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

/*
 * GENERATED CODE WARNING
 * Generated by gapic-generator-php from the file
 * https://github.com/googleapis/googleapis/blob/master/google/cloud/servicedirectory/v1beta1/registration_service.proto
 * Updates to the above are reflected here through a refresh process.
 *
 * @experimental
 */

namespace Google\Cloud\ServiceDirectory\V1beta1\Gapic;

use Google\ApiCore\ApiException;
use Google\ApiCore\CredentialsWrapper;
use Google\ApiCore\GapicClientTrait;
use Google\ApiCore\PathTemplate;
use Google\ApiCore\RequestParamsHeaderDescriptor;
use Google\ApiCore\RetrySettings;
use Google\ApiCore\Transport\TransportInterface;
use Google\ApiCore\ValidationException;
use Google\Auth\FetchAuthTokenInterface;
use Google\Cloud\Iam\V1\GetIamPolicyRequest;
use Google\Cloud\Iam\V1\GetPolicyOptions;
use Google\Cloud\Iam\V1\Policy;
use Google\Cloud\Iam\V1\SetIamPolicyRequest;
use Google\Cloud\Iam\V1\TestIamPermissionsRequest;
use Google\Cloud\Iam\V1\TestIamPermissionsResponse;
use Google\Cloud\ServiceDirectory\V1beta1\CreateEndpointRequest;
use Google\Cloud\ServiceDirectory\V1beta1\CreateNamespaceRequest;
use Google\Cloud\ServiceDirectory\V1beta1\CreateServiceRequest;
use Google\Cloud\ServiceDirectory\V1beta1\DeleteEndpointRequest;
use Google\Cloud\ServiceDirectory\V1beta1\DeleteNamespaceRequest;
use Google\Cloud\ServiceDirectory\V1beta1\DeleteServiceRequest;
use Google\Cloud\ServiceDirectory\V1beta1\Endpoint;
use Google\Cloud\ServiceDirectory\V1beta1\GetEndpointRequest;
use Google\Cloud\ServiceDirectory\V1beta1\GetNamespaceRequest;
use Google\Cloud\ServiceDirectory\V1beta1\GetServiceRequest;
use Google\Cloud\ServiceDirectory\V1beta1\ListEndpointsRequest;
use Google\Cloud\ServiceDirectory\V1beta1\ListEndpointsResponse;
use Google\Cloud\ServiceDirectory\V1beta1\ListNamespacesRequest;
use Google\Cloud\ServiceDirectory\V1beta1\ListNamespacesResponse;
use Google\Cloud\ServiceDirectory\V1beta1\ListServicesRequest;
use Google\Cloud\ServiceDirectory\V1beta1\ListServicesResponse;
use Google\Cloud\ServiceDirectory\V1beta1\PBNamespace;
use Google\Cloud\ServiceDirectory\V1beta1\Service;
use Google\Cloud\ServiceDirectory\V1beta1\UpdateEndpointRequest;
use Google\Cloud\ServiceDirectory\V1beta1\UpdateNamespaceRequest;
use Google\Cloud\ServiceDirectory\V1beta1\UpdateServiceRequest;
use Google\Protobuf\FieldMask;
use Google\Protobuf\GPBEmpty;

/**
 * Service Description: Service Directory API for registering services. It defines the following
 * resource model:
 *
 * - The API has a collection of
 * [Namespace][google.cloud.servicedirectory.v1beta1.Namespace]
 * resources, named `projects/&#42;/locations/&#42;/namespaces/*`.
 *
 * - Each Namespace has a collection of
 * [Service][google.cloud.servicedirectory.v1beta1.Service] resources, named
 * `projects/&#42;/locations/&#42;/namespaces/&#42;/services/*`.
 *
 * - Each Service has a collection of
 * [Endpoint][google.cloud.servicedirectory.v1beta1.Endpoint]
 * resources, named
 * `projects/&#42;/locations/&#42;/namespaces/&#42;/services/&#42;/endpoints/*`.
 *
 * This class provides the ability to make remote calls to the backing service through method
 * calls that map to API methods. Sample code to get started:
 *
 * ```
 * $registrationServiceClient = new RegistrationServiceClient();
 * try {
 *     $formattedParent = $registrationServiceClient->serviceName('[PROJECT]', '[LOCATION]', '[NAMESPACE]', '[SERVICE]');
 *     $endpointId = 'endpoint_id';
 *     $endpoint = new Endpoint();
 *     $response = $registrationServiceClient->createEndpoint($formattedParent, $endpointId, $endpoint);
 * } finally {
 *     $registrationServiceClient->close();
 * }
 * ```
 *
 * Many parameters require resource names to be formatted in a particular way. To
 * assist with these names, this class includes a format method for each type of
 * name, and additionally a parseName method to extract the individual identifiers
 * contained within formatted names that are returned by the API.
 *
 * @experimental
 */
class RegistrationServiceGapicClient
{
    use GapicClientTrait;

    /** The name of the service. */
    const SERVICE_NAME = 'google.cloud.servicedirectory.v1beta1.RegistrationService';

    /** The default address of the service. */
    const SERVICE_ADDRESS = 'servicedirectory.googleapis.com';

    /** The default port of the service. */
    const DEFAULT_SERVICE_PORT = 443;

    /** The name of the code generator, to be included in the agent header. */
    const CODEGEN_NAME = 'gapic';

    /** The default scopes required by the service. */
    public static $serviceScopes = [
        'https://www.googleapis.com/auth/cloud-platform',
    ];

    private static $endpointNameTemplate;

    private static $locationNameTemplate;

    private static $namespaceNameTemplate;

    private static $networkNameTemplate;

    private static $serviceNameTemplate;

    private static $pathTemplateMap;

    private static function getClientDefaults()
    {
        return [
            'serviceName' => self::SERVICE_NAME,
            'apiEndpoint' =>
                self::SERVICE_ADDRESS . ':' . self::DEFAULT_SERVICE_PORT,
            'clientConfig' =>
                __DIR__ .
                '/../resources/registration_service_client_config.json',
            'descriptorsConfigPath' =>
                __DIR__ .
                '/../resources/registration_service_descriptor_config.php',
            'gcpApiConfigPath' =>
                __DIR__ . '/../resources/registration_service_grpc_config.json',
            'credentialsConfig' => [
                'defaultScopes' => self::$serviceScopes,
            ],
            'transportConfig' => [
                'rest' => [
                    'restClientConfigPath' =>
                        __DIR__ .
                        '/../resources/registration_service_rest_client_config.php',
                ],
            ],
        ];
    }

    private static function getEndpointNameTemplate()
    {
        if (self::$endpointNameTemplate == null) {
            self::$endpointNameTemplate = new PathTemplate(
                'projects/{project}/locations/{location}/namespaces/{namespace}/services/{service}/endpoints/{endpoint}'
            );
        }

        return self::$endpointNameTemplate;
    }

    private static function getLocationNameTemplate()
    {
        if (self::$locationNameTemplate == null) {
            self::$locationNameTemplate = new PathTemplate(
                'projects/{project}/locations/{location}'
            );
        }

