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// Generated by the Scala Plugin for the Protocol Buffer Compiler.
// Do not edit!
//
// Protofile syntax: PROTO3

package com.google.api.expr.v1alpha1

/** Represents a declaration of a named value or function.
  *
  * A declaration is part of the contract between the expression, the agent
  * evaluating that expression, and the caller requesting evaluation.
  *
  * @param name
  *   The fully qualified name of the declaration.
  *  
  *   Declarations are organized in containers and this represents the full path
  *   to the declaration in its container, as in `google.api.expr.Decl`.
  *  
  *   Declarations used as [FunctionDecl.Overload][google.api.expr.v1alpha1.Decl.FunctionDecl.Overload] parameters may or may not
  *   have a name depending on whether the overload is function declaration or a
  *   function definition containing a result [Expr][google.api.expr.v1alpha1.Expr].
  */
@SerialVersionUID(0L)
final case class Decl(
    name: _root_.scala.Predef.String = "",
    declKind: com.google.api.expr.v1alpha1.Decl.DeclKind = com.google.api.expr.v1alpha1.Decl.DeclKind.Empty,
    unknownFields: _root_.scalapb.UnknownFieldSet = _root_.scalapb.UnknownFieldSet.empty
    ) extends scalapb.GeneratedMessage with scalapb.lenses.Updatable[Decl] {
    @transient
    private[this] var __serializedSizeMemoized: _root_.scala.Int = 0
    private[this] def __computeSerializedSize(): _root_.scala.Int = {
      var __size = 0
      
      {
        val __value = name
        if (!__value.isEmpty) {
          __size += _root_.com.google.protobuf.CodedOutputStream.computeStringSize(1, __value)
        }
      };
      if (declKind.ident.isDefined) {
        val __value = declKind.ident.get
        __size += 1 + _root_.com.google.protobuf.CodedOutputStream.computeUInt32SizeNoTag(__value.serializedSize) + __value.serializedSize
      };
      if (declKind.function.isDefined) {
        val __value = declKind.function.get
        __size += 1 + _root_.com.google.protobuf.CodedOutputStream.computeUInt32SizeNoTag(__value.serializedSize) + __value.serializedSize
      };
      __size += unknownFields.serializedSize
      __size
    }
    override def serializedSize: _root_.scala.Int = {
      var __size = __serializedSizeMemoized
      if (__size == 0) {
        __size = __computeSerializedSize() + 1
        __serializedSizeMemoized = __size
      }
      __size - 1
      
    }
    def writeTo(`_output__`: _root_.com.google.protobuf.CodedOutputStream): _root_.scala.Unit = {
      {
        val __v = name
        if (!__v.isEmpty) {
          _output__.writeString(1, __v)
        }
      };
      declKind.ident.foreach { __v =>
        val __m = __v
        _output__.writeTag(2, 2)
        _output__.writeUInt32NoTag(__m.serializedSize)
        __m.writeTo(_output__)
      };
      declKind.function.foreach { __v =>
        val __m = __v
        _output__.writeTag(3, 2)
        _output__.writeUInt32NoTag(__m.serializedSize)
        __m.writeTo(_output__)
      };
      unknownFields.writeTo(_output__)
    }
    def withName(__v: _root_.scala.Predef.String): Decl = copy(name = __v)
    def getIdent: com.google.api.expr.v1alpha1.Decl.IdentDecl = declKind.ident.getOrElse(com.google.api.expr.v1alpha1.Decl.IdentDecl.defaultInstance)
    def withIdent(__v: com.google.api.expr.v1alpha1.Decl.IdentDecl): Decl = copy(declKind = com.google.api.expr.v1alpha1.Decl.DeclKind.Ident(__v))
    def getFunction: com.google.api.expr.v1alpha1.Decl.FunctionDecl = declKind.function.getOrElse(com.google.api.expr.v1alpha1.Decl.FunctionDecl.defaultInstance)
    def withFunction(__v: com.google.api.expr.v1alpha1.Decl.FunctionDecl): Decl = copy(declKind = com.google.api.expr.v1alpha1.Decl.DeclKind.Function(__v))
    def clearDeclKind: Decl = copy(declKind = com.google.api.expr.v1alpha1.Decl.DeclKind.Empty)
    def withDeclKind(__v: com.google.api.expr.v1alpha1.Decl.DeclKind): Decl = copy(declKind = __v)
    def withUnknownFields(__v: _root_.scalapb.UnknownFieldSet) = copy(unknownFields = __v)
    def discardUnknownFields = copy(unknownFields = _root_.scalapb.UnknownFieldSet.empty)
    def getFieldByNumber(__fieldNumber: _root_.scala.Int): _root_.scala.Any = {
      (__fieldNumber: @_root_.scala.unchecked) match {
        case 1 => {
          val __t = name
          if (__t != "") __t else null
        }
        case 2 => declKind.ident.orNull
        case 3 => declKind.function.orNull
      }
    }
    def getField(__field: _root_.scalapb.descriptors.FieldDescriptor): _root_.scalapb.descriptors.PValue = {
      _root_.scala.Predef.require(__field.containingMessage eq companion.scalaDescriptor)
      (__field.number: @_root_.scala.unchecked) match {
        case 1 => _root_.scalapb.descriptors.PString(name)
        case 2 => declKind.ident.map(_.toPMessage).getOrElse(_root_.scalapb.descriptors.PEmpty)
        case 3 => declKind.function.map(_.toPMessage).getOrElse(_root_.scalapb.descriptors.PEmpty)
      }
    }
    def toProtoString: _root_.scala.Predef.String = _root_.scalapb.TextFormat.printToUnicodeString(this)
    def companion: com.google.api.expr.v1alpha1.Decl.type = com.google.api.expr.v1alpha1.Decl
    // @@protoc_insertion_point(GeneratedMessage[google.api.expr.v1alpha1.Decl])
}

