# frozen_string_literal: true

# Copyright 2021 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

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

require "google/cloud/errors"
require "google/cloud/compute/v1/compute_pb"
require "google/cloud/compute/v1/instance_group_managers/rest/service_stub"
require "google/cloud/compute/v1/zone_operations/rest"

module Google
  module Cloud
    module Compute
      module V1
        module InstanceGroupManagers
          module Rest
            ##
            # REST client for the InstanceGroupManagers service.
            #
            # The InstanceGroupManagers API.
            #
            class Client
              # @private
              API_VERSION = ""

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

              # @private
              attr_reader :instance_group_managers_stub

              ##
              # Configure the InstanceGroupManagers Client class.
              #
              # See {::Google::Cloud::Compute::V1::InstanceGroupManagers::Rest::Client::Configuration}
              # for a description of the configuration fields.
              #
              # @example
              #
              #   # Modify the configuration for all InstanceGroupManagers clients
              #   ::Google::Cloud::Compute::V1::InstanceGroupManagers::Rest::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", "Compute", "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.abandon_instances.timeout = 600.0

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

                  default_config.rpcs.apply_updates_to_instances.timeout = 600.0

                  default_config.rpcs.create_instances.timeout = 600.0

                  default_config.rpcs.delete.timeout = 600.0

                  default_config.rpcs.delete_instances.timeout = 600.0

                  default_config.rpcs.delete_per_instance_configs.timeout = 600.0

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

                  default_config.rpcs.insert.timeout = 600.0

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

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

                  default_config.rpcs.list_managed_instances.timeout = 600.0

                  default_config.rpcs.list_per_instance_configs.timeout = 600.0

                  default_config.rpcs.patch.timeout = 600.0

                  default_config.rpcs.patch_per_instance_configs.timeout = 600.0

                  default_config.rpcs.recreate_instances.timeout = 600.0

                  default_config.rpcs.resize.timeout = 600.0

                  default_config.rpcs.resume_instances.timeout = 600.0

                  default_config.rpcs.set_instance_template.timeout = 600.0

                  default_config.rpcs.set_target_pools.timeout = 600.0

                  default_config.rpcs.start_instances.timeout = 600.0

                  default_config.rpcs.stop_instances.timeout = 600.0

                  default_config.rpcs.suspend_instances.timeout = 600.0

                  default_config.rpcs.update_per_instance_configs.timeout = 600.0

                  default_config
                end
                yield @configure if block_given?
                @configure
              end

              ##
              # Configure the InstanceGroupManagers 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::Compute::V1::InstanceGroupManagers::Rest::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
                @instance_group_managers_stub.universe_domain
              end

              ##
              # Create a new InstanceGroupManagers REST client object.
              #
              # @example
              #
              #   # Create a client using the default configuration
              #   client = ::Google::Cloud::Compute::V1::InstanceGroupManagers::Rest::Client.new
              #
              #   # Create a client using a custom configuration
              #   client = ::Google::Cloud::Compute::V1::InstanceGroupManagers::Rest::Client.new do |config|
              #     config.timeout = 10.0
              #   end
              #
              # @yield [config] Configure the InstanceGroupManagers client.
              # @yieldparam config [Client::Configuration]
              #
              def initialize
                # 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

                @zone_operations = ::Google::Cloud::Compute::V1::ZoneOperations::Rest::Client.new do |config|
                  config.credentials = credentials
                  config.quota_project = @quota_project_id
                  config.endpoint = @config.endpoint
                  config.universe_domain = @config.universe_domain
                end

                @instance_group_managers_stub = ::Google::Cloud::Compute::V1::InstanceGroupManagers::Rest::ServiceStub.new(
                  endpoint: @config.endpoint,
                  endpoint_template: DEFAULT_ENDPOINT_TEMPLATE,
                  universe_domain: @config.universe_domain,
                  credentials: credentials,
                  logger: @config.logger
                )

                @instance_group_managers_stub.logger(stub: true)&.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
              end

              ##
              # Get the associated client for long-running operations via ZoneOperations.
              #
              # @return [::Google::Cloud::Compute::V1::ZoneOperations::Rest::Client]
              #
              attr_reader :zone_operations

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

              # Service calls

              ##
              # Flags the specified instances to be removed from the managed instance group. Abandoning an instance does not delete the instance, but it does remove the instance from any target pools that are applied by the managed instance group. This method reduces the targetSize of the managed instance group by the number of instances that you abandon. This operation is marked as DONE when the action is scheduled even if the instances have not yet been removed from the group. You must separately verify the status of the abandoning action with the listmanagedinstances method. If the group is part of a backend service that has enabled connection draining, it can take up to 60 seconds after the connection draining duration has elapsed before the VM instance is removed or deleted. You can specify a maximum of 1000 instances with this method per request.
              #
              # @overload abandon_instances(request, options = nil)
              #   Pass arguments to `abandon_instances` via a request object, either of type
              #   {::Google::Cloud::Compute::V1::AbandonInstancesInstanceGroupManagerRequest} or an equivalent Hash.
              #
              #   @param request [::Google::Cloud::Compute::V1::AbandonInstancesInstanceGroupManagerRequest, ::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 abandon_instances(instance_group_manager: nil, instance_group_managers_abandon_instances_request_resource: nil, project: nil, request_id: nil, zone: nil)
              #   Pass arguments to `abandon_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 instance_group_manager [::String]
              #     The name of the managed instance group.
              #   @param instance_group_managers_abandon_instances_request_resource [::Google::Cloud::Compute::V1::InstanceGroupManagersAbandonInstancesRequest, ::Hash]
              #     The body resource for this request
              #   @param project [::String]
              #     Project ID for this request.
              #   @param request_id [::String]
              #     An optional request ID to identify requests. Specify a unique request ID so that if you must retry your request, the server will know to ignore the request if it has already been completed. 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 zone [::String]
              #     The name of the zone where the managed instance group is located.
              # @yield [result, operation] Access the result along with the TransportOperation object
              # @yieldparam result [::Gapic::GenericLRO::Operation]
              # @yieldparam operation [::Gapic::Rest::TransportOperation]
              #
              # @return [::Gapic::GenericLRO::Operation]
              #
              # @raise [::Google::Cloud::Error] if the REST call is aborted.
              #
              # @example Basic example
              #   require "google/cloud/compute/v1"
              #
              #   # Create a client object. The client can be reused for multiple calls.
              #   client = Google::Cloud::Compute::V1::InstanceGroupManagers::Rest::Client.new
              #
              #   # Create a request. To set request fields, pass in keyword arguments.
              #   request = Google::Cloud::Compute::V1::AbandonInstancesInstanceGroupManagerRequest.new
              #
              #   # Call the abandon_instances method.
              #   result = client.abandon_instances request
              #
              #   # The returned object is of type Google::Cloud::Compute::V1::Operation.
              #   p result
              #
              def abandon_instances request, options = nil
                raise ::ArgumentError, "request must be provided" if request.nil?

                request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::Compute::V1::AbandonInstancesInstanceGroupManagerRequest

                # 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
                call_metadata = @config.rpcs.abandon_instances.metadata.to_h

                # Set x-goog-api-client, x-goog-user-project and x-goog-api-version headers
                call_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::Compute::V1::VERSION,
                  transports_version_send: [:rest]

                call_metadata[:"x-goog-api-version"] = API_VERSION unless API_VERSION.empty?
                call_metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

                options.apply_defaults timeout:      @config.rpcs.abandon_instances.timeout,
                                       metadata:     call_metadata,
                                       retry_policy: @config.rpcs.abandon_instances.retry_policy

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

                @instance_group_managers_stub.abandon_instances request, options do |result, response|
                  result = ::Google::Cloud::Compute::V1::ZoneOperations::Rest::NonstandardLro.create_operation(
                    operation: result,
                    client: zone_operations,
                    request_values: {
                      "project" => request.project,
                      "zone" => request.zone
                    },
                    options: options
                  )
                  yield result, response if block_given?
                  throw :response, result
                end
              rescue ::Gapic::Rest::Error => e
                raise ::Google::Cloud::Error.from_error(e)
              end

              ##
              # Retrieves the list of managed instance groups and groups them by zone. To prevent failure, Google recommends that you set the `returnPartialSuccess` parameter to `true`.
              #
              # @overload aggregated_list(request, options = nil)
              #   Pass arguments to `aggregated_list` via a request object, either of type
              #   {::Google::Cloud::Compute::V1::AggregatedListInstanceGroupManagersRequest} or an equivalent Hash.
              #
              #   @param request [::Google::Cloud::Compute::V1::AggregatedListInstanceGroupManagersRequest, ::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 aggregated_list(filter: nil, include_all_scopes: nil, max_results: nil, order_by: nil, page_token: nil, project: nil, return_partial_success: nil, service_project_number: nil)
              #   Pass arguments to `aggregated_list` 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 filter [::String]
              #     A filter expression that filters resources listed in the response. Most Compute resources support two types of filter expressions: expressions that support regular expressions and expressions that follow API improvement proposal AIP-160. These two types of filter expressions cannot be mixed in one request. If you want to use AIP-160, your expression must specify the field name, an operator, and the value that you want to use for filtering. The value must be a string, a number, or a boolean. The operator must be either `=`, `!=`, `>`, `<`, `<=`, `>=` or `:`. For example, if you are filtering Compute Engine instances, you can exclude instances named `example-instance` by specifying `name != example-instance`. The `:*` comparison can be used to test whether a key has been defined. For example, to find all objects with `owner` label use: ``` labels.owner:* ``` You can also filter nested fields. For example, you could specify `scheduling.automaticRestart = false` to include instances only if they are not scheduled for automatic restarts. You can use filtering on nested fields to filter based on resource labels. To filter on multiple expressions, provide each separate expression within parentheses. For example: ``` (scheduling.automaticRestart = true) (cpuPlatform = "Intel Skylake") ``` By default, each expression is an `AND` expression. However, you can include `AND` and `OR` expressions explicitly. For example: ``` (cpuPlatform = "Intel Skylake") OR (cpuPlatform = "Intel Broadwell") AND (scheduling.automaticRestart = true) ``` If you want to use a regular expression, use the `eq` (equal) or `ne` (not equal) operator against a single un-parenthesized expression with or without quotes or against multiple parenthesized expressions. Examples: `fieldname eq unquoted literal` `fieldname eq 'single quoted literal'` `fieldname eq "double quoted literal"` `(fieldname1 eq literal) (fieldname2 ne "literal")` The literal value is interpreted as a regular expression using Google RE2 library syntax. The literal value must match the entire field. For example, to filter for instances that do not end with name "instance", you would use `name ne .*instance`. You cannot combine constraints on multiple fields using regular expressions.
              #   @param include_all_scopes [::Boolean]
              #     Indicates whether every visible scope for each scope type (zone, region, global) should be included in the response. For new resource types added after this field, the flag has no effect as new resource types will always include every visible scope for each scope type in response. For resource types which predate this field, if this flag is omitted or false, only scopes of the scope types where the resource type is expected to be found will be included.
              #   @param max_results [::Integer]
              #     The maximum number of results per page that should be returned. If the number of available results is larger than `maxResults`, Compute Engine returns a `nextPageToken` that can be used to get the next page of results in subsequent list requests. Acceptable values are `0` to `500`, inclusive. (Default: `500`)
              #   @param order_by [::String]
              #     Sorts list results by a certain order. By default, results are returned in alphanumerical order based on the resource name. You can also sort results in descending order based on the creation timestamp using `orderBy="creationTimestamp desc"`. This sorts results based on the `creationTimestamp` field in reverse chronological order (newest result first). Use this to sort resources like operations so that the newest operation is returned first. Currently, only sorting by `name` or `creationTimestamp desc` is supported.
              #   @param page_token [::String]
              #     Specifies a page token to use. Set `pageToken` to the `nextPageToken` returned by a previous list request to get the next page of results.
              #   @param project [::String]
              #     Project ID for this request.
              #   @param return_partial_success [::Boolean]
              #     Opt-in for partial success behavior which provides partial results in case of failure. The default value is false. For example, when partial success behavior is enabled, aggregatedList for a single zone scope either returns all resources in the zone or no resources, with an error code.
              #   @param service_project_number [::Integer]
              #     The Shared VPC service project id or service project number for which aggregated list request is invoked for subnetworks list-usable api.
              # @yield [result, operation] Access the result along with the TransportOperation object
              # @yieldparam result [::Gapic::Rest::PagedEnumerable<::String, ::Google::Cloud::Compute::V1::InstanceGroupManagersScopedList>]
              # @yieldparam operation [::Gapic::Rest::TransportOperation]
              #
              # @return [::Gapic::Rest::PagedEnumerable<::String, ::Google::Cloud::Compute::V1::InstanceGroupManagersScopedList>]
              #
              # @raise [::Google::Cloud::Error] if the REST call is aborted.
              #
              # @example Basic example
              #   require "google/cloud/compute/v1"
              #
              #   # Create a client object. The client can be reused for multiple calls.
              #   client = Google::Cloud::Compute::V1::InstanceGroupManagers::Rest::Client.new
              #
              #   # Create a request. To set request fields, pass in keyword arguments.
              #   request = Google::Cloud::Compute::V1::AggregatedListInstanceGroupManagersRequest.new
              #
              #   # Call the aggregated_list method.
              #   result = client.aggregated_list request
              #
              #   # The returned object is of type Google::Cloud::Compute::V1::InstanceGroupManagerAggregatedList.
              #   p result
              #
              def aggregated_list request, options = nil
                raise ::ArgumentError, "request must be provided" if request.nil?

                request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::Compute::V1::AggregatedListInstanceGroupManagersRequest

                # 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
                call_metadata = @config.rpcs.aggregated_list.metadata.to_h

                # Set x-goog-api-client, x-goog-user-project and x-goog-api-version headers
                call_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::Compute::V1::VERSION,
                  transports_version_send: [:rest]

                call_metadata[:"x-goog-api-version"] = API_VERSION unless API_VERSION.empty?
                call_metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

                options.apply_defaults timeout:      @config.rpcs.aggregated_list.timeout,
                                       metadata:     call_metadata,
                                       retry_policy: @config.rpcs.aggregated_list.retry_policy

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

                @instance_group_managers_stub.aggregated_list request, options do |result, operation|
                  result = ::Gapic::Rest::PagedEnumerable.new @instance_group_managers_stub, :aggregated_list, "items", request, result, options
                  yield result, operation if block_given?
                  throw :response, result
                end
              rescue ::Gapic::Rest::Error => e
                raise ::Google::Cloud::Error.from_error(e)
              end

