# frozen_string_literal: true

# Copyright 2020 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

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

require "google/cloud/errors"
require "google/cloud/functions/v1/functions_pb"
require "google/cloud/location"
require "google/iam/v1"

module Google
  module Cloud
    module Functions
      module V1
        module CloudFunctionsService
          ##
          # Client for the CloudFunctionsService service.
          #
          # A service that application uses to manipulate triggers and functions.
          #
          class Client
            # @private
            API_VERSION = ""

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

            include Paths

            # @private
            attr_reader :cloud_functions_service_stub

            ##
            # Configure the CloudFunctionsService Client class.
            #
            # See {::Google::Cloud::Functions::V1::CloudFunctionsService::Client::Configuration}
            # for a description of the configuration fields.
            #
            # @example
            #
            #   # Modify the configuration for all CloudFunctionsService clients
            #   ::Google::Cloud::Functions::V1::CloudFunctionsService::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", "Functions", "V1"]
                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.rpcs.list_functions.timeout = 600.0
                default_config.rpcs.list_functions.retry_policy = {
                  initial_delay: 0.1, max_delay: 60.0, multiplier: 1.3, retry_codes: [14, 4]
                }

                default_config.rpcs.get_function.timeout = 600.0
                default_config.rpcs.get_function.retry_policy = {
                  initial_delay: 0.1, max_delay: 60.0, multiplier: 1.3, retry_codes: [14, 4]
                }

                default_config.rpcs.create_function.timeout = 600.0

                default_config.rpcs.update_function.timeout = 600.0
                default_config.rpcs.update_function.retry_policy = {
                  initial_delay: 0.1, max_delay: 60.0, multiplier: 1.3, retry_codes: [14, 4]
                }

                default_config.rpcs.delete_function.timeout = 600.0
                default_config.rpcs.delete_function.retry_policy = {
                  initial_delay: 0.1, max_delay: 60.0, multiplier: 1.3, retry_codes: [14, 4]
                }

                default_config.rpcs.call_function.timeout = 600.0

                default_config
              end
              yield @configure if block_given?
              @configure
            end

            ##
            # Configure the CloudFunctionsService 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::Functions::V1::CloudFunctionsService::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
              @cloud_functions_service_stub.universe_domain
            end

            ##
            # Create a new CloudFunctionsService client object.
            #
            # @example
            #
            #   # Create a client using the default configuration
            #   client = ::Google::Cloud::Functions::V1::CloudFunctionsService::Client.new
            #
            #   # Create a client using a custom configuration
            #   client = ::Google::Cloud::Functions::V1::CloudFunctionsService::Client.new do |config|
            #     config.timeout = 10.0
            #   end
            #
            # @yield [config] Configure the CloudFunctionsService 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/functions/v1/functions_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

              @cloud_functions_service_stub = ::Gapic::ServiceStub.new(
                ::Google::Cloud::Functions::V1::CloudFunctionsService::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
              )

              @cloud_functions_service_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 = @cloud_functions_service_stub.endpoint
                config.universe_domain = @cloud_functions_service_stub.universe_domain
                config.logger = @cloud_functions_service_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 = @cloud_functions_service_stub.endpoint
                config.universe_domain = @cloud_functions_service_stub.universe_domain
                config.logger = @cloud_functions_service_stub.logger if config.respond_to? :logger=
              end
            end

            ##
            # Get the associated client for long-running operations.
            #
            # @return [::Google::Cloud::Functions::V1::CloudFunctionsService::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
              @cloud_functions_service_stub.logger
            end

            # Service calls

            ##
            # Returns a list of functions that belong to the requested project.
            #
            # @overload list_functions(request, options = nil)
            #   Pass arguments to `list_functions` via a request object, either of type
            #   {::Google::Cloud::Functions::V1::ListFunctionsRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::Functions::V1::ListFunctionsRequest, ::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_functions(parent: nil, page_size: nil, page_token: nil)
            #   Pass arguments to `list_functions` via keyword arguments. Note that at
            #   least one keyword argument is required. To specify no parameters, or to keep all
            #   the default parameter values, pass an empty Hash as a request object (see above).
            #
            #   @param parent [::String]
            #     The project and location from which the function should be listed,
            #     specified in the format `projects/*/locations/*`
            #     If you want to list functions in all locations, use "-" in place of a
            #     location. When listing functions in all locations, if one or more
            #     location(s) are unreachable, the response will contain functions from all
            #     reachable locations along with the names of any unreachable locations.
            #   @param page_size [::Integer]
            #     Maximum number of functions to return per call.
            #   @param page_token [::String]
            #     The value returned by the last
            #     `ListFunctionsResponse`; indicates that
            #     this is a continuation of a prior `ListFunctions` call, and that the
            #     system should return the next page of data.
            #
            # @yield [response, operation] Access the result along with the RPC operation
            # @yieldparam response [::Gapic::PagedEnumerable<::Google::Cloud::Functions::V1::CloudFunction>]
            # @yieldparam operation [::GRPC::ActiveCall::Operation]
            #
            # @return [::Gapic::PagedEnumerable<::Google::Cloud::Functions::V1::CloudFunction>]
            #
            # @raise [::Google::Cloud::Error] if the RPC is aborted.
            #
            # @example Basic example
            #   require "google/cloud/functions/v1"
            #
            #   # Create a client object. The client can be reused for multiple calls.
            #   client = Google::Cloud::Functions::V1::CloudFunctionsService::Client.new
            #
            #   # Create a request. To set request fields, pass in keyword arguments.
            #   request = Google::Cloud::Functions::V1::ListFunctionsRequest.new
            #
            #   # Call the list_functions method.
            #   result = client.list_functions 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::Functions::V1::CloudFunction.
            #     p item
            #   end
            #
            def list_functions request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::Functions::V1::ListFunctionsRequest

              # 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_functions.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::Functions::V1::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_functions.timeout,
                                     metadata:     metadata,
                                     retry_policy: @config.rpcs.list_functions.retry_policy

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

              @cloud_functions_service_stub.call_rpc :list_functions, request, options: options do |response, operation|
                response = ::Gapic::PagedEnumerable.new @cloud_functions_service_stub, :list_functions, 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

            ##
            # Returns a function with the given name from the requested project.
            #
            # @overload get_function(request, options = nil)
            #   Pass arguments to `get_function` via a request object, either of type
            #   {::Google::Cloud::Functions::V1::GetFunctionRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::Functions::V1::GetFunctionRequest, ::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_function(name: nil, version_id: nil)
            #   Pass arguments to `get_function` 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 function which details should be obtained.
            #   @param version_id [::Integer]
            #     Optional. The optional version of the function whose details should be
            #     obtained. The version of a 1st Gen function is an integer that starts from
            #     1 and gets incremented on redeployments. Each deployment creates a config
            #     version of the underlying function. GCF may keep historical configs for old
            #     versions. This field can be specified to fetch the historical configs.
            #     Leave it blank or set to 0 to get the latest version of the function.
            #
            # @yield [response, operation] Access the result along with the RPC operation
            # @yieldparam response [::Google::Cloud::Functions::V1::CloudFunction]
            # @yieldparam operation [::GRPC::ActiveCall::Operation]
            #
            # @return [::Google::Cloud::Functions::V1::CloudFunction]
            #
            # @raise [::Google::Cloud::Error] if the RPC is aborted.
            #
            # @example Basic example
            #   require "google/cloud/functions/v1"
            #
            #   # Create a client object. The client can be reused for multiple calls.
            #   client = Google::Cloud::Functions::V1::CloudFunctionsService::Client.new
            #
            #   # Create a request. To set request fields, pass in keyword arguments.
            #   request = Google::Cloud::Functions::V1::GetFunctionRequest.new
            #
            #   # Call the get_function method.
            #   result = client.get_function request
            #
            #   # The returned object is of type Google::Cloud::Functions::V1::CloudFunction.
            #   p result
            #
            def get_function request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::Functions::V1::GetFunctionRequest

              # 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_function.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::Functions::V1::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_function.timeout,
                                     metadata:     metadata,
                                     retry_policy: @config.rpcs.get_function.retry_policy