object Decl extends scalapb.GeneratedMessageCompanion[com.google.api.expr.v1alpha1.Decl] {
  implicit def messageCompanion: scalapb.GeneratedMessageCompanion[com.google.api.expr.v1alpha1.Decl] = this
  def parseFrom(`_input__`: _root_.com.google.protobuf.CodedInputStream): com.google.api.expr.v1alpha1.Decl = {
    var __name: _root_.scala.Predef.String = ""
    var __declKind: com.google.api.expr.v1alpha1.Decl.DeclKind = com.google.api.expr.v1alpha1.Decl.DeclKind.Empty
    var `_unknownFields__`: _root_.scalapb.UnknownFieldSet.Builder = null
    var _done__ = false
    while (!_done__) {
      val _tag__ = _input__.readTag()
      _tag__ match {
        case 0 => _done__ = true
        case 10 =>
          __name = _input__.readStringRequireUtf8()
        case 18 =>
          __declKind = com.google.api.expr.v1alpha1.Decl.DeclKind.Ident(__declKind.ident.fold(_root_.scalapb.LiteParser.readMessage[com.google.api.expr.v1alpha1.Decl.IdentDecl](_input__))(_root_.scalapb.LiteParser.readMessage(_input__, _)))
        case 26 =>
          __declKind = com.google.api.expr.v1alpha1.Decl.DeclKind.Function(__declKind.function.fold(_root_.scalapb.LiteParser.readMessage[com.google.api.expr.v1alpha1.Decl.FunctionDecl](_input__))(_root_.scalapb.LiteParser.readMessage(_input__, _)))
        case tag =>
          if (_unknownFields__ == null) {
            _unknownFields__ = new _root_.scalapb.UnknownFieldSet.Builder()
          }
          _unknownFields__.parseField(tag, _input__)
      }
    }
    com.google.api.expr.v1alpha1.Decl(
        name = __name,
        declKind = __declKind,
        unknownFields = if (_unknownFields__ == null) _root_.scalapb.UnknownFieldSet.empty else _unknownFields__.result()
    )
  }
  implicit def messageReads: _root_.scalapb.descriptors.Reads[com.google.api.expr.v1alpha1.Decl] = _root_.scalapb.descriptors.Reads{
    case _root_.scalapb.descriptors.PMessage(__fieldsMap) =>
      _root_.scala.Predef.require(__fieldsMap.keys.forall(_.containingMessage eq scalaDescriptor), "FieldDescriptor does not match message type.")
      com.google.api.expr.v1alpha1.Decl(
        name = __fieldsMap.get(scalaDescriptor.findFieldByNumber(1).get).map(_.as[_root_.scala.Predef.String]).getOrElse(""),
        declKind = __fieldsMap.get(scalaDescriptor.findFieldByNumber(2).get).flatMap(_.as[_root_.scala.Option[com.google.api.expr.v1alpha1.Decl.IdentDecl]]).map(com.google.api.expr.v1alpha1.Decl.DeclKind.Ident(_))
            .orElse[com.google.api.expr.v1alpha1.Decl.DeclKind](__fieldsMap.get(scalaDescriptor.findFieldByNumber(3).get).flatMap(_.as[_root_.scala.Option[com.google.api.expr.v1alpha1.Decl.FunctionDecl]]).map(com.google.api.expr.v1alpha1.Decl.DeclKind.Function(_)))
            .getOrElse(com.google.api.expr.v1alpha1.Decl.DeclKind.Empty)
      )
    case _ => throw new RuntimeException("Expected PMessage")
  }
  def javaDescriptor: _root_.com.google.protobuf.Descriptors.Descriptor = CheckedProto.javaDescriptor.getMessageTypes().get(2)
  def scalaDescriptor: _root_.scalapb.descriptors.Descriptor = CheckedProto.scalaDescriptor.messages(2)
  def messageCompanionForFieldNumber(__number: _root_.scala.Int): _root_.scalapb.GeneratedMessageCompanion[_] = {
    var __out: _root_.scalapb.GeneratedMessageCompanion[_] = null
    (__number: @_root_.scala.unchecked) match {
      case 2 => __out = com.google.api.expr.v1alpha1.Decl.IdentDecl
      case 3 => __out = com.google.api.expr.v1alpha1.Decl.FunctionDecl
    }
    __out
  }
  lazy val nestedMessagesCompanions: Seq[_root_.scalapb.GeneratedMessageCompanion[_ <: _root_.scalapb.GeneratedMessage]] =
    Seq[_root_.scalapb.GeneratedMessageCompanion[_ <: _root_.scalapb.GeneratedMessage]](
      _root_.com.google.api.expr.v1alpha1.Decl.IdentDecl,
      _root_.com.google.api.expr.v1alpha1.Decl.FunctionDecl
    )
  def enumCompanionForFieldNumber(__fieldNumber: _root_.scala.Int): _root_.scalapb.GeneratedEnumCompanion[_] = throw new MatchError(__fieldNumber)
  lazy val defaultInstance = com.google.api.expr.v1alpha1.Decl(
    name = "",
    declKind = com.google.api.expr.v1alpha1.Decl.DeclKind.Empty
  )
  sealed trait DeclKind extends _root_.scalapb.GeneratedOneof {
    def isEmpty: _root_.scala.Boolean = false
    def isDefined: _root_.scala.Boolean = true
    def isIdent: _root_.scala.Boolean = false
    def isFunction: _root_.scala.Boolean = false
    def ident: _root_.scala.Option[com.google.api.expr.v1alpha1.Decl.IdentDecl] = _root_.scala.None
    def function: _root_.scala.Option[com.google.api.expr.v1alpha1.Decl.FunctionDecl] = _root_.scala.None
  }
  object DeclKind {
    @SerialVersionUID(0L)
    case object Empty extends com.google.api.expr.v1alpha1.Decl.DeclKind {
      type ValueType = _root_.scala.Nothing
      override def isEmpty: _root_.scala.Boolean = true
      override def isDefined: _root_.scala.Boolean = false
      override def number: _root_.scala.Int = 0
      override def value: _root_.scala.Nothing = throw new java.util.NoSuchElementException("Empty.value")
    }
  
    @SerialVersionUID(0L)
    final case class Ident(value: com.google.api.expr.v1alpha1.Decl.IdentDecl) extends com.google.api.expr.v1alpha1.Decl.DeclKind {
      type ValueType = com.google.api.expr.v1alpha1.Decl.IdentDecl
      override def isIdent: _root_.scala.Boolean = true
      override def ident: _root_.scala.Option[com.google.api.expr.v1alpha1.Decl.IdentDecl] = Some(value)
      override def number: _root_.scala.Int = 2
    }
    @SerialVersionUID(0L)
    final case class Function(value: com.google.api.expr.v1alpha1.Decl.FunctionDecl) extends com.google.api.expr.v1alpha1.Decl.DeclKind {
      type ValueType = com.google.api.expr.v1alpha1.Decl.FunctionDecl
      override def isFunction: _root_.scala.Boolean = true
      override def function: _root_.scala.Option[com.google.api.expr.v1alpha1.Decl.FunctionDecl] = Some(value)
      override def number: _root_.scala.Int = 3
    }
  }
  /** Identifier declaration which specifies its type and optional `Expr` value.
    *
    * An identifier without a value is a declaration that must be provided at
    * evaluation time. An identifier with a value should resolve to a constant,
    * but may be used in conjunction with other identifiers bound at evaluation
    * time.
    *
    * @param type
    *   Required. The type of the identifier.
    * @param value
    *   The constant value of the identifier. If not specified, the identifier
    *   must be supplied at evaluation time.
    * @param doc
    *   Documentation string for the identifier.
    */
  @SerialVersionUID(0L)
  final case class IdentDecl(
      `type`: _root_.scala.Option[com.google.api.expr.v1alpha1.Type] = _root_.scala.None,
      value: _root_.scala.Option[com.google.api.expr.v1alpha1.Constant] = _root_.scala.None,
      doc: _root_.scala.Predef.String = "",
      unknownFields: _root_.scalapb.UnknownFieldSet = _root_.scalapb.UnknownFieldSet.empty
      ) extends scalapb.GeneratedMessage with scalapb.lenses.Updatable[IdentDecl] {
      @transient
      private[this] var __serializedSizeMemoized: _root_.scala.Int = 0
      private[this] def __computeSerializedSize(): _root_.scala.Int = {
        var __size = 0
        if (`type`.isDefined) {
          val __value = `type`.get
          __size += 1 + _root_.com.google.protobuf.CodedOutputStream.computeUInt32SizeNoTag(__value.serializedSize) + __value.serializedSize
        };
        if (value.isDefined) {
          val __value = value.get
          __size += 1 + _root_.com.google.protobuf.CodedOutputStream.computeUInt32SizeNoTag(__value.serializedSize) + __value.serializedSize
        };
        
        {
          val __value = doc
          if (!__value.isEmpty) {
            __size += _root_.com.google.protobuf.CodedOutputStream.computeStringSize(3, __value)
          }
        };
        __size += unknownFields.serializedSize
        __size
      }
      override def serializedSize: _root_.scala.Int = {
        var __size = __serializedSizeMemoized
        if (__size == 0) {
          __size = __computeSerializedSize() + 1
          __serializedSizeMemoized = __size
        }
        __size - 1
        
      }
      def writeTo(`_output__`: _root_.com.google.protobuf.CodedOutputStream): _root_.scala.Unit = {
        `type`.foreach { __v =>
          val __m = __v
          _output__.writeTag(1, 2)
          _output__.writeUInt32NoTag(__m.serializedSize)
          __m.writeTo(_output__)
        };
        value.foreach { __v =>
          val __m = __v
          _output__.writeTag(2, 2)
          _output__.writeUInt32NoTag(__m.serializedSize)
          __m.writeTo(_output__)
        };
        {
          val __v = doc
          if (!__v.isEmpty) {
            _output__.writeString(3, __v)
          }
        };
        unknownFields.writeTo(_output__)
      }
      def getType: com.google.api.expr.v1alpha1.Type = `type`.getOrElse(com.google.api.expr.v1alpha1.Type.defaultInstance)
      def clearType: IdentDecl = copy(`type` = _root_.scala.None)
      def withType(__v: com.google.api.expr.v1alpha1.Type): IdentDecl = copy(`type` = Option(__v))
      def getValue: com.google.api.expr.v1alpha1.Constant = value.getOrElse(com.google.api.expr.v1alpha1.Constant.defaultInstance)
      def clearValue: IdentDecl = copy(value = _root_.scala.None)
      def withValue(__v: com.google.api.expr.v1alpha1.Constant): IdentDecl = copy(value = Option(__v))
      def withDoc(__v: _root_.scala.Predef.String): IdentDecl = copy(doc = __v)
      def withUnknownFields(__v: _root_.scalapb.UnknownFieldSet) = copy(unknownFields = __v)
      def discardUnknownFields = copy(unknownFields = _root_.scalapb.UnknownFieldSet.empty)
      def getFieldByNumber(__fieldNumber: _root_.scala.Int): _root_.scala.Any = {
        (__fieldNumber: @_root_.scala.unchecked) match {
          case 1 => `type`.orNull
          case 2 => value.orNull
          case 3 => {
            val __t = doc
            if (__t != "") __t else null
          }
        }
      }
      def getField(__field: _root_.scalapb.descriptors.FieldDescriptor): _root_.scalapb.descriptors.PValue = {
        _root_.scala.Predef.require(__field.containingMessage eq companion.scalaDescriptor)
        (__field.number: @_root_.scala.unchecked) match {
          case 1 => `type`.map(_.toPMessage).getOrElse(_root_.scalapb.descriptors.PEmpty)
          case 2 => value.map(_.toPMessage).getOrElse(_root_.scalapb.descriptors.PEmpty)
          case 3 => _root_.scalapb.descriptors.PString(doc)
        }
      }
      def toProtoString: _root_.scala.Predef.String = _root_.scalapb.TextFormat.printToUnicodeString(this)
      def companion: com.google.api.expr.v1alpha1.Decl.IdentDecl.type = com.google.api.expr.v1alpha1.Decl.IdentDecl
      // @@protoc_insertion_point(GeneratedMessage[google.api.expr.v1alpha1.Decl.IdentDecl])
  }
  
