grpc_asyncio.py

# -*- 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.
#

import warnings
from typing import Awaitable, Callable, Dict, Optional, Sequence, Tuple

from google.api_core import gapic_v1  # type: ignore
from google.api_core import grpc_helpers_async  # type: ignore
from google.api_core import operations_v1  # type: ignore
from google import auth  # type: ignore
from google.auth import credentials  # type: ignore
from google.auth.transport.grpc import SslCredentials  # type: ignore

import grpc  # type: ignore
from grpc.experimental import aio  # type: ignore

from google.cloud.automl_v1.types import annotation_spec
from google.cloud.automl_v1.types import dataset
from google.cloud.automl_v1.types import dataset as gca_dataset
from google.cloud.automl_v1.types import model
from google.cloud.automl_v1.types import model as gca_model
from google.cloud.automl_v1.types import model_evaluation
from google.cloud.automl_v1.types import service
from google.longrunning import operations_pb2 as operations  # type: ignore

from .base import AutoMlTransport, DEFAULT_CLIENT_INFO
from .grpc import AutoMlGrpcTransport


class AutoMlGrpcAsyncIOTransport(AutoMlTransport):
    """gRPC AsyncIO backend transport for AutoMl.

    AutoML Server API.

    The resource names are assigned by the server. The server never
    reuses names that it has created after the resources with those
    names are deleted.

    An ID of a resource is the last element of the item's resource name.
    For
    ``projects/{project_id}/locations/{location_id}/datasets/{dataset_id}``,
    then the id for the item is ``{dataset_id}``.

    Currently the only supported ``location_id`` is "us-central1".

    On any input that is documented to expect a string parameter in
    snake_case or kebab-case, either of those cases is accepted.

    This class defines the same methods as the primary client, so the
    primary client can load the underlying transport implementation
    and call it.

    It sends protocol buffers over the wire using gRPC (which is built on
    top of HTTP/2); the ``grpcio`` package must be installed.
    """

    _grpc_channel: aio.Channel
    _stubs: Dict[str, Callable] = {}

    @classmethod
    def create_channel(
        cls,
        host: str = "automl.googleapis.com",
        credentials: credentials.Credentials = None,
        credentials_file: Optional[str] = None,
        scopes: Optional[Sequence[str]] = None,
        quota_project_id: Optional[str] = None,
        **kwargs,
    ) -> aio.Channel:
        """Create and return a gRPC AsyncIO channel object.
        Args:
            address (Optional[str]): The host for the channel to use.
            credentials (Optional[~.Credentials]): The
                authorization credentials to attach to requests. These
                credentials identify this application to the service. If
                none are specified, the client will attempt to ascertain
                the credentials from the environment.
            credentials_file (Optional[str]): A file with credentials that can
                be loaded with :func:`google.auth.load_credentials_from_file`.
                This argument is ignored if ``channel`` is provided.
            scopes (Optional[Sequence[str]]): A optional list of scopes needed for this
                service. These are only used when credentials are not specified and
                are passed to :func:`google.auth.default`.
            quota_project_id (Optional[str]): An optional project to use for billing
                and quota.
            kwargs (Optional[dict]): Keyword arguments, which are passed to the
                channel creation.
        Returns:
            aio.Channel: A gRPC AsyncIO channel object.
        """
        scopes = scopes or cls.AUTH_SCOPES
        return grpc_helpers_async.create_channel(
            host,
            credentials=credentials,
            credentials_file=credentials_file,
            scopes=scopes,
            quota_project_id=quota_project_id,
            **kwargs,
        )

    def __init__(
        self,
        *,
        host: str = "automl.googleapis.com",
        credentials: credentials.Credentials = None,
        credentials_file: Optional[str] = None,
        scopes: Optional[Sequence[str]] = None,
        channel: aio.Channel = None,
        api_mtls_endpoint: str = None,
        client_cert_source: Callable[[], Tuple[bytes, bytes]] = None,
        ssl_channel_credentials: grpc.ChannelCredentials = None,
        quota_project_id=None,
        client_info: gapic_v1.client_info.ClientInfo = DEFAULT_CLIENT_INFO,
    ) -> None:
        """Instantiate the transport.

