# frozen_string_literal: true

# Copyright 2023 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/alloydb/v1alpha/service_pb"
require "google/cloud/location"
require "google/iam/v1"

module Google
  module Cloud
    module AlloyDB
      module V1alpha
        module AlloyDBAdmin
          ##
          # Client for the AlloyDBAdmin service.
          #
          # Service describing handlers for resources
          #
          class Client
            # @private
            API_VERSION = ""

            # @private
            DEFAULT_ENDPOINT_TEMPLATE = "alloydb.$UNIVERSE_DOMAIN$"

            include Paths

            # @private
            attr_reader :alloy_db_admin_stub

            ##
            # Configure the AlloyDBAdmin Client class.
            #
            # See {::Google::Cloud::AlloyDB::V1alpha::AlloyDBAdmin::Client::Configuration}
            # for a description of the configuration fields.
            #
            # @example
            #
            #   # Modify the configuration for all AlloyDBAdmin clients
            #   ::Google::Cloud::AlloyDB::V1alpha::AlloyDBAdmin::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", "AlloyDB", "V1alpha"]
                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.rpcs.list_clusters.timeout = 60.0
                default_config.rpcs.list_clusters.retry_policy = {
                  initial_delay: 1.0, max_delay: 60.0, multiplier: 1.3, retry_codes: [14]
                }

                default_config.rpcs.get_cluster.timeout = 60.0
                default_config.rpcs.get_cluster.retry_policy = {
                  initial_delay: 1.0, max_delay: 60.0, multiplier: 1.3, retry_codes: [14]
                }

                default_config.rpcs.list_instances.timeout = 60.0
                default_config.rpcs.list_instances.retry_policy = {
                  initial_delay: 1.0, max_delay: 60.0, multiplier: 1.3, retry_codes: [14]
                }

                default_config.rpcs.get_instance.timeout = 60.0
                default_config.rpcs.get_instance.retry_policy = {
                  initial_delay: 1.0, max_delay: 60.0, multiplier: 1.3, retry_codes: [14]
                }

                default_config.rpcs.list_backups.timeout = 60.0
                default_config.rpcs.list_backups.retry_policy = {
                  initial_delay: 1.0, max_delay: 60.0, multiplier: 1.3, retry_codes: [14]
                }

                default_config.rpcs.get_backup.timeout = 60.0
                default_config.rpcs.get_backup.retry_policy = {
                  initial_delay: 1.0, max_delay: 60.0, multiplier: 1.3, retry_codes: [14]
                }

                default_config.rpcs.list_supported_database_flags.timeout = 60.0
                default_config.rpcs.list_supported_database_flags.retry_policy = {
                  initial_delay: 1.0, max_delay: 60.0, multiplier: 1.3, retry_codes: [14]
                }

                default_config.rpcs.generate_client_certificate.timeout = 60.0
                default_config.rpcs.generate_client_certificate.retry_policy = {
                  initial_delay: 1.0, max_delay: 60.0, multiplier: 1.3, retry_codes: [14]
                }

                default_config.rpcs.get_connection_info.timeout = 60.0
                default_config.rpcs.get_connection_info.retry_policy = {
                  initial_delay: 1.0, max_delay: 60.0, multiplier: 1.3, retry_codes: [14]
                }

                default_config.rpcs.list_users.timeout = 60.0
                default_config.rpcs.list_users.retry_policy = {
                  initial_delay: 1.0, max_delay: 60.0, multiplier: 1.3, retry_codes: [14]
                }

                default_config.rpcs.get_user.timeout = 60.0
                default_config.rpcs.get_user.retry_policy = {
                  initial_delay: 1.0, max_delay: 60.0, multiplier: 1.3, retry_codes: [14]
                }

                default_config.rpcs.create_database.timeout = 60.0
                default_config.rpcs.create_database.retry_policy = {
                  initial_delay: 1.0, max_delay: 60.0, multiplier: 1.3, retry_codes: [14]
                }

                default_config
              end
              yield @configure if block_given?
              @configure
            end

            ##
            # Configure the AlloyDBAdmin 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::AlloyDB::V1alpha::AlloyDBAdmin::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

            ##
            # The effective universe domain
            #
            # @return [String]
            #
            def universe_domain
              @alloy_db_admin_stub.universe_domain
            end

            ##
            # Create a new AlloyDBAdmin client object.
            #
            # @example
            #
            #   # Create a client using the default configuration
            #   client = ::Google::Cloud::AlloyDB::V1alpha::AlloyDBAdmin::Client.new
            #
            #   # Create a client using a custom configuration
            #   client = ::Google::Cloud::AlloyDB::V1alpha::AlloyDBAdmin::Client.new do |config|
            #     config.timeout = 10.0
            #   end
            #
            # @yield [config] Configure the AlloyDBAdmin 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/alloydb/v1alpha/service_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.nil? ||
                                       (@config.endpoint == Configuration::DEFAULT_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
                config.universe_domain = @config.universe_domain
              end

              @alloy_db_admin_stub = ::Gapic::ServiceStub.new(
                ::Google::Cloud::AlloyDB::V1alpha::AlloyDBAdmin::Stub,
                credentials: credentials,
                endpoint: @config.endpoint,
                endpoint_template: DEFAULT_ENDPOINT_TEMPLATE,
                universe_domain: @config.universe_domain,
                channel_args: @config.channel_args,
                interceptors: @config.interceptors,
                channel_pool_config: @config.channel_pool,
                logger: @config.logger
              )

              @alloy_db_admin_stub.stub_logger&.info do |entry|
                entry.set_system_name
                entry.set_service
                entry.message = "Created client for #{entry.service}"
                entry.set_credentials_fields credentials
                entry.set "customEndpoint", @config.endpoint if @config.endpoint
                entry.set "defaultTimeout", @config.timeout if @config.timeout
                entry.set "quotaProject", @quota_project_id if @quota_project_id
              end

              @location_client = Google::Cloud::Location::Locations::Client.new do |config|
                config.credentials = credentials
                config.quota_project = @quota_project_id
                config.endpoint = @alloy_db_admin_stub.endpoint
                config.universe_domain = @alloy_db_admin_stub.universe_domain
                config.logger = @alloy_db_admin_stub.logger if config.respond_to? :logger=
              end

              @iam_policy_client = Google::Iam::V1::IAMPolicy::Client.new do |config|
                config.credentials = credentials
                config.quota_project = @quota_project_id
                config.endpoint = @alloy_db_admin_stub.endpoint
                config.universe_domain = @alloy_db_admin_stub.universe_domain
                config.logger = @alloy_db_admin_stub.logger if config.respond_to? :logger=
              end
            end

            ##
            # Get the associated client for long-running operations.
            #
            # @return [::Google::Cloud::AlloyDB::V1alpha::AlloyDBAdmin::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

            ##
            # Get the associated client for mix-in of the IAMPolicy.
            #
            # @return [Google::Iam::V1::IAMPolicy::Client]
            #
            attr_reader :iam_policy_client

            ##
            # The logger used for request/response debug logging.
            #
            # @return [Logger]
            #
            def logger
              @alloy_db_admin_stub.logger
            end

            # Service calls

            ##
            # Lists Clusters in a given project and location.
            #
            # @overload list_clusters(request, options = nil)
            #   Pass arguments to `list_clusters` via a request object, either of type
            #   {::Google::Cloud::AlloyDB::V1alpha::ListClustersRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::AlloyDB::V1alpha::ListClustersRequest, ::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_clusters(parent: nil, page_size: nil, page_token: nil, filter: nil, order_by: nil)
            #   Pass arguments to `list_clusters` 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 name of the parent resource. For the required format, see the
            #     comment on the Cluster.name field. Additionally, you can perform an
            #     aggregated list operation by specifying a value with the following format:
            #      * projects/\\{project}/locations/-
            #   @param page_size [::Integer]
            #     Optional. Requested page size. Server may return fewer items than
            #     requested. If unspecified, server will pick an appropriate default.
            #   @param page_token [::String]
            #     A token identifying a page of results the server should return.
            #   @param filter [::String]
            #     Optional. Filtering results
            #   @param order_by [::String]
            #     Optional. Hint for how to order the results
            #
            # @yield [response, operation] Access the result along with the RPC operation
            # @yieldparam response [::Gapic::PagedEnumerable<::Google::Cloud::AlloyDB::V1alpha::Cluster>]
            # @yieldparam operation [::GRPC::ActiveCall::Operation]
            #
            # @return [::Gapic::PagedEnumerable<::Google::Cloud::AlloyDB::V1alpha::Cluster>]
            #
            # @raise [::Google::Cloud::Error] if the RPC is aborted.
            #
            # @example Basic example
            #   require "google/cloud/alloy_db/v1alpha"
            #
            #   # Create a client object. The client can be reused for multiple calls.
            #   client = Google::Cloud::AlloyDB::V1alpha::AlloyDBAdmin::Client.new
            #
            #   # Create a request. To set request fields, pass in keyword arguments.
            #   request = Google::Cloud::AlloyDB::V1alpha::ListClustersRequest.new
            #
            #   # Call the list_clusters method.
            #   result = client.list_clusters 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::AlloyDB::V1alpha::Cluster.
            #     p item
            #   end
            #
            def list_clusters request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::AlloyDB::V1alpha::ListClustersRequest

              # 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_clusters.metadata.to_h

              # Set x-goog-api-client, x-goog-user-project and x-goog-api-version 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::AlloyDB::V1alpha::VERSION
              metadata[:"x-goog-api-version"] = API_VERSION unless API_VERSION.empty?
              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.list_clusters.timeout,
                                     metadata:     metadata,
                                     retry_policy: @config.rpcs.list_clusters.retry_policy

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

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

            ##
            # Gets details of a single Cluster.
            #
            # @overload get_cluster(request, options = nil)
            #   Pass arguments to `get_cluster` via a request object, either of type
            #   {::Google::Cloud::AlloyDB::V1alpha::GetClusterRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::AlloyDB::V1alpha::GetClusterRequest, ::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_cluster(name: nil, view: nil)
            #   Pass arguments to `get_cluster` 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]
            #     Required. The name of the resource. For the required format, see the
            #     comment on the Cluster.name field.
            #   @param view [::Google::Cloud::AlloyDB::V1alpha::ClusterView]
            #     Optional. The view of the cluster to return. Returns all default fields if
            #     not set.
            #
            # @yield [response, operation] Access the result along with the RPC operation
            # @yieldparam response [::Google::Cloud::AlloyDB::V1alpha::Cluster]
            # @yieldparam operation [::GRPC::ActiveCall::Operation]
            #
            # @return [::Google::Cloud::AlloyDB::V1alpha::Cluster]
            #
            # @raise [::Google::Cloud::Error] if the RPC is aborted.
            #
            # @example Basic example
            #   require "google/cloud/alloy_db/v1alpha"
            #
            #   # Create a client object. The client can be reused for multiple calls.
            #   client = Google::Cloud::AlloyDB::V1alpha::AlloyDBAdmin::Client.new
            #
            #   # Create a request. To set request fields, pass in keyword arguments.
            #   request = Google::Cloud::AlloyDB::V1alpha::GetClusterRequest.new
            #
            #   # Call the get_cluster method.
            #   result = client.get_cluster request
            #
            #   # The returned object is of type Google::Cloud::AlloyDB::V1alpha::Cluster.
            #   p result
            #
            def get_cluster request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::AlloyDB::V1alpha::GetClusterRequest

              # 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_cluster.metadata.to_h

              # Set x-goog-api-client, x-goog-user-project and x-goog-api-version 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::AlloyDB::V1alpha::VERSION
              metadata[:"x-goog-api-version"] = API_VERSION unless API_VERSION.empty?
              metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

              header_params = {}
              if request.name
                header_params["name"] = request.name
              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_cluster.timeout,
                                     metadata:     metadata,
                                     retry_policy: @config.rpcs.get_cluster.retry_policy

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

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

            ##
            # Creates a new Cluster in a given project and location.
            #
            # @overload create_cluster(request, options = nil)
            #   Pass arguments to `create_cluster` via a request object, either of type
            #   {::Google::Cloud::AlloyDB::V1alpha::CreateClusterRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::AlloyDB::V1alpha::CreateClusterRequest, ::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_cluster(parent: nil, cluster_id: nil, cluster: nil, request_id: nil, validate_only: nil)
            #   Pass arguments to `create_cluster` 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 location of the new cluster. For the required format, see the
            #     comment on the Cluster.name field.
            #   @param cluster_id [::String]
            #     Required. ID of the requesting object.
            #   @param cluster [::Google::Cloud::AlloyDB::V1alpha::Cluster, ::Hash]
            #     Required. The resource being created
            #   @param request_id [::String]
            #     Optional. An optional request ID to identify requests. Specify a unique
            #     request ID so that if you must retry your request, the server ignores the
            #     request if it has already been completed. The server guarantees that for at
            #     least 60 minutes since the first request.
            #
            #     For example, consider a situation where you make an initial request and
            #     the request times out. If you make the request again with the same request
            #     ID, the server can check if the original operation with the same request ID
            #     was received, and if so, ignores the second request. This prevents
            #     clients from accidentally creating duplicate commitments.
            #
            #     The request ID must be a valid UUID with the exception that zero UUID is
            #     not supported (00000000-0000-0000-0000-000000000000).
            #   @param validate_only [::Boolean]
            #     Optional. If set, performs request validation, for example, permission
            #     checks and any other type of validation, but does not actually execute the
            #     create request.
            #
            # @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/alloy_db/v1alpha"
            #
            #   # Create a client object. The client can be reused for multiple calls.
            #   client = Google::Cloud::AlloyDB::V1alpha::AlloyDBAdmin::Client.new
            #
            #   # Create a request. To set request fields, pass in keyword arguments.
            #   request = Google::Cloud::AlloyDB::V1alpha::CreateClusterRequest.new
            #
            #   # Call the create_cluster method.
            #   result = client.create_cluster 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 create_cluster request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::AlloyDB::V1alpha::CreateClusterRequest

              # 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_cluster.metadata.to_h

              # Set x-goog-api-client, x-goog-user-project and x-goog-api-version 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::AlloyDB::V1alpha::VERSION
              metadata[:"x-goog-api-version"] = API_VERSION unless API_VERSION.empty?
              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.create_cluster.timeout,
                                     metadata:     metadata,
                                     retry_policy: @config.rpcs.create_cluster.retry_policy

