text: # -*- coding: utf-8 -*-
  # 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
  #
  #     http://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.
  #
  from collections import OrderedDict
  import functools
  import re
  from typing import Dict, Optional, Sequence, Tuple, Type, Union
  import pkg_resources
  
  from google.api_core.client_options import ClientOptions
  from google.api_core import exceptions as core_exceptions
  from google.api_core import gapic_v1
  from google.api_core import retry as retries
  from google.auth import credentials as ga_credentials  # type: ignore
  from google.oauth2 import service_account  # type: ignore
  
  try:
      OptionalRetry = Union[retries.Retry, gapic_v1.method._MethodDefault]
  except AttributeError:  # pragma: NO COVER
      OptionalRetry = Union[retries.Retry, object]  # type: ignore
  
  from google.api_core import operation  # type: ignore
  from google.api_core import operation_async  # type: ignore
  from google.cloud.memcache_v1beta2.services.cloud_memcache import pagers
  from google.cloud.memcache_v1beta2.types import cloud_memcache
  from google.protobuf import empty_pb2  # type: ignore
  from google.protobuf import field_mask_pb2  # type: ignore
  from google.protobuf import timestamp_pb2  # type: ignore
  from .transports.base import CloudMemcacheTransport, DEFAULT_CLIENT_INFO
  from .transports.grpc_asyncio import CloudMemcacheGrpcAsyncIOTransport
  from .client import CloudMemcacheClient
  
  
  class CloudMemcacheAsyncClient:
      """Configures and manages Cloud Memorystore for Memcached instances.
  
      The ``memcache.googleapis.com`` service implements the Google Cloud
      Memorystore for Memcached API and defines the following resource
      model for managing Memorystore Memcached (also called Memcached
      below) instances:
  
      -  The service works with a collection of cloud projects, named:
         ``/projects/*``
      -  Each project has a collection of available locations, named:
         ``/locations/*``
      -  Each location has a collection of Memcached instances, named:
         ``/instances/*``
      -  As such, Memcached instances are resources of the form:
         ``/projects/{project_id}/locations/{location_id}/instances/{instance_id}``
  
      Note that location_id must be a GCP ``region``; for example:
  
      -  ``projects/my-memcached-project/locations/us-central1/instances/my-memcached``
      """
  
      _client: CloudMemcacheClient
  
      DEFAULT_ENDPOINT = CloudMemcacheClient.DEFAULT_ENDPOINT
      DEFAULT_MTLS_ENDPOINT = CloudMemcacheClient.DEFAULT_MTLS_ENDPOINT
  
      instance_path = staticmethod(CloudMemcacheClient.instance_path)
      parse_instance_path = staticmethod(CloudMemcacheClient.parse_instance_path)
      common_billing_account_path = staticmethod(
          CloudMemcacheClient.common_billing_account_path
      )
      parse_common_billing_account_path = staticmethod(
          CloudMemcacheClient.parse_common_billing_account_path
      )
      common_folder_path = staticmethod(CloudMemcacheClient.common_folder_path)
      parse_common_folder_path = staticmethod(
          CloudMemcacheClient.parse_common_folder_path
      )
      common_organization_path = staticmethod(
          CloudMemcacheClient.common_organization_path
      )
      parse_common_organization_path = staticmethod(
          CloudMemcacheClient.parse_common_organization_path
      )
      common_project_path = staticmethod(CloudMemcacheClient.common_project_path)
      parse_common_project_path = staticmethod(
          CloudMemcacheClient.parse_common_project_path
      )
      common_location_path = staticmethod(CloudMemcacheClient.common_location_path)
      parse_common_location_path = staticmethod(
          CloudMemcacheClient.parse_common_location_path
      )
  
      @classmethod
      def from_service_account_info(cls, info: dict, *args, **kwargs):
          """Creates an instance of this client using the provided credentials
              info.
  
          Args:
              info (dict): The service account private key info.
              args: Additional arguments to pass to the constructor.
              kwargs: Additional arguments to pass to the constructor.
  
          Returns:
              CloudMemcacheAsyncClient: The constructed client.
          """
          return CloudMemcacheClient.from_service_account_info.__func__(CloudMemcacheAsyncClient, info, *args, **kwargs)  # type: ignore
  
      @classmethod
      def from_service_account_file(cls, filename: str, *args, **kwargs):
          """Creates an instance of this client using the provided credentials
              file.
  
          Args:
              filename (str): The path to the service account private key json
                  file.
              args: Additional arguments to pass to the constructor.
              kwargs: Additional arguments to pass to the constructor.
  