        Args:
            host (Optional[str]): The hostname to connect to.
            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.
                This argument is ignored if ``channel`` is provided.
            credentials_file (Optional[str]): A file with credentials that can
                be loaded with :func:`google.auth.load_credentials_from_file`.
                This argument is ignored if ``channel`` is provided.
            scopes (Optional[Sequence[str]]): A optional list of scopes needed for this
                service. These are only used when credentials are not specified and
                are passed to :func:`google.auth.default`.
            channel (Optional[aio.Channel]): A ``Channel`` instance through
                which to make calls.
            api_mtls_endpoint (Optional[str]): Deprecated. The mutual TLS endpoint.
                If provided, it overrides the ``host`` argument and tries to create
                a mutual TLS channel with client SSL credentials from
                ``client_cert_source`` or applicatin default SSL credentials.
            client_cert_source (Optional[Callable[[], Tuple[bytes, bytes]]]):
                Deprecated. A callback to provide client SSL certificate bytes and
                private key bytes, both in PEM format. It is ignored if
                ``api_mtls_endpoint`` is None.
            ssl_channel_credentials (grpc.ChannelCredentials): SSL credentials
                for grpc channel. It is ignored if ``channel`` is provided.
            quota_project_id (Optional[str]): An optional project to use for billing
                and quota.
            client_info (google.api_core.gapic_v1.client_info.ClientInfo):	
                The client info used to send a user-agent string along with	
                API requests. If ``None``, then default info will be used.	
                Generally, you only need to set this if you're developing	
                your own client library.

        Raises:
            google.auth.exceptions.MutualTlsChannelError: If mutual TLS transport
              creation failed for any reason.
          google.api_core.exceptions.DuplicateCredentialArgs: If both ``credentials``
              and ``credentials_file`` are passed.
        """
        self._ssl_channel_credentials = ssl_channel_credentials

        if channel:
            # Sanity check: Ensure that channel and credentials are not both
            # provided.
            credentials = False

            # If a channel was explicitly provided, set it.
            self._grpc_channel = channel
            self._ssl_channel_credentials = None
        elif api_mtls_endpoint:
            warnings.warn(
                "api_mtls_endpoint and client_cert_source are deprecated",
                DeprecationWarning,
            )

            host = (
                api_mtls_endpoint
                if ":" in api_mtls_endpoint
                else api_mtls_endpoint + ":443"
            )

            if credentials is None:
                credentials, _ = auth.default(
                    scopes=self.AUTH_SCOPES, quota_project_id=quota_project_id
                )

            # Create SSL credentials with client_cert_source or application
            # default SSL credentials.
            if client_cert_source:
                cert, key = client_cert_source()
                ssl_credentials = grpc.ssl_channel_credentials(
                    certificate_chain=cert, private_key=key
                )
            else:
                ssl_credentials = SslCredentials().ssl_credentials

            # create a new channel. The provided one is ignored.
            self._grpc_channel = type(self).create_channel(
                host,
                credentials=credentials,
                credentials_file=credentials_file,
                ssl_credentials=ssl_credentials,
                scopes=scopes or self.AUTH_SCOPES,
                quota_project_id=quota_project_id,
                options=[
                    ("grpc.max_send_message_length", -1),
                    ("grpc.max_receive_message_length", -1),
                ],
            )
            self._ssl_channel_credentials = ssl_credentials
        else:
            host = host if ":" in host else host + ":443"

            if credentials is None:
                credentials, _ = auth.default(
                    scopes=self.AUTH_SCOPES, quota_project_id=quota_project_id
                )

            # create a new channel. The provided one is ignored.
            self._grpc_channel = type(self).create_channel(
                host,
                credentials=credentials,
                credentials_file=credentials_file,
                ssl_credentials=ssl_channel_credentials,
                scopes=scopes or self.AUTH_SCOPES,
                quota_project_id=quota_project_id,
                options=[
                    ("grpc.max_send_message_length", -1),
                    ("grpc.max_receive_message_length", -1),
                ],
            )

        # Run the base constructor.
        super().__init__(
            host=host,
            credentials=credentials,
            credentials_file=credentials_file,
            scopes=scopes or self.AUTH_SCOPES,
            quota_project_id=quota_project_id,
            client_info=client_info,
        )

        self._stubs = {}
        self._operations_client = None

    @property
    def grpc_channel(self) -> aio.Channel:
        """Create the channel designed to connect to this service.

        This property caches on the instance; repeated calls return
        the same channel.
        """
        # Return the channel from cache.
        return self._grpc_channel

    @property
    def operations_client(self) -> operations_v1.OperationsAsyncClient:
        """Create the client designed to process long-running operations.

        This property caches on the instance; repeated calls return the same
        client.
        """
        # Sanity check: Only create a new client if we do not already have one.
        if self._operations_client is None:
            self._operations_client = operations_v1.OperationsAsyncClient(
                self.grpc_channel
            )

        # Return the client from cache.
        return self._operations_client

    @property
    def create_dataset(
        self,
    ) -> Callable[[service.CreateDatasetRequest], Awaitