# frozen_string_literal: true

# Copyright 2023 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

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

require "google/cloud/errors"
require "google/firestore/admin/v1/firestore_admin_pb"
require "google/cloud/firestore/admin/v1/firestore_admin/rest/service_stub"
require "google/cloud/location/rest"

module Google
  module Cloud
    module Firestore
      module Admin
        module V1
          module FirestoreAdmin
            module Rest
              ##
              # REST client for the FirestoreAdmin service.
              #
              # The Cloud Firestore Admin API.
              #
              # This API provides several administrative services for Cloud Firestore.
              #
              # Project, Database, Namespace, Collection, Collection Group, and Document are
              # used as defined in the Google Cloud Firestore API.
              #
              # Operation: An Operation represents work being performed in the background.
              #
              # The index service manages Cloud Firestore indexes.
              #
              # Index creation is performed asynchronously.
              # An Operation resource is created for each such asynchronous operation.
              # The state of the operation (including any errors encountered)
              # may be queried via the Operation resource.
              #
              # The Operations collection provides a record of actions performed for the
              # specified Project (including any Operations in progress). Operations are not
              # created directly but through calls on other collections or resources.
              #
              # An Operation that is done may be deleted so that it is no longer listed as
              # part of the Operation collection. Operations are garbage collected after
              # 30 days. By default, ListOperations will only return in progress and failed
              # operations. To list completed operation, issue a ListOperations request with
              # the filter `done: true`.
              #
              # Operations are created by service `FirestoreAdmin`, but are accessed via
              # service `google.longrunning.Operations`.
              #
              class Client
                include Paths

                # @private
                attr_reader :firestore_admin_stub

                ##
                # Configure the FirestoreAdmin Client class.
                #
                # See {::Google::Cloud::Firestore::Admin::V1::FirestoreAdmin::Rest::Client::Configuration}
                # for a description of the configuration fields.
                #
                # @example
                #
                #   # Modify the configuration for all FirestoreAdmin clients
                #   ::Google::Cloud::Firestore::Admin::V1::FirestoreAdmin::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", "Firestore", "Admin", "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.create_index.timeout = 60.0

                    default_config.rpcs.list_indexes.timeout = 60.0
                    default_config.rpcs.list_indexes.retry_policy = {
                      initial_delay: 0.1, max_delay: 60.0, multiplier: 1.3, retry_codes: [14, 13, 4]
                    }

                    default_config.rpcs.get_index.timeout = 60.0
                    default_config.rpcs.get_index.retry_policy = {
                      initial_delay: 0.1, max_delay: 60.0, multiplier: 1.3, retry_codes: [14, 13, 4]
                    }

                    default_config.rpcs.delete_index.timeout = 60.0
                    default_config.rpcs.delete_index.retry_policy = {
                      initial_delay: 0.1, max_delay: 60.0, multiplier: 1.3, retry_codes: [14, 13, 4]
                    }

                    default_config.rpcs.get_field.timeout = 60.0
                    default_config.rpcs.get_field.retry_policy = {
                      initial_delay: 0.1, max_delay: 60.0, multiplier: 1.3, retry_codes: [14, 13, 4]
                    }

                    default_config.rpcs.update_field.timeout = 60.0

                    default_config.rpcs.list_fields.timeout = 60.0
                    default_config.rpcs.list_fields.retry_policy = {
                      initial_delay: 0.1, max_delay: 60.0, multiplier: 1.3, retry_codes: [14, 13, 4]
                    }

                    default_config.rpcs.export_documents.timeout = 60.0

                    default_config.rpcs.import_documents.timeout = 60.0

                    default_config
                  end
                  yield @configure if block_given?
                  @configure
                end

                ##
                # Configure the FirestoreAdmin 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::Firestore::Admin::V1::FirestoreAdmin::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

                ##
                # Create a new FirestoreAdmin REST client object.
                #
                # @example
                #
                #   # Create a client using the default configuration
                #   client = ::Google::Cloud::Firestore::Admin::V1::FirestoreAdmin::Rest::Client.new
                #
                #   # Create a client using a custom configuration
                #   client = ::Google::Cloud::Firestore::Admin::V1::FirestoreAdmin::Rest::Client.new do |config|
                #     config.timeout = 10.0
                #   end
                #
                # @yield [config] Configure the FirestoreAdmin 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 == Client.configure.endpoint &&
                                           !@config.endpoint.split(".").first.include?("-")
                  credentials ||= Credentials.default scope: @config.scope,
                                                      enable_self_signed_jwt: enable_self_signed_jwt
                  if credentials.is_a?(::String) || credentials.is_a?(::Hash)
                    credentials = Credentials.new credentials, scope: @config.scope
                  end

                  @quota_project_id = @config.quota_project
                  @quota_project_id ||= credentials.quota_project_id if credentials.respond_to? :quota_project_id

