# frozen_string_literal: true

# Copyright 2020 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
#
#     https://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.

# Auto-generated by gapic-generator-ruby. DO NOT EDIT!

require "google/cloud/errors"
require "google/cloud/dialogflow/v2/agent_pb"
require "google/cloud/location"

module Google
  module Cloud
    module Dialogflow
      module V2
        module Agents
          ##
          # Client for the Agents service.
          #
          # Service for managing {::Google::Cloud::Dialogflow::V2::Agent Agents}.
          #
          class Client
            include Paths

            # @private
            attr_reader :agents_stub

            ##
            # Configure the Agents Client class.
            #
            # See {::Google::Cloud::Dialogflow::V2::Agents::Client::Configuration}
            # for a description of the configuration fields.
            #
            # @example
            #
            #   # Modify the configuration for all Agents clients
            #   ::Google::Cloud::Dialogflow::V2::Agents::Client.configure do |config|
            #     config.timeout = 10.0
            #   end
            #
            # @yield [config] Configure the Client client.
            # @yieldparam config [Client::Configuration]
            #
            # @return [Client::Configuration]
            #
            def self.configure
              @configure ||= begin
                namespace = ["Google", "Cloud", "Dialogflow", "V2"]
                parent_config = while namespace.any?
                                  parent_name = namespace.join "::"
                                  parent_const = const_get parent_name
                                  break parent_const.configure if parent_const.respond_to? :configure
                                  namespace.pop
                                end
                default_config = Client::Configuration.new parent_config

                default_config.timeout = 60.0
                default_config.retry_policy = {
                  initial_delay: 0.1, max_delay: 60.0, multiplier: 1.3, retry_codes: [14]
                }

                default_config
              end
              yield @configure if block_given?
              @configure
            end

            ##
            # Configure the Agents Client instance.
            #
            # The configuration is set to the derived mode, meaning that values can be changed,
            # but structural changes (adding new fields, etc.) are not allowed. Structural changes
            # should be made on {Client.configure}.
            #
            # See {::Google::Cloud::Dialogflow::V2::Agents::Client::Configuration}
            # for a description of the configuration fields.
            #
            # @yield [config] Configure the Client client.
            # @yieldparam config [Client::Configuration]
            #
            # @return [Client::Configuration]
            #
            def configure
              yield @config if block_given?
              @config
            end

            ##
            # Create a new Agents client object.
            #
            # @example
            #
            #   # Create a client using the default configuration
            #   client = ::Google::Cloud::Dialogflow::V2::Agents::Client.new
            #
            #   # Create a client using a custom configuration
            #   client = ::Google::Cloud::Dialogflow::V2::Agents::Client.new do |config|
            #     config.timeout = 10.0
            #   end
            #
            # @yield [config] Configure the Agents client.
            # @yieldparam config [Client::Configuration]
            #
            def initialize
              # These require statements are intentionally placed here to initialize
              # the gRPC module only when it's required.
              # See https://github.com/googleapis/toolkit/issues/446
              require "gapic/grpc"
              require "google/cloud/dialogflow/v2/agent_services_pb"

              # Create the configuration object
              @config = Configuration.new Client.configure

              # Yield the configuration if needed
              yield @config if block_given?

              # Create credentials
              credentials = @config.credentials
              # Use self-signed JWT if the endpoint is unchanged from default,
              # but only if the default endpoint does not have a region prefix.
              enable_self_signed_jwt = @config.endpoint == Client.configure.endpoint &&
                                       !@config.endpoint.split(".").first.include?("-")
              credentials ||= Credentials.default scope: @config.scope,
                                                  enable_self_signed_jwt: enable_self_signed_jwt
              if credentials.is_a?(::String) || credentials.is_a?(::Hash)
                credentials = Credentials.new credentials, scope: @config.scope
              end
              @quota_project_id = @config.quota_project
              @quota_project_id ||= credentials.quota_project_id if credentials.respond_to? :quota_project_id

              @operations_client = Operations.new do |config|
                config.credentials = credentials
                config.quota_project = @quota_project_id
                config.endpoint = @config.endpoint
              end

              @location_client = Google::Cloud::Location::Locations::Client.new do |config|
                config.credentials = credentials
                config.quota_project = @quota_project_id
                config.endpoint = @config.endpoint
              end

              @agents_stub = ::Gapic::ServiceStub.new(
                ::Google::Cloud::Dialogflow::V2::Agents::Stub,
                credentials:  credentials,
                endpoint:     @config.endpoint,
                channel_args: @config.channel_args,
                interceptors: @config.interceptors
              )
            end

            ##
            # Get the associated client for long-running operations.
            #
            # @return [::Google::Cloud::Dialogflow::V2::Agents::Operations]
            #
            attr_reader :operations_client

            ##
            # Get the associated client for mix-in of the Locations.
            #
            # @return [Google::Cloud::Location::Locations::Client]
            #
            attr_reader :location_client

            # Service calls

            ##
            # Retrieves the specified agent.
            #
            # @overload get_agent(request, options = nil)
            #   Pass arguments to `get_agent` via a request object, either of type
            #   {::Google::Cloud::Dialogflow::V2::GetAgentRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::Dialogflow::V2::GetAgentRequest, ::Hash]
            #     A request object representing the call parameters. Required. To specify no
            #     parameters, or to keep all the default parameter values, pass an empty Hash.
            #   @param options [::Gapic::CallOptions, ::Hash]
            #     Overrides the default settings for this call, e.g, timeout, retries, etc. Optional.
            #
            # @overload get_agent(parent: nil)
            #   Pass arguments to `get_agent` via keyword arguments. Note that at
            #   least one keyword argument is required. To specify no parameters, or to keep all
            #   the default parameter values, pass an empty Hash as a request object (see above).
            #
            #   @param parent [::String]
            #     Required. The project that the agent to fetch is associated with.
            #     Format: `projects/<Project ID>`.
            #
            # @yield [response, operation] Access the result along with the RPC operation
            # @yieldparam response [::Google::Cloud::Dialogflow::V2::Agent]
            # @yieldparam operation [::GRPC::ActiveCall::Operation]
            #
            # @return [::Google::Cloud::Dialogflow::V2::Agent]
            #
            # @raise [::Google::Cloud::Error] if the RPC is aborted.
            #
            # @example Basic example
            #   require "google/cloud/dialogflow/v2"
            #
            #   # Create a client object. The client can be reused for multiple calls.
            #   client = Google::Cloud::Dialogflow::V2::Agents::Client.new
            #
            #   # Create a request. To set request fields, pass in keyword arguments.
            #   request = Google::Cloud::Dialogflow::V2::GetAgentRequest.new
            #
            #   # Call the get_agent method.
            #   result = client.get_agent request
            #
            #   # The returned object is of type Google::Cloud::Dialogflow::V2::Agent.
            #   p result
            #
            def get_agent request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::Dialogflow::V2::GetAgentRequest