        return self::$locationNameTemplate;
    }

    private static function getNamespaceNameTemplate()
    {
        if (self::$namespaceNameTemplate == null) {
            self::$namespaceNameTemplate = new PathTemplate(
                'projects/{project}/locations/{location}/namespaces/{namespace}'
            );
        }

        return self::$namespaceNameTemplate;
    }

    private static function getNetworkNameTemplate()
    {
        if (self::$networkNameTemplate == null) {
            self::$networkNameTemplate = new PathTemplate(
                'projects/{project}/locations/global/networks/{network}'
            );
        }

        return self::$networkNameTemplate;
    }

    private static function getServiceNameTemplate()
    {
        if (self::$serviceNameTemplate == null) {
            self::$serviceNameTemplate = new PathTemplate(
                'projects/{project}/locations/{location}/namespaces/{namespace}/services/{service}'
            );
        }

        return self::$serviceNameTemplate;
    }

    private static function getPathTemplateMap()
    {
        if (self::$pathTemplateMap == null) {
            self::$pathTemplateMap = [
                'endpoint' => self::getEndpointNameTemplate(),
                'location' => self::getLocationNameTemplate(),
                'namespace' => self::getNamespaceNameTemplate(),
                'network' => self::getNetworkNameTemplate(),
                'service' => self::getServiceNameTemplate(),
            ];
        }

        return self::$pathTemplateMap;
    }

    /**
     * Formats a string containing the fully-qualified path to represent a endpoint
     * resource.
     *
     * @param string $project
     * @param string $location
     * @param string $namespace
     * @param string $service
     * @param string $endpoint
     *
     * @return string The formatted endpoint resource.
     *
     * @experimental
     */
    public static function endpointName(
        $project,
        $location,
        $namespace,
        $service,
        $endpoint
    ) {
        return self::getEndpointNameTemplate()->render([
            'project' => $project,
            'location' => $location,
            'namespace' => $namespace,
            'service' => $service,
            'endpoint' => $endpoint,
        ]);
    }

    /**
     * Formats a string containing the fully-qualified path to represent a location
     * resource.
     *
     * @param string $project
     * @param string $location
     *
     * @return string The formatted location resource.
     *
     * @experimental
     */
    public static function locationName($project, $location)
    {
        return self::getLocationNameTemplate()->render([
            'project' => $project,
            'location' => $location,
        ]);
    }

    /**
     * Formats a string containing the fully-qualified path to represent a namespace
     * resource.
     *
     * @param string $project
     * @param string $location
     * @param string $namespace
     *
     * @return string The formatted namespace resource.
     *
     * @experimental
     */
    public static function namespaceName($project, $location, $namespace)
    {
        return self::getNamespaceNameTemplate()->render([
            'project' => $project,
            'location' => $location,
            'namespace' => $namespace,
        ]);
    }

    /**
     * Formats a string containing the fully-qualified path to represent a network
     * resource.
     *
     * @param string $project
     * @param string $network
     *
     * @return string The formatted network resource.
     *
     * @experimental
     */
    public static function networkName($project, $network)
    {
        return self::getNetworkNameTemplate()->render([
            'project' => $project,
            'network' => $network,
        ]);
    }

    /**
     * Formats a string containing the fully-qualified path to represent a service
     * resource.
     *
     * @param string $project
     * @param string $location
     * @param string $namespace
     * @param string $service
     *
     * @return string The formatted service resource.
     *
     * @experimental
     */
    public static function serviceName(
        $project,
        $location,
        $namespace,
        $service
    ) {
        return self::getServiceNameTemplate()->render([
            'project' => $project,
            'location' => $location,
            'namespace' => $namespace,
            'service' => $service,
        ]);
    }

    /**
     * Parses a formatted name string and returns an associative array of the components in the name.
     * The following name formats are supported:
     * Template: Pattern
     * - endpoint: projects/{project}/locations/{location}/namespaces/{namespace}/services/{service}/endpoints/{endpoint}
     * - location: projects/{project}/locations/{location}
     * - namespace: projects/{project}/locations/{location}/namespaces/{namespace}
     * - network: projects/{project}/locations/global/networks/{network}
     * - service: projects/{project}/locations/{location}/namespaces/{namespace}/services/{service}
     *
     * The optional $template argument can be supplied to specify a particular pattern,
     * and must match one of the templates listed above. If no $template argument is
     * provided, or if the $template argument does not match one of the templates
     * listed, then parseName will check each of the supported templates, and return
     * the first match.
     *
     * @param string $formattedName The formatted name string
     * @param string $template      Optional name of template to match
     *
     * @return array An associative array from name component IDs to component values.
     *
     * @throws ValidationException If $formattedName could not be matched.
     *
     * @experimental
     */
    public static function parseName($formattedName, $template = null)
    {
        $templateMap = self::getPathTemplateMap();
        if ($template) {
            if (!isset($templateMap[$template])) {
                throw new ValidationException(
                    "Template name $template does not exist"
                );
            }

            return $templateMap[$template]->match($formattedName);
        }

        foreach ($templateMap as $templateName => $pathTemplate) {
            try {
                return $pathTemplate->match($formattedName);
            } catch (ValidationException $ex) {
                // Swallow the exception to continue trying other path templates
            }
        }

        throw new ValidationException(
            "Input did not match any known format. Input: $formattedName"
        );
    }

    /**
     * Constructor.
     *
     * @param array $options {
     *     Optional. Options for configuring the service API wrapper.
     *
     *     @type string $apiEndpoint
     *           The address of the API remote host. May optionally include the port, formatted
     *           as "<uri>:<port>". Default 'servicedirectory.googleapis.com:443'.
     *     @type string|array|FetchAuthTokenInterface|CredentialsWrapper $credentials
     *           The credentials to be used by the client to authorize API calls. This option
     *           accepts either a path to a credentials file, or a decoded credentials file as a
     *           PHP array.
     *           *Advanced usage*: In addition, this option can also accept a pre-constructed
     *           {@see \Google\Auth\FetchAuthTokenInterface} object or
     *           {@see \Google\ApiCore\CredentialsWrapper} object. Note that when one of these
     *           objects are provided, any settings in $credentialsConfig will be ignored.
     *     @type array $credentialsConfig
     *           Options used to configure credentials, including auth token caching, for the
     *           client. For a full list of supporting configuration options, see
     *           {@see \Google\ApiCore\CredentialsWrapper::build()} .
     *     @type bool $disableRetries
     *           Determines whether or not retries defined by the client configuration should be
     *           disabled. Defaults to `false`.
     *     @type string|array $clientConfig
     *           Client method configuration, including retry settings. This option can be either
     *           a path to a JSON file, or a PHP array containing the decoded JSON data. By
     *           default this settings points to the default client config file, which is
     *           provided in the resources folder.
     *     @type string|TransportInterface $transport
     *           The transport used for executing network requests. May be either the string
     *           `rest` or `grpc`. Defaults to `grpc` if gRPC support is detected on the system.
     *           *Advanced usage*: Additionally, it is possible to pass in an already
     *           instantiated {@see \Google\ApiCore\Transport\TransportInterface} object. Note
     *           that when this object is provided, any settings in $transportConfig, and any
     *           $apiEndpoint setting, will be ignored.
     *     @type array $transportConfig
     *           Configuration options that will be used to construct the transport. Options for
     *           each supported transport type should be passed in a key for that transport. For
     *           example:
     *           $transportConfig = [
     *               'grpc' => [...],
     *               'rest' => [...],
     *           ];
     *           See the {@see \Google\ApiCore\Transport\GrpcTransport::build()} and
     *           {@see \Google\ApiCore\Transport\RestTransport::build()} methods for the
     *           supported options.
     *     @type callable $clientCertSource
     *           A callable which returns the client cert as a string. This can be used to
     *           provide a certificate and private key to the transport layer for mTLS.
     * }
     *
     * @throws ValidationException
     *
     * @experimental
     */
    public function __construct(array $options = [])
    {
        $clientOptions = $this->buildClientOptions($options);
        $this->setClientOptions($clientOptions);
    }

