index);

    /**
     * 
     * Set metering mode for topic in serverless database.
     * 
     *
     * .Ydb.Topic.MeteringMode set_metering_mode = 14;
     * @return The enum numeric value on the wire for setMeteringMode.
     */
    int getSetMeteringModeValue();
    /**
     * 
     * Set metering mode for topic in serverless database.
     * 
     *
     * .Ydb.Topic.MeteringMode set_metering_mode = 14;
     * @return The setMeteringMode.
     */
    tech.ydb.proto.topic.YdbTopic.MeteringMode getSetMeteringMode();
  }
  /**
   * 
   * Update existing topic request sent from client to server.
   * 
   *
   * Protobuf type {@code Ydb.Topic.AlterTopicRequest}
   */
  public static final class AlterTopicRequest extends
      com.google.protobuf.GeneratedMessageV3 implements
      // @@protoc_insertion_point(message_implements:Ydb.Topic.AlterTopicRequest)
      AlterTopicRequestOrBuilder {
  private static final long serialVersionUID = 0L;
    // Use AlterTopicRequest.newBuilder() to construct.
    private AlterTopicRequest(com.google.protobuf.GeneratedMessageV3.Builder builder) {
      super(builder);
    }
    private AlterTopicRequest() {
      path_ = "";
      addConsumers_ = java.util.Collections.emptyList();
      dropConsumers_ =
          com.google.protobuf.LazyStringArrayList.emptyList();
      alterConsumers_ = java.util.Collections.emptyList();
      setMeteringMode_ = 0;
    }

    @java.lang.Override
    @SuppressWarnings({"unused"})
    protected java.lang.Object newInstance(
        UnusedPrivateParameter unused) {
      return new AlterTopicRequest();
    }

    public static final com.google.protobuf.Descriptors.Descriptor
        getDescriptor() {
      return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_AlterTopicRequest_descriptor;
    }

    @SuppressWarnings({"rawtypes"})
    @java.lang.Override
    protected com.google.protobuf.MapField internalGetMapField(
        int number) {
      switch (number) {
        case 10:
          return internalGetAlterAttributes();
        default:
          throw new RuntimeException(
              "Invalid map field number: " + number);
      }
    }
    @java.lang.Override
    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
        internalGetFieldAccessorTable() {
      return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_AlterTopicRequest_fieldAccessorTable
          .ensureFieldAccessorsInitialized(
              tech.ydb.proto.topic.YdbTopic.AlterTopicRequest.class, tech.ydb.proto.topic.YdbTopic.AlterTopicRequest.Builder.class);
    }

    private int bitField0_;
    public static final int OPERATION_PARAMS_FIELD_NUMBER = 1;
    private tech.ydb.proto.OperationProtos.OperationParams operationParams_;
    /**
     * .Ydb.Operations.OperationParams operation_params = 1;
     * @return Whether the operationParams field is set.
     */
    @java.lang.Override
    public boolean hasOperationParams() {
      return ((bitField0_ & 0x00000001) != 0);
    }
    /**
     * .Ydb.Operations.OperationParams operation_params = 1;
     * @return The operationParams.
     */
    @java.lang.Override
    public tech.ydb.proto.OperationProtos.OperationParams getOperationParams() {
      return operationParams_ == null ? tech.ydb.proto.OperationProtos.OperationParams.getDefaultInstance() : operationParams_;
    }
    /**
     * .Ydb.Operations.OperationParams operation_params = 1;
     */
    @java.lang.Override
    public tech.ydb.proto.OperationProtos.OperationParamsOrBuilder getOperationParamsOrBuilder() {
      return operationParams_ == null ? tech.ydb.proto.OperationProtos.OperationParams.getDefaultInstance() : operationParams_;
    }

    public static final int PATH_FIELD_NUMBER = 2;
    @SuppressWarnings("serial")
    private volatile java.lang.Object path_ = "";
    /**
     * 
     * Topic path.
     * 
     *
     * string path = 2;
     * @return The path.
     */
    @java.lang.Override
    public java.lang.String getPath() {
      java.lang.Object ref = path_;
      if (ref instanceof java.lang.String) {
        return (java.lang.String) ref;
      } else {
        com.google.protobuf.ByteString bs = 
            (com.google.protobuf.ByteString) ref;
        java.lang.String s = bs.toStringUtf8();
        path_ = s;
        return s;
      }
    }
    /**
     * 
     * Topic path.
     * 
     *
     * string path = 2;
     * @return The bytes for path.
     */
    @java.lang.Override
    public com.google.protobuf.ByteString
        getPathBytes() {
      java.lang.Object ref = path_;
      if (ref instanceof java.lang.String) {
        com.google.protobuf.ByteString b = 
            com.google.protobuf.ByteString.copyFromUtf8(
                (java.lang.String) ref);
        path_ = b;
        return b;
      } else {
        return (com.google.protobuf.ByteString) ref;
      }
    }

    public static final int ALTER_PARTITIONING_SETTINGS_FIELD_NUMBER = 3;
    private tech.ydb.proto.topic.YdbTopic.AlterPartitioningSettings alterPartitioningSettings_;
    /**
     * 
     * partitioning_settings
     * 
     *
     * .Ydb.Topic.AlterPartitioningSettings alter_partitioning_settings = 3;
     * @return Whether the alterPartitioningSettings field is set.
     */
    @java.lang.Override
    public boolean hasAlterPartitioningSettings() {
      return ((bitField0_ & 0x00000002) != 0);
    }
    /**
     * 
     * partitioning_settings
     * 
     *
     * .Ydb.Topic.AlterPartitioningSettings alter_partitioning_settings = 3;
     * @return The alterPartitioningSettings.
     */
    @java.lang.Override
    public tech.ydb.proto.topic.YdbTopic.AlterPartitioningSettings getAlterPartitioningSettings() {
      return alterPartitioningSettings_ == null ? tech.ydb.proto.topic.YdbTopic.AlterPartitioningSettings.getDefaultInstance() : alterPartitioningSettings_;
    }
    /**
     * 
     * partitioning_settings
     * 
     *
     * .Ydb.Topic.AlterPartitioningSettings alter_partitioning_settings = 3;
     */
    @java.lang.Override
    public tech.ydb.proto.topic.YdbTopic.AlterPartitioningSettingsOrBuilder getAlterPartitioningSettingsOrBuilder() {
      return alterPartitioningSettings_ == null ? tech.ydb.proto.topic.YdbTopic.AlterPartitioningSettings.getDefaultInstance() : alterPartitioningSettings_;
    }

    public static final int SET_RETENTION_PERIOD_FIELD_NUMBER = 4;
    private com.google.protobuf.Duration setRetentionPeriod_;
    /**
     * 
     * Retention settings.
     * Currently, only one limit may be set, so other should not be set.
     *
     * How long data in partition should be stored. Must be greater than 0 and less than limit for this database.
     * Default limit - 36 hours.
     * 
     *
     * .google.protobuf.Duration set_retention_period = 4;
     * @return Whether the setRetentionPeriod field is set.
     */
    @java.lang.Override
    public boolean hasSetRetentionPeriod() {
      return ((bitField0_ & 0x00000004) != 0);
    }
    /**
     * 
     * Retention settings.
     * Currently, only one limit may be set, so other should not be set.
     *
     * How long data in partition should be stored. Must be greater than 0 and less than limit for this database.
     * Default limit - 36 hours.
     * 
     *
     * .google.protobuf.Duration set_retention_period = 4;
     * @return The setRetentionPeriod.
     */
    @java.lang.Override
    public com.google.protobuf.Duration getSetRetentionPeriod() {
      return setRetentionPeriod_ == null ? com.google.protobuf.Duration.getDefaultInstance() : setRetentionPeriod_;
    }
    /**
     * 
     * Retention settings.
     * Currently, only one limit may be set, so other should not be set.
     *
     * How long data in partition should be stored. Must be greater than 0 and less than limit for this database.
     * Default limit - 36 hours.
     * 
     *
     * .google.protobuf.Duration set_retention_period = 4;
     */
    @java.lang.Override
    public com.google.protobuf.DurationOrBuilder getSetRetentionPeriodOrBuilder() {
      return setRetentionPeriod_ == null ? com.google.protobuf.Duration.getDefaultInstance() : setRetentionPeriod_;
    }

    public static final int SET_RETENTION_STORAGE_MB_FIELD_NUMBER = 5;
    private long setRetentionStorageMb_ = 0L;
    /**
     * 
     * How much data in partition should be stored. Must be greater than 0 and less than limit for this database.
     * 
     *
     * optional int64 set_retention_storage_mb = 5 [(.Ydb.value) = ">= 0"];
     * @return Whether the setRetentionStorageMb field is set.
     */
    @java.lang.Override
    public boolean hasSetRetentionStorageMb() {
      return ((bitField0_ & 0x00000008) != 0);
    }
    /**
     * 
     * How much data in partition should be stored. Must be greater than 0 and less than limit for this database.
     * 
     *
     * optional int64 set_retention_storage_mb = 5 [(.Ydb.value) = ">= 0"];
     * @return The setRetentionStorageMb.
     */
    @java.lang.Override
    public long getSetRetentionStorageMb() {
      return setRetentionStorageMb_;
    }

    public static final int SET_SUPPORTED_CODECS_FIELD_NUMBER = 7;
    private tech.ydb.proto.topic.YdbTopic.SupportedCodecs setSupportedCodecs_;
    /**
     * 
     * List of allowed codecs for writers.
     * Writes with codec not from this list are forbidden.
     * If empty, codec compatibility check for the topic is disabled.
     * 
     *
     * .Ydb.Topic.SupportedCodecs set_supported_codecs = 7;
     * @return Whether the setSupportedCodecs field is set.
     */
    @java.lang.Override
    public boolean hasSetSupportedCodecs() {
      return ((bitField0_ & 0x00000010) != 0);
    }
    /**
     * 
     * List of allowed codecs for writers.
     * Writes with codec not from this list are forbidden.
     * If empty, codec compatibility check for the topic is disabled.
     * 
     *
     * .Ydb.Topic.SupportedCodecs set_supported_codecs = 7;
     * @return The setSupportedCodecs.
     */
    @java.lang.Override
    public tech.ydb.proto.topic.YdbTopic.SupportedCodecs getSetSupportedCodecs() {
      return setSupportedCodecs_ == null ? tech.ydb.proto.topic.YdbTopic.SupportedCodecs.getDefaultInstance() : setSupportedCodecs_;
    }
    /**
     * 
     * List of allowed codecs for writers.
     * Writes with codec not from this list are forbidden.
     * If empty, codec compatibility check for the topic is disabled.
     * 
     *
     * .Ydb.Topic.SupportedCodecs set_supported_codecs = 7;
     */
    @java.lang.Override
    public tech.ydb.proto.topic.YdbTopic.SupportedCodecsOrBuilder getSetSupportedCodecsOrBuilder() {
      return setSupportedCodecs_ == null ? tech.ydb.proto.topic.YdbTopic.SupportedCodecs.getDefaultInstance() : setSupportedCodecs_;
    }

    public static final int SET_PARTITION_WRITE_SPEED_BYTES_PER_SECOND_FIELD_NUMBER = 8;
    private long setPartitionWriteSpeedBytesPerSecond_ = 0L;
    /**
     * 
     * Partition write speed in bytes per second. Must be less than database limit. Default limit - 1 MB/s.
     * 
     *
     * optional int64 set_partition_write_speed_bytes_per_second = 8 [(.Ydb.value) = ">= 0"];
     * @return Whether the setPartitionWriteSpeedBytesPerSecond field is set.
     */
    @java.lang.Override
    public boolean hasSetPartitionWriteSpeedBytesPerSecond() {
      return ((bitField0_ & 0x00000020) != 0);
    }
    /**
     * 
     * Partition write speed in bytes per second. Must be less than database limit. Default limit - 1 MB/s.
     * 
     *
     * optional int64 set_partition_write_speed_bytes_per_second = 8 [(.Ydb.value) = ">= 0"];
     * @return The setPartitionWriteSpeedBytesPerSecond.
     */
    @java.lang.Override
    public long getSetPartitionWriteSpeedBytesPerSecond() {
      return setPartitionWriteSpeedBytesPerSecond_;
    }

    public static final int SET_PARTITION_WRITE_BURST_BYTES_FIELD_NUMBER = 9;
    private long setPartitionWriteBurstBytes_ = 0L;
    /**
     * 
     * Burst size for write in partition, in bytes. Must be less than database limit. Default limit - 1 MB.
     * 
     *
     * optional int64 set_partition_write_burst_bytes = 9 [(.Ydb.value) = ">= 0"];
     * @return Whether the setPartitionWriteBurstBytes field is set.
     */
    @java.lang.Override
    public boolean hasSetPartitionWriteBurstBytes() {
      return ((bitField0_ & 0x00000040) != 0);
    }
    /**
     * 
     * Burst size for write in partition, in bytes. Must be less than database limit. Default limit - 1 MB.
     * 
     *
     * optional int64 set_partition_write_burst_bytes = 9 [(.Ydb.value) = ">= 0"];
     * @return The setPartitionWriteBurstBytes.
     */
    @java.lang.Override
    public long getSetPartitionWriteBurstBytes() {
      return setPartitionWriteBurstBytes_;
    }