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

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

            ##
            # Updates the parameters of a single Cluster.
            #
            # @overload update_cluster(request, options = nil)
            #   Pass arguments to `update_cluster` via a request object, either of type
            #   {::Google::Cloud::AlloyDB::V1alpha::UpdateClusterRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::AlloyDB::V1alpha::UpdateClusterRequest, ::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_cluster(update_mask: nil, cluster: nil, request_id: nil, validate_only: nil, allow_missing: nil)
            #   Pass arguments to `update_cluster` 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 update_mask [::Google::Protobuf::FieldMask, ::Hash]
            #     Optional. Field mask is used to specify the fields to be overwritten in the
            #     Cluster resource by the update.
            #     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 then all fields will be overwritten.
            #   @param cluster [::Google::Cloud::AlloyDB::V1alpha::Cluster, ::Hash]
            #     Required. The resource being updated
            #   @param request_id [::String]
            #     Optional. An optional request ID to identify requests. Specify a unique
            #     request ID so that if you must retry your request, the server ignores the
            #     request if it has already been completed. The server guarantees that for at
            #     least 60 minutes since the first request.
            #
            #     For example, consider a situation where you make an initial request and
            #     the request times out. If you make the request again with the same request
            #     ID, the server can check if the original operation with the same request ID
            #     was received, and if so, ignores the second request. This prevents
            #     clients from accidentally creating duplicate commitments.
            #
            #     The request ID must be a valid UUID with the exception that zero UUID is
            #     not supported (00000000-0000-0000-0000-000000000000).
            #   @param validate_only [::Boolean]
            #     Optional. If set, performs request validation, for example, permission
            #     checks and any other type of validation, but does not actually execute the
            #     create request.
            #   @param allow_missing [::Boolean]
            #     Optional. If set to true, update succeeds even if cluster is not found. In
            #     that case, a new cluster is created and `update_mask` is ignored.
            #
            # @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/alloy_db/v1alpha"
            #
            #   # Create a client object. The client can be reused for multiple calls.
            #   client = Google::Cloud::AlloyDB::V1alpha::AlloyDBAdmin::Client.new
            #
            #   # Create a request. To set request fields, pass in keyword arguments.
            #   request = Google::Cloud::AlloyDB::V1alpha::UpdateClusterRequest.new
            #
            #   # Call the update_cluster method.
            #   result = client.update_cluster 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 update_cluster request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::AlloyDB::V1alpha::UpdateClusterRequest

              # 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_cluster.metadata.to_h

              # Set x-goog-api-client, x-goog-user-project and x-goog-api-version 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::AlloyDB::V1alpha::VERSION
              metadata[:"x-goog-api-version"] = API_VERSION unless API_VERSION.empty?
              metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

              header_params = {}
              if request.cluster&.name
                header_params["cluster.name"] = request.cluster.name
              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.update_cluster.timeout,
                                     metadata:     metadata,
                                     retry_policy: @config.rpcs.update_cluster.retry_policy

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

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

            ##
            # Exports data from the cluster.
            # Imperative only.
            #
            # @overload export_cluster(request, options = nil)
            #   Pass arguments to `export_cluster` via a request object, either of type
            #   {::Google::Cloud::AlloyDB::V1alpha::ExportClusterRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::AlloyDB::V1alpha::ExportClusterRequest, ::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_cluster(gcs_destination: nil, csv_export_options: nil, sql_export_options: nil, name: nil, database: nil)
            #   Pass arguments to `export_cluster` 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 gcs_destination [::Google::Cloud::AlloyDB::V1alpha::GcsDestination, ::Hash]
            #     Required. Option to export data to cloud storage.
            #   @param csv_export_options [::Google::Cloud::AlloyDB::V1alpha::ExportClusterRequest::CsvExportOptions, ::Hash]
            #     Options for exporting data in CSV format. Required field to be set for
            #     CSV file type.
            #
            #     Note: The following parameters are mutually exclusive: `csv_export_options`, `sql_export_options`. At most one of these parameters can be set. If more than one is set, only one will be used, and it is not defined which one.
            #   @param sql_export_options [::Google::Cloud::AlloyDB::V1alpha::ExportClusterRequest::SqlExportOptions, ::Hash]
            #     Options for exporting data in SQL format. Required field to be set for
            #     SQL file type.
            #
            #     Note: The following parameters are mutually exclusive: `sql_export_options`, `csv_export_options`. At most one of these parameters can be set. If more than one is set, only one will be used, and it is not defined which one.
            #   @param name [::String]
            #     Required. The resource name of the cluster.
            #   @param database [::String]
            #     Required. Name of the database where the export command will be executed.
            #     Note - Value provided should be the same as expected from
            #     `SELECT current_database();` and NOT as a resource reference.
            #
            # @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/alloy_db/v1alpha"
            #
            #   # Create a client object. The client can be reused for multiple calls.
            #   client = Google::Cloud::AlloyDB::V1alpha::AlloyDBAdmin::Client.new
            #
            #   # Create a request. To set request fields, pass in keyword arguments.
            #   request = Google::Cloud::AlloyDB::V1alpha::ExportClusterRequest.new
            #
            #   # Call the export_cluster method.
            #   result = client.export_cluster 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_cluster request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::AlloyDB::V1alpha::ExportClusterRequest

              # 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_cluster.metadata.to_h

              # Set x-goog-api-client, x-goog-user-project and x-goog-api-version 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::AlloyDB::V1alpha::VERSION
              metadata[:"x-goog-api-version"] = API_VERSION unless API_VERSION.empty?
              metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

              header_params = {}
              if request.name
                header_params["name"] = request.name
              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_cluster.timeout,
                                     metadata:     metadata,
                                     retry_policy: @config.rpcs.export_cluster.retry_policy

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

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

            ##
            # Imports data to the cluster.
            # Imperative only.
            #
            # @overload import_cluster(request, options = nil)
            #   Pass arguments to `import_cluster` via a request object, either of type
            #   {::Google::Cloud::AlloyDB::V1alpha::ImportClusterRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::AlloyDB::V1alpha::ImportClusterRequest, ::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_cluster(sql_import_options: nil, csv_import_options: nil, name: nil, gcs_uri: nil, database: nil, user: nil)
            #   Pass arguments to `import_cluster` 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 sql_import_options [::Google::Cloud::AlloyDB::V1alpha::ImportClusterRequest::SqlImportOptions, ::Hash]
            #     Options for importing data in SQL format.
            #
            #     Note: The following parameters are mutually exclusive: `sql_import_options`, `csv_import_options`. At most one of these parameters can be set. If more than one is set, only one will be used, and it is not defined which one.
            #   @param csv_import_options [::Google::Cloud::AlloyDB::V1alpha::ImportClusterRequest::CsvImportOptions, ::Hash]
            #     Options for importing data in CSV format.
            #
            #     Note: The following parameters are mutually exclusive: `csv_import_options`, `sql_import_options`. At most one of these parameters can be set. If more than one is set, only one will be used, and it is not defined which one.
            #   @param name [::String]
            #     Required. The resource name of the cluster.
            #   @param gcs_uri [::String]
            #     Required. The path to the file in Google Cloud Storage where the source
            #     file for import will be stored. The URI is in the form
            #     `gs://bucketName/fileName`.
            #   @param database [::String]
            #     Optional. Name of the database to which the import will be done.
            #     For import from SQL file, this is required only if the file does not
            #     specify a database.
            #     Note - Value provided should be the same as expected from `SELECT
            #     current_database();` and NOT as a resource reference.
            #   @param user [::String]
            #     Optional. Database user to be used for importing the data.
            #     Note - Value provided should be the same as expected from
            #     `SELECT current_user;` and NOT as a resource reference.
            #
            # @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/alloy_db/v1alpha"
            #
            #   # Create a client object. The client can be reused for multiple calls.
            #   client = Google::Cloud::AlloyDB::V1alpha::AlloyDBAdmin::Client.new
            #
            #   # Create a request. To set request fields, pass in keyword arguments.
            #   request = Google::Cloud::AlloyDB::V1alpha::ImportClusterRequest.new
            #
            #   # Call the import_cluster method.
            #   result = client.import_cluster 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_cluster request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::AlloyDB::V1alpha::ImportClusterRequest

              # 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_cluster.metadata.to_h

              # Set x-goog-api-client, x-goog-user-project and x-goog-api-version 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::AlloyDB::V1alpha::VERSION
              metadata[:"x-goog-api-version"] = API_VERSION unless API_VERSION.empty?
              metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

              header_params = {}
              if request.name
                header_params["name"] = request.name
              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_cluster.timeout,
                                     metadata:     metadata,
                                     retry_policy: @config.rpcs.import_cluster.retry_policy

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

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

            ##
            # Upgrades a single Cluster.
            # Imperative only.
            #
            # @overload upgrade_cluster(request, options = nil)
            #   Pass arguments to `upgrade_cluster` via a request object, either of type
            #   {::Google::Cloud::AlloyDB::V1alpha::UpgradeClusterRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::AlloyDB::V1alpha::UpgradeClusterRequest, ::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_cluster(name: nil, version: nil, request_id: nil, validate_only: nil, etag: nil)
            #   Pass arguments to `upgrade_cluster` 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]
            #     Required. The resource name of the cluster.
            #   @param version [::Google::Cloud::AlloyDB::V1alpha::DatabaseVersion]
            #     Required. The version the cluster is going to be upgraded to.
            #   @param request_id [::String]
            #     Optional. An optional request ID to identify requests. Specify a unique
            #     request ID so that if you must retry your request, the server ignores the
            #     request if it has already been completed. The server guarantees that for at
            #     least 60 minutes since the first request.
            #
            #     For example, consider a situation where you make an initial request and
            #     the request times out. If you make the request again with the same request
            #     ID, the server can check if the original operation with the same request ID
            #     was received, and if so, ignores the second request. This prevents
            #     clients from accidentally creating duplicate commitments.
            #
            #     The request ID must be a valid UUID with the exception that zero UUID is
            #     not supported (00000000-0000-0000-0000-000000000000).
            #   @param validate_only [::Boolean]
            #     Optional. If set, performs request validation, for example, permission
            #     checks and any other type of validation, but does not actually execute the
            #     create request.
            #   @param etag [::String]
            #     Optional. The current etag of the Cluster.
            #     If an etag is provided and does not match the current etag of the Cluster,
            #     upgrade will be blocked and an ABORTED error will be returned.
            #
            # @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/alloy_db/v1alpha"
            #
            #   # Create a client object. The client can be reused for multiple calls.
            #   client = Google::Cloud::AlloyDB::V1alpha::AlloyDBAdmin::Client.new
            #
            #   # Create a request. To set request fields, pass in keyword arguments.
            #   request = Google::Cloud::AlloyDB::V1alpha::UpgradeClusterRequest.new
            #
            #   # Call the upgrade_cluster method.
            #   result = client.upgrade_cluster 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 upgrade_cluster request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::AlloyDB::V1alpha::UpgradeClusterRequest

              # 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_cluster.metadata.to_h

              # Set x-goog-api-client, x-goog-user-project and x-goog-api-version 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::AlloyDB::V1alpha::VERSION
              metadata[:"x-goog-api-version"] = API_VERSION unless API_VERSION.empty?
              metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

              header_params = {}
              if request.name
                header_params["name"] = request.name
              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.upgrade_cluster.timeout,
                                     metadata:     metadata,
                                     retry_policy: @config.rpcs.upgrade_cluster.retry_policy

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

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

            ##
            # Deletes a single Cluster.
            #
            # @overload delete_cluster(request, options = nil)
            #   Pass arguments to `delete_cluster` via a request object, either of type
            #   {::Google::Cloud::AlloyDB::V1alpha::DeleteClusterRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::AlloyDB::V1alpha::DeleteClusterRequest, ::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_cluster(name: nil, request_id: nil, etag: nil, validate_only: nil, force: nil)
            #   Pass arguments to `delete_cluster` 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]
            #     Required. The name of the resource. For the required format, see the
            #     comment on the Cluster.name field.
            #   @param request_id [::String]
            #     Optional. An optional request ID to identify requests. Specify a unique
            #     request ID so that if you must retry your request, the server ignores the
            #     request if it has already been completed. The server guarantees that for at
            #     least 60 minutes since the first request.
            #
            #     For example, consider a situation where you make an initial request and
            #     the request times out. If you make the request again with the same request
            #     ID, the server can check if the original operation with the same request ID
            #     was received, and if so, ignores the second request. This prevents
            #     clients from accidentally creating duplicate commitments.
            #
            #     The request ID must be a valid UUID with the exception that zero UUID is
            #     not supported (00000000-0000-0000-0000-000000000000).
            #   @param etag [::String]
            #     Optional. The current etag of the Cluster.
            #     If an etag is provided and does not match the current etag of the Cluster,
            #     deletion will be blocked and an ABORTED error will be returned.
            #   @param validate_only [::Boolean]
            #     Optional. If set, performs request validation, for example, permission
            #     checks and any other type of validation, but does not actually execute the
            #     create request.
            #   @param force [::Boolean]
            #     Optional. Whether to cascade delete child instances for given cluster.
            #
            # @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/alloy_db/v1alpha"
            #
            #   # Create a client object. The client can be reused for multiple calls.
            #   client = Google::Cloud::AlloyDB::V1alpha::AlloyDBAdmin::Client.new
            #
            #   # Create a request. To set request fields, pass in keyword arguments.
            #   request = Google::Cloud::AlloyDB::V1alpha::DeleteClusterRequest.new
            #
            #   # Call the delete_cluster method.
            #   result = client.delete_cluster 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 delete_cluster request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::AlloyDB::V1alpha::DeleteClusterRequest

              # 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_cluster.metadata.to_h

              # Set x-goog-api-client, x-goog-user-project and x-goog-api-version 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::AlloyDB::V1alpha::VERSION
              metadata[:"x-goog-api-version"] = API_VERSION unless API_VERSION.empty?
              metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

              header_params = {}
              if request.name
                header_params["name"] = request.name
              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_cluster.timeout,
                                     metadata:     metadata,
                                     retry_policy: @config.rpcs.delete_cluster.retry_policy

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

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

            ##
            # Promotes a SECONDARY cluster. This turns down replication
            # from the PRIMARY cluster and promotes a secondary cluster
            # into its own standalone cluster.
            # Imperative only.
            #
            # @overload promote_cluster(request, options = nil)
            #   Pass arguments to `promote_cluster` via a request object, either of type
            #   {::Google::Cloud::AlloyDB::V1alpha::PromoteClusterRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::AlloyDB::V1alpha::PromoteClusterRequest, ::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 promote_cluster(name: nil, request_id: nil, etag: nil, validate_only: nil)
            #   Pass arguments to `promote_cluster` 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]
            #     Required. The name of the resource. For the required format, see the
            #     comment on the Cluster.name field
            #   @param request_id [::String]
            #     Optional. An optional request ID to identify requests. Specify a unique
            #     request ID so that if you must retry your request, the server ignores the
            #     request if it has already been completed. The server guarantees that for at
            #     least 60 minutes since the first request.
            #
            #     For example, consider a situation where you make an initial request and
            #     the request times out. If you make the request again with the same request
            #     ID, the server can check if original operation with the same request ID
            #     was received, and if so, will ignore the second request. This prevents
            #     clients from accidentally creating duplicate commitments.
            #
            #     The request ID must be a valid UUID with the exception that zero UUID is
            #     not supported (00000000-0000-0000-0000-000000000000).
            #   @param etag [::String]
            #     Optional. The current etag of the Cluster.
            #     If an etag is provided and does not match the current etag of the Cluster,
            #     deletion will be blocked and an ABORTED error will be returned.
            #   @param validate_only [::Boolean]
            #     Optional. If set, performs request validation, for example, permission
            #     checks and any other type of validation, but does not actually execute the
            #     create request.
            #
            # @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/alloy_db/v1alpha"
            #
            #   # Create a client object. The client can be reused for multiple calls.
            #   client = Google::Cloud::AlloyDB::V1alpha::AlloyDBAdmin::Client.new
            #
            #   # Create a request. To set request fields, pass in keyword arguments.
            #   request = Google::Cloud::AlloyDB::V1alpha::PromoteClusterRequest.new
            #
            #   # Call the promote_cluster method.
            #   result = client.promote_cluster 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 promote_cluster request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::AlloyDB::V1alpha::PromoteClusterRequest

              # 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.promote_cluster.metadata.to_h

              # Set x-goog-api-client, x-goog-user-project and x-goog-api-version 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::AlloyDB::V1alpha::VERSION
              metadata[:"x-goog-api-version"] = API_VERSION unless API_VERSION.empty?
              metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

              header_params = {}
              if request.name
                header_params["name"] = request.name
              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.promote_cluster.timeout,
                                     metadata:     metadata,
                                     retry_policy: @config.rpcs.promote_cluster.retry_policy

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

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

            ##
            # Switches the roles of PRIMARY and SECONDARY clusters without any data loss.
            # This promotes the SECONDARY cluster to PRIMARY and sets up the original
            # PRIMARY cluster to replicate from this newly promoted cluster.
            #
            # @overload switchover_cluster(request, options = nil)
            #   Pass arguments to `switchover_cluster` via a request object, either of type
            #   {::Google::Cloud::AlloyDB::V1alpha::SwitchoverClusterRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::AlloyDB::V1alpha::SwitchoverClusterRequest, ::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 switchover_cluster(name: nil, request_id: nil, validate_only: nil)
            #   Pass arguments to `switchover_cluster` 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]
            #     Required. The name of the resource. For the required format, see the
            #     comment on the Cluster.name field
            #   @param request_id [::String]
            #     Optional. An optional request ID to identify requests. Specify a unique
            #     request ID so that if you must retry your request, the server ignores the
            #     request if it has already been completed. The server guarantees that for at
            #     least 60 minutes since the first request.
            #
            #     For example, consider a situation where you make an initial request and
            #     the request times out. If you make the request again with the same request
            #     ID, the server can check if the original operation with the same request ID
            #     was received, and if so, ignores the second request. This prevents
            #     clients from accidentally creating duplicate commitments.
            #
            #     The request ID must be a valid UUID with the exception that zero UUID is
            #     not supported (00000000-0000-0000-0000-000000000000).
            #   @param validate_only [::Boolean]
            #     Optional. If set, performs request validation, for example, permission
            #     checks and any other type of validation, but does not actually execute the
            #     create request.
            #
            # @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/alloy_db/v1alpha"
            #
            #   # Create a client object. The client can be reused for multiple calls.
            #   client = Google::Cloud::AlloyDB::V1alpha::AlloyDBAdmin::Client.new
            #
            #   # Create a request. To set request fields, pass in keyword arguments.
            #   request = Google::Cloud::AlloyDB::V1alpha::SwitchoverClusterRequest.new
            #
            #   # Call the switchover_cluster method.
            #   result = client.switchover_cluster 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 switchover_cluster request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::AlloyDB::V1alpha::SwitchoverClusterRequest

              # 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.switchover_cluster.metadata.to_h

              # Set x-goog-api-client, x-goog-user-project and x-goog-api-version 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::AlloyDB::V1alpha::VERSION
              metadata[:"x-goog-api-version"] = API_VERSION unless API_VERSION.empty?
              metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

              header_params = {}
              if request.name
                header_params["name"] = request.name
              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.switchover_cluster.timeout,
                                     metadata:     metadata,
                                     retry_policy: @config.rpcs.switchover_cluster.retry_policy

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

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

            ##
            # Creates a new Cluster in a given project and location, with a volume
            # restored from the provided source, either a backup ID or a point-in-time
            # and a source cluster.
            #
            # @overload restore_cluster(request, options = nil)
            #   Pass arguments to `restore_cluster` via a request object, either of type
            #   {::Google::Cloud::AlloyDB::V1alpha::RestoreClusterRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::AlloyDB::V1alpha::RestoreClusterRequest, ::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_cluster(backup_source: nil, continuous_backup_source: nil, parent: nil, cluster_id: nil, cluster: nil, request_id: nil, validate_only: nil)
            #   Pass arguments to `restore_cluster` 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 backup_source [::Google::Cloud::AlloyDB::V1alpha::BackupSource, ::Hash]
            #     Backup source.
            #
            #     Note: The following parameters are mutually exclusive: `backup_source`, `continuous_backup_source`. At most one of these parameters can be set. If more than one is set, only one will be used, and it is not defined which one.
            #   @param continuous_backup_source [::Google::Cloud::AlloyDB::V1alpha::ContinuousBackupSource, ::Hash]
            #     ContinuousBackup source. Continuous backup needs to be enabled in the
            #     source cluster for this operation to succeed.
            #
            #     Note: The following parameters are mutually exclusive: `continuous_backup_source`, `backup_source`. At most one of these parameters can be set. If more than one is set, only one will be used, and it is not defined which one.
            #   @param parent [::String]
            #     Required. The name of the parent resource. For the required format, see the
            #     comment on the Cluster.name field.
            #   @param cluster_id [::String]
            #     Required. ID of the requesting object.
            #   @param cluster [::Google::Cloud::AlloyDB::V1alpha::Cluster, ::Hash]
            #     Required. The resource being created
            #   @param request_id [::String]
            #     Optional. An optional request ID to identify requests. Specify a unique
            #     request ID so that if you must retry your request, the server ignores the
            #     request if it has already been completed. The server guarantees that for at
            #     least 60 minutes since the first request.
            #
            #     For example, consider a situation where you make an initial request and
            #     the request times out. If you make the request again with the same request
            #     ID, the server can check if the original operation with the same request ID
            #     was received, and if so, ignores the second request. This prevents
            #     clients from accidentally creating duplicate commitments.
            #
            #     The request ID must be a valid UUID with the exception that zero UUID is
            #     not supported (00000000-0000-0000-0000-000000000000).
            #   @param validate_only [::Boolean]
            #     Optional. If set, performs request validation, for example, permission
            #     checks and any other type of validation, but does not actually execute the
            #     create request.
            #
            # @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/alloy_db/v1alpha"
            #
            #   # Create a client object. The client can be reused for multiple calls.
            #   client = Google::Cloud::AlloyDB::V1alpha::AlloyDBAdmin::Client.new
            #
            #   # Create a request. To set request fields, pass in keyword arguments.
            #   request = Google::Cloud::AlloyDB::V1alpha::RestoreClusterRequest.new
            #
            #   # Call the restore_cluster method.
            #   result = client.restore_cluster 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_cluster request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::AlloyDB::V1alpha::RestoreClusterRequest

              # 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_cluster.metadata.to_h

              # Set x-goog-api-client, x-goog-user-project and x-goog-api-version 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::AlloyDB::V1alpha::VERSION
              metadata[:"x-goog-api-version"] = API_VERSION unless API_VERSION.empty?
              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_cluster.timeout,
                                     metadata:     metadata,
                                     retry_policy: @config.rpcs.restore_cluster.retry_policy

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

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

            ##
            # Creates a cluster of type SECONDARY in the given location using
            # the primary cluster as the source.
            #
            # @overload create_secondary_cluster(request, options = nil)
            #   Pass arguments to `create_secondary_cluster` via a request object, either of type
            #   {::Google::Cloud::AlloyDB::V1alpha::CreateSecondaryClusterRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::AlloyDB::V1alpha::CreateSecondaryClusterRequest, ::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_secondary_cluster(parent: nil, cluster_id: nil, cluster: nil, request_id: nil, validate_only: nil)
            #   Pass arguments to `create_secondary_cluster` 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 location of the new cluster. For the required
            #     format, see the comment on the Cluster.name field.
            #   @param cluster_id [::String]
            #     Required. ID of the requesting object (the secondary cluster).
            #   @param cluster [::Google::Cloud::AlloyDB::V1alpha::Cluster, ::Hash]
            #     Required. Configuration of the requesting object (the secondary cluster).
            #   @param request_id [::String]
            #     Optional. An optional request ID to identify requests. Specify a unique
            #     request ID so that if you must retry your request, the server ignores the
            #     request if it has already been completed. The server guarantees that for at
            #     least 60 minutes since the first request.
            #
            #     For example, consider a situation where you make an initial request and
            #     the request times out. If you make the request again with the same request
            #     ID, the server can check if the original operation with the same request ID
            #     was received, and if so, ignores the second request. This prevents
            #     clients from accidentally creating duplicate commitments.
            #
            #     The request ID must be a valid UUID with the exception that zero UUID is
            #     not supported (00000000-0000-0000-0000-000000000000).
            #   @param validate_only [::Boolean]
            #     Optional. If set, performs request validation, for example, permission
            #     checks and any other type of validation, but does not actually execute the
            #     create request.
            #
            # @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/alloy_db/v1alpha"
            #
            #   # Create a client object. The client can be reused for multiple calls.
            #   client = Google::Cloud::AlloyDB::V1alpha::AlloyDBAdmin::Client.new
            #
            #   # Create a request. To set request fields, pass in keyword arguments.
            #   request = Google::Cloud::AlloyDB::V1alpha::CreateSecondaryClusterRequest.new
            #
            #   # Call the create_secondary_cluster method.
            #   result = client.create_secondary_cluster 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 create_secondary_cluster request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::AlloyDB::V1alpha::CreateSecondaryClusterRequest

              # 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_secondary_cluster.metadata.to_h

              # Set x-goog-api-client, x-goog-user-project and x-goog-api-version 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::AlloyDB::V1alpha::VERSION
              metadata[:"x-goog-api-version"] = API_VERSION unless API_VERSION.empty?
              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.create_secondary_cluster.timeout,
                                     metadata:     metadata,
                                     retry_policy: @config.rpcs.create_secondary_cluster.retry_policy

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

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

            ##
            # Lists Instances in a given project and location.
            #
            # @overload list_instances(request, options = nil)
            #   Pass arguments to `list_instances` via a request object, either of type
            #   {::Google::Cloud::AlloyDB::V1alpha::ListInstancesRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::AlloyDB::V1alpha::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]
            #     Required. The name of the parent resource. For the required format, see the
            #     comment on the Instance.name field. Additionally, you can perform an
            #     aggregated list operation by specifying a value with one of the following
            #     formats:
            #      * projects/\\{project}/locations/-/clusters/-
            #      * projects/\\{project}/locations/\\{region}/clusters/-
            #   @param page_size [::Integer]
            #     Optional. Requested page size. Server may return fewer items than
            #     requested. If unspecified, server will pick an appropriate default.
            #   @param page_token [::String]
            #     A token identifying a page of results the server should return.
            #   @param filter [::String]
            #     Optional. Filtering results
            #   @param order_by [::String]
            #     Optional. Hint for how to order the results
            #
            # @yield [response, operation] Access the result along with the RPC operation
            # @yieldparam response [::Gapic::PagedEnumerable<::Google::Cloud::AlloyDB::V1alpha::Instance>]
            # @yieldparam operation [::GRPC::ActiveCall::Operation]
            #
            # @return [::Gapic::PagedEnumerable<::Google::Cloud::AlloyDB::V1alpha::Instance>]
            #
            # @raise [::Google::Cloud::Error] if the RPC is aborted.
            #
            # @example Basic example
            #   require "google/cloud/alloy_db/v1alpha"
            #
            #   # Create a client object. The client can be reused for multiple calls.
            #   client = Google::Cloud::AlloyDB::V1alpha::AlloyDBAdmin::Client.new
            #
            #   # Create a request. To set request fields, pass in keyword arguments.
            #   request = Google::Cloud::AlloyDB::V1alpha::ListInstancesRequest.new
            #
            #   # Call the list_instances method.
            #   result = client.list_instances 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::AlloyDB::V1alpha::Instance.
            #     p item
            #   end
            #
            def list_instances request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::AlloyDB::V1alpha::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, x-goog-user-project and x-goog-api-version 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::AlloyDB::V1alpha::VERSION
              metadata[:"x-goog-api-version"] = API_VERSION unless API_VERSION.empty?
              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.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

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

            ##
            # Gets details of a single Instance.
            #
            # @overload get_instance(request, options = nil)
            #   Pass arguments to `get_instance` via a request object, either of type
            #   {::Google::Cloud::AlloyDB::V1alpha::GetInstanceRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::AlloyDB::V1alpha::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, view: 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]
            #     Required. The name of the resource. For the required format, see the
            #     comment on the Instance.name field.
            #   @param view [::Google::Cloud::AlloyDB::V1alpha::InstanceView]
            #     The view of the instance to return.
            #
            # @yield [response, operation] Access the result along with the RPC operation
            # @yieldparam response [::Google::Cloud::AlloyDB::V1alpha::Instance]
            # @yieldparam operation [::GRPC::ActiveCall::Operation]
            #
            # @return [::Google::Cloud::AlloyDB::V1alpha::Instance]
            #
            # @raise [::Google::Cloud::Error] if the RPC is aborted.
            #
            # @example Basic example
            #   require "google/cloud/alloy_db/v1alpha"
            #
            #   # Create a client object. The client can be reused for multiple calls.
            #   client = Google::Cloud::AlloyDB::V1alpha::AlloyDBAdmin::Client.new
            #
            #   # Create a request. To set request fields, pass in keyword arguments.
            #   request = Google::Cloud::AlloyDB::V1alpha::GetInstanceRequest.new
            #
            #   # Call the get_instance method.
            #   result = client.get_instance request
            #
            #   # The returned object is of type Google::Cloud::AlloyDB::V1alpha::Instance.
            #   p result
            #
            def get_instance request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::AlloyDB::V1alpha::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, x-goog-user-project and x-goog-api-version 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::AlloyDB::V1alpha::VERSION
              metadata[:"x-goog-api-version"] = API_VERSION unless API_VERSION.empty?
              metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

              header_params = {}
              if request.name
                header_params["name"] = request.name
              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_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

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

            ##
            # Creates a new Instance in a given project and location.
            #
            # @overload create_instance(request, options = nil)
            #   Pass arguments to `create_instance` via a request object, either of type
            #   {::Google::Cloud::AlloyDB::V1alpha::CreateInstanceRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::AlloyDB::V1alpha::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, request_id: nil, validate_only: 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]
            #     Required. The name of the parent resource. For the required format, see the
            #     comment on the Instance.name field.
            #   @param instance_id [::String]
            #     Required. ID of the requesting object.
            #   @param instance [::Google::Cloud::AlloyDB::V1alpha::Instance, ::Hash]
            #     Required. The resource being created
            #   @param request_id [::String]
            #     Optional. An optional request ID to identify requests. Specify a unique
            #     request ID so that if you must retry your request, the server ignores the
            #     request if it has already been completed. The server guarantees that for at
            #     least 60 minutes since the first request.
            #
            #     For example, consider a situation where you make an initial request and
            #     the request times out. If you make the request again with the same request
            #     ID, the server can check if the original operation with the same request ID
            #     was received, and if so, ignores the second request. This prevents
            #     clients from accidentally creating duplicate commitments.
            #
            #     The request ID must be a valid UUID with the exception that zero UUID is
            #     not supported (00000000-0000-0000-0000-000000000000).
            #   @param validate_only [::Boolean]
            #     Optional. If set, performs request validation, for example, permission
            #     checks and any other type of validation, but does not actually execute the
            #     create request.
            #
            # @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/alloy_db/v1alpha"
            #
            #   # Create a client object. The client can be reused for multiple calls.
            #   client = Google::Cloud::AlloyDB::V1alpha::AlloyDBAdmin::Client.new
            #
            #   # Create a request. To set request fields, pass in keyword arguments.
            #   request = Google::Cloud::AlloyDB::V1alpha::CreateInstanceRequest.new
            #
            #   # Call the create_instance method.
            #   result = client.create_instance 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 create_instance request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::AlloyDB::V1alpha::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, x-goog-user-project and x-goog-api-version 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::AlloyDB::V1alpha::VERSION
              metadata[:"x-goog-api-version"] = API_VERSION unless API_VERSION.empty?
              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.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

              @alloy_db_admin_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?
                throw :response, response
              end
            rescue ::GRPC::BadStatus => e
              raise ::Google::Cloud::Error.from_error(e)
            end

            ##
            # Creates a new SECONDARY Instance in a given project and location.
            #
            # @overload create_secondary_instance(request, options = nil)
            #   Pass arguments to `create_secondary_instance` via a request object, either of type
            #   {::Google::Cloud::AlloyDB::V1alpha::CreateSecondaryInstanceRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::AlloyDB::V1alpha::CreateSecondaryInstanceRequest, ::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_secondary_instance(parent: nil, instance_id: nil, instance: nil, request_id: nil, validate_only: nil)
            #   Pass arguments to `create_secondary_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]
            #     Required. The name of the parent resource. For the required format, see the
            #     comment on the Instance.name field.
            #   @param instance_id [::String]
            #     Required. ID of the requesting object.
            #   @param instance [::Google::Cloud::AlloyDB::V1alpha::Instance, ::Hash]
            #     Required. The resource being created
            #   @param request_id [::String]
            #     Optional. An optional request ID to identify requests. Specify a unique
            #     request ID so that if you must retry your request, the server ignores the
            #     request if it has already been completed. The server guarantees that for at
            #     least 60 minutes since the first request.
            #
            #     For example, consider a situation where you make an initial request and
            #     the request times out. If you make the request again with the same request
            #     ID, the server can check if the original operation with the same request ID
            #     was received, and if so, ignores the second request. This prevents
            #     clients from accidentally creating duplicate commitments.
            #
            #     The request ID must be a valid UUID with the exception that zero UUID is
            #     not supported (00000000-0000-0000-0000-000000000000).
            #   @param validate_only [::Boolean]
            #     Optional. If set, performs request validation, for example, permission
            #     checks and any other type of validation, but does not actually execute the
            #     create request.
            #
            # @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/alloy_db/v1alpha"
            #
            #   # Create a client object. The client can be reused for multiple calls.
            #   client = Google::Cloud::AlloyDB::V1alpha::AlloyDBAdmin::Client.new
            #
            #   # Create a request. To set request fields, pass in keyword arguments.
            #   request = Google::Cloud::AlloyDB::V1alpha::CreateSecondaryInstanceRequest.new
            #
            #   # Call the create_secondary_instance method.
            #   result = client.create_secondary_instance 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 create_secondary_instance request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::AlloyDB::V1alpha::CreateSecondaryInstanceRequest

              # 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_secondary_instance.metadata.to_h

              # Set x-goog-api-client, x-goog-user-project and x-goog-api-version 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::AlloyDB::V1alpha::VERSION
              metadata[:"x-goog-api-version"] = API_VERSION unless API_VERSION.empty?
              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.create_secondary_instance.timeout,
                                     metadata:     metadata,
                                     retry_policy: @config.rpcs.create_secondary_instance.retry_policy

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

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

            ##
            # Creates new instances under the given project, location and cluster.
            # There can be only one primary instance in a cluster. If the primary
            # instance exists in the cluster as well as this request, then API will
            # throw an error.
            # The primary instance should exist before any read pool instance is
            # created. If the primary instance is a part of the request payload, then
            # the API will take care of creating instances in the correct order.
            # This method is here to support Google-internal use cases, and is not meant
            # for external customers to consume. Please do not start relying on it; its
            # behavior is subject to change without notice.
            #
            # @overload batch_create_instances(request, options = nil)
            #   Pass arguments to `batch_create_instances` via a request object, either of type
            #   {::Google::Cloud::AlloyDB::V1alpha::BatchCreateInstancesRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::AlloyDB::V1alpha::BatchCreateInstancesRequest, ::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 batch_create_instances(parent: nil, requests: nil, request_id: nil)
            #   Pass arguments to `batch_create_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]
            #     Required. The name of the parent resource.
            #   @param requests [::Google::Cloud::AlloyDB::V1alpha::CreateInstanceRequests, ::Hash]
            #     Required. Resources being created.
            #   @param request_id [::String]
            #     Optional. An optional request ID to identify requests. Specify a unique
            #     request ID so that if you must retry your request, the server ignores the
            #     request if it has already been completed. The server guarantees that for at
            #     least 60 minutes since the first request.
            #
            #     For example, consider a situation where you make an initial request and
            #     the request times out. If you make the request again with the same request
            #     ID, the server can check if the original operation with the same request ID
            #     was received, and if so, ignores the second request. This prevents
            #     clients from accidentally creating duplicate commitments.
            #
            #     The request ID must be a valid UUID with the exception that zero UUID is
            #     not supported (00000000-0000-0000-0000-000000000000).
            #
            # @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/alloy_db/v1alpha"
            #
            #   # Create a client object. The client can be reused for multiple calls.
            #   client = Google::Cloud::AlloyDB::V1alpha::AlloyDBAdmin::Client.new
            #
            #   # Create a request. To set request fields, pass in keyword arguments.
            #   request = Google::Cloud::AlloyDB::V1alpha::BatchCreateInstancesRequest.new
            #
            #   # Call the batch_create_instances method.
            #   result = client.batch_create_instances 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 batch_create_instances request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::AlloyDB::V1alpha::BatchCreateInstancesRequest

              # 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.batch_create_instances.metadata.to_h

              # Set x-goog-api-client, x-goog-user-project and x-goog-api-version 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::AlloyDB::V1alpha::VERSION
              metadata[:"x-goog-api-version"] = API_VERSION unless API_VERSION.empty?
              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.batch_create_instances.timeout,
                                     metadata:     metadata,
                                     retry_policy: @config.rpcs.batch_create_instances.retry_policy

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

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

            ##
            # Updates the parameters of a single Instance.
            #
            # @overload update_instance(request, options = nil)
            #   Pass arguments to `update_instance` via a request object, either of type
            #   {::Google::Cloud::AlloyDB::V1alpha::UpdateInstanceRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::AlloyDB::V1alpha::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(update_mask: nil, instance: nil, request_id: nil, validate_only: nil, allow_missing: 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 update_mask [::Google::Protobuf::FieldMask, ::Hash]
            #     Optional. Field mask is used to specify the fields to be overwritten in the
            #     Instance resource by the update.
            #     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 then all fields will be overwritten.
            #   @param instance [::Google::Cloud::AlloyDB::V1alpha::Instance, ::Hash]
            #     Required. The resource being updated
            #   @param request_id [::String]
            #     Optional. An optional request ID to identify requests. Specify a unique
            #     request ID so that if you must retry your request, the server ignores the
            #     request if it has already been completed. The server guarantees that for at
            #     least 60 minutes since the first request.
            #
            #     For example, consider a situation where you make an initial request and
            #     the request times out. If you make the request again with the same request
            #     ID, the server can check if the original operation with the same request ID
            #     was received, and if so, ignores the second request. This prevents
            #     clients from accidentally creating duplicate commitments.
            #
            #     The request ID must be a valid UUID with the exception that zero UUID is
            #     not supported (00000000-0000-0000-0000-000000000000).
            #   @param validate_only [::Boolean]
            #     Optional. If set, performs request validation, for example, permission
            #     checks and any other type of validation, but does not actually execute the
            #     create request.
            #   @param allow_missing [::Boolean]
            #     Optional. If set to true, update succeeds even if instance is not found. In
            #     that case, a new instance is created and `update_mask` is ignored.
            #
            # @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/alloy_db/v1alpha"
            #
            #   # Create a client object. The client can be reused for multiple calls.
            #   client = Google::Cloud::AlloyDB::V1alpha::AlloyDBAdmin::Client.new
            #
            #   # Create a request. To set request fields, pass in keyword arguments.
            #   request = Google::Cloud::AlloyDB::V1alpha::UpdateInstanceRequest.new
            #
            #   # Call the update_instance method.
            #   result = client.update_instance 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 update_instance request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::AlloyDB::V1alpha::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, x-goog-user-project and x-goog-api-version 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::AlloyDB::V1alpha::VERSION
              metadata[:"x-goog-api-version"] = API_VERSION unless API_VERSION.empty?
              metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

              header_params = {}
              if request.instance&.name
                header_params["instance.name"] = request.instance.name
              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.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

              @alloy_db_admin_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?
                throw :response, response
              end
            rescue ::GRPC::BadStatus => e
              raise ::Google::Cloud::Error.from_error(e)
            end

            ##
            # Deletes a single Instance.
            #
            # @overload delete_instance(request, options = nil)
            #   Pass arguments to `delete_instance` via a request object, either of type
            #   {::Google::Cloud::AlloyDB::V1alpha::DeleteInstanceRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::AlloyDB::V1alpha::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, request_id: nil, etag: nil, validate_only: 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]
            #     Required. The name of the resource. For the required format, see the
            #     comment on the Instance.name field.
            #   @param request_id [::String]
            #     Optional. An optional request ID to identify requests. Specify a unique
            #     request ID so that if you must retry your request, the server ignores the
            #     request if it has already been completed. The server guarantees that for at
            #     least 60 minutes since the first request.
            #
            #     For example, consider a situation where you make an initial request and
            #     the request times out. If you make the request again with the same request
            #     ID, the server can check if the original operation with the same request ID
            #     was received, and if so, ignores the second request. This prevents
            #     clients from accidentally creating duplicate commitments.
            #
            #     The request ID must be a valid UUID with the exception that zero UUID is
            #     not supported (00000000-0000-0000-0000-000000000000).
            #   @param etag [::String]
            #     Optional. The current etag of the Instance.
            #     If an etag is provided and does not match the current etag of the Instance,
            #     deletion will be blocked and an ABORTED error will be returned.
            #   @param validate_only [::Boolean]
            #     Optional. If set, performs request validation, for example, permission
            #     checks and any other type of validation, but does not actually execute the
            #     create request.
            #
            # @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/alloy_db/v1alpha"
            #
            #   # Create a client object. The client can be reused for multiple calls.
            #   client = Google::Cloud::AlloyDB::V1alpha::AlloyDBAdmin::Client.new
            #
            #   # Create a request. To set request fields, pass in keyword arguments.
            #   request = Google::Cloud::AlloyDB::V1alpha::DeleteInstanceRequest.new
            #
            #   # Call the delete_instance method.
            #   result = client.delete_instance 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 delete_instance request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::AlloyDB::V1alpha::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, x-goog-user-project and x-goog-api-version 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::AlloyDB::V1alpha::VERSION
              metadata[:"x-goog-api-version"] = API_VERSION unless API_VERSION.empty?
              metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

              header_params = {}
              if request.name
                header_params["name"] = request.name
              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_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

              @alloy_db_admin_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?
                throw :response, response
              end
            rescue ::GRPC::BadStatus => e
              raise ::Google::Cloud::Error.from_error(e)
            end

            ##
            # Forces a Failover for a highly available instance.
            # Failover promotes the HA standby instance as the new primary.
            # Imperative only.
            #
            # @overload failover_instance(request, options = nil)
            #   Pass arguments to `failover_instance` via a request object, either of type
            #   {::Google::Cloud::AlloyDB::V1alpha::FailoverInstanceRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::AlloyDB::V1alpha::FailoverInstanceRequest, ::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 failover_instance(name: nil, request_id: nil, validate_only: nil)
            #   Pass arguments to `failover_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]
            #     Required. The name of the resource. For the required format, see the
            #     comment on the Instance.name field.
            #   @param request_id [::String]
            #     Optional. An optional request ID to identify requests. Specify a unique
            #     request ID so that if you must retry your request, the server ignores the
            #     request if it has already been completed. The server guarantees that for at
            #     least 60 minutes since the first request.
            #
            #     For example, consider a situation where you make an initial request and
            #     the request times out. If you make the request again with the same request
            #     ID, the server can check if the original operation with the same request ID
            #     was received, and if so, ignores the second request. This prevents
            #     clients from accidentally creating duplicate commitments.
            #
            #     The request ID must be a valid UUID with the exception that zero UUID is
            #     not supported (00000000-0000-0000-0000-000000000000).
            #   @param validate_only [::Boolean]
            #     Optional. If set, performs request validation, for example, permission
            #     checks and any other type of validation, but does not actually execute the
            #     create request.
            #
            # @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/alloy_db/v1alpha"
            #
            #   # Create a client object. The client can be reused for multiple calls.
            #   client = Google::Cloud::AlloyDB::V1alpha::AlloyDBAdmin::Client.new
            #
            #   # Create a request. To set request fields, pass in keyword arguments.
            #   request = Google::Cloud::AlloyDB::V1alpha::FailoverInstanceRequest.new
            #
            #   # Call the failover_instance method.
            #   result = client.failover_instance 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 failover_instance request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::AlloyDB::V1alpha::FailoverInstanceRequest

              # 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.failover_instance.metadata.to_h

              # Set x-goog-api-client, x-goog-user-project and x-goog-api-version 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::AlloyDB::V1alpha::VERSION
              metadata[:"x-goog-api-version"] = API_VERSION unless API_VERSION.empty?
              metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

              header_params = {}
              if request.name
                header_params["name"] = request.name
              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.failover_instance.timeout,
                                     metadata:     metadata,
                                     retry_policy: @config.rpcs.failover_instance.retry_policy