    /**
     * Creates an endpoint, and returns the new endpoint.
     *
     * Sample code:
     * ```
     * $registrationServiceClient = new RegistrationServiceClient();
     * try {
     *     $formattedParent = $registrationServiceClient->serviceName('[PROJECT]', '[LOCATION]', '[NAMESPACE]', '[SERVICE]');
     *     $endpointId = 'endpoint_id';
     *     $endpoint = new Endpoint();
     *     $response = $registrationServiceClient->createEndpoint($formattedParent, $endpointId, $endpoint);
     * } finally {
     *     $registrationServiceClient->close();
     * }
     * ```
     *
     * @param string   $parent       Required. The resource name of the service that this endpoint provides.
     * @param string   $endpointId   Required. The Resource ID must be 1-63 characters long, and comply with
     *                               <a href="https://www.ietf.org/rfc/rfc1035.txt" target="_blank">RFC1035</a>.
     *                               Specifically, the name must be 1-63 characters long and match the regular
     *                               expression `[a-z](?:[-a-z0-9]{0,61}[a-z0-9])?` which means the first
     *                               character must be a lowercase letter, and all following characters must
     *                               be a dash, lowercase letter, or digit, except the last character, which
     *                               cannot be a dash.
     * @param Endpoint $endpoint     Required. A endpoint with initial fields set.
     * @param array    $optionalArgs {
     *     Optional.
     *
     *     @type RetrySettings|array $retrySettings
     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
     *           associative array of retry settings parameters. See the documentation on
     *           {@see RetrySettings} for example usage.
     * }
     *
     * @return \Google\Cloud\ServiceDirectory\V1beta1\Endpoint
     *
     * @throws ApiException if the remote call fails
     *
     * @experimental
     */
    public function createEndpoint(
        $parent,
        $endpointId,
        $endpoint,
        array $optionalArgs = []
    ) {
        $request = new CreateEndpointRequest();
        $requestParamHeaders = [];
        $request->setParent($parent);
        $request->setEndpointId($endpointId);
        $request->setEndpoint($endpoint);
        $requestParamHeaders['parent'] = $parent;
        $requestParams = new RequestParamsHeaderDescriptor(
            $requestParamHeaders
        );
        $optionalArgs['headers'] = isset($optionalArgs['headers'])
            ? array_merge($requestParams->getHeader(), $optionalArgs['headers'])
            : $requestParams->getHeader();
        return $this->startCall(
            'CreateEndpoint',
            Endpoint::class,
            $optionalArgs,
            $request
        )->wait();
    }

    /**
     * Creates a namespace, and returns the new namespace.
     *
     * Sample code:
     * ```
     * $registrationServiceClient = new RegistrationServiceClient();
     * try {
     *     $formattedParent = $registrationServiceClient->locationName('[PROJECT]', '[LOCATION]');
     *     $namespaceId = 'namespace_id';
     *     $namespace = new PBNamespace();
     *     $response = $registrationServiceClient->createNamespace($formattedParent, $namespaceId, $namespace);
     * } finally {
     *     $registrationServiceClient->close();
     * }
     * ```
     *
     * @param string      $parent       Required. The resource name of the project and location the namespace
     *                                  will be created in.
     * @param string      $namespaceId  Required. The Resource ID must be 1-63 characters long, and comply with
     *                                  <a href="https://www.ietf.org/rfc/rfc1035.txt" target="_blank">RFC1035</a>.
     *                                  Specifically, the name must be 1-63 characters long and match the regular
     *                                  expression `[a-z](?:[-a-z0-9]{0,61}[a-z0-9])?` which means the first
     *                                  character must be a lowercase letter, and all following characters must
     *                                  be a dash, lowercase letter, or digit, except the last character, which
     *                                  cannot be a dash.
     * @param PBNamespace $namespace    Required. A namespace with initial fields set.
     * @param array       $optionalArgs {
     *     Optional.
     *
     *     @type RetrySettings|array $retrySettings
     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
     *           associative array of retry settings parameters. See the documentation on
     *           {@see RetrySettings} for example usage.
     * }
     *
     * @return \Google\Cloud\ServiceDirectory\V1beta1\PBNamespace
     *
     * @throws ApiException if the remote call fails
     *
     * @experimental
     */
    public function createNamespace(
        $parent,
        $namespaceId,
        $namespace,
        array $optionalArgs = []
    ) {
        $request = new CreateNamespaceRequest();
        $requestParamHeaders = [];
        $request->setParent($parent);
        $request->setNamespaceId($namespaceId);
        $request->setNamespace($namespace);
        $requestParamHeaders['parent'] = $parent;
        $requestParams = new RequestParamsHeaderDescriptor(
            $requestParamHeaders
        );
        $optionalArgs['headers'] = isset($optionalArgs['headers'])
            ? array_merge($requestParams->getHeader(), $optionalArgs['headers'])
            : $requestParams->getHeader();
        return $this->startCall(
            'CreateNamespace',
            PBNamespace::class,
            $optionalArgs,
            $request
        )->wait();
    }

    /**
     * Creates a service, and returns the new service.
     *
     * Sample code:
     * ```
     * $registrationServiceClient = new RegistrationServiceClient();
     * try {
     *     $formattedParent = $registrationServiceClient->namespaceName('[PROJECT]', '[LOCATION]', '[NAMESPACE]');
     *     $serviceId = 'service_id';
     *     $service = new Service();
     *     $response = $registrationServiceClient->createService($formattedParent, $serviceId, $service);
     * } finally {
     *     $registrationServiceClient->close();
     * }
     * ```
     *
     * @param string  $parent       Required. The resource name of the namespace this service will belong to.
     * @param string  $serviceId    Required. The Resource ID must be 1-63 characters long, and comply with
     *                              <a href="https://www.ietf.org/rfc/rfc1035.txt" target="_blank">RFC1035</a>.
     *                              Specifically, the name must be 1-63 characters long and match the regular
     *                              expression `[a-z](?:[-a-z0-9]{0,61}[a-z0-9])?` which means the first
     *                              character must be a lowercase letter, and all following characters must
     *                              be a dash, lowercase letter, or digit, except the last character, which
     *                              cannot be a dash.
     * @param Service $service      Required. A service  with initial fields set.
     * @param array   $optionalArgs {
     *     Optional.
     *
     *     @type RetrySettings|array $retrySettings
     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
     *           associative array of retry settings parameters. See the documentation on
     *           {@see RetrySettings} for example usage.
     * }
     *
     * @return \Google\Cloud\ServiceDirectory\V1beta1\Service
     *
     * @throws ApiException if the remote call fails
     *
     * @experimental
     */
    public function createService(
        $parent,
        $serviceId,
        $service,
        array $optionalArgs = []
    ) {
        $request = new CreateServiceRequest();
        $requestParamHeaders = [];
        $request->setParent($parent);
        $request->setServiceId($serviceId);
        $request->setService($service);
        $requestParamHeaders['parent'] = $parent;
        $requestParams = new RequestParamsHeaderDescriptor(
            $requestParamHeaders
        );
        $optionalArgs['headers'] = isset($optionalArgs['headers'])
            ? array_merge($requestParams->getHeader(), $optionalArgs['headers'])
            : $requestParams->getHeader();
        return $this->startCall(
            'CreateService',
            Service::class,
            $optionalArgs,
            $request
        )->wait();
    }