              # Converts hash and nil to an options object
              options = ::Gapic::CallOptions.new(**options.to_h) if options.respond_to? :to_h

              # Customize the options with defaults
              metadata = @config.rpcs.get_agent.metadata.to_h

              # Set x-goog-api-client and x-goog-user-project headers
              metadata[:"x-goog-api-client"] ||= ::Gapic::Headers.x_goog_api_client \
                lib_name: @config.lib_name, lib_version: @config.lib_version,
                gapic_version: ::Google::Cloud::Dialogflow::V2::VERSION
              metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

              header_params = {}
              if request.parent
                header_params["parent"] = request.parent
              end

              request_params_header = header_params.map { |k, v| "#{k}=#{v}" }.join("&")
              metadata[:"x-goog-request-params"] ||= request_params_header

              options.apply_defaults timeout:      @config.rpcs.get_agent.timeout,
                                     metadata:     metadata,
                                     retry_policy: @config.rpcs.get_agent.retry_policy

              options.apply_defaults timeout:      @config.timeout,
                                     metadata:     @config.metadata,
                                     retry_policy: @config.retry_policy

              @agents_stub.call_rpc :get_agent, request, options: options do |response, operation|
                yield response, operation if block_given?
                return response
              end
            rescue ::GRPC::BadStatus => e
              raise ::Google::Cloud::Error.from_error(e)
            end

            ##
            # Creates/updates the specified agent.
            #
            # Note: You should always train an agent prior to sending it queries. See the
            # [training
            # documentation](https://cloud.google.com/dialogflow/es/docs/training).
            #
            # @overload set_agent(request, options = nil)
            #   Pass arguments to `set_agent` via a request object, either of type
            #   {::Google::Cloud::Dialogflow::V2::SetAgentRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::Dialogflow::V2::SetAgentRequest, ::Hash]
            #     A request object representing the call parameters. Required. To specify no
            #     parameters, or to keep all the default parameter values, pass an empty Hash.
            #   @param options [::Gapic::CallOptions, ::Hash]
            #     Overrides the default settings for this call, e.g, timeout, retries, etc. Optional.
            #
            # @overload set_agent(agent: nil, update_mask: nil)
            #   Pass arguments to `set_agent` via keyword arguments. Note that at
            #   least one keyword argument is required. To specify no parameters, or to keep all
            #   the default parameter values, pass an empty Hash as a request object (see above).
            #
            #   @param agent [::Google::Cloud::Dialogflow::V2::Agent, ::Hash]
            #     Required. The agent to update.
            #   @param update_mask [::Google::Protobuf::FieldMask, ::Hash]
            #     Optional. The mask to control which fields get updated.
            #
            # @yield [response, operation] Access the result along with the RPC operation
            # @yieldparam response [::Google::Cloud::Dialogflow::V2::Agent]
            # @yieldparam operation [::GRPC::ActiveCall::Operation]
            #
            # @return [::Google::Cloud::Dialogflow::V2::Agent]
            #
            # @raise [::Google::Cloud::Error] if the RPC is aborted.
            #
            # @example Basic example
            #   require "google/cloud/dialogflow/v2"
            #
            #   # Create a client object. The client can be reused for multiple calls.
            #   client = Google::Cloud::Dialogflow::V2::Agents::Client.new
            #
            #   # Create a request. To set request fields, pass in keyword arguments.
            #   request = Google::Cloud::Dialogflow::V2::SetAgentRequest.new
            #
            #   # Call the set_agent method.
            #   result = client.set_agent request
            #
            #   # The returned object is of type Google::Cloud::Dialogflow::V2::Agent.
            #   p result
            #
            def set_agent request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::Dialogflow::V2::SetAgentRequest

              # Converts hash and nil to an options object
              options = ::Gapic::CallOptions.new(**options.to_h) if options.respond_to? :to_h

              # Customize the options with defaults
              metadata = @config.rpcs.set_agent.metadata.to_h

              # Set x-goog-api-client and x-goog-user-project headers
              metadata[:"x-goog-api-client"] ||= ::Gapic::Headers.x_goog_api_client \
                lib_name: @config.lib_name, lib_version: @config.lib_version,
                gapic_version: ::Google::Cloud::Dialogflow::V2::VERSION
              metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

              header_params = {}
              if request.agent&.parent
                header_params["agent.parent"] = request.agent.parent
              end

              request_params_header = header_params.map { |k, v| "#{k}=#{v}" }.join("&")
              metadata[:"x-goog-request-params"] ||= request_params_header

              options.apply_defaults timeout:      @config.rpcs.set_agent.timeout,
                                     metadata:     metadata,
                                     retry_policy: @config.rpcs.set_agent.retry_policy

              options.apply_defaults timeout:      @config.timeout,
                                     metadata:     @config.metadata,
                                     retry_policy: @config.retry_policy

              @agents_stub.call_rpc :set_agent, request, options: options do |response, operation|
                yield response, operation if block_given?
                return response
              end
            rescue ::GRPC::BadStatus => e
              raise ::Google::Cloud::Error.from_error(e)
            end