    public static final int ALTER_ATTRIBUTES_FIELD_NUMBER = 10;
    private static final class AlterAttributesDefaultEntryHolder {
      static final com.google.protobuf.MapEntry<
          java.lang.String, java.lang.String> defaultEntry =
              com.google.protobuf.MapEntry
              .newDefaultInstance(
                  tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_AlterTopicRequest_AlterAttributesEntry_descriptor, 
                  com.google.protobuf.WireFormat.FieldType.STRING,
                  "",
                  com.google.protobuf.WireFormat.FieldType.STRING,
                  "");
    }
    @SuppressWarnings("serial")
    private com.google.protobuf.MapField<
        java.lang.String, java.lang.String> alterAttributes_;
    private com.google.protobuf.MapField
    internalGetAlterAttributes() {
      if (alterAttributes_ == null) {
        return com.google.protobuf.MapField.emptyMapField(
            AlterAttributesDefaultEntryHolder.defaultEntry);
      }
      return alterAttributes_;
    }
    public int getAlterAttributesCount() {
      return internalGetAlterAttributes().getMap().size();
    }
    /**
     * 
     * User and server attributes of topic. Server attributes starts from "_" and will be validated by server.
     * Leave the value blank to drop an attribute.
     * 
     *
     * map<string, string> alter_attributes = 10;
     */
    @java.lang.Override
    public boolean containsAlterAttributes(
        java.lang.String key) {
      if (key == null) { throw new NullPointerException("map key"); }
      return internalGetAlterAttributes().getMap().containsKey(key);
    }
    /**
     * Use {@link #getAlterAttributesMap()} instead.
     */
    @java.lang.Override
    @java.lang.Deprecated
    public java.util.Map getAlterAttributes() {
      return getAlterAttributesMap();
    }
    /**
     * 
     * User and server attributes of topic. Server attributes starts from "_" and will be validated by server.
     * Leave the value blank to drop an attribute.
     * 
     *
     * map<string, string> alter_attributes = 10;
     */
    @java.lang.Override
    public java.util.Map getAlterAttributesMap() {
      return internalGetAlterAttributes().getMap();
    }
    /**
     * 
     * User and server attributes of topic. Server attributes starts from "_" and will be validated by server.
     * Leave the value blank to drop an attribute.
     * 
     *
     * map<string, string> alter_attributes = 10;
     */
    @java.lang.Override
    public /* nullable */
java.lang.String getAlterAttributesOrDefault(
        java.lang.String key,
        /* nullable */
java.lang.String defaultValue) {
      if (key == null) { throw new NullPointerException("map key"); }
      java.util.Map map =
          internalGetAlterAttributes().getMap();
      return map.containsKey(key) ? map.get(key) : defaultValue;
    }
    /**
     * 
     * User and server attributes of topic. Server attributes starts from "_" and will be validated by server.
     * Leave the value blank to drop an attribute.
     * 
     *
     * map<string, string> alter_attributes = 10;
     */
    @java.lang.Override
    public java.lang.String getAlterAttributesOrThrow(
        java.lang.String key) {
      if (key == null) { throw new NullPointerException("map key"); }
      java.util.Map map =
          internalGetAlterAttributes().getMap();
      if (!map.containsKey(key)) {
        throw new java.lang.IllegalArgumentException();
      }
      return map.get(key);
    }

    public static final int ADD_CONSUMERS_FIELD_NUMBER = 11;
    @SuppressWarnings("serial")
    private java.util.List addConsumers_;
    /**
     * 
     * Add consumers.
     * 
     *
     * repeated .Ydb.Topic.Consumer add_consumers = 11 [(.Ydb.size) = { ... }
     */
    @java.lang.Override
    public java.util.List getAddConsumersList() {
      return addConsumers_;
    }
    /**
     * 
     * Add consumers.
     * 
     *
     * repeated .Ydb.Topic.Consumer add_consumers = 11 [(.Ydb.size) = { ... }
     */
    @java.lang.Override
    public java.util.List 
        getAddConsumersOrBuilderList() {
      return addConsumers_;
    }
    /**
     * 
     * Add consumers.
     * 
     *
     * repeated .Ydb.Topic.Consumer add_consumers = 11 [(.Ydb.size) = { ... }
     */
    @java.lang.Override
    public int getAddConsumersCount() {
      return addConsumers_.size();
    }
    /**
     * 
     * Add consumers.
     * 
     *
     * repeated .Ydb.Topic.Consumer add_consumers = 11 [(.Ydb.size) = { ... }
     */
    @java.lang.Override
    public tech.ydb.proto.topic.YdbTopic.Consumer getAddConsumers(int index) {
      return addConsumers_.get(index);
    }
    /**
     * 
     * Add consumers.
     * 
     *
     * repeated .Ydb.Topic.Consumer add_consumers = 11 [(.Ydb.size) = { ... }
     */
    @java.lang.Override
    public tech.ydb.proto.topic.YdbTopic.ConsumerOrBuilder getAddConsumersOrBuilder(
        int index) {
      return addConsumers_.get(index);
    }

    public static final int DROP_CONSUMERS_FIELD_NUMBER = 12;
    @SuppressWarnings("serial")
    private com.google.protobuf.LazyStringArrayList dropConsumers_ =
        com.google.protobuf.LazyStringArrayList.emptyList();
    /**
     * 
     * Remove consumers (by their names)
     * 
     *
     * repeated string drop_consumers = 12 [(.Ydb.size) = { ... }
     * @return A list containing the dropConsumers.
     */
    public com.google.protobuf.ProtocolStringList
        getDropConsumersList() {
      return dropConsumers_;
    }
    /**
     * 
     * Remove consumers (by their names)
     * 
     *
     * repeated string drop_consumers = 12 [(.Ydb.size) = { ... }
     * @return The count of dropConsumers.
     */
    public int getDropConsumersCount() {
      return dropConsumers_.size();
    }
    /**
     * 
     * Remove consumers (by their names)
     * 
     *
     * repeated string drop_consumers = 12 [(.Ydb.size) = { ... }
     * @param index The index of the element to return.
     * @return The dropConsumers at the given index.
     */
    public java.lang.String getDropConsumers(int index) {
      return dropConsumers_.get(index);
    }
    /**
     * 
     * Remove consumers (by their names)
     * 
     *
     * repeated string drop_consumers = 12 [(.Ydb.size) = { ... }
     * @param index The index of the value to return.
     * @return The bytes of the dropConsumers at the given index.
     */
    public com.google.protobuf.ByteString
        getDropConsumersBytes(int index) {
      return dropConsumers_.getByteString(index);
    }

    public static final int ALTER_CONSUMERS_FIELD_NUMBER = 13;
    @SuppressWarnings("serial")
    private java.util.List alterConsumers_;
    /**
     * 
     * Alter consumers
     * 
     *
     * repeated .Ydb.Topic.AlterConsumer alter_consumers = 13 [(.Ydb.size) = { ... }
     */
    @java.lang.Override
    public java.util.List getAlterConsumersList() {
      return alterConsumers_;
    }
    /**
     * 
     * Alter consumers
     * 
     *
     * repeated .Ydb.Topic.AlterConsumer alter_consumers = 13 [(.Ydb.size) = { ... }
     */
    @java.lang.Override
    public java.util.List 
        getAlterConsumersOrBuilderList() {
      return alterConsumers_;
    }
    /**
     * 
     * Alter consumers
     * 
     *
     * repeated .Ydb.Topic.AlterConsumer alter_consumers = 13 [(.Ydb.size) = { ... }
     */
    @java.lang.Override
    public int getAlterConsumersCount() {
      return alterConsumers_.size();
    }
    /**
     * 
     * Alter consumers
     * 
     *
     * repeated .Ydb.Topic.AlterConsumer alter_consumers = 13 [(.Ydb.size) = { ... }
     */
    @java.lang.Override
    public tech.ydb.proto.topic.YdbTopic.AlterConsumer getAlterConsumers(int index) {
      return alterConsumers_.get(index);
    }
    /**
     * 
     * Alter consumers
     * 
     *
     * repeated .Ydb.Topic.AlterConsumer alter_consumers = 13 [(.Ydb.size) = { ... }
     */
    @java.lang.Override
    public tech.ydb.proto.topic.YdbTopic.AlterConsumerOrBuilder getAlterConsumersOrBuilder(
        int index) {
      return alterConsumers_.get(index);
    }

    public static final int SET_METERING_MODE_FIELD_NUMBER = 14;
    private int setMeteringMode_ = 0;
    /**
     * 
     * Set metering mode for topic in serverless database.
     * 
     *
     * .Ydb.Topic.MeteringMode set_metering_mode = 14;
     * @return The enum numeric value on the wire for setMeteringMode.
     */
    @java.lang.Override public int getSetMeteringModeValue() {
      return setMeteringMode_;
    }
    /**
     * 
     * Set metering mode for topic in serverless database.
     * 
     *
     * .Ydb.Topic.MeteringMode set_metering_mode = 14;
     * @return The setMeteringMode.
     */
    @java.lang.Override public tech.ydb.proto.topic.YdbTopic.MeteringMode getSetMeteringMode() {
      tech.ydb.proto.topic.YdbTopic.MeteringMode result = tech.ydb.proto.topic.YdbTopic.MeteringMode.forNumber(setMeteringMode_);
      return result == null ? tech.ydb.proto.topic.YdbTopic.MeteringMode.UNRECOGNIZED : result;
    }

    private byte memoizedIsInitialized = -1;
    @java.lang.Override
    public final boolean isInitialized() {
      byte isInitialized = memoizedIsInitialized;
      if (isInitialized == 1) return true;
      if (isInitialized == 0) return false;

      memoizedIsInitialized = 1;
      return true;
    }

    @java.lang.Override
    public void writeTo(com.google.protobuf.CodedOutputStream output)
                        throws java.io.IOException {
      if (((bitField0_ & 0x00000001) != 0)) {
        output.writeMessage(1, getOperationParams());
      }
      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(path_)) {
        com.google.protobuf.GeneratedMessageV3.writeString(output, 2, path_);
      }
      if (((bitField0_ & 0x00000002) != 0)) {
        output.writeMessage(3, getAlterPartitioningSettings());
      }
      if (((bitField0_ & 0x00000004) != 0)) {
        output.writeMessage(4, getSetRetentionPeriod());
      }
      if (((bitField0_ & 0x00000008) != 0)) {
        output.writeInt64(5, setRetentionStorageMb_);
      }
      if (((bitField0_ & 0x00000010) != 0)) {
        output.writeMessage(7, getSetSupportedCodecs());
      }
      if (((bitField0_ & 0x00000020) != 0)) {
        output.writeInt64(8, setPartitionWriteSpeedBytesPerSecond_);
      }
      if (((bitField0_ & 0x00000040) != 0)) {
        output.writeInt64(9, setPartitionWriteBurstBytes_);
      }
      com.google.protobuf.GeneratedMessageV3
        .serializeStringMapTo(
          output,
          internalGetAlterAttributes(),
          AlterAttributesDefaultEntryHolder.defaultEntry,
          10);
      for (int i = 0; i < addConsumers_.size(); i++) {
        output.writeMessage(11, addConsumers_.get(i));
      }
      for (int i = 0; i < dropConsumers_.size(); i++) {
        com.google.protobuf.GeneratedMessageV3.writeString(output, 12, dropConsumers_.getRaw(i));
      }
      for (int i = 0; i < alterConsumers_.size(); i++) {
        output.writeMessage(13, alterConsumers_.get(i));
      }
      if (setMeteringMode_ != tech.ydb.proto.topic.YdbTopic.MeteringMode.METERING_MODE_UNSPECIFIED.getNumber()) {
        output.writeEnum(14, setMeteringMode_);
      }
      getUnknownFields().writeTo(output);
    }