          Returns:
              CloudMemcacheAsyncClient: The constructed client.
          """
          return CloudMemcacheClient.from_service_account_file.__func__(CloudMemcacheAsyncClient, filename, *args, **kwargs)  # type: ignore
  
      from_service_account_json = from_service_account_file
  
      @classmethod
      def get_mtls_endpoint_and_cert_source(
          cls, client_options: Optional[ClientOptions] = None
      ):
          """Return the API endpoint and client cert source for mutual TLS.
  
          The client cert source is determined in the following order:
          (1) if `GOOGLE_API_USE_CLIENT_CERTIFICATE` environment variable is not "true", the
          client cert source is None.
          (2) if `client_options.client_cert_source` is provided, use the provided one; if the
          default client cert source exists, use the default one; otherwise the client cert
          source is None.
  
          The API endpoint is determined in the following order:
          (1) if `client_options.api_endpoint` if provided, use the provided one.
          (2) if `GOOGLE_API_USE_CLIENT_CERTIFICATE` environment variable is "always", use the
          default mTLS endpoint; if the environment variabel is "never", use the default API
          endpoint; otherwise if client cert source exists, use the default mTLS endpoint, otherwise
          use the default API endpoint.
  
          More details can be found at https://google.aip.dev/auth/4114.
  
          Args:
              client_options (google.api_core.client_options.ClientOptions): Custom options for the
                  client. Only the `api_endpoint` and `client_cert_source` properties may be used
                  in this method.
  
          Returns:
              Tuple[str, Callable[[], Tuple[bytes, bytes]]]: returns the API endpoint and the
                  client cert source to use.
  
          Raises:
              google.auth.exceptions.MutualTLSChannelError: If any errors happen.
          """
          return CloudMemcacheClient.get_mtls_endpoint_and_cert_source(client_options)  # type: ignore
  
      @property
      def transport(self) -> CloudMemcacheTransport:
          """Returns the transport used by the client instance.
  
          Returns:
              CloudMemcacheTransport: The transport used by the client instance.
          """
          return self._client.transport
  
      get_transport_class = functools.partial(
          type(CloudMemcacheClient).get_transport_class, type(CloudMemcacheClient)
      )
  
      def __init__(
          self,
          *,
          credentials: ga_credentials.Credentials = None,
          transport: Union[str, CloudMemcacheTransport] = "grpc_asyncio",
          client_options: ClientOptions = None,
          client_info: gapic_v1.client_info.ClientInfo = DEFAULT_CLIENT_INFO,
      ) -> None:
          """Instantiates the cloud memcache client.
  
          Args:
              credentials (Optional[google.auth.credentials.Credentials]): The
                  authorization credentials to attach to requests. These
                  credentials identify the application to the service; if none
                  are specified, the client will attempt to ascertain the
                  credentials from the environment.
              transport (Union[str, ~.CloudMemcacheTransport]): The
                  transport to use. If set to None, a transport is chosen
                  automatically.
              client_options (ClientOptions): Custom options for the client. It
                  won't take effect if a ``transport`` instance is provided.
                  (1) The ``api_endpoint`` property can be used to override the
                  default endpoint provided by the client. GOOGLE_API_USE_MTLS_ENDPOINT
                  environment variable can also be used to override the endpoint:
                  "always" (always use the default mTLS endpoint), "never" (always
                  use the default regular endpoint) and "auto" (auto switch to the
                  default mTLS endpoint if client certificate is present, this is
                  the default value). However, the ``api_endpoint`` property takes
                  precedence if provided.
                  (2) If GOOGLE_API_USE_CLIENT_CERTIFICATE environment variable
                  is "true", then the ``client_cert_source`` property can be used
                  to provide client certificate for mutual TLS transport. If
                  not provided, the default SSL client certificate will be used if
                  present. If GOOGLE_API_USE_CLIENT_CERTIFICATE is "false" or not
                  set, no client certificate will be used.
  
          Raises:
              google.auth.exceptions.MutualTlsChannelError: If mutual TLS transport
                  creation failed for any reason.
          """
          self._client = CloudMemcacheClient(
              credentials=credentials,
              transport=transport,
              client_options=client_options,
              client_info=client_info,
          )
  
      async def list_instances(
          self,
          request: Union[cloud_memcache.ListInstancesRequest, dict] = None,
          *,
          parent: str = None,
          retry: OptionalRetry = gapic_v1.method.DEFAULT,
          timeout: float = None,
          metadata: Sequence[Tuple[str, str]] = (),
      ) -> pagers.ListInstancesAsyncPager:
          r"""Lists Instances in a given location.
  