    /**
     * Deletes an endpoint.
     *
     * Sample code:
     * ```
     * $registrationServiceClient = new RegistrationServiceClient();
     * try {
     *     $formattedName = $registrationServiceClient->endpointName('[PROJECT]', '[LOCATION]', '[NAMESPACE]', '[SERVICE]', '[ENDPOINT]');
     *     $registrationServiceClient->deleteEndpoint($formattedName);
     * } finally {
     *     $registrationServiceClient->close();
     * }
     * ```
     *
     * @param string $name         Required. The name of the endpoint to delete.
     * @param array  $optionalArgs {
     *     Optional.
     *
     *     @type RetrySettings|array $retrySettings
     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
     *           associative array of retry settings parameters. See the documentation on
     *           {@see RetrySettings} for example usage.
     * }
     *
     * @throws ApiException if the remote call fails
     *
     * @experimental
     */
    public function deleteEndpoint($name, array $optionalArgs = [])
    {
        $request = new DeleteEndpointRequest();
        $requestParamHeaders = [];
        $request->setName($name);
        $requestParamHeaders['name'] = $name;
        $requestParams = new RequestParamsHeaderDescriptor(
            $requestParamHeaders
        );
        $optionalArgs['headers'] = isset($optionalArgs['headers'])
            ? array_merge($requestParams->getHeader(), $optionalArgs['headers'])
            : $requestParams->getHeader();
        return $this->startCall(
            'DeleteEndpoint',
            GPBEmpty::class,
            $optionalArgs,
            $request
        )->wait();
    }

    /**
     * Deletes a namespace. This also deletes all services and endpoints in
     * the namespace.
     *
     * Sample code:
     * ```
     * $registrationServiceClient = new RegistrationServiceClient();
     * try {
     *     $formattedName = $registrationServiceClient->namespaceName('[PROJECT]', '[LOCATION]', '[NAMESPACE]');
     *     $registrationServiceClient->deleteNamespace($formattedName);
     * } finally {
     *     $registrationServiceClient->close();
     * }
     * ```
     *
     * @param string $name         Required. The name of the namespace to delete.
     * @param array  $optionalArgs {
     *     Optional.
     *
     *     @type RetrySettings|array $retrySettings
     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
     *           associative array of retry settings parameters. See the documentation on
     *           {@see RetrySettings} for example usage.
     * }
     *
     * @throws ApiException if the remote call fails
     *
     * @experimental
     */
    public function deleteNamespace($name, array $optionalArgs = [])
    {
        $request = new DeleteNamespaceRequest();
        $requestParamHeaders = [];
        $request->setName($name);
        $requestParamHeaders['name'] = $name;
        $requestParams = new RequestParamsHeaderDescriptor(
            $requestParamHeaders
        );
        $optionalArgs['headers'] = isset($optionalArgs['headers'])
            ? array_merge($requestParams->getHeader(), $optionalArgs['headers'])
            : $requestParams->getHeader();
        return $this->startCall(
            'DeleteNamespace',
            GPBEmpty::class,
            $optionalArgs,
            $request
        )->wait();
    }

    /**
     * Deletes a service. This also deletes all endpoints associated with
     * the service.
     *
     * Sample code:
     * ```
     * $registrationServiceClient = new RegistrationServiceClient();
     * try {
     *     $formattedName = $registrationServiceClient->serviceName('[PROJECT]', '[LOCATION]', '[NAMESPACE]', '[SERVICE]');
     *     $registrationServiceClient->deleteService($formattedName);
     * } finally {
     *     $registrationServiceClient->close();
     * }
     * ```
     *
     * @param string $name         Required. The name of the service to delete.
     * @param array  $optionalArgs {
     *     Optional.
     *
     *     @type RetrySettings|array $retrySettings
     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
     *           associative array of retry settings parameters. See the documentation on
     *           {@see RetrySettings} for example usage.
     * }
     *
     * @throws ApiException if the remote call fails
     *
     * @experimental
     */
    public function deleteService($name, array $optionalArgs = [])
    {
        $request = new DeleteServiceRequest();
        $requestParamHeaders = [];
        $request->setName($name);
        $requestParamHeaders['name'] = $name;
        $requestParams = new RequestParamsHeaderDescriptor(
            $requestParamHeaders
        );
        $optionalArgs['headers'] = isset($optionalArgs['headers'])
            ? array_merge($requestParams->getHeader(), $optionalArgs['headers'])
            : $requestParams->getHeader();
        return $this->startCall(
            'DeleteService',
            GPBEmpty::class,
            $optionalArgs,
            $request
        )->wait();
    }

    /**
     * Gets an endpoint.
     *
     * Sample code:
     * ```
     * $registrationServiceClient = new RegistrationServiceClient();
     * try {
     *     $formattedName = $registrationServiceClient->endpointName('[PROJECT]', '[LOCATION]', '[NAMESPACE]', '[SERVICE]', '[ENDPOINT]');
     *     $response = $registrationServiceClient->getEndpoint($formattedName);
     * } finally {
     *     $registrationServiceClient->close();
     * }
     * ```
     *
     * @param string $name         Required. The name of the endpoint to get.
     * @param array  $optionalArgs {
     *     Optional.
     *
     *     @type RetrySettings|array $retrySettings
     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
     *           associative array of retry settings parameters. See the documentation on
     *           {@see RetrySettings} for example usage.
     * }
     *
     * @return \Google\Cloud\ServiceDirectory\V1beta1\Endpoint
     *
     * @throws ApiException if the remote call fails
     *
     * @experimental
     */
    public function getEndpoint($name, array $optionalArgs = [])
    {
        $request = new GetEndpointRequest();
        $requestParamHeaders = [];
        $request->setName($name);
        $requestParamHeaders['name'] = $name;
        $requestParams = new RequestParamsHeaderDescriptor(
            $requestParamHeaders
        );
        $optionalArgs['headers'] = isset($optionalArgs['headers'])
            ? array_merge($requestParams->getHeader(), $optionalArgs['headers'])
            : $requestParams->getHeader();
        return $this->startCall(
            'GetEndpoint',
            Endpoint::class,
            $optionalArgs,
            $request
        )->wait();
    }

