# frozen_string_literal: true

# Copyright 2021 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/datafusion/v1beta1/v1beta1_pb"

module Google
  module Cloud
    module DataFusion
      module V1beta1
        module DataFusion
          ##
          # Client for the DataFusion service.
          #
          # Service for creating and managing Data Fusion instances.
          # Data Fusion enables ETL developers to build code-free, data integration
          # pipelines via a point-and-click UI.
          #
          class Client
            include Paths

            # @private
            attr_reader :data_fusion_stub

            ##
            # Configure the DataFusion Client class.
            #
            # See {::Google::Cloud::DataFusion::V1beta1::DataFusion::Client::Configuration}
            # for a description of the configuration fields.
            #
            # @example
            #
            #   # Modify the configuration for all DataFusion clients
            #   ::Google::Cloud::DataFusion::V1beta1::DataFusion::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", "DataFusion", "V1beta1"]
                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
              end
              yield @configure if block_given?
              @configure
            end

            ##
            # Configure the DataFusion 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::DataFusion::V1beta1::DataFusion::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 DataFusion client object.
            #
            # @example
            #
            #   # Create a client using the default configuration
            #   client = ::Google::Cloud::DataFusion::V1beta1::DataFusion::Client.new
            #
            #   # Create a client using a custom configuration
            #   client = ::Google::Cloud::DataFusion::V1beta1::DataFusion::Client.new do |config|
            #     config.timeout = 10.0
            #   end
            #
            # @yield [config] Configure the DataFusion 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/datafusion/v1beta1/v1beta1_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.endpoint = @config.endpoint
              end

              @data_fusion_stub = ::Gapic::ServiceStub.new(
                ::Google::Cloud::DataFusion::V1beta1::DataFusion::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::DataFusion::V1beta1::DataFusion::Operations]
            #
            attr_reader :operations_client

            # Service calls

            ##
            # Lists possible versions for Data Fusion instances in the specified project
            # and location.
            #
            # @overload list_available_versions(request, options = nil)
            #   Pass arguments to `list_available_versions` via a request object, either of type
            #   {::Google::Cloud::DataFusion::V1beta1::ListAvailableVersionsRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::DataFusion::V1beta1::ListAvailableVersionsRequest, ::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 list_available_versions(parent: nil, page_size: nil, page_token: nil, latest_patch_only: nil)
            #   Pass arguments to `list_available_versions` 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 and location for which to retrieve instance
            #     information in the format projects/\\{project}/locations/\\{location}.
            #   @param page_size [::Integer]
            #     The maximum number of items to return.
            #   @param page_token [::String]
            #     The next_page_token value to use if there are additional
            #     results to retrieve for this list request.
            #   @param latest_patch_only [::Boolean]
            #     Whether or not to return the latest patch of every available minor version.
            #     If true, only the latest patch will be returned. Ex. if allowed versions is
            #     [6.1.1, 6.1.2, 6.2.0] then response will be [6.1.2, 6.2.0]
            #
            # @yield [response, operation] Access the result along with the RPC operation
            # @yieldparam response [::Gapic::PagedEnumerable<::Google::Cloud::DataFusion::V1beta1::Version>]
            # @yieldparam operation [::GRPC::ActiveCall::Operation]
            #
            # @return [::Gapic::PagedEnumerable<::Google::Cloud::DataFusion::V1beta1::Version>]
            #
            # @raise [::Google::Cloud::Error] if the RPC is aborted.
            #
            def list_available_versions request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::DataFusion::V1beta1::ListAvailableVersionsRequest

              # 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.list_available_versions.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::DataFusion::V1beta1::VERSION
              metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

              header_params = {
                "parent" => request.parent
              }
              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.list_available_versions.timeout,
                                     metadata:     metadata,
                                     retry_policy: @config.rpcs.list_available_versions.retry_policy

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

              @data_fusion_stub.call_rpc :list_available_versions, request, options: options do |response, operation|
                response = ::Gapic::PagedEnumerable.new @data_fusion_stub, :list_available_versions, 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