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

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

            ##
            # Injects fault in an instance.
            # Imperative only.
            #
            # @overload inject_fault(request, options = nil)
            #   Pass arguments to `inject_fault` via a request object, either of type
            #   {::Google::Cloud::AlloyDB::V1alpha::InjectFaultRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::AlloyDB::V1alpha::InjectFaultRequest, ::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 inject_fault(fault_type: nil, name: nil, request_id: nil, validate_only: nil)
            #   Pass arguments to `inject_fault` 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 fault_type [::Google::Cloud::AlloyDB::V1alpha::InjectFaultRequest::FaultType]
            #     Required. The type of fault to be injected in an instance.
            #   @param name [::String]
            #     Required. The name of the resource. For the required format, see the
            #     comment on the Instance.name field.
            #   @param request_id [::String]
            #     Optional. An optional request ID to identify requests. Specify a unique
            #     request ID so that if you must retry your request, the server ignores the
            #     request if it has already been completed. The server guarantees that for at
            #     least 60 minutes since the first request.
            #
            #     For example, consider a situation where you make an initial request and
            #     the request times out. If you make the request again with the same request
            #     ID, the server can check if the original operation with the same request ID
            #     was received, and if so, ignores the second request. This prevents
            #     clients from accidentally creating duplicate commitments.
            #
            #     The request ID must be a valid UUID with the exception that zero UUID is
            #     not supported (00000000-0000-0000-0000-000000000000).
            #   @param validate_only [::Boolean]
            #     Optional. If set, performs request validation, for example, permission
            #     checks and any other type of validation, but does not actually execute the
            #     create request.
            #
            # @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/alloy_db/v1alpha"
            #
            #   # Create a client object. The client can be reused for multiple calls.
            #   client = Google::Cloud::AlloyDB::V1alpha::AlloyDBAdmin::Client.new
            #
            #   # Create a request. To set request fields, pass in keyword arguments.
            #   request = Google::Cloud::AlloyDB::V1alpha::InjectFaultRequest.new
            #
            #   # Call the inject_fault method.
            #   result = client.inject_fault 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 inject_fault request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::AlloyDB::V1alpha::InjectFaultRequest

              # 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.inject_fault.metadata.to_h

              # Set x-goog-api-client, x-goog-user-project and x-goog-api-version 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::AlloyDB::V1alpha::VERSION
              metadata[:"x-goog-api-version"] = API_VERSION unless API_VERSION.empty?
              metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

              header_params = {}
              if request.name
                header_params["name"] = request.name
              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.inject_fault.timeout,
                                     metadata:     metadata,
                                     retry_policy: @config.rpcs.inject_fault.retry_policy

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

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

            ##
            # Restart an Instance in a cluster.
            # Imperative only.
            #
            # @overload restart_instance(request, options = nil)
            #   Pass arguments to `restart_instance` via a request object, either of type
            #   {::Google::Cloud::AlloyDB::V1alpha::RestartInstanceRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::AlloyDB::V1alpha::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, request_id: nil, validate_only: nil, node_ids: 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]
            #     Required. The name of the resource. For the required format, see the
            #     comment on the Instance.name field.
            #   @param request_id [::String]
            #     Optional. An optional request ID to identify requests. Specify a unique
            #     request ID so that if you must retry your request, the server ignores the
            #     request if it has already been completed. The server guarantees that for at
            #     least 60 minutes since the first request.
            #
            #     For example, consider a situation where you make an initial request and
            #     the request times out. If you make the request again with the same request
            #     ID, the server can check if the original operation with the same request ID
            #     was received, and if so, ignores the second request. This prevents
            #     clients from accidentally creating duplicate commitments.
            #
            #     The request ID must be a valid UUID with the exception that zero UUID is
            #     not supported (00000000-0000-0000-0000-000000000000).
            #   @param validate_only [::Boolean]
            #     Optional. If set, performs request validation, for example, permission
            #     checks and any other type of validation, but does not actually execute the
            #     create request.
            #   @param node_ids [::Array<::String>]
            #     Optional. Full name of the nodes as obtained from INSTANCE_VIEW_FULL to
            #     restart upon. Applicable only to read instances.
            #
            # @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/alloy_db/v1alpha"
            #
            #   # Create a client object. The client can be reused for multiple calls.
            #   client = Google::Cloud::AlloyDB::V1alpha::AlloyDBAdmin::Client.new
            #
            #   # Create a request. To set request fields, pass in keyword arguments.
            #   request = Google::Cloud::AlloyDB::V1alpha::RestartInstanceRequest.new
            #
            #   # Call the restart_instance method.
            #   result = client.restart_instance 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 restart_instance request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::AlloyDB::V1alpha::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, x-goog-user-project and x-goog-api-version 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::AlloyDB::V1alpha::VERSION
              metadata[:"x-goog-api-version"] = API_VERSION unless API_VERSION.empty?
              metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

              header_params = {}
              if request.name
                header_params["name"] = request.name
              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.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

              @alloy_db_admin_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?
                throw :response, response
              end
            rescue ::GRPC::BadStatus => e
              raise ::Google::Cloud::Error.from_error(e)
            end

            ##
            # Executes a SQL statement in a database inside an AlloyDB instance.
            #
            # @overload execute_sql(request, options = nil)
            #   Pass arguments to `execute_sql` via a request object, either of type
            #   {::Google::Cloud::AlloyDB::V1alpha::ExecuteSqlRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::AlloyDB::V1alpha::ExecuteSqlRequest, ::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 execute_sql(password: nil, instance: nil, database: nil, user: nil, sql_statement: nil, validate_only: nil)
            #   Pass arguments to `execute_sql` 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 password [::String]
            #     Optional. The database native user’s password.
            #   @param instance [::String]
            #     Required. The instance where the SQL will be executed. For the required
            #     format, see the comment on the Instance.name field.
            #   @param database [::String]
            #     Required. Name of the database where the query will be executed.
            #     Note - Value provided should be the same as expected from `SELECT
            #     current_database();` and NOT as a resource reference.
            #   @param user [::String]
            #     Required. Database user to be used for executing the SQL.
            #     Note - Value provided should be the same as expected from
            #     `SELECT current_user;` and NOT as a resource reference.
            #   @param sql_statement [::String]
            #     Required. SQL statement to execute on database. Any valid statement is
            #     permitted, including DDL, DML, DQL statements.
            #   @param validate_only [::Boolean]
            #     Optional. If set, validates the sql statement by performing
            #     syntax and semantic validation and doesn't execute the query.
            #
            # @yield [response, operation] Access the result along with the RPC operation
            # @yieldparam response [::Google::Cloud::AlloyDB::V1alpha::ExecuteSqlResponse]
            # @yieldparam operation [::GRPC::ActiveCall::Operation]
            #
            # @return [::Google::Cloud::AlloyDB::V1alpha::ExecuteSqlResponse]
            #
            # @raise [::Google::Cloud::Error] if the RPC is aborted.
            #
            # @example Basic example
            #   require "google/cloud/alloy_db/v1alpha"
            #
            #   # Create a client object. The client can be reused for multiple calls.
            #   client = Google::Cloud::AlloyDB::V1alpha::AlloyDBAdmin::Client.new
            #
            #   # Create a request. To set request fields, pass in keyword arguments.
            #   request = Google::Cloud::AlloyDB::V1alpha::ExecuteSqlRequest.new
            #
            #   # Call the execute_sql method.
            #   result = client.execute_sql request
            #
            #   # The returned object is of type Google::Cloud::AlloyDB::V1alpha::ExecuteSqlResponse.
            #   p result
            #
            def execute_sql request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::AlloyDB::V1alpha::ExecuteSqlRequest

              # 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.execute_sql.metadata.to_h

              # Set x-goog-api-client, x-goog-user-project and x-goog-api-version 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::AlloyDB::V1alpha::VERSION
              metadata[:"x-goog-api-version"] = API_VERSION unless API_VERSION.empty?
              metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

              header_params = {}
              if request.instance
                header_params["instance"] = request.instance
              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.execute_sql.timeout,
                                     metadata:     metadata,
                                     retry_policy: @config.rpcs.execute_sql.retry_policy

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

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

            ##
            # Lists Backups in a given project and location.
            #
            # @overload list_backups(request, options = nil)
            #   Pass arguments to `list_backups` via a request object, either of type
            #   {::Google::Cloud::AlloyDB::V1alpha::ListBackupsRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::AlloyDB::V1alpha::ListBackupsRequest, ::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_backups(parent: nil, page_size: nil, page_token: nil, filter: nil, order_by: nil)
            #   Pass arguments to `list_backups` 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. Parent value for ListBackupsRequest
            #   @param page_size [::Integer]
            #     Requested page size. Server may return fewer items than requested.
            #     If unspecified, server will pick an appropriate default.
            #   @param page_token [::String]
            #     A token identifying a page of results the server should return.
            #   @param filter [::String]
            #     Filtering results
            #   @param order_by [::String]
            #     Hint for how to order the results
            #
            # @yield [response, operation] Access the result along with the RPC operation
            # @yieldparam response [::Gapic::PagedEnumerable<::Google::Cloud::AlloyDB::V1alpha::Backup>]
            # @yieldparam operation [::GRPC::ActiveCall::Operation]
            #
            # @return [::Gapic::PagedEnumerable<::Google::Cloud::AlloyDB::V1alpha::Backup>]
            #
            # @raise [::Google::Cloud::Error] if the RPC is aborted.
            #
            # @example Basic example
            #   require "google/cloud/alloy_db/v1alpha"
            #
            #   # Create a client object. The client can be reused for multiple calls.
            #   client = Google::Cloud::AlloyDB::V1alpha::AlloyDBAdmin::Client.new
            #
            #   # Create a request. To set request fields, pass in keyword arguments.
            #   request = Google::Cloud::AlloyDB::V1alpha::ListBackupsRequest.new
            #
            #   # Call the list_backups method.
            #   result = client.list_backups 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::AlloyDB::V1alpha::Backup.
            #     p item
            #   end
            #
            def list_backups request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::AlloyDB::V1alpha::ListBackupsRequest

              # 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_backups.metadata.to_h

              # Set x-goog-api-client, x-goog-user-project and x-goog-api-version 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::AlloyDB::V1alpha::VERSION
              metadata[:"x-goog-api-version"] = API_VERSION unless API_VERSION.empty?
              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.list_backups.timeout,
                                     metadata:     metadata,
                                     retry_policy: @config.rpcs.list_backups.retry_policy

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

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

            ##
            # Gets details of a single Backup.
            #
            # @overload get_backup(request, options = nil)
            #   Pass arguments to `get_backup` via a request object, either of type
            #   {::Google::Cloud::AlloyDB::V1alpha::GetBackupRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::AlloyDB::V1alpha::GetBackupRequest, ::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_backup(name: nil)
            #   Pass arguments to `get_backup` 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]
            #     Required. Name of the resource
            #
            # @yield [response, operation] Access the result along with the RPC operation
            # @yieldparam response [::Google::Cloud::AlloyDB::V1alpha::Backup]
            # @yieldparam operation [::GRPC::ActiveCall::Operation]
            #
            # @return [::Google::Cloud::AlloyDB::V1alpha::Backup]
            #
            # @raise [::Google::Cloud::Error] if the RPC is aborted.
            #
            # @example Basic example
            #   require "google/cloud/alloy_db/v1alpha"
            #
            #   # Create a client object. The client can be reused for multiple calls.
            #   client = Google::Cloud::AlloyDB::V1alpha::AlloyDBAdmin::Client.new
            #
            #   # Create a request. To set request fields, pass in keyword arguments.
            #   request = Google::Cloud::AlloyDB::V1alpha::GetBackupRequest.new
            #
            #   # Call the get_backup method.
            #   result = client.get_backup request
            #
            #   # The returned object is of type Google::Cloud::AlloyDB::V1alpha::Backup.
            #   p result
            #
            def get_backup request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::AlloyDB::V1alpha::GetBackupRequest

              # 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_backup.metadata.to_h

              # Set x-goog-api-client, x-goog-user-project and x-goog-api-version 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::AlloyDB::V1alpha::VERSION
              metadata[:"x-goog-api-version"] = API_VERSION unless API_VERSION.empty?
              metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

              header_params = {}
              if request.name
                header_params["name"] = request.name
              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_backup.timeout,
                                     metadata:     metadata,
                                     retry_policy: @config.rpcs.get_backup.retry_policy

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

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

            ##
            # Creates a new Backup in a given project and location.
            #
            # @overload create_backup(request, options = nil)
            #   Pass arguments to `create_backup` via a request object, either of type
            #   {::Google::Cloud::AlloyDB::V1alpha::CreateBackupRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::AlloyDB::V1alpha::CreateBackupRequest, ::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_backup(parent: nil, backup_id: nil, backup: nil, request_id: nil, validate_only: nil)
            #   Pass arguments to `create_backup` 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. Value for parent.
            #   @param backup_id [::String]
            #     Required. ID of the requesting object.
            #   @param backup [::Google::Cloud::AlloyDB::V1alpha::Backup, ::Hash]
            #     Required. The resource being created
            #   @param request_id [::String]
            #     Optional. An optional request ID to identify requests. Specify a unique
            #     request ID so that if you must retry your request, the server ignores the
            #     request if it has already been completed. The server guarantees that for at
            #     least 60 minutes since the first request.
            #
            #     For example, consider a situation where you make an initial request and
            #     the request times out. If you make the request again with the same request
            #     ID, the server can check if the original operation with the same request ID
            #     was received, and if so, ignores the second request. This prevents
            #     clients from accidentally creating duplicate commitments.
            #
            #     The request ID must be a valid UUID with the exception that zero UUID is
            #     not supported (00000000-0000-0000-0000-000000000000).
            #   @param validate_only [::Boolean]
            #     Optional. If set, the backend validates the request, but doesn't actually
            #     execute it.
            #
            # @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/alloy_db/v1alpha"
            #
            #   # Create a client object. The client can be reused for multiple calls.
            #   client = Google::Cloud::AlloyDB::V1alpha::AlloyDBAdmin::Client.new
            #
            #   # Create a request. To set request fields, pass in keyword arguments.
            #   request = Google::Cloud::AlloyDB::V1alpha::CreateBackupRequest.new
            #
            #   # Call the create_backup method.
            #   result = client.create_backup 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 create_backup request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::AlloyDB::V1alpha::CreateBackupRequest

              # 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_backup.metadata.to_h

              # Set x-goog-api-client, x-goog-user-project and x-goog-api-version 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::AlloyDB::V1alpha::VERSION
              metadata[:"x-goog-api-version"] = API_VERSION unless API_VERSION.empty?
              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.create_backup.timeout,
                                     metadata:     metadata,
                                     retry_policy: @config.rpcs.create_backup.retry_policy