            ##
            # Deletes the specified agent.
            #
            # @overload delete_agent(request, options = nil)
            #   Pass arguments to `delete_agent` via a request object, either of type
            #   {::Google::Cloud::Dialogflow::V2::DeleteAgentRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::Dialogflow::V2::DeleteAgentRequest, ::Hash]
            #     A request object representing the call parameters. Required. To specify no
            #     parameters, or to keep all the default parameter values, pass an empty Hash.
            #   @param options [::Gapic::CallOptions, ::Hash]
            #     Overrides the default settings for this call, e.g, timeout, retries, etc. Optional.
            #
            # @overload delete_agent(parent: nil)
            #   Pass arguments to `delete_agent` via keyword arguments. Note that at
            #   least one keyword argument is required. To specify no parameters, or to keep all
            #   the default parameter values, pass an empty Hash as a request object (see above).
            #
            #   @param parent [::String]
            #     Required. The project that the agent to delete is associated with.
            #     Format: `projects/<Project ID>`.
            #
            # @yield [response, operation] Access the result along with the RPC operation
            # @yieldparam response [::Google::Protobuf::Empty]
            # @yieldparam operation [::GRPC::ActiveCall::Operation]
            #
            # @return [::Google::Protobuf::Empty]
            #
            # @raise [::Google::Cloud::Error] if the RPC is aborted.
            #
            # @example Basic example
            #   require "google/cloud/dialogflow/v2"
            #
            #   # Create a client object. The client can be reused for multiple calls.
            #   client = Google::Cloud::Dialogflow::V2::Agents::Client.new
            #
            #   # Create a request. To set request fields, pass in keyword arguments.
            #   request = Google::Cloud::Dialogflow::V2::DeleteAgentRequest.new
            #
            #   # Call the delete_agent method.
            #   result = client.delete_agent request
            #
            #   # The returned object is of type Google::Protobuf::Empty.
            #   p result
            #
            def delete_agent request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::Dialogflow::V2::DeleteAgentRequest

              # Converts hash and nil to an options object
              options = ::Gapic::CallOptions.new(**options.to_h) if options.respond_to? :to_h

              # Customize the options with defaults
              metadata = @config.rpcs.delete_agent.metadata.to_h

              # Set x-goog-api-client and x-goog-user-project headers
              metadata[:"x-goog-api-client"] ||= ::Gapic::Headers.x_goog_api_client \
                lib_name: @config.lib_name, lib_version: @config.lib_version,
                gapic_version: ::Google::Cloud::Dialogflow::V2::VERSION
              metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

              header_params = {}
              if request.parent
                header_params["parent"] = request.parent
              end

              request_params_header = header_params.map { |k, v| "#{k}=#{v}" }.join("&")
              metadata[:"x-goog-request-params"] ||= request_params_header

              options.apply_defaults timeout:      @config.rpcs.delete_agent.timeout,
                                     metadata:     metadata,
                                     retry_policy: @config.rpcs.delete_agent.retry_policy

              options.apply_defaults timeout:      @config.timeout,
                                     metadata:     @config.metadata,
                                     retry_policy: @config.retry_policy

              @agents_stub.call_rpc :delete_agent, request, options: options do |response, operation|
                yield response, operation if block_given?
                return response
              end
            rescue ::GRPC::BadStatus => e
              raise ::Google::Cloud::Error.from_error(e)
            end

            ##
            # Returns the list of agents.
            #
            # Since there is at most one conversational agent per project, this method is
            # useful primarily for listing all agents across projects the caller has
            # access to. One can achieve that with a wildcard project collection id "-".
            # Refer to [List
            # Sub-Collections](https://cloud.google.com/apis/design/design_patterns#list_sub-collections).
            #
            # @overload search_agents(request, options = nil)
            #   Pass arguments to `search_agents` via a request object, either of type
            #   {::Google::Cloud::Dialogflow::V2::SearchAgentsRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::Dialogflow::V2::SearchAgentsRequest, ::Hash]
            #     A request object representing the call parameters. Required. To specify no
            #     parameters, or to keep all the default parameter values, pass an empty Hash.
            #   @param options [::Gapic::CallOptions, ::Hash]
            #     Overrides the default settings for this call, e.g, timeout, retries, etc. Optional.
            #
            # @overload search_agents(parent: nil, page_size: nil, page_token: nil)
            #   Pass arguments to `search_agents` via keyword arguments. Note that at
            #   least one keyword argument is required. To specify no parameters, or to keep all
            #   the default parameter values, pass an empty Hash as a request object (see above).
            #
            #   @param parent [::String]
            #     Required. The project to list agents from.
            #     Format: `projects/<Project ID or '-'>`.
            #   @param page_size [::Integer]
            #     Optional. The maximum number of items to return in a single page. By
            #     default 100 and at most 1000.
            #   @param page_token [::String]
            #     The next_page_token value returned from a previous list request.
            #
            # @yield [response, operation] Access the result along with the RPC operation
            # @yieldparam response [::Gapic::PagedEnumerable<::Google::Cloud::Dialogflow::V2::Agent>]
            # @yieldparam operation [::GRPC::ActiveCall::Operation]
            #
            # @return [::Gapic::PagedEnumerable<::Google::Cloud::Dialogflow::V2::Agent>]
            #
            # @raise [::Google::Cloud::Error] if the RPC is aborted.
            #
            # @example Basic example
            #   require "google/cloud/dialogflow/v2"
            #
            #   # Create a client object. The client can be reused for multiple calls.
            #   client = Google::Cloud::Dialogflow::V2::Agents::Client.new
            #
            #   # Create a request. To set request fields, pass in keyword arguments.
            #   request = Google::Cloud::Dialogflow::V2::SearchAgentsRequest.new
            #
            #   # Call the search_agents method.
            #   result = client.search_agents request
            #
            #   # The returned object is of type Gapic::PagedEnumerable. You can iterate
            #   # over elements, and API calls will be issued to fetch pages as needed.
            #   result.each do |item|
            #     # Each element is of type ::Google::Cloud::Dialogflow::V2::Agent.
            #     p item
            #   end
            #
            def search_agents request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::Dialogflow::V2::SearchAgentsRequest

              # Converts hash and nil to an options object
              options = ::Gapic::CallOptions.new(**options.to_h) if options.respond_to? :to_h

              # Customize the options with defaults
              metadata = @config.rpcs.search_agents.metadata.to_h

              # Set x-goog-api-client and x-goog-user-project headers
              metadata[:"x-goog-api-client"] ||= ::Gapic::Headers.x_goog_api_client \
                lib_name: @config.lib_name, lib_version: @config.lib_version,
                gapic_version: ::Google::Cloud::Dialogflow::V2::VERSION
              metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

              header_params = {}
              if request.parent
                header_params["parent"] = request.parent
              end

              request_params_header = header_params.map { |k, v| "#{k}=#{v}" }.join("&")
              metadata[:"x-goog-request-params"] ||= request_params_header

              options.apply_defaults timeout:      @config.rpcs.search_agents.timeout,
                                     metadata:     metadata,
                                     retry_policy: @config.rpcs.search_agents.retry_policy

              options.apply_defaults timeout:      @config.timeout,
                                     metadata:     @config.metadata,
                                     retry_policy: @config.retry_policy