              ##
              # Applies changes to selected instances on the managed instance group. This method can be used to apply new overrides and/or new versions.
              #
              # @overload apply_updates_to_instances(request, options = nil)
              #   Pass arguments to `apply_updates_to_instances` via a request object, either of type
              #   {::Google::Cloud::Compute::V1::ApplyUpdatesToInstancesInstanceGroupManagerRequest} or an equivalent Hash.
              #
              #   @param request [::Google::Cloud::Compute::V1::ApplyUpdatesToInstancesInstanceGroupManagerRequest, ::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 apply_updates_to_instances(instance_group_manager: nil, instance_group_managers_apply_updates_request_resource: nil, project: nil, zone: nil)
              #   Pass arguments to `apply_updates_to_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 instance_group_manager [::String]
              #     The name of the managed instance group, should conform to RFC1035.
              #   @param instance_group_managers_apply_updates_request_resource [::Google::Cloud::Compute::V1::InstanceGroupManagersApplyUpdatesRequest, ::Hash]
              #     The body resource for this request
              #   @param project [::String]
              #     Project ID for this request.
              #   @param zone [::String]
              #     The name of the zone where the managed instance group is located. Should conform to RFC1035.
              # @yield [result, operation] Access the result along with the TransportOperation object
              # @yieldparam result [::Gapic::GenericLRO::Operation]
              # @yieldparam operation [::Gapic::Rest::TransportOperation]
              #
              # @return [::Gapic::GenericLRO::Operation]
              #
              # @raise [::Google::Cloud::Error] if the REST call is aborted.
              #
              # @example Basic example
              #   require "google/cloud/compute/v1"
              #
              #   # Create a client object. The client can be reused for multiple calls.
              #   client = Google::Cloud::Compute::V1::InstanceGroupManagers::Rest::Client.new
              #
              #   # Create a request. To set request fields, pass in keyword arguments.
              #   request = Google::Cloud::Compute::V1::ApplyUpdatesToInstancesInstanceGroupManagerRequest.new
              #
              #   # Call the apply_updates_to_instances method.
              #   result = client.apply_updates_to_instances request
              #
              #   # The returned object is of type Google::Cloud::Compute::V1::Operation.
              #   p result
              #
              def apply_updates_to_instances request, options = nil
                raise ::ArgumentError, "request must be provided" if request.nil?

                request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::Compute::V1::ApplyUpdatesToInstancesInstanceGroupManagerRequest

                # 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
                call_metadata = @config.rpcs.apply_updates_to_instances.metadata.to_h

                # Set x-goog-api-client, x-goog-user-project and x-goog-api-version headers
                call_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::Compute::V1::VERSION,
                  transports_version_send: [:rest]

                call_metadata[:"x-goog-api-version"] = API_VERSION unless API_VERSION.empty?
                call_metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

                options.apply_defaults timeout:      @config.rpcs.apply_updates_to_instances.timeout,
                                       metadata:     call_metadata,
                                       retry_policy: @config.rpcs.apply_updates_to_instances.retry_policy

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

                @instance_group_managers_stub.apply_updates_to_instances request, options do |result, response|
                  result = ::Google::Cloud::Compute::V1::ZoneOperations::Rest::NonstandardLro.create_operation(
                    operation: result,
                    client: zone_operations,
                    request_values: {
                      "project" => request.project,
                      "zone" => request.zone
                    },
                    options: options
                  )
                  yield result, response if block_given?
                  throw :response, result
                end
              rescue ::Gapic::Rest::Error => e
                raise ::Google::Cloud::Error.from_error(e)
              end

              ##
              # Creates instances with per-instance configurations in this managed instance group. Instances are created using the current instance template. The create instances operation is marked DONE if the createInstances request is successful. The underlying actions take additional time. You must separately verify the status of the creating or actions with the listmanagedinstances method.
              #
              # @overload create_instances(request, options = nil)
              #   Pass arguments to `create_instances` via a request object, either of type
              #   {::Google::Cloud::Compute::V1::CreateInstancesInstanceGroupManagerRequest} or an equivalent Hash.
              #
              #   @param request [::Google::Cloud::Compute::V1::CreateInstancesInstanceGroupManagerRequest, ::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_instances(instance_group_manager: nil, instance_group_managers_create_instances_request_resource: nil, project: nil, request_id: nil, zone: nil)
              #   Pass arguments to `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 instance_group_manager [::String]
              #     The name of the managed instance group. It should conform to RFC1035.
              #   @param instance_group_managers_create_instances_request_resource [::Google::Cloud::Compute::V1::InstanceGroupManagersCreateInstancesRequest, ::Hash]
              #     The body resource for this request
              #   @param project [::String]
              #     Project ID for this request.
              #   @param request_id [::String]
              #     An optional request ID to identify requests. Specify a unique request ID so that if you must retry your request, the server will know to ignore the request if it has already been completed. 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. The request ID must be a valid UUID with the exception that zero UUID is not supported ( 00000000-0000-0000-0000-000000000000).
              #   @param zone [::String]
              #     The name of the zone where the managed instance group is located. It should conform to RFC1035.
              # @yield [result, operation] Access the result along with the TransportOperation object
              # @yieldparam result [::Gapic::GenericLRO::Operation]
              # @yieldparam operation [::Gapic::Rest::TransportOperation]
              #
              # @return [::Gapic::GenericLRO::Operation]
              #
              # @raise [::Google::Cloud::Error] if the REST call is aborted.
              #
              # @example Basic example
              #   require "google/cloud/compute/v1"
              #
              #   # Create a client object. The client can be reused for multiple calls.
              #   client = Google::Cloud::Compute::V1::InstanceGroupManagers::Rest::Client.new
              #
              #   # Create a request. To set request fields, pass in keyword arguments.
              #   request = Google::Cloud::Compute::V1::CreateInstancesInstanceGroupManagerRequest.new
              #
              #   # Call the create_instances method.
              #   result = client.create_instances request
              #
              #   # The returned object is of type Google::Cloud::Compute::V1::Operation.
              #   p result
              #
              def create_instances request, options = nil
                raise ::ArgumentError, "request must be provided" if request.nil?

                request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::Compute::V1::CreateInstancesInstanceGroupManagerRequest

                # 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
                call_metadata = @config.rpcs.create_instances.metadata.to_h

                # Set x-goog-api-client, x-goog-user-project and x-goog-api-version headers
                call_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::Compute::V1::VERSION,
                  transports_version_send: [:rest]

                call_metadata[:"x-goog-api-version"] = API_VERSION unless API_VERSION.empty?
                call_metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

                options.apply_defaults timeout:      @config.rpcs.create_instances.timeout,
                                       metadata:     call_metadata,
                                       retry_policy: @config.rpcs.create_instances.retry_policy

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

                @instance_group_managers_stub.create_instances request, options do |result, response|
                  result = ::Google::Cloud::Compute::V1::ZoneOperations::Rest::NonstandardLro.create_operation(
                    operation: result,
                    client: zone_operations,
                    request_values: {
                      "project" => request.project,
                      "zone" => request.zone
                    },
                    options: options
                  )
                  yield result, response if block_given?
                  throw :response, result
                end
              rescue ::Gapic::Rest::Error => e
                raise ::Google::Cloud::Error.from_error(e)
              end

              ##
              # Deletes the specified managed instance group and all of the instances in that group. Note that the instance group must not belong to a backend service. Read Deleting an instance group for more information.
              #
              # @overload delete(request, options = nil)
              #   Pass arguments to `delete` via a request object, either of type
              #   {::Google::Cloud::Compute::V1::DeleteInstanceGroupManagerRequest} or an equivalent Hash.
              #
              #   @param request [::Google::Cloud::Compute::V1::DeleteInstanceGroupManagerRequest, ::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_group_manager: nil, project: nil, request_id: nil, zone: nil)
              #   Pass arguments to `delete` via keyword arguments. Note that at
              #   least one keyword argument is required. To specify no parameters, or to keep all
              #   the default parameter values, pass an empty Hash as a request object (see above).
              #
              #   @param instance_group_manager [::String]
              #     The name of the managed instance group to delete.
              #   @param project [::String]
              #     Project ID for this request.
              #   @param request_id [::String]
              #     An optional request ID to identify requests. Specify a unique request ID so that if you must retry your request, the server will know to ignore the request if it has already been completed. 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 zone [::String]
              #     The name of the zone where the managed instance group is located.
              # @yield [result, operation] Access the result along with the TransportOperation object
              # @yieldparam result [::Gapic::GenericLRO::Operation]
              # @yieldparam operation [::Gapic::Rest::TransportOperation]
              #
              # @return [::Gapic::GenericLRO::Operation]
              #
              # @raise [::Google::Cloud::Error] if the REST call is aborted.
              #
              # @example Basic example
              #   require "google/cloud/compute/v1"
              #
              #   # Create a client object. The client can be reused for multiple calls.
              #   client = Google::Cloud::Compute::V1::InstanceGroupManagers::Rest::Client.new
              #
              #   # Create a request. To set request fields, pass in keyword arguments.
              #   request = Google::Cloud::Compute::V1::DeleteInstanceGroupManagerRequest.new
              #
              #   # Call the delete method.
              #   result = client.delete request
              #
              #   # The returned object is of type Google::Cloud::Compute::V1::Operation.
              #   p result
              #
              def delete request, options = nil
                raise ::ArgumentError, "request must be provided" if request.nil?

                request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::Compute::V1::DeleteInstanceGroupManagerRequest

                # 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
                call_metadata = @config.rpcs.delete.metadata.to_h

                # Set x-goog-api-client, x-goog-user-project and x-goog-api-version headers
                call_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::Compute::V1::VERSION,
                  transports_version_send: [:rest]

                call_metadata[:"x-goog-api-version"] = API_VERSION unless API_VERSION.empty?
                call_metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

                options.apply_defaults timeout:      @config.rpcs.delete.timeout,
                                       metadata:     call_metadata,
                                       retry_policy: @config.rpcs.delete.retry_policy

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

                @instance_group_managers_stub.delete request, options do |result, response|
                  result = ::Google::Cloud::Compute::V1::ZoneOperations::Rest::NonstandardLro.create_operation(
                    operation: result,
                    client: zone_operations,
                    request_values: {
                      "project" => request.project,
                      "zone" => request.zone
                    },
                    options: options
                  )
                  yield result, response if block_given?
                  throw :response, result
                end
              rescue ::Gapic::Rest::Error => e
                raise ::Google::Cloud::Error.from_error(e)
              end

              ##
              # Flags the specified instances in the managed instance group for immediate deletion. The instances are also removed from any target pools of which they were a member. This method reduces the targetSize of the managed instance group by the number of instances that you delete. This operation is marked as DONE when the action is scheduled even if the instances are still being deleted. You must separately verify the status of the deleting action with the listmanagedinstances method. If the group is part of a backend service that has enabled connection draining, it can take up to 60 seconds after the connection draining duration has elapsed before the VM instance is removed or deleted. You can specify a maximum of 1000 instances with this method per request.
              #
              # @overload delete_instances(request, options = nil)
              #   Pass arguments to `delete_instances` via a request object, either of type
              #   {::Google::Cloud::Compute::V1::DeleteInstancesInstanceGroupManagerRequest} or an equivalent Hash.
              #
              #   @param request [::Google::Cloud::Compute::V1::DeleteInstancesInstanceGroupManagerRequest, ::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_instances(instance_group_manager: nil, instance_group_managers_delete_instances_request_resource: nil, project: nil, request_id: nil, zone: nil)
              #   Pass arguments to `delete_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 instance_group_manager [::String]
              #     The name of the managed instance group.
              #   @param instance_group_managers_delete_instances_request_resource [::Google::Cloud::Compute::V1::InstanceGroupManagersDeleteInstancesRequest, ::Hash]
              #     The body resource for this request
              #   @param project [::String]
              #     Project ID for this request.
              #   @param request_id [::String]
              #     An optional request ID to identify requests. Specify a unique request ID so that if you must retry your request, the server will know to ignore the request if it has already been completed. 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 zone [::String]
              #     The name of the zone where the managed instance group is located.
              # @yield [result, operation] Access the result along with the TransportOperation object
              # @yieldparam result [::Gapic::GenericLRO::Operation]
              # @yieldparam operation [::Gapic::Rest::TransportOperation]
              #
              # @return [::Gapic::GenericLRO::Operation]
              #
              # @raise [::Google::Cloud::Error] if the REST call is aborted.
              #
              # @example Basic example
              #   require "google/cloud/compute/v1"
              #
              #   # Create a client object. The client can be reused for multiple calls.
              #   client = Google::Cloud::Compute::V1::InstanceGroupManagers::Rest::Client.new
              #
              #   # Create a request. To set request fields, pass in keyword arguments.
              #   request = Google::Cloud::Compute::V1::DeleteInstancesInstanceGroupManagerRequest.new
              #
              #   # Call the delete_instances method.
              #   result = client.delete_instances request
              #
              #   # The returned object is of type Google::Cloud::Compute::V1::Operation.
              #   p result
              #
              def delete_instances request, options = nil
                raise ::ArgumentError, "request must be provided" if request.nil?

                request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::Compute::V1::DeleteInstancesInstanceGroupManagerRequest

                # 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
                call_metadata = @config.rpcs.delete_instances.metadata.to_h

                # Set x-goog-api-client, x-goog-user-project and x-goog-api-version headers
                call_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::Compute::V1::VERSION,
                  transports_version_send: [:rest]

                call_metadata[:"x-goog-api-version"] = API_VERSION unless API_VERSION.empty?
                call_metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

                options.apply_defaults timeout:      @config.rpcs.delete_instances.timeout,
                                       metadata:     call_metadata,
                                       retry_policy: @config.rpcs.delete_instances.retry_policy

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

                @instance_group_managers_stub.delete_instances request, options do |result, response|
                  result = ::Google::Cloud::Compute::V1::ZoneOperations::Rest::NonstandardLro.create_operation(
                    operation: result,
                    client: zone_operations,
                    request_values: {
                      "project" => request.project,
                      "zone" => request.zone
                    },
                    options: options
                  )
                  yield result, response if block_given?
                  throw :response, result
                end
              rescue ::Gapic::Rest::Error => e
                raise ::Google::Cloud::Error.from_error(e)
              end