  object IdentDecl extends scalapb.GeneratedMessageCompanion[com.google.api.expr.v1alpha1.Decl.IdentDecl] {
    implicit def messageCompanion: scalapb.GeneratedMessageCompanion[com.google.api.expr.v1alpha1.Decl.IdentDecl] = this
    def parseFrom(`_input__`: _root_.com.google.protobuf.CodedInputStream): com.google.api.expr.v1alpha1.Decl.IdentDecl = {
      var __type: _root_.scala.Option[com.google.api.expr.v1alpha1.Type] = _root_.scala.None
      var __value: _root_.scala.Option[com.google.api.expr.v1alpha1.Constant] = _root_.scala.None
      var __doc: _root_.scala.Predef.String = ""
      var `_unknownFields__`: _root_.scalapb.UnknownFieldSet.Builder = null
      var _done__ = false
      while (!_done__) {
        val _tag__ = _input__.readTag()
        _tag__ match {
          case 0 => _done__ = true
          case 10 =>
            __type = Option(__type.fold(_root_.scalapb.LiteParser.readMessage[com.google.api.expr.v1alpha1.Type](_input__))(_root_.scalapb.LiteParser.readMessage(_input__, _)))
          case 18 =>
            __value = Option(__value.fold(_root_.scalapb.LiteParser.readMessage[com.google.api.expr.v1alpha1.Constant](_input__))(_root_.scalapb.LiteParser.readMessage(_input__, _)))
          case 26 =>
            __doc = _input__.readStringRequireUtf8()
          case tag =>
            if (_unknownFields__ == null) {
              _unknownFields__ = new _root_.scalapb.UnknownFieldSet.Builder()
            }
            _unknownFields__.parseField(tag, _input__)
        }
      }
      com.google.api.expr.v1alpha1.Decl.IdentDecl(
          `type` = __type,
          value = __value,
          doc = __doc,
          unknownFields = if (_unknownFields__ == null) _root_.scalapb.UnknownFieldSet.empty else _unknownFields__.result()
      )
    }
    implicit def messageReads: _root_.scalapb.descriptors.Reads[com.google.api.expr.v1alpha1.Decl.IdentDecl] = _root_.scalapb.descriptors.Reads{
      case _root_.scalapb.descriptors.PMessage(__fieldsMap) =>
        _root_.scala.Predef.require(__fieldsMap.keys.forall(_.containingMessage eq scalaDescriptor), "FieldDescriptor does not match message type.")
        com.google.api.expr.v1alpha1.Decl.IdentDecl(
          `type` = __fieldsMap.get(scalaDescriptor.findFieldByNumber(1).get).flatMap(_.as[_root_.scala.Option[com.google.api.expr.v1alpha1.Type]]),
          value = __fieldsMap.get(scalaDescriptor.findFieldByNumber(2).get).flatMap(_.as[_root_.scala.Option[com.google.api.expr.v1alpha1.Constant]]),
          doc = __fieldsMap.get(scalaDescriptor.findFieldByNumber(3).get).map(_.as[_root_.scala.Predef.String]).getOrElse("")
        )
      case _ => throw new RuntimeException("Expected PMessage")
    }
    def javaDescriptor: _root_.com.google.protobuf.Descriptors.Descriptor = com.google.api.expr.v1alpha1.Decl.javaDescriptor.getNestedTypes().get(0)
    def scalaDescriptor: _root_.scalapb.descriptors.Descriptor = com.google.api.expr.v1alpha1.Decl.scalaDescriptor.nestedMessages(0)
    def messageCompanionForFieldNumber(__number: _root_.scala.Int): _root_.scalapb.GeneratedMessageCompanion[_] = {
      var __out: _root_.scalapb.GeneratedMessageCompanion[_] = null
      (__number: @_root_.scala.unchecked) match {
        case 1 => __out = com.google.api.expr.v1alpha1.Type
        case 2 => __out = com.google.api.expr.v1alpha1.Constant
      }
      __out
    }
    lazy val nestedMessagesCompanions: Seq[_root_.scalapb.GeneratedMessageCompanion[_ <: _root_.scalapb.GeneratedMessage]] = Seq.empty
    def enumCompanionForFieldNumber(__fieldNumber: _root_.scala.Int): _root_.scalapb.GeneratedEnumCompanion[_] = throw new MatchError(__fieldNumber)
    lazy val defaultInstance = com.google.api.expr.v1alpha1.Decl.IdentDecl(
      `type` = _root_.scala.None,
      value = _root_.scala.None,
      doc = ""
    )
    implicit class IdentDeclLens[UpperPB](_l: _root_.scalapb.lenses.Lens[UpperPB, com.google.api.expr.v1alpha1.Decl.IdentDecl]) extends _root_.scalapb.lenses.ObjectLens[UpperPB, com.google.api.expr.v1alpha1.Decl.IdentDecl](_l) {
      def `type`: _root_.scalapb.lenses.Lens[UpperPB, com.google.api.expr.v1alpha1.Type] = field(_.getType)((c_, f_) => c_.copy(`type` = Option(f_)))
      def optionalType: _root_.scalapb.lenses.Lens[UpperPB, _root_.scala.Option[com.google.api.expr.v1alpha1.Type]] = field(_.`type`)((c_, f_) => c_.copy(`type` = f_))
      def value: _root_.scalapb.lenses.Lens[UpperPB, com.google.api.expr.v1alpha1.Constant] = field(_.getValue)((c_, f_) => c_.copy(value = Option(f_)))
      def optionalValue: _root_.scalapb.lenses.Lens[UpperPB, _root_.scala.Option[com.google.api.expr.v1alpha1.Constant]] = field(_.value)((c_, f_) => c_.copy(value = f_))
      def doc: _root_.scalapb.lenses.Lens[UpperPB, _root_.scala.Predef.String] = field(_.doc)((c_, f_) => c_.copy(doc = f_))
    }
    final val TYPE_FIELD_NUMBER = 1
    final val VALUE_FIELD_NUMBER = 2
    final val DOC_FIELD_NUMBER = 3
    def of(
      `type`: _root_.scala.Option[com.google.api.expr.v1alpha1.Type],
      value: _root_.scala.Option[com.google.api.expr.v1alpha1.Constant],
      doc: _root_.scala.Predef.String
    ): _root_.com.google.api.expr.v1alpha1.Decl.IdentDecl = _root_.com.google.api.expr.v1alpha1.Decl.IdentDecl(
      `type`,
      value,
      doc
    )
    // @@protoc_insertion_point(GeneratedMessageCompanion[google.api.expr.v1alpha1.Decl.IdentDecl])
  }
  
  /** Function declaration specifies one or more overloads which indicate the
    * function's parameter types and return type, and may optionally specify a
    * function definition in terms of CEL expressions.
    *
    * Functions have no observable side-effects (there may be side-effects like
    * logging which are not observable from CEL).
    *
    * @param overloads
    *   Required. List of function overloads, must contain at least one overload.
    */
  @SerialVersionUID(0L)
  final case class FunctionDecl(
      overloads: _root_.scala.Seq[com.google.api.expr.v1alpha1.Decl.FunctionDecl.Overload] = _root_.scala.Seq.empty,
      unknownFields: _root_.scalapb.UnknownFieldSet = _root_.scalapb.UnknownFieldSet.empty
      ) extends scalapb.GeneratedMessage with scalapb.lenses.Updatable[FunctionDecl] {
      @transient
      private[this] var __serializedSizeMemoized: _root_.scala.Int = 0
      private[this] def __computeSerializedSize(): _root_.scala.Int = {
        var __size = 0
        overloads.foreach { __item =>
          val __value = __item
          __size += 1 + _root_.com.google.protobuf.CodedOutputStream.computeUInt32SizeNoTag(__value.serializedSize) + __value.serializedSize
        }
        __size += unknownFields.serializedSize
        __size
      }
      override def serializedSize: _root_.scala.Int = {
        var __size = __serializedSizeMemoized
        if (__size == 0) {
          __size = __computeSerializedSize() + 1
          __serializedSizeMemoized = __size
        }
        __size - 1
        