                  @operations_client = ::Google::Cloud::Firestore::Admin::V1::FirestoreAdmin::Rest::Operations.new do |config|
                    config.credentials = credentials
                    config.quota_project = @quota_project_id
                    config.endpoint = @config.endpoint
                  end

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

                  @firestore_admin_stub = ::Google::Cloud::Firestore::Admin::V1::FirestoreAdmin::Rest::ServiceStub.new endpoint: @config.endpoint, credentials: credentials
                end

                ##
                # Get the associated client for long-running operations.
                #
                # @return [::Google::Cloud::Firestore::Admin::V1::FirestoreAdmin::Rest::Operations]
                #
                attr_reader :operations_client

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

                # Service calls

                ##
                # Creates a composite index. This returns a {::Google::Longrunning::Operation google.longrunning.Operation}
                # which may be used to track the status of the creation. The metadata for
                # the operation will be the type {::Google::Cloud::Firestore::Admin::V1::IndexOperationMetadata IndexOperationMetadata}.
                #
                # @overload create_index(request, options = nil)
                #   Pass arguments to `create_index` via a request object, either of type
                #   {::Google::Cloud::Firestore::Admin::V1::CreateIndexRequest} or an equivalent Hash.
                #
                #   @param request [::Google::Cloud::Firestore::Admin::V1::CreateIndexRequest, ::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_index(parent: nil, index: nil)
                #   Pass arguments to `create_index` via keyword arguments. Note that at
                #   least one keyword argument is required. To specify no parameters, or to keep all
                #   the default parameter values, pass an empty Hash as a request object (see above).
                #
                #   @param parent [::String]
                #     Required. A parent name of the form
                #     `projects/{project_id}/databases/{database_id}/collectionGroups/{collection_id}`
                #   @param index [::Google::Cloud::Firestore::Admin::V1::Index, ::Hash]
                #     Required. The composite index to create.
                # @yield [result, operation] Access the result along with the TransportOperation object
                # @yieldparam result [::Gapic::Operation]
                # @yieldparam operation [::Gapic::Rest::TransportOperation]
                #
                # @return [::Gapic::Operation]
                #
                # @raise [::Google::Cloud::Error] if the REST call is aborted.
                def create_index request, options = nil
                  raise ::ArgumentError, "request must be provided" if request.nil?

                  request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::Firestore::Admin::V1::CreateIndexRequest

                  # 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_index.metadata.to_h

                  # Set x-goog-api-client and x-goog-user-project 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::Firestore::Admin::V1::VERSION,
                    transports_version_send: [:rest]

                  call_metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

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

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

                  @firestore_admin_stub.create_index request, options do |result, operation|
                    result = ::Gapic::Operation.new result, @operations_client, options: options
                    yield result, operation if block_given?
                    return result
                  end
                rescue ::Gapic::Rest::Error => e
                  raise ::Google::Cloud::Error.from_error(e)
                end

                ##
                # Lists composite indexes.
                #
                # @overload list_indexes(request, options = nil)
                #   Pass arguments to `list_indexes` via a request object, either of type
                #   {::Google::Cloud::Firestore::Admin::V1::ListIndexesRequest} or an equivalent Hash.
                #
                #   @param request [::Google::Cloud::Firestore::Admin::V1::ListIndexesRequest, ::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_indexes(parent: nil, filter: nil, page_size: nil, page_token: nil)
                #   Pass arguments to `list_indexes` via keyword arguments. Note that at
                #   least one keyword argument is required. To specify no parameters, or to keep all
                #   the default parameter values, pass an empty Hash as a request object (see above).
                #
                #   @param parent [::String]
                #     Required. A parent name of the form
                #     `projects/{project_id}/databases/{database_id}/collectionGroups/{collection_id}`
                #   @param filter [::String]
                #     The filter to apply to list results.
                #   @param page_size [::Integer]
                #     The number of results to return.
                #   @param page_token [::String]
                #     A page token, returned from a previous call to
                #     {::Google::Cloud::Firestore::Admin::V1::FirestoreAdmin::Rest::Client#list_indexes FirestoreAdmin.ListIndexes}, that may be used to get the next
                #     page of results.
                # @yield [result, operation] Access the result along with the TransportOperation object
                # @yieldparam result [::Gapic::Rest::PagedEnumerable<::Google::Cloud::Firestore::Admin::V1::Index>]
                # @yieldparam operation [::Gapic::Rest::TransportOperation]
                #
                # @return [::Gapic::Rest::PagedEnumerable<::Google::Cloud::Firestore::Admin::V1::Index>]
                #
                # @raise [::Google::Cloud::Error] if the REST call is aborted.
                def list_indexes request, options = nil
                  raise ::ArgumentError, "request must be provided" if request.nil?

                  request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::Firestore::Admin::V1::ListIndexesRequest