              ##
              # Deletes selected per-instance configurations for the managed instance group.
              #
              # @overload delete_per_instance_configs(request, options = nil)
              #   Pass arguments to `delete_per_instance_configs` via a request object, either of type
              #   {::Google::Cloud::Compute::V1::DeletePerInstanceConfigsInstanceGroupManagerRequest} or an equivalent Hash.
              #
              #   @param request [::Google::Cloud::Compute::V1::DeletePerInstanceConfigsInstanceGroupManagerRequest, ::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_per_instance_configs(instance_group_manager: nil, instance_group_managers_delete_per_instance_configs_req_resource: nil, project: nil, zone: nil)
              #   Pass arguments to `delete_per_instance_configs` via keyword arguments. Note that at
              #   least one keyword argument is required. To specify no parameters, or to keep all
              #   the default parameter values, pass an empty Hash as a request object (see above).
              #
              #   @param instance_group_manager [::String]
              #     The name of the managed instance group. It should conform to RFC1035.
              #   @param instance_group_managers_delete_per_instance_configs_req_resource [::Google::Cloud::Compute::V1::InstanceGroupManagersDeletePerInstanceConfigsReq, ::Hash]
              #     The body resource for this request
              #   @param project [::String]
              #     Project ID for this request.
              #   @param zone [::String]
              #     The name of the zone where the managed instance group is located. It should conform to RFC1035.
              # @yield [result, operation] Access the result along with the TransportOperation object
              # @yieldparam result [::Gapic::GenericLRO::Operation]
              # @yieldparam operation [::Gapic::Rest::TransportOperation]
              #
              # @return [::Gapic::GenericLRO::Operation]
              #
              # @raise [::Google::Cloud::Error] if the REST call is aborted.
              #
              # @example Basic example
              #   require "google/cloud/compute/v1"
              #
              #   # Create a client object. The client can be reused for multiple calls.
              #   client = Google::Cloud::Compute::V1::InstanceGroupManagers::Rest::Client.new
              #
              #   # Create a request. To set request fields, pass in keyword arguments.
              #   request = Google::Cloud::Compute::V1::DeletePerInstanceConfigsInstanceGroupManagerRequest.new
              #
              #   # Call the delete_per_instance_configs method.
              #   result = client.delete_per_instance_configs request
              #
              #   # The returned object is of type Google::Cloud::Compute::V1::Operation.
              #   p result
              #
              def delete_per_instance_configs request, options = nil
                raise ::ArgumentError, "request must be provided" if request.nil?

                request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::Compute::V1::DeletePerInstanceConfigsInstanceGroupManagerRequest

                # 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
                call_metadata = @config.rpcs.delete_per_instance_configs.metadata.to_h

                # Set x-goog-api-client, x-goog-user-project and x-goog-api-version headers
                call_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::Compute::V1::VERSION,
                  transports_version_send: [:rest]

                call_metadata[:"x-goog-api-version"] = API_VERSION unless API_VERSION.empty?
                call_metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

                options.apply_defaults timeout:      @config.rpcs.delete_per_instance_configs.timeout,
                                       metadata:     call_metadata,
                                       retry_policy: @config.rpcs.delete_per_instance_configs.retry_policy

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

                @instance_group_managers_stub.delete_per_instance_configs request, options do |result, response|
                  result = ::Google::Cloud::Compute::V1::ZoneOperations::Rest::NonstandardLro.create_operation(
                    operation: result,
                    client: zone_operations,
                    request_values: {
                      "project" => request.project,
                      "zone" => request.zone
                    },
                    options: options
                  )
                  yield result, response if block_given?
                  throw :response, result
                end
              rescue ::Gapic::Rest::Error => e
                raise ::Google::Cloud::Error.from_error(e)
              end

              ##
              # Returns all of the details about the specified managed instance group.
              #
              # @overload get(request, options = nil)
              #   Pass arguments to `get` via a request object, either of type
              #   {::Google::Cloud::Compute::V1::GetInstanceGroupManagerRequest} or an equivalent Hash.
              #
              #   @param request [::Google::Cloud::Compute::V1::GetInstanceGroupManagerRequest, ::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_group_manager: nil, project: nil, zone: nil)
              #   Pass arguments to `get` via keyword arguments. Note that at
              #   least one keyword argument is required. To specify no parameters, or to keep all
              #   the default parameter values, pass an empty Hash as a request object (see above).
              #
              #   @param instance_group_manager [::String]
              #     The name of the managed instance group.
              #   @param project [::String]
              #     Project ID for this request.
              #   @param zone [::String]
              #     The name of the zone where the managed instance group is located.
              # @yield [result, operation] Access the result along with the TransportOperation object
              # @yieldparam result [::Google::Cloud::Compute::V1::InstanceGroupManager]
              # @yieldparam operation [::Gapic::Rest::TransportOperation]
              #
              # @return [::Google::Cloud::Compute::V1::InstanceGroupManager]
              #
              # @raise [::Google::Cloud::Error] if the REST call is aborted.
              #
              # @example Basic example
              #   require "google/cloud/compute/v1"
              #
              #   # Create a client object. The client can be reused for multiple calls.
              #   client = Google::Cloud::Compute::V1::InstanceGroupManagers::Rest::Client.new
              #
              #   # Create a request. To set request fields, pass in keyword arguments.
              #   request = Google::Cloud::Compute::V1::GetInstanceGroupManagerRequest.new
              #
              #   # Call the get method.
              #   result = client.get request
              #
              #   # The returned object is of type Google::Cloud::Compute::V1::InstanceGroupManager.
              #   p result
              #
              def get request, options = nil
                raise ::ArgumentError, "request must be provided" if request.nil?

                request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::Compute::V1::GetInstanceGroupManagerRequest

                # 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
                call_metadata = @config.rpcs.get.metadata.to_h

                # Set x-goog-api-client, x-goog-user-project and x-goog-api-version headers
                call_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::Compute::V1::VERSION,
                  transports_version_send: [:rest]

                call_metadata[:"x-goog-api-version"] = API_VERSION unless API_VERSION.empty?
                call_metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

                options.apply_defaults timeout:      @config.rpcs.get.timeout,
                                       metadata:     call_metadata,
                                       retry_policy: @config.rpcs.get.retry_policy

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

                @instance_group_managers_stub.get request, options do |result, operation|
                  yield result, operation if block_given?
                end
              rescue ::Gapic::Rest::Error => e
                raise ::Google::Cloud::Error.from_error(e)
              end

              ##
              # Creates a managed instance group using the information that you specify in the request. After the group is created, instances in the group are created using the specified instance template. This operation is marked as DONE when the group is created even if the instances in the group have not yet been created. You must separately verify the status of the individual instances with the listmanagedinstances method. A managed instance group can have up to 1000 VM instances per group. Please contact Cloud Support if you need an increase in this limit.
              #
              # @overload insert(request, options = nil)
              #   Pass arguments to `insert` via a request object, either of type
              #   {::Google::Cloud::Compute::V1::InsertInstanceGroupManagerRequest} or an equivalent Hash.
              #
              #   @param request [::Google::Cloud::Compute::V1::InsertInstanceGroupManagerRequest, ::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 insert(instance_group_manager_resource: nil, project: nil, request_id: nil, zone: nil)
              #   Pass arguments to `insert` via keyword arguments. Note that at
              #   least one keyword argument is required. To specify no parameters, or to keep all
              #   the default parameter values, pass an empty Hash as a request object (see above).
              #
              #   @param instance_group_manager_resource [::Google::Cloud::Compute::V1::InstanceGroupManager, ::Hash]
              #     The body resource for this request
              #   @param project [::String]
              #     Project ID for this request.
              #   @param request_id [::String]
              #     An optional request ID to identify requests. Specify a unique request ID so that if you must retry your request, the server will know to ignore the request if it has already been completed. 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 zone [::String]
              #     The name of the zone where you want to create the managed instance group.
              # @yield [result, operation] Access the result along with the TransportOperation object
              # @yieldparam result [::Gapic::GenericLRO::Operation]
              # @yieldparam operation [::Gapic::Rest::TransportOperation]
              #
              # @return [::Gapic::GenericLRO::Operation]
              #
              # @raise [::Google::Cloud::Error] if the REST call is aborted.
              #
              # @example Basic example
              #   require "google/cloud/compute/v1"
              #
              #   # Create a client object. The client can be reused for multiple calls.
              #   client = Google::Cloud::Compute::V1::InstanceGroupManagers::Rest::Client.new
              #
              #   # Create a request. To set request fields, pass in keyword arguments.
              #   request = Google::Cloud::Compute::V1::InsertInstanceGroupManagerRequest.new
              #
              #   # Call the insert method.
              #   result = client.insert request
              #
              #   # The returned object is of type Google::Cloud::Compute::V1::Operation.
              #   p result
              #
              def insert request, options = nil
                raise ::ArgumentError, "request must be provided" if request.nil?

                request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::Compute::V1::InsertInstanceGroupManagerRequest

                # 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
                call_metadata = @config.rpcs.insert.metadata.to_h

                # Set x-goog-api-client, x-goog-user-project and x-goog-api-version headers
                call_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::Compute::V1::VERSION,
                  transports_version_send: [:rest]

                call_metadata[:"x-goog-api-version"] = API_VERSION unless API_VERSION.empty?
                call_metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

                options.apply_defaults timeout:      @config.rpcs.insert.timeout,
                                       metadata:     call_metadata,
                                       retry_policy: @config.rpcs.insert.retry_policy

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

                @instance_group_managers_stub.insert request, options do |result, response|
                  result = ::Google::Cloud::Compute::V1::ZoneOperations::Rest::NonstandardLro.create_operation(
                    operation: result,
                    client: zone_operations,
                    request_values: {
                      "project" => request.project,
                      "zone" => request.zone
                    },
                    options: options
                  )
                  yield result, response if block_given?
                  throw :response, result
                end
              rescue ::Gapic::Rest::Error => e
                raise ::Google::Cloud::Error.from_error(e)
              end

              ##
              # Retrieves a list of managed instance groups that are contained within the specified project and zone.
              #
              # @overload list(request, options = nil)
              #   Pass arguments to `list` via a request object, either of type
              #   {::Google::Cloud::Compute::V1::ListInstanceGroupManagersRequest} or an equivalent Hash.
              #
              #   @param request [::Google::Cloud::Compute::V1::ListInstanceGroupManagersRequest, ::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(filter: nil, max_results: nil, order_by: nil, page_token: nil, project: nil, return_partial_success: nil, zone: nil)
              #   Pass arguments to `list` 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 filter [::String]
              #     A filter expression that filters resources listed in the response. Most Compute resources support two types of filter expressions: expressions that support regular expressions and expressions that follow API improvement proposal AIP-160. These two types of filter expressions cannot be mixed in one request. If you want to use AIP-160, your expression must specify the field name, an operator, and the value that you want to use for filtering. The value must be a string, a number, or a boolean. The operator must be either `=`, `!=`, `>`, `<`, `<=`, `>=` or `:`. For example, if you are filtering Compute Engine instances, you can exclude instances named `example-instance` by specifying `name != example-instance`. The `:*` comparison can be used to test whether a key has been defined. For example, to find all objects with `owner` label use: ``` labels.owner:* ``` You can also filter nested fields. For example, you could specify `scheduling.automaticRestart = false` to include instances only if they are not scheduled for automatic restarts. You can use filtering on nested fields to filter based on resource labels. To filter on multiple expressions, provide each separate expression within parentheses. For example: ``` (scheduling.automaticRestart = true) (cpuPlatform = "Intel Skylake") ``` By default, each expression is an `AND` expression. However, you can include `AND` and `OR` expressions explicitly. For example: ``` (cpuPlatform = "Intel Skylake") OR (cpuPlatform = "Intel Broadwell") AND (scheduling.automaticRestart = true) ``` If you want to use a regular expression, use the `eq` (equal) or `ne` (not equal) operator against a single un-parenthesized expression with or without quotes or against multiple parenthesized expressions. Examples: `fieldname eq unquoted literal` `fieldname eq 'single quoted literal'` `fieldname eq "double quoted literal"` `(fieldname1 eq literal) (fieldname2 ne "literal")` The literal value is interpreted as a regular expression using Google RE2 library syntax. The literal value must match the entire field. For example, to filter for instances that do not end with name "instance", you would use `name ne .*instance`. You cannot combine constraints on multiple fields using regular expressions.
              #   @param max_results [::Integer]
              #     The maximum number of results per page that should be returned. If the number of available results is larger than `maxResults`, Compute Engine returns a `nextPageToken` that can be used to get the next page of results in subsequent list requests. Acceptable values are `0` to `500`, inclusive. (Default: `500`)
              #   @param order_by [::String]
              #     Sorts list results by a certain order. By default, results are returned in alphanumerical order based on the resource name. You can also sort results in descending order based on the creation timestamp using `orderBy="creationTimestamp desc"`. This sorts results based on the `creationTimestamp` field in reverse chronological order (newest result first). Use this to sort resources like operations so that the newest operation is returned first. Currently, only sorting by `name` or `creationTimestamp desc` is supported.
              #   @param page_token [::String]
              #     Specifies a page token to use. Set `pageToken` to the `nextPageToken` returned by a previous list request to get the next page of results.
              #   @param project [::String]
              #     Project ID for this request.
              #   @param return_partial_success [::Boolean]
              #     Opt-in for partial success behavior which provides partial results in case of failure. The default value is false. For example, when partial success behavior is enabled, aggregatedList for a single zone scope either returns all resources in the zone or no resources, with an error code.
              #   @param zone [::String]
              #     The name of the zone where the managed instance group is located.
              # @yield [result, operation] Access the result along with the TransportOperation object
              # @yieldparam result [::Gapic::Rest::PagedEnumerable<::Google::Cloud::Compute::V1::InstanceGroupManager>]
              # @yieldparam operation [::Gapic::Rest::TransportOperation]
              #
              # @return [::Gapic::Rest::PagedEnumerable<::Google::Cloud::Compute::V1::InstanceGroupManager>]
              #
              # @raise [::Google::Cloud::Error] if the REST call is aborted.
              #
              # @example Basic example
              #   require "google/cloud/compute/v1"
              #
              #   # Create a client object. The client can be reused for multiple calls.
              #   client = Google::Cloud::Compute::V1::InstanceGroupManagers::Rest::Client.new
              #
              #   # Create a request. To set request fields, pass in keyword arguments.
              #   request = Google::Cloud::Compute::V1::ListInstanceGroupManagersRequest.new
              #
              #   # Call the list method.
              #   result = client.list request
              #
              #   # The returned object is of type Google::Cloud::Compute::V1::InstanceGroupManagerList.
              #   p result
              #
              def list request, options = nil
                raise ::ArgumentError, "request must be provided" if request.nil?