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

              @cloud_functions_service_stub.call_rpc :get_function, 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 function. If a function with the given name already exists in
            # the specified project, the long running operation will return
            # `ALREADY_EXISTS` error.
            #
            # @overload create_function(request, options = nil)
            #   Pass arguments to `create_function` via a request object, either of type
            #   {::Google::Cloud::Functions::V1::CreateFunctionRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::Functions::V1::CreateFunctionRequest, ::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_function(location: nil, function: nil)
            #   Pass arguments to `create_function` 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 location [::String]
            #     Required. The project and location in which the function should be created,
            #     specified in the format `projects/*/locations/*`
            #   @param function [::Google::Cloud::Functions::V1::CloudFunction, ::Hash]
            #     Required. Function to be created.
            #
            # @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/functions/v1"
            #
            #   # Create a client object. The client can be reused for multiple calls.
            #   client = Google::Cloud::Functions::V1::CloudFunctionsService::Client.new
            #
            #   # Create a request. To set request fields, pass in keyword arguments.
            #   request = Google::Cloud::Functions::V1::CreateFunctionRequest.new
            #
            #   # Call the create_function method.
            #   result = client.create_function 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_function request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::Functions::V1::CreateFunctionRequest

              # 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_function.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::Functions::V1::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.location
                header_params["location"] = request.location
              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_function.timeout,
                                     metadata:     metadata,
                                     retry_policy: @config.rpcs.create_function.retry_policy

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

              @cloud_functions_service_stub.call_rpc :create_function, 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 existing function.
            #
            # @overload update_function(request, options = nil)
            #   Pass arguments to `update_function` via a request object, either of type
            #   {::Google::Cloud::Functions::V1::UpdateFunctionRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::Functions::V1::UpdateFunctionRequest, ::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_function(function: nil, update_mask: nil)
            #   Pass arguments to `update_function` 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 function [::Google::Cloud::Functions::V1::CloudFunction, ::Hash]
            #     Required. New version of the function.
            #   @param update_mask [::Google::Protobuf::FieldMask, ::Hash]
            #     Required. The list of fields in `CloudFunction` that have to be updated.
            #
            # @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/functions/v1"
            #
            #   # Create a client object. The client can be reused for multiple calls.
            #   client = Google::Cloud::Functions::V1::CloudFunctionsService::Client.new
            #
            #   # Create a request. To set request fields, pass in keyword arguments.
            #   request = Google::Cloud::Functions::V1::UpdateFunctionRequest.new
            #
            #   # Call the update_function method.
            #   result = client.update_function 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_function request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::Functions::V1::UpdateFunctionRequest

              # 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_function.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::Functions::V1::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.function&.name
                header_params["function.name"] = request.function.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_function.timeout,
                                     metadata:     metadata,
                                     retry_policy: @config.rpcs.update_function.retry_policy

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

              @cloud_functions_service_stub.call_rpc :update_function, 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 function with the given name from the specified project. If the
            # given function is used by some trigger, the trigger will be updated to
            # remove this function.
            #
            # @overload delete_function(request, options = nil)
            #   Pass arguments to `delete_function` via a request object, either of type
            #   {::Google::Cloud::Functions::V1::DeleteFunctionRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::Functions::V1::DeleteFunctionRequest, ::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_function(name: nil)
            #   Pass arguments to `delete_function` 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 function which should be deleted.
            #
            # @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/functions/v1"
            #
            #   # Create a client object. The client can be reused for multiple calls.
            #   client = Google::Cloud::Functions::V1::CloudFunctionsService::Client.new
            #
            #   # Create a request. To set request fields, pass in keyword arguments.
            #   request = Google::Cloud::Functions::V1::DeleteFunctionRequest.new
            #
            #   # Call the delete_function method.
            #   result = client.delete_function 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_function request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::Functions::V1::DeleteFunctionRequest

              # 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_function.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::Functions::V1::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_function.timeout,
                                     metadata:     metadata,
                                     retry_policy: @config.rpcs.delete_function.retry_policy