            ##
            # Lists Data Fusion instances in the specified project and location.
            #
            # @overload list_instances(request, options = nil)
            #   Pass arguments to `list_instances` via a request object, either of type
            #   {::Google::Cloud::DataFusion::V1beta1::ListInstancesRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::DataFusion::V1beta1::ListInstancesRequest, ::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 list_instances(parent: nil, page_size: nil, page_token: nil, filter: nil, order_by: nil)
            #   Pass arguments to `list_instances` 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]
            #     The project and location for which to retrieve instance information
            #     in the format projects/\\{project}/locations/\\{location}. If the location is
            #     specified as '-' (wildcard), then all regions available to the project
            #     are queried, and the results are aggregated.
            #   @param page_size [::Integer]
            #     The maximum number of items to return.
            #   @param page_token [::String]
            #     The next_page_token value to use if there are additional
            #     results to retrieve for this list request.
            #   @param filter [::String]
            #     List filter.
            #   @param order_by [::String]
            #     Sort results. Supported values are "name", "name desc",  or "" (unsorted).
            #
            # @yield [response, operation] Access the result along with the RPC operation
            # @yieldparam response [::Gapic::PagedEnumerable<::Google::Cloud::DataFusion::V1beta1::Instance>]
            # @yieldparam operation [::GRPC::ActiveCall::Operation]
            #
            # @return [::Gapic::PagedEnumerable<::Google::Cloud::DataFusion::V1beta1::Instance>]
            #
            # @raise [::Google::Cloud::Error] if the RPC is aborted.
            #
            def list_instances request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::DataFusion::V1beta1::ListInstancesRequest

              # 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.list_instances.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::DataFusion::V1beta1::VERSION
              metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

              header_params = {
                "parent" => request.parent
              }
              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.list_instances.timeout,
                                     metadata:     metadata,
                                     retry_policy: @config.rpcs.list_instances.retry_policy

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

              @data_fusion_stub.call_rpc :list_instances, request, options: options do |response, operation|
                response = ::Gapic::PagedEnumerable.new @data_fusion_stub, :list_instances, 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

            ##
            # Gets details of a single Data Fusion instance.
            #
            # @overload get_instance(request, options = nil)
            #   Pass arguments to `get_instance` via a request object, either of type
            #   {::Google::Cloud::DataFusion::V1beta1::GetInstanceRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::DataFusion::V1beta1::GetInstanceRequest, ::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_instance(name: nil)
            #   Pass arguments to `get_instance` 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 name [::String]
            #     The instance resource name in the format
            #     projects/\\{project}/locations/\\{location}/instances/\\{instance}.
            #
            # @yield [response, operation] Access the result along with the RPC operation
            # @yieldparam response [::Google::Cloud::DataFusion::V1beta1::Instance]
            # @yieldparam operation [::GRPC::ActiveCall::Operation]
            #
            # @return [::Google::Cloud::DataFusion::V1beta1::Instance]
            #
            # @raise [::Google::Cloud::Error] if the RPC is aborted.
            #
            def get_instance request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::DataFusion::V1beta1::GetInstanceRequest

              # 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_instance.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::DataFusion::V1beta1::VERSION
              metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

              header_params = {
                "name" => request.name
              }
              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_instance.timeout,
                                     metadata:     metadata,
                                     retry_policy: @config.rpcs.get_instance.retry_policy

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

              @data_fusion_stub.call_rpc :get_instance, 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 a new Data Fusion instance in the specified project and location.
            #
            # @overload create_instance(request, options = nil)
            #   Pass arguments to `create_instance` via a request object, either of type
            #   {::Google::Cloud::DataFusion::V1beta1::CreateInstanceRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::DataFusion::V1beta1::CreateInstanceRequest, ::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 create_instance(parent: nil, instance_id: nil, instance: nil)
            #   Pass arguments to `create_instance` 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]
            #     The instance's project and location in the format
            #     projects/\\{project}/locations/\\{location}.
            #   @param instance_id [::String]
            #     The name of the instance to create.
            #   @param instance [::Google::Cloud::DataFusion::V1beta1::Instance, ::Hash]
            #     An instance resource.
            #
            # @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.
            #
            def create_instance request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::DataFusion::V1beta1::CreateInstanceRequest

              # 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.create_instance.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::DataFusion::V1beta1::VERSION
              metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

              header_params = {
                "parent" => request.parent
              }
              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.create_instance.timeout,
                                     metadata:     metadata,
                                     retry_policy: @config.rpcs.create_instance.retry_policy

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

              @data_fusion_stub.call_rpc :create_instance, 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

            ##
            # Deletes a single Data Fusion instance.
            #
            # @overload delete_instance(request, options = nil)
            #   Pass arguments to `delete_instance` via a request object, either of type
            #   {::Google::Cloud::DataFusion::V1beta1::DeleteInstanceRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::DataFusion::V1beta1::DeleteInstanceRequest, ::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_instance(name: nil)
            #   Pass arguments to `delete_instance` 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 name [::String]
            #     The instance resource name in the format
            #     projects/\\{project}/locations/\\{location}/instances/\\{instance}
            #
            # @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.
            #
            def delete_instance request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::DataFusion::V1beta1::DeleteInstanceRequest

