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// Copyright 2019 Google LLC.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//

syntax = "proto3";

package google.api;

import "google/protobuf/descriptor.proto";

option go_package = "google.golang.org/genproto/googleapis/api/annotations;annotations";
option java_multiple_files = true;
option java_outer_classname = "ClientProto";
option java_package = "com.google.api";
option objc_class_prefix = "GAPI";

extend google.protobuf.MethodOptions {
  // A definition of a client library method signature.
  //
  // In client libraries, each proto RPC corresponds to one or more methods
  // which the end user is able to call, and calls the underlying RPC.
  // Normally, this method receives a single argument (a struct or instance
  // corresponding to the RPC request object). Defining this field will
  // add one or more overloads providing flattened or simpler method signatures
  // in some languages.
  //
  // The fields on the method signature are provided as a comma-separated
  // string.
  //
  // For example, the proto RPC and annotation:
  //
  //   rpc CreateSubscription(CreateSubscriptionRequest)
  //       returns (Subscription) {
  //     option (google.api.method_signature) = "name,topic";
  //   }
  //
  // Would add the following Java overload (in addition to the method accepting
  // the request object):
  //
  //   public final Subscription createSubscription(String name, String topic)
  //
  // The following backwards-compatibility guidelines apply:
  //
  //   * Adding this annotation to an unannotated method is backwards
  //     compatible.
  //   * Adding this annotation to a method which already has existing
  //     method signature annotations is backwards compatible if and only if
  //     the new method signature annotation is last in the sequence.
  //   * Modifying or removing an existing method signature annotation is
  //     a breaking change.
  //   * Re-ordering existing method signature annotations is a breaking
  //     change.
  repeated string method_signature = 1051;
}

extend google.protobuf.ServiceOptions {
  // The hostname for this service.
  // This should be specified with no prefix or protocol.
  //
  // Example:
  //
  //   service Foo {
  //     option (google.api.default_host) = "foo.googleapi.com";
  //     ...
  //   }
  string default_host = 1049;

  // OAuth scopes needed for the client.
  //
  // Example:
  //
  //   service Foo {
  //     option (google.api.oauth_scopes) = \
  //       "https://www.googleapis.com/auth/cloud-platform";
  //     ...
  //   }
  //
  // If there is more than one scope, use a comma-separated string:
  //
  // Example:
  //
  //   service Foo {
  //     option (google.api.oauth_scopes) = \
  //       "https://www.googleapis.com/auth/cloud-platform,"
  //       "https://www.googleapis.com/auth/monitoring";
  //     ...
  //   }
  string oauth_scopes = 1050;
}