          Args:
              request (Union[google.cloud.memcache_v1beta2.types.ListInstancesRequest, dict]):
                  The request object. Request for
                  [ListInstances][google.cloud.memcache.v1beta2.CloudMemcache.ListInstances].
              parent (:class:`str`):
                  Required. The resource name of the instance location
                  using the form:
                  ``projects/{project_id}/locations/{location_id}`` where
                  ``location_id`` refers to a GCP region
  
                  This corresponds to the ``parent`` field
                  on the ``request`` instance; if ``request`` is provided, this
                  should not be set.
              retry (google.api_core.retry.Retry): Designation of what errors, if any,
                  should be retried.
              timeout (float): The timeout for this request.
              metadata (Sequence[Tuple[str, str]]): Strings which should be
                  sent along with the request as metadata.
  
          Returns:
              google.cloud.memcache_v1beta2.services.cloud_memcache.pagers.ListInstancesAsyncPager:
                  Response for
                  [ListInstances][google.cloud.memcache.v1beta2.CloudMemcache.ListInstances].
  
                  Iterating over this object will yield results and
                  resolve additional pages automatically.
  
          """
          # Create or coerce a protobuf request object.
          # Sanity check: If we got a request object, we should *not* have
          # gotten any keyword arguments that map to the request.
          has_flattened_params = any([parent])
          if request is not None and has_flattened_params:
              raise ValueError(
                  "If the `request` argument is set, then none of "
                  "the individual field arguments should be set."
              )
  
          request = cloud_memcache.ListInstancesRequest(request)
  
          # If we have keyword arguments corresponding to fields on the
          # request, apply these.
          if parent is not None:
              request.parent = parent
  
          # Wrap the RPC method; this adds retry and timeout information,
          # and friendly error handling.
          rpc = gapic_v1.method_async.wrap_method(
              self._client._transport.list_instances,
              default_timeout=1200.0,
              client_info=DEFAULT_CLIENT_INFO,
          )
  
          # Certain fields should be provided within the metadata header;
          # add these here.
          metadata = tuple(metadata) + (
              gapic_v1.routing_header.to_grpc_metadata((("parent", request.parent),)),
          )
  
          # Send the request.
          response = await rpc(request, retry=retry, timeout=timeout, metadata=metadata,)
  
          # This method is paged; wrap the response in a pager, which provides
          # an `__aiter__` convenience method.
          response = pagers.ListInstancesAsyncPager(
              method=rpc, request=request, response=response, metadata=metadata,
          )
  
          # Done; return the response.
          return response
  
      async def get_instance(
          self,
          request: Union[cloud_memcache.GetInstanceRequest, dict] = None,
          *,
          name: str = None,
          retry: OptionalRetry = gapic_v1.method.DEFAULT,
          timeout: float = None,
          metadata: Sequence[Tuple[str, str]] = (),
      ) -> cloud_memcache.Instance:
          r"""Gets details of a single Instance.
  
          Args:
              request (Union[google.cloud.memcache_v1beta2.types.GetInstanceRequest, dict]):
                  The request object. Request for
                  [GetInstance][google.cloud.memcache.v1beta2.CloudMemcache.GetInstance].
              name (:class:`str`):
                  Required. Memcached instance resource name in the
                  format:
                  ``projects/{project_id}/locations/{location_id}/instances/{instance_id}``
                  where ``location_id`` refers to a GCP region
  
                  This corresponds to the ``name`` field
                  on the ``request`` instance; if ``request`` is provided, this
                  should not be set.
              retry (google.api_core.retry.Retry): Designation of what errors, if any,
                  should be retried.
              timeout (float): The timeout for this request.
              metadata (Sequence[Tuple[str, str]]): Strings which should be
                  sent along with the request as metadata.
  
          Returns:
              google.cloud.memcache_v1beta2.types.Instance:
                  A Memorystore for Memcached instance
          """
          # Create or coerce a protobuf request object.
          # Sanity check: If we got a request object, we should *not* have
          # gotten any keyword arguments that map to the request.
          has_flattened_params = any([name])
          if request is not None and has_flattened_params:
              raise ValueError(
                  "If the `request` argument is set, then none of "
                  "the individual field arguments should be set."
              )
  
          request = cloud_memcache.GetInstanceRequest(request)
  
          # If we have keyword arguments corresponding to fields on the
          # request, apply these.
          if name is not None:
              request.name = name
  