    /**
     * Gets the IAM Policy for a resource (namespace or service only).
     *
     * Sample code:
     * ```
     * $registrationServiceClient = new RegistrationServiceClient();
     * try {
     *     $resource = 'resource';
     *     $response = $registrationServiceClient->getIamPolicy($resource);
     * } finally {
     *     $registrationServiceClient->close();
     * }
     * ```
     *
     * @param string $resource     REQUIRED: The resource for which the policy is being requested.
     *                             See the operation documentation for the appropriate value for this field.
     * @param array  $optionalArgs {
     *     Optional.
     *
     *     @type GetPolicyOptions $options
     *           OPTIONAL: A `GetPolicyOptions` object for specifying options to
     *           `GetIamPolicy`.
     *     @type RetrySettings|array $retrySettings
     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
     *           associative array of retry settings parameters. See the documentation on
     *           {@see RetrySettings} for example usage.
     * }
     *
     * @return \Google\Cloud\Iam\V1\Policy
     *
     * @throws ApiException if the remote call fails
     *
     * @experimental
     */
    public function getIamPolicy($resource, array $optionalArgs = [])
    {
        $request = new GetIamPolicyRequest();
        $requestParamHeaders = [];
        $request->setResource($resource);
        $requestParamHeaders['resource'] = $resource;
        if (isset($optionalArgs['options'])) {
            $request->setOptions($optionalArgs['options']);
        }

        $requestParams = new RequestParamsHeaderDescriptor(
            $requestParamHeaders
        );
        $optionalArgs['headers'] = isset($optionalArgs['headers'])
            ? array_merge($requestParams->getHeader(), $optionalArgs['headers'])
            : $requestParams->getHeader();
        return $this->startCall(
            'GetIamPolicy',
            Policy::class,
            $optionalArgs,
            $request
        )->wait();
    }

    /**
     * Gets a namespace.
     *
     * Sample code:
     * ```
     * $registrationServiceClient = new RegistrationServiceClient();
     * try {
     *     $formattedName = $registrationServiceClient->namespaceName('[PROJECT]', '[LOCATION]', '[NAMESPACE]');
     *     $response = $registrationServiceClient->getNamespace($formattedName);
     * } finally {
     *     $registrationServiceClient->close();
     * }
     * ```
     *
     * @param string $name         Required. The name of the namespace to retrieve.
     * @param array  $optionalArgs {
     *     Optional.
     *
     *     @type RetrySettings|array $retrySettings
     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
     *           associative array of retry settings parameters. See the documentation on
     *           {@see RetrySettings} for example usage.
     * }
     *
     * @return \Google\Cloud\ServiceDirectory\V1beta1\PBNamespace
     *
     * @throws ApiException if the remote call fails
     *
     * @experimental
     */
    public function getNamespace($name, array $optionalArgs = [])
    {
        $request = new GetNamespaceRequest();
        $requestParamHeaders = [];
        $request->setName($name);
        $requestParamHeaders['name'] = $name;
        $requestParams = new RequestParamsHeaderDescriptor(
            $requestParamHeaders
        );
        $optionalArgs['headers'] = isset($optionalArgs['headers'])
            ? array_merge($requestParams->getHeader(), $optionalArgs['headers'])
            : $requestParams->getHeader();
        return $this->startCall(
            'GetNamespace',
            PBNamespace::class,
            $optionalArgs,
            $request
        )->wait();
    }

    /**
     * Gets a service.
     *
     * Sample code:
     * ```
     * $registrationServiceClient = new RegistrationServiceClient();
     * try {
     *     $formattedName = $registrationServiceClient->serviceName('[PROJECT]', '[LOCATION]', '[NAMESPACE]', '[SERVICE]');
     *     $response = $registrationServiceClient->getService($formattedName);
     * } finally {
     *     $registrationServiceClient->close();
     * }
     * ```
     *
     * @param string $name         Required. The name of the service to get.
     * @param array  $optionalArgs {
     *     Optional.
     *
     *     @type RetrySettings|array $retrySettings
     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
     *           associative array of retry settings parameters. See the documentation on
     *           {@see RetrySettings} for example usage.
     * }
     *
     * @return \Google\Cloud\ServiceDirectory\V1beta1\Service
     *
     * @throws ApiException if the remote call fails
     *
     * @experimental
     */
    public function getService($name, array $optionalArgs = [])
    {
        $request = new GetServiceRequest();
        $requestParamHeaders = [];
        $request->setName($name);
        $requestParamHeaders['name'] = $name;
        $requestParams = new RequestParamsHeaderDescriptor(
            $requestParamHeaders
        );
        $optionalArgs['headers'] = isset($optionalArgs['headers'])
            ? array_merge($requestParams->getHeader(), $optionalArgs['headers'])
            : $requestParams->getHeader();
        return $this->startCall(
            'GetService',
            Service::class,
            $optionalArgs,
            $request
        )->wait();
    }

    /**
     * Lists all endpoints.
     *
     * Sample code:
     * ```
     * $registrationServiceClient = new RegistrationServiceClient();
     * try {
     *     $formattedParent = $registrationServiceClient->serviceName('[PROJECT]', '[LOCATION]', '[NAMESPACE]', '[SERVICE]');
     *     // Iterate over pages of elements
     *     $pagedResponse = $registrationServiceClient->listEndpoints($formattedParent);
     *     foreach ($pagedResponse->iteratePages() as $page) {
     *         foreach ($page as $element) {
     *             // doSomethingWith($element);
     *         }
     *     }
     *     // Alternatively:
     *     // Iterate through all elements
     *     $pagedResponse = $registrationServiceClient->listEndpoints($formattedParent);
     *     foreach ($pagedResponse->iterateAllElements() as $element) {
     *         // doSomethingWith($element);
     *     }
     * } finally {
     *     $registrationServiceClient->close();
     * }
     * ```
     *
     * @param string $parent       Required. The resource name of the service whose endpoints you'd like to
     *                             list.
     * @param array  $optionalArgs {
     *     Optional.
     *
     *     @type int $pageSize
     *           The maximum number of resources contained in the underlying API
     *           response. The API may return fewer values in a page, even if
     *           there are additional values to be retrieved.
     *     @type string $pageToken
     *           A page token is used to specify a page of values to be returned.
     *           If no page token is specified (the default), the first page
     *           of values will be returned. Any page token used here must have
     *           been generated by a previous call to the API.
     *     @type string $filter
     *           Optional. The filter to list results by.
     *
     *           General `filter` string syntax:
     *           `<field> <operator> <value> (<logical connector>)`
     *
     *           *   `<field>` can be `name`, `address`, `port`, or `metadata.<key>` for map
     *           field
     *           *   `<operator>` can be `<`, `>`, `<=`, `>=`, `!=`, `=`, `:`. Of which `:`
     *           means `HAS`, and is roughly the same as `=`
     *           *   `<value>` must be the same data type as field
     *           *   `<logical connector>` can be `AND`, `OR`, `NOT`
     *
     *           Examples of valid filters:
     *
     *           *   `metadata.owner` returns endpoints that have a metadata with the key
     *           `owner`, this is the same as `metadata:owner`
     *           *   `metadata.protocol=gRPC` returns endpoints that have key/value
     *           `protocol=gRPC`
     *           *   `address=192.108.1.105` returns endpoints that have this address
     *           *   `port>8080` returns endpoints that have port number larger than 8080
     *           *
     *           `name>projects/my-project/locations/us-east1/namespaces/my-namespace/services/my-service/endpoints/endpoint-c`
     *           returns endpoints that have name that is alphabetically later than the
     *           string, so "endpoint-e" is returned but "endpoint-a" is not
     *           *   `metadata.owner!=sd AND metadata.foo=bar` returns endpoints that have
     *           `owner` in metadata key but value is not `sd` AND have key/value
     *           `foo=bar`
     *           *   `doesnotexist.foo=bar` returns an empty list. Note that endpoint
     *           doesn't have a field called "doesnotexist". Since the filter does not
     *           match any endpoints, it returns no results
     *
     *           For more information about filtering, see
     *           [API Filtering](https://aip.dev/160).
     *     @type string $orderBy
     *           Optional. The order to list results by.
     *
     *           General `order_by` string syntax: `<field> (<asc|desc>) (,)`
     *
     *           *   `<field>` allows values: `name`, `address`, `port`
     *           *   `<asc|desc>` ascending or descending order by `<field>`. If this is
     *           left blank, `asc` is used
     *
     *           Note that an empty `order_by` string results in default order, which is
     *           order by `name` in ascending order.
     *     @type RetrySettings|array $retrySettings
     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
     *           associative array of retry settings parameters. See the documentation on
     *           {@see RetrySettings} for example usage.
     * }
     *
     * @return \Google\ApiCore\PagedListResponse
     *
     * @throws ApiException if the remote call fails
     *
     * @experimental
     */
    public function listEndpoints($parent, array $optionalArgs = [])
    {
        $request = new ListEndpointsRequest();
        $requestParamHeaders = [];
        $request->setParent($parent);
        $requestParamHeaders['parent'] = $parent;
        if (isset($optionalArgs['pageSize'])) {
            $request->setPageSize($optionalArgs['pageSize']);
        }