    @java.lang.Override
    public int getSerializedSize() {
      int size = memoizedSize;
      if (size != -1) return size;

      size = 0;
      if (((bitField0_ & 0x00000001) != 0)) {
        size += com.google.protobuf.CodedOutputStream
          .computeMessageSize(1, getOperationParams());
      }
      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(path_)) {
        size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, path_);
      }
      if (((bitField0_ & 0x00000002) != 0)) {
        size += com.google.protobuf.CodedOutputStream
          .computeMessageSize(3, getAlterPartitioningSettings());
      }
      if (((bitField0_ & 0x00000004) != 0)) {
        size += com.google.protobuf.CodedOutputStream
          .computeMessageSize(4, getSetRetentionPeriod());
      }
      if (((bitField0_ & 0x00000008) != 0)) {
        size += com.google.protobuf.CodedOutputStream
          .computeInt64Size(5, setRetentionStorageMb_);
      }
      if (((bitField0_ & 0x00000010) != 0)) {
        size += com.google.protobuf.CodedOutputStream
          .computeMessageSize(7, getSetSupportedCodecs());
      }
      if (((bitField0_ & 0x00000020) != 0)) {
        size += com.google.protobuf.CodedOutputStream
          .computeInt64Size(8, setPartitionWriteSpeedBytesPerSecond_);
      }
      if (((bitField0_ & 0x00000040) != 0)) {
        size += com.google.protobuf.CodedOutputStream
          .computeInt64Size(9, setPartitionWriteBurstBytes_);
      }
      for (java.util.Map.Entry entry
           : internalGetAlterAttributes().getMap().entrySet()) {
        com.google.protobuf.MapEntry
        alterAttributes__ = AlterAttributesDefaultEntryHolder.defaultEntry.newBuilderForType()
            .setKey(entry.getKey())
            .setValue(entry.getValue())
            .build();
        size += com.google.protobuf.CodedOutputStream
            .computeMessageSize(10, alterAttributes__);
      }
      for (int i = 0; i < addConsumers_.size(); i++) {
        size += com.google.protobuf.CodedOutputStream
          .computeMessageSize(11, addConsumers_.get(i));
      }
      {
        int dataSize = 0;
        for (int i = 0; i < dropConsumers_.size(); i++) {
          dataSize += computeStringSizeNoTag(dropConsumers_.getRaw(i));
        }
        size += dataSize;
        size += 1 * getDropConsumersList().size();
      }
      for (int i = 0; i < alterConsumers_.size(); i++) {
        size += com.google.protobuf.CodedOutputStream
          .computeMessageSize(13, alterConsumers_.get(i));
      }
      if (setMeteringMode_ != tech.ydb.proto.topic.YdbTopic.MeteringMode.METERING_MODE_UNSPECIFIED.getNumber()) {
        size += com.google.protobuf.CodedOutputStream
          .computeEnumSize(14, setMeteringMode_);
      }
      size += getUnknownFields().getSerializedSize();
      memoizedSize = size;
      return size;
    }

    @java.lang.Override
    public boolean equals(final java.lang.Object obj) {
      if (obj == this) {
       return true;
      }
      if (!(obj instanceof tech.ydb.proto.topic.YdbTopic.AlterTopicRequest)) {
        return super.equals(obj);
      }
      tech.ydb.proto.topic.YdbTopic.AlterTopicRequest other = (tech.ydb.proto.topic.YdbTopic.AlterTopicRequest) obj;

      if (hasOperationParams() != other.hasOperationParams()) return false;
      if (hasOperationParams()) {
        if (!getOperationParams()
            .equals(other.getOperationParams())) return false;
      }
      if (!getPath()
          .equals(other.getPath())) return false;
      if (hasAlterPartitioningSettings() != other.hasAlterPartitioningSettings()) return false;
      if (hasAlterPartitioningSettings()) {
        if (!getAlterPartitioningSettings()
            .equals(other.getAlterPartitioningSettings())) return false;
      }
      if (hasSetRetentionPeriod() != other.hasSetRetentionPeriod()) return false;
      if (hasSetRetentionPeriod()) {
        if (!getSetRetentionPeriod()
            .equals(other.getSetRetentionPeriod())) return false;
      }
      if (hasSetRetentionStorageMb() != other.hasSetRetentionStorageMb()) return false;
      if (hasSetRetentionStorageMb()) {
        if (getSetRetentionStorageMb()
            != other.getSetRetentionStorageMb()) return false;
      }
      if (hasSetSupportedCodecs() != other.hasSetSupportedCodecs()) return false;
      if (hasSetSupportedCodecs()) {
        if (!getSetSupportedCodecs()
            .equals(other.getSetSupportedCodecs())) return false;
      }
      if (hasSetPartitionWriteSpeedBytesPerSecond() != other.hasSetPartitionWriteSpeedBytesPerSecond()) return false;
      if (hasSetPartitionWriteSpeedBytesPerSecond()) {
        if (getSetPartitionWriteSpeedBytesPerSecond()
            != other.getSetPartitionWriteSpeedBytesPerSecond()) return false;
      }
      if (hasSetPartitionWriteBurstBytes() != other.hasSetPartitionWriteBurstBytes()) return false;
      if (hasSetPartitionWriteBurstBytes()) {
        if (getSetPartitionWriteBurstBytes()
            != other.getSetPartitionWriteBurstBytes()) return false;
      }
      if (!internalGetAlterAttributes().equals(
          other.internalGetAlterAttributes())) return false;
      if (!getAddConsumersList()
          .equals(other.getAddConsumersList())) return false;
      if (!getDropConsumersList()
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          operationParams_ = builderForValue.build();
        } else {
          operationParamsBuilder_.setMessage(builderForValue.build());
        }
        bitField0_ |= 0x00000001;
        onChanged();
        return this;
      }
      /**
       * .Ydb.Operations.OperationParams operation_params = 1;
       */
      public Builder mergeOperationParams(tech.ydb.proto.OperationProtos.OperationParams value) {
        if (operationParamsBuilder_ == null) {
          if (((bitField0_ & 0x00000001) != 0) &&
            operationParams_ != null &&
            operationParams_ != tech.ydb.proto.OperationProtos.OperationParams.getDefaultInstance()) {
            getOperationParamsBuilder().mergeFrom(value);
          } else {
            operationParams_ = value;
          }
        } else {
          operationParamsBuilder_.mergeFrom(value);
        }
        if (operationParams_ != null) {
          bitField0_ |= 0x00000001;
          onChanged();
        }
        return this;
      }
      /**
       * .Ydb.Operations.OperationParams operation_params = 1;
       */
      public Builder clearOperationParams() {
        bitField0_ = (bitField0_ & ~0x00000001);
        operationParams_ = null;
        if (operationParamsBuilder_ != null) {
          operationParamsBuilder_.dispose();
          operationParamsBuilder_ = null;
        }
        onChanged();
        return this;
      }
      /**
       * .Ydb.Operations.OperationParams operation_params = 1;
       */
      public tech.ydb.proto.OperationProtos.OperationParams.Builder getOperationParamsBuilder() {
        bitField0_ |= 0x00000001;
        onChanged();
        return getOperationParamsFieldBuilder().getBuilder();
      }
      /**
       * .Ydb.Operations.OperationParams operation_params = 1;
       */
      public tech.ydb.proto.OperationProtos.OperationParamsOrBuilder getOperationParamsOrBuilder() {
        if (operationParamsBuilder_ != null) {
          return operationParamsBuilder_.getMessageOrBuilder();
        } else {
          return operationParams_ == null ?
              tech.ydb.proto.OperationProtos.OperationParams.getDefaultInstance() : operationParams_;
        }
      }
      /**
       * .Ydb.Operations.OperationParams operation_params = 1;
       */
      private com.google.protobuf.SingleFieldBuilderV3<
          tech.ydb.proto.OperationProtos.OperationParams, tech.ydb.proto.OperationProtos.OperationParams.Builder, tech.ydb.proto.OperationProtos.OperationParamsOrBuilder> 
          getOperationParamsFieldBuilder() {
        if (operationParamsBuilder_ == null) {
          operationParamsBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
              tech.ydb.proto.OperationProtos.OperationParams, tech.ydb.proto.OperationProtos.OperationParams.Builder, tech.ydb.proto.OperationProtos.OperationParamsOrBuilder>(
                  getOperationParams(),
                  getParentForChildren(),
                  isClean());
          operationParams_ = null;
        }
        return operationParamsBuilder_;
      }

      private java.lang.Object path_ = "";
      /**
       * 
       * Topic path.
       * 
       *
       * string path = 2;
       * @return The path.
       */
      public java.lang.String getPath() {
        java.lang.Object ref = path_;
        if (!(ref instanceof java.lang.String)) {
          com.google.protobuf.ByteString bs =
              (com.google.protobuf.ByteString) ref;
          java.lang.String s = bs.toStringUtf8();
          path_ = s;
          return s;
        } else {
          return (java.lang.String) ref;
        }
      }
      /**
       * 
       * Topic path.
       * 
       *
       * string path = 2;
       * @return The bytes for path.
       */
      public com.google.protobuf.ByteString
          getPathBytes() {
        java.lang.Object ref = path_;
        if (ref instanceof String) {
          com.google.protobuf.ByteString b = 
              com.google.protobuf.ByteString.copyFromUtf8(
                  (java.lang.String) ref);
          path_ = b;
          return b;
        } else {
          return (com.google.protobuf.ByteString) ref;
        }
      }
      /**
       * 
       * Topic path.
       * 
       *
       * string path = 2;
       * @param value The path to set.
       * @return This builder for chaining.
       */
      public Builder setPath(
          java.lang.String value) {
        if (value == null) { throw new NullPointerException(); }
        path_ = value;
        bitField0_ |= 0x00000002;
        onChanged();
        return this;
      }
      /**
       * 
       * Topic path.
       * 
       *
       * string path = 2;
       * @return This builder for chaining.
       */
      public Builder clearPath() {
        path_ = getDefaultInstance().getPath();
        bitField0_ = (bitField0_ & ~0x00000002);
        onChanged();
        return this;
      }
      /**
       * 
       * Topic path.
       * 
       *
       * string path = 2;
       * @param value The bytes for path to set.
       * @return This builder for chaining.
       */
      public Builder setPathBytes(
          com.google.protobuf.ByteString value) {
        if (value == null) { throw new NullPointerException(); }
        checkByteStringIsUtf8(value);
        path_ = value;
        bitField0_ |= 0x00000002;
        onChanged();
        return this;
      }

      private tech.ydb.proto.topic.YdbTopic.AlterPartitioningSettings alterPartitioningSettings_;
      private com.google.protobuf.SingleFieldBuilderV3<
          tech.ydb.proto.topic.YdbTopic.AlterPartitioningSettings, tech.ydb.proto.topic.YdbTopic.AlterPartitioningSettings.Builder, tech.ydb.proto.topic.YdbTopic.AlterPartitioningSettingsOrBuilder> alterPartitioningSettingsBuilder_;
      /**
       * 
       * partitioning_settings
       * 
       *
       * .Ydb.Topic.AlterPartitioningSettings alter_partitioning_settings = 3;
       * @return Whether the alterPartitioningSettings field is set.
       */
      public boolean hasAlterPartitioningSettings() {
        return ((bitField0_ & 0x00000004) != 0);
      }
      /**
       * 
       * partitioning_settings
       * 
       *
       * .Ydb.Topic.AlterPartitioningSettings alter_partitioning_settings = 3;
       * @return The alterPartitioningSettings.
       */
      public tech.ydb.proto.topic.YdbTopic.AlterPartitioningSettings getAlterPartitioningSettings() {
        if (alterPartitioningSettingsBuilder_ == null) {
          return alterPartitioningSettings_ == null ? tech.ydb.proto.topic.YdbTopic.AlterPartitioningSettings.getDefaultInstance() : alterPartitioningSettings_;
        } else {
          return alterPartitioningSettingsBuilder_.getMessage();
        }
      }
      /**
       * 
       * partitioning_settings
       * 
       *
       * .Ydb.Topic.AlterPartitioningSettings alter_partitioning_settings = 3;
       */
      public Builder setAlterPartitioningSettings(tech.ydb.proto.topic.YdbTopic.AlterPartitioningSettings value) {
        if (alterPartitioningSettingsBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          alterPartitioningSettings_ = value;
        } else {
          alterPartitioningSettingsBuilder_.setMessage(value);
        }
        bitField0_ |= 0x00000004;
        onChanged();
        return this;
      }
      /**
       * 
       * partitioning_settings
       * 
       *
       * .Ydb.Topic.AlterPartitioningSettings alter_partitioning_settings = 3;
       */
      public Builder setAlterPartitioningSettings(
          tech.ydb.proto.topic.YdbTopic.AlterPartitioningSettings.Builder builderForValue) {
        if (alterPartitioningSettingsBuilder_ == null) {
          alterPartitioningSettings_ = builderForValue.build();
        } else {
          alterPartitioningSettingsBuilder_.setMessage(builderForValue.build());
        }
        bitField0_ |= 0x00000004;
        onChanged();
        return this;
      }
      /**
       * 
       * partitioning_settings
       * 
       *
       * .Ydb.Topic.AlterPartitioningSettings alter_partitioning_settings = 3;
       */
      public Builder mergeAlterPartitioningSettings(tech.ydb.proto.topic.YdbTopic.AlterPartitioningSettings value) {
        if (alterPartitioningSettingsBuilder_ == null) {
          if (((bitField0_ & 0x00000004) != 0) &&
            alterPartitioningSettings_ != null &&
            alterPartitioningSettings_ != tech.ydb.proto.topic.YdbTopic.AlterPartitioningSettings.getDefaultInstance()) {
            getAlterPartitioningSettingsBuilder().mergeFrom(value);
          } else {
            alterPartitioningSettings_ = value;
          }
        } else {
          alterPartitioningSettingsBuilder_.mergeFrom(value);
        }
        if (alterPartitioningSettings_ != null) {
          bitField0_ |= 0x00000004;
          onChanged();
        }
        return this;
      }
      /**
       * 
       * partitioning_settings
       * 
       *
       * .Ydb.Topic.AlterPartitioningSettings alter_partitioning_settings = 3;
       */
      public Builder clearAlterPartitioningSettings() {
        bitField0_ = (bitField0_ & ~0x00000004);
        alterPartitioningSettings_ = null;
        if (alterPartitioningSettingsBuilder_ != null) {
          alterPartitioningSettingsBuilder_.dispose();
          alterPartitioningSettingsBuilder_ = null;
        }
        onChanged();
        return this;
      }
      /**
       * 
       * partitioning_settings
       * 
       *
       * .Ydb.Topic.AlterPartitioningSettings alter_partitioning_settings = 3;
       */
      public tech.ydb.proto.topic.YdbTopic.AlterPartitioningSettings.Builder getAlterPartitioningSettingsBuilder() {
        bitField0_ |= 0x00000004;
        onChanged();
        return getAlterPartitioningSettingsFieldBuilder().getBuilder();
      }
      /**
       * 
       * partitioning_settings
       * 
       *
       * .Ydb.Topic.AlterPartitioningSettings alter_partitioning_settings = 3;
       */
      public tech.ydb.proto.topic.YdbTopic.AlterPartitioningSettingsOrBuilder getAlterPartitioningSettingsOrBuilder() {
        if (alterPartitioningSettingsBuilder_ != null) {
          return alterPartitioningSettingsBuilder_.getMessageOrBuilder();
        } else {
          return alterPartitioningSettings_ == null ?
              tech.ydb.proto.topic.YdbTopic.AlterPartitioningSettings.getDefaultInstance() : alterPartitioningSettings_;
        }
      }
      /**
       * 
       * partitioning_settings
       * 
       *
       * .Ydb.Topic.AlterPartitioningSettings alter_partitioning_settings = 3;
       */
      private com.google.protobuf.SingleFieldBuilderV3<
          tech.ydb.proto.topic.YdbTopic.AlterPartitioningSettings, tech.ydb.proto.topic.YdbTopic.AlterPartitioningSettings.Builder, tech.ydb.proto.topic.YdbTopic.AlterPartitioningSettingsOrBuilder> 
          getAlterPartitioningSettingsFieldBuilder() {
        if (alterPartitioningSettingsBuilder_ == null) {
          alterPartitioningSettingsBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
              tech.ydb.proto.topic.YdbTopic.AlterPartitioningSettings, tech.ydb.proto.topic.YdbTopic.AlterPartitioningSettings.Builder, tech.ydb.proto.topic.YdbTopic.AlterPartitioningSettingsOrBuilder>(
                  getAlterPartitioningSettings(),
                  getParentForChildren(),
                  isClean());
          alterPartitioningSettings_ = null;
        }
        return alterPartitioningSettingsBuilder_;
      }