          # Wrap the RPC method; this adds retry and timeout information,
          # and friendly error handling.
          rpc = gapic_v1.method_async.wrap_method(
              self._client._transport.get_instance,
              default_timeout=1200.0,
              client_info=DEFAULT_CLIENT_INFO,
          )
  
          # Certain fields should be provided within the metadata header;
          # add these here.
          metadata = tuple(metadata) + (
              gapic_v1.routing_header.to_grpc_metadata((("name", request.name),)),
          )
  
          # Send the request.
          response = await rpc(request, retry=retry, timeout=timeout, metadata=metadata,)
  
          # Done; return the response.
          return response
  
      async def create_instance(
          self,
          request: Union[cloud_memcache.CreateInstanceRequest, dict] = None,
          *,
          parent: str = None,
          instance_id: str = None,
          resource: cloud_memcache.Instance = None,
          retry: OptionalRetry = gapic_v1.method.DEFAULT,
          timeout: float = None,
          metadata: Sequence[Tuple[str, str]] = (),
      ) -> operation_async.AsyncOperation:
          r"""Creates a new Instance in a given location.
  
          Args:
              request (Union[google.cloud.memcache_v1beta2.types.CreateInstanceRequest, dict]):
                  The request object. Request for
                  [CreateInstance][google.cloud.memcache.v1beta2.CloudMemcache.CreateInstance].
              parent (:class:`str`):
                  Required. The resource name of the instance location
                  using the form:
                  ``projects/{project_id}/locations/{location_id}`` where
                  ``location_id`` refers to a GCP region
  
                  This corresponds to the ``parent`` field
                  on the ``request`` instance; if ``request`` is provided, this
                  should not be set.
              instance_id (:class:`str`):
                  Required. The logical name of the Memcached instance in
                  the user project with the following restrictions:
  
                  -  Must contain only lowercase letters, numbers, and
                     hyphens.
                  -  Must start with a letter.
                  -  Must be between 1-40 characters.
                  -  Must end with a number or a letter.
                  -  Must be unique within the user project / location.
  
                  If any of the above are not met, the API raises an
                  invalid argument error.
  
                  This corresponds to the ``instance_id`` field
                  on the ``request`` instance; if ``request`` is provided, this
                  should not be set.
              resource (:class:`google.cloud.memcache_v1beta2.types.Instance`):
                  Required. A Memcached [Instance] resource
                  This corresponds to the ``resource`` field
                  on the ``request`` instance; if ``request`` is provided, this
                  should not be set.
              retry (google.api_core.retry.Retry): Designation of what errors, if any,
                  should be retried.
              timeout (float): The timeout for this request.
              metadata (Sequence[Tuple[str, str]]): Strings which should be
                  sent along with the request as metadata.
  
          Returns:
              google.api_core.operation_async.AsyncOperation:
                  An object representing a long-running operation.
  
                  The result type for the operation will be
                  :class:`google.cloud.memcache_v1beta2.types.Instance` A
                  Memorystore for Memcached instance
  
          """
          # Create or coerce a protobuf request object.
          # Sanity check: If we got a request object, we should *not* have
          # gotten any keyword arguments that map to the request.
          has_flattened_params = any([parent, instance_id, resource])
          if request is not None and has_flattened_params:
              raise ValueError(
                  "If the `request` argument is set, then none of "
                  "the individual field arguments should be set."
              )
  
          request = cloud_memcache.CreateInstanceRequest(request)
  
          # If we have keyword arguments corresponding to fields on the
          # request, apply these.
          if parent is not None:
              request.parent = parent
          if instance_id is not None:
              request.instance_id = instance_id
          if resource is not None:
              request.resource = resource
  
          # Wrap the RPC method; this adds retry and timeout information,
          # and friendly error handling.
          rpc = gapic_v1.method_async.wrap_method(
              self._client._transport.create_instance,
              default_timeout=1200.0,
              client_info=DEFAULT_CLIENT_INFO,
          )
  
          # Certain fields should be provided within the metadata header;
          # add these here.
          metadata = tuple(metadata) + (
              gapic_v1.routing_header.to_grpc_metadata((("parent", request.parent),)),
          )
  
          # Send the request.
          response = await rpc(request, retry=retry, timeout=timeout, metadata=metadata,)
  
          # Wrap the response in an operation future.
          response = operation_async.from_gapic(
              response,
              self._client._transport.operations_client,
              cloud_memcache.Instance,
              metadata_type=cloud_memcache.OperationMetadata,
          )
  
          # Done; return the response.
          return response
  
      async def update_instance(
          self,
          request: Union[cloud_memcache.UpdateInstanceRequest, dict] = None,
          *,
          update_mask: field_mask_pb2.FieldMask = None,
          resource: cloud_memcache.Instance = None,
          retry: OptionalRetry = gapic_v1.method.DEFAULT,
          timeout: float = None,
          metadata: Sequence[Tuple[str, str]] = (),
      ) -> operation_async.AsyncOperation:
          r"""Updates an existing Instance in a given project and
          location.
  