      }
      def writeTo(`_output__`: _root_.com.google.protobuf.CodedOutputStream): _root_.scala.Unit = {
        overloads.foreach { __v =>
          val __m = __v
          _output__.writeTag(1, 2)
          _output__.writeUInt32NoTag(__m.serializedSize)
          __m.writeTo(_output__)
        };
        unknownFields.writeTo(_output__)
      }
      def clearOverloads = copy(overloads = _root_.scala.Seq.empty)
      def addOverloads(__vs: com.google.api.expr.v1alpha1.Decl.FunctionDecl.Overload *): FunctionDecl = addAllOverloads(__vs)
      def addAllOverloads(__vs: Iterable[com.google.api.expr.v1alpha1.Decl.FunctionDecl.Overload]): FunctionDecl = copy(overloads = overloads ++ __vs)
      def withOverloads(__v: _root_.scala.Seq[com.google.api.expr.v1alpha1.Decl.FunctionDecl.Overload]): FunctionDecl = copy(overloads = __v)
      def withUnknownFields(__v: _root_.scalapb.UnknownFieldSet) = copy(unknownFields = __v)
      def discardUnknownFields = copy(unknownFields = _root_.scalapb.UnknownFieldSet.empty)
      def getFieldByNumber(__fieldNumber: _root_.scala.Int): _root_.scala.Any = {
        (__fieldNumber: @_root_.scala.unchecked) match {
          case 1 => overloads
        }
      }
      def getField(__field: _root_.scalapb.descriptors.FieldDescriptor): _root_.scalapb.descriptors.PValue = {
        _root_.scala.Predef.require(__field.containingMessage eq companion.scalaDescriptor)
        (__field.number: @_root_.scala.unchecked) match {
          case 1 => _root_.scalapb.descriptors.PRepeated(overloads.iterator.map(_.toPMessage).toVector)
        }
      }
      def toProtoString: _root_.scala.Predef.String = _root_.scalapb.TextFormat.printToUnicodeString(this)
      def companion: com.google.api.expr.v1alpha1.Decl.FunctionDecl.type = com.google.api.expr.v1alpha1.Decl.FunctionDecl
      // @@protoc_insertion_point(GeneratedMessage[google.api.expr.v1alpha1.Decl.FunctionDecl])
  }
  
  object FunctionDecl extends scalapb.GeneratedMessageCompanion[com.google.api.expr.v1alpha1.Decl.FunctionDecl] {
    implicit def messageCompanion: scalapb.GeneratedMessageCompanion[com.google.api.expr.v1alpha1.Decl.FunctionDecl] = this
    def parseFrom(`_input__`: _root_.com.google.protobuf.CodedInputStream): com.google.api.expr.v1alpha1.Decl.FunctionDecl = {
      val __overloads: _root_.scala.collection.immutable.VectorBuilder[com.google.api.expr.v1alpha1.Decl.FunctionDecl.Overload] = new _root_.scala.collection.immutable.VectorBuilder[com.google.api.expr.v1alpha1.Decl.FunctionDecl.Overload]
      var `_unknownFields__`: _root_.scalapb.UnknownFieldSet.Builder = null
      var _done__ = false
      while (!_done__) {
        val _tag__ = _input__.readTag()
        _tag__ match {
          case 0 => _done__ = true
          case 10 =>
            __overloads += _root_.scalapb.LiteParser.readMessage[com.google.api.expr.v1alpha1.Decl.FunctionDecl.Overload](_input__)
          case tag =>
            if (_unknownFields__ == null) {
              _unknownFields__ = new _root_.scalapb.UnknownFieldSet.Builder()
            }
            _unknownFields__.parseField(tag, _input__)
        }
      }
      com.google.api.expr.v1alpha1.Decl.FunctionDecl(
          overloads = __overloads.result(),
          unknownFields = if (_unknownFields__ == null) _root_.scalapb.UnknownFieldSet.empty else _unknownFields__.result()
      )
    }
    implicit def messageReads: _root_.scalapb.descriptors.Reads[com.google.api.expr.v1alpha1.Decl.FunctionDecl] = _root_.scalapb.descriptors.Reads{
      case _root_.scalapb.descriptors.PMessage(__fieldsMap) =>
        _root_.scala.Predef.require(__fieldsMap.keys.forall(_.containingMessage eq scalaDescriptor), "FieldDescriptor does not match message type.")
        com.google.api.expr.v1alpha1.Decl.FunctionDecl(
          overloads = __fieldsMap.get(scalaDescriptor.findFieldByNumber(1).get).map(_.as[_root_.scala.Seq[com.google.api.expr.v1alpha1.Decl.FunctionDecl.Overload]]).getOrElse(_root_.scala.Seq.empty)
        )
      case _ => throw new RuntimeException("Expected PMessage")
    }
    def javaDescriptor: _root_.com.google.protobuf.Descriptors.Descriptor = com.google.api.expr.v1alpha1.Decl.javaDescriptor.getNestedTypes().get(1)
    def scalaDescriptor: _root_.scalapb.descriptors.Descriptor = com.google.api.expr.v1alpha1.Decl.scalaDescriptor.nestedMessages(1)
    def messageCompanionForFieldNumber(__number: _root_.scala.Int): _root_.scalapb.GeneratedMessageCompanion[_] = {
      var __out: _root_.scalapb.GeneratedMessageCompanion[_] = null
      (__number: @_root_.scala.unchecked) match {
        case 1 => __out = com.google.api.expr.v1alpha1.Decl.FunctionDecl.Overload
      }
      __out
    }
    lazy val nestedMessagesCompanions: Seq[_root_.scalapb.GeneratedMessageCompanion[_ <: _root_.scalapb.GeneratedMessage]] =
      Seq[_root_.scalapb.GeneratedMessageCompanion[_ <: _root_.scalapb.GeneratedMessage]](
        _root_.com.google.api.expr.v1alpha1.Decl.FunctionDecl.Overload
      )
    def enumCompanionForFieldNumber(__fieldNumber: _root_.scala.Int): _root_.scalapb.GeneratedEnumCompanion[_] = throw new MatchError(__fieldNumber)
    lazy val defaultInstance = com.google.api.expr.v1alpha1.Decl.FunctionDecl(
      overloads = _root_.scala.Seq.empty
    )
    /** An overload indicates a function's parameter types and return type, and
      * may optionally include a function body described in terms of [Expr][google.api.expr.v1alpha1.Expr]
      * values.
      *
      * Functions overloads are declared in either a function or method
      * call-style. For methods, the `params[0]` is the expected type of the
      * target receiver.
      *
      * Overloads must have non-overlapping argument types after erasure of all
      * parameterized type variables (similar as type erasure in Java).
      *
      * @param overloadId
      *   Required. Globally unique overload name of the function which reflects
      *   the function name and argument types.
      *  
      *   This will be used by a [Reference][google.api.expr.v1alpha1.Reference] to indicate the `overload_id` that
      *   was resolved for the function `name`.
      * @param params
      *   List of function parameter [Type][google.api.expr.v1alpha1.Type] values.
      *  
      *   Param types are disjoint after generic type parameters have been
      *   replaced with the type `DYN`. Since the `DYN` type is compatible with
      *   any other type, this means that if `A` is a type parameter, the
      *   function types `int<A>` and `int<int>` are not disjoint. Likewise,
      *   `map<string, string>` is not disjoint from `map<K, V>`.
      *  
      *   When the `result_type` of a function is a generic type param, the
      *   type param name also appears as the `type` of on at least one params.
      * @param typeParams
      *   The type param names associated with the function declaration.
      *  
      *   For example, `function ex<K,V>(K key, map<K, V> map) : V` would yield
      *   the type params of `K, V`.
      * @param resultType
      *   Required. The result type of the function. For example, the operator
      *   `string.isEmpty()` would have `result_type` of `kind: BOOL`.
      * @param isInstanceFunction
      *   Whether the function is to be used in a method call-style `x.f(...)`
      *   of a function call-style `f(x, ...)`.
      *  
      *   For methods, the first parameter declaration, `params[0]` is the
      *   expected type of the target receiver.
      * @param doc
      *   Documentation string for the overload.
      */
    @SerialVersionUID(0L)
    final case class Overload(
        overloadId: _root_.scala.Predef.String = "",
        params: _root_.scala.Seq[com.google.api.expr.v1alpha1.Type] = _root_.scala.Seq.empty,
        typeParams: _root_.scala.Seq[_root_.scala.Predef.String] = _root_.scala.Seq.empty,
        resultType: _root_.scala.Option[com.google.api.expr.v1alpha1.Type] = _root_.scala.None,
        isInstanceFunction: _root_.scala.Boolean = false,
        doc: _root_.scala.Predef.String = "",
        unknownFields: _root_.scalapb.UnknownFieldSet = _root_.scalapb.UnknownFieldSet.empty
        ) extends scalapb.GeneratedMessage with scalapb.lenses.Updatable[Overload] {
        @transient
        private[this] var __serializedSizeMemoized: _root_.scala.Int = 0
        private[this] def __computeSerializedSize(): _root_.scala.Int = {
          var __size = 0
          