      private com.google.protobuf.Duration setRetentionPeriod_;
      private com.google.protobuf.SingleFieldBuilderV3<
          com.google.protobuf.Duration, com.google.protobuf.Duration.Builder, com.google.protobuf.DurationOrBuilder> setRetentionPeriodBuilder_;
      /**
       * 
       * Retention settings.
       * Currently, only one limit may be set, so other should not be set.
       *
       * How long data in partition should be stored. Must be greater than 0 and less than limit for this database.
       * Default limit - 36 hours.
       * 
       *
       * .google.protobuf.Duration set_retention_period = 4;
       * @return Whether the setRetentionPeriod field is set.
       */
      public boolean hasSetRetentionPeriod() {
        return ((bitField0_ & 0x00000008) != 0);
      }
      /**
       * 
       * Retention settings.
       * Currently, only one limit may be set, so other should not be set.
       *
       * How long data in partition should be stored. Must be greater than 0 and less than limit for this database.
       * Default limit - 36 hours.
       * 
       *
       * .google.protobuf.Duration set_retention_period = 4;
       * @return The setRetentionPeriod.
       */
      public com.google.protobuf.Duration getSetRetentionPeriod() {
        if (setRetentionPeriodBuilder_ == null) {
          return setRetentionPeriod_ == null ? com.google.protobuf.Duration.getDefaultInstance() : setRetentionPeriod_;
        } else {
          return setRetentionPeriodBuilder_.getMessage();
        }
      }
      /**
       * 
       * Retention settings.
       * Currently, only one limit may be set, so other should not be set.
       *
       * How long data in partition should be stored. Must be greater than 0 and less than limit for this database.
       * Default limit - 36 hours.
       * 
       *
       * .google.protobuf.Duration set_retention_period = 4;
       */
      public Builder setSetRetentionPeriod(com.google.protobuf.Duration value) {
        if (setRetentionPeriodBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          setRetentionPeriod_ = value;
        } else {
          setRetentionPeriodBuilder_.setMessage(value);
        }
        bitField0_ |= 0x00000008;
        onChanged();
        return this;
      }
      /**
       * 
       * Retention settings.
       * Currently, only one limit may be set, so other should not be set.
       *
       * How long data in partition should be stored. Must be greater than 0 and less than limit for this database.
       * Default limit - 36 hours.
       * 
       *
       * .google.protobuf.Duration set_retention_period = 4;
       */
      public Builder setSetRetentionPeriod(
          com.google.protobuf.Duration.Builder builderForValue) {
        if (setRetentionPeriodBuilder_ == null) {
          setRetentionPeriod_ = builderForValue.build();
        } else {
          setRetentionPeriodBuilder_.setMessage(builderForValue.build());
        }
        bitField0_ |= 0x00000008;
        onChanged();
        return this;
      }
      /**
       * 
       * Retention settings.
       * Currently, only one limit may be set, so other should not be set.
       *
       * How long data in partition should be stored. Must be greater than 0 and less than limit for this database.
       * Default limit - 36 hours.
       * 
       *
       * .google.protobuf.Duration set_retention_period = 4;
       */
      public Builder mergeSetRetentionPeriod(com.google.protobuf.Duration value) {
        if (setRetentionPeriodBuilder_ == null) {
          if (((bitField0_ & 0x00000008) != 0) &&
            setRetentionPeriod_ != null &&
            setRetentionPeriod_ != com.google.protobuf.Duration.getDefaultInstance()) {
            getSetRetentionPeriodBuilder().mergeFrom(value);
          } else {
            setRetentionPeriod_ = value;
          }
        } else {
          setRetentionPeriodBuilder_.mergeFrom(value);
        }
        if (setRetentionPeriod_ != null) {
          bitField0_ |= 0x00000008;
          onChanged();
        }
        return this;
      }
      /**
       * 
       * Retention settings.
       * Currently, only one limit may be set, so other should not be set.
       *
       * How long data in partition should be stored. Must be greater than 0 and less than limit for this database.
       * Default limit - 36 hours.
       * 
       *
       * .google.protobuf.Duration set_retention_period = 4;
       */
      public Builder clearSetRetentionPeriod() {
        bitField0_ = (bitField0_ & ~0x00000008);
        setRetentionPeriod_ = null;
        if (setRetentionPeriodBuilder_ != null) {
          setRetentionPeriodBuilder_.dispose();
          setRetentionPeriodBuilder_ = null;
        }
        onChanged();
        return this;
      }
      /**
       * 
       * Retention settings.
       * Currently, only one limit may be set, so other should not be set.
       *
       * How long data in partition should be stored. Must be greater than 0 and less than limit for this database.
       * Default limit - 36 hours.
       * 
       *
       * .google.protobuf.Duration set_retention_period = 4;
       */
      public com.google.protobuf.Duration.Builder getSetRetentionPeriodBuilder() {
        bitField0_ |= 0x00000008;
        onChanged();
        return getSetRetentionPeriodFieldBuilder().getBuilder();
      }
      /**
       * 
       * Retention settings.
       * Currently, only one limit may be set, so other should not be set.
       *
       * How long data in partition should be stored. Must be greater than 0 and less than limit for this database.
       * Default limit - 36 hours.
       * 
       *
       * .google.protobuf.Duration set_retention_period = 4;
       */
      public com.google.protobuf.DurationOrBuilder getSetRetentionPeriodOrBuilder() {
        if (setRetentionPeriodBuilder_ != null) {
          return setRetentionPeriodBuilder_.getMessageOrBuilder();
        } else {
          return setRetentionPeriod_ == null ?
              com.google.protobuf.Duration.getDefaultInstance() : setRetentionPeriod_;
        }
      }
      /**
       * 
       * Retention settings.
       * Currently, only one limit may be set, so other should not be set.
       *
       * How long data in partition should be stored. Must be greater than 0 and less than limit for this database.
       * Default limit - 36 hours.
       * 
       *
       * .google.protobuf.Duration set_retention_period = 4;
       */
      private com.google.protobuf.SingleFieldBuilderV3<
          com.google.protobuf.Duration, com.google.protobuf.Duration.Builder, com.google.protobuf.DurationOrBuilder> 
          getSetRetentionPeriodFieldBuilder() {
        if (setRetentionPeriodBuilder_ == null) {
          setRetentionPeriodBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
              com.google.protobuf.Duration, com.google.protobuf.Duration.Builder, com.google.protobuf.DurationOrBuilder>(
                  getSetRetentionPeriod(),
                  getParentForChildren(),
                  isClean());
          setRetentionPeriod_ = null;
        }
        return setRetentionPeriodBuilder_;
      }

      private long setRetentionStorageMb_ ;
      /**
       * 
       * How much data in partition should be stored. Must be greater than 0 and less than limit for this database.
       * 
       *
       * optional int64 set_retention_storage_mb = 5 [(.Ydb.value) = ">= 0"];
       * @return Whether the setRetentionStorageMb field is set.
       */
      @java.lang.Override
      public boolean hasSetRetentionStorageMb() {
        return ((bitField0_ & 0x00000010) != 0);
      }
      /**
       * 
       * How much data in partition should be stored. Must be greater than 0 and less than limit for this database.
       * 
       *
       * optional int64 set_retention_storage_mb = 5 [(.Ydb.value) = ">= 0"];
       * @return The setRetentionStorageMb.
       */
      @java.lang.Override
      public long getSetRetentionStorageMb() {
        return setRetentionStorageMb_;
      }
      /**
       * 
       * How much data in partition should be stored. Must be greater than 0 and less than limit for this database.
       * 
       *
       * optional int64 set_retention_storage_mb = 5 [(.Ydb.value) = ">= 0"];
       * @param value The setRetentionStorageMb to set.
       * @return This builder for chaining.
       */
      public Builder setSetRetentionStorageMb(long value) {

        setRetentionStorageMb_ = value;
        bitField0_ |= 0x00000010;
        onChanged();
        return this;
      }
      /**
       * 
       * How much data in partition should be stored. Must be greater than 0 and less than limit for this database.
       * 
       *
       * optional int64 set_retention_storage_mb = 5 [(.Ydb.value) = ">= 0"];
       * @return This builder for chaining.
       */
      public Builder clearSetRetentionStorageMb() {
        bitField0_ = (bitField0_ & ~0x00000010);
        setRetentionStorageMb_ = 0L;
        onChanged();
        return this;
      }