              @agents_stub.call_rpc :search_agents, request, options: options do |response, operation|
                response = ::Gapic::PagedEnumerable.new @agents_stub, :search_agents, request, response, operation, options
                yield response, operation if block_given?
                return response
              end
            rescue ::GRPC::BadStatus => e
              raise ::Google::Cloud::Error.from_error(e)
            end

            ##
            # Trains the specified agent.
            #
            # This method is a [long-running
            # operation](https://cloud.google.com/dialogflow/es/docs/how/long-running-operations).
            # The returned `Operation` type has the following method-specific fields:
            #
            # - `metadata`: An empty [Struct
            #   message](https://developers.google.com/protocol-buffers/docs/reference/google.protobuf#struct)
            # - `response`: An [Empty
            #   message](https://developers.google.com/protocol-buffers/docs/reference/google.protobuf#empty)
            #
            # Note: You should always train an agent prior to sending it queries. See the
            # [training
            # documentation](https://cloud.google.com/dialogflow/es/docs/training).
            #
            # @overload train_agent(request, options = nil)
            #   Pass arguments to `train_agent` via a request object, either of type
            #   {::Google::Cloud::Dialogflow::V2::TrainAgentRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::Dialogflow::V2::TrainAgentRequest, ::Hash]
            #     A request object representing the call parameters. Required. To specify no
            #     parameters, or to keep all the default parameter values, pass an empty Hash.
            #   @param options [::Gapic::CallOptions, ::Hash]
            #     Overrides the default settings for this call, e.g, timeout, retries, etc. Optional.
            #
            # @overload train_agent(parent: nil)
            #   Pass arguments to `train_agent` via keyword arguments. Note that at
            #   least one keyword argument is required. To specify no parameters, or to keep all
            #   the default parameter values, pass an empty Hash as a request object (see above).
            #
            #   @param parent [::String]
            #     Required. The project that the agent to train is associated with.
            #     Format: `projects/<Project ID>`.
            #
            # @yield [response, operation] Access the result along with the RPC operation
            # @yieldparam response [::Gapic::Operation]
            # @yieldparam operation [::GRPC::ActiveCall::Operation]
            #
            # @return [::Gapic::Operation]
            #
            # @raise [::Google::Cloud::Error] if the RPC is aborted.
            #
            # @example Basic example
            #   require "google/cloud/dialogflow/v2"
            #
            #   # Create a client object. The client can be reused for multiple calls.
            #   client = Google::Cloud::Dialogflow::V2::Agents::Client.new
            #
            #   # Create a request. To set request fields, pass in keyword arguments.
            #   request = Google::Cloud::Dialogflow::V2::TrainAgentRequest.new
            #
            #   # Call the train_agent method.
            #   result = client.train_agent request
            #
            #   # The returned object is of type Gapic::Operation. You can use it to
            #   # check the status of an operation, cancel it, or wait for results.
            #   # Here is how to wait for a response.
            #   result.wait_until_done! timeout: 60
            #   if result.response?
            #     p result.response
            #   else
            #     puts "No response received."
            #   end
            #
            def train_agent request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::Dialogflow::V2::TrainAgentRequest

              # Converts hash and nil to an options object
              options = ::Gapic::CallOptions.new(**options.to_h) if options.respond_to? :to_h

              # Customize the options with defaults
              metadata = @config.rpcs.train_agent.metadata.to_h

              # Set x-goog-api-client and x-goog-user-project headers
              metadata[:"x-goog-api-client"] ||= ::Gapic::Headers.x_goog_api_client \
                lib_name: @config.lib_name, lib_version: @config.lib_version,
                gapic_version: ::Google::Cloud::Dialogflow::V2::VERSION
              metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

              header_params = {}
              if request.parent
                header_params["parent"] = request.parent
              end

              request_params_header = header_params.map { |k, v| "#{k}=#{v}" }.join("&")
              metadata[:"x-goog-request-params"] ||= request_params_header

              options.apply_defaults timeout:      @config.rpcs.train_agent.timeout,
                                     metadata:     metadata,
                                     retry_policy: @config.rpcs.train_agent.retry_policy

              options.apply_defaults timeout:      @config.timeout,
                                     metadata:     @config.metadata,
                                     retry_policy: @config.retry_policy

              @agents_stub.call_rpc :train_agent, request, options: options do |response, operation|
                response = ::Gapic::Operation.new response, @operations_client, options: options
                yield response, operation if block_given?
                return response
              end
            rescue ::GRPC::BadStatus => e
              raise ::Google::Cloud::Error.from_error(e)
            end

            ##
            # Exports the specified agent to a ZIP file.
            #
            # This method is a [long-running
            # operation](https://cloud.google.com/dialogflow/es/docs/how/long-running-operations).
            # The returned `Operation` type has the following method-specific fields:
            #
            # - `metadata`: An empty [Struct
            #   message](https://developers.google.com/protocol-buffers/docs/reference/google.protobuf#struct)
            # - `response`:
            # {::Google::Cloud::Dialogflow::V2::ExportAgentResponse ExportAgentResponse}
            #
            # @overload export_agent(request, options = nil)
            #   Pass arguments to `export_agent` via a request object, either of type
            #   {::Google::Cloud::Dialogflow::V2::ExportAgentRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::Dialogflow::V2::ExportAgentRequest, ::Hash]
            #     A request object representing the call parameters. Required. To specify no
            #     parameters, or to keep all the default parameter values, pass an empty Hash.
            #   @param options [::Gapic::CallOptions, ::Hash]
            #     Overrides the default settings for this call, e.g, timeout, retries, etc. Optional.
            #
            # @overload export_agent(parent: nil, agent_uri: nil)
            #   Pass arguments to `export_agent` via keyword arguments. Note that at
            #   least one keyword argument is required. To specify no parameters, or to keep all
            #   the default parameter values, pass an empty Hash as a request object (see above).
            #
            #   @param parent [::String]
            #     Required. The project that the agent to export is associated with.
            #     Format: `projects/<Project ID>`.
            #   @param agent_uri [::String]
            #     Required. The [Google Cloud
            #     Storage](https://cloud.google.com/storage/docs/) URI to export the agent
            #     to. The format of this URI must be `gs://<bucket-name>/<object-name>`. If
            #     left unspecified, the serialized agent is returned inline.
            #
            #     Dialogflow performs a write operation for the Cloud Storage object
            #     on the caller's behalf, so your request authentication must
            #     have write permissions for the object. For more information, see
            #     [Dialogflow access
            #     control](https://cloud.google.com/dialogflow/cx/docs/concept/access-control#storage).
            #
            # @yield [response, operation] Access the result along with the RPC operation
            # @yieldparam response [::Gapic::Operation]
            # @yieldparam operation [::GRPC::ActiveCall::Operation]
            #
            # @return [::Gapic::Operation]
            #
            # @raise [::Google::Cloud::Error] if the RPC is aborted.
            #
            # @example Basic example
            #   require "google/cloud/dialogflow/v2"
            #
            #   # Create a client object. The client can be reused for multiple calls.
            #   client = Google::Cloud::Dialogflow::V2::Agents::Client.new
            #
            #   # Create a request. To set request fields, pass in keyword arguments.
            #   request = Google::Cloud::Dialogflow::V2::ExportAgentRequest.new
            #
            #   # Call the export_agent method.
            #   result = client.export_agent request
            #
            #   # The returned object is of type Gapic::Operation. You can use it to
            #   # check the status of an operation, cancel it, or wait for results.
            #   # Here is how to wait for a response.
            #   result.wait_until_done! timeout: 60
            #   if result.response?
            #     p result.response
            #   else
            #     puts "No response received."
            #   end
            #
            def export_agent request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::Dialogflow::V2::ExportAgentRequest