          {
            val __value = overloadId
            if (!__value.isEmpty) {
              __size += _root_.com.google.protobuf.CodedOutputStream.computeStringSize(1, __value)
            }
          };
          params.foreach { __item =>
            val __value = __item
            __size += 1 + _root_.com.google.protobuf.CodedOutputStream.computeUInt32SizeNoTag(__value.serializedSize) + __value.serializedSize
          }
          typeParams.foreach { __item =>
            val __value = __item
            __size += _root_.com.google.protobuf.CodedOutputStream.computeStringSize(3, __value)
          }
          if (resultType.isDefined) {
            val __value = resultType.get
            __size += 1 + _root_.com.google.protobuf.CodedOutputStream.computeUInt32SizeNoTag(__value.serializedSize) + __value.serializedSize
          };
          
          {
            val __value = isInstanceFunction
            if (__value != false) {
              __size += _root_.com.google.protobuf.CodedOutputStream.computeBoolSize(5, __value)
            }
          };
          
          {
            val __value = doc
            if (!__value.isEmpty) {
              __size += _root_.com.google.protobuf.CodedOutputStream.computeStringSize(6, __value)
            }
          };
          __size += unknownFields.serializedSize
          __size
        }
        override def serializedSize: _root_.scala.Int = {
          var __size = __serializedSizeMemoized
          if (__size == 0) {
            __size = __computeSerializedSize() + 1
            __serializedSizeMemoized = __size
          }
          __size - 1
          
        }
        def writeTo(`_output__`: _root_.com.google.protobuf.CodedOutputStream): _root_.scala.Unit = {
          {
            val __v = overloadId
            if (!__v.isEmpty) {
              _output__.writeString(1, __v)
            }
          };
          params.foreach { __v =>
            val __m = __v
            _output__.writeTag(2, 2)
            _output__.writeUInt32NoTag(__m.serializedSize)
            __m.writeTo(_output__)
          };
          typeParams.foreach { __v =>
            val __m = __v
            _output__.writeString(3, __m)
          };
          resultType.foreach { __v =>
            val __m = __v
            _output__.writeTag(4, 2)
            _output__.writeUInt32NoTag(__m.serializedSize)
            __m.writeTo(_output__)
          };
          {
            val __v = isInstanceFunction
            if (__v != false) {
              _output__.writeBool(5, __v)
            }
          };
          {
            val __v = doc
            if (!__v.isEmpty) {
              _output__.writeString(6, __v)
            }
          };
          unknownFields.writeTo(_output__)
        }
        def withOverloadId(__v: _root_.scala.Predef.String): Overload = copy(overloadId = __v)
        def clearParams = copy(params = _root_.scala.Seq.empty)
        def addParams(__vs: com.google.api.expr.v1alpha1.Type *): Overload = addAllParams(__vs)
        def addAllParams(__vs: Iterable[com.google.api.expr.v1alpha1.Type]): Overload = copy(params = params ++ __vs)
        def withParams(__v: _root_.scala.Seq[com.google.api.expr.v1alpha1.Type]): Overload = copy(params = __v)
        def clearTypeParams = copy(typeParams = _root_.scala.Seq.empty)
        def addTypeParams(__vs: _root_.scala.Predef.String *): Overload = addAllTypeParams(__vs)
        def addAllTypeParams(__vs: Iterable[_root_.scala.Predef.String]): Overload = copy(typeParams = typeParams ++ __vs)
        def withTypeParams(__v: _root_.scala.Seq[_root_.scala.Predef.String]): Overload = copy(typeParams = __v)
        def getResultType: com.google.api.expr.v1alpha1.Type = resultType.getOrElse(com.google.api.expr.v1alpha1.Type.defaultInstance)
        def clearResultType: Overload = copy(resultType = _root_.scala.None)
        def withResultType(__v: com.google.api.expr.v1alpha1.Type): Overload = copy(resultType = Option(__v))
        def withIsInstanceFunction(__v: _root_.scala.Boolean): Overload = copy(isInstanceFunction = __v)
        def withDoc(__v: _root_.scala.Predef.String): Overload = copy(doc = __v)
        def withUnknownFields(__v: _root_.scalapb.UnknownFieldSet) = copy(unknownFields = __v)
        def discardUnknownFields = copy(unknownFields = _root_.scalapb.UnknownFieldSet.empty)
        def getFieldByNumber(__fieldNumber: _root_.scala.Int): _root_.scala.Any = {
          (__fieldNumber: @_root_.scala.unchecked) match {
            case 1 => {
              val __t = overloadId
              if (__t != "") __t else null
            }
            case 2 => params
            case 3 => typeParams
            case 4 => resultType.orNull
            case 5 => {
              val __t = isInstanceFunction
              if (__t != false) __t else null
            }
            case 6 => {
              val __t = doc
              if (__t != "") __t else null
            }
          }
        }
        def getField(__field: _root_.scalapb.descriptors.FieldDescriptor): _root_.scalapb.descriptors.PValue = {
          _root_.scala.Predef.require(__field.containingMessage eq companion.scalaDescriptor)
          (__field.number: @_root_.scala.unchecked) match {
            case 1 => _root_.scalapb.descriptors.PString(overloadId)
            case 2 => _root_.scalapb.descriptors.PRepeated(params.iterator.map(_.toPMessage).toVector)
            case 3 => _root_.scalapb.descriptors.PRepeated(typeParams.iterator.map(_root_.scalapb.descriptors.PString(_)).toVector)
            case 4 => resultType.map(_.toPMessage).getOrElse(_root_.scalapb.descriptors.PEmpty)
            case 5 => _root_.scalapb.descriptors.PBoolean(isInstanceFunction)
            case 6 => _root_.scalapb.descriptors.PString(doc)
          }
        }
        def toProtoString: _root_.scala.Predef.String = _root_.scalapb.TextFormat.printToUnicodeString(this)
        def companion: com.google.api.expr.v1alpha1.Decl.FunctionDecl.Overload.type = com.google.api.expr.v1alpha1.Decl.FunctionDecl.Overload
        // @@protoc_insertion_point(GeneratedMessage[google.api.expr.v1alpha1.Decl.FunctionDecl.Overload])
    }
    