      private tech.ydb.proto.topic.YdbTopic.SupportedCodecs setSupportedCodecs_;
      private com.google.protobuf.SingleFieldBuilderV3<
          tech.ydb.proto.topic.YdbTopic.SupportedCodecs, tech.ydb.proto.topic.YdbTopic.SupportedCodecs.Builder, tech.ydb.proto.topic.YdbTopic.SupportedCodecsOrBuilder> setSupportedCodecsBuilder_;
      /**
       * 
       * List of allowed codecs for writers.
       * Writes with codec not from this list are forbidden.
       * If empty, codec compatibility check for the topic is disabled.
       * 
       *
       * .Ydb.Topic.SupportedCodecs set_supported_codecs = 7;
       * @return Whether the setSupportedCodecs field is set.
       */
      public boolean hasSetSupportedCodecs() {
        return ((bitField0_ & 0x00000020) != 0);
      }
      /**
       * 
       * List of allowed codecs for writers.
       * Writes with codec not from this list are forbidden.
       * If empty, codec compatibility check for the topic is disabled.
       * 
       *
       * .Ydb.Topic.SupportedCodecs set_supported_codecs = 7;
       * @return The setSupportedCodecs.
       */
      public tech.ydb.proto.topic.YdbTopic.SupportedCodecs getSetSupportedCodecs() {
        if (setSupportedCodecsBuilder_ == null) {
          return setSupportedCodecs_ == null ? tech.ydb.proto.topic.YdbTopic.SupportedCodecs.getDefaultInstance() : setSupportedCodecs_;
        } else {
          return setSupportedCodecsBuilder_.getMessage();
        }
      }
      /**
       * 
       * List of allowed codecs for writers.
       * Writes with codec not from this list are forbidden.
       * If empty, codec compatibility check for the topic is disabled.
       * 
       *
       * .Ydb.Topic.SupportedCodecs set_supported_codecs = 7;
       */
      public Builder setSetSupportedCodecs(tech.ydb.proto.topic.YdbTopic.SupportedCodecs value) {
        if (setSupportedCodecsBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          setSupportedCodecs_ = value;
        } else {
          setSupportedCodecsBuilder_.setMessage(value);
        }
        bitField0_ |= 0x00000020;
        onChanged();
        return this;
      }
      /**
       * 
       * List of allowed codecs for writers.
       * Writes with codec not from this list are forbidden.
       * If empty, codec compatibility check for the topic is disabled.
       * 
       *
       * .Ydb.Topic.SupportedCodecs set_supported_codecs = 7;
       */
      public Builder setSetSupportedCodecs(
          tech.ydb.proto.topic.YdbTopic.SupportedCodecs.Builder builderForValue) {
        if (setSupportedCodecsBuilder_ == null) {
          setSupportedCodecs_ = builderForValue.build();
        } else {
          setSupportedCodecsBuilder_.setMessage(builderForValue.build());
        }
        bitField0_ |= 0x00000020;
        onChanged();
        return this;
      }
      /**
       * 
       * List of allowed codecs for writers.
       * Writes with codec not from this list are forbidden.
       * If empty, codec compatibility check for the topic is disabled.
       * 
       *
       * .Ydb.Topic.SupportedCodecs set_supported_codecs = 7;
       */
      public Builder mergeSetSupportedCodecs(tech.ydb.proto.topic.YdbTopic.SupportedCodecs value) {
        if (setSupportedCodecsBuilder_ == null) {
          if (((bitField0_ & 0x00000020) != 0) &&
            setSupportedCodecs_ != null &&
            setSupportedCodecs_ != tech.ydb.proto.topic.YdbTopic.SupportedCodecs.getDefaultInstance()) {
            getSetSupportedCodecsBuilder().mergeFrom(value);
          } else {
            setSupportedCodecs_ = value;
          }
        } else {
          setSupportedCodecsBuilder_.mergeFrom(value);
        }
        if (setSupportedCodecs_ != null) {
          bitField0_ |= 0x00000020;
          onChanged();
        }
        return this;
      }
      /**
       * 
       * List of allowed codecs for writers.
       * Writes with codec not from this list are forbidden.
       * If empty, codec compatibility check for the topic is disabled.
       * 
       *
       * .Ydb.Topic.SupportedCodecs set_supported_codecs = 7;
       */
      public Builder clearSetSupportedCodecs() {
        bitField0_ = (bitField0_ & ~0x00000020);
        setSupportedCodecs_ = null;
        if (setSupportedCodecsBuilder_ != null) {
          setSupportedCodecsBuilder_.dispose();
          setSupportedCodecsBuilder_ = null;
        }
        onChanged();
        return this;
      }
      /**
       * 
       * List of allowed codecs for writers.
       * Writes with codec not from this list are forbidden.
       * If empty, codec compatibility check for the topic is disabled.
       * 
       *
       * .Ydb.Topic.SupportedCodecs set_supported_codecs = 7;
       */
      public tech.ydb.proto.topic.YdbTopic.SupportedCodecs.Builder getSetSupportedCodecsBuilder() {
        bitField0_ |= 0x00000020;
        onChanged();
        return getSetSupportedCodecsFieldBuilder().getBuilder();
      }
      /**
       * 
       * List of allowed codecs for writers.
       * Writes with codec not from this list are forbidden.
       * If empty, codec compatibility check for the topic is disabled.
       * 
       *
       * .Ydb.Topic.SupportedCodecs set_supported_codecs = 7;
       */
      public tech.ydb.proto.topic.YdbTopic.SupportedCodecsOrBuilder getSetSupportedCodecsOrBuilder() {
        if (setSupportedCodecsBuilder_ != null) {
          return setSupportedCodecsBuilder_.getMessageOrBuilder();
        } else {
          return setSupportedCodecs_ == null ?
              tech.ydb.proto.topic.YdbTopic.SupportedCodecs.getDefaultInstance() : setSupportedCodecs_;
        }
      }
      /**
       * 
       * List of allowed codecs for writers.
       * Writes with codec not from this list are forbidden.
       * If empty, codec compatibility check for the topic is disabled.
       * 
       *
       * .Ydb.Topic.SupportedCodecs set_supported_codecs = 7;
       */
      private com.google.protobuf.SingleFieldBuilderV3<
          tech.ydb.proto.topic.YdbTopic.SupportedCodecs, tech.ydb.proto.topic.YdbTopic.SupportedCodecs.Builder, tech.ydb.proto.topic.YdbTopic.SupportedCodecsOrBuilder> 
          getSetSupportedCodecsFieldBuilder() {
        if (setSupportedCodecsBuilder_ == null) {
          setSupportedCodecsBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
              tech.ydb.proto.topic.YdbTopic.SupportedCodecs, tech.ydb.proto.topic.YdbTopic.SupportedCodecs.Builder, tech.ydb.proto.topic.YdbTopic.SupportedCodecsOrBuilder>(
                  getSetSupportedCodecs(),
                  getParentForChildren(),
                  isClean());
          setSupportedCodecs_ = null;
        }
        return setSupportedCodecsBuilder_;
      }

      private long setPartitionWriteSpeedBytesPerSecond_ ;
      /**
       * 
       * Partition write speed in bytes per second. Must be less than database limit. Default limit - 1 MB/s.
       * 
       *
       * optional int64 set_partition_write_speed_bytes_per_second = 8 [(.Ydb.value) = ">= 0"];
       * @return Whether the setPartitionWriteSpeedBytesPerSecond field is set.
       */
      @java.lang.Override
      public boolean hasSetPartitionWriteSpeedBytesPerSecond() {
        return ((bitField0_ & 0x00000040) != 0);
      }
      /**
       * 
       * Partition write speed in bytes per second. Must be less than database limit. Default limit - 1 MB/s.
       * 
       *
       * optional int64 set_partition_write_speed_bytes_per_second = 8 [(.Ydb.value) = ">= 0"];
       * @return The setPartitionWriteSpeedBytesPerSecond.
       */
      @java.lang.Override
      public long getSetPartitionWriteSpeedBytesPerSecond() {
        return setPartitionWriteSpeedBytesPerSecond_;
      }
      /**
       * 
       * Partition write speed in bytes per second. Must be less than database limit. Default limit - 1 MB/s.
       * 
       *
       * optional int64 set_partition_write_speed_bytes_per_second = 8 [(.Ydb.value) = ">= 0"];
       * @param value The setPartitionWriteSpeedBytesPerSecond to set.
       * @return This builder for chaining.
       */
      public Builder setSetPartitionWriteSpeedBytesPerSecond(long value) {

        setPartitionWriteSpeedBytesPerSecond_ = value;
        bitField0_ |= 0x00000040;
        onChanged();
        return this;
      }
      /**
       * 
       * Partition write speed in bytes per second. Must be less than database limit. Default limit - 1 MB/s.
       * 
       *
       * optional int64 set_partition_write_speed_bytes_per_second = 8 [(.Ydb.value) = ">= 0"];
       * @return This builder for chaining.
       */
      public Builder clearSetPartitionWriteSpeedBytesPerSecond() {
        bitField0_ = (bitField0_ & ~0x00000040);
        setPartitionWriteSpeedBytesPerSecond_ = 0L;
        onChanged();
        return this;
      }

      private long setPartitionWriteBurstBytes_ ;
      /**
       * 
       * Burst size for write in partition, in bytes. Must be less than database limit. Default limit - 1 MB.
       * 
       *
       * optional int64 set_partition_write_burst_bytes = 9 [(.Ydb.value) = ">= 0"];
       * @return Whether the setPartitionWriteBurstBytes field is set.
       */
      @java.lang.Override
      public boolean hasSetPartitionWriteBurstBytes() {
        return ((bitField0_ & 0x00000080) != 0);
      }
      /**
       * 
       * Burst size for write in partition, in bytes. Must be less than database limit. Default limit - 1 MB.
       * 
       *
       * optional int64 set_partition_write_burst_bytes = 9 [(.Ydb.value) = ">= 0"];
       * @return The setPartitionWriteBurstBytes.
       */
      @java.lang.Override
      public long getSetPartitionWriteBurstBytes() {
        return setPartitionWriteBurstBytes_;
      }
      /**
       * 
       * Burst size for write in partition, in bytes. Must be less than database limit. Default limit - 1 MB.
       * 
       *
       * optional int64 set_partition_write_burst_bytes = 9 [(.Ydb.value) = ">= 0"];
       * @param value The setPartitionWriteBurstBytes to set.
       * @return This builder for chaining.
       */
      public Builder setSetPartitionWriteBurstBytes(long value) {

        setPartitionWriteBurstBytes_ = value;
        bitField0_ |= 0x00000080;
        onChanged();
        return this;
      }
      /**
       * 
       * Burst size for write in partition, in bytes. Must be less than database limit. Default limit - 1 MB.
       * 
       *
       * optional int64 set_partition_write_burst_bytes = 9 [(.Ydb.value) = ">= 0"];
       * @return This builder for chaining.
       */
      public Builder clearSetPartitionWriteBurstBytes() {
        bitField0_ = (bitField0_ & ~0x00000080);
        setPartitionWriteBurstBytes_ = 0L;
        onChanged();
        return this;
      }

      private com.google.protobuf.MapField<
          java.lang.String, java.lang.String> alterAttributes_;
      private com.google.protobuf.MapField
          internalGetAlterAttributes() {
        if (alterAttributes_ == null) {
          return com.google.protobuf.MapField.emptyMapField(
              AlterAttributesDefaultEntryHolder.defaultEntry);
        }
        return alterAttributes_;
      }
      private com.google.protobuf.MapField
          internalGetMutableAlterAttributes() {
        if (alterAttributes_ == null) {
          alterAttributes_ = com.google.protobuf.MapField.newMapField(
              AlterAttributesDefaultEntryHolder.defaultEntry);
        }
        if (!alterAttributes_.isMutable()) {
          alterAttributes_ = alterAttributes_.copy();
        }
        bitField0_ |= 0x00000100;
        onChanged();
        return alterAttributes_;
      }
      public int getAlterAttributesCount() {
        return internalGetAlterAttributes().getMap().size();
      }
      /**
       * 
       * User and server attributes of topic. Server attributes starts from "_" and will be validated by server.
       * Leave the value blank to drop an attribute.
       * 
       *
       * map<string, string> alter_attributes = 10;
       */
      @java.lang.Override
      public boolean containsAlterAttributes(
          java.lang.String key) {
        if (key == null) { throw new NullPointerException("map key"); }
        return internalGetAlterAttributes().getMap().containsKey(key);
      }
      /**
       * Use {@link #getAlterAttributesMap()} instead.
       */
      @java.lang.Override
      @java.lang.Deprecated
      public java.util.Map getAlterAttributes() {
        return getAlterAttributesMap();
      }
      /**
       * 
       * User and server attributes of topic. Server attributes starts from "_" and will be validated by server.
       * Leave the value blank to drop an attribute.
       * 
       *
       * map<string, string> alter_attributes = 10;
       */
      @java.lang.Override
      public java.util.Map getAlterAttributesMap() {
        return internalGetAlterAttributes().getMap();
      }
      /**
       * 
       * User and server attributes of topic. Server attributes starts from "_" and will be validated by server.
       * Leave the value blank to drop an attribute.
       * 
       *
       * map<string, string> alter_attributes = 10;
       */
      @java.lang.Override
      public /* nullable */
java.lang.String getAlterAttributesOrDefault(
          java.lang.String key,
          /* nullable */
java.lang.String defaultValue) {
        if (key == null) { throw new NullPointerException("map key"); }
        java.util.Map map =
            internalGetAlterAttributes().getMap();
        return map.containsKey(key) ? map.get(key) : defaultValue;
      }
      /**
       * 
       * User and server attributes of topic. Server attributes starts from "_" and will be validated by server.
       * Leave the value blank to drop an attribute.
       * 
       *
       * map<string, string> alter_attributes = 10;
       */
      @java.lang.Override
      public java.lang.String getAlterAttributesOrThrow(
          java.lang.String key) {
        if (key == null) { throw new NullPointerException("map key"); }
        java.util.Map map =
            internalGetAlterAttributes().getMap();
        if (!map.containsKey(key)) {
          throw new java.lang.IllegalArgumentException();
        }
        return map.get(key);
      }
      public Builder clearAlterAttributes() {
        bitField0_ = (bitField0_ & ~0x00000100);
        internalGetMutableAlterAttributes().getMutableMap()
            .clear();
        return this;
      }
      /**
       * 
       * User and server attributes of topic. Server attributes starts from "_" and will be validated by server.
       * Leave the value blank to drop an attribute.
       * 
       *
       * map<string, string> alter_attributes = 10;
       */
      public Builder removeAlterAttributes(
          java.lang.String key) {
        if (key == null) { throw new NullPointerException("map key"); }
        internalGetMutableAlterAttributes().getMutableMap()
            .remove(key);
        return this;
      }
      /**
       * Use alternate mutation accessors instead.
       */
      @java.lang.Deprecated
      public java.util.Map
          getMutableAlterAttributes() {
        bitField0_ |= 0x00000100;
        return internalGetMutableAlterAttributes().getMutableMap();
      }
      /**
       * 
       * User and server attributes of topic. Server attributes starts from "_" and will be validated by server.
       * Leave the value blank to drop an attribute.
       * 
       *
       * map<string, string> alter_attributes = 10;
       */
      public Builder putAlterAttributes(
          java.lang.String key,
          java.lang.String value) {
        if (key == null) { throw new NullPointerException("map key"); }
        if (value == null) { throw new NullPointerException("map value"); }
        internalGetMutableAlterAttributes().getMutableMap()
            .put(key, value);
        bitField0_ |= 0x00000100;
        return this;
      }
      /**
       * 
       * User and server attributes of topic. Server attributes starts from "_" and will be validated by server.
       * Leave the value blank to drop an attribute.
       * 
       *
       * map<string, string> alter_attributes = 10;
       */
      public Builder putAllAlterAttributes(
          java.util.Map values) {
        internalGetMutableAlterAttributes().getMutableMap()
            .putAll(values);
        bitField0_ |= 0x00000100;
        return this;
      }

      private java.util.List addConsumers_ =
        java.util.Collections.emptyList();
      private void ensureAddConsumersIsMutable() {
        if (!((bitField0_ & 0x00000200) != 0)) {
          addConsumers_ = new java.util.ArrayList(addConsumers_);
          bitField0_ |= 0x00000200;
         }
      }

      private com.google.protobuf.RepeatedFieldBuilderV3<
          tech.ydb.proto.topic.YdbTopic.Consumer, tech.ydb.proto.topic.YdbTopic.Consumer.Builder, tech.ydb.proto.topic.YdbTopic.ConsumerOrBuilder> addConsumersBuilder_;