          Args:
              request (Union[google.cloud.memcache_v1beta2.types.UpdateInstanceRequest, dict]):
                  The request object. Request for
                  [UpdateInstance][google.cloud.memcache.v1beta2.CloudMemcache.UpdateInstance].
              update_mask (:class:`google.protobuf.field_mask_pb2.FieldMask`):
                  Required. Mask of fields to update.
  
                  -  ``displayName``
  
                  This corresponds to the ``update_mask`` field
                  on the ``request`` instance; if ``request`` is provided, this
                  should not be set.
              resource (:class:`google.cloud.memcache_v1beta2.types.Instance`):
                  Required. A Memcached [Instance] resource. Only fields
                  specified in update_mask are updated.
  
                  This corresponds to the ``resource`` field
                  on the ``request`` instance; if ``request`` is provided, this
                  should not be set.
              retry (google.api_core.retry.Retry): Designation of what errors, if any,
                  should be retried.
              timeout (float): The timeout for this request.
              metadata (Sequence[Tuple[str, str]]): Strings which should be
                  sent along with the request as metadata.
  
          Returns:
              google.api_core.operation_async.AsyncOperation:
                  An object representing a long-running operation.
  
                  The result type for the operation will be
                  :class:`google.cloud.memcache_v1beta2.types.Instance` A
                  Memorystore for Memcached instance
  
          """
          # Create or coerce a protobuf request object.
          # Sanity check: If we got a request object, we should *not* have
          # gotten any keyword arguments that map to the request.
          has_flattened_params = any([update_mask, resource])
          if request is not None and has_flattened_params:
              raise ValueError(
                  "If the `request` argument is set, then none of "
                  "the individual field arguments should be set."
              )
  
          request = cloud_memcache.UpdateInstanceRequest(request)
  
          # If we have keyword arguments corresponding to fields on the
          # request, apply these.
          if update_mask is not None:
              request.update_mask = update_mask
          if resource is not None:
              request.resource = resource
  
          # Wrap the RPC method; this adds retry and timeout information,
          # and friendly error handling.
          rpc = gapic_v1.method_async.wrap_method(
              self._client._transport.update_instance,
              default_timeout=1200.0,
              client_info=DEFAULT_CLIENT_INFO,
          )
  
          # Certain fields should be provided within the metadata header;
          # add these here.
          metadata = tuple(metadata) + (
              gapic_v1.routing_header.to_grpc_metadata(
                  (("resource.name", request.resource.name),)
              ),
          )
  
          # Send the request.
          response = await rpc(request, retry=retry, timeout=timeout, metadata=metadata,)
  
          # Wrap the response in an operation future.
          response = operation_async.from_gapic(
              response,
              self._client._transport.operations_client,
              cloud_memcache.Instance,
              metadata_type=cloud_memcache.OperationMetadata,
          )
  
          # Done; return the response.
          return response
  
      async def update_parameters(
          self,
          request: Union[cloud_memcache.UpdateParametersRequest, dict] = None,
          *,
          name: str = None,
          update_mask: field_mask_pb2.FieldMask = None,
          parameters: cloud_memcache.MemcacheParameters = None,
          retry: OptionalRetry = gapic_v1.method.DEFAULT,
          timeout: float = None,
          metadata: Sequence[Tuple[str, str]] = (),
      ) -> operation_async.AsyncOperation:
          r"""Updates the defined Memcached parameters for an existing
          instance. This method only stages the parameters, it must be
          followed by ``ApplyParameters`` to apply the parameters to nodes
          of the Memcached instance.
  
          Args:
              request (Union[google.cloud.memcache_v1beta2.types.UpdateParametersRequest, dict]):
                  The request object. Request for
                  [UpdateParameters][google.cloud.memcache.v1beta2.CloudMemcache.UpdateParameters].
              name (:class:`str`):
                  Required. Resource name of the
                  Memcached instance for which the
                  parameters should be updated.
  
                  This corresponds to the ``name`` field
                  on the ``request`` instance; if ``request`` is provided, this
                  should not be set.
              update_mask (:class:`google.protobuf.field_mask_pb2.FieldMask`):
                  Required. Mask of fields to update.
                  This corresponds to the ``update_mask`` field
                  on the ``request`` instance; if ``request`` is provided, this
                  should not be set.
              parameters (:class:`google.cloud.memcache_v1beta2.types.MemcacheParameters`):
                  The parameters to apply to the
                  instance.
  