              # 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_instance.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::DataFusion::V1beta1::VERSION
              metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

              header_params = {
                "name" => request.name
              }
              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_instance.timeout,
                                     metadata:     metadata,
                                     retry_policy: @config.rpcs.delete_instance.retry_policy

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

              @data_fusion_stub.call_rpc :delete_instance, 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

            ##
            # Updates a single Data Fusion instance.
            #
            # @overload update_instance(request, options = nil)
            #   Pass arguments to `update_instance` via a request object, either of type
            #   {::Google::Cloud::DataFusion::V1beta1::UpdateInstanceRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::DataFusion::V1beta1::UpdateInstanceRequest, ::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 update_instance(instance: nil, update_mask: nil)
            #   Pass arguments to `update_instance` 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 instance [::Google::Cloud::DataFusion::V1beta1::Instance, ::Hash]
            #     The instance resource that replaces the resource on the server. Currently,
            #     Data Fusion only allows replacing labels, options, and stack driver
            #     settings. All other fields will be ignored.
            #   @param update_mask [::Google::Protobuf::FieldMask, ::Hash]
            #     Field mask is used to specify the fields that the update will overwrite
            #     in an instance resource. The fields specified in the update_mask are
            #     relative to the resource, not the full request.
            #     A field will be overwritten if it is in the mask.
            #     If the user does not provide a mask, all the supported fields (labels and
            #     options currently) will be overwritten.
            #
            # @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.
            #
            def update_instance request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::DataFusion::V1beta1::UpdateInstanceRequest

              # 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.update_instance.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::DataFusion::V1beta1::VERSION
              metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

              header_params = {
                "instance.name" => request.instance.name
              }
              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.update_instance.timeout,
                                     metadata:     metadata,
                                     retry_policy: @config.rpcs.update_instance.retry_policy

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

              @data_fusion_stub.call_rpc :update_instance, 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

            ##
            # Restart a single Data Fusion instance.
            # At the end of an operation instance is fully restarted.
            #
            # @overload restart_instance(request, options = nil)
            #   Pass arguments to `restart_instance` via a request object, either of type
            #   {::Google::Cloud::DataFusion::V1beta1::RestartInstanceRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::DataFusion::V1beta1::RestartInstanceRequest, ::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 restart_instance(name: nil)
            #   Pass arguments to `restart_instance` 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 name [::String]
            #     Name of the Data Fusion instance which need to be restarted in the form of
            #     projects/\\{project}/locations/\\{location}/instances/\\{instance}
            #
            # @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.
            #
            def restart_instance request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::DataFusion::V1beta1::RestartInstanceRequest

              # 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.restart_instance.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::DataFusion::V1beta1::VERSION
              metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

              header_params = {
                "name" => request.name
              }
              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.restart_instance.timeout,
                                     metadata:     metadata,
                                     retry_policy: @config.rpcs.restart_instance.retry_policy

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

              @data_fusion_stub.call_rpc :restart_instance, 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

            ##
            # Upgrade a single Data Fusion instance.
            # At the end of an operation instance is fully upgraded.
            #
            # @overload upgrade_instance(request, options = nil)
            #   Pass arguments to `upgrade_instance` via a request object, either of type
            #   {::Google::Cloud::DataFusion::V1beta1::UpgradeInstanceRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::DataFusion::V1beta1::UpgradeInstanceRequest, ::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 upgrade_instance(name: nil)
            #   Pass arguments to `upgrade_instance` 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 name [::String]
            #     Name of the Data Fusion instance which need to be upgraded in the form of
            #     projects/\\{project}/locations/\\{location}/instances/\\{instance}
            #     Instance will be upgraded with the latest stable version of the Data
            #     Fusion.
            #
            # @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.
            #
            def upgrade_instance request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::DataFusion::V1beta1::UpgradeInstanceRequest

              # 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.upgrade_instance.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::DataFusion::V1beta1::VERSION
              metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

              header_params = {
                "name" => request.name
              }
              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.upgrade_instance.timeout,
                                     metadata:     metadata,
                                     retry_policy: @config.rpcs.upgrade_instance.retry_policy

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

              @data_fusion_stub.call_rpc :upgrade_instance, 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

            ##
            # Remove IAM policy that is currently set on the given resource.
            #
            # @overload remove_iam_policy(request, options = nil)
            #   Pass arguments to `remove_iam_policy` via a request object, either of type
            #   {::Google::Cloud::DataFusion::V1beta1::RemoveIamPolicyRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::DataFusion::V1beta1::RemoveIamPolicyRequest, ::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 remove_iam_policy(resource: nil)
            #   Pass arguments to `remove_iam_policy` 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 resource [::String]
            #     The resource on which IAM policy to be removed is attached to.
            #
            # @yield [response, operation] Access the result along with the RPC operation
            # @yieldparam response [::Google::Cloud::DataFusion::V1beta1::RemoveIamPolicyResponse]
            # @yieldparam operation [::GRPC::ActiveCall::Operation]
            #
            # @return [::Google::Cloud::DataFusion::V1beta1::RemoveIamPolicyResponse]
            #
            # @raise [::Google::Cloud::Error] if the RPC is aborted.
            #
            def remove_iam_policy request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::DataFusion::V1beta1::RemoveIamPolicyRequest

              # 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.remove_iam_policy.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::DataFusion::V1beta1::VERSION
              metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

              header_params = {
                "resource" => request.resource
              }
              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.remove_iam_policy.timeout,
                                     metadata:     metadata,
                                     retry_policy: @config.rpcs.remove_iam_policy.retry_policy

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

              @data_fusion_stub.call_rpc :remove_iam_policy, 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

            ##
            # List namespaces in a given instance
            #
            # @overload list_namespaces(request, options = nil)
            #   Pass arguments to `list_namespaces` via a request object, either of type
            #   {::Google::Cloud::DataFusion::V1beta1::ListNamespacesRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::DataFusion::V1beta1::ListNamespacesRequest, ::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 list_namespaces(parent: nil, page_size: nil, page_token: nil, view: nil)
            #   Pass arguments to `list_namespaces` 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 instance to list its namespaces.
            #   @param page_size [::Integer]
            #     The maximum number of items to return.
            #   @param page_token [::String]
            #     The next_page_token value to use if there are additional
            #     results to retrieve for this list request.
            #   @param view [::Google::Cloud::DataFusion::V1beta1::NamespaceView]
            #     By default, only basic information about a namespace is returned
            #     (e.g. name). When `NAMESPACE_VIEW_FULL` is specified, additional
            #     information associated with a namespace gets returned
            #     (e.g. IAM policy set on the namespace)
            #
            # @yield [response, operation] Access the result along with the RPC operation
            # @yieldparam response [::Gapic::PagedEnumerable<::Google::Cloud::DataFusion::V1beta1::Namespace>]
            # @yieldparam operation [::GRPC::ActiveCall::Operation]
            #
            # @return [::Gapic::PagedEnumerable<::Google::Cloud::DataFusion::V1beta1::Namespace>]
            #
            # @raise [::Google::Cloud::Error] if the RPC is aborted.
            #
            def list_namespaces request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::DataFusion::V1beta1::ListNamespacesRequest

              # 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.list_namespaces.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::DataFusion::V1beta1::VERSION
              metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

              header_params = {
                "parent" => request.parent
              }
              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.list_namespaces.timeout,
                                     metadata:     metadata,
                                     retry_policy: @config.rpcs.list_namespaces.retry_policy

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

              @data_fusion_stub.call_rpc :list_namespaces, request, options: options do |response, operation|
                response = ::Gapic::PagedEnumerable.new @data_fusion_stub, :list_namespaces, 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

            ##
            # Add DNS peering on the given resource.
            #
            # @overload add_dns_peering(request, options = nil)
            #   Pass arguments to `add_dns_peering` via a request object, either of type
            #   {::Google::Cloud::DataFusion::V1beta1::AddDnsPeeringRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::DataFusion::V1beta1::AddDnsPeeringRequest, ::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 add_dns_peering(parent: nil, dns_peering: nil)
            #   Pass arguments to `add_dns_peering` 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]
            #     The resource on which DNS peering will be created.
            #   @param dns_peering [::Google::Cloud::DataFusion::V1beta1::DnsPeering, ::Hash]
            #     Dns peering config.
            #
            # @yield [response, operation] Access the result along with the RPC operation
            # @yieldparam response [::Google::Cloud::DataFusion::V1beta1::AddDnsPeeringResponse]
            # @yieldparam operation [::GRPC::ActiveCall::Operation]
            #
            # @return [::Google::Cloud::DataFusion::V1beta1::AddDnsPeeringResponse]
            #
            # @raise [::Google::Cloud::Error] if the RPC is aborted.
            #
            def add_dns_peering request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::DataFusion::V1beta1::AddDnsPeeringRequest