                  # 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_indexes.metadata.to_h

                  # Set x-goog-api-client and x-goog-user-project 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::Firestore::Admin::V1::VERSION,
                    transports_version_send: [:rest]

                  call_metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

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

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

                  @firestore_admin_stub.list_indexes request, options do |result, operation|
                    result = ::Gapic::Rest::PagedEnumerable.new @firestore_admin_stub, :list_indexes, "indexes", request, result, options
                    yield result, operation if block_given?
                    return result
                  end
                rescue ::Gapic::Rest::Error => e
                  raise ::Google::Cloud::Error.from_error(e)
                end

                ##
                # Gets a composite index.
                #
                # @overload get_index(request, options = nil)
                #   Pass arguments to `get_index` via a request object, either of type
                #   {::Google::Cloud::Firestore::Admin::V1::GetIndexRequest} or an equivalent Hash.
                #
                #   @param request [::Google::Cloud::Firestore::Admin::V1::GetIndexRequest, ::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_index(name: nil)
                #   Pass arguments to `get_index` via keyword arguments. Note that at
                #   least one keyword argument is required. To specify no parameters, or to keep all
                #   the default parameter values, pass an empty Hash as a request object (see above).
                #
                #   @param name [::String]
                #     Required. A name of the form
                #     `projects/{project_id}/databases/{database_id}/collectionGroups/{collection_id}/indexes/{index_id}`
                # @yield [result, operation] Access the result along with the TransportOperation object
                # @yieldparam result [::Google::Cloud::Firestore::Admin::V1::Index]
                # @yieldparam operation [::Gapic::Rest::TransportOperation]
                #
                # @return [::Google::Cloud::Firestore::Admin::V1::Index]
                #
                # @raise [::Google::Cloud::Error] if the REST call is aborted.
                def get_index request, options = nil
                  raise ::ArgumentError, "request must be provided" if request.nil?

                  request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::Firestore::Admin::V1::GetIndexRequest

                  # 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_index.metadata.to_h

                  # Set x-goog-api-client and x-goog-user-project 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::Firestore::Admin::V1::VERSION,
                    transports_version_send: [:rest]

                  call_metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

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

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

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

                ##
                # Deletes a composite index.
                #
                # @overload delete_index(request, options = nil)
                #   Pass arguments to `delete_index` via a request object, either of type
                #   {::Google::Cloud::Firestore::Admin::V1::DeleteIndexRequest} or an equivalent Hash.
                #
                #   @param request [::Google::Cloud::Firestore::Admin::V1::DeleteIndexRequest, ::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_index(name: nil)
                #   Pass arguments to `delete_index` via keyword arguments. Note that at
                #   least one keyword argument is required. To specify no parameters, or to keep all
                #   the default parameter values, pass an empty Hash as a request object (see above).
                #
                #   @param name [::String]
                #     Required. A name of the form
                #     `projects/{project_id}/databases/{database_id}/collectionGroups/{collection_id}/indexes/{index_id}`
                # @yield [result, operation] Access the result along with the TransportOperation object
                # @yieldparam result [::Google::Protobuf::Empty]
                # @yieldparam operation [::Gapic::Rest::TransportOperation]
                #
                # @return [::Google::Protobuf::Empty]
                #
                # @raise [::Google::Cloud::Error] if the REST call is aborted.
                def delete_index request, options = nil
                  raise ::ArgumentError, "request must be provided" if request.nil?

                  request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::Firestore::Admin::V1::DeleteIndexRequest

                  # 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_index.metadata.to_h

                  # Set x-goog-api-client and x-goog-user-project 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::Firestore::Admin::V1::VERSION,
                    transports_version_send: [:rest]

                  call_metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

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

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

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

                ##
                # Gets the metadata and configuration for a Field.
                #
                # @overload get_field(request, options = nil)
                #   Pass arguments to `get_field` via a request object, either of type
                #   {::Google::Cloud::Firestore::Admin::V1::GetFieldRequest} or an equivalent Hash.
                #
                #   @param request [::Google::Cloud::Firestore::Admin::V1::GetFieldRequest, ::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_field(name: nil)
                #   Pass arguments to `get_field` via keyword arguments. Note that at
                #   least one keyword argument is required. To specify no parameters, or to keep all
                #   the default parameter values, pass an empty Hash as a request object (see above).
                #
                #   @param name [::String]
                #     Required. A name of the form
                #     `projects/{project_id}/databases/{database_id}/collectionGroups/{collection_id}/fields/{field_id}`
                # @yield [result, operation] Access the result along with the TransportOperation object
                # @yieldparam result [::Google::Cloud::Firestore::Admin::V1::Field]
                # @yieldparam operation [::Gapic::Rest::TransportOperation]
                #
                # @return [::Google::Cloud::Firestore::Admin::V1::Field]
                #
                # @raise [::Google::Cloud::Error] if the REST call is aborted.
                def get_field request, options = nil
                  raise ::ArgumentError, "request must be provided" if request.nil?