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

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

            ##
            # Updates the parameters of a single Backup.
            #
            # @overload update_backup(request, options = nil)
            #   Pass arguments to `update_backup` via a request object, either of type
            #   {::Google::Cloud::AlloyDB::V1alpha::UpdateBackupRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::AlloyDB::V1alpha::UpdateBackupRequest, ::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_backup(update_mask: nil, backup: nil, request_id: nil, validate_only: nil, allow_missing: nil)
            #   Pass arguments to `update_backup` 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 update_mask [::Google::Protobuf::FieldMask, ::Hash]
            #     Optional. Field mask is used to specify the fields to be overwritten in the
            #     Backup resource by the update.
            #     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 then all fields will be overwritten.
            #   @param backup [::Google::Cloud::AlloyDB::V1alpha::Backup, ::Hash]
            #     Required. The resource being updated
            #   @param request_id [::String]
            #     Optional. An optional request ID to identify requests. Specify a unique
            #     request ID so that if you must retry your request, the server ignores the
            #     request if it has already been completed. The server guarantees that for at
            #     least 60 minutes since the first request.
            #
            #     For example, consider a situation where you make an initial request and
            #     the request times out. If you make the request again with the same request
            #     ID, the server can check if the original operation with the same request ID
            #     was received, and if so, ignores the second request. This prevents
            #     clients from accidentally creating duplicate commitments.
            #
            #     The request ID must be a valid UUID with the exception that zero UUID is
            #     not supported (00000000-0000-0000-0000-000000000000).
            #   @param validate_only [::Boolean]
            #     Optional. If set, the backend validates the request, but doesn't actually
            #     execute it.
            #   @param allow_missing [::Boolean]
            #     Optional. If set to true, update succeeds even if instance is not found. In
            #     that case, a new backup is created and `update_mask` is ignored.
            #
            # @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/alloy_db/v1alpha"
            #
            #   # Create a client object. The client can be reused for multiple calls.
            #   client = Google::Cloud::AlloyDB::V1alpha::AlloyDBAdmin::Client.new
            #
            #   # Create a request. To set request fields, pass in keyword arguments.
            #   request = Google::Cloud::AlloyDB::V1alpha::UpdateBackupRequest.new
            #
            #   # Call the update_backup method.
            #   result = client.update_backup 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 update_backup request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::AlloyDB::V1alpha::UpdateBackupRequest

              # 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_backup.metadata.to_h

              # Set x-goog-api-client, x-goog-user-project and x-goog-api-version 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::AlloyDB::V1alpha::VERSION
              metadata[:"x-goog-api-version"] = API_VERSION unless API_VERSION.empty?
              metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

              header_params = {}
              if request.backup&.name
                header_params["backup.name"] = request.backup.name
              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.update_backup.timeout,
                                     metadata:     metadata,
                                     retry_policy: @config.rpcs.update_backup.retry_policy

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

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

            ##
            # Deletes a single Backup.
            #
            # @overload delete_backup(request, options = nil)
            #   Pass arguments to `delete_backup` via a request object, either of type
            #   {::Google::Cloud::AlloyDB::V1alpha::DeleteBackupRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::AlloyDB::V1alpha::DeleteBackupRequest, ::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_backup(name: nil, request_id: nil, validate_only: nil, etag: nil)
            #   Pass arguments to `delete_backup` 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]
            #     Required. Name of the resource. For the required format, see the comment on
            #     the Backup.name field.
            #   @param request_id [::String]
            #     Optional. An optional request ID to identify requests. Specify a unique
            #     request ID so that if you must retry your request, the server ignores the
            #     request if it has already been completed. The server guarantees that for at
            #     least 60 minutes since the first request.
            #
            #     For example, consider a situation where you make an initial request and
            #     the request times out. If you make the request again with the same request
            #     ID, the server can check if the original operation with the same request ID
            #     was received, and if so, ignores the second request. This prevents
            #     clients from accidentally creating duplicate commitments.
            #
            #     The request ID must be a valid UUID with the exception that zero UUID is
            #     not supported (00000000-0000-0000-0000-000000000000).
            #   @param validate_only [::Boolean]
            #     Optional. If set, the backend validates the request, but doesn't actually
            #     execute it.
            #   @param etag [::String]
            #     Optional. The current etag of the Backup.
            #     If an etag is provided and does not match the current etag of the Backup,
            #     deletion will be blocked and an ABORTED error will be returned.
            #
            # @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/alloy_db/v1alpha"
            #
            #   # Create a client object. The client can be reused for multiple calls.
            #   client = Google::Cloud::AlloyDB::V1alpha::AlloyDBAdmin::Client.new
            #
            #   # Create a request. To set request fields, pass in keyword arguments.
            #   request = Google::Cloud::AlloyDB::V1alpha::DeleteBackupRequest.new
            #
            #   # Call the delete_backup method.
            #   result = client.delete_backup 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 delete_backup request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::AlloyDB::V1alpha::DeleteBackupRequest

              # 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_backup.metadata.to_h

              # Set x-goog-api-client, x-goog-user-project and x-goog-api-version 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::AlloyDB::V1alpha::VERSION
              metadata[:"x-goog-api-version"] = API_VERSION unless API_VERSION.empty?
              metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

              header_params = {}
              if request.name
                header_params["name"] = request.name
              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_backup.timeout,
                                     metadata:     metadata,
                                     retry_policy: @config.rpcs.delete_backup.retry_policy

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

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

            ##
            # Lists SupportedDatabaseFlags for a given project and location.
            #
            # @overload list_supported_database_flags(request, options = nil)
            #   Pass arguments to `list_supported_database_flags` via a request object, either of type
            #   {::Google::Cloud::AlloyDB::V1alpha::ListSupportedDatabaseFlagsRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::AlloyDB::V1alpha::ListSupportedDatabaseFlagsRequest, ::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_supported_database_flags(parent: nil, page_size: nil, page_token: nil, scope: nil)
            #   Pass arguments to `list_supported_database_flags` 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 name of the parent resource. The required format is:
            #      * projects/\\{project}/locations/\\{location}
            #
            #     Regardless of the parent specified here, as long it is contains a valid
            #     project and location, the service will return a static list of supported
            #     flags resources. Note that we do not yet support region-specific
            #     flags.
            #   @param page_size [::Integer]
            #     Requested page size. Server may return fewer items than requested.
            #     If unspecified, server will pick an appropriate default.
            #   @param page_token [::String]
            #     A token identifying a page of results the server should return.
            #   @param scope [::Google::Cloud::AlloyDB::V1alpha::SupportedDatabaseFlag::Scope]
            #     Optional. The scope for which supported flags are requested. If not
            #     specified, default is DATABASE.
            #
            # @yield [response, operation] Access the result along with the RPC operation
            # @yieldparam response [::Gapic::PagedEnumerable<::Google::Cloud::AlloyDB::V1alpha::SupportedDatabaseFlag>]
            # @yieldparam operation [::GRPC::ActiveCall::Operation]
            #
            # @return [::Gapic::PagedEnumerable<::Google::Cloud::AlloyDB::V1alpha::SupportedDatabaseFlag>]
            #
            # @raise [::Google::Cloud::Error] if the RPC is aborted.
            #
            # @example Basic example
            #   require "google/cloud/alloy_db/v1alpha"
            #
            #   # Create a client object. The client can be reused for multiple calls.
            #   client = Google::Cloud::AlloyDB::V1alpha::AlloyDBAdmin::Client.new
            #
            #   # Create a request. To set request fields, pass in keyword arguments.
            #   request = Google::Cloud::AlloyDB::V1alpha::ListSupportedDatabaseFlagsRequest.new
            #
            #   # Call the list_supported_database_flags method.
            #   result = client.list_supported_database_flags 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::AlloyDB::V1alpha::SupportedDatabaseFlag.
            #     p item
            #   end
            #
            def list_supported_database_flags request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::AlloyDB::V1alpha::ListSupportedDatabaseFlagsRequest

              # 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_supported_database_flags.metadata.to_h

              # Set x-goog-api-client, x-goog-user-project and x-goog-api-version 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::AlloyDB::V1alpha::VERSION
              metadata[:"x-goog-api-version"] = API_VERSION unless API_VERSION.empty?
              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.list_supported_database_flags.timeout,
                                     metadata:     metadata,
                                     retry_policy: @config.rpcs.list_supported_database_flags.retry_policy

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

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

            ##
            # Generate a client certificate signed by a Cluster CA.
            # The sole purpose of this endpoint is to support AlloyDB connectors and the
            # Auth Proxy client. The endpoint's behavior is subject to change without
            # notice, so do not rely on its behavior remaining constant. Future changes
            # will not break AlloyDB connectors or the Auth Proxy client.
            #
            # @overload generate_client_certificate(request, options = nil)
            #   Pass arguments to `generate_client_certificate` via a request object, either of type
            #   {::Google::Cloud::AlloyDB::V1alpha::GenerateClientCertificateRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::AlloyDB::V1alpha::GenerateClientCertificateRequest, ::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 generate_client_certificate(parent: nil, request_id: nil, pem_csr: nil, cert_duration: nil, public_key: nil, use_metadata_exchange: nil)
            #   Pass arguments to `generate_client_certificate` 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 name of the parent resource. The required format is:
            #      * projects/\\{project}/locations/\\{location}/clusters/\\{cluster}
            #   @param request_id [::String]
            #     Optional. An optional request ID to identify requests. Specify a unique
            #     request ID so that if you must retry your request, the server ignores the
            #     request if it has already been completed. The server guarantees that for at
            #     least 60 minutes since the first request.
            #
            #     For example, consider a situation where you make an initial request and
            #     the request times out. If you make the request again with the same request
            #     ID, the server can check if the original operation with the same request ID
            #     was received, and if so, ignores the second request. This prevents
            #     clients from accidentally creating duplicate commitments.
            #
            #     The request ID must be a valid UUID with the exception that zero UUID is
            #     not supported (00000000-0000-0000-0000-000000000000).
            #   @param pem_csr [::String]
            #     Optional. A pem-encoded X.509 certificate signing request (CSR). It is
            #     recommended to use public_key instead.
            #   @param cert_duration [::Google::Protobuf::Duration, ::Hash]
            #     Optional. An optional hint to the endpoint to generate the client
            #     certificate with the requested duration. The duration can be from 1 hour to
            #     24 hours. The endpoint may or may not honor the hint. If the hint is left
            #     unspecified or is not honored, then the endpoint will pick an appropriate
            #     default duration.
            #   @param public_key [::String]
            #     Optional. The public key from the client.
            #   @param use_metadata_exchange [::Boolean]
            #     Optional. An optional hint to the endpoint to generate a client certificate
            #     that can be used by AlloyDB connectors to exchange additional metadata with
            #     the server after TLS handshake.
            #
            # @yield [response, operation] Access the result along with the RPC operation
            # @yieldparam response [::Google::Cloud::AlloyDB::V1alpha::GenerateClientCertificateResponse]
            # @yieldparam operation [::GRPC::ActiveCall::Operation]
            #
            # @return [::Google::Cloud::AlloyDB::V1alpha::GenerateClientCertificateResponse]
            #
            # @raise [::Google::Cloud::Error] if the RPC is aborted.
            #
            # @example Basic example
            #   require "google/cloud/alloy_db/v1alpha"
            #
            #   # Create a client object. The client can be reused for multiple calls.
            #   client = Google::Cloud::AlloyDB::V1alpha::AlloyDBAdmin::Client.new
            #
            #   # Create a request. To set request fields, pass in keyword arguments.
            #   request = Google::Cloud::AlloyDB::V1alpha::GenerateClientCertificateRequest.new
            #
            #   # Call the generate_client_certificate method.
            #   result = client.generate_client_certificate request
            #
            #   # The returned object is of type Google::Cloud::AlloyDB::V1alpha::GenerateClientCertificateResponse.
            #   p result
            #
            def generate_client_certificate request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::AlloyDB::V1alpha::GenerateClientCertificateRequest

              # 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.generate_client_certificate.metadata.to_h

              # Set x-goog-api-client, x-goog-user-project and x-goog-api-version 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::AlloyDB::V1alpha::VERSION
              metadata[:"x-goog-api-version"] = API_VERSION unless API_VERSION.empty?
              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.generate_client_certificate.timeout,
                                     metadata:     metadata,
                                     retry_policy: @config.rpcs.generate_client_certificate.retry_policy

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

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

            ##
            # Get instance metadata used for a connection.
            #
            # @overload get_connection_info(request, options = nil)
            #   Pass arguments to `get_connection_info` via a request object, either of type
            #   {::Google::Cloud::AlloyDB::V1alpha::GetConnectionInfoRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::AlloyDB::V1alpha::GetConnectionInfoRequest, ::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_connection_info(parent: nil, request_id: nil)
            #   Pass arguments to `get_connection_info` 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 name of the parent resource. The required format is:
            #     projects/\\{project}/locations/\\{location}/clusters/\\{cluster}/instances/\\{instance}
            #   @param request_id [::String]
            #     Optional. An optional request ID to identify requests. Specify a unique
            #     request ID so that if you must retry your request, the server ignores the
            #     request if it has already been completed. The server guarantees that for at
            #     least 60 minutes since the first request.
            #
            #     For example, consider a situation where you make an initial request and
            #     the request times out. If you make the request again with the same request
            #     ID, the server can check if the original operation with the same request ID
            #     was received, and if so, ignores the second request. This prevents
            #     clients from accidentally creating duplicate commitments.
            #
            #     The request ID must be a valid UUID with the exception that zero UUID is
            #     not supported (00000000-0000-0000-0000-000000000000).
            #
            # @yield [response, operation] Access the result along with the RPC operation
            # @yieldparam response [::Google::Cloud::AlloyDB::V1alpha::ConnectionInfo]
            # @yieldparam operation [::GRPC::ActiveCall::Operation]
            #
            # @return [::Google::Cloud::AlloyDB::V1alpha::ConnectionInfo]
            #
            # @raise [::Google::Cloud::Error] if the RPC is aborted.
            #
            # @example Basic example
            #   require "google/cloud/alloy_db/v1alpha"
            #
            #   # Create a client object. The client can be reused for multiple calls.
            #   client = Google::Cloud::AlloyDB::V1alpha::AlloyDBAdmin::Client.new
            #
            #   # Create a request. To set request fields, pass in keyword arguments.
            #   request = Google::Cloud::AlloyDB::V1alpha::GetConnectionInfoRequest.new
            #
            #   # Call the get_connection_info method.
            #   result = client.get_connection_info request
            #
            #   # The returned object is of type Google::Cloud::AlloyDB::V1alpha::ConnectionInfo.
            #   p result
            #
            def get_connection_info request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::AlloyDB::V1alpha::GetConnectionInfoRequest