              # 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.add_dns_peering.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::DataFusion::V1beta1::VERSION
              metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

              header_params = {
                "parent" => request.parent
              }
              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.add_dns_peering.timeout,
                                     metadata:     metadata,
                                     retry_policy: @config.rpcs.add_dns_peering.retry_policy

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

              @data_fusion_stub.call_rpc :add_dns_peering, 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

            ##
            # Remove DNS peering on the given resource.
            #
            # @overload remove_dns_peering(request, options = nil)
            #   Pass arguments to `remove_dns_peering` via a request object, either of type
            #   {::Google::Cloud::DataFusion::V1beta1::RemoveDnsPeeringRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::DataFusion::V1beta1::RemoveDnsPeeringRequest, ::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 remove_dns_peering(parent: nil, zone: nil)
            #   Pass arguments to `remove_dns_peering` 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]
            #     The resource on which DNS peering will be removed.
            #   @param zone [::String]
            #     Required. The zone to be removed.
            #
            # @yield [response, operation] Access the result along with the RPC operation
            # @yieldparam response [::Google::Cloud::DataFusion::V1beta1::RemoveDnsPeeringResponse]
            # @yieldparam operation [::GRPC::ActiveCall::Operation]
            #
            # @return [::Google::Cloud::DataFusion::V1beta1::RemoveDnsPeeringResponse]
            #
            # @raise [::Google::Cloud::Error] if the RPC is aborted.
            #
            def remove_dns_peering request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::DataFusion::V1beta1::RemoveDnsPeeringRequest

              # 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.remove_dns_peering.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::DataFusion::V1beta1::VERSION
              metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

              header_params = {
                "parent" => request.parent
              }
              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.remove_dns_peering.timeout,
                                     metadata:     metadata,
                                     retry_policy: @config.rpcs.remove_dns_peering.retry_policy

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

              @data_fusion_stub.call_rpc :remove_dns_peering, 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

            ##
            # List DNS peering for a given resource.
            #
            # @overload list_dns_peerings(request, options = nil)
            #   Pass arguments to `list_dns_peerings` via a request object, either of type
            #   {::Google::Cloud::DataFusion::V1beta1::ListDnsPeeringsRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::DataFusion::V1beta1::ListDnsPeeringsRequest, ::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 list_dns_peerings(parent: nil, page_size: nil, page_token: nil)
            #   Pass arguments to `list_dns_peerings` 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 resource on which dns peering will be listed.
            #   @param page_size [::Integer]
            #     The maximum number of items to return.
            #   @param page_token [::String]
            #     The next_page_token value to use if there are additional
            #     results to retrieve for this list request.
            #
            # @yield [response, operation] Access the result along with the RPC operation
            # @yieldparam response [::Gapic::PagedEnumerable<::Google::Cloud::DataFusion::V1beta1::DnsPeering>]
            # @yieldparam operation [::GRPC::ActiveCall::Operation]
            #
            # @return [::Gapic::PagedEnumerable<::Google::Cloud::DataFusion::V1beta1::DnsPeering>]
            #
            # @raise [::Google::Cloud::Error] if the RPC is aborted.
            #
            def list_dns_peerings request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::DataFusion::V1beta1::ListDnsPeeringsRequest

              # 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.list_dns_peerings.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::DataFusion::V1beta1::VERSION
              metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

              header_params = {
                "parent" => request.parent
              }
              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.list_dns_peerings.timeout,
                                     metadata:     metadata,
                                     retry_policy: @config.rpcs.list_dns_peerings.retry_policy

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

              @data_fusion_stub.call_rpc :list_dns_peerings, request, options: options do |response, operation|
                response = ::Gapic::PagedEnumerable.new @data_fusion_stub, :list_dns_peerings, 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