                request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::Compute::V1::ListInstanceGroupManagersRequest

                # 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
                call_metadata = @config.rpcs.list.metadata.to_h

                # Set x-goog-api-client, x-goog-user-project and x-goog-api-version headers
                call_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::Compute::V1::VERSION,
                  transports_version_send: [:rest]

                call_metadata[:"x-goog-api-version"] = API_VERSION unless API_VERSION.empty?
                call_metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

                options.apply_defaults timeout:      @config.rpcs.list.timeout,
                                       metadata:     call_metadata,
                                       retry_policy: @config.rpcs.list.retry_policy

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

                @instance_group_managers_stub.list request, options do |result, operation|
                  result = ::Gapic::Rest::PagedEnumerable.new @instance_group_managers_stub, :list, "items", request, result, options
                  yield result, operation if block_given?
                  throw :response, result
                end
              rescue ::Gapic::Rest::Error => e
                raise ::Google::Cloud::Error.from_error(e)
              end

              ##
              # Lists all errors thrown by actions on instances for a given managed instance group. The filter and orderBy query parameters are not supported.
              #
              # @overload list_errors(request, options = nil)
              #   Pass arguments to `list_errors` via a request object, either of type
              #   {::Google::Cloud::Compute::V1::ListErrorsInstanceGroupManagersRequest} or an equivalent Hash.
              #
              #   @param request [::Google::Cloud::Compute::V1::ListErrorsInstanceGroupManagersRequest, ::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_errors(filter: nil, instance_group_manager: nil, max_results: nil, order_by: nil, page_token: nil, project: nil, return_partial_success: nil, zone: nil)
              #   Pass arguments to `list_errors` 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 filter [::String]
              #     A filter expression that filters resources listed in the response. Most Compute resources support two types of filter expressions: expressions that support regular expressions and expressions that follow API improvement proposal AIP-160. These two types of filter expressions cannot be mixed in one request. If you want to use AIP-160, your expression must specify the field name, an operator, and the value that you want to use for filtering. The value must be a string, a number, or a boolean. The operator must be either `=`, `!=`, `>`, `<`, `<=`, `>=` or `:`. For example, if you are filtering Compute Engine instances, you can exclude instances named `example-instance` by specifying `name != example-instance`. The `:*` comparison can be used to test whether a key has been defined. For example, to find all objects with `owner` label use: ``` labels.owner:* ``` You can also filter nested fields. For example, you could specify `scheduling.automaticRestart = false` to include instances only if they are not scheduled for automatic restarts. You can use filtering on nested fields to filter based on resource labels. To filter on multiple expressions, provide each separate expression within parentheses. For example: ``` (scheduling.automaticRestart = true) (cpuPlatform = "Intel Skylake") ``` By default, each expression is an `AND` expression. However, you can include `AND` and `OR` expressions explicitly. For example: ``` (cpuPlatform = "Intel Skylake") OR (cpuPlatform = "Intel Broadwell") AND (scheduling.automaticRestart = true) ``` If you want to use a regular expression, use the `eq` (equal) or `ne` (not equal) operator against a single un-parenthesized expression with or without quotes or against multiple parenthesized expressions. Examples: `fieldname eq unquoted literal` `fieldname eq 'single quoted literal'` `fieldname eq "double quoted literal"` `(fieldname1 eq literal) (fieldname2 ne "literal")` The literal value is interpreted as a regular expression using Google RE2 library syntax. The literal value must match the entire field. For example, to filter for instances that do not end with name "instance", you would use `name ne .*instance`. You cannot combine constraints on multiple fields using regular expressions.
              #   @param instance_group_manager [::String]
              #     The name of the managed instance group. It must be a string that meets the requirements in RFC1035, or an unsigned long integer: must match regexp pattern: (?:[a-z](?:[-a-z0-9]\\{0,61}[a-z0-9])?)|1-9\\{0,19}.
              #   @param max_results [::Integer]
              #     The maximum number of results per page that should be returned. If the number of available results is larger than `maxResults`, Compute Engine returns a `nextPageToken` that can be used to get the next page of results in subsequent list requests. Acceptable values are `0` to `500`, inclusive. (Default: `500`)
              #   @param order_by [::String]
              #     Sorts list results by a certain order. By default, results are returned in alphanumerical order based on the resource name. You can also sort results in descending order based on the creation timestamp using `orderBy="creationTimestamp desc"`. This sorts results based on the `creationTimestamp` field in reverse chronological order (newest result first). Use this to sort resources like operations so that the newest operation is returned first. Currently, only sorting by `name` or `creationTimestamp desc` is supported.
              #   @param page_token [::String]
              #     Specifies a page token to use. Set `pageToken` to the `nextPageToken` returned by a previous list request to get the next page of results.
              #   @param project [::String]
              #     Project ID for this request.
              #   @param return_partial_success [::Boolean]
              #     Opt-in for partial success behavior which provides partial results in case of failure. The default value is false. For example, when partial success behavior is enabled, aggregatedList for a single zone scope either returns all resources in the zone or no resources, with an error code.
              #   @param zone [::String]
              #     The name of the zone where the managed instance group is located. It should conform to RFC1035.
              # @yield [result, operation] Access the result along with the TransportOperation object
              # @yieldparam result [::Gapic::Rest::PagedEnumerable<::Google::Cloud::Compute::V1::InstanceManagedByIgmError>]
              # @yieldparam operation [::Gapic::Rest::TransportOperation]
              #
              # @return [::Gapic::Rest::PagedEnumerable<::Google::Cloud::Compute::V1::InstanceManagedByIgmError>]
              #
              # @raise [::Google::Cloud::Error] if the REST call is aborted.
              #
              # @example Basic example
              #   require "google/cloud/compute/v1"
              #
              #   # Create a client object. The client can be reused for multiple calls.
              #   client = Google::Cloud::Compute::V1::InstanceGroupManagers::Rest::Client.new
              #
              #   # Create a request. To set request fields, pass in keyword arguments.
              #   request = Google::Cloud::Compute::V1::ListErrorsInstanceGroupManagersRequest.new
              #
              #   # Call the list_errors method.
              #   result = client.list_errors request
              #
              #   # The returned object is of type Google::Cloud::Compute::V1::InstanceGroupManagersListErrorsResponse.
              #   p result
              #
              def list_errors request, options = nil
                raise ::ArgumentError, "request must be provided" if request.nil?

                request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::Compute::V1::ListErrorsInstanceGroupManagersRequest

                # 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
                call_metadata = @config.rpcs.list_errors.metadata.to_h

                # Set x-goog-api-client, x-goog-user-project and x-goog-api-version headers
                call_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::Compute::V1::VERSION,
                  transports_version_send: [:rest]

                call_metadata[:"x-goog-api-version"] = API_VERSION unless API_VERSION.empty?
                call_metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

                options.apply_defaults timeout:      @config.rpcs.list_errors.timeout,
                                       metadata:     call_metadata,
                                       retry_policy: @config.rpcs.list_errors.retry_policy

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

                @instance_group_managers_stub.list_errors request, options do |result, operation|
                  result = ::Gapic::Rest::PagedEnumerable.new @instance_group_managers_stub, :list_errors, "items", request, result, options
                  yield result, operation if block_given?
                  throw :response, result
                end
              rescue ::Gapic::Rest::Error => e
                raise ::Google::Cloud::Error.from_error(e)
              end

              ##
              # Lists all of the instances in the managed instance group. Each instance in the list has a currentAction, which indicates the action that the managed instance group is performing on the instance. For example, if the group is still creating an instance, the currentAction is CREATING. If a previous action failed, the list displays the errors for that failed action. The orderBy query parameter is not supported. The `pageToken` query parameter is supported only if the group's `listManagedInstancesResults` field is set to `PAGINATED`.
              #
              # @overload list_managed_instances(request, options = nil)
              #   Pass arguments to `list_managed_instances` via a request object, either of type
              #   {::Google::Cloud::Compute::V1::ListManagedInstancesInstanceGroupManagersRequest} or an equivalent Hash.
              #
              #   @param request [::Google::Cloud::Compute::V1::ListManagedInstancesInstanceGroupManagersRequest, ::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_managed_instances(filter: nil, instance_group_manager: nil, max_results: nil, order_by: nil, page_token: nil, project: nil, return_partial_success: nil, zone: nil)
              #   Pass arguments to `list_managed_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 filter [::String]
              #     A filter expression that filters resources listed in the response. Most Compute resources support two types of filter expressions: expressions that support regular expressions and expressions that follow API improvement proposal AIP-160. These two types of filter expressions cannot be mixed in one request. If you want to use AIP-160, your expression must specify the field name, an operator, and the value that you want to use for filtering. The value must be a string, a number, or a boolean. The operator must be either `=`, `!=`, `>`, `<`, `<=`, `>=` or `:`. For example, if you are filtering Compute Engine instances, you can exclude instances named `example-instance` by specifying `name != example-instance`. The `:*` comparison can be used to test whether a key has been defined. For example, to find all objects with `owner` label use: ``` labels.owner:* ``` You can also filter nested fields. For example, you could specify `scheduling.automaticRestart = false` to include instances only if they are not scheduled for automatic restarts. You can use filtering on nested fields to filter based on resource labels. To filter on multiple expressions, provide each separate expression within parentheses. For example: ``` (scheduling.automaticRestart = true) (cpuPlatform = "Intel Skylake") ``` By default, each expression is an `AND` expression. However, you can include `AND` and `OR` expressions explicitly. For example: ``` (cpuPlatform = "Intel Skylake") OR (cpuPlatform = "Intel Broadwell") AND (scheduling.automaticRestart = true) ``` If you want to use a regular expression, use the `eq` (equal) or `ne` (not equal) operator against a single un-parenthesized expression with or without quotes or against multiple parenthesized expressions. Examples: `fieldname eq unquoted literal` `fieldname eq 'single quoted literal'` `fieldname eq "double quoted literal"` `(fieldname1 eq literal) (fieldname2 ne "literal")` The literal value is interpreted as a regular expression using Google RE2 library syntax. The literal value must match the entire field. For example, to filter for instances that do not end with name "instance", you would use `name ne .*instance`. You cannot combine constraints on multiple fields using regular expressions.
              #   @param instance_group_manager [::String]
              #     The name of the managed instance group.
              #   @param max_results [::Integer]
              #     The maximum number of results per page that should be returned. If the number of available results is larger than `maxResults`, Compute Engine returns a `nextPageToken` that can be used to get the next page of results in subsequent list requests. Acceptable values are `0` to `500`, inclusive. (Default: `500`)
              #   @param order_by [::String]
              #     Sorts list results by a certain order. By default, results are returned in alphanumerical order based on the resource name. You can also sort results in descending order based on the creation timestamp using `orderBy="creationTimestamp desc"`. This sorts results based on the `creationTimestamp` field in reverse chronological order (newest result first). Use this to sort resources like operations so that the newest operation is returned first. Currently, only sorting by `name` or `creationTimestamp desc` is supported.
              #   @param page_token [::String]
              #     Specifies a page token to use. Set `pageToken` to the `nextPageToken` returned by a previous list request to get the next page of results.
              #   @param project [::String]
              #     Project ID for this request.
              #   @param return_partial_success [::Boolean]
              #     Opt-in for partial success behavior which provides partial results in case of failure. The default value is false. For example, when partial success behavior is enabled, aggregatedList for a single zone scope either returns all resources in the zone or no resources, with an error code.
              #   @param zone [::String]
              #     The name of the zone where the managed instance group is located.
              # @yield [result, operation] Access the result along with the TransportOperation object
              # @yieldparam result [::Gapic::Rest::PagedEnumerable<::Google::Cloud::Compute::V1::ManagedInstance>]
              # @yieldparam operation [::Gapic::Rest::TransportOperation]
              #
              # @return [::Gapic::Rest::PagedEnumerable<::Google::Cloud::Compute::V1::ManagedInstance>]
              #
              # @raise [::Google::Cloud::Error] if the REST call is aborted.
              #
              # @example Basic example
              #   require "google/cloud/compute/v1"
              #
              #   # Create a client object. The client can be reused for multiple calls.
              #   client = Google::Cloud::Compute::V1::InstanceGroupManagers::Rest::Client.new
              #
              #   # Create a request. To set request fields, pass in keyword arguments.
              #   request = Google::Cloud::Compute::V1::ListManagedInstancesInstanceGroupManagersRequest.new
              #
              #   # Call the list_managed_instances method.
              #   result = client.list_managed_instances request
              #
              #   # The returned object is of type Google::Cloud::Compute::V1::InstanceGroupManagersListManagedInstancesResponse.
              #   p result
              #
              def list_managed_instances request, options = nil
                raise ::ArgumentError, "request must be provided" if request.nil?

                request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::Compute::V1::ListManagedInstancesInstanceGroupManagersRequest

                # 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
                call_metadata = @config.rpcs.list_managed_instances.metadata.to_h

                # Set x-goog-api-client, x-goog-user-project and x-goog-api-version headers
                call_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::Compute::V1::VERSION,
                  transports_version_send: [:rest]

                call_metadata[:"x-goog-api-version"] = API_VERSION unless API_VERSION.empty?
                call_metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

                options.apply_defaults timeout:      @config.rpcs.list_managed_instances.timeout,
                                       metadata:     call_metadata,
                                       retry_policy: @config.rpcs.list_managed_instances.retry_policy

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

                @instance_group_managers_stub.list_managed_instances request, options do |result, operation|
                  result = ::Gapic::Rest::PagedEnumerable.new @instance_group_managers_stub, :list_managed_instances, "managed_instances", request, result, options
                  yield result, operation if block_given?
                  throw :response, result
                end
              rescue ::Gapic::Rest::Error => e
                raise ::Google::Cloud::Error.from_error(e)
              end