                  request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::Firestore::Admin::V1::GetFieldRequest

                  # 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_field.metadata.to_h

                  # Set x-goog-api-client and x-goog-user-project 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::Firestore::Admin::V1::VERSION,
                    transports_version_send: [:rest]

                  call_metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

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

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

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

                ##
                # Updates a field configuration. Currently, field updates apply only to
                # single field index configuration. However, calls to
                # {::Google::Cloud::Firestore::Admin::V1::FirestoreAdmin::Rest::Client#update_field FirestoreAdmin.UpdateField} should provide a field mask to avoid
                # changing any configuration that the caller isn't aware of. The field mask
                # should be specified as: `{ paths: "index_config" }`.
                #
                # This call returns a {::Google::Longrunning::Operation google.longrunning.Operation} which may be used to
                # track the status of the field update. The metadata for
                # the operation will be the type {::Google::Cloud::Firestore::Admin::V1::FieldOperationMetadata FieldOperationMetadata}.
                #
                # To configure the default field settings for the database, use
                # the special `Field` with resource name:
                # `projects/{project_id}/databases/{database_id}/collectionGroups/__default__/fields/*`.
                #
                # @overload update_field(request, options = nil)
                #   Pass arguments to `update_field` via a request object, either of type
                #   {::Google::Cloud::Firestore::Admin::V1::UpdateFieldRequest} or an equivalent Hash.
                #
                #   @param request [::Google::Cloud::Firestore::Admin::V1::UpdateFieldRequest, ::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_field(field: nil, update_mask: nil)
                #   Pass arguments to `update_field` 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 field [::Google::Cloud::Firestore::Admin::V1::Field, ::Hash]
                #     Required. The field to be updated.
                #   @param update_mask [::Google::Protobuf::FieldMask, ::Hash]
                #     A mask, relative to the field. If specified, only configuration specified
                #     by this field_mask will be updated in the field.
                # @yield [result, operation] Access the result along with the TransportOperation object
                # @yieldparam result [::Gapic::Operation]
                # @yieldparam operation [::Gapic::Rest::TransportOperation]
                #
                # @return [::Gapic::Operation]
                #
                # @raise [::Google::Cloud::Error] if the REST call is aborted.
                def update_field request, options = nil
                  raise ::ArgumentError, "request must be provided" if request.nil?

                  request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::Firestore::Admin::V1::UpdateFieldRequest

                  # 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_field.metadata.to_h

                  # Set x-goog-api-client and x-goog-user-project 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::Firestore::Admin::V1::VERSION,
                    transports_version_send: [:rest]

                  call_metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

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

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

                  @firestore_admin_stub.update_field request, options do |result, operation|
                    result = ::Gapic::Operation.new result, @operations_client, options: options
                    yield result, operation if block_given?
                    return result
                  end
                rescue ::Gapic::Rest::Error => e
                  raise ::Google::Cloud::Error.from_error(e)
                end

                ##
                # Lists the field configuration and metadata for this database.
                #
                # Currently, {::Google::Cloud::Firestore::Admin::V1::FirestoreAdmin::Rest::Client#list_fields FirestoreAdmin.ListFields} only supports listing fields
                # that have been explicitly overridden. To issue this query, call
                # {::Google::Cloud::Firestore::Admin::V1::FirestoreAdmin::Rest::Client#list_fields FirestoreAdmin.ListFields} with the filter set to
                # `indexConfig.usesAncestorConfig:false` .
                #
                # @overload list_fields(request, options = nil)
                #   Pass arguments to `list_fields` via a request object, either of type
                #   {::Google::Cloud::Firestore::Admin::V1::ListFieldsRequest} or an equivalent Hash.
                #
                #   @param request [::Google::Cloud::Firestore::Admin::V1::ListFieldsRequest, ::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_fields(parent: nil, filter: nil, page_size: nil, page_token: nil)
                #   Pass arguments to `list_fields` via keyword arguments. Note that at
                #   least one keyword argument is required. To specify no parameters, or to keep all
                #   the default parameter values, pass an empty Hash as a request object (see above).
                #
                #   @param parent [::String]
                #     Required. A parent name of the form
                #     `projects/{project_id}/databases/{database_id}/collectionGroups/{collection_id}`
                #   @param filter [::String]
                #     The filter to apply to list results. Currently,
                #     {::Google::Cloud::Firestore::Admin::V1::FirestoreAdmin::Rest::Client#list_fields FirestoreAdmin.ListFields} only supports listing fields
                #     that have been explicitly overridden. To issue this query, call
                #     {::Google::Cloud::Firestore::Admin::V1::FirestoreAdmin::Rest::Client#list_fields FirestoreAdmin.ListFields} with a filter that includes
                #     `indexConfig.usesAncestorConfig:false` .
                #   @param page_size [::Integer]
                #     The number of results to return.
                #   @param page_token [::String]
                #     A page token, returned from a previous call to
                #     {::Google::Cloud::Firestore::Admin::V1::FirestoreAdmin::Rest::Client#list_fields FirestoreAdmin.ListFields}, that may be used to get the next
                #     page of results.
                # @yield [result, operation] Access the result along with the TransportOperation object
                # @yieldparam result [::Gapic::Rest::PagedEnumerable<::Google::Cloud::Firestore::Admin::V1::Field>]
                # @yieldparam operation [::Gapic::Rest::TransportOperation]
                #
                # @return [::Gapic::Rest::PagedEnumerable<::Google::Cloud::Firestore::Admin::V1::Field>]
                #
                # @raise [::Google::Cloud::Error] if the REST call is aborted.
                def list_fields request, options = nil
                  raise ::ArgumentError, "request must be provided" if request.nil?

                  request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::Firestore::Admin::V1::ListFieldsRequest

                  # 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_fields.metadata.to_h

                  # Set x-goog-api-client and x-goog-user-project 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::Firestore::Admin::V1::VERSION,
                    transports_version_send: [:rest]

                  call_metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

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

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

                  @firestore_admin_stub.list_fields request, options do |result, operation|
                    result = ::Gapic::Rest::PagedEnumerable.new @firestore_admin_stub, :list_fields, "fields", request, result, options
                    yield result, operation if block_given?
                    return result
                  end
                rescue ::Gapic::Rest::Error => e
                  raise ::Google::Cloud::Error.from_error(e)
                end

                ##
                # Exports a copy of all or a subset of documents from Google Cloud Firestore
                # to another storage system, such as Google Cloud Storage. Recent updates to
                # documents may not be reflected in the export. The export occurs in the
                # background and its progress can be monitored and managed via the
                # Operation resource that is created. The output of an export may only be
                # used once the associated operation is done. If an export operation is
                # cancelled before completion it may leave partial data behind in Google
                # Cloud Storage.
                #
                # For more details on export behavior and output format, refer to:
                # https://cloud.google.com/firestore/docs/manage-data/export-import
                #
                # @overload export_documents(request, options = nil)
                #   Pass arguments to `export_documents` via a request object, either of type
                #   {::Google::Cloud::Firestore::Admin::V1::ExportDocumentsRequest} or an equivalent Hash.
                #
                #   @param request [::Google::Cloud::Firestore::Admin::V1::ExportDocumentsRequest, ::Hash]
                #     A request object representing the call parameters. Required. To specify no
                #     parameters, or to keep all the default parameter values, pass an empty Hash.
                #   @param options [::Gapic::CallOptions, ::Hash]
                #     Overrides the default settings for this call, e.g, timeout, retries etc. Optional.
                #
                # @overload export_documents(name: nil, collection_ids: nil, output_uri_prefix: nil)
                #   Pass arguments to `export_documents` via keyword arguments. Note that at
                #   least one keyword argument is required. To specify no parameters, or to keep all
                #   the default parameter values, pass an empty Hash as a request object (see above).
                #
                #   @param name [::String]
                #     Required. Database to export. Should be of the form:
                #     `projects/{project_id}/databases/{database_id}`.
                #   @param collection_ids [::Array<::String>]
                #     Which collection ids to export. Unspecified means all collections.
                #   @param output_uri_prefix [::String]
                #     The output URI. Currently only supports Google Cloud Storage URIs of the
                #     form: `gs://BUCKET_NAME[/NAMESPACE_PATH]`, where `BUCKET_NAME` is the name
                #     of the Google Cloud Storage bucket and `NAMESPACE_PATH` is an optional
                #     Google Cloud Storage namespace path. When
                #     choosing a name, be sure to consider Google Cloud Storage naming
                #     guidelines: https://cloud.google.com/storage/docs/naming.
                #     If the URI is a bucket (without a namespace path), a prefix will be
                #     generated based on the start time.
                # @yield [result, operation] Access the result along with the TransportOperation object
                # @yieldparam result [::Gapic::Operation]
                # @yieldparam operation [::Gapic::Rest::TransportOperation]
                #
                # @return [::Gapic::Operation]
                #
                # @raise [::Google::Cloud::Error] if the REST call is aborted.
                def export_documents request, options = nil
                  raise ::ArgumentError, "request must be provided" if request.nil?

                  request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::Firestore::Admin::V1::ExportDocumentsRequest

                  # 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.export_documents.metadata.to_h

                  # Set x-goog-api-client and x-goog-user-project 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::Firestore::Admin::V1::VERSION,
                    transports_version_send: [:rest]

                  call_metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

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

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

                  @firestore_admin_stub.export_documents request, options do |result, operation|
                    result = ::Gapic::Operation.new result, @operations_client, options: options
                    yield result, operation if block_given?
                    return result
                  end
                rescue ::Gapic::Rest::Error => e
                  raise ::Google::Cloud::Error.from_error(e)
                end