              # 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_connection_info.metadata.to_h

              # Set x-goog-api-client, x-goog-user-project and x-goog-api-version 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::AlloyDB::V1alpha::VERSION
              metadata[:"x-goog-api-version"] = API_VERSION unless API_VERSION.empty?
              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_connection_info.timeout,
                                     metadata:     metadata,
                                     retry_policy: @config.rpcs.get_connection_info.retry_policy

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

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

            ##
            # Lists Users in a given project and location.
            #
            # @overload list_users(request, options = nil)
            #   Pass arguments to `list_users` via a request object, either of type
            #   {::Google::Cloud::AlloyDB::V1alpha::ListUsersRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::AlloyDB::V1alpha::ListUsersRequest, ::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_users(parent: nil, page_size: nil, page_token: nil, filter: nil, order_by: nil)
            #   Pass arguments to `list_users` 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. Parent value for ListUsersRequest
            #   @param page_size [::Integer]
            #     Optional. Requested page size. Server may return fewer items than
            #     requested. If unspecified, server will pick an appropriate default.
            #   @param page_token [::String]
            #     Optional. A token identifying a page of results the server should return.
            #   @param filter [::String]
            #     Optional. Filtering results
            #   @param order_by [::String]
            #     Optional. Hint for how to order the results
            #
            # @yield [response, operation] Access the result along with the RPC operation
            # @yieldparam response [::Gapic::PagedEnumerable<::Google::Cloud::AlloyDB::V1alpha::User>]
            # @yieldparam operation [::GRPC::ActiveCall::Operation]
            #
            # @return [::Gapic::PagedEnumerable<::Google::Cloud::AlloyDB::V1alpha::User>]
            #
            # @raise [::Google::Cloud::Error] if the RPC is aborted.
            #
            # @example Basic example
            #   require "google/cloud/alloy_db/v1alpha"
            #
            #   # Create a client object. The client can be reused for multiple calls.
            #   client = Google::Cloud::AlloyDB::V1alpha::AlloyDBAdmin::Client.new
            #
            #   # Create a request. To set request fields, pass in keyword arguments.
            #   request = Google::Cloud::AlloyDB::V1alpha::ListUsersRequest.new
            #
            #   # Call the list_users method.
            #   result = client.list_users 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::AlloyDB::V1alpha::User.
            #     p item
            #   end
            #
            def list_users request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::AlloyDB::V1alpha::ListUsersRequest

              # 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_users.metadata.to_h

              # Set x-goog-api-client, x-goog-user-project and x-goog-api-version 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::AlloyDB::V1alpha::VERSION
              metadata[:"x-goog-api-version"] = API_VERSION unless API_VERSION.empty?
              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.list_users.timeout,
                                     metadata:     metadata,
                                     retry_policy: @config.rpcs.list_users.retry_policy

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

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

            ##
            # Gets details of a single User.
            #
            # @overload get_user(request, options = nil)
            #   Pass arguments to `get_user` via a request object, either of type
            #   {::Google::Cloud::AlloyDB::V1alpha::GetUserRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::AlloyDB::V1alpha::GetUserRequest, ::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_user(name: nil)
            #   Pass arguments to `get_user` 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]
            #     Required. The name of the resource. For the required format, see the
            #     comment on the User.name field.
            #
            # @yield [response, operation] Access the result along with the RPC operation
            # @yieldparam response [::Google::Cloud::AlloyDB::V1alpha::User]
            # @yieldparam operation [::GRPC::ActiveCall::Operation]
            #
            # @return [::Google::Cloud::AlloyDB::V1alpha::User]
            #
            # @raise [::Google::Cloud::Error] if the RPC is aborted.
            #
            # @example Basic example
            #   require "google/cloud/alloy_db/v1alpha"
            #
            #   # Create a client object. The client can be reused for multiple calls.
            #   client = Google::Cloud::AlloyDB::V1alpha::AlloyDBAdmin::Client.new
            #
            #   # Create a request. To set request fields, pass in keyword arguments.
            #   request = Google::Cloud::AlloyDB::V1alpha::GetUserRequest.new
            #
            #   # Call the get_user method.
            #   result = client.get_user request
            #
            #   # The returned object is of type Google::Cloud::AlloyDB::V1alpha::User.
            #   p result
            #
            def get_user request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::AlloyDB::V1alpha::GetUserRequest

              # 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_user.metadata.to_h

              # Set x-goog-api-client, x-goog-user-project and x-goog-api-version 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::AlloyDB::V1alpha::VERSION
              metadata[:"x-goog-api-version"] = API_VERSION unless API_VERSION.empty?
              metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

              header_params = {}
              if request.name
                header_params["name"] = request.name
              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_user.timeout,
                                     metadata:     metadata,
                                     retry_policy: @config.rpcs.get_user.retry_policy

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

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

            ##
            # Creates a new User in a given project, location, and cluster.
            #
            # @overload create_user(request, options = nil)
            #   Pass arguments to `create_user` via a request object, either of type
            #   {::Google::Cloud::AlloyDB::V1alpha::CreateUserRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::AlloyDB::V1alpha::CreateUserRequest, ::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_user(parent: nil, user_id: nil, user: nil, request_id: nil, validate_only: nil)
            #   Pass arguments to `create_user` 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. Value for parent.
            #   @param user_id [::String]
            #     Required. ID of the requesting object.
            #   @param user [::Google::Cloud::AlloyDB::V1alpha::User, ::Hash]
            #     Required. The resource being created
            #   @param request_id [::String]
            #     Optional. An optional request ID to identify requests. Specify a unique
            #     request ID so that if you must retry your request, the server ignores the
            #     request if it has already been completed. The server guarantees that for at
            #     least 60 minutes since the first request.
            #
            #     For example, consider a situation where you make an initial request and
            #     the request times out. If you make the request again with the same request
            #     ID, the server can check if the original operation with the same request ID
            #     was received, and if so, ignores the second request. This prevents
            #     clients from accidentally creating duplicate commitments.
            #
            #     The request ID must be a valid UUID with the exception that zero UUID is
            #     not supported (00000000-0000-0000-0000-000000000000).
            #   @param validate_only [::Boolean]
            #     Optional. If set, the backend validates the request, but doesn't actually
            #     execute it.
            #
            # @yield [response, operation] Access the result along with the RPC operation
            # @yieldparam response [::Google::Cloud::AlloyDB::V1alpha::User]
            # @yieldparam operation [::GRPC::ActiveCall::Operation]
            #
            # @return [::Google::Cloud::AlloyDB::V1alpha::User]
            #
            # @raise [::Google::Cloud::Error] if the RPC is aborted.
            #
            # @example Basic example
            #   require "google/cloud/alloy_db/v1alpha"
            #
            #   # Create a client object. The client can be reused for multiple calls.
            #   client = Google::Cloud::AlloyDB::V1alpha::AlloyDBAdmin::Client.new
            #
            #   # Create a request. To set request fields, pass in keyword arguments.
            #   request = Google::Cloud::AlloyDB::V1alpha::CreateUserRequest.new
            #
            #   # Call the create_user method.
            #   result = client.create_user request
            #
            #   # The returned object is of type Google::Cloud::AlloyDB::V1alpha::User.
            #   p result
            #
            def create_user request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::AlloyDB::V1alpha::CreateUserRequest

              # 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_user.metadata.to_h

              # Set x-goog-api-client, x-goog-user-project and x-goog-api-version 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::AlloyDB::V1alpha::VERSION
              metadata[:"x-goog-api-version"] = API_VERSION unless API_VERSION.empty?
              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.create_user.timeout,
                                     metadata:     metadata,
                                     retry_policy: @config.rpcs.create_user.retry_policy

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

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

            ##
            # Updates the parameters of a single User.
            #
            # @overload update_user(request, options = nil)
            #   Pass arguments to `update_user` via a request object, either of type
            #   {::Google::Cloud::AlloyDB::V1alpha::UpdateUserRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::AlloyDB::V1alpha::UpdateUserRequest, ::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_user(update_mask: nil, user: nil, request_id: nil, validate_only: nil, allow_missing: nil)
            #   Pass arguments to `update_user` 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 update_mask [::Google::Protobuf::FieldMask, ::Hash]
            #     Optional. Field mask is used to specify the fields to be overwritten in the
            #     User resource by the update.
            #     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 then all fields will be overwritten.
            #   @param user [::Google::Cloud::AlloyDB::V1alpha::User, ::Hash]
            #     Required. The resource being updated
            #   @param request_id [::String]
            #     Optional. An optional request ID to identify requests. Specify a unique
            #     request ID so that if you must retry your request, the server ignores the
            #     request if it has already been completed. The server guarantees that for at
            #     least 60 minutes since the first request.
            #
            #     For example, consider a situation where you make an initial request and
            #     the request times out. If you make the request again with the same request
            #     ID, the server can check if the original operation with the same request ID
            #     was received, and if so, ignores the second request. This prevents
            #     clients from accidentally creating duplicate commitments.
            #
            #     The request ID must be a valid UUID with the exception that zero UUID is
            #     not supported (00000000-0000-0000-0000-000000000000).
            #   @param validate_only [::Boolean]
            #     Optional. If set, the backend validates the request, but doesn't actually
            #     execute it.
            #   @param allow_missing [::Boolean]
            #     Optional. Allow missing fields in the update mask.
            #
            # @yield [response, operation] Access the result along with the RPC operation
            # @yieldparam response [::Google::Cloud::AlloyDB::V1alpha::User]
            # @yieldparam operation [::GRPC::ActiveCall::Operation]
            #
            # @return [::Google::Cloud::AlloyDB::V1alpha::User]
            #
            # @raise [::Google::Cloud::Error] if the RPC is aborted.
            #
            # @example Basic example
            #   require "google/cloud/alloy_db/v1alpha"
            #
            #   # Create a client object. The client can be reused for multiple calls.
            #   client = Google::Cloud::AlloyDB::V1alpha::AlloyDBAdmin::Client.new
            #
            #   # Create a request. To set request fields, pass in keyword arguments.
            #   request = Google::Cloud::AlloyDB::V1alpha::UpdateUserRequest.new
            #
            #   # Call the update_user method.
            #   result = client.update_user request
            #
            #   # The returned object is of type Google::Cloud::AlloyDB::V1alpha::User.
            #   p result
            #
            def update_user request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::AlloyDB::V1alpha::UpdateUserRequest

              # 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_user.metadata.to_h

              # Set x-goog-api-client, x-goog-user-project and x-goog-api-version 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::AlloyDB::V1alpha::VERSION
              metadata[:"x-goog-api-version"] = API_VERSION unless API_VERSION.empty?
              metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

              header_params = {}
              if request.user&.name
                header_params["user.name"] = request.user.name
              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.update_user.timeout,
                                     metadata:     metadata,
                                     retry_policy: @config.rpcs.update_user.retry_policy

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

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

            ##
            # Deletes a single User.
            #
            # @overload delete_user(request, options = nil)
            #   Pass arguments to `delete_user` via a request object, either of type
            #   {::Google::Cloud::AlloyDB::V1alpha::DeleteUserRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::AlloyDB::V1alpha::DeleteUserRequest, ::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_user(name: nil, request_id: nil, validate_only: nil)
            #   Pass arguments to `delete_user` 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]
            #     Required. The name of the resource. For the required format, see the
            #     comment on the User.name field.
            #   @param request_id [::String]
            #     Optional. An optional request ID to identify requests. Specify a unique
            #     request ID so that if you must retry your request, the server ignores the
            #     request if it has already been completed. The server guarantees that for at
            #     least 60 minutes since the first request.
            #
            #     For example, consider a situation where you make an initial request and
            #     the request times out. If you make the request again with the same request
            #     ID, the server can check if the original operation with the same request ID
            #     was received, and if so, ignores the second request. This prevents
            #     clients from accidentally creating duplicate commitments.
            #
            #     The request ID must be a valid UUID with the exception that zero UUID is
            #     not supported (00000000-0000-0000-0000-000000000000).
            #   @param validate_only [::Boolean]
            #     Optional. If set, the backend validates the request, but doesn't actually
            #     execute it.
            #
            # @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/alloy_db/v1alpha"
            #
            #   # Create a client object. The client can be reused for multiple calls.
            #   client = Google::Cloud::AlloyDB::V1alpha::AlloyDBAdmin::Client.new
            #
            #   # Create a request. To set request fields, pass in keyword arguments.
            #   request = Google::Cloud::AlloyDB::V1alpha::DeleteUserRequest.new
            #
            #   # Call the delete_user method.
            #   result = client.delete_user request
            #
            #   # The returned object is of type Google::Protobuf::Empty.
            #   p result
            #
            def delete_user request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::AlloyDB::V1alpha::DeleteUserRequest

              # 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_user.metadata.to_h

              # Set x-goog-api-client, x-goog-user-project and x-goog-api-version 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::AlloyDB::V1alpha::VERSION
              metadata[:"x-goog-api-version"] = API_VERSION unless API_VERSION.empty?
              metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

              header_params = {}
              if request.name
                header_params["name"] = request.name
              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_user.timeout,
                                     metadata:     metadata,
                                     retry_policy: @config.rpcs.delete_user.retry_policy

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

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

            ##
            # Lists Databases in a given project and location.
            #
            # @overload list_databases(request, options = nil)
            #   Pass arguments to `list_databases` via a request object, either of type
            #   {::Google::Cloud::AlloyDB::V1alpha::ListDatabasesRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::AlloyDB::V1alpha::ListDatabasesRequest, ::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_databases(parent: nil, page_size: nil, page_token: nil, filter: nil)
            #   Pass arguments to `list_databases` 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. Parent value for ListDatabasesRequest.
            #   @param page_size [::Integer]
            #     Optional. The maximum number of databases to return. The service may return
            #     fewer than this value. If unspecified, 2000 is the default page_size. The
            #     max value of page_size will be 4000, values above max will be coerced to
            #     max.
            #   @param page_token [::String]
            #     Optional. A page token, received from a previous `ListDatabases` call.
            #     This should be provided to retrieve the subsequent page.
            #     This field is currently not supported, its value will be ignored if passed.
            #   @param filter [::String]
            #     Optional. Filtering results.
            #     This field is currently not supported, its value will be ignored if passed.
            #
            # @yield [response, operation] Access the result along with the RPC operation
            # @yieldparam response [::Gapic::PagedEnumerable<::Google::Cloud::AlloyDB::V1alpha::Database>]
            # @yieldparam operation [::GRPC::ActiveCall::Operation]
            #
            # @return [::Gapic::PagedEnumerable<::Google::Cloud::AlloyDB::V1alpha::Database>]
            #
            # @raise [::Google::Cloud::Error] if the RPC is aborted.
            #
            # @example Basic example
            #   require "google/cloud/alloy_db/v1alpha"
            #
            #   # Create a client object. The client can be reused for multiple calls.
            #   client = Google::Cloud::AlloyDB::V1alpha::AlloyDBAdmin::Client.new
            #
            #   # Create a request. To set request fields, pass in keyword arguments.
            #   request = Google::Cloud::AlloyDB::V1alpha::ListDatabasesRequest.new
            #
            #   # Call the list_databases method.
            #   result = client.list_databases 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::AlloyDB::V1alpha::Database.
            #     p item
            #   end
            #
            def list_databases request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::AlloyDB::V1alpha::ListDatabasesRequest