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

              @cloud_functions_service_stub.call_rpc :delete_function, 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

            ##
            # Synchronously invokes a deployed Cloud Function. To be used for testing
            # purposes as very limited traffic is allowed. For more information on
            # the actual limits, refer to
            # [Rate Limits](https://cloud.google.com/functions/quotas#rate_limits).
            #
            # @overload call_function(request, options = nil)
            #   Pass arguments to `call_function` via a request object, either of type
            #   {::Google::Cloud::Functions::V1::CallFunctionRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::Functions::V1::CallFunctionRequest, ::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 call_function(name: nil, data: nil)
            #   Pass arguments to `call_function` 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 function to be called.
            #   @param data [::String]
            #     Required. Input to be passed to the function.
            #
            # @yield [response, operation] Access the result along with the RPC operation
            # @yieldparam response [::Google::Cloud::Functions::V1::CallFunctionResponse]
            # @yieldparam operation [::GRPC::ActiveCall::Operation]
            #
            # @return [::Google::Cloud::Functions::V1::CallFunctionResponse]
            #
            # @raise [::Google::Cloud::Error] if the RPC is aborted.
            #
            # @example Basic example
            #   require "google/cloud/functions/v1"
            #
            #   # Create a client object. The client can be reused for multiple calls.
            #   client = Google::Cloud::Functions::V1::CloudFunctionsService::Client.new
            #
            #   # Create a request. To set request fields, pass in keyword arguments.
            #   request = Google::Cloud::Functions::V1::CallFunctionRequest.new
            #
            #   # Call the call_function method.
            #   result = client.call_function request
            #
            #   # The returned object is of type Google::Cloud::Functions::V1::CallFunctionResponse.
            #   p result
            #
            def call_function request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::Functions::V1::CallFunctionRequest

              # 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.call_function.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::Functions::V1::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.call_function.timeout,
                                     metadata:     metadata,
                                     retry_policy: @config.rpcs.call_function.retry_policy

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

              @cloud_functions_service_stub.call_rpc :call_function, 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

            ##
            # Returns a signed URL for uploading a function source code.
            # For more information about the signed URL usage see:
            # https://cloud.google.com/storage/docs/access-control/signed-urls.
            # Once the function source code upload is complete, the used signed
            # URL should be provided in CreateFunction or UpdateFunction request
            # as a reference to the function source code.
            #
            # When uploading source code to the generated signed URL, please follow
            # these restrictions:
            #
            # * Source file type should be a zip file.
            # * Source file size should not exceed 100MB limit.
            # * No credentials should be attached - the signed URLs provide access to the
            #   target bucket using internal service identity; if credentials were
            #   attached, the identity from the credentials would be used, but that
            #   identity does not have permissions to upload files to the URL.
            #
            # When making a HTTP PUT request, these two headers need to be specified:
            #
            # * `content-type: application/zip`
            # * `x-goog-content-length-range: 0,104857600`
            #
            # And this header SHOULD NOT be specified:
            #
            # * `Authorization: Bearer YOUR_TOKEN`
            #
            # @overload generate_upload_url(request, options = nil)
            #   Pass arguments to `generate_upload_url` via a request object, either of type
            #   {::Google::Cloud::Functions::V1::GenerateUploadUrlRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::Functions::V1::GenerateUploadUrlRequest, ::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_upload_url(parent: nil, kms_key_name: nil)
            #   Pass arguments to `generate_upload_url` via keyword arguments. Note that at
            #   least one keyword argument is required. To specify no parameters, or to keep all
            #   the default parameter values, pass an empty Hash as a request object (see above).
            #
            #   @param parent [::String]
            #     The project and location in which the Google Cloud Storage signed URL
            #     should be generated, specified in the format `projects/*/locations/*`.
            #   @param kms_key_name [::String]
            #     Resource name of a KMS crypto key (managed by the user) used to
            #     encrypt/decrypt function source code objects in intermediate Cloud Storage
            #     buckets. When you generate an upload url and upload your source code, it
            #     gets copied to an intermediate Cloud Storage bucket. The source code is
            #     then copied to a versioned directory in the sources bucket in the consumer
            #     project during the function deployment.
            #
            #     It must match the pattern
            #     `projects/{project}/locations/{location}/keyRings/{key_ring}/cryptoKeys/{crypto_key}`.
            #
            #     The Google Cloud Functions service account
            #     (service-\\{project_number}@gcf-admin-robot.iam.gserviceaccount.com) must be
            #     granted the role 'Cloud KMS CryptoKey Encrypter/Decrypter
            #     (roles/cloudkms.cryptoKeyEncrypterDecrypter)' on the
            #     Key/KeyRing/Project/Organization (least access preferred). GCF will
            #     delegate access to the Google Storage service account in the internal
            #     project.
            #
            # @yield [response, operation] Access the result along with the RPC operation
            # @yieldparam response [::Google::Cloud::Functions::V1::GenerateUploadUrlResponse]
            # @yieldparam operation [::GRPC::ActiveCall::Operation]
            #
            # @return [::Google::Cloud::Functions::V1::GenerateUploadUrlResponse]
            #
            # @raise [::Google::Cloud::Error] if the RPC is aborted.
            #
            # @example Basic example
            #   require "google/cloud/functions/v1"
            #
            #   # Create a client object. The client can be reused for multiple calls.
            #   client = Google::Cloud::Functions::V1::CloudFunctionsService::Client.new
            #
            #   # Create a request. To set request fields, pass in keyword arguments.
            #   request = Google::Cloud::Functions::V1::GenerateUploadUrlRequest.new
            #
            #   # Call the generate_upload_url method.
            #   result = client.generate_upload_url request
            #
            #   # The returned object is of type Google::Cloud::Functions::V1::GenerateUploadUrlResponse.
            #   p result
            #
            def generate_upload_url request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::Functions::V1::GenerateUploadUrlRequest