        if (isset($optionalArgs['pageToken'])) {
            $request->setPageToken($optionalArgs['pageToken']);
        }

        if (isset($optionalArgs['filter'])) {
            $request->setFilter($optionalArgs['filter']);
        }

        if (isset($optionalArgs['orderBy'])) {
            $request->setOrderBy($optionalArgs['orderBy']);
        }

        $requestParams = new RequestParamsHeaderDescriptor(
            $requestParamHeaders
        );
        $optionalArgs['headers'] = isset($optionalArgs['headers'])
            ? array_merge($requestParams->getHeader(), $optionalArgs['headers'])
            : $requestParams->getHeader();
        return $this->getPagedListResponse(
            'ListEndpoints',
            $optionalArgs,
            ListEndpointsResponse::class,
            $request
        );
    }

    /**
     * Lists all namespaces.
     *
     * Sample code:
     * ```
     * $registrationServiceClient = new RegistrationServiceClient();
     * try {
     *     $formattedParent = $registrationServiceClient->locationName('[PROJECT]', '[LOCATION]');
     *     // Iterate over pages of elements
     *     $pagedResponse = $registrationServiceClient->listNamespaces($formattedParent);
     *     foreach ($pagedResponse->iteratePages() as $page) {
     *         foreach ($page as $element) {
     *             // doSomethingWith($element);
     *         }
     *     }
     *     // Alternatively:
     *     // Iterate through all elements
     *     $pagedResponse = $registrationServiceClient->listNamespaces($formattedParent);
     *     foreach ($pagedResponse->iterateAllElements() as $element) {
     *         // doSomethingWith($element);
     *     }
     * } finally {
     *     $registrationServiceClient->close();
     * }
     * ```
     *
     * @param string $parent       Required. The resource name of the project and location whose namespaces you'd like
     *                             to list.
     * @param array  $optionalArgs {
     *     Optional.
     *
     *     @type int $pageSize
     *           The maximum number of resources contained in the underlying API
     *           response. The API may return fewer values in a page, even if
     *           there are additional values to be retrieved.
     *     @type string $pageToken
     *           A page token is used to specify a page of values to be returned.
     *           If no page token is specified (the default), the first page
     *           of values will be returned. Any page token used here must have
     *           been generated by a previous call to the API.
     *     @type string $filter
     *           Optional. The filter to list results by.
     *
     *           General `filter` string syntax:
     *           `<field> <operator> <value> (<logical connector>)`
     *
     *           *   `<field>` can be `name` or `labels.<key>` for map field
     *           *   `<operator>` can be `<`, `>`, `<=`, `>=`, `!=`, `=`, `:`. Of which `:`
     *           means `HAS`, and is roughly the same as `=`
     *           *   `<value>` must be the same data type as field
     *           *   `<logical connector>` can be `AND`, `OR`, `NOT`
     *
     *           Examples of valid filters:
     *
     *           *   `labels.owner` returns namespaces that have a label with the key
     *           `owner`, this is the same as `labels:owner`
     *           *   `labels.owner=sd` returns namespaces that have key/value `owner=sd`
     *           *   `name>projects/my-project/locations/us-east1/namespaces/namespace-c`
     *           returns namespaces that have name that is alphabetically later than the
     *           string, so "namespace-e" is returned but "namespace-a" is not
     *           *   `labels.owner!=sd AND labels.foo=bar` returns namespaces that have
     *           `owner` in label key but value is not `sd` AND have key/value `foo=bar`
     *           *   `doesnotexist.foo=bar` returns an empty list. Note that namespace
     *           doesn't have a field called "doesnotexist". Since the filter does not
     *           match any namespaces, it returns no results
     *
     *           For more information about filtering, see
     *           [API Filtering](https://aip.dev/160).
     *     @type string $orderBy
     *           Optional. The order to list results by.
     *
     *           General `order_by` string syntax: `<field> (<asc|desc>) (,)`
     *
     *           *   `<field>` allows value: `name`
     *           *   `<asc|desc>` ascending or descending order by `<field>`. If this is
     *           left blank, `asc` is used
     *
     *           Note that an empty `order_by` string results in default order, which is
     *           order by `name` in ascending order.
     *     @type RetrySettings|array $retrySettings
     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
     *           associative array of retry settings parameters. See the documentation on
     *           {@see RetrySettings} for example usage.
     * }
     *
     * @return \Google\ApiCore\PagedListResponse
     *
     * @throws ApiException if the remote call fails
     *
     * @experimental
     */
    public function listNamespaces($parent, array $optionalArgs = [])
    {
        $request = new ListNamespacesRequest();
        $requestParamHeaders = [];
        $request->setParent($parent);
        $requestParamHeaders['parent'] = $parent;
        if (isset($optionalArgs['pageSize'])) {
            $request->setPageSize($optionalArgs['pageSize']);
        }

        if (isset($optionalArgs['pageToken'])) {
            $request->setPageToken($optionalArgs['pageToken']);
        }

        if (isset($optionalArgs['filter'])) {
            $request->setFilter($optionalArgs['filter']);
        }

        if (isset($optionalArgs['orderBy'])) {
            $request->setOrderBy($optionalArgs['orderBy']);
        }