                  This corresponds to the ``parameters`` field
                  on the ``request`` instance; if ``request`` is provided, this
                  should not be set.
              retry (google.api_core.retry.Retry): Designation of what errors, if any,
                  should be retried.
              timeout (float): The timeout for this request.
              metadata (Sequence[Tuple[str, str]]): Strings which should be
                  sent along with the request as metadata.
  
          Returns:
              google.api_core.operation_async.AsyncOperation:
                  An object representing a long-running operation.
  
                  The result type for the operation will be
                  :class:`google.cloud.memcache_v1beta2.types.Instance` A
                  Memorystore for Memcached instance
  
          """
          # Create or coerce a protobuf request object.
          # Sanity check: If we got a request object, we should *not* have
          # gotten any keyword arguments that map to the request.
          has_flattened_params = any([name, update_mask, parameters])
          if request is not None and has_flattened_params:
              raise ValueError(
                  "If the `request` argument is set, then none of "
                  "the individual field arguments should be set."
              )
  
          request = cloud_memcache.UpdateParametersRequest(request)
  
          # If we have keyword arguments corresponding to fields on the
          # request, apply these.
          if name is not None:
              request.name = name
          if update_mask is not None:
              request.update_mask = update_mask
          if parameters is not None:
              request.parameters = parameters
  
          # Wrap the RPC method; this adds retry and timeout information,
          # and friendly error handling.
          rpc = gapic_v1.method_async.wrap_method(
              self._client._transport.update_parameters,
              default_timeout=1200.0,
              client_info=DEFAULT_CLIENT_INFO,
          )
  
          # Certain fields should be provided within the metadata header;
          # add these here.
          metadata = tuple(metadata) + (
              gapic_v1.routing_header.to_grpc_metadata((("name", request.name),)),
          )
  
          # Send the request.
          response = await rpc(request, retry=retry, timeout=timeout, metadata=metadata,)
  
          # Wrap the response in an operation future.
          response = operation_async.from_gapic(
              response,
              self._client._transport.operations_client,
              cloud_memcache.Instance,
              metadata_type=cloud_memcache.OperationMetadata,
          )
  
          # Done; return the response.
          return response
  
      async def delete_instance(
          self,
          request: Union[cloud_memcache.DeleteInstanceRequest, dict] = None,
          *,
          name: str = None,
          retry: OptionalRetry = gapic_v1.method.DEFAULT,
          timeout: float = None,
          metadata: Sequence[Tuple[str, str]] = (),
      ) -> operation_async.AsyncOperation:
          r"""Deletes a single Instance.
  
          Args:
              request (Union[google.cloud.memcache_v1beta2.types.DeleteInstanceRequest, dict]):
                  The request object. Request for
                  [DeleteInstance][google.cloud.memcache.v1beta2.CloudMemcache.DeleteInstance].
              name (:class:`str`):
                  Required. Memcached instance resource name in the
                  format:
                  ``projects/{project_id}/locations/{location_id}/instances/{instance_id}``
                  where ``location_id`` refers to a GCP region
  
                  This corresponds to the ``name`` field
                  on the ``request`` instance; if ``request`` is provided, this
                  should not be set.
              retry (google.api_core.retry.Retry): Designation of what errors, if any,
                  should be retried.
              timeout (float): The timeout for this request.
              metadata (Sequence[Tuple[str, str]]): Strings which should be
                  sent along with the request as metadata.
  
          Returns:
              google.api_core.operation_async.AsyncOperation:
                  An object representing a long-running operation.
  
                  The result type for the operation will be :class:`google.protobuf.empty_pb2.Empty` A generic empty message that you can re-use to avoid defining duplicated
                     empty messages in your APIs. A typical example is to
                     use it as the request or the response type of an API
                     method. For instance:
  
                        service Foo {
                           rpc Bar(google.protobuf.Empty) returns
                           (google.protobuf.Empty);
  
                        }
  
                     The JSON representation for Empty is empty JSON
                     object {}.
  