              # 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_upload_url.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::Functions::V1::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_upload_url.timeout,
                                     metadata:     metadata,
                                     retry_policy: @config.rpcs.generate_upload_url.retry_policy

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

              @cloud_functions_service_stub.call_rpc :generate_upload_url, 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

            ##
            # Returns a signed URL for downloading deployed function source code.
            # The URL is only valid for a limited period and should be used within
            # minutes after generation.
            # For more information about the signed URL usage see:
            # https://cloud.google.com/storage/docs/access-control/signed-urls
            #
            # @overload generate_download_url(request, options = nil)
            #   Pass arguments to `generate_download_url` via a request object, either of type
            #   {::Google::Cloud::Functions::V1::GenerateDownloadUrlRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Cloud::Functions::V1::GenerateDownloadUrlRequest, ::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_download_url(name: nil, version_id: nil)
            #   Pass arguments to `generate_download_url` via keyword arguments. Note that at
            #   least one keyword argument is required. To specify no parameters, or to keep all
            #   the default parameter values, pass an empty Hash as a request object (see above).
            #
            #   @param name [::String]
            #     The name of function for which source code Google Cloud Storage signed
            #     URL should be generated.
            #   @param version_id [::Integer]
            #     The optional version of function. If not set, default, current version
            #     is used.
            #
            # @yield [response, operation] Access the result along with the RPC operation
            # @yieldparam response [::Google::Cloud::Functions::V1::GenerateDownloadUrlResponse]
            # @yieldparam operation [::GRPC::ActiveCall::Operation]
            #
            # @return [::Google::Cloud::Functions::V1::GenerateDownloadUrlResponse]
            #
            # @raise [::Google::Cloud::Error] if the RPC is aborted.
            #
            # @example Basic example
            #   require "google/cloud/functions/v1"
            #
            #   # Create a client object. The client can be reused for multiple calls.
            #   client = Google::Cloud::Functions::V1::CloudFunctionsService::Client.new
            #
            #   # Create a request. To set request fields, pass in keyword arguments.
            #   request = Google::Cloud::Functions::V1::GenerateDownloadUrlRequest.new
            #
            #   # Call the generate_download_url method.
            #   result = client.generate_download_url request
            #
            #   # The returned object is of type Google::Cloud::Functions::V1::GenerateDownloadUrlResponse.
            #   p result
            #
            def generate_download_url request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::Functions::V1::GenerateDownloadUrlRequest