        $requestParams = new RequestParamsHeaderDescriptor(
            $requestParamHeaders
        );
        $optionalArgs['headers'] = isset($optionalArgs['headers'])
            ? array_merge($requestParams->getHeader(), $optionalArgs['headers'])
            : $requestParams->getHeader();
        return $this->getPagedListResponse(
            'ListNamespaces',
            $optionalArgs,
            ListNamespacesResponse::class,
            $request
        );
    }

    /**
     * Lists all services belonging to a namespace.
     *
     * Sample code:
     * ```
     * $registrationServiceClient = new RegistrationServiceClient();
     * try {
     *     $formattedParent = $registrationServiceClient->namespaceName('[PROJECT]', '[LOCATION]', '[NAMESPACE]');
     *     // Iterate over pages of elements
     *     $pagedResponse = $registrationServiceClient->listServices($formattedParent);
     *     foreach ($pagedResponse->iteratePages() as $page) {
     *         foreach ($page as $element) {
     *             // doSomethingWith($element);
     *         }
     *     }
     *     // Alternatively:
     *     // Iterate through all elements
     *     $pagedResponse = $registrationServiceClient->listServices($formattedParent);
     *     foreach ($pagedResponse->iterateAllElements() as $element) {
     *         // doSomethingWith($element);
     *     }
     * } finally {
     *     $registrationServiceClient->close();
     * }
     * ```
     *
     * @param string $parent       Required. The resource name of the namespace whose services you'd
     *                             like to list.
     * @param array  $optionalArgs {
     *     Optional.
     *
     *     @type int $pageSize
     *           The maximum number of resources contained in the underlying API
     *           response. The API may return fewer values in a page, even if
     *           there are additional values to be retrieved.
     *     @type string $pageToken
     *           A page token is used to specify a page of values to be returned.
     *           If no page token is specified (the default), the first page
     *           of values will be returned. Any page token used here must have
     *           been generated by a previous call to the API.
     *     @type string $filter
     *           Optional. The filter to list results by.
     *
     *           General `filter` string syntax:
     *           `<field> <operator> <value> (<logical connector>)`
     *
     *           *   `<field>` can be `name` or `metadata.<key>` for map field
     *           *   `<operator>` can be `<`, `>`, `<=`, `>=`, `!=`, `=`, `:`. Of which `:`
     *           means `HAS`, and is roughly the same as `=`
     *           *   `<value>` must be the same data type as field
     *           *   `<logical connector>` can be `AND`, `OR`, `NOT`
     *
     *           Examples of valid filters:
     *
     *           *   `metadata.owner` returns services that have a metadata with the key
     *           `owner`, this is the same as `metadata:owner`
     *           *   `metadata.protocol=gRPC` returns services that have key/value
     *           `protocol=gRPC`
     *           *
     *           `name>projects/my-project/locations/us-east1/namespaces/my-namespace/services/service-c`
     *           returns services that have name that is alphabetically later than the
     *           string, so "service-e" is returned but "service-a" is not
     *           *   `metadata.owner!=sd AND metadata.foo=bar` returns services that have
     *           `owner` in metadata key but value is not `sd` AND have key/value
     *           `foo=bar`
     *           *   `doesnotexist.foo=bar` returns an empty list. Note that service
     *           doesn't have a field called "doesnotexist". Since the filter does not
     *           match any services, it returns no results
     *
     *           For more information about filtering, see
     *           [API Filtering](https://aip.dev/160).
     *     @type string $orderBy
     *           Optional. The order to list results by.
     *
     *           General `order_by` string syntax: `<field> (<asc|desc>) (,)`
     *
     *           *   `<field>` allows value: `name`
     *           *   `<asc|desc>` ascending or descending order by `<field>`. If this is
     *           left blank, `asc` is used
     *
     *           Note that an empty `order_by` string results in default order, which is
     *           order by `name` in ascending order.
     *     @type RetrySettings|array $retrySettings
     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
     *           associative array of retry settings parameters. See the documentation on
     *           {@see RetrySettings} for example usage.
     * }
     *
     * @return \Google\ApiCore\PagedListResponse
     *
     * @throws ApiException if the remote call fails
     *
     * @experimental
     */
    public function listServices($parent, array $optionalArgs = [])
    {
        $request = new ListServicesRequest();
        $requestParamHeaders = [];
        $request->setParent($parent);
        $requestParamHeaders['parent'] = $parent;
        if (isset($optionalArgs['pageSize'])) {
            $request->setPageSize($optionalArgs['pageSize']);
        }

        if (isset($optionalArgs['pageToken'])) {
            $request->setPageToken($optionalArgs['pageToken']);
        }

        if (isset($optionalArgs['filter'])) {
            $request->setFilter($optionalArgs['filter']);
        }

        if (isset($optionalArgs['orderBy'])) {
            $request->setOrderBy($optionalArgs['orderBy']);
        }

        $requestParams = new RequestParamsHeaderDescriptor(
            $requestParamHeaders
        );
        $optionalArgs['headers'] = isset($optionalArgs['headers'])
            ? array_merge($requestParams->getHeader(), $optionalArgs['headers'])
            : $requestParams->getHeader();
        return $this->getPagedListResponse(
            'ListServices',
            $optionalArgs,
            ListServicesResponse::class,
            $request
        );
    }

    /**
     * Sets the IAM Policy for a resource (namespace or service only).
     *
     * Sample code:
     * ```
     * $registrationServiceClient = new RegistrationServiceClient();
     * try {
     *     $resource = 'resource';
     *     $policy = new Policy();
     *     $response = $registrationServiceClient->setIamPolicy($resource, $policy);
     * } finally {
     *     $registrationServiceClient->close();
     * }
     * ```
     *
     * @param string $resource     REQUIRED: The resource for which the policy is being specified.
     *                             See the operation documentation for the appropriate value for this field.
     * @param Policy $policy       REQUIRED: The complete policy to be applied to the `resource`. The size of
     *                             the policy is limited to a few 10s of KB. An empty policy is a
     *                             valid policy but certain Cloud Platform services (such as Projects)
     *                             might reject them.
     * @param array  $optionalArgs {
     *     Optional.
     *
     *     @type FieldMask $updateMask
     *           OPTIONAL: A FieldMask specifying which fields of the policy to modify. Only
     *           the fields in the mask will be modified. If no mask is provided, the
     *           following default mask is used:
     *
     *           `paths: "bindings, etag"`
     *     @type RetrySettings|array $retrySettings
     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
     *           associative array of retry settings parameters. See the documentation on
     *           {@see RetrySettings} for example usage.
     * }
     *
     * @return \Google\Cloud\Iam\V1\Policy
     *
     * @throws ApiException if the remote call fails
     *
     * @experimental
     */
    public function setIamPolicy($resource, $policy, array $optionalArgs = [])
    {
        $request = new SetIamPolicyRequest();
        $requestParamHeaders = [];
        $request->setResource($resource);
        $request->setPolicy($policy);
        $requestParamHeaders['resource'] = $resource;
        if (isset($optionalArgs['updateMask'])) {
            $request->setUpdateMask($optionalArgs['updateMask']);
        }

        $requestParams = new RequestParamsHeaderDescriptor(
            $requestParamHeaders
        );
        $optionalArgs['headers'] = isset($optionalArgs['headers'])
            ? array_merge($requestParams->getHeader(), $optionalArgs['headers'])
            : $requestParams->getHeader();
        return $this->startCall(
            'SetIamPolicy',
            Policy::class,
            $optionalArgs,
            $request
        )->wait();
    }