      /**
       * 
       * Add consumers.
       * 
       *
       * repeated .Ydb.Topic.Consumer add_consumers = 11 [(.Ydb.size) = { ... }
       */
      public java.util.List getAddConsumersList() {
        if (addConsumersBuilder_ == null) {
          return java.util.Collections.unmodifiableList(addConsumers_);
        } else {
          return addConsumersBuilder_.getMessageList();
        }
      }
      /**
       * 
       * Add consumers.
       * 
       *
       * repeated .Ydb.Topic.Consumer add_consumers = 11 [(.Ydb.size) = { ... }
       */
      public int getAddConsumersCount() {
        if (addConsumersBuilder_ == null) {
          return addConsumers_.size();
        } else {
          return addConsumersBuilder_.getCount();
        }
      }
      /**
       * 
       * Add consumers.
       * 
       *
       * repeated .Ydb.Topic.Consumer add_consumers = 11 [(.Ydb.size) = { ... }
       */
      public tech.ydb.proto.topic.YdbTopic.Consumer getAddConsumers(int index) {
        if (addConsumersBuilder_ == null) {
          return addConsumers_.get(index);
        } else {
          return addConsumersBuilder_.getMessage(index);
        }
      }
      /**
       * 
       * Add consumers.
       * 
       *
       * repeated .Ydb.Topic.Consumer add_consumers = 11 [(.Ydb.size) = { ... }
       */
      public Builder setAddConsumers(
          int index, tech.ydb.proto.topic.YdbTopic.Consumer value) {
        if (addConsumersBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          ensureAddConsumersIsMutable();
          addConsumers_.set(index, value);
          onChanged();
        } else {
          addConsumersBuilder_.setMessage(index, value);
        }
        return this;
      }
      /**
       * 
       * Add consumers.
       * 
       *
       * repeated .Ydb.Topic.Consumer add_consumers = 11 [(.Ydb.size) = { ... }
       */
      public Builder setAddConsumers(
          int index, tech.ydb.proto.topic.YdbTopic.Consumer.Builder builderForValue) {
        if (addConsumersBuilder_ == null) {
          ensureAddConsumersIsMutable();
          addConsumers_.set(index, builderForValue.build());
          onChanged();
        } else {
          addConsumersBuilder_.setMessage(index, builderForValue.build());
        }
        return this;
      }
      /**
       * 
       * Add consumers.
       * 
       *
       * repeated .Ydb.Topic.Consumer add_consumers = 11 [(.Ydb.size) = { ... }
       */
      public Builder addAddConsumers(tech.ydb.proto.topic.YdbTopic.Consumer value) {
        if (addConsumersBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          ensureAddConsumersIsMutable();
          addConsumers_.add(value);
          onChanged();
        } else {
          addConsumersBuilder_.addMessage(value);
        }
        return this;
      }
      /**
       * 
       * Add consumers.
       * 
       *
       * repeated .Ydb.Topic.Consumer add_consumers = 11 [(.Ydb.size) = { ... }
       */
      public Builder addAddConsumers(
          int index, tech.ydb.proto.topic.YdbTopic.Consumer value) {
        if (addConsumersBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          ensureAddConsumersIsMutable();
          addConsumers_.add(index, value);
          onChanged();
        } else {
          addConsumersBuilder_.addMessage(index, value);
        }
        return this;
      }
      /**
       * 
       * Add consumers.
       * 
       *
       * repeated .Ydb.Topic.Consumer add_consumers = 11 [(.Ydb.size) = { ... }
       */
      public Builder addAddConsumers(
          tech.ydb.proto.topic.YdbTopic.Consumer.Builder builderForValue) {
        if (addConsumersBuilder_ == null) {
          ensureAddConsumersIsMutable();
          addConsumers_.add(builderForValue.build());
          onChanged();
        } else {
          addConsumersBuilder_.addMessage(builderForValue.build());
        }
        return this;
      }
      /**
       * 
       * Add consumers.
       * 
       *
       * repeated .Ydb.Topic.Consumer add_consumers = 11 [(.Ydb.size) = { ... }
       */
      public Builder addAddConsumers(
          int index, tech.ydb.proto.topic.YdbTopic.Consumer.Builder builderForValue) {
        if (addConsumersBuilder_ == null) {
          ensureAddConsumersIsMutable();
          addConsumers_.add(index, builderForValue.build());
          onChanged();
        } else {
          addConsumersBuilder_.addMessage(index, builderForValue.build());
        }
        return this;
      }
      /**
       * 
       * Add consumers.
       * 
       *
       * repeated .Ydb.Topic.Consumer add_consumers = 11 [(.Ydb.size) = { ... }
       */
      public Builder addAllAddConsumers(
          java.lang.Iterable values) {
        if (addConsumersBuilder_ == null) {
          ensureAddConsumersIsMutable();
          com.google.protobuf.AbstractMessageLite.Builder.addAll(
              values, addConsumers_);
          onChanged();
        } else {
          addConsumersBuilder_.addAllMessages(values);
        }
        return this;
      }
      /**
       * 
       * Add consumers.
       * 
       *
       * repeated .Ydb.Topic.Consumer add_consumers = 11 [(.Ydb.size) = { ... }
       */
      public Builder clearAddConsumers() {
        if (addConsumersBuilder_ == null) {
          addConsumers_ = java.util.Collections.emptyList();
          bitField0_ = (bitField0_ & ~0x00000200);
          onChanged();
        } else {
          addConsumersBuilder_.clear();
        }
        return this;
      }
      /**
       * 
       * Add consumers.
       * 
       *
       * repeated .Ydb.Topic.Consumer add_consumers = 11 [(.Ydb.size) = { ... }
       */
      public Builder removeAddConsumers(int index) {
        if (addConsumersBuilder_ == null) {
          ensureAddConsumersIsMutable();
          addConsumers_.remove(index);
          onChanged();
        } else {
          addConsumersBuilder_.remove(index);
        }
        return this;
      }
      /**
       * 
       * Add consumers.
       * 
       *
       * repeated .Ydb.Topic.Consumer add_consumers = 11 [(.Ydb.size) = { ... }
       */
      public tech.ydb.proto.topic.YdbTopic.Consumer.Builder getAddConsumersBuilder(
          int index) {
        return getAddConsumersFieldBuilder().getBuilder(index);
      }
      /**
       * 
       * Add consumers.
       * 
       *
       * repeated .Ydb.Topic.Consumer add_consumers = 11 [(.Ydb.size) = { ... }
       */
      public tech.ydb.proto.topic.YdbTopic.ConsumerOrBuilder getAddConsumersOrBuilder(
          int index) {
        if (addConsumersBuilder_ == null) {
          return addConsumers_.get(index);  } else {
          return addConsumersBuilder_.getMessageOrBuilder(index);
        }
      }
      /**
       * 
       * Add consumers.
       * 
       *
       * repeated .Ydb.Topic.Consumer add_consumers = 11 [(.Ydb.size) = { ... }
       */
      public java.util.List 
           getAddConsumersOrBuilderList() {
        if (addConsumersBuilder_ != null) {
          return addConsumersBuilder_.getMessageOrBuilderList();
        } else {
          return java.util.Collections.unmodifiableList(addConsumers_);
        }
      }
      /**
       * 
       * Add consumers.
       * 
       *
       * repeated .Ydb.Topic.Consumer add_consumers = 11 [(.Ydb.size) = { ... }
       */
      public tech.ydb.proto.topic.YdbTopic.Consumer.Builder addAddConsumersBuilder() {
        return getAddConsumersFieldBuilder().addBuilder(
            tech.ydb.proto.topic.YdbTopic.Consumer.getDefaultInstance());
      }
      /**
       * 
       * Add consumers.
       * 
       *
       * repeated .Ydb.Topic.Consumer add_consumers = 11 [(.Ydb.size) = { ... }
       */
      public tech.ydb.proto.topic.YdbTopic.Consumer.Builder addAddConsumersBuilder(
          int index) {
        return getAddConsumersFieldBuilder().addBuilder(
            index, tech.ydb.proto.topic.YdbTopic.Consumer.getDefaultInstance());
      }
      /**
       * 
       * Add consumers.
       * 
       *
       * repeated .Ydb.Topic.Consumer add_consumers = 11 [(.Ydb.size) = { ... }
       */
      public java.util.List 
           getAddConsumersBuilderList() {
        return getAddConsumersFieldBuilder().getBuilderList();
      }
      private com.google.protobuf.RepeatedFieldBuilderV3<
          tech.ydb.proto.topic.YdbTopic.Consumer, tech.ydb.proto.topic.YdbTopic.Consumer.Builder, tech.ydb.proto.topic.YdbTopic.ConsumerOrBuilder> 
          getAddConsumersFieldBuilder() {
        if (addConsumersBuilder_ == null) {
          addConsumersBuilder_ = new com.google.protobuf.RepeatedFieldBuilderV3<
              tech.ydb.proto.topic.YdbTopic.Consumer, tech.ydb.proto.topic.YdbTopic.Consumer.Builder, tech.ydb.proto.topic.YdbTopic.ConsumerOrBuilder>(
                  addConsumers_,
                  ((bitField0_ & 0x00000200) != 0),
                  getParentForChildren(),
                  isClean());
          addConsumers_ = null;
        }
        return addConsumersBuilder_;
      }

      private com.google.protobuf.LazyStringArrayList dropConsumers_ =
          com.google.protobuf.LazyStringArrayList.emptyList();
      private void ensureDropConsumersIsMutable() {
        if (!dropConsumers_.isModifiable()) {
          dropConsumers_ = new com.google.protobuf.LazyStringArrayList(dropConsumers_);
        }
        bitField0_ |= 0x00000400;
      }
      /**
       * 
       * Remove consumers (by their names)
       * 
       *
       * repeated string drop_consumers = 12 [(.Ydb.size) = { ... }
       * @return A list containing the dropConsumers.
       */
      public com.google.protobuf.ProtocolStringList
          getDropConsumersList() {
        dropConsumers_.makeImmutable();
        return dropConsumers_;
      }
      /**
       * 
       * Remove consumers (by their names)
       * 
       *
       * repeated string drop_consumers = 12 [(.Ydb.size) = { ... }
       * @return The count of dropConsumers.
       */
      public int getDropConsumersCount() {
        return dropConsumers_.size();
      }
      /**
       * 
       * Remove consumers (by their names)
       * 
       *
       * repeated string drop_consumers = 12 [(.Ydb.size) = { ... }
       * @param index The index of the element to return.
       * @return The dropConsumers at the given index.
       */
      public java.lang.String getDropConsumers(int index) {
        return dropConsumers_.get(index);
      }
      /**
       * 
       * Remove consumers (by their names)
       * 
       *
       * repeated string drop_consumers = 12 [(.Ydb.size) = { ... }
       * @param index The index of the value to return.
       * @return The bytes of the dropConsumers at the given index.
       */
      public com.google.protobuf.ByteString
          getDropConsumersBytes(int index) {
        return dropConsumers_.getByteString(index);
      }
      /**
       * 
       * Remove consumers (by their names)
       * 
       *
       * repeated string drop_consumers = 12 [(.Ydb.size) = { ... }
       * @param index The index to set the value at.
       * @param value The dropConsumers to set.
       * @return This builder for chaining.
       */
      public Builder setDropConsumers(
          int index, java.lang.String value) {
        if (value == null) { throw new NullPointerException(); }
        ensureDropConsumersIsMutable();
        dropConsumers_.set(index, value);
        bitField0_ |= 0x00000400;
        onChanged();
        return this;
      }
      /**
       * 
       * Remove consumers (by their names)
       * 
       *
       * repeated string drop_consumers = 12 [(.Ydb.size) = { ... }
       * @param value The dropConsumers to add.
       * @return This builder for chaining.
       */
      public Builder addDropConsumers(
          java.lang.String value) {
        if (value == null) { throw new NullPointerException(); }
        ensureDropConsumersIsMutable();
        dropConsumers_.add(value);
        bitField0_ |= 0x00000400;
        onChanged();
        return this;
      }
      /**
       * 
       * Remove consumers (by their names)
       * 
       *
       * repeated string drop_consumers = 12 [(.Ydb.size) = { ... }
       * @param values The dropConsumers to add.
       * @return This builder for chaining.
       */
      public Builder addAllDropConsumers(
          java.lang.Iterable values) {
        ensureDropConsumersIsMutable();
        com.google.protobuf.AbstractMessageLite.Builder.addAll(
            values, dropConsumers_);
        bitField0_ |= 0x00000400;
        onChanged();
        return this;
      }
      /**
       * 
       * Remove consumers (by their names)
       * 
       *
       * repeated string drop_consumers = 12 [(.Ydb.size) = { ... }
       * @return This builder for chaining.
       */
      public Builder clearDropConsumers() {
        dropConsumers_ =
          com.google.protobuf.LazyStringArrayList.emptyList();
        bitField0_ = (bitField0_ & ~0x00000400);;
        onChanged();
        return this;
      }
      /**
       * 
       * Remove consumers (by their names)
       * 
       *
       * repeated string drop_consumers = 12 [(.Ydb.size) = { ... }
       * @param value The bytes of the dropConsumers to add.
       * @return This builder for chaining.
       */
      public Builder addDropConsumersBytes(
          com.google.protobuf.ByteString value) {
        if (value == null) { throw new NullPointerException(); }
        checkByteStringIsUtf8(value);
        ensureDropConsumersIsMutable();
        dropConsumers_.add(value);
        bitField0_ |= 0x00000400;
        onChanged();
        return this;
      }

      private java.util.List alterConsumers_ =
        java.util.Collections.emptyList();
      private void ensureAlterConsumersIsMutable() {
        if (!((bitField0_ & 0x00000800) != 0)) {
          alterConsumers_ = new java.util.ArrayList(alterConsumers_);
          bitField0_ |= 0x00000800;
         }
      }

      private com.google.protobuf.RepeatedFieldBuilderV3<
          tech.ydb.proto.topic.YdbTopic.AlterConsumer, tech.ydb.proto.topic.YdbTopic.AlterConsumer.Builder, tech.ydb.proto.topic.YdbTopic.AlterConsumerOrBuilder> alterConsumersBuilder_;