    object Overload extends scalapb.GeneratedMessageCompanion[com.google.api.expr.v1alpha1.Decl.FunctionDecl.Overload] {
      implicit def messageCompanion: scalapb.GeneratedMessageCompanion[com.google.api.expr.v1alpha1.Decl.FunctionDecl.Overload] = this
      def parseFrom(`_input__`: _root_.com.google.protobuf.CodedInputStream): com.google.api.expr.v1alpha1.Decl.FunctionDecl.Overload = {
        var __overloadId: _root_.scala.Predef.String = ""
        val __params: _root_.scala.collection.immutable.VectorBuilder[com.google.api.expr.v1alpha1.Type] = new _root_.scala.collection.immutable.VectorBuilder[com.google.api.expr.v1alpha1.Type]
        val __typeParams: _root_.scala.collection.immutable.VectorBuilder[_root_.scala.Predef.String] = new _root_.scala.collection.immutable.VectorBuilder[_root_.scala.Predef.String]
        var __resultType: _root_.scala.Option[com.google.api.expr.v1alpha1.Type] = _root_.scala.None
        var __isInstanceFunction: _root_.scala.Boolean = false
        var __doc: _root_.scala.Predef.String = ""
        var `_unknownFields__`: _root_.scalapb.UnknownFieldSet.Builder = null
        var _done__ = false
        while (!_done__) {
          val _tag__ = _input__.readTag()
          _tag__ match {
            case 0 => _done__ = true
            case 10 =>
              __overloadId = _input__.readStringRequireUtf8()
            case 18 =>
              __params += _root_.scalapb.LiteParser.readMessage[com.google.api.expr.v1alpha1.Type](_input__)
            case 26 =>
              __typeParams += _input__.readStringRequireUtf8()
            case 34 =>
              __resultType = Option(__resultType.fold(_root_.scalapb.LiteParser.readMessage[com.google.api.expr.v1alpha1.Type](_input__))(_root_.scalapb.LiteParser.readMessage(_input__, _)))
            case 40 =>
              __isInstanceFunction = _input__.readBool()
            case 50 =>
              __doc = _input__.readStringRequireUtf8()
            case tag =>
              if (_unknownFields__ == null) {
                _unknownFields__ = new _root_.scalapb.UnknownFieldSet.Builder()
              }
              _unknownFields__.parseField(tag, _input__)
          }
        }
        com.google.api.expr.v1alpha1.Decl.FunctionDecl.Overload(
            overloadId = __overloadId,
            params = __params.result(),
            typeParams = __typeParams.result(),
            resultType = __resultType,
            isInstanceFunction = __isInstanceFunction,
            doc = __doc,
            unknownFields = if (_unknownFields__ == null) _root_.scalapb.UnknownFieldSet.empty else _unknownFields__.result()
        )
      }
      implicit def messageReads: _root_.scalapb.descriptors.Reads[com.google.api.expr.v1alpha1.Decl.FunctionDecl.Overload] = _root_.scalapb.descriptors.Reads{
        case _root_.scalapb.descriptors.PMessage(__fieldsMap) =>
          _root_.scala.Predef.require(__fieldsMap.keys.forall(_.containingMessage eq scalaDescriptor), "FieldDescriptor does not match message type.")
          com.google.api.expr.v1alpha1.Decl.FunctionDecl.Overload(
            overloadId = __fieldsMap.get(scalaDescriptor.findFieldByNumber(1).get).map(_.as[_root_.scala.Predef.String]).getOrElse(""),
            params = __fieldsMap.get(scalaDescriptor.findFieldByNumber(2).get).map(_.as[_root_.scala.Seq[com.google.api.expr.v1alpha1.Type]]).getOrElse(_root_.scala.Seq.empty),
            typeParams = __fieldsMap.get(scalaDescriptor.findFieldByNumber(3).get).map(_.as[_root_.scala.Seq[_root_.scala.Predef.String]]).getOrElse(_root_.scala.Seq.empty),
            resultType = __fieldsMap.get(scalaDescriptor.findFieldByNumber(4).get).flatMap(_.as[_root_.scala.Option[com.google.api.expr.v1alpha1.Type]]),
            isInstanceFunction = __fieldsMap.get(scalaDescriptor.findFieldByNumber(5).get).map(_.as[_root_.scala.Boolean]).getOrElse(false),
            doc = __fieldsMap.get(scalaDescriptor.findFieldByNumber(6).get).map(_.as[_root_.scala.Predef.String]).getOrElse("")
          )
        case _ => throw new RuntimeException("Expected PMessage")
      }
      def javaDescriptor: _root_.com.google.protobuf.Descriptors.Descriptor = com.google.api.expr.v1alpha1.Decl.FunctionDecl.javaDescriptor.getNestedTypes().get(0)
      def scalaDescriptor: _root_.scalapb.descriptors.Descriptor = com.google.api.expr.v1alpha1.Decl.FunctionDecl.scalaDescriptor.nestedMessages(0)
      def messageCompanionForFieldNumber(__number: _root_.scala.Int): _root_.scalapb.GeneratedMessageCompanion[_] = {
        var __out: _root_.scalapb.GeneratedMessageCompanion[_] = null
        (__number: @_root_.scala.unchecked) match {
          case 2 => __out = com.google.api.expr.v1alpha1.Type
          case 4 => __out = com.google.api.expr.v1alpha1.Type
        }
        __out
      }
      lazy val nestedMessagesCompanions: Seq[_root_.scalapb.GeneratedMessageCompanion[_ <: _root_.scalapb.GeneratedMessage]] = Seq.empty
      def enumCompanionForFieldNumber(__fieldNumber: _root_.scala.Int): _root_.scalapb.GeneratedEnumCompanion[_] = throw new MatchError(__fieldNumber)
      lazy val defaultInstance = com.google.api.expr.v1alpha1.Decl.FunctionDecl.Overload(
        overloadId = "",
        params = _root_.scala.Seq.empty,
        typeParams = _root_.scala.Seq.empty,
        resultType = _root_.scala.None,
        isInstanceFunction = false,
        doc = ""
      )
      implicit class OverloadLens[UpperPB](_l: _root_.scalapb.lenses.Lens[UpperPB, com.google.api.expr.v1alpha1.Decl.FunctionDecl.Overload]) extends _root_.scalapb.lenses.ObjectLens[UpperPB, com.google.api.expr.v1alpha1.Decl.FunctionDecl.Overload](_l) {
        def overloadId: _root_.scalapb.lenses.Lens[UpperPB, _root_.scala.Predef.String] = field(_.overloadId)((c_, f_) => c_.copy(overloadId = f_))
        def params: _root_.scalapb.lenses.Lens[UpperPB, _root_.scala.Seq[com.google.api.expr.v1alpha1.Type]] = field(_.params)((c_, f_) => c_.copy(params = f_))
        def typeParams: _root_.scalapb.lenses.Lens[UpperPB, _root_.scala.Seq[_root_.scala.Predef.String]] = field(_.typeParams)((c_, f_) => c_.copy(typeParams = f_))
        def resultType: _root_.scalapb.lenses.Lens[UpperPB, com.google.api.expr.v1alpha1.Type] = field(_.getResultType)((c_, f_) => c_.copy(resultType = Option(f_)))
        def optionalResultType: _root_.scalapb.lenses.Lens[UpperPB, _root_.scala.Option[com.google.api.expr.v1alpha1.Type]] = field(_.resultType)((c_, f_) => c_.copy(resultType = f_))
        def isInstanceFunction: _root_.scalapb.lenses.Lens[UpperPB, _root_.scala.Boolean] = field(_.isInstanceFunction)((c_, f_) => c_.copy(isInstanceFunction = f_))
        def doc: _root_.scalapb.lenses.Lens[UpperPB, _root_.scala.Predef.String] = field(_.doc)((c_, f_) => c_.copy(doc = f_))
      }
      final val OVERLOAD_ID_FIELD_NUMBER = 1
      final val PARAMS_FIELD_NUMBER = 2
      final val TYPE_PARAMS_FIELD_NUMBER = 3
      final val RESULT_TYPE_FIELD_NUMBER = 4
      final val IS_INSTANCE_FUNCTION_FIELD_NUMBER = 5
      final val DOC_FIELD_NUMBER = 6
      def of(
        overloadId: _root_.scala.Predef.String,
        params: _root_.scala.Seq[com.google.api.expr.v1alpha1.Type],
        typeParams: _root_.scala.Seq[_root_.scala.Predef.String],
        resultType: _root_.scala.Option[com.google.api.expr.v1alpha1.Type],
        isInstanceFunction: _root_.scala.Boolean,
        doc: _root_.scala.Predef.String
      ): _root_.com.google.api.expr.v1alpha1.Decl.FunctionDecl.Overload = _root_.com.google.api.expr.v1alpha1.Decl.FunctionDecl.Overload(
        overloadId,
        params,
        typeParams,
        resultType,
        isInstanceFunction,
        doc
      )
      // @@protoc_insertion_point(GeneratedMessageCompanion[google.api.expr.v1alpha1.Decl.FunctionDecl.Overload])
    }
    