                ##
                # Imports documents into Google Cloud Firestore. Existing documents with the
                # same name are overwritten. The import occurs in the background and its
                # progress can be monitored and managed via the Operation resource that is
                # created. If an ImportDocuments operation is cancelled, it is possible
                # that a subset of the data has already been imported to Cloud Firestore.
                #
                # @overload import_documents(request, options = nil)
                #   Pass arguments to `import_documents` via a request object, either of type
                #   {::Google::Cloud::Firestore::Admin::V1::ImportDocumentsRequest} or an equivalent Hash.
                #
                #   @param request [::Google::Cloud::Firestore::Admin::V1::ImportDocumentsRequest, ::Hash]
                #     A request object representing the call parameters. Required. To specify no
                #     parameters, or to keep all the default parameter values, pass an empty Hash.
                #   @param options [::Gapic::CallOptions, ::Hash]
                #     Overrides the default settings for this call, e.g, timeout, retries etc. Optional.
                #
                # @overload import_documents(name: nil, collection_ids: nil, input_uri_prefix: nil)
                #   Pass arguments to `import_documents` via keyword arguments. Note that at
                #   least one keyword argument is required. To specify no parameters, or to keep all
                #   the default parameter values, pass an empty Hash as a request object (see above).
                #
                #   @param name [::String]
                #     Required. Database to import into. Should be of the form:
                #     `projects/{project_id}/databases/{database_id}`.
                #   @param collection_ids [::Array<::String>]
                #     Which collection ids to import. Unspecified means all collections included
                #     in the import.
                #   @param input_uri_prefix [::String]
                #     Location of the exported files.
                #     This must match the output_uri_prefix of an ExportDocumentsResponse from
                #     an export that has completed successfully.
                #     See:
                #     {::Google::Cloud::Firestore::Admin::V1::ExportDocumentsResponse#output_uri_prefix google.firestore.admin.v1.ExportDocumentsResponse.output_uri_prefix}.
                # @yield [result, operation] Access the result along with the TransportOperation object
                # @yieldparam result [::Gapic::Operation]
                # @yieldparam operation [::Gapic::Rest::TransportOperation]
                #
                # @return [::Gapic::Operation]
                #
                # @raise [::Google::Cloud::Error] if the REST call is aborted.
                def import_documents request, options = nil
                  raise ::ArgumentError, "request must be provided" if request.nil?

                  request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::Firestore::Admin::V1::ImportDocumentsRequest

                  # 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.import_documents.metadata.to_h

                  # Set x-goog-api-client and x-goog-user-project 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::Firestore::Admin::V1::VERSION,
                    transports_version_send: [:rest]

                  call_metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

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

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

                  @firestore_admin_stub.import_documents request, options do |result, operation|
                    result = ::Gapic::Operation.new result, @operations_client, options: options
                    yield result, operation if block_given?
                    return result
                  end
                rescue ::Gapic::Rest::Error => e
                  raise ::Google::Cloud::Error.from_error(e)
                end

                ##
                # Gets information about a database.
                #
                # @overload get_database(request, options = nil)
                #   Pass arguments to `get_database` via a request object, either of type
                #   {::Google::Cloud::Firestore::Admin::V1::GetDatabaseRequest} or an equivalent Hash.
                #
                #   @param request [::Google::Cloud::Firestore::Admin::V1::GetDatabaseRequest, ::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_database(name: nil)
                #   Pass arguments to `get_database` via keyword arguments. Note that at
                #   least one keyword argument is required. To specify no parameters, or to keep all
                #   the default parameter values, pass an empty Hash as a request object (see above).
                #
                #   @param name [::String]
                #     Required. A name of the form
                #     `projects/{project_id}/databases/{database_id}`
                # @yield [result, operation] Access the result along with the TransportOperation object
                # @yieldparam result [::Google::Cloud::Firestore::Admin::V1::Database]
                # @yieldparam operation [::Gapic::Rest::TransportOperation]
                #
                # @return [::Google::Cloud::Firestore::Admin::V1::Database]
                #
                # @raise [::Google::Cloud::Error] if the REST call is aborted.
                def get_database request, options = nil
                  raise ::ArgumentError, "request must be provided" if request.nil?

                  request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::Firestore::Admin::V1::GetDatabaseRequest