              # Converts hash and nil to an options object
              options = ::Gapic::CallOptions.new(**options.to_h) if options.respond_to? :to_h

              # Customize the options with defaults
              metadata = @config.rpcs.export_agent.metadata.to_h

              # Set x-goog-api-client and x-goog-user-project headers
              metadata[:"x-goog-api-client"] ||= ::Gapic::Headers.x_goog_api_client \
                lib_name: @config.lib_name, lib_version: @config.lib_version,
                gapic_version: ::Google::Cloud::Dialogflow::V2::VERSION
              metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

              header_params = {}
              if request.parent
                header_params["parent"] = request.parent
              end

              request_params_header = header_params.map { |k, v| "#{k}=#{v}" }.join("&")
              metadata[:"x-goog-request-params"] ||= request_params_header

              options.apply_defaults timeout:      @config.rpcs.export_agent.timeout,
                                     metadata:     metadata,
                                     retry_policy: @config.rpcs.export_agent.retry_policy

              options.apply_defaults timeout:      @config.timeout,
                                     metadata:     @config.metadata,
                                     retry_policy: @config.retry_policy

              @agents_stub.call_rpc :export_agent, request, options: options do |response, operation|
                response = ::Gapic::Operation.new response, @operations_client, options: options
                yield response, operation if block_given?
                return response
              end
            rescue ::GRPC::BadStatus => e
              raise ::Google::Cloud::Error.from_error(e)
            end

            ##
            # Imports the specified agent from a ZIP file.
            #
            # Uploads new intents and entity types without deleting the existing ones.
            # Intents and entity types with the same name are replaced with the new
            # versions from
            # {::Google::Cloud::Dialogflow::V2::ImportAgentRequest ImportAgentRequest}. After
            # the import, the imported draft agent will be trained automatically (unless
            # disabled in agent settings). However, once the import is done, training may
            # not be completed yet. Please call
            # {::Google::Cloud::Dialogflow::V2::Agents::Client#train_agent TrainAgent} and wait for the
            # operation it returns in order to train explicitly.
            #
            # This method is a [long-running
            # operation](https://cloud.google.com/dialogflow/es/docs/how/long-running-operations).
            # The returned `Operation` type has the following method-specific fields:
            #
            # - `metadata`: An empty [Struct
            #   message](https://developers.google.com/protocol-buffers/docs/reference/google.protobuf#struct)
            # - `response`: An [Empty
            #   message](https://developers.google.com/protocol-buffers/docs/reference/google.protobuf#empty)
            #
            # The operation only tracks when importing is complete, not when it is done
            # training.
            #
            # Note: You should always train an agent prior to sending it queries. See the
            # [training
            # documentation](https://cloud.google.com/dialogflow/es/docs/training).
            #
            # @overload import_agent(request, options = nil)
            #   Pass arguments to `import_agent` via a request object, either of type
            #   {::Google::Cloud::Dialogflow::V2::ImportAgentRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::Dialogflow::V2::ImportAgentRequest, ::Hash]
            #     A request object representing the call parameters. Required. To specify no
            #     parameters, or to keep all the default parameter values, pass an empty Hash.
            #   @param options [::Gapic::CallOptions, ::Hash]
            #     Overrides the default settings for this call, e.g, timeout, retries, etc. Optional.
            #
            # @overload import_agent(parent: nil, agent_uri: nil, agent_content: nil)
            #   Pass arguments to `import_agent` via keyword arguments. Note that at
            #   least one keyword argument is required. To specify no parameters, or to keep all
            #   the default parameter values, pass an empty Hash as a request object (see above).
            #
            #   @param parent [::String]
            #     Required. The project that the agent to import is associated with.
            #     Format: `projects/<Project ID>`.
            #   @param agent_uri [::String]
            #     The URI to a Google Cloud Storage file containing the agent to import.
            #     Note: The URI must start with "gs://".
            #
            #     Dialogflow performs a read operation for the Cloud Storage object
            #     on the caller's behalf, so your request authentication must
            #     have read permissions for the object. For more information, see
            #     [Dialogflow access
            #     control](https://cloud.google.com/dialogflow/cx/docs/concept/access-control#storage).
            #   @param agent_content [::String]
            #     Zip compressed raw byte content for agent.
            #
            # @yield [response, operation] Access the result along with the RPC operation
            # @yieldparam response [::Gapic::Operation]
            # @yieldparam operation [::GRPC::ActiveCall::Operation]
            #
            # @return [::Gapic::Operation]
            #
            # @raise [::Google::Cloud::Error] if the RPC is aborted.
            #
            # @example Basic example
            #   require "google/cloud/dialogflow/v2"
            #
            #   # Create a client object. The client can be reused for multiple calls.
            #   client = Google::Cloud::Dialogflow::V2::Agents::Client.new
            #
            #   # Create a request. To set request fields, pass in keyword arguments.
            #   request = Google::Cloud::Dialogflow::V2::ImportAgentRequest.new
            #
            #   # Call the import_agent method.
            #   result = client.import_agent request
            #
            #   # The returned object is of type Gapic::Operation. You can use it to
            #   # check the status of an operation, cancel it, or wait for results.
            #   # Here is how to wait for a response.
            #   result.wait_until_done! timeout: 60
            #   if result.response?
            #     p result.response
            #   else
            #     puts "No response received."
            #   end
            #
            def import_agent request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::Dialogflow::V2::ImportAgentRequest