          """
          # Create or coerce a protobuf request object.
          # Sanity check: If we got a request object, we should *not* have
          # gotten any keyword arguments that map to the request.
          has_flattened_params = any([name])
          if request is not None and has_flattened_params:
              raise ValueError(
                  "If the `request` argument is set, then none of "
                  "the individual field arguments should be set."
              )
  
          request = cloud_memcache.DeleteInstanceRequest(request)
  
          # If we have keyword arguments corresponding to fields on the
          # request, apply these.
          if name is not None:
              request.name = name
  
          # Wrap the RPC method; this adds retry and timeout information,
          # and friendly error handling.
          rpc = gapic_v1.method_async.wrap_method(
              self._client._transport.delete_instance,
              default_timeout=1200.0,
              client_info=DEFAULT_CLIENT_INFO,
          )
  
          # Certain fields should be provided within the metadata header;
          # add these here.
          metadata = tuple(metadata) + (
              gapic_v1.routing_header.to_grpc_metadata((("name", request.name),)),
          )
  
          # Send the request.
          response = await rpc(request, retry=retry, timeout=timeout, metadata=metadata,)
  
          # Wrap the response in an operation future.
          response = operation_async.from_gapic(
              response,
              self._client._transport.operations_client,
              empty_pb2.Empty,
              metadata_type=cloud_memcache.OperationMetadata,
          )
  
          # Done; return the response.
          return response
  
      async def apply_parameters(
          self,
          request: Union[cloud_memcache.ApplyParametersRequest, dict] = None,
          *,
          name: str = None,
          node_ids: Sequence[str] = None,
          apply_all: bool = None,
          retry: OptionalRetry = gapic_v1.method.DEFAULT,
          timeout: float = None,
          metadata: Sequence[Tuple[str, str]] = (),
      ) -> operation_async.AsyncOperation:
          r"""``ApplyParameters`` restarts the set of specified nodes in order
          to update them to the current set of parameters for the
          Memcached Instance.
  
          Args:
              request (Union[google.cloud.memcache_v1beta2.types.ApplyParametersRequest, dict]):
                  The request object. Request for
                  [ApplyParameters][google.cloud.memcache.v1beta2.CloudMemcache.ApplyParameters].
              name (:class:`str`):
                  Required. Resource name of the
                  Memcached instance for which parameter
                  group updates should be applied.
  
                  This corresponds to the ``name`` field
                  on the ``request`` instance; if ``request`` is provided, this
                  should not be set.
              node_ids (:class:`Sequence[str]`):
                  Nodes to which the instance-level
                  parameter group is applied.
  
                  This corresponds to the ``node_ids`` field
                  on the ``request`` instance; if ``request`` is provided, this
                  should not be set.
              apply_all (:class:`bool`):
                  Whether to apply instance-level parameter group to all
                  nodes. If set to true, users are restricted from
                  specifying individual nodes, and ``ApplyParameters``
                  updates all nodes within the instance.
  
                  This corresponds to the ``apply_all`` field
                  on the ``request`` instance; if ``request`` is provided, this
                  should not be set.
              retry (google.api_core.retry.Retry): Designation of what errors, if any,
                  should be retried.
              timeout (float): The timeout for this request.
              metadata (Sequence[Tuple[str, str]]): Strings which should be
                  sent along with the request as metadata.
  
          Returns:
              google.api_core.operation_async.AsyncOperation:
                  An object representing a long-running operation.
  
                  The result type for the operation will be
                  :class:`google.cloud.memcache_v1beta2.types.Instance` A
                  Memorystore for Memcached instance
  
          """
          # Create or coerce a protobuf request object.
          # Sanity check: If we got a request object, we should *not* have
          # gotten any keyword arguments that map to the request.
          has_flattened_params = any([name, node_ids, apply_all])
          if request is not None and has_flattened_params:
              raise ValueError(
                  "If the `request` argument is set, then none of "
                  "the individual field arguments should be set."
              )
  
          request = cloud_memcache.ApplyParametersRequest(request)
  
          # If we have keyword arguments corresponding to fields on the
          # request, apply these.
          if name is not None:
              request.name = name
          if apply_all is not None:
              request.apply_all = apply_all
          if node_ids:
              request.node_ids.extend(node_ids)
  
          # Wrap the RPC method; this adds retry and timeout information,
          # and friendly error handling.
          rpc = gapic_v1.method_async.wrap_method(
              self._client._transport.apply_parameters,
              default_timeout=1200.0,
              client_info=DEFAULT_CLIENT_INFO,
          )
  
          # Certain fields should be provided within the metadata header;
          # add these here.
          metadata = tuple(metadata) + (
              gapic_v1.routing_header.to_grpc_metadata((("name", request.name),)),
          )
  