      /**
       * 
       * Alter consumers
       * 
       *
       * repeated .Ydb.Topic.AlterConsumer alter_consumers = 13 [(.Ydb.size) = { ... }
       */
      public java.util.List getAlterConsumersList() {
        if (alterConsumersBuilder_ == null) {
          return java.util.Collections.unmodifiableList(alterConsumers_);
        } else {
          return alterConsumersBuilder_.getMessageList();
        }
      }
      /**
       * 
       * Alter consumers
       * 
       *
       * repeated .Ydb.Topic.AlterConsumer alter_consumers = 13 [(.Ydb.size) = { ... }
       */
      public int getAlterConsumersCount() {
        if (alterConsumersBuilder_ == null) {
          return alterConsumers_.size();
        } else {
          return alterConsumersBuilder_.getCount();
        }
      }
      /**
       * 
       * Alter consumers
       * 
       *
       * repeated .Ydb.Topic.AlterConsumer alter_consumers = 13 [(.Ydb.size) = { ... }
       */
      public tech.ydb.proto.topic.YdbTopic.AlterConsumer getAlterConsumers(int index) {
        if (alterConsumersBuilder_ == null) {
          return alterConsumers_.get(index);
        } else {
          return alterConsumersBuilder_.getMessage(index);
        }
      }
      /**
       * 
       * Alter consumers
       * 
       *
       * repeated .Ydb.Topic.AlterConsumer alter_consumers = 13 [(.Ydb.size) = { ... }
       */
      public Builder setAlterConsumers(
          int index, tech.ydb.proto.topic.YdbTopic.AlterConsumer value) {
        if (alterConsumersBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          ensureAlterConsumersIsMutable();
          alterConsumers_.set(index, value);
          onChanged();
        } else {
          alterConsumersBuilder_.setMessage(index, value);
        }
        return this;
      }
      /**
       * 
       * Alter consumers
       * 
       *
       * repeated .Ydb.Topic.AlterConsumer alter_consumers = 13 [(.Ydb.size) = { ... }
       */
      public Builder setAlterConsumers(
          int index, tech.ydb.proto.topic.YdbTopic.AlterConsumer.Builder builderForValue) {
        if (alterConsumersBuilder_ == null) {
          ensureAlterConsumersIsMutable();
          alterConsumers_.set(index, builderForValue.build());
          onChanged();
        } else {
          alterConsumersBuilder_.setMessage(index, builderForValue.build());
        }
        return this;
      }
      /**
       * 
       * Alter consumers
       * 
       *
       * repeated .Ydb.Topic.AlterConsumer alter_consumers = 13 [(.Ydb.size) = { ... }
       */
      public Builder addAlterConsumers(tech.ydb.proto.topic.YdbTopic.AlterConsumer value) {
        if (alterConsumersBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          ensureAlterConsumersIsMutable();
          alterConsumers_.add(value);
          onChanged();
        } else {
          alterConsumersBuilder_.addMessage(value);
        }
        return this;
      }
      /**
       * 
       * Alter consumers
       * 
       *
       * repeated .Ydb.Topic.AlterConsumer alter_consumers = 13 [(.Ydb.size) = { ... }
       */
      public Builder addAlterConsumers(
          int index, tech.ydb.proto.topic.YdbTopic.AlterConsumer value) {
        if (alterConsumersBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          ensureAlterConsumersIsMutable();
          alterConsumers_.add(index, value);
          onChanged();
        } else {
          alterConsumersBuilder_.addMessage(index, value);
        }
        return this;
      }
      /**
       * 
       * Alter consumers
       * 
       *
       * repeated .Ydb.Topic.AlterConsumer alter_consumers = 13 [(.Ydb.size) = { ... }
       */
      public Builder addAlterConsumers(
          tech.ydb.proto.topic.YdbTopic.AlterConsumer.Builder builderForValue) {
        if (alterConsumersBuilder_ == null) {
          ensureAlterConsumersIsMutable();
          alterConsumers_.add(builderForValue.build());
          onChanged();
        } else {
          alterConsumersBuilder_.addMessage(builderForValue.build());
        }
        return this;
      }
      /**
       * 
       * Alter consumers
       * 
       *
       * repeated .Ydb.Topic.AlterConsumer alter_consumers = 13 [(.Ydb.size) = { ... }
       */
      public Builder addAlterConsumers(
          int index, tech.ydb.proto.topic.YdbTopic.AlterConsumer.Builder builderForValue) {
        if (alterConsumersBuilder_ == null) {
          ensureAlterConsumersIsMutable();
          alterConsumers_.add(index, builderForValue.build());
          onChanged();
        } else {
          alterConsumersBuilder_.addMessage(index, builderForValue.build());
        }
        return this;
      }
      /**
       * 
       * Alter consumers
       * 
       *
       * repeated .Ydb.Topic.AlterConsumer alter_consumers = 13 [(.Ydb.size) = { ... }
       */
      public Builder addAllAlterConsumers(
          java.lang.Iterable values) {
        if (alterConsumersBuilder_ == null) {
          ensureAlterConsumersIsMutable();
          com.google.protobuf.AbstractMessageLite.Builder.addAll(
              values, alterConsumers_);
          onChanged();
        } else {
          alterConsumersBuilder_.addAllMessages(values);
        }
        return this;
      }
      /**
       * 
       * Alter consumers
       * 
       *
       * repeated .Ydb.Topic.AlterConsumer alter_consumers = 13 [(.Ydb.size) = { ... }
       */
      public Builder clearAlterConsumers() {
        if (alterConsumersBuilder_ == null) {
          alterConsumers_ = java.util.Collections.emptyList();
          bitField0_ = (bitField0_ & ~0x00000800);
          onChanged();
        } else {
          alterConsumersBuilder_.clear();
        }
        return this;
      }
      /**
       * 
       * Alter consumers
       * 
       *
       * repeated .Ydb.Topic.AlterConsumer alter_consumers = 13 [(.Ydb.size) = { ... }
       */
      public Builder removeAlterConsumers(int index) {
        if (alterConsumersBuilder_ == null) {
          ensureAlterConsumersIsMutable();
          alterConsumers_.remove(index);
          onChanged();
        } else {
          alterConsumersBuilder_.remove(index);
        }
        return this;
      }
      /**
       * 
       * Alter consumers
       * 
       *
       * repeated .Ydb.Topic.AlterConsumer alter_consumers = 13 [(.Ydb.size) = { ... }
       */
      public tech.ydb.proto.topic.YdbTopic.AlterConsumer.Builder getAlterConsumersBuilder(
          int index) {
        return getAlterConsumersFieldBuilder().getBuilder(index);
      }
      /**
       * 
       * Alter consumers
       * 
       *
       * repeated .Ydb.Topic.AlterConsumer alter_consumers = 13 [(.Ydb.size) = { ... }
       */
      public tech.ydb.proto.topic.YdbTopic.AlterConsumerOrBuilder getAlterConsumersOrBuilder(
          int index) {
        if (alterConsumersBuilder_ == null) {
          return alterConsumers_.get(index);  } else {
          return alterConsumersBuilder_.getMessageOrBuilder(index);
        }
      }
      /**
       * 
       * Alter consumers
       * 
       *
       * repeated .Ydb.Topic.AlterConsumer alter_consumers = 13 [(.Ydb.size) = { ... }
       */
      public java.util.List 
           getAlterConsumersOrBuilderList() {
        if (alterConsumersBuilder_ != null) {
          return alterConsumersBuilder_.getMessageOrBuilderList();
        } else {
          return java.util.Collections.unmodifiableList(alterConsumers_);
        }
      }
      /**
       * 
       * Alter consumers
       * 
       *
       * repeated .Ydb.Topic.AlterConsumer alter_consumers = 13 [(.Ydb.size) = { ... }
       */
      public tech.ydb.proto.topic.YdbTopic.AlterConsumer.Builder addAlterConsumersBuilder() {
        return getAlterConsumersFieldBuilder().addBuilder(
            tech.ydb.proto.topic.YdbTopic.AlterConsumer.getDefaultInstance());
      }
      /**
       * 
       * Alter consumers
       * 
       *
       * repeated .Ydb.Topic.AlterConsumer alter_consumers = 13 [(.Ydb.size) = { ... }
       */
      public tech.ydb.proto.topic.YdbTopic.AlterConsumer.Builder addAlterConsumersBuilder(
          int index) {
        return getAlterConsumersFieldBuilder().addBuilder(
            index, tech.ydb.proto.topic.YdbTopic.AlterConsumer.getDefaultInstance());
      }
      /**
       * 
       * Alter consumers
       * 
       *
       * repeated .Ydb.Topic.AlterConsumer alter_consumers = 13 [(.Ydb.size) = { ... }
       */
      public java.util.List 
           getAlterConsumersBuilderList() {
        return getAlterConsumersFieldBuilder().getBuilderList();
      }
      private com.google.protobuf.RepeatedFieldBuilderV3<
          tech.ydb.proto.topic.YdbTopic.AlterConsumer, tech.ydb.proto.topic.YdbTopic.AlterConsumer.Builder, tech.ydb.proto.topic.YdbTopic.AlterConsumerOrBuilder> 
          getAlterConsumersFieldBuilder() {
        if (alterConsumersBuilder_ == null) {
          alterConsumersBuilder_ = new com.google.protobuf.RepeatedFieldBuilderV3<
              tech.ydb.proto.topic.YdbTopic.AlterConsumer, tech.ydb.proto.topic.YdbTopic.AlterConsumer.Builder, tech.ydb.proto.topic.YdbTopic.AlterConsumerOrBuilder>(
                  alterConsumers_,
                  ((bitField0_ & 0x00000800) != 0),
                  getParentForChildren(),
                  isClean());
          alterConsumers_ = null;
        }
        return alterConsumersBuilder_;
      }

      private int setMeteringMode_ = 0;
      /**
       * 
       * Set metering mode for topic in serverless database.
       * 
       *
       * .Ydb.Topic.MeteringMode set_metering_mode = 14;
       * @return The enum numeric value on the wire for setMeteringMode.
       */
      @java.lang.Override public int getSetMeteringModeValue() {
        return setMeteringMode_;
      }
      /**
       * 
       * Set metering mode for topic in serverless database.
       * 
       *
       * .Ydb.Topic.MeteringMode set_metering_mode = 14;
       * @param value The enum numeric value on the wire for setMeteringMode to set.
       * @return This builder for chaining.
       */
      public Builder setSetMeteringModeValue(int value) {
        setMeteringMode_ = value;
        bitField0_ |= 0x00001000;
        onChanged();
        return this;
      }
      /**
       * 
       * Set metering mode for topic in serverless database.
       * 
       *
       * .Ydb.Topic.MeteringMode set_metering_mode = 14;
       * @return The setMeteringMode.
       */
      @java.lang.Override
      public tech.ydb.proto.topic.YdbTopic.MeteringMode getSetMeteringMode() {
        tech.ydb.proto.topic.YdbTopic.MeteringMode result = tech.ydb.proto.topic.YdbTopic.MeteringMode.forNumber(setMeteringMode_);
        return result == null ? tech.ydb.proto.topic.YdbTopic.MeteringMode.UNRECOGNIZED : result;
      }
      /**
       * 
       * Set metering mode for topic in serverless database.
       * 
       *
       * .Ydb.Topic.MeteringMode set_metering_mode = 14;
       * @param value The setMeteringMode to set.
       * @return This builder for chaining.
       */
      public Builder setSetMeteringMode(tech.ydb.proto.topic.YdbTopic.MeteringMode value) {
        if (value == null) {
          throw new NullPointerException();
        }
        bitField0_ |= 0x00001000;
        setMeteringMode_ = value.getNumber();
        onChanged();
        return this;
      }
      /**
       * 
       * Set metering mode for topic in serverless database.
       * 
       *
       * .Ydb.Topic.MeteringMode set_metering_mode = 14;
       * @return This builder for chaining.
       */
      public Builder clearSetMeteringMode() {
        bitField0_ = (bitField0_ & ~0x00001000);
        setMeteringMode_ = 0;
        onChanged();
        return this;
      }
      @java.lang.Override
      public final Builder setUnknownFields(
          final com.google.protobuf.UnknownFieldSet unknownFields) {
        return super.setUnknownFields(unknownFields);
      }