              # Converts hash and nil to an options object
              options = ::Gapic::CallOptions.new(**options.to_h) if options.respond_to? :to_h

              # Customize the options with defaults
              metadata = @config.rpcs.import_agent.metadata.to_h

              # Set x-goog-api-client and x-goog-user-project headers
              metadata[:"x-goog-api-client"] ||= ::Gapic::Headers.x_goog_api_client \
                lib_name: @config.lib_name, lib_version: @config.lib_version,
                gapic_version: ::Google::Cloud::Dialogflow::V2::VERSION
              metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

              header_params = {}
              if request.parent
                header_params["parent"] = request.parent
              end

              request_params_header = header_params.map { |k, v| "#{k}=#{v}" }.join("&")
              metadata[:"x-goog-request-params"] ||= request_params_header

              options.apply_defaults timeout:      @config.rpcs.import_agent.timeout,
                                     metadata:     metadata,
                                     retry_policy: @config.rpcs.import_agent.retry_policy

              options.apply_defaults timeout:      @config.timeout,
                                     metadata:     @config.metadata,
                                     retry_policy: @config.retry_policy

              @agents_stub.call_rpc :import_agent, request, options: options do |response, operation|
                response = ::Gapic::Operation.new response, @operations_client, options: options
                yield response, operation if block_given?
                return response
              end
            rescue ::GRPC::BadStatus => e
              raise ::Google::Cloud::Error.from_error(e)
            end

            ##
            # Restores the specified agent from a ZIP file.
            #
            # Replaces the current agent version with a new one. All the intents and
            # entity types in the older version are deleted. After the restore, the
            # restored draft agent will be trained automatically (unless disabled in
            # agent settings). However, once the restore is done, training may not be
            # completed yet. Please call
            # {::Google::Cloud::Dialogflow::V2::Agents::Client#train_agent TrainAgent} and wait for the
            # operation it returns in order to train explicitly.
            #
            # This method is a [long-running
            # operation](https://cloud.google.com/dialogflow/es/docs/how/long-running-operations).
            # The returned `Operation` type has the following method-specific fields:
            #
            # - `metadata`: An empty [Struct
            #   message](https://developers.google.com/protocol-buffers/docs/reference/google.protobuf#struct)
            # - `response`: An [Empty
            #   message](https://developers.google.com/protocol-buffers/docs/reference/google.protobuf#empty)
            #
            # The operation only tracks when restoring is complete, not when it is done
            # training.
            #
            # Note: You should always train an agent prior to sending it queries. See the
            # [training
            # documentation](https://cloud.google.com/dialogflow/es/docs/training).
            #
            # @overload restore_agent(request, options = nil)
            #   Pass arguments to `restore_agent` via a request object, either of type
            #   {::Google::Cloud::Dialogflow::V2::RestoreAgentRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::Dialogflow::V2::RestoreAgentRequest, ::Hash]
            #     A request object representing the call parameters. Required. To specify no
            #     parameters, or to keep all the default parameter values, pass an empty Hash.
            #   @param options [::Gapic::CallOptions, ::Hash]
            #     Overrides the default settings for this call, e.g, timeout, retries, etc. Optional.
            #
            # @overload restore_agent(parent: nil, agent_uri: nil, agent_content: nil)
            #   Pass arguments to `restore_agent` via keyword arguments. Note that at
            #   least one keyword argument is required. To specify no parameters, or to keep all
            #   the default parameter values, pass an empty Hash as a request object (see above).
            #
            #   @param parent [::String]
            #     Required. The project that the agent to restore is associated with.
            #     Format: `projects/<Project ID>`.
            #   @param agent_uri [::String]
            #     The URI to a Google Cloud Storage file containing the agent to restore.
            #     Note: The URI must start with "gs://".
            #
            #     Dialogflow performs a read operation for the Cloud Storage object
            #     on the caller's behalf, so your request authentication must
            #     have read permissions for the object. For more information, see
            #     [Dialogflow access
            #     control](https://cloud.google.com/dialogflow/cx/docs/concept/access-control#storage).
            #   @param agent_content [::String]
            #     Zip compressed raw byte content for agent.
            #
            # @yield [response, operation] Access the result along with the RPC operation
            # @yieldparam response [::Gapic::Operation]
            # @yieldparam operation [::GRPC::ActiveCall::Operation]
            #
            # @return [::Gapic::Operation]
            #
            # @raise [::Google::Cloud::Error] if the RPC is aborted.
            #
            # @example Basic example
            #   require "google/cloud/dialogflow/v2"
            #
            #   # Create a client object. The client can be reused for multiple calls.
            #   client = Google::Cloud::Dialogflow::V2::Agents::Client.new
            #
            #   # Create a request. To set request fields, pass in keyword arguments.
            #   request = Google::Cloud::Dialogflow::V2::RestoreAgentRequest.new
            #
            #   # Call the restore_agent method.
            #   result = client.restore_agent request
            #
            #   # The returned object is of type Gapic::Operation. You can use it to
            #   # check the status of an operation, cancel it, or wait for results.
            #   # Here is how to wait for a response.
            #   result.wait_until_done! timeout: 60
            #   if result.response?
            #     p result.response
            #   else
            #     puts "No response received."
            #   end
            #
            def restore_agent request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::Dialogflow::V2::RestoreAgentRequest

              # Converts hash and nil to an options object
              options = ::Gapic::CallOptions.new(**options.to_h) if options.respond_to? :to_h

              # Customize the options with defaults
              metadata = @config.rpcs.restore_agent.metadata.to_h

              # Set x-goog-api-client and x-goog-user-project headers
              metadata[:"x-goog-api-client"] ||= ::Gapic::Headers.x_goog_api_client \
                lib_name: @config.lib_name, lib_version: @config.lib_version,
                gapic_version: ::Google::Cloud::Dialogflow::V2::VERSION
              metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

              header_params = {}
              if request.parent
                header_params["parent"] = request.parent
              end

              request_params_header = header_params.map { |k, v| "#{k}=#{v}" }.join("&")
              metadata[:"x-goog-request-params"] ||= request_params_header

              options.apply_defaults timeout:      @config.rpcs.restore_agent.timeout,
                                     metadata:     metadata,
                                     retry_policy: @config.rpcs.restore_agent.retry_policy

              options.apply_defaults timeout:      @config.timeout,
                                     metadata:     @config.metadata,
                                     retry_policy: @config.retry_policy