              # 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_download_url.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::Functions::V1::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.generate_download_url.timeout,
                                     metadata:     metadata,
                                     retry_policy: @config.rpcs.generate_download_url.retry_policy

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

              @cloud_functions_service_stub.call_rpc :generate_download_url, 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

            ##
            # Sets the IAM access control policy on the specified function.
            # Replaces any existing policy.
            #
            # @overload set_iam_policy(request, options = nil)
            #   Pass arguments to `set_iam_policy` via a request object, either of type
            #   {::Google::Iam::V1::SetIamPolicyRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Iam::V1::SetIamPolicyRequest, ::Hash]
            #     A request object representing the call parameters. Required. To specify no
            #     parameters, or to keep all the default parameter values, pass an empty Hash.
            #   @param options [::Gapic::CallOptions, ::Hash]
            #     Overrides the default settings for this call, e.g, timeout, retries, etc. Optional.
            #
            # @overload set_iam_policy(resource: nil, policy: nil, update_mask: nil)
            #   Pass arguments to `set_iam_policy` via keyword arguments. Note that at
            #   least one keyword argument is required. To specify no parameters, or to keep all
            #   the default parameter values, pass an empty Hash as a request object (see above).
            #
            #   @param resource [::String]
            #     REQUIRED: The resource for which the policy is being specified.
            #     See the operation documentation for the appropriate value for this field.
            #   @param policy [::Google::Iam::V1::Policy, ::Hash]
            #     REQUIRED: The complete policy to be applied to the `resource`. The size of
            #     the policy is limited to a few 10s of KB. An empty policy is a
            #     valid policy but certain Cloud Platform services (such as Projects)
            #     might reject them.
            #   @param update_mask [::Google::Protobuf::FieldMask, ::Hash]
            #     OPTIONAL: A FieldMask specifying which fields of the policy to modify. Only
            #     the fields in the mask will be modified. If no mask is provided, the
            #     following default mask is used:
            #
            #     `paths: "bindings, etag"`
            #
            # @yield [response, operation] Access the result along with the RPC operation
            # @yieldparam response [::Google::Iam::V1::Policy]
            # @yieldparam operation [::GRPC::ActiveCall::Operation]
            #
            # @return [::Google::Iam::V1::Policy]
            #
            # @raise [::Google::Cloud::Error] if the RPC is aborted.
            #
            # @example Basic example
            #   require "google/cloud/functions/v1"
            #
            #   # Create a client object. The client can be reused for multiple calls.
            #   client = Google::Cloud::Functions::V1::CloudFunctionsService::Client.new
            #
            #   # Create a request. To set request fields, pass in keyword arguments.
            #   request = Google::Iam::V1::SetIamPolicyRequest.new
            #
            #   # Call the set_iam_policy method.
            #   result = client.set_iam_policy request
            #
            #   # The returned object is of type Google::Iam::V1::Policy.
            #   p result
            #
            def set_iam_policy request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Iam::V1::SetIamPolicyRequest

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

              # Customize the options with defaults
              metadata = @config.rpcs.set_iam_policy.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::Functions::V1::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.resource
                header_params["resource"] = request.resource
              end

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

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

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

              @cloud_functions_service_stub.call_rpc :set_iam_policy, 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