    /**
     * Tests IAM permissions for a resource (namespace or service only).
     *
     * Sample code:
     * ```
     * $registrationServiceClient = new RegistrationServiceClient();
     * try {
     *     $resource = 'resource';
     *     $permissions = [];
     *     $response = $registrationServiceClient->testIamPermissions($resource, $permissions);
     * } finally {
     *     $registrationServiceClient->close();
     * }
     * ```
     *
     * @param string   $resource     REQUIRED: The resource for which the policy detail is being requested.
     *                               See the operation documentation for the appropriate value for this field.
     * @param string[] $permissions  The set of permissions to check for the `resource`. Permissions with
     *                               wildcards (such as '*' or 'storage.*') are not allowed. For more
     *                               information see
     *                               [IAM Overview](https://cloud.google.com/iam/docs/overview#permissions).
     * @param array    $optionalArgs {
     *     Optional.
     *
     *     @type RetrySettings|array $retrySettings
     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
     *           associative array of retry settings parameters. See the documentation on
     *           {@see RetrySettings} for example usage.
     * }
     *
     * @return \Google\Cloud\Iam\V1\TestIamPermissionsResponse
     *
     * @throws ApiException if the remote call fails
     *
     * @experimental
     */
    public function testIamPermissions(
        $resource,
        $permissions,
        array $optionalArgs = []
    ) {
        $request = new TestIamPermissionsRequest();
        $requestParamHeaders = [];
        $request->setResource($resource);
        $request->setPermissions($permissions);
        $requestParamHeaders['resource'] = $resource;
        $requestParams = new RequestParamsHeaderDescriptor(
            $requestParamHeaders
        );
        $optionalArgs['headers'] = isset($optionalArgs['headers'])
            ? array_merge($requestParams->getHeader(), $optionalArgs['headers'])
            : $requestParams->getHeader();
        return $this->startCall(
            'TestIamPermissions',
            TestIamPermissionsResponse::class,
            $optionalArgs,
            $request
        )->wait();
    }

    /**
     * Updates an endpoint.
     *
     * Sample code:
     * ```
     * $registrationServiceClient = new RegistrationServiceClient();
     * try {
     *     $endpoint = new Endpoint();
     *     $updateMask = new FieldMask();
     *     $response = $registrationServiceClient->updateEndpoint($endpoint, $updateMask);
     * } finally {
     *     $registrationServiceClient->close();
     * }
     * ```
     *
     * @param Endpoint  $endpoint     Required. The updated endpoint.
     * @param FieldMask $updateMask   Required. List of fields to be updated in this request.
     * @param array     $optionalArgs {
     *     Optional.
     *
     *     @type RetrySettings|array $retrySettings
     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
     *           associative array of retry settings parameters. See the documentation on
     *           {@see RetrySettings} for example usage.
     * }
     *
     * @return \Google\Cloud\ServiceDirectory\V1beta1\Endpoint
     *
     * @throws ApiException if the remote call fails
     *
     * @experimental
     */
    public function updateEndpoint(
        $endpoint,
        $updateMask,
        array $optionalArgs = []
    ) {
        $request = new UpdateEndpointRequest();
        $requestParamHeaders = [];
        $request->setEndpoint($endpoint);
        $request->setUpdateMask($updateMask);
        $requestParamHeaders['endpoint.name'] = $endpoint->getName();
        $requestParams = new RequestParamsHeaderDescriptor(
            $requestParamHeaders
        );
        $optionalArgs['headers'] = isset($optionalArgs['headers'])
            ? array_merge($requestParams->getHeader(), $optionalArgs['headers'])
            : $requestParams->getHeader();
        return $this->startCall(
            'UpdateEndpoint',
            Endpoint::class,
            $optionalArgs,
            $request
        )->wait();
    }

    /**
     * Updates a namespace.
     *
     * Sample code:
     * ```
     * $registrationServiceClient = new RegistrationServiceClient();
     * try {
     *     $namespace = new PBNamespace();
     *     $updateMask = new FieldMask();
     *     $response = $registrationServiceClient->updateNamespace($namespace, $updateMask);
     * } finally {
     *     $registrationServiceClient->close();
     * }
     * ```
     *
     * @param PBNamespace $namespace    Required. The updated namespace.
     * @param FieldMask   $updateMask   Required. List of fields to be updated in this request.
     * @param array       $optionalArgs {
     *     Optional.
     *
     *     @type RetrySettings|array $retrySettings
     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
     *           associative array of retry settings parameters. See the documentation on
     *           {@see RetrySettings} for example usage.
     * }
     *
     * @return \Google\Cloud\ServiceDirectory\V1beta1\PBNamespace
     *
     * @throws ApiException if the remote call fails
     *
     * @experimental
     */
    public function updateNamespace(
        $namespace,
        $updateMask,
        array $optionalArgs = []
    ) {
        $request = new UpdateNamespaceRequest();
        $requestParamHeaders = [];
        $request->setNamespace($namespace);
        $request->setUpdateMask($updateMask);
        $requestParamHeaders['namespace.name'] = $namespace->getName();
        $requestParams = new RequestParamsHeaderDescriptor(
            $requestParamHeaders
        );
        $optionalArgs['headers'] = isset($optionalArgs['headers'])
            ? array_merge($requestParams->getHeader(), $optionalArgs['headers'])
            : $requestParams->getHeader();
        return $this->startCall(
            'UpdateNamespace',
            PBNamespace::class,
            $optionalArgs,
            $request
        )->wait();
    }

    /**
     * Updates a service.
     *
     * Sample code:
     * ```
     * $registrationServiceClient = new RegistrationServiceClient();
     * try {
     *     $service = new Service();
     *     $updateMask = new FieldMask();
     *     $response = $registrationServiceClient->updateService($service, $updateMask);
     * } finally {
     *     $registrationServiceClient->close();
     * }
     * ```
     *
     * @param Service   $service      Required. The updated service.
     * @param FieldMask $updateMask   Required. List of fields to be updated in this request.
     * @param array     $optionalArgs {
     *     Optional.
     *
     *     @type RetrySettings|array $retrySettings
     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
     *           associative array of retry settings parameters. See the documentation on
     *           {@see RetrySettings} for example usage.
     * }
     *
     * @return \Google\Cloud\ServiceDirectory\V1beta1\Service
     *
     * @throws ApiException if the remote call fails
     *
     * @experimental
     */
    public function updateService(
        $service,
        $updateMask,
        array $optionalArgs = []
    ) {
        $request = new UpdateServiceRequest();
        $requestParamHeaders = [];
        $request->setService($service);
        $request->setUpdateMask($updateMask);
        $requestParamHeaders['service.name'] = $service->getName();
        $requestParams = new RequestParamsHeaderDescriptor(
            $requestParamHeaders
        );
        $optionalArgs['headers'] = isset($optionalArgs['headers'])
            ? array_merge($requestParams->getHeader(), $optionalArgs['headers'])
            : $requestParams->getHeader();
        return $this->startCall(
            'UpdateService',
            Service::class,
            $optionalArgs,
            $request
        )->wait();
    }
}