            ##
            # Configuration class for the DataFusion API.
            #
            # This class represents the configuration for DataFusion,
            # 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::DataFusion::V1beta1::DataFusion::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
            #   # list_available_versions to 20 seconds,
            #   # and all remaining timeouts to 10 seconds.
            #   ::Google::Cloud::DataFusion::V1beta1::DataFusion::Client.configure do |config|
            #     config.timeout = 10.0
            #     config.rpcs.list_available_versions.timeout = 20.0
            #   end
            #
            #   # Apply the above configuration only to a new client.
            #   client = ::Google::Cloud::DataFusion::V1beta1::DataFusion::Client.new do |config|
            #     config.timeout = 10.0
            #     config.rpcs.list_available_versions.timeout = 20.0
            #   end
            #
            # @!attribute [rw] endpoint
            #   The hostname or hostname:port of the service endpoint.
            #   Defaults to `"datafusion.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://googleapis.dev/ruby/googleauth/latest/index.html))
            #    *  (`Signet::OAuth2::Client`) A signet oauth2 client object
            #       (see the [signet docs](https://googleapis.dev/ruby/signet/latest/Signet/OAuth2/Client.html))
            #    *  (`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,      "datafusion.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 DataFusion 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 `list_available_versions`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :list_available_versions
                ##
                # RPC-specific configuration for `list_instances`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :list_instances
                ##
                # RPC-specific configuration for `get_instance`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :get_instance
                ##
                # RPC-specific configuration for `create_instance`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :create_instance
                ##
                # RPC-specific configuration for `delete_instance`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :delete_instance
                ##
                # RPC-specific configuration for `update_instance`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :update_instance
                ##
                # RPC-specific configuration for `restart_instance`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :restart_instance
                ##
                # RPC-specific configuration for `upgrade_instance`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :upgrade_instance
                ##
                # RPC-specific configuration for `remove_iam_policy`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :remove_iam_policy
                ##
                # RPC-specific configuration for `list_namespaces`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :list_namespaces
                ##
                # RPC-specific configuration for `add_dns_peering`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :add_dns_peering
                ##
                # RPC-specific configuration for `remove_dns_peering`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :remove_dns_peering
                ##
                # RPC-specific configuration for `list_dns_peerings`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :list_dns_peerings

                # @private
                def initialize parent_rpcs = nil
                  list_available_versions_config = parent_rpcs.list_available_versions if parent_rpcs.respond_to? :list_available_versions
                  @list_available_versions = ::Gapic::Config::Method.new list_available_versions_config
                  list_instances_config = parent_rpcs.list_instances if parent_rpcs.respond_to? :list_instances
                  @list_instances = ::Gapic::Config::Method.new list_instances_config
                  get_instance_config = parent_rpcs.get_instance if parent_rpcs.respond_to? :get_instance
                  @get_instance = ::Gapic::Config::Method.new get_instance_config
                  create_instance_config = parent_rpcs.create_instance if parent_rpcs.respond_to? :create_instance
                  @create_instance = ::Gapic::Config::Method.new create_instance_config
                  delete_instance_config = parent_rpcs.delete_instance if parent_rpcs.respond_to? :delete_instance
                  @delete_instance = ::Gapic::Config::Method.new delete_instance_config
                  update_instance_config = parent_rpcs.update_instance if parent_rpcs.respond_to? :update_instance
                  @update_instance = ::Gapic::Config::Method.new update_instance_config
                  restart_instance_config = parent_rpcs.restart_instance if parent_rpcs.respond_to? :restart_instance
                  @restart_instance = ::Gapic::Config::Method.new restart_instance_config
                  upgrade_instance_config = parent_rpcs.upgrade_instance if parent_rpcs.respond_to? :upgrade_instance
                  @upgrade_instance = ::Gapic::Config::Method.new upgrade_instance_config
                  remove_iam_policy_config = parent_rpcs.remove_iam_policy if parent_rpcs.respond_to? :remove_iam_policy
                  @remove_iam_policy = ::Gapic::Config::Method.new remove_iam_policy_config
                  list_namespaces_config = parent_rpcs.list_namespaces if parent_rpcs.respond_to? :list_namespaces
                  @list_namespaces = ::Gapic::Config::Method.new list_namespaces_config
                  add_dns_peering_config = parent_rpcs.add_dns_peering if parent_rpcs.respond_to? :add_dns_peering
                  @add_dns_peering = ::Gapic::Config::Method.new add_dns_peering_config
                  remove_dns_peering_config = parent_rpcs.remove_dns_peering if parent_rpcs.respond_to? :remove_dns_peering
                  @remove_dns_peering = ::Gapic::Config::Method.new remove_dns_peering_config
                  list_dns_peerings_config = parent_rpcs.list_dns_peerings if parent_rpcs.respond_to? :list_dns_peerings
                  @list_dns_peerings = ::Gapic::Config::Method.new list_dns_peerings_config

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