              ##
              # Lists all of the per-instance configurations defined for the managed instance group. The orderBy query parameter is not supported.
              #
              # @overload list_per_instance_configs(request, options = nil)
              #   Pass arguments to `list_per_instance_configs` via a request object, either of type
              #   {::Google::Cloud::Compute::V1::ListPerInstanceConfigsInstanceGroupManagersRequest} or an equivalent Hash.
              #
              #   @param request [::Google::Cloud::Compute::V1::ListPerInstanceConfigsInstanceGroupManagersRequest, ::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_per_instance_configs(filter: nil, instance_group_manager: nil, max_results: nil, order_by: nil, page_token: nil, project: nil, return_partial_success: nil, zone: nil)
              #   Pass arguments to `list_per_instance_configs` 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 filter [::String]
              #     A filter expression that filters resources listed in the response. Most Compute resources support two types of filter expressions: expressions that support regular expressions and expressions that follow API improvement proposal AIP-160. These two types of filter expressions cannot be mixed in one request. If you want to use AIP-160, your expression must specify the field name, an operator, and the value that you want to use for filtering. The value must be a string, a number, or a boolean. The operator must be either `=`, `!=`, `>`, `<`, `<=`, `>=` or `:`. For example, if you are filtering Compute Engine instances, you can exclude instances named `example-instance` by specifying `name != example-instance`. The `:*` comparison can be used to test whether a key has been defined. For example, to find all objects with `owner` label use: ``` labels.owner:* ``` You can also filter nested fields. For example, you could specify `scheduling.automaticRestart = false` to include instances only if they are not scheduled for automatic restarts. You can use filtering on nested fields to filter based on resource labels. To filter on multiple expressions, provide each separate expression within parentheses. For example: ``` (scheduling.automaticRestart = true) (cpuPlatform = "Intel Skylake") ``` By default, each expression is an `AND` expression. However, you can include `AND` and `OR` expressions explicitly. For example: ``` (cpuPlatform = "Intel Skylake") OR (cpuPlatform = "Intel Broadwell") AND (scheduling.automaticRestart = true) ``` If you want to use a regular expression, use the `eq` (equal) or `ne` (not equal) operator against a single un-parenthesized expression with or without quotes or against multiple parenthesized expressions. Examples: `fieldname eq unquoted literal` `fieldname eq 'single quoted literal'` `fieldname eq "double quoted literal"` `(fieldname1 eq literal) (fieldname2 ne "literal")` The literal value is interpreted as a regular expression using Google RE2 library syntax. The literal value must match the entire field. For example, to filter for instances that do not end with name "instance", you would use `name ne .*instance`. You cannot combine constraints on multiple fields using regular expressions.
              #   @param instance_group_manager [::String]
              #     The name of the managed instance group. It should conform to RFC1035.
              #   @param max_results [::Integer]
              #     The maximum number of results per page that should be returned. If the number of available results is larger than `maxResults`, Compute Engine returns a `nextPageToken` that can be used to get the next page of results in subsequent list requests. Acceptable values are `0` to `500`, inclusive. (Default: `500`)
              #   @param order_by [::String]
              #     Sorts list results by a certain order. By default, results are returned in alphanumerical order based on the resource name. You can also sort results in descending order based on the creation timestamp using `orderBy="creationTimestamp desc"`. This sorts results based on the `creationTimestamp` field in reverse chronological order (newest result first). Use this to sort resources like operations so that the newest operation is returned first. Currently, only sorting by `name` or `creationTimestamp desc` is supported.
              #   @param page_token [::String]
              #     Specifies a page token to use. Set `pageToken` to the `nextPageToken` returned by a previous list request to get the next page of results.
              #   @param project [::String]
              #     Project ID for this request.
              #   @param return_partial_success [::Boolean]
              #     Opt-in for partial success behavior which provides partial results in case of failure. The default value is false. For example, when partial success behavior is enabled, aggregatedList for a single zone scope either returns all resources in the zone or no resources, with an error code.
              #   @param zone [::String]
              #     The name of the zone where the managed instance group is located. It should conform to RFC1035.
              # @yield [result, operation] Access the result along with the TransportOperation object
              # @yieldparam result [::Gapic::Rest::PagedEnumerable<::Google::Cloud::Compute::V1::PerInstanceConfig>]
              # @yieldparam operation [::Gapic::Rest::TransportOperation]
              #
              # @return [::Gapic::Rest::PagedEnumerable<::Google::Cloud::Compute::V1::PerInstanceConfig>]
              #
              # @raise [::Google::Cloud::Error] if the REST call is aborted.
              #
              # @example Basic example
              #   require "google/cloud/compute/v1"
              #
              #   # Create a client object. The client can be reused for multiple calls.
              #   client = Google::Cloud::Compute::V1::InstanceGroupManagers::Rest::Client.new
              #
              #   # Create a request. To set request fields, pass in keyword arguments.
              #   request = Google::Cloud::Compute::V1::ListPerInstanceConfigsInstanceGroupManagersRequest.new
              #
              #   # Call the list_per_instance_configs method.
              #   result = client.list_per_instance_configs request
              #
              #   # The returned object is of type Google::Cloud::Compute::V1::InstanceGroupManagersListPerInstanceConfigsResp.
              #   p result
              #
              def list_per_instance_configs request, options = nil
                raise ::ArgumentError, "request must be provided" if request.nil?

                request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::Compute::V1::ListPerInstanceConfigsInstanceGroupManagersRequest

                # 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
                call_metadata = @config.rpcs.list_per_instance_configs.metadata.to_h

                # Set x-goog-api-client, x-goog-user-project and x-goog-api-version headers
                call_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::Compute::V1::VERSION,
                  transports_version_send: [:rest]

                call_metadata[:"x-goog-api-version"] = API_VERSION unless API_VERSION.empty?
                call_metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

                options.apply_defaults timeout:      @config.rpcs.list_per_instance_configs.timeout,
                                       metadata:     call_metadata,
                                       retry_policy: @config.rpcs.list_per_instance_configs.retry_policy

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

                @instance_group_managers_stub.list_per_instance_configs request, options do |result, operation|
                  result = ::Gapic::Rest::PagedEnumerable.new @instance_group_managers_stub, :list_per_instance_configs, "items", request, result, options
                  yield result, operation if block_given?
                  throw :response, result
                end
              rescue ::Gapic::Rest::Error => e
                raise ::Google::Cloud::Error.from_error(e)
              end

              ##
              # Updates a managed instance group using the information that you specify in the request. This operation is marked as DONE when the group is patched even if the instances in the group are still in the process of being patched. You must separately verify the status of the individual instances with the listManagedInstances method. This method supports PATCH semantics and uses the JSON merge patch format and processing rules. If you update your group to specify a new template or instance configuration, it's possible that your intended specification for each VM in the group is different from the current state of that VM. To learn how to apply an updated configuration to the VMs in a MIG, see Updating instances in a MIG.
              #
              # @overload patch(request, options = nil)
              #   Pass arguments to `patch` via a request object, either of type
              #   {::Google::Cloud::Compute::V1::PatchInstanceGroupManagerRequest} or an equivalent Hash.
              #
              #   @param request [::Google::Cloud::Compute::V1::PatchInstanceGroupManagerRequest, ::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 patch(instance_group_manager: nil, instance_group_manager_resource: nil, project: nil, request_id: nil, zone: nil)
              #   Pass arguments to `patch` via keyword arguments. Note that at
              #   least one keyword argument is required. To specify no parameters, or to keep all
              #   the default parameter values, pass an empty Hash as a request object (see above).
              #
              #   @param instance_group_manager [::String]
              #     The name of the instance group manager.
              #   @param instance_group_manager_resource [::Google::Cloud::Compute::V1::InstanceGroupManager, ::Hash]
              #     The body resource for this request
              #   @param project [::String]
              #     Project ID for this request.
              #   @param request_id [::String]
              #     An optional request ID to identify requests. Specify a unique request ID so that if you must retry your request, the server will know to ignore the request if it has already been completed. 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 zone [::String]
              #     The name of the zone where you want to create the managed instance group.
              # @yield [result, operation] Access the result along with the TransportOperation object
              # @yieldparam result [::Gapic::GenericLRO::Operation]
              # @yieldparam operation [::Gapic::Rest::TransportOperation]
              #
              # @return [::Gapic::GenericLRO::Operation]
              #
              # @raise [::Google::Cloud::Error] if the REST call is aborted.
              #
              # @example Basic example
              #   require "google/cloud/compute/v1"
              #
              #   # Create a client object. The client can be reused for multiple calls.
              #   client = Google::Cloud::Compute::V1::InstanceGroupManagers::Rest::Client.new
              #
              #   # Create a request. To set request fields, pass in keyword arguments.
              #   request = Google::Cloud::Compute::V1::PatchInstanceGroupManagerRequest.new
              #
              #   # Call the patch method.
              #   result = client.patch request
              #
              #   # The returned object is of type Google::Cloud::Compute::V1::Operation.
              #   p result
              #
              def patch request, options = nil
                raise ::ArgumentError, "request must be provided" if request.nil?

                request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::Compute::V1::PatchInstanceGroupManagerRequest

                # 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
                call_metadata = @config.rpcs.patch.metadata.to_h

                # Set x-goog-api-client, x-goog-user-project and x-goog-api-version headers
                call_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::Compute::V1::VERSION,
                  transports_version_send: [:rest]

                call_metadata[:"x-goog-api-version"] = API_VERSION unless API_VERSION.empty?
                call_metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

                options.apply_defaults timeout:      @config.rpcs.patch.timeout,
                                       metadata:     call_metadata,
                                       retry_policy: @config.rpcs.patch.retry_policy

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

                @instance_group_managers_stub.patch request, options do |result, response|
                  result = ::Google::Cloud::Compute::V1::ZoneOperations::Rest::NonstandardLro.create_operation(
                    operation: result,
                    client: zone_operations,
                    request_values: {
                      "project" => request.project,
                      "zone" => request.zone
                    },
                    options: options
                  )
                  yield result, response if block_given?
                  throw :response, result
                end
              rescue ::Gapic::Rest::Error => e
                raise ::Google::Cloud::Error.from_error(e)
              end

              ##
              # Inserts or patches per-instance configurations for the managed instance group. perInstanceConfig.name serves as a key used to distinguish whether to perform insert or patch.
              #
              # @overload patch_per_instance_configs(request, options = nil)
              #   Pass arguments to `patch_per_instance_configs` via a request object, either of type
              #   {::Google::Cloud::Compute::V1::PatchPerInstanceConfigsInstanceGroupManagerRequest} or an equivalent Hash.
              #
              #   @param request [::Google::Cloud::Compute::V1::PatchPerInstanceConfigsInstanceGroupManagerRequest, ::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 patch_per_instance_configs(instance_group_manager: nil, instance_group_managers_patch_per_instance_configs_req_resource: nil, project: nil, request_id: nil, zone: nil)
              #   Pass arguments to `patch_per_instance_configs` via keyword arguments. Note that at
              #   least one keyword argument is required. To specify no parameters, or to keep all
              #   the default parameter values, pass an empty Hash as a request object (see above).
              #
              #   @param instance_group_manager [::String]
              #     The name of the managed instance group. It should conform to RFC1035.
              #   @param instance_group_managers_patch_per_instance_configs_req_resource [::Google::Cloud::Compute::V1::InstanceGroupManagersPatchPerInstanceConfigsReq, ::Hash]
              #     The body resource for this request
              #   @param project [::String]
              #     Project ID for this request.
              #   @param request_id [::String]
              #     An optional request ID to identify requests. Specify a unique request ID so that if you must retry your request, the server will know to ignore the request if it has already been completed. 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 zone [::String]
              #     The name of the zone where the managed instance group is located. It should conform to RFC1035.
              # @yield [result, operation] Access the result along with the TransportOperation object
              # @yieldparam result [::Gapic::GenericLRO::Operation]
              # @yieldparam operation [::Gapic::Rest::TransportOperation]
              #
              # @return [::Gapic::GenericLRO::Operation]
              #
              # @raise [::Google::Cloud::Error] if the REST call is aborted.
              #
              # @example Basic example
              #   require "google/cloud/compute/v1"
              #
              #   # Create a client object. The client can be reused for multiple calls.
              #   client = Google::Cloud::Compute::V1::InstanceGroupManagers::Rest::Client.new
              #
              #   # Create a request. To set request fields, pass in keyword arguments.
              #   request = Google::Cloud::Compute::V1::PatchPerInstanceConfigsInstanceGroupManagerRequest.new
              #
              #   # Call the patch_per_instance_configs method.
              #   result = client.patch_per_instance_configs request
              #
              #   # The returned object is of type Google::Cloud::Compute::V1::Operation.
              #   p result
              #
              def patch_per_instance_configs request, options = nil
                raise ::ArgumentError, "request must be provided" if request.nil?

                request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::Compute::V1::PatchPerInstanceConfigsInstanceGroupManagerRequest

                # 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
                call_metadata = @config.rpcs.patch_per_instance_configs.metadata.to_h

                # Set x-goog-api-client, x-goog-user-project and x-goog-api-version headers
                call_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::Compute::V1::VERSION,
                  transports_version_send: [:rest]

                call_metadata[:"x-goog-api-version"] = API_VERSION unless API_VERSION.empty?
                call_metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

                options.apply_defaults timeout:      @config.rpcs.patch_per_instance_configs.timeout,
                                       metadata:     call_metadata,
                                       retry_policy: @config.rpcs.patch_per_instance_configs.retry_policy

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

                @instance_group_managers_stub.patch_per_instance_configs request, options do |result, response|
                  result = ::Google::Cloud::Compute::V1::ZoneOperations::Rest::NonstandardLro.create_operation(
                    operation: result,
                    client: zone_operations,
                    request_values: {
                      "project" => request.project,
                      "zone" => request.zone
                    },
                    options: options
                  )
                  yield result, response if block_given?
                  throw :response, result
                end
              rescue ::Gapic::Rest::Error => e
                raise ::Google::Cloud::Error.from_error(e)
              end