              @agents_stub.call_rpc :restore_agent, request, options: options do |response, operation|
                response = ::Gapic::Operation.new response, @operations_client, options: options
                yield response, operation if block_given?
                return response
              end
            rescue ::GRPC::BadStatus => e
              raise ::Google::Cloud::Error.from_error(e)
            end

            ##
            # Gets agent validation result. Agent validation is performed during
            # training time and is updated automatically when training is completed.
            #
            # @overload get_validation_result(request, options = nil)
            #   Pass arguments to `get_validation_result` via a request object, either of type
            #   {::Google::Cloud::Dialogflow::V2::GetValidationResultRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::Dialogflow::V2::GetValidationResultRequest, ::Hash]
            #     A request object representing the call parameters. Required. To specify no
            #     parameters, or to keep all the default parameter values, pass an empty Hash.
            #   @param options [::Gapic::CallOptions, ::Hash]
            #     Overrides the default settings for this call, e.g, timeout, retries, etc. Optional.
            #
            # @overload get_validation_result(parent: nil, language_code: nil)
            #   Pass arguments to `get_validation_result` via keyword arguments. Note that at
            #   least one keyword argument is required. To specify no parameters, or to keep all
            #   the default parameter values, pass an empty Hash as a request object (see above).
            #
            #   @param parent [::String]
            #     Required. The project that the agent is associated with.
            #     Format: `projects/<Project ID>`.
            #   @param language_code [::String]
            #     Optional. The language for which you want a validation result. If not
            #     specified, the agent's default language is used. [Many
            #     languages](https://cloud.google.com/dialogflow/docs/reference/language)
            #     are supported. Note: languages must be enabled in the agent before they can
            #     be used.
            #
            # @yield [response, operation] Access the result along with the RPC operation
            # @yieldparam response [::Google::Cloud::Dialogflow::V2::ValidationResult]
            # @yieldparam operation [::GRPC::ActiveCall::Operation]
            #
            # @return [::Google::Cloud::Dialogflow::V2::ValidationResult]
            #
            # @raise [::Google::Cloud::Error] if the RPC is aborted.
            #
            # @example Basic example
            #   require "google/cloud/dialogflow/v2"
            #
            #   # Create a client object. The client can be reused for multiple calls.
            #   client = Google::Cloud::Dialogflow::V2::Agents::Client.new
            #
            #   # Create a request. To set request fields, pass in keyword arguments.
            #   request = Google::Cloud::Dialogflow::V2::GetValidationResultRequest.new
            #
            #   # Call the get_validation_result method.
            #   result = client.get_validation_result request
            #
            #   # The returned object is of type Google::Cloud::Dialogflow::V2::ValidationResult.
            #   p result
            #
            def get_validation_result request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::Dialogflow::V2::GetValidationResultRequest

              # Converts hash and nil to an options object
              options = ::Gapic::CallOptions.new(**options.to_h) if options.respond_to? :to_h

              # Customize the options with defaults
              metadata = @config.rpcs.get_validation_result.metadata.to_h

              # Set x-goog-api-client and x-goog-user-project headers
              metadata[:"x-goog-api-client"] ||= ::Gapic::Headers.x_goog_api_client \
                lib_name: @config.lib_name, lib_version: @config.lib_version,
                gapic_version: ::Google::Cloud::Dialogflow::V2::VERSION
              metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

              header_params = {}
              if request.parent
                header_params["parent"] = request.parent
              end

              request_params_header = header_params.map { |k, v| "#{k}=#{v}" }.join("&")
              metadata[:"x-goog-request-params"] ||= request_params_header

              options.apply_defaults timeout:      @config.rpcs.get_validation_result.timeout,
                                     metadata:     metadata,
                                     retry_policy: @config.rpcs.get_validation_result.retry_policy

              options.apply_defaults timeout:      @config.timeout,
                                     metadata:     @config.metadata,
                                     retry_policy: @config.retry_policy

              @agents_stub.call_rpc :get_validation_result, request, options: options do |response, operation|
                yield response, operation if block_given?
                return response
              end
            rescue ::GRPC::BadStatus => e
              raise ::Google::Cloud::Error.from_error(e)
            end

            ##
            # Configuration class for the Agents API.
            #
            # This class represents the configuration for Agents,
            # providing control over timeouts, retry behavior, logging, transport
            # parameters, and other low-level controls. Certain parameters can also be
            # applied individually to specific RPCs. See
            # {::Google::Cloud::Dialogflow::V2::Agents::Client::Configuration::Rpcs}
            # for a list of RPCs that can be configured independently.
            #
            # Configuration can be applied globally to all clients, or to a single client
            # on construction.
            #
            # @example
            #
            #   # Modify the global config, setting the timeout for
            #   # get_agent to 20 seconds,
            #   # and all remaining timeouts to 10 seconds.
            #   ::Google::Cloud::Dialogflow::V2::Agents::Client.configure do |config|
            #     config.timeout = 10.0
            #     config.rpcs.get_agent.timeout = 20.0
            #   end
            #
            #   # Apply the above configuration only to a new client.
            #   client = ::Google::Cloud::Dialogflow::V2::Agents::Client.new do |config|
            #     config.timeout = 10.0
            #     config.rpcs.get_agent.timeout = 20.0
            #   end
            #
            # @!attribute [rw] endpoint
            #   The hostname or hostname:port of the service endpoint.
            #   Defaults to `"dialogflow.googleapis.com"`.
            #   @return [::String]
            # @!attribute [rw] credentials
            #   Credentials to send with calls. You may provide any of the following types:
            #    *  (`String`) The path to a service account key file in JSON format
            #    *  (`Hash`) A service account key as a Hash
            #    *  (`Google::Auth::Credentials`) A googleauth credentials object
            #       (see the [googleauth docs](https://rubydoc.info/gems/googleauth/Google/Auth/Credentials))
            #    *  (`Signet::OAuth2::Client`) A signet oauth2 client object
            #       (see the [signet docs](https://rubydoc.info/gems/signet/Signet/OAuth2/Client))
            #    *  (`GRPC::Core::Channel`) a gRPC channel with included credentials
            #    *  (`GRPC::Core::ChannelCredentials`) a gRPC credentails object
            #    *  (`nil`) indicating no credentials
            #   @return [::Object]
            # @!attribute [rw] scope
            #   The OAuth scopes
            #   @return [::Array<::String>]
            # @!attribute [rw] lib_name
            #   The library name as recorded in instrumentation and logging
            #   @return [::String]
            # @!attribute [rw] lib_version
            #   The library version as recorded in instrumentation and logging
            #   @return [::String]
            # @!attribute [rw] channel_args
            #   Extra parameters passed to the gRPC channel. Note: this is ignored if a
            #   `GRPC::Core::Channel` object is provided as the credential.
            #   @return [::Hash]
            # @!attribute [rw] interceptors
            #   An array of interceptors that are run before calls are executed.
            #   @return [::Array<::GRPC::ClientInterceptor>]
            # @!attribute [rw] timeout
            #   The call timeout in seconds.
            #   @return [::Numeric]
            # @!attribute [rw] metadata
            #   Additional gRPC headers to be sent with the call.
            #   @return [::Hash{::Symbol=>::String}]
            # @!attribute [rw] retry_policy
            #   The retry policy. The value is a hash with the following keys:
            #    *  `:initial_delay` (*type:* `Numeric`) - The initial delay in seconds.
            #    *  `:max_delay` (*type:* `Numeric`) - The max delay in seconds.
            #    *  `:multiplier` (*type:* `Numeric`) - The incremental backoff multiplier.
            #    *  `:retry_codes` (*type:* `Array<String>`) - The error codes that should
            #       trigger a retry.
            #   @return [::Hash]
            # @!attribute [rw] quota_project
            #   A separate project against which to charge quota.
            #   @return [::String]
            #
            class Configuration
              extend ::Gapic::Config