                  # 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_database.metadata.to_h

                  # Set x-goog-api-client and x-goog-user-project 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::Firestore::Admin::V1::VERSION,
                    transports_version_send: [:rest]

                  call_metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

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

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

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

                ##
                # List all the databases in the project.
                #
                # @overload list_databases(request, options = nil)
                #   Pass arguments to `list_databases` via a request object, either of type
                #   {::Google::Cloud::Firestore::Admin::V1::ListDatabasesRequest} or an equivalent Hash.
                #
                #   @param request [::Google::Cloud::Firestore::Admin::V1::ListDatabasesRequest, ::Hash]
                #     A request object representing the call parameters. Required. To specify no
                #     parameters, or to keep all the default parameter values, pass an empty Hash.
                #   @param options [::Gapic::CallOptions, ::Hash]
                #     Overrides the default settings for this call, e.g, timeout, retries etc. Optional.
                #
                # @overload list_databases(parent: nil)
                #   Pass arguments to `list_databases` via keyword arguments. Note that at
                #   least one keyword argument is required. To specify no parameters, or to keep all
                #   the default parameter values, pass an empty Hash as a request object (see above).
                #
                #   @param parent [::String]
                #     Required. A parent name of the form
                #     `projects/{project_id}`
                # @yield [result, operation] Access the result along with the TransportOperation object
                # @yieldparam result [::Google::Cloud::Firestore::Admin::V1::ListDatabasesResponse]
                # @yieldparam operation [::Gapic::Rest::TransportOperation]
                #
                # @return [::Google::Cloud::Firestore::Admin::V1::ListDatabasesResponse]
                #
                # @raise [::Google::Cloud::Error] if the REST call is aborted.
                def list_databases request, options = nil
                  raise ::ArgumentError, "request must be provided" if request.nil?

                  request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::Firestore::Admin::V1::ListDatabasesRequest

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

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

                  # Set x-goog-api-client and x-goog-user-project 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::Firestore::Admin::V1::VERSION,
                    transports_version_send: [:rest]

                  call_metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

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

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

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

                ##
                # Updates a database.
                #
                # @overload update_database(request, options = nil)
                #   Pass arguments to `update_database` via a request object, either of type
                #   {::Google::Cloud::Firestore::Admin::V1::UpdateDatabaseRequest} or an equivalent Hash.
                #
                #   @param request [::Google::Cloud::Firestore::Admin::V1::UpdateDatabaseRequest, ::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_database(database: nil, update_mask: nil)
                #   Pass arguments to `update_database` via keyword arguments. Note that at
                #   least one keyword argument is required. To specify no parameters, or to keep all
                #   the default parameter values, pass an empty Hash as a request object (see above).
                #
                #   @param database [::Google::Cloud::Firestore::Admin::V1::Database, ::Hash]
                #     Required. The database to update.
                #   @param update_mask [::Google::Protobuf::FieldMask, ::Hash]
                #     The list of fields to be updated.
                # @yield [result, operation] Access the result along with the TransportOperation object
                # @yieldparam result [::Gapic::Operation]
                # @yieldparam operation [::Gapic::Rest::TransportOperation]
                #
                # @return [::Gapic::Operation]
                #
                # @raise [::Google::Cloud::Error] if the REST call is aborted.
                def update_database request, options = nil
                  raise ::ArgumentError, "request must be provided" if request.nil?

                  request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::Firestore::Admin::V1::UpdateDatabaseRequest

                  # 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_database.metadata.to_h

                  # Set x-goog-api-client and x-goog-user-project 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::Firestore::Admin::V1::VERSION,
                    transports_version_send: [:rest]

                  call_metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

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

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

                  @firestore_admin_stub.update_database request, options do |result, operation|
                    result = ::Gapic::Operation.new result, @operations_client, options: options
                    yield result, operation if block_given?
                    return result
                  end
                rescue ::Gapic::Rest::Error => e
                  raise ::Google::Cloud::Error.from_error(e)
                end

                ##
                # Configuration class for the FirestoreAdmin REST API.
                #
                # This class represents the configuration for FirestoreAdmin 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::Firestore::Admin::V1::FirestoreAdmin::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
                #   # create_index to 20 seconds,
                #   # and all remaining timeouts to 10 seconds.
                #   ::Google::Cloud::Firestore::Admin::V1::FirestoreAdmin::Rest::Client.configure do |config|
                #     config.timeout = 10.0
                #     config.rpcs.create_index.timeout = 20.0
                #   end
                #
                #   # Apply the above configuration only to a new client.
                #   client = ::Google::Cloud::Firestore::Admin::V1::FirestoreAdmin::Rest::Client.new do |config|
                #     config.timeout = 10.0
                #     config.rpcs.create_index.timeout = 20.0
                #   end
                #
                # @!attribute [rw] endpoint
                #   The hostname or hostname:port of the service endpoint.
                #   Defaults to `"firestore.googleapis.com"`.
                #   @return [::String]
                # @!attribute [rw] credentials
                #   Credentials to send with calls. You may provide any of the following types:
                #    *  (`String`) The path to a service account key file in JSON format
                #    *  (`Hash`) A service account key as a Hash
                #    *  (`Google::Auth::Credentials`) A googleauth credentials object
                #       (see the [googleauth docs](https://googleapis.dev/ruby/googleauth/latest/index.html))
                #    *  (`Signet::OAuth2::Client`) A signet oauth2 client object
                #       (see the [signet docs](https://googleapis.dev/ruby/signet/latest/Signet/OAuth2/Client.html))
                #    *  (`nil`) indicating no credentials
                #   @return [::Object]
                # @!attribute [rw] scope
                #   The OAuth scopes
                #   @return [::Array<::String>]
                # @!attribute [rw] lib_name
                #   The library name as recorded in instrumentation and logging
                #   @return [::String]
                # @!attribute [rw] lib_version
                #   The library version as recorded in instrumentation and logging
                #   @return [::String]
                # @!attribute [rw] 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]
                #
                class Configuration
                  extend ::Gapic::Config