            ##
            # Gets the IAM access control policy for a function.
            # Returns an empty policy if the function exists and does not have a policy
            # set.
            #
            # @overload get_iam_policy(request, options = nil)
            #   Pass arguments to `get_iam_policy` via a request object, either of type
            #   {::Google::Iam::V1::GetIamPolicyRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Iam::V1::GetIamPolicyRequest, ::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_iam_policy(resource: nil, options: nil)
            #   Pass arguments to `get_iam_policy` via keyword arguments. Note that at
            #   least one keyword argument is required. To specify no parameters, or to keep all
            #   the default parameter values, pass an empty Hash as a request object (see above).
            #
            #   @param resource [::String]
            #     REQUIRED: The resource for which the policy is being requested.
            #     See the operation documentation for the appropriate value for this field.
            #   @param options [::Google::Iam::V1::GetPolicyOptions, ::Hash]
            #     OPTIONAL: A `GetPolicyOptions` object for specifying options to
            #     `GetIamPolicy`.
            #
            # @yield [response, operation] Access the result along with the RPC operation
            # @yieldparam response [::Google::Iam::V1::Policy]
            # @yieldparam operation [::GRPC::ActiveCall::Operation]
            #
            # @return [::Google::Iam::V1::Policy]
            #
            # @raise [::Google::Cloud::Error] if the RPC is aborted.
            #
            # @example Basic example
            #   require "google/cloud/functions/v1"
            #
            #   # Create a client object. The client can be reused for multiple calls.
            #   client = Google::Cloud::Functions::V1::CloudFunctionsService::Client.new
            #
            #   # Create a request. To set request fields, pass in keyword arguments.
            #   request = Google::Iam::V1::GetIamPolicyRequest.new
            #
            #   # Call the get_iam_policy method.
            #   result = client.get_iam_policy request
            #
            #   # The returned object is of type Google::Iam::V1::Policy.
            #   p result
            #
            def get_iam_policy request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Iam::V1::GetIamPolicyRequest

              # 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_iam_policy.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::Functions::V1::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.resource
                header_params["resource"] = request.resource
              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_iam_policy.timeout,
                                     metadata:     metadata,
                                     retry_policy: @config.rpcs.get_iam_policy.retry_policy

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

              @cloud_functions_service_stub.call_rpc :get_iam_policy, 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

            ##
            # Tests the specified permissions against the IAM access control policy
            # for a function.
            # If the function does not exist, this will return an empty set of
            # permissions, not a NOT_FOUND error.
            #
            # @overload test_iam_permissions(request, options = nil)
            #   Pass arguments to `test_iam_permissions` via a request object, either of type
            #   {::Google::Iam::V1::TestIamPermissionsRequest} or an equivalent Hash.
            #
            #   @param request [::Google::Iam::V1::TestIamPermissionsRequest, ::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 test_iam_permissions(resource: nil, permissions: nil)
            #   Pass arguments to `test_iam_permissions` via keyword arguments. Note that at
            #   least one keyword argument is required. To specify no parameters, or to keep all
            #   the default parameter values, pass an empty Hash as a request object (see above).
            #
            #   @param resource [::String]
            #     REQUIRED: The resource for which the policy detail is being requested.
            #     See the operation documentation for the appropriate value for this field.
            #   @param permissions [::Array<::String>]
            #     The set of permissions to check for the `resource`. Permissions with
            #     wildcards (such as '*' or 'storage.*') are not allowed. For more
            #     information see
            #     [IAM Overview](https://cloud.google.com/iam/docs/overview#permissions).
            #
            # @yield [response, operation] Access the result along with the RPC operation
            # @yieldparam response [::Google::Iam::V1::TestIamPermissionsResponse]
            # @yieldparam operation [::GRPC::ActiveCall::Operation]
            #
            # @return [::Google::Iam::V1::TestIamPermissionsResponse]
            #
            # @raise [::Google::Cloud::Error] if the RPC is aborted.
            #
            # @example Basic example
            #   require "google/cloud/functions/v1"
            #
            #   # Create a client object. The client can be reused for multiple calls.
            #   client = Google::Cloud::Functions::V1::CloudFunctionsService::Client.new
            #
            #   # Create a request. To set request fields, pass in keyword arguments.
            #   request = Google::Iam::V1::TestIamPermissionsRequest.new
            #
            #   # Call the test_iam_permissions method.
            #   result = client.test_iam_permissions request
            #
            #   # The returned object is of type Google::Iam::V1::TestIamPermissionsResponse.
            #   p result
            #
            def test_iam_permissions request, options = nil
              raise ::ArgumentError, "request must be provided" if request.nil?

              request = ::Gapic::Protobuf.coerce request, to: ::Google::Iam::V1::TestIamPermissionsRequest