    implicit class FunctionDeclLens[UpperPB](_l: _root_.scalapb.lenses.Lens[UpperPB, com.google.api.expr.v1alpha1.Decl.FunctionDecl]) extends _root_.scalapb.lenses.ObjectLens[UpperPB, com.google.api.expr.v1alpha1.Decl.FunctionDecl](_l) {
      def overloads: _root_.scalapb.lenses.Lens[UpperPB, _root_.scala.Seq[com.google.api.expr.v1alpha1.Decl.FunctionDecl.Overload]] = field(_.overloads)((c_, f_) => c_.copy(overloads = f_))
    }
    final val OVERLOADS_FIELD_NUMBER = 1
    def of(
      overloads: _root_.scala.Seq[com.google.api.expr.v1alpha1.Decl.FunctionDecl.Overload]
    ): _root_.com.google.api.expr.v1alpha1.Decl.FunctionDecl = _root_.com.google.api.expr.v1alpha1.Decl.FunctionDecl(
      overloads
    )
    // @@protoc_insertion_point(GeneratedMessageCompanion[google.api.expr.v1alpha1.Decl.FunctionDecl])
  }
  
  implicit class DeclLens[UpperPB](_l: _root_.scalapb.lenses.Lens[UpperPB, com.google.api.expr.v1alpha1.Decl]) extends _root_.scalapb.lenses.ObjectLens[UpperPB, com.google.api.expr.v1alpha1.Decl](_l) {
    def name: _root_.scalapb.lenses.Lens[UpperPB, _root_.scala.Predef.String] = field(_.name)((c_, f_) => c_.copy(name = f_))
    def ident: _root_.scalapb.lenses.Lens[UpperPB, com.google.api.expr.v1alpha1.Decl.IdentDecl] = field(_.getIdent)((c_, f_) => c_.copy(declKind = com.google.api.expr.v1alpha1.Decl.DeclKind.Ident(f_)))
    def function: _root_.scalapb.lenses.Lens[UpperPB, com.google.api.expr.v1alpha1.Decl.FunctionDecl] = field(_.getFunction)((c_, f_) => c_.copy(declKind = com.google.api.expr.v1alpha1.Decl.DeclKind.Function(f_)))
    def declKind: _root_.scalapb.lenses.Lens[UpperPB, com.google.api.expr.v1alpha1.Decl.DeclKind] = field(_.declKind)((c_, f_) => c_.copy(declKind = f_))
  }
  final val NAME_FIELD_NUMBER = 1
  final val IDENT_FIELD_NUMBER = 2
  final val FUNCTION_FIELD_NUMBER = 3
  def of(
    name: _root_.scala.Predef.String,
    declKind: com.google.api.expr.v1alpha1.Decl.DeclKind
  ): _root_.com.google.api.expr.v1alpha1.Decl = _root_.com.google.api.expr.v1alpha1.Decl(
    name,
    declKind
  )
  // @@protoc_insertion_point(GeneratedMessageCompanion[google.api.expr.v1alpha1.Decl])
}




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