                  config_attr :endpoint,      "firestore.googleapis.com", ::String
                  config_attr :credentials,   nil do |value|
                    allowed = [::String, ::Hash, ::Proc, ::Symbol, ::Google::Auth::Credentials, ::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

                  # @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 FirestoreAdmin 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 `create_index`
                    # @return [::Gapic::Config::Method]
                    #
                    attr_reader :create_index
                    ##
                    # RPC-specific configuration for `list_indexes`
                    # @return [::Gapic::Config::Method]
                    #
                    attr_reader :list_indexes
                    ##
                    # RPC-specific configuration for `get_index`
                    # @return [::Gapic::Config::Method]
                    #
                    attr_reader :get_index
                    ##
                    # RPC-specific configuration for `delete_index`
                    # @return [::Gapic::Config::Method]
                    #
                    attr_reader :delete_index
                    ##
                    # RPC-specific configuration for `get_field`
                    # @return [::Gapic::Config::Method]
                    #
                    attr_reader :get_field
                    ##
                    # RPC-specific configuration for `update_field`
                    # @return [::Gapic::Config::Method]
                    #
                    attr_reader :update_field
                    ##
                    # RPC-specific configuration for `list_fields`
                    # @return [::Gapic::Config::Method]
                    #
                    attr_reader :list_fields
                    ##
                    # RPC-specific configuration for `export_documents`
                    # @return [::Gapic::Config::Method]
                    #
                    attr_reader :export_documents
                    ##
                    # RPC-specific configuration for `import_documents`
                    # @return [::Gapic::Config::Method]
                    #
                    attr_reader :import_documents
                    ##
                    # RPC-specific configuration for `get_database`
                    # @return [::Gapic::Config::Method]
                    #
                    attr_reader :get_database
                    ##
                    # RPC-specific configuration for `list_databases`
                    # @return [::Gapic::Config::Method]
                    #
                    attr_reader :list_databases
                    ##
                    # RPC-specific configuration for `update_database`
                    # @return [::Gapic::Config::Method]
                    #
                    attr_reader :update_database

                    # @private
                    def initialize parent_rpcs = nil
                      create_index_config = parent_rpcs.create_index if parent_rpcs.respond_to? :create_index
                      @create_index = ::Gapic::Config::Method.new create_index_config
                      list_indexes_config = parent_rpcs.list_indexes if parent_rpcs.respond_to? :list_indexes
                      @list_indexes = ::Gapic::Config::Method.new list_indexes_config
                      get_index_config = parent_rpcs.get_index if parent_rpcs.respond_to? :get_index
                      @get_index = ::Gapic::Config::Method.new get_index_config
                      delete_index_config = parent_rpcs.delete_index if parent_rpcs.respond_to? :delete_index
                      @delete_index = ::Gapic::Config::Method.new delete_index_config
                      get_field_config = parent_rpcs.get_field if parent_rpcs.respond_to? :get_field
                      @get_field = ::Gapic::Config::Method.new get_field_config
                      update_field_config = parent_rpcs.update_field if parent_rpcs.respond_to? :update_field
                      @update_field = ::Gapic::Config::Method.new update_field_config
                      list_fields_config = parent_rpcs.list_fields if parent_rpcs.respond_to? :list_fields
                      @list_fields = ::Gapic::Config::Method.new list_fields_config
                      export_documents_config = parent_rpcs.export_documents if parent_rpcs.respond_to? :export_documents
                      @export_documents = ::Gapic::Config::Method.new export_documents_config
                      import_documents_config = parent_rpcs.import_documents if parent_rpcs.respond_to? :import_documents
                      @import_documents = ::Gapic::Config::Method.new import_documents_config
                      get_database_config = parent_rpcs.get_database if parent_rpcs.respond_to? :get_database
                      @get_database = ::Gapic::Config::Method.new get_database_config
                      list_databases_config = parent_rpcs.list_databases if parent_rpcs.respond_to? :list_databases
                      @list_databases = ::Gapic::Config::Method.new list_databases_config
                      update_database_config = parent_rpcs.update_database if parent_rpcs.respond_to? :update_database
                      @update_database = ::Gapic::Config::Method.new update_database_config

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