              ##
              # Flags the specified VM instances in the managed instance group to be immediately recreated. Each instance is recreated using the group's current configuration. This operation is marked as DONE when the flag is set even if the instances have not yet been recreated. You must separately verify the status of each instance by checking its currentAction field; for more information, see Checking the status of managed instances. If the group is part of a backend service that has enabled connection draining, it can take up to 60 seconds after the connection draining duration has elapsed before the VM instance is removed or deleted. You can specify a maximum of 1000 instances with this method per request.
              #
              # @overload recreate_instances(request, options = nil)
              #   Pass arguments to `recreate_instances` via a request object, either of type
              #   {::Google::Cloud::Compute::V1::RecreateInstancesInstanceGroupManagerRequest} or an equivalent Hash.
              #
              #   @param request [::Google::Cloud::Compute::V1::RecreateInstancesInstanceGroupManagerRequest, ::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 recreate_instances(instance_group_manager: nil, instance_group_managers_recreate_instances_request_resource: nil, project: nil, request_id: nil, zone: nil)
              #   Pass arguments to `recreate_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 instance_group_manager [::String]
              #     The name of the managed instance group.
              #   @param instance_group_managers_recreate_instances_request_resource [::Google::Cloud::Compute::V1::InstanceGroupManagersRecreateInstancesRequest, ::Hash]
              #     The body resource for this request
              #   @param project [::String]
              #     Project ID for this request.
              #   @param request_id [::String]
              #     An optional request ID to identify requests. Specify a unique request ID so that if you must retry your request, the server will know to ignore the request if it has already been completed. 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 zone [::String]
              #     The name of the zone where the managed instance group is located.
              # @yield [result, operation] Access the result along with the TransportOperation object
              # @yieldparam result [::Gapic::GenericLRO::Operation]
              # @yieldparam operation [::Gapic::Rest::TransportOperation]
              #
              # @return [::Gapic::GenericLRO::Operation]
              #
              # @raise [::Google::Cloud::Error] if the REST call is aborted.
              #
              # @example Basic example
              #   require "google/cloud/compute/v1"
              #
              #   # Create a client object. The client can be reused for multiple calls.
              #   client = Google::Cloud::Compute::V1::InstanceGroupManagers::Rest::Client.new
              #
              #   # Create a request. To set request fields, pass in keyword arguments.
              #   request = Google::Cloud::Compute::V1::RecreateInstancesInstanceGroupManagerRequest.new
              #
              #   # Call the recreate_instances method.
              #   result = client.recreate_instances request
              #
              #   # The returned object is of type Google::Cloud::Compute::V1::Operation.
              #   p result
              #
              def recreate_instances request, options = nil
                raise ::ArgumentError, "request must be provided" if request.nil?

                request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::Compute::V1::RecreateInstancesInstanceGroupManagerRequest

                # 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
                call_metadata = @config.rpcs.recreate_instances.metadata.to_h

                # Set x-goog-api-client, x-goog-user-project and x-goog-api-version headers
                call_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::Compute::V1::VERSION,
                  transports_version_send: [:rest]

                call_metadata[:"x-goog-api-version"] = API_VERSION unless API_VERSION.empty?
                call_metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

                options.apply_defaults timeout:      @config.rpcs.recreate_instances.timeout,
                                       metadata:     call_metadata,
                                       retry_policy: @config.rpcs.recreate_instances.retry_policy

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

                @instance_group_managers_stub.recreate_instances request, options do |result, response|
                  result = ::Google::Cloud::Compute::V1::ZoneOperations::Rest::NonstandardLro.create_operation(
                    operation: result,
                    client: zone_operations,
                    request_values: {
                      "project" => request.project,
                      "zone" => request.zone
                    },
                    options: options
                  )
                  yield result, response if block_given?
                  throw :response, result
                end
              rescue ::Gapic::Rest::Error => e
                raise ::Google::Cloud::Error.from_error(e)
              end

              ##
              # Resizes the managed instance group. If you increase the size, the group creates new instances using the current instance template. If you decrease the size, the group deletes instances. The resize operation is marked DONE when the resize actions are scheduled even if the group has not yet added or deleted any instances. You must separately verify the status of the creating or deleting actions with the listmanagedinstances method. When resizing down, the instance group arbitrarily chooses the order in which VMs are deleted. The group takes into account some VM attributes when making the selection including: + The status of the VM instance. + The health of the VM instance. + The instance template version the VM is based on. + For regional managed instance groups, the location of the VM instance. This list is subject to change. If the group is part of a backend service that has enabled connection draining, it can take up to 60 seconds after the connection draining duration has elapsed before the VM instance is removed or deleted.
              #
              # @overload resize(request, options = nil)
              #   Pass arguments to `resize` via a request object, either of type
              #   {::Google::Cloud::Compute::V1::ResizeInstanceGroupManagerRequest} or an equivalent Hash.
              #
              #   @param request [::Google::Cloud::Compute::V1::ResizeInstanceGroupManagerRequest, ::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 resize(instance_group_manager: nil, project: nil, request_id: nil, size: nil, zone: nil)
              #   Pass arguments to `resize` via keyword arguments. Note that at
              #   least one keyword argument is required. To specify no parameters, or to keep all
              #   the default parameter values, pass an empty Hash as a request object (see above).
              #
              #   @param instance_group_manager [::String]
              #     The name of the managed instance group.
              #   @param project [::String]
              #     Project ID for this request.
              #   @param request_id [::String]
              #     An optional request ID to identify requests. Specify a unique request ID so that if you must retry your request, the server will know to ignore the request if it has already been completed. 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 size [::Integer]
              #     The number of running instances that the managed instance group should maintain at any given time. The group automatically adds or removes instances to maintain the number of instances specified by this parameter.
              #   @param zone [::String]
              #     The name of the zone where the managed instance group is located.
              # @yield [result, operation] Access the result along with the TransportOperation object
              # @yieldparam result [::Gapic::GenericLRO::Operation]
              # @yieldparam operation [::Gapic::Rest::TransportOperation]
              #
              # @return [::Gapic::GenericLRO::Operation]
              #
              # @raise [::Google::Cloud::Error] if the REST call is aborted.
              #
              # @example Basic example
              #   require "google/cloud/compute/v1"
              #
              #   # Create a client object. The client can be reused for multiple calls.
              #   client = Google::Cloud::Compute::V1::InstanceGroupManagers::Rest::Client.new
              #
              #   # Create a request. To set request fields, pass in keyword arguments.
              #   request = Google::Cloud::Compute::V1::ResizeInstanceGroupManagerRequest.new
              #
              #   # Call the resize method.
              #   result = client.resize request
              #
              #   # The returned object is of type Google::Cloud::Compute::V1::Operation.
              #   p result
              #
              def resize request, options = nil
                raise ::ArgumentError, "request must be provided" if request.nil?

                request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::Compute::V1::ResizeInstanceGroupManagerRequest

                # 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
                call_metadata = @config.rpcs.resize.metadata.to_h

                # Set x-goog-api-client, x-goog-user-project and x-goog-api-version headers
                call_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::Compute::V1::VERSION,
                  transports_version_send: [:rest]

                call_metadata[:"x-goog-api-version"] = API_VERSION unless API_VERSION.empty?
                call_metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

                options.apply_defaults timeout:      @config.rpcs.resize.timeout,
                                       metadata:     call_metadata,
                                       retry_policy: @config.rpcs.resize.retry_policy

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

                @instance_group_managers_stub.resize request, options do |result, response|
                  result = ::Google::Cloud::Compute::V1::ZoneOperations::Rest::NonstandardLro.create_operation(
                    operation: result,
                    client: zone_operations,
                    request_values: {
                      "project" => request.project,
                      "zone" => request.zone
                    },
                    options: options
                  )
                  yield result, response if block_given?
                  throw :response, result
                end
              rescue ::Gapic::Rest::Error => e
                raise ::Google::Cloud::Error.from_error(e)
              end

              ##
              # Flags the specified instances in the managed instance group to be resumed. This method increases the targetSize and decreases the targetSuspendedSize of the managed instance group by the number of instances that you resume. The resumeInstances operation is marked DONE if the resumeInstances request is successful. The underlying actions take additional time. You must separately verify the status of the RESUMING action with the listmanagedinstances method. In this request, you can only specify instances that are suspended. For example, if an instance was previously suspended using the suspendInstances method, it can be resumed using the resumeInstances method. If a health check is attached to the managed instance group, the specified instances will be verified as healthy after they are resumed. You can specify a maximum of 1000 instances with this method per request.
              #
              # @overload resume_instances(request, options = nil)
              #   Pass arguments to `resume_instances` via a request object, either of type
              #   {::Google::Cloud::Compute::V1::ResumeInstancesInstanceGroupManagerRequest} or an equivalent Hash.
              #
              #   @param request [::Google::Cloud::Compute::V1::ResumeInstancesInstanceGroupManagerRequest, ::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 resume_instances(instance_group_manager: nil, instance_group_managers_resume_instances_request_resource: nil, project: nil, request_id: nil, zone: nil)
              #   Pass arguments to `resume_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 instance_group_manager [::String]
              #     The name of the managed instance group.
              #   @param instance_group_managers_resume_instances_request_resource [::Google::Cloud::Compute::V1::InstanceGroupManagersResumeInstancesRequest, ::Hash]
              #     The body resource for this request
              #   @param project [::String]
              #     Project ID for this request.
              #   @param request_id [::String]
              #     An optional request ID to identify requests. Specify a unique request ID so that if you must retry your request, the server will know to ignore the request if it has already been completed. 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 zone [::String]
              #     The name of the zone where the managed instance group is located.
              # @yield [result, operation] Access the result along with the TransportOperation object
              # @yieldparam result [::Gapic::GenericLRO::Operation]
              # @yieldparam operation [::Gapic::Rest::TransportOperation]
              #
              # @return [::Gapic::GenericLRO::Operation]
              #
              # @raise [::Google::Cloud::Error] if the REST call is aborted.
              #
              # @example Basic example
              #   require "google/cloud/compute/v1"
              #
              #   # Create a client object. The client can be reused for multiple calls.
              #   client = Google::Cloud::Compute::V1::InstanceGroupManagers::Rest::Client.new
              #
              #   # Create a request. To set request fields, pass in keyword arguments.
              #   request = Google::Cloud::Compute::V1::ResumeInstancesInstanceGroupManagerRequest.new
              #
              #   # Call the resume_instances method.
              #   result = client.resume_instances request
              #
              #   # The returned object is of type Google::Cloud::Compute::V1::Operation.
              #   p result
              #
              def resume_instances request, options = nil
                raise ::ArgumentError, "request must be provided" if request.nil?

                request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::Compute::V1::ResumeInstancesInstanceGroupManagerRequest

                # 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
                call_metadata = @config.rpcs.resume_instances.metadata.to_h

                # Set x-goog-api-client, x-goog-user-project and x-goog-api-version headers
                call_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::Compute::V1::VERSION,
                  transports_version_send: [:rest]

                call_metadata[:"x-goog-api-version"] = API_VERSION unless API_VERSION.empty?
                call_metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

                options.apply_defaults timeout:      @config.rpcs.resume_instances.timeout,
                                       metadata:     call_metadata,
                                       retry_policy: @config.rpcs.resume_instances.retry_policy

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

                @instance_group_managers_stub.resume_instances request, options do |result, response|
                  result = ::Google::Cloud::Compute::V1::ZoneOperations::Rest::NonstandardLro.create_operation(
                    operation: result,
                    client: zone_operations,
                    request_values: {
                      "project" => request.project,
                      "zone" => request.zone
                    },
                    options: options
                  )
                  yield result, response if block_given?
                  throw :response, result
                end
              rescue ::Gapic::Rest::Error => e
                raise ::Google::Cloud::Error.from_error(e)
              end

              ##
              # Specifies the instance template to use when creating new instances in this group. The templates for existing instances in the group do not change unless you run recreateInstances, run applyUpdatesToInstances, or set the group's updatePolicy.type to PROACTIVE.
              #
              # @overload set_instance_template(request, options = nil)
              #   Pass arguments to `set_instance_template` via a request object, either of type
              #   {::Google::Cloud::Compute::V1::SetInstanceTemplateInstanceGroupManagerRequest} or an equivalent Hash.
              #
              #   @param request [::Google::Cloud::Compute::V1::SetInstanceTemplateInstanceGroupManagerRequest, ::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_instance_template(instance_group_manager: nil, instance_group_managers_set_instance_template_request_resource: nil, project: nil, request_id: nil, zone: nil)
              #   Pass arguments to `set_instance_template` via keyword arguments. Note that at
              #   least one keyword argument is required. To specify no parameters, or to keep all
              #   the default parameter values, pass an empty Hash as a request object (see above).
              #
              #   @param instance_group_manager [::String]
              #     The name of the managed instance group.
              #   @param instance_group_managers_set_instance_template_request_resource [::Google::Cloud::Compute::V1::InstanceGroupManagersSetInstanceTemplateRequest, ::Hash]
              #     The body resource for this request
              #   @param project [::String]
              #     Project ID for this request.
              #   @param request_id [::String]
              #     An optional request ID to identify requests. Specify a unique request ID so that if you must retry your request, the server will know to ignore the request if it has already been completed. 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 zone [::String]
              #     The name of the zone where the managed instance group is located.
              # @yield [result, operation] Access the result along with the TransportOperation object
              # @yieldparam result [::Gapic::GenericLRO::Operation]
              # @yieldparam operation [::Gapic::Rest::TransportOperation]
              #
              # @return [::Gapic::GenericLRO::Operation]
              #
              # @raise [::Google::Cloud::Error] if the REST call is aborted.
              #
              # @example Basic example
              #   require "google/cloud/compute/v1"
              #
              #   # Create a client object. The client can be reused for multiple calls.
              #   client = Google::Cloud::Compute::V1::InstanceGroupManagers::Rest::Client.new
              #
              #   # Create a request. To set request fields, pass in keyword arguments.
              #   request = Google::Cloud::Compute::V1::SetInstanceTemplateInstanceGroupManagerRequest.new
              #
              #   # Call the set_instance_template method.
              #   result = client.set_instance_template request
              #
              #   # The returned object is of type Google::Cloud::Compute::V1::Operation.
              #   p result
              #
              def set_instance_template request, options = nil
                raise ::ArgumentError, "request must be provided" if request.nil?

                request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::Compute::V1::SetInstanceTemplateInstanceGroupManagerRequest

                # 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
                call_metadata = @config.rpcs.set_instance_template.metadata.to_h

                # Set x-goog-api-client, x-goog-user-project and x-goog-api-version headers
                call_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::Compute::V1::VERSION,
                  transports_version_send: [:rest]

                call_metadata[:"x-goog-api-version"] = API_VERSION unless API_VERSION.empty?
                call_metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

                options.apply_defaults timeout:      @config.rpcs.set_instance_template.timeout,
                                       metadata:     call_metadata,
                                       retry_policy: @config.rpcs.set_instance_template.retry_policy

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

                @instance_group_managers_stub.set_instance_template request, options do |result, response|
                  result = ::Google::Cloud::Compute::V1::ZoneOperations::Rest::NonstandardLro.create_operation(
                    operation: result,
                    client: zone_operations,
                    request_values: {
                      "project" => request.project,
                      "zone" => request.zone
                    },
                    options: options
                  )
                  yield result, response if block_given?
                  throw :response, result
                end
              rescue ::Gapic::Rest::Error => e
                raise ::Google::Cloud::Error.from_error(e)
              end