          # Send the request.
          response = await rpc(request, retry=retry, timeout=timeout, metadata=metadata,)
  
          # Wrap the response in an operation future.
          response = operation_async.from_gapic(
              response,
              self._client._transport.operations_client,
              cloud_memcache.Instance,
              metadata_type=cloud_memcache.OperationMetadata,
          )
  
          # Done; return the response.
          return response
  
      async def apply_software_update(
          self,
          request: Union[cloud_memcache.ApplySoftwareUpdateRequest, dict] = None,
          *,
          instance: str = None,
          node_ids: Sequence[str] = None,
          apply_all: bool = None,
          retry: OptionalRetry = gapic_v1.method.DEFAULT,
          timeout: float = None,
          metadata: Sequence[Tuple[str, str]] = (),
      ) -> operation_async.AsyncOperation:
          r"""Updates software on the selected nodes of the
          Instance.
  
          Args:
              request (Union[google.cloud.memcache_v1beta2.types.ApplySoftwareUpdateRequest, dict]):
                  The request object. Request for
                  [ApplySoftwareUpdate][google.cloud.memcache.v1beta2.CloudMemcache.ApplySoftwareUpdate].
              instance (:class:`str`):
                  Required. Resource name of the
                  Memcached instance for which software
                  update should be applied.
  
                  This corresponds to the ``instance`` field
                  on the ``request`` instance; if ``request`` is provided, this
                  should not be set.
              node_ids (:class:`Sequence[str]`):
                  Nodes to which we should apply the
                  update to. Note all the selected nodes
                  are updated in parallel.
  
                  This corresponds to the ``node_ids`` field
                  on the ``request`` instance; if ``request`` is provided, this
                  should not be set.
              apply_all (:class:`bool`):
                  Whether to apply the update to all
                  nodes. If set to true, will explicitly
                  restrict users from specifying any
                  nodes, and apply software update to all
                  nodes (where applicable) within the
                  instance.
  
                  This corresponds to the ``apply_all`` field
                  on the ``request`` instance; if ``request`` is provided, this
                  should not be set.
              retry (google.api_core.retry.Retry): Designation of what errors, if any,
                  should be retried.
              timeout (float): The timeout for this request.
              metadata (Sequence[Tuple[str, str]]): Strings which should be
                  sent along with the request as metadata.
  
          Returns:
              google.api_core.operation_async.AsyncOperation:
                  An object representing a long-running operation.
  
                  The result type for the operation will be
                  :class:`google.cloud.memcache_v1beta2.types.Instance` A
                  Memorystore for Memcached instance
  
          """
          # Create or coerce a protobuf request object.
          # Sanity check: If we got a request object, we should *not* have
          # gotten any keyword arguments that map to the request.
          has_flattened_params = any([instance, node_ids, apply_all])
          if request is not None and has_flattened_params:
              raise ValueError(
                  "If the `request` argument is set, then none of "
                  "the individual field arguments should be set."
              )
  
          request = cloud_memcache.ApplySoftwareUpdateRequest(request)
  
          # If we have keyword arguments corresponding to fields on the
          # request, apply these.
          if instance is not None:
              request.instance = instance
          if apply_all is not None:
              request.apply_all = apply_all
          if node_ids:
              request.node_ids.extend(node_ids)
  
          # Wrap the RPC method; this adds retry and timeout information,
          # and friendly error handling.
          rpc = gapic_v1.method_async.wrap_method(
              self._client._transport.apply_software_update,
              default_timeout=1200.0,
              client_info=DEFAULT_CLIENT_INFO,
          )
  
          # Certain fields should be provided within the metadata header;
          # add these here.
          metadata = tuple(metadata) + (
              gapic_v1.routing_header.to_grpc_metadata((("instance", request.instance),)),
          )
  
          # Send the request.
          response = await rpc(request, retry=retry, timeout=timeout, metadata=metadata,)
  
          # Wrap the response in an operation future.
          response = operation_async.from_gapic(
              response,
              self._client._transport.operations_client,
              cloud_memcache.Instance,
              metadata_type=cloud_memcache.OperationMetadata,
          )
  
          # Done; return the response.
          return response
  
      async def __aenter__(self):
          return self
  
      async def __aexit__(self, exc_type, exc, tb):
          await self.transport.close()
  
  
  try:
      DEFAULT_CLIENT_INFO = gapic_v1.client_info.ClientInfo(
          gapic_version=pkg_resources.get_distribution("google-cloud-memcache",).version,
      )
  except pkg_resources.DistributionNotFound:
      DEFAULT_CLIENT_INFO = gapic_v1.client_info.ClientInfo()
  
  
  __all__ = ("CloudMemcacheAsyncClient",)
  