              config_attr :endpoint,      "dialogflow.googleapis.com", ::String
              config_attr :credentials,   nil do |value|
                allowed = [::String, ::Hash, ::Proc, ::Symbol, ::Google::Auth::Credentials, ::Signet::OAuth2::Client, nil]
                allowed += [::GRPC::Core::Channel, ::GRPC::Core::ChannelCredentials] if defined? ::GRPC
                allowed.any? { |klass| klass === value }
              end
              config_attr :scope,         nil, ::String, ::Array, nil
              config_attr :lib_name,      nil, ::String, nil
              config_attr :lib_version,   nil, ::String, nil
              config_attr(:channel_args,  { "grpc.service_config_disable_resolution" => 1 }, ::Hash, nil)
              config_attr :interceptors,  nil, ::Array, nil
              config_attr :timeout,       nil, ::Numeric, nil
              config_attr :metadata,      nil, ::Hash, nil
              config_attr :retry_policy,  nil, ::Hash, ::Proc, nil
              config_attr :quota_project, nil, ::String, nil

              # @private
              def initialize parent_config = nil
                @parent_config = parent_config unless parent_config.nil?

                yield self if block_given?
              end

              ##
              # Configurations for individual RPCs
              # @return [Rpcs]
              #
              def rpcs
                @rpcs ||= begin
                  parent_rpcs = nil
                  parent_rpcs = @parent_config.rpcs if defined?(@parent_config) && @parent_config.respond_to?(:rpcs)
                  Rpcs.new parent_rpcs
                end
              end

              ##
              # Configuration RPC class for the Agents API.
              #
              # Includes fields providing the configuration for each RPC in this service.
              # Each configuration object is of type `Gapic::Config::Method` and includes
              # the following configuration fields:
              #
              #  *  `timeout` (*type:* `Numeric`) - The call timeout in seconds
              #  *  `metadata` (*type:* `Hash{Symbol=>String}`) - Additional gRPC headers
              #  *  `retry_policy (*type:* `Hash`) - The retry policy. The policy fields
              #     include the following keys:
              #      *  `:initial_delay` (*type:* `Numeric`) - The initial delay in seconds.
              #      *  `:max_delay` (*type:* `Numeric`) - The max delay in seconds.
              #      *  `:multiplier` (*type:* `Numeric`) - The incremental backoff multiplier.
              #      *  `:retry_codes` (*type:* `Array<String>`) - The error codes that should
              #         trigger a retry.
              #
              class Rpcs
                ##
                # RPC-specific configuration for `get_agent`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :get_agent
                ##
                # RPC-specific configuration for `set_agent`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :set_agent
                ##
                # RPC-specific configuration for `delete_agent`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :delete_agent
                ##
                # RPC-specific configuration for `search_agents`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :search_agents
                ##
                # RPC-specific configuration for `train_agent`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :train_agent
                ##
                # RPC-specific configuration for `export_agent`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :export_agent
                ##
                # RPC-specific configuration for `import_agent`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :import_agent
                ##
                # RPC-specific configuration for `restore_agent`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :restore_agent
                ##
                # RPC-specific configuration for `get_validation_result`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :get_validation_result

                # @private
                def initialize parent_rpcs = nil
                  get_agent_config = parent_rpcs.get_agent if parent_rpcs.respond_to? :get_agent
                  @get_agent = ::Gapic::Config::Method.new get_agent_config
                  set_agent_config = parent_rpcs.set_agent if parent_rpcs.respond_to? :set_agent
                  @set_agent = ::Gapic::Config::Method.new set_agent_config
                  delete_agent_config = parent_rpcs.delete_agent if parent_rpcs.respond_to? :delete_agent
                  @delete_agent = ::Gapic::Config::Method.new delete_agent_config
                  search_agents_config = parent_rpcs.search_agents if parent_rpcs.respond_to? :search_agents
                  @search_agents = ::Gapic::Config::Method.new search_agents_config
                  train_agent_config = parent_rpcs.train_agent if parent_rpcs.respond_to? :train_agent
                  @train_agent = ::Gapic::Config::Method.new train_agent_config
                  export_agent_config = parent_rpcs.export_agent if parent_rpcs.respond_to? :export_agent
                  @export_agent = ::Gapic::Config::Method.new export_agent_config
                  import_agent_config = parent_rpcs.import_agent if parent_rpcs.respond_to? :import_agent
                  @import_agent = ::Gapic::Config::Method.new import_agent_config
                  restore_agent_config = parent_rpcs.restore_agent if parent_rpcs.respond_to? :restore_agent
                  @restore_agent = ::Gapic::Config::Method.new restore_agent_config
                  get_validation_result_config = parent_rpcs.get_validation_result if parent_rpcs.respond_to? :get_validation_result
                  @get_validation_result = ::Gapic::Config::Method.new get_validation_result_config

                  yield self if block_given?
                end
              end
            end
          end
        end
      end
    end
  end
end