              ##
              # Modifies the target pools to which all instances in this managed instance group are assigned. The target pools automatically apply to all of the instances in the managed instance group. This operation is marked DONE when you make the request even if the instances have not yet been added to their target pools. The change might take some time to apply to all of the instances in the group depending on the size of the group.
              #
              # @overload set_target_pools(request, options = nil)
              #   Pass arguments to `set_target_pools` via a request object, either of type
              #   {::Google::Cloud::Compute::V1::SetTargetPoolsInstanceGroupManagerRequest} or an equivalent Hash.
              #
              #   @param request [::Google::Cloud::Compute::V1::SetTargetPoolsInstanceGroupManagerRequest, ::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_target_pools(instance_group_manager: nil, instance_group_managers_set_target_pools_request_resource: nil, project: nil, request_id: nil, zone: nil)
              #   Pass arguments to `set_target_pools` via keyword arguments. Note that at
              #   least one keyword argument is required. To specify no parameters, or to keep all
              #   the default parameter values, pass an empty Hash as a request object (see above).
              #
              #   @param instance_group_manager [::String]
              #     The name of the managed instance group.
              #   @param instance_group_managers_set_target_pools_request_resource [::Google::Cloud::Compute::V1::InstanceGroupManagersSetTargetPoolsRequest, ::Hash]
              #     The body resource for this request
              #   @param project [::String]
              #     Project ID for this request.
              #   @param request_id [::String]
              #     An optional request ID to identify requests. Specify a unique request ID so that if you must retry your request, the server will know to ignore the request if it has already been completed. 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 zone [::String]
              #     The name of the zone where the managed instance group is located.
              # @yield [result, operation] Access the result along with the TransportOperation object
              # @yieldparam result [::Gapic::GenericLRO::Operation]
              # @yieldparam operation [::Gapic::Rest::TransportOperation]
              #
              # @return [::Gapic::GenericLRO::Operation]
              #
              # @raise [::Google::Cloud::Error] if the REST call is aborted.
              #
              # @example Basic example
              #   require "google/cloud/compute/v1"
              #
              #   # Create a client object. The client can be reused for multiple calls.
              #   client = Google::Cloud::Compute::V1::InstanceGroupManagers::Rest::Client.new
              #
              #   # Create a request. To set request fields, pass in keyword arguments.
              #   request = Google::Cloud::Compute::V1::SetTargetPoolsInstanceGroupManagerRequest.new
              #
              #   # Call the set_target_pools method.
              #   result = client.set_target_pools request
              #
              #   # The returned object is of type Google::Cloud::Compute::V1::Operation.
              #   p result
              #
              def set_target_pools request, options = nil
                raise ::ArgumentError, "request must be provided" if request.nil?

                request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::Compute::V1::SetTargetPoolsInstanceGroupManagerRequest

                # 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
                call_metadata = @config.rpcs.set_target_pools.metadata.to_h

                # Set x-goog-api-client, x-goog-user-project and x-goog-api-version headers
                call_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::Compute::V1::VERSION,
                  transports_version_send: [:rest]

                call_metadata[:"x-goog-api-version"] = API_VERSION unless API_VERSION.empty?
                call_metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

                options.apply_defaults timeout:      @config.rpcs.set_target_pools.timeout,
                                       metadata:     call_metadata,
                                       retry_policy: @config.rpcs.set_target_pools.retry_policy

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

                @instance_group_managers_stub.set_target_pools request, options do |result, response|
                  result = ::Google::Cloud::Compute::V1::ZoneOperations::Rest::NonstandardLro.create_operation(
                    operation: result,
                    client: zone_operations,
                    request_values: {
                      "project" => request.project,
                      "zone" => request.zone
                    },
                    options: options
                  )
                  yield result, response if block_given?
                  throw :response, result
                end
              rescue ::Gapic::Rest::Error => e
                raise ::Google::Cloud::Error.from_error(e)
              end

              ##
              # Flags the specified instances in the managed instance group to be started. This method increases the targetSize and decreases the targetStoppedSize of the managed instance group by the number of instances that you start. The startInstances operation is marked DONE if the startInstances request is successful. The underlying actions take additional time. You must separately verify the status of the STARTING action with the listmanagedinstances method. In this request, you can only specify instances that are stopped. For example, if an instance was previously stopped using the stopInstances method, it can be started using the startInstances method. If a health check is attached to the managed instance group, the specified instances will be verified as healthy after they are started. You can specify a maximum of 1000 instances with this method per request.
              #
              # @overload start_instances(request, options = nil)
              #   Pass arguments to `start_instances` via a request object, either of type
              #   {::Google::Cloud::Compute::V1::StartInstancesInstanceGroupManagerRequest} or an equivalent Hash.
              #
              #   @param request [::Google::Cloud::Compute::V1::StartInstancesInstanceGroupManagerRequest, ::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 start_instances(instance_group_manager: nil, instance_group_managers_start_instances_request_resource: nil, project: nil, request_id: nil, zone: nil)
              #   Pass arguments to `start_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 instance_group_manager [::String]
              #     The name of the managed instance group.
              #   @param instance_group_managers_start_instances_request_resource [::Google::Cloud::Compute::V1::InstanceGroupManagersStartInstancesRequest, ::Hash]
              #     The body resource for this request
              #   @param project [::String]
              #     Project ID for this request.
              #   @param request_id [::String]
              #     An optional request ID to identify requests. Specify a unique request ID so that if you must retry your request, the server will know to ignore the request if it has already been completed. 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 zone [::String]
              #     The name of the zone where the managed instance group is located.
              # @yield [result, operation] Access the result along with the TransportOperation object
              # @yieldparam result [::Gapic::GenericLRO::Operation]
              # @yieldparam operation [::Gapic::Rest::TransportOperation]
              #
              # @return [::Gapic::GenericLRO::Operation]
              #
              # @raise [::Google::Cloud::Error] if the REST call is aborted.
              #
              # @example Basic example
              #   require "google/cloud/compute/v1"
              #
              #   # Create a client object. The client can be reused for multiple calls.
              #   client = Google::Cloud::Compute::V1::InstanceGroupManagers::Rest::Client.new
              #
              #   # Create a request. To set request fields, pass in keyword arguments.
              #   request = Google::Cloud::Compute::V1::StartInstancesInstanceGroupManagerRequest.new
              #
              #   # Call the start_instances method.
              #   result = client.start_instances request
              #
              #   # The returned object is of type Google::Cloud::Compute::V1::Operation.
              #   p result
              #
              def start_instances request, options = nil
                raise ::ArgumentError, "request must be provided" if request.nil?

                request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::Compute::V1::StartInstancesInstanceGroupManagerRequest

                # 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
                call_metadata = @config.rpcs.start_instances.metadata.to_h

                # Set x-goog-api-client, x-goog-user-project and x-goog-api-version headers
                call_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::Compute::V1::VERSION,
                  transports_version_send: [:rest]

                call_metadata[:"x-goog-api-version"] = API_VERSION unless API_VERSION.empty?
                call_metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

                options.apply_defaults timeout:      @config.rpcs.start_instances.timeout,
                                       metadata:     call_metadata,
                                       retry_policy: @config.rpcs.start_instances.retry_policy

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

                @instance_group_managers_stub.start_instances request, options do |result, response|
                  result = ::Google::Cloud::Compute::V1::ZoneOperations::Rest::NonstandardLro.create_operation(
                    operation: result,
                    client: zone_operations,
                    request_values: {
                      "project" => request.project,
                      "zone" => request.zone
                    },
                    options: options
                  )
                  yield result, response if block_given?
                  throw :response, result
                end
              rescue ::Gapic::Rest::Error => e
                raise ::Google::Cloud::Error.from_error(e)
              end

              ##
              # Flags the specified instances in the managed instance group to be immediately stopped. You can only specify instances that are running in this request. This method reduces the targetSize and increases the targetStoppedSize of the managed instance group by the number of instances that you stop. The stopInstances operation is marked DONE if the stopInstances request is successful. The underlying actions take additional time. You must separately verify the status of the STOPPING action with the listmanagedinstances method. If the standbyPolicy.initialDelaySec field is set, the group delays stopping the instances until initialDelaySec have passed from instance.creationTimestamp (that is, when the instance was created). This delay gives your application time to set itself up and initialize on the instance. If more than initialDelaySec seconds have passed since instance.creationTimestamp when this method is called, there will be zero delay. If the group is part of a backend service that has enabled connection draining, it can take up to 60 seconds after the connection draining duration has elapsed before the VM instance is stopped. Stopped instances can be started using the startInstances method. You can specify a maximum of 1000 instances with this method per request.
              #
              # @overload stop_instances(request, options = nil)
              #   Pass arguments to `stop_instances` via a request object, either of type
              #   {::Google::Cloud::Compute::V1::StopInstancesInstanceGroupManagerRequest} or an equivalent Hash.
              #
              #   @param request [::Google::Cloud::Compute::V1::StopInstancesInstanceGroupManagerRequest, ::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 stop_instances(instance_group_manager: nil, instance_group_managers_stop_instances_request_resource: nil, project: nil, request_id: nil, zone: nil)
              #   Pass arguments to `stop_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 instance_group_manager [::String]
              #     The name of the managed instance group.
              #   @param instance_group_managers_stop_instances_request_resource [::Google::Cloud::Compute::V1::InstanceGroupManagersStopInstancesRequest, ::Hash]
              #     The body resource for this request
              #   @param project [::String]
              #     Project ID for this request.
              #   @param request_id [::String]
              #     An optional request ID to identify requests. Specify a unique request ID so that if you must retry your request, the server will know to ignore the request if it has already been completed. 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 zone [::String]
              #     The name of the zone where the managed instance group is located.
              # @yield [result, operation] Access the result along with the TransportOperation object
              # @yieldparam result [::Gapic::GenericLRO::Operation]
              # @yieldparam operation [::Gapic::Rest::TransportOperation]
              #
              # @return [::Gapic::GenericLRO::Operation]
              #
              # @raise [::Google::Cloud::Error] if the REST call is aborted.
              #
              # @example Basic example
              #   require "google/cloud/compute/v1"
              #
              #   # Create a client object. The client can be reused for multiple calls.
              #   client = Google::Cloud::Compute::V1::InstanceGroupManagers::Rest::Client.new
              #
              #   # Create a request. To set request fields, pass in keyword arguments.
              #   request = Google::Cloud::Compute::V1::StopInstancesInstanceGroupManagerRequest.new
              #
              #   # Call the stop_instances method.
              #   result = client.stop_instances request
              #
              #   # The returned object is of type Google::Cloud::Compute::V1::Operation.
              #   p result
              #
              def stop_instances request, options = nil
                raise ::ArgumentError, "request must be provided" if request.nil?

                request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::Compute::V1::StopInstancesInstanceGroupManagerRequest

                # 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
                call_metadata = @config.rpcs.stop_instances.metadata.to_h

                # Set x-goog-api-client, x-goog-user-project and x-goog-api-version headers
                call_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::Compute::V1::VERSION,
                  transports_version_send: [:rest]

                call_metadata[:"x-goog-api-version"] = API_VERSION unless API_VERSION.empty?
                call_metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

                options.apply_defaults timeout:      @config.rpcs.stop_instances.timeout,
                                       metadata:     call_metadata,
                                       retry_policy: @config.rpcs.stop_instances.retry_policy

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

                @instance_group_managers_stub.stop_instances request, options do |result, response|
                  result = ::Google::Cloud::Compute::V1::ZoneOperations::Rest::NonstandardLro.create_operation(
                    operation: result,
                    client: zone_operations,
                    request_values: {
                      "project" => request.project,
                      "zone" => request.zone
                    },
                    options: options
                  )
                  yield result, response if block_given?
                  throw :response, result
                end
              rescue ::Gapic::Rest::Error => e
                raise ::Google::Cloud::Error.from_error(e)
              end

              ##
              # Flags the specified instances in the managed instance group to be immediately suspended. You can only specify instances that are running in this request. This method reduces the targetSize and increases the targetSuspendedSize of the managed instance group by the number of instances that you suspend. The suspendInstances operation is marked DONE if the suspendInstances request is successful. The underlying actions take additional time. You must separately verify the status of the SUSPENDING action with the listmanagedinstances method. If the standbyPolicy.initialDelaySec field is set, the group delays suspension of the instances until initialDelaySec have passed from instance.creationTimestamp (that is, when the instance was created). This delay gives your application time to set itself up and initialize on the instance. If more than initialDelaySec seconds have passed since instance.creationTimestamp when this method is called, there will be zero delay. If the group is part of a backend service that has enabled connection draining, it can take up to 60 seconds after the connection draining duration has elapsed before the VM instance is suspended. Suspended instances can be resumed using the resumeInstances method. You can specify a maximum of 1000 instances with this method per request.
              #
              # @overload suspend_instances(request, options = nil)
              #   Pass arguments to `suspend_instances` via a request object, either of type
              #   {::Google::Cloud::Compute::V1::SuspendInstancesInstanceGroupManagerRequest} or an equivalent Hash.
              #
              #   @param request [::Google::Cloud::Compute::V1::SuspendInstancesInstanceGroupManagerRequest, ::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 suspend_instances(instance_group_manager: nil, instance_group_managers_suspend_instances_request_resource: nil, project: nil, request_id: nil, zone: nil)
              #   Pass arguments to `suspend_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 instance_group_manager [::String]
              #     The name of the managed instance group.
              #   @param instance_group_managers_suspend_instances_request_resource [::Google::Cloud::Compute::V1::InstanceGroupManagersSuspendInstancesRequest, ::Hash]
              #     The body resource for this request
              #   @param project [::String]
              #     Project ID for this request.
              #   @param request_id [::String]
              #     An optional request ID to identify requests. Specify a unique request ID so that if you must retry your request, the server will know to ignore the request if it has already been completed. 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 zone [::String]
              #     The name of the zone where the managed instance group is located.
              # @yield [result, operation] Access the result along with the TransportOperation object
              # @yieldparam result [::Gapic::GenericLRO::Operation]
              # @yieldparam operation [::Gapic::Rest::TransportOperation]
              #
              # @return [::Gapic::GenericLRO::Operation]
              #
              # @raise [::Google::Cloud::Error] if the REST call is aborted.
              #
              # @example Basic example
              #   require "google/cloud/compute/v1"
              #
              #   # Create a client object. The client can be reused for multiple calls.
              #   client = Google::Cloud::Compute::V1::InstanceGroupManagers::Rest::Client.new
              #
              #   # Create a request. To set request fields, pass in keyword arguments.
              #   request = Google::Cloud::Compute::V1::SuspendInstancesInstanceGroupManagerRequest.new
              #
              #   # Call the suspend_instances method.
              #   result = client.suspend_instances request
              #
              #   # The returned object is of type Google::Cloud::Compute::V1::Operation.
              #   p result
              #
              def suspend_instances request, options = nil
                raise ::ArgumentError, "request must be provided" if request.nil?