      @java.lang.Override
      public final Builder mergeUnknownFields(
          final com.google.protobuf.UnknownFieldSet unknownFields) {
        return super.mergeUnknownFields(unknownFields);
      }


      // @@protoc_insertion_point(builder_scope:Ydb.Topic.AlterTopicRequest)
    }

    // @@protoc_insertion_point(class_scope:Ydb.Topic.AlterTopicRequest)
    private static final tech.ydb.proto.topic.YdbTopic.AlterTopicRequest DEFAULT_INSTANCE;
    static {
      DEFAULT_INSTANCE = new tech.ydb.proto.topic.YdbTopic.AlterTopicRequest();
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    public static tech.ydb.proto.topic.YdbTopic.AlterTopicRequest getDefaultInstance() {
      return DEFAULT_INSTANCE;
    }

    private static final com.google.protobuf.Parser
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      public AlterTopicRequest parsePartialFrom(
          com.google.protobuf.CodedInputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        Builder builder = newBuilder();
        try {
          builder.mergeFrom(input, extensionRegistry);
        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
          throw e.setUnfinishedMessage(builder.buildPartial());
        } catch (com.google.protobuf.UninitializedMessageException e) {
          throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
        } catch (java.io.IOException e) {
          throw new com.google.protobuf.InvalidProtocolBufferException(e)
              .setUnfinishedMessage(builder.buildPartial());
        }
        return builder.buildPartial();
      }
    };

    public static com.google.protobuf.Parser parser() {
      return PARSER;
    }

    @java.lang.Override
    public com.google.protobuf.Parser getParserForType() {
      return PARSER;
    }

    @java.lang.Override
    public tech.ydb.proto.topic.YdbTopic.AlterTopicRequest getDefaultInstanceForType() {
      return DEFAULT_INSTANCE;
    }

  }

  public interface AlterTopicResponseOrBuilder extends
      // @@protoc_insertion_point(interface_extends:Ydb.Topic.AlterTopicResponse)
      com.google.protobuf.MessageOrBuilder {

    /**
     * 
     * Result of request will be inside operation.
     * 
     *
     * .Ydb.Operations.Operation operation = 1;
     * @return Whether the operation field is set.
     */
    boolean hasOperation();
    /**
     * 
     * Result of request will be inside operation.
     * 
     *
     * .Ydb.Operations.Operation operation = 1;
     * @return The operation.
     */
    tech.ydb.proto.OperationProtos.Operation getOperation();
    /**
     * 
     * Result of request will be inside operation.
     * 
     *
     * .Ydb.Operations.Operation operation = 1;
     */
    tech.ydb.proto.OperationProtos.OperationOrBuilder getOperationOrBuilder();
  }
  /**
   * 
   * Update topic response sent from server to client.
   * 
   *
   * Protobuf type {@code Ydb.Topic.AlterTopicResponse}
   */
  public static final class AlterTopicResponse extends
      com.google.protobuf.GeneratedMessageV3 implements
      // @@protoc_insertion_point(message_implements:Ydb.Topic.AlterTopicResponse)
      AlterTopicResponseOrBuilder {
  private static final long serialVersionUID = 0L;
    // Use AlterTopicResponse.newBuilder() to construct.
    private AlterTopicResponse(com.google.protobuf.GeneratedMessageV3.Builder builder) {
      super(builder);
    }
    private AlterTopicResponse() {
    }

    @java.lang.Override
    @SuppressWarnings({"unused"})
    protected java.lang.Object newInstance(
        UnusedPrivateParameter unused) {
      return new AlterTopicResponse();
    }

    public static final com.google.protobuf.Descriptors.Descriptor
        getDescriptor() {
      return tech.ydb.proto.topic.YdbTopic.internal_static_Ydb_Topic_AlterTopicResponse_descriptor;
    }

    @java.lang.Override
    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
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    private int bitField0_;
    public static final int OPERATION_FIELD_NUMBER = 1;
    private tech.ydb.proto.OperationProtos.Operation operation_;
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     * 
     * Result of request will be inside operation.
     * 
     *
     * .Ydb.Operations.Operation operation = 1;
     * @return Whether the operation field is set.
     */
    @java.lang.Override
    public boolean hasOperation() {
      return ((bitField0_ & 0x00000001) != 0);
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     * 
     * Result of request will be inside operation.
     * 
     *
     * .Ydb.Operations.Operation operation = 1;
     * @return The operation.
     */
    @java.lang.Override
    public tech.ydb.proto.OperationProtos.Operation getOperation() {
      return operation_ == null ? tech.ydb.proto.OperationProtos.Operation.getDefaultInstance() : operation_;
    }
    /**
     * 
     * Result of request will be inside operation.
     * 
     *
     * .Ydb.Operations.Operation operation = 1;
     */
    @java.lang.Override
    public tech.ydb.proto.OperationProtos.OperationOrBuilder getOperationOrBuilder() {
      return operation_ == null ? tech.ydb.proto.OperationProtos.Operation.getDefaultInstance() : operation_;
    }

    private byte memoizedIsInitialized = -1;
    @java.lang.Override
    public final boolean isInitialized() {
      byte isInitialized = memoizedIsInitialized;
      if (isInitialized == 1) return true;
      if (isInitialized == 0) return false;

      memoizedIsInitialized = 1;
      return true;
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    @java.lang.Override
    public void writeTo(com.google.protobuf.CodedOutputStream output)
                        throws java.io.IOException {
      if (((bitField0_ & 0x00000001) != 0)) {
        output.writeMessage(1, getOperation());
      }
      getUnknownFields().writeTo(output);
    }

    @java.lang.Override
    public int getSerializedSize() {
      int size = memoizedSize;
      if (size != -1) return size;

      size = 0;
      if (((bitField0_ & 0x00000001) != 0)) {
        size += com.google.protobuf.CodedOutputStream
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      size += getUnknownFields().getSerializedSize();
      memoizedSize = size;
      return size;
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    @java.lang.Override
    public boolean equals(final java.lang.Object obj) {
      if (obj == this) {
       return true;
      }
      if (!(obj instanceof tech.ydb.proto.topic.YdbTopic.AlterTopicResponse)) {
        return super.equals(obj);
      }
      tech.ydb.proto.topic.YdbTopic.AlterTopicResponse other = (tech.ydb.proto.topic.YdbTopic.AlterTopicResponse) obj;

      if (hasOperation() != other.hasOperation()) return false;
      if (hasOperation()) {
        if (!getOperation()
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      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
      return true;
    }

    @java.lang.Override
    public int hashCode() {
      if (memoizedHashCode != 0) {
        return memoizedHashCode;
      }
      int hash = 41;
      hash = (19 * hash) + getDescriptor().hashCode();
      if (hasOperation()) {
        hash = (37 * hash) + OPERATION_FIELD_NUMBER;
        hash = (53 * hash) + getOperation().hashCode();
      }
      hash = (29 * hash) + getUnknownFields().hashCode();
      memoizedHashCode = hash;
      return hash;
    }

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        java.nio.ByteBuffer data)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data);
    }
    public static tech.ydb.proto.topic.YdbTopic.AlterTopicResponse parseFrom(
        java.nio.ByteBuffer data,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data, extensionRegistry);
    }
    public static tech.ydb.proto.topic.YdbTopic.AlterTopicResponse parseFrom(
        com.google.protobuf.ByteString data)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data);
    }
    public static tech.ydb.proto.topic.YdbTopic.AlterTopicResponse parseFrom(
        com.google.protobuf.ByteString data,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data, extensionRegistry);
    }
    public static tech.ydb.proto.topic.YdbTopic.AlterTopicResponse parseFrom(byte[] data)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data);
    }
    public static tech.ydb.proto.topic.YdbTopic.AlterTopicResponse parseFrom(
        byte[] data,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data, extensionRegistry);
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    public static tech.ydb.proto.topic.YdbTopic.AlterTopicResponse parseFrom(java.io.InputStream input)
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        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws java.io.IOException {
      return com.google.protobuf.GeneratedMessageV3
          .parseWithIOException(PARSER, input, extensionRegistry);
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    public static tech.ydb.proto.topic.YdbTopic.AlterTopicResponse parseDelimitedFrom(java.io.InputStream input)
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      return com.google.protobuf.GeneratedMessageV3
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    public static tech.ydb.proto.topic.YdbTopic.AlterTopicResponse parseFrom(
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        throws java.io.IOException {
      return com.google.protobuf.GeneratedMessageV3
          .parseWithIOException(PARSER, input);
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    public static tech.ydb.proto.topic.YdbTopic.AlterTopicResponse parseFrom(
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        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws java.io.IOException {
      return com.google.protobuf.GeneratedMessageV3
          .parseWithIOException(PARSER, input, extensionRegistry);
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    @java.lang.Override
    public Builder newBuilderForType() { return newBuilder(); }
    public static Builder newBuilder() {
      return DEFAULT_INSTANCE.toBuilder();
    }
    public static Builder newBuilder(tech.ydb.proto.topic.YdbTopic.AlterTopicResponse prototype) {
      return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
    }
    @java.lang.Override
    public Builder toBuilder() {
      return this == DEFAULT_INSTANCE
          ? new Builder() : new Builder().mergeFrom(this);
    }

    @java.lang.Override
    protected Builder newBuilderForType(
        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
      Builder builder = new Builder(parent);
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    }
    /**
     * 
     * Update topic response sent from server to client.
     * 
     *
     * Protobuf type {@code Ydb.Topic.AlterTopicResponse}
     */
    public static final class Builder extends
        com.google.protobuf.GeneratedMessageV3.Builder implements
        // @@protoc_insertion_point(builder_implements:Ydb.Topic.AlterTopicResponse)
        tech.ydb.proto.topic.YdbTopic.AlterTopicResponseOrBuilder {
      public static final com.google.protobuf.Descriptors.Descriptor
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        maybeForceBuilderInitialization();
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      @java.lang.Override
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        return result;
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    /**
     * 
     * Drop topic request sent from client to server.
     * 
     *
     * Protobuf type {@code Ydb.Topic.DropTopicRequest}
     */
    public static final class Builder extends
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        // @@protoc_insertion_point(builder_implements:Ydb.Topic.DropTopicRequest)
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          onChanged();
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       * .Ydb.Operations.OperationParams operation_params = 1;
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        onChanged();
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       * .Ydb.Operations.OperationParams operation_params = 1;
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       * .Ydb.Operations.OperationParams operation_params = 1;
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       * 
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       * 
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       * 
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       * string path = 2;
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        onChanged();
        return this;
      }
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       * 
       * Topic path.
       * 
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      /**
       * 
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    // @@protoc_insertion_point(class_scope:Ydb.Topic.DropTopicRequest)
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          throw new com.google.protobuf.InvalidProtocolBufferException(e)
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        return builder.buildPartial();
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    @java.lang.Override
    public tech.ydb.proto.topic.YdbTopic.DropTopicRequest getDefaultInstanceForType() {
      return DEFAULT_INSTANCE;
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  }

  public interface DropTopicResponseOrBuilder extends
      // @@protoc_insertion_point(interface_extends:Ydb.Topic.DropTopicResponse)
      com.google.protobuf.MessageOrBuilder {

    /**
     * 
     * Result of request will be inside operation.
     * 
     *
     * .Ydb.Operations.Operation operation = 1;
     * @return Whether the operation field is set.
     */
    boolean hasOperation();
    /**
     * 
     * Result of request will be inside operation.
     * 
     *
     * .Ydb.Operations.Operation operation = 1;
     * @return The operation.
     */
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    /**
     * 
     * Result of request will be inside operation.
     * 
     *
     * .Ydb.Operations.Operation operation = 1;
     */
    tech.ydb.proto.OperationProtos.OperationOrBuilder getOperationOrBuilder();
  }
  /**
   * 
   * Drop topic response sent from server to client.
   * If topic not exists then response status will be "SCHEME_ERROR".
   * 
   *
   * Protobuf type {@code Ydb.Topic.DropTopicResponse}
   */
  public static final class DropTopicResponse extends
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      // @@protoc_insertion_point(message_implements:Ydb.Topic.DropTopicResponse)
      DropTopicResponseOrBuilder {
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    private int bitField0_;
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     * 
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      "tos/ydb_operation.proto\032\027protos/ydb_sche" +
      "me.proto\032\035protos/ydb_status_codes.proto\032" +
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      "annotations/sensitive.proto\032#protos/anno" +
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  // @@protoc_insertion_point(outer_class_scope)
}