              # 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.test_iam_permissions.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::Functions::V1::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.resource
                header_params["resource"] = request.resource
              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.test_iam_permissions.timeout,
                                     metadata:     metadata,
                                     retry_policy: @config.rpcs.test_iam_permissions.retry_policy

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

              @cloud_functions_service_stub.call_rpc :test_iam_permissions, 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 CloudFunctionsService API.
            #
            # This class represents the configuration for CloudFunctionsService,
            # 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::Functions::V1::CloudFunctionsService::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_functions to 20 seconds,
            #   # and all remaining timeouts to 10 seconds.
            #   ::Google::Cloud::Functions::V1::CloudFunctionsService::Client.configure do |config|
            #     config.timeout = 10.0
            #     config.rpcs.list_functions.timeout = 20.0
            #   end
            #
            #   # Apply the above configuration only to a new client.
            #   client = ::Google::Cloud::Functions::V1::CloudFunctionsService::Client.new do |config|
            #     config.timeout = 10.0
            #     config.rpcs.list_functions.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 = "cloudfunctions.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 CloudFunctionsService 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_functions`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :list_functions
                ##
                # RPC-specific configuration for `get_function`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :get_function
                ##
                # RPC-specific configuration for `create_function`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :create_function
                ##
                # RPC-specific configuration for `update_function`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :update_function
                ##
                # RPC-specific configuration for `delete_function`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :delete_function
                ##
                # RPC-specific configuration for `call_function`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :call_function
                ##
                # RPC-specific configuration for `generate_upload_url`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :generate_upload_url
                ##
                # RPC-specific configuration for `generate_download_url`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :generate_download_url
                ##
                # RPC-specific configuration for `set_iam_policy`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :set_iam_policy
                ##
                # RPC-specific configuration for `get_iam_policy`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :get_iam_policy
                ##
                # RPC-specific configuration for `test_iam_permissions`
                # @return [::Gapic::Config::Method]
                #
                attr_reader :test_iam_permissions

                # @private
                def initialize parent_rpcs = nil
                  list_functions_config = parent_rpcs.list_functions if parent_rpcs.respond_to? :list_functions
                  @list_functions = ::Gapic::Config::Method.new list_functions_config
                  get_function_config = parent_rpcs.get_function if parent_rpcs.respond_to? :get_function
                  @get_function = ::Gapic::Config::Method.new get_function_config
                  create_function_config = parent_rpcs.create_function if parent_rpcs.respond_to? :create_function
                  @create_function = ::Gapic::Config::Method.new create_function_config
                  update_function_config = parent_rpcs.update_function if parent_rpcs.respond_to? :update_function
                  @update_function = ::Gapic::Config::Method.new update_function_config
                  delete_function_config = parent_rpcs.delete_function if parent_rpcs.respond_to? :delete_function
                  @delete_function = ::Gapic::Config::Method.new delete_function_config
                  call_function_config = parent_rpcs.call_function if parent_rpcs.respond_to? :call_function
                  @call_function = ::Gapic::Config::Method.new call_function_config
                  generate_upload_url_config = parent_rpcs.generate_upload_url if parent_rpcs.respond_to? :generate_upload_url
                  @generate_upload_url = ::Gapic::Config::Method.new generate_upload_url_config
                  generate_download_url_config = parent_rpcs.generate_download_url if parent_rpcs.respond_to? :generate_download_url
                  @generate_download_url = ::Gapic::Config::Method.new generate_download_url_config
                  set_iam_policy_config = parent_rpcs.set_iam_policy if parent_rpcs.respond_to? :set_iam_policy
                  @set_iam_policy = ::Gapic::Config::Method.new set_iam_policy_config
                  get_iam_policy_config = parent_rpcs.get_iam_policy if parent_rpcs.respond_to? :get_iam_policy
                  @get_iam_policy = ::Gapic::Config::Method.new get_iam_policy_config
                  test_iam_permissions_config = parent_rpcs.test_iam_permissions if parent_rpcs.respond_to? :test_iam_permissions
                  @test_iam_permissions = ::Gapic::Config::Method.new test_iam_permissions_config

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