              # 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_databases.metadata.to_h

              # Set x-goog-api-client, x-goog-user-project and x-goog-api-version 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::AlloyDB::V1alpha::VERSION
              metadata[:"x-goog-api-version"] = API_VERSION unless API_VERSION.empty?
              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.list_databases.timeout,
                                     metadata:     metadata,
                                     retry_policy: @config.rpcs.list_databases.retry_policy

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

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

            ##
            # Creates a new Database in a given project, location, and cluster.
            #
            # @overload create_database(request, options = nil)
            #   Pass arguments to `create_database` via a request object, either of type
            #   {::Google::Cloud::AlloyDB::V1alpha::CreateDatabaseRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::AlloyDB::V1alpha::CreateDatabaseRequest, ::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_database(parent: nil, database_id: nil, database: nil)
            #   Pass arguments to `create_database` 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. Value for parent.
            #   @param database_id [::String]
            #     Required. ID of the requesting object.
            #   @param database [::Google::Cloud::AlloyDB::V1alpha::Database, ::Hash]
            #     Required. The resource being created.
            #
            # @yield [response, operation] Access the result along with the RPC operation
            # @yieldparam response [::Google::Cloud::AlloyDB::V1alpha::Database]
            # @yieldparam operation [::GRPC::ActiveCall::Operation]
            #
            # @return [::Google::Cloud::AlloyDB::V1alpha::Database]
            #
            # @raise [::Google::Cloud::Error] if the RPC is aborted.
            #
            # @example Basic example
            #   require "google/cloud/alloy_db/v1alpha"
            #
            #   # Create a client object. The client can be reused for multiple calls.
            #   client = Google::Cloud::AlloyDB::V1alpha::AlloyDBAdmin::Client.new
            #
            #   # Create a request. To set request fields, pass in keyword arguments.
            #   request = Google::Cloud::AlloyDB::V1alpha::CreateDatabaseRequest.new
            #
            #   # Call the create_database method.
            #   result = client.create_database request
            #
            #   # The returned object is of type Google::Cloud::AlloyDB::V1alpha::Database.
            #   p result
            #
            def create_database request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::AlloyDB::V1alpha::CreateDatabaseRequest

              # 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_database.metadata.to_h

              # Set x-goog-api-client, x-goog-user-project and x-goog-api-version 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::AlloyDB::V1alpha::VERSION
              metadata[:"x-goog-api-version"] = API_VERSION unless API_VERSION.empty?
              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.create_database.timeout,
                                     metadata:     metadata,
                                     retry_policy: @config.rpcs.create_database.retry_policy

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

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

            ##
            # Configuration class for the AlloyDBAdmin API.
            #
            # This class represents the configuration for AlloyDBAdmin,
            # 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::AlloyDB::V1alpha::AlloyDBAdmin::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_clusters to 20 seconds,
            #   # and all remaining timeouts to 10 seconds.
            #   ::Google::Cloud::AlloyDB::V1alpha::AlloyDBAdmin::Client.configure do |config|
            #     config.timeout = 10.0
            #     config.rpcs.list_clusters.timeout = 20.0
            #   end
            #
            #   # Apply the above configuration only to a new client.
            #   client = ::Google::Cloud::AlloyDB::V1alpha::AlloyDBAdmin::Client.new do |config|
            #     config.timeout = 10.0
            #     config.rpcs.list_clusters.timeout = 20.0
            #   end
            #
            # @!attribute [rw] endpoint
            #   A custom service endpoint, as a hostname or hostname:port. The default is
            #   nil, indicating to use the default endpoint in the current universe domain.
            #   @return [::String,nil]
            # @!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
            #
            #   Warning: If you accept a credential configuration (JSON file or Hash) from an
            #   external source for authentication to Google Cloud, you must validate it before
            #   providing it to a Google API client library. Providing an unvalidated credential
            #   configuration to Google APIs can compromise the security of your systems and data.
            #   For more information, refer to [Validate credential configurations from external
            #   sources](https://cloud.google.com/docs/authentication/external/externally-sourced-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]
            # @!attribute [rw] universe_domain
            #   The universe domain within which to make requests. This determines the
            #   default endpoint URL. The default value of nil uses the environment
            #   universe (usually the default "googleapis.com" universe).
            #   @return [::String,nil]
            # @!attribute [rw] logger
            #   A custom logger to use for request/response debug logging, or the value
            #   `:default` (the default) to construct a default logger, or `nil` to
            #   explicitly disable logging.
            #   @return [::Logger,:default,nil]
            #
            class Configuration
              extend ::Gapic::Config

              # @private
              # The endpoint specific to the default "googleapis.com" universe. Deprecated.
              DEFAULT_ENDPOINT = "alloydb.googleapis.com"

              config_attr :endpoint,      nil, ::String, nil
              config_attr :credentials,   nil do |value|
                allowed = [::String, ::Hash, ::Proc, ::Symbol, ::Google::Auth::Credentials, ::Google::Auth::BaseClient, ::Signet::OAuth2::Client, nil]
                allowed += [::GRPC::Core::Channel, ::GRPC::Core::ChannelCredentials] if defined? ::GRPC::Core::Channel
                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
              config_attr :universe_domain, nil, ::String, nil
              config_attr :logger, :default, ::Logger, nil, :default

              # @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 for the channel pool
              # @return [::Gapic::ServiceStub::ChannelPool::Configuration]
              #
              def channel_pool
                @channel_pool ||= ::Gapic::ServiceStub::ChannelPool::Configuration.new
              end

              ##
              # Configuration RPC class for the AlloyDBAdmin 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_clusters`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :list_clusters
                ##
                # RPC-specific configuration for `get_cluster`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :get_cluster
                ##
                # RPC-specific configuration for `create_cluster`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :create_cluster
                ##
                # RPC-specific configuration for `update_cluster`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :update_cluster
                ##
                # RPC-specific configuration for `export_cluster`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :export_cluster
                ##
                # RPC-specific configuration for `import_cluster`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :import_cluster
                ##
                # RPC-specific configuration for `upgrade_cluster`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :upgrade_cluster
                ##
                # RPC-specific configuration for `delete_cluster`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :delete_cluster
                ##
                # RPC-specific configuration for `promote_cluster`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :promote_cluster
                ##
                # RPC-specific configuration for `switchover_cluster`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :switchover_cluster
                ##
                # RPC-specific configuration for `restore_cluster`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :restore_cluster
                ##
                # RPC-specific configuration for `create_secondary_cluster`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :create_secondary_cluster
                ##
                # 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 `create_secondary_instance`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :create_secondary_instance
                ##
                # RPC-specific configuration for `batch_create_instances`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :batch_create_instances
                ##
                # RPC-specific configuration for `update_instance`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :update_instance
                ##
                # RPC-specific configuration for `delete_instance`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :delete_instance
                ##
                # RPC-specific configuration for `failover_instance`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :failover_instance
                ##
                # RPC-specific configuration for `inject_fault`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :inject_fault
                ##
                # RPC-specific configuration for `restart_instance`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :restart_instance
                ##
                # RPC-specific configuration for `execute_sql`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :execute_sql
                ##
                # RPC-specific configuration for `list_backups`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :list_backups
                ##
                # RPC-specific configuration for `get_backup`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :get_backup
                ##
                # RPC-specific configuration for `create_backup`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :create_backup
                ##
                # RPC-specific configuration for `update_backup`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :update_backup
                ##
                # RPC-specific configuration for `delete_backup`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :delete_backup
                ##
                # RPC-specific configuration for `list_supported_database_flags`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :list_supported_database_flags
                ##
                # RPC-specific configuration for `generate_client_certificate`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :generate_client_certificate
                ##
                # RPC-specific configuration for `get_connection_info`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :get_connection_info
                ##
                # RPC-specific configuration for `list_users`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :list_users
                ##
                # RPC-specific configuration for `get_user`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :get_user
                ##
                # RPC-specific configuration for `create_user`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :create_user
                ##
                # RPC-specific configuration for `update_user`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :update_user
                ##
                # RPC-specific configuration for `delete_user`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :delete_user
                ##
                # RPC-specific configuration for `list_databases`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :list_databases
                ##
                # RPC-specific configuration for `create_database`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :create_database

                # @private
                def initialize parent_rpcs = nil
                  list_clusters_config = parent_rpcs.list_clusters if parent_rpcs.respond_to? :list_clusters
                  @list_clusters = ::Gapic::Config::Method.new list_clusters_config
                  get_cluster_config = parent_rpcs.get_cluster if parent_rpcs.respond_to? :get_cluster
                  @get_cluster = ::Gapic::Config::Method.new get_cluster_config
                  create_cluster_config = parent_rpcs.create_cluster if parent_rpcs.respond_to? :create_cluster
                  @create_cluster = ::Gapic::Config::Method.new create_cluster_config
                  update_cluster_config = parent_rpcs.update_cluster if parent_rpcs.respond_to? :update_cluster
                  @update_cluster = ::Gapic::Config::Method.new update_cluster_config
                  export_cluster_config = parent_rpcs.export_cluster if parent_rpcs.respond_to? :export_cluster
                  @export_cluster = ::Gapic::Config::Method.new export_cluster_config
                  import_cluster_config = parent_rpcs.import_cluster if parent_rpcs.respond_to? :import_cluster
                  @import_cluster = ::Gapic::Config::Method.new import_cluster_config
                  upgrade_cluster_config = parent_rpcs.upgrade_cluster if parent_rpcs.respond_to? :upgrade_cluster
                  @upgrade_cluster = ::Gapic::Config::Method.new upgrade_cluster_config
                  delete_cluster_config = parent_rpcs.delete_cluster if parent_rpcs.respond_to? :delete_cluster
                  @delete_cluster = ::Gapic::Config::Method.new delete_cluster_config
                  promote_cluster_config = parent_rpcs.promote_cluster if parent_rpcs.respond_to? :promote_cluster
                  @promote_cluster = ::Gapic::Config::Method.new promote_cluster_config
                  switchover_cluster_config = parent_rpcs.switchover_cluster if parent_rpcs.respond_to? :switchover_cluster
                  @switchover_cluster = ::Gapic::Config::Method.new switchover_cluster_config
                  restore_cluster_config = parent_rpcs.restore_cluster if parent_rpcs.respond_to? :restore_cluster
                  @restore_cluster = ::Gapic::Config::Method.new restore_cluster_config
                  create_secondary_cluster_config = parent_rpcs.create_secondary_cluster if parent_rpcs.respond_to? :create_secondary_cluster
                  @create_secondary_cluster = ::Gapic::Config::Method.new create_secondary_cluster_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
                  create_secondary_instance_config = parent_rpcs.create_secondary_instance if parent_rpcs.respond_to? :create_secondary_instance
                  @create_secondary_instance = ::Gapic::Config::Method.new create_secondary_instance_config
                  batch_create_instances_config = parent_rpcs.batch_create_instances if parent_rpcs.respond_to? :batch_create_instances
                  @batch_create_instances = ::Gapic::Config::Method.new batch_create_instances_config
                  update_instance_config = parent_rpcs.update_instance if parent_rpcs.respond_to? :update_instance
                  @update_instance = ::Gapic::Config::Method.new update_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
                  failover_instance_config = parent_rpcs.failover_instance if parent_rpcs.respond_to? :failover_instance
                  @failover_instance = ::Gapic::Config::Method.new failover_instance_config
                  inject_fault_config = parent_rpcs.inject_fault if parent_rpcs.respond_to? :inject_fault
                  @inject_fault = ::Gapic::Config::Method.new inject_fault_config
                  restart_instance_config = parent_rpcs.restart_instance if parent_rpcs.respond_to? :restart_instance
                  @restart_instance = ::Gapic::Config::Method.new restart_instance_config
                  execute_sql_config = parent_rpcs.execute_sql if parent_rpcs.respond_to? :execute_sql
                  @execute_sql = ::Gapic::Config::Method.new execute_sql_config
                  list_backups_config = parent_rpcs.list_backups if parent_rpcs.respond_to? :list_backups
                  @list_backups = ::Gapic::Config::Method.new list_backups_config
                  get_backup_config = parent_rpcs.get_backup if parent_rpcs.respond_to? :get_backup
                  @get_backup = ::Gapic::Config::Method.new get_backup_config
                  create_backup_config = parent_rpcs.create_backup if parent_rpcs.respond_to? :create_backup
                  @create_backup = ::Gapic::Config::Method.new create_backup_config
                  update_backup_config = parent_rpcs.update_backup if parent_rpcs.respond_to? :update_backup
                  @update_backup = ::Gapic::Config::Method.new update_backup_config
                  delete_backup_config = parent_rpcs.delete_backup if parent_rpcs.respond_to? :delete_backup
                  @delete_backup = ::Gapic::Config::Method.new delete_backup_config
                  list_supported_database_flags_config = parent_rpcs.list_supported_database_flags if parent_rpcs.respond_to? :list_supported_database_flags
                  @list_supported_database_flags = ::Gapic::Config::Method.new list_supported_database_flags_config
                  generate_client_certificate_config = parent_rpcs.generate_client_certificate if parent_rpcs.respond_to? :generate_client_certificate
                  @generate_client_certificate = ::Gapic::Config::Method.new generate_client_certificate_config
                  get_connection_info_config = parent_rpcs.get_connection_info if parent_rpcs.respond_to? :get_connection_info
                  @get_connection_info = ::Gapic::Config::Method.new get_connection_info_config
                  list_users_config = parent_rpcs.list_users if parent_rpcs.respond_to? :list_users
                  @list_users = ::Gapic::Config::Method.new list_users_config
                  get_user_config = parent_rpcs.get_user if parent_rpcs.respond_to? :get_user
                  @get_user = ::Gapic::Config::Method.new get_user_config
                  create_user_config = parent_rpcs.create_user if parent_rpcs.respond_to? :create_user
                  @create_user = ::Gapic::Config::Method.new create_user_config
                  update_user_config = parent_rpcs.update_user if parent_rpcs.respond_to? :update_user
                  @update_user = ::Gapic::Config::Method.new update_user_config
                  delete_user_config = parent_rpcs.delete_user if parent_rpcs.respond_to? :delete_user
                  @delete_user = ::Gapic::Config::Method.new delete_user_config
                  list_databases_config = parent_rpcs.list_databases if parent_rpcs.respond_to? :list_databases
                  @list_databases = ::Gapic::Config::Method.new list_databases_config
                  create_database_config = parent_rpcs.create_database if parent_rpcs.respond_to? :create_database
                  @create_database = ::Gapic::Config::Method.new create_database_config

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