                request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::Compute::V1::SuspendInstancesInstanceGroupManagerRequest

                # 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
                call_metadata = @config.rpcs.suspend_instances.metadata.to_h

                # Set x-goog-api-client, x-goog-user-project and x-goog-api-version headers
                call_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::Compute::V1::VERSION,
                  transports_version_send: [:rest]

                call_metadata[:"x-goog-api-version"] = API_VERSION unless API_VERSION.empty?
                call_metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

                options.apply_defaults timeout:      @config.rpcs.suspend_instances.timeout,
                                       metadata:     call_metadata,
                                       retry_policy: @config.rpcs.suspend_instances.retry_policy

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

                @instance_group_managers_stub.suspend_instances request, options do |result, response|
                  result = ::Google::Cloud::Compute::V1::ZoneOperations::Rest::NonstandardLro.create_operation(
                    operation: result,
                    client: zone_operations,
                    request_values: {
                      "project" => request.project,
                      "zone" => request.zone
                    },
                    options: options
                  )
                  yield result, response if block_given?
                  throw :response, result
                end
              rescue ::Gapic::Rest::Error => e
                raise ::Google::Cloud::Error.from_error(e)
              end

              ##
              # Inserts or updates per-instance configurations for the managed instance group. perInstanceConfig.name serves as a key used to distinguish whether to perform insert or patch.
              #
              # @overload update_per_instance_configs(request, options = nil)
              #   Pass arguments to `update_per_instance_configs` via a request object, either of type
              #   {::Google::Cloud::Compute::V1::UpdatePerInstanceConfigsInstanceGroupManagerRequest} or an equivalent Hash.
              #
              #   @param request [::Google::Cloud::Compute::V1::UpdatePerInstanceConfigsInstanceGroupManagerRequest, ::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_per_instance_configs(instance_group_manager: nil, instance_group_managers_update_per_instance_configs_req_resource: nil, project: nil, request_id: nil, zone: nil)
              #   Pass arguments to `update_per_instance_configs` via keyword arguments. Note that at
              #   least one keyword argument is required. To specify no parameters, or to keep all
              #   the default parameter values, pass an empty Hash as a request object (see above).
              #
              #   @param instance_group_manager [::String]
              #     The name of the managed instance group. It should conform to RFC1035.
              #   @param instance_group_managers_update_per_instance_configs_req_resource [::Google::Cloud::Compute::V1::InstanceGroupManagersUpdatePerInstanceConfigsReq, ::Hash]
              #     The body resource for this request
              #   @param project [::String]
              #     Project ID for this request.
              #   @param request_id [::String]
              #     An optional request ID to identify requests. Specify a unique request ID so that if you must retry your request, the server will know to ignore the request if it has already been completed. 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 zone [::String]
              #     The name of the zone where the managed instance group is located. It should conform to RFC1035.
              # @yield [result, operation] Access the result along with the TransportOperation object
              # @yieldparam result [::Gapic::GenericLRO::Operation]
              # @yieldparam operation [::Gapic::Rest::TransportOperation]
              #
              # @return [::Gapic::GenericLRO::Operation]
              #
              # @raise [::Google::Cloud::Error] if the REST call is aborted.
              #
              # @example Basic example
              #   require "google/cloud/compute/v1"
              #
              #   # Create a client object. The client can be reused for multiple calls.
              #   client = Google::Cloud::Compute::V1::InstanceGroupManagers::Rest::Client.new
              #
              #   # Create a request. To set request fields, pass in keyword arguments.
              #   request = Google::Cloud::Compute::V1::UpdatePerInstanceConfigsInstanceGroupManagerRequest.new
              #
              #   # Call the update_per_instance_configs method.
              #   result = client.update_per_instance_configs request
              #
              #   # The returned object is of type Google::Cloud::Compute::V1::Operation.
              #   p result
              #
              def update_per_instance_configs request, options = nil
                raise ::ArgumentError, "request must be provided" if request.nil?

                request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::Compute::V1::UpdatePerInstanceConfigsInstanceGroupManagerRequest

                # 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
                call_metadata = @config.rpcs.update_per_instance_configs.metadata.to_h

                # Set x-goog-api-client, x-goog-user-project and x-goog-api-version headers
                call_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::Compute::V1::VERSION,
                  transports_version_send: [:rest]

                call_metadata[:"x-goog-api-version"] = API_VERSION unless API_VERSION.empty?
                call_metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

                options.apply_defaults timeout:      @config.rpcs.update_per_instance_configs.timeout,
                                       metadata:     call_metadata,
                                       retry_policy: @config.rpcs.update_per_instance_configs.retry_policy

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

                @instance_group_managers_stub.update_per_instance_configs request, options do |result, response|
                  result = ::Google::Cloud::Compute::V1::ZoneOperations::Rest::NonstandardLro.create_operation(
                    operation: result,
                    client: zone_operations,
                    request_values: {
                      "project" => request.project,
                      "zone" => request.zone
                    },
                    options: options
                  )
                  yield result, response if block_given?
                  throw :response, result
                end
              rescue ::Gapic::Rest::Error => e
                raise ::Google::Cloud::Error.from_error(e)
              end

              ##
              # Configuration class for the InstanceGroupManagers REST API.
              #
              # This class represents the configuration for InstanceGroupManagers REST,
              # 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::Compute::V1::InstanceGroupManagers::Rest::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
              #   # abandon_instances to 20 seconds,
              #   # and all remaining timeouts to 10 seconds.
              #   ::Google::Cloud::Compute::V1::InstanceGroupManagers::Rest::Client.configure do |config|
              #     config.timeout = 10.0
              #     config.rpcs.abandon_instances.timeout = 20.0
              #   end
              #
              #   # Apply the above configuration only to a new client.
              #   client = ::Google::Cloud::Compute::V1::InstanceGroupManagers::Rest::Client.new do |config|
              #     config.timeout = 10.0
              #     config.rpcs.abandon_instances.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))
              #    *  (`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] timeout
              #   The call timeout in seconds.
              #   @return [::Numeric]
              # @!attribute [rw] metadata
              #   Additional 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 = "compute.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.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 :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 RPC class for the InstanceGroupManagers 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 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 `abandon_instances`
                  # @return [::Gapic::Config::Method]
                  #
                  attr_reader :abandon_instances
                  ##
                  # RPC-specific configuration for `aggregated_list`
                  # @return [::Gapic::Config::Method]
                  #
                  attr_reader :aggregated_list
                  ##
                  # RPC-specific configuration for `apply_updates_to_instances`
                  # @return [::Gapic::Config::Method]
                  #
                  attr_reader :apply_updates_to_instances
                  ##
                  # RPC-specific configuration for `create_instances`
                  # @return [::Gapic::Config::Method]
                  #
                  attr_reader :create_instances
                  ##
                  # RPC-specific configuration for `delete`
                  # @return [::Gapic::Config::Method]
                  #
                  attr_reader :delete
                  ##
                  # RPC-specific configuration for `delete_instances`
                  # @return [::Gapic::Config::Method]
                  #
                  attr_reader :delete_instances
                  ##
                  # RPC-specific configuration for `delete_per_instance_configs`
                  # @return [::Gapic::Config::Method]
                  #
                  attr_reader :delete_per_instance_configs
                  ##
                  # RPC-specific configuration for `get`
                  # @return [::Gapic::Config::Method]
                  #
                  attr_reader :get
                  ##
                  # RPC-specific configuration for `insert`
                  # @return [::Gapic::Config::Method]
                  #
                  attr_reader :insert
                  ##
                  # RPC-specific configuration for `list`
                  # @return [::Gapic::Config::Method]
                  #
                  attr_reader :list
                  ##
                  # RPC-specific configuration for `list_errors`
                  # @return [::Gapic::Config::Method]
                  #
                  attr_reader :list_errors
                  ##
                  # RPC-specific configuration for `list_managed_instances`
                  # @return [::Gapic::Config::Method]
                  #
                  attr_reader :list_managed_instances
                  ##
                  # RPC-specific configuration for `list_per_instance_configs`
                  # @return [::Gapic::Config::Method]
                  #
                  attr_reader :list_per_instance_configs
                  ##
                  # RPC-specific configuration for `patch`
                  # @return [::Gapic::Config::Method]
                  #
                  attr_reader :patch
                  ##
                  # RPC-specific configuration for `patch_per_instance_configs`
                  # @return [::Gapic::Config::Method]
                  #
                  attr_reader :patch_per_instance_configs
                  ##
                  # RPC-specific configuration for `recreate_instances`
                  # @return [::Gapic::Config::Method]
                  #
                  attr_reader :recreate_instances
                  ##
                  # RPC-specific configuration for `resize`
                  # @return [::Gapic::Config::Method]
                  #
                  attr_reader :resize
                  ##
                  # RPC-specific configuration for `resume_instances`
                  # @return [::Gapic::Config::Method]
                  #
                  attr_reader :resume_instances
                  ##
                  # RPC-specific configuration for `set_instance_template`
                  # @return [::Gapic::Config::Method]
                  #
                  attr_reader :set_instance_template
                  ##
                  # RPC-specific configuration for `set_target_pools`
                  # @return [::Gapic::Config::Method]
                  #
                  attr_reader :set_target_pools
                  ##
                  # RPC-specific configuration for `start_instances`
                  # @return [::Gapic::Config::Method]
                  #
                  attr_reader :start_instances
                  ##
                  # RPC-specific configuration for `stop_instances`
                  # @return [::Gapic::Config::Method]
                  #
                  attr_reader :stop_instances
                  ##
                  # RPC-specific configuration for `suspend_instances`
                  # @return [::Gapic::Config::Method]
                  #
                  attr_reader :suspend_instances
                  ##
                  # RPC-specific configuration for `update_per_instance_configs`
                  # @return [::Gapic::Config::Method]
                  #
                  attr_reader :update_per_instance_configs

                  # @private
                  def initialize parent_rpcs = nil
                    abandon_instances_config = parent_rpcs.abandon_instances if parent_rpcs.respond_to? :abandon_instances
                    @abandon_instances = ::Gapic::Config::Method.new abandon_instances_config
                    aggregated_list_config = parent_rpcs.aggregated_list if parent_rpcs.respond_to? :aggregated_list
                    @aggregated_list = ::Gapic::Config::Method.new aggregated_list_config
                    apply_updates_to_instances_config = parent_rpcs.apply_updates_to_instances if parent_rpcs.respond_to? :apply_updates_to_instances
                    @apply_updates_to_instances = ::Gapic::Config::Method.new apply_updates_to_instances_config
                    create_instances_config = parent_rpcs.create_instances if parent_rpcs.respond_to? :create_instances
                    @create_instances = ::Gapic::Config::Method.new create_instances_config
                    delete_config = parent_rpcs.delete if parent_rpcs.respond_to? :delete
                    @delete = ::Gapic::Config::Method.new delete_config
                    delete_instances_config = parent_rpcs.delete_instances if parent_rpcs.respond_to? :delete_instances
                    @delete_instances = ::Gapic::Config::Method.new delete_instances_config
                    delete_per_instance_configs_config = parent_rpcs.delete_per_instance_configs if parent_rpcs.respond_to? :delete_per_instance_configs
                    @delete_per_instance_configs = ::Gapic::Config::Method.new delete_per_instance_configs_config
                    get_config = parent_rpcs.get if parent_rpcs.respond_to? :get
                    @get = ::Gapic::Config::Method.new get_config
                    insert_config = parent_rpcs.insert if parent_rpcs.respond_to? :insert
                    @insert = ::Gapic::Config::Method.new insert_config
                    list_config = parent_rpcs.list if parent_rpcs.respond_to? :list
                    @list = ::Gapic::Config::Method.new list_config
                    list_errors_config = parent_rpcs.list_errors if parent_rpcs.respond_to? :list_errors
                    @list_errors = ::Gapic::Config::Method.new list_errors_config
                    list_managed_instances_config = parent_rpcs.list_managed_instances if parent_rpcs.respond_to? :list_managed_instances
                    @list_managed_instances = ::Gapic::Config::Method.new list_managed_instances_config
                    list_per_instance_configs_config = parent_rpcs.list_per_instance_configs if parent_rpcs.respond_to? :list_per_instance_configs
                    @list_per_instance_configs = ::Gapic::Config::Method.new list_per_instance_configs_config
                    patch_config = parent_rpcs.patch if parent_rpcs.respond_to? :patch
                    @patch = ::Gapic::Config::Method.new patch_config
                    patch_per_instance_configs_config = parent_rpcs.patch_per_instance_configs if parent_rpcs.respond_to? :patch_per_instance_configs
                    @patch_per_instance_configs = ::Gapic::Config::Method.new patch_per_instance_configs_config
                    recreate_instances_config = parent_rpcs.recreate_instances if parent_rpcs.respond_to? :recreate_instances
                    @recreate_instances = ::Gapic::Config::Method.new recreate_instances_config
                    resize_config = parent_rpcs.resize if parent_rpcs.respond_to? :resize
                    @resize = ::Gapic::Config::Method.new resize_config
                    resume_instances_config = parent_rpcs.resume_instances if parent_rpcs.respond_to? :resume_instances
                    @resume_instances = ::Gapic::Config::Method.new resume_instances_config
                    set_instance_template_config = parent_rpcs.set_instance_template if parent_rpcs.respond_to? :set_instance_template
                    @set_instance_template = ::Gapic::Config::Method.new set_instance_template_config
                    set_target_pools_config = parent_rpcs.set_target_pools if parent_rpcs.respond_to? :set_target_pools
                    @set_target_pools = ::Gapic::Config::Method.new set_target_pools_config
                    start_instances_config = parent_rpcs.start_instances if parent_rpcs.respond_to? :start_instances
                    @start_instances = ::Gapic::Config::Method.new start_instances_config
                    stop_instances_config = parent_rpcs.stop_instances if parent_rpcs.respond_to? :stop_instances
                    @stop_instances = ::Gapic::Config::Method.new stop_instances_config
                    suspend_instances_config = parent_rpcs.suspend_instances if parent_rpcs.respond_to? :suspend_instances
                    @suspend_instances = ::Gapic::Config::Method.new suspend_instances_config
                    update_per_instance_configs_config = parent_rpcs.update_per_instance_configs if parent_rpcs.respond_to? :update_per_instance_configs
                    @update_per_instance_configs = ::Gapic::Config::Method.new update_per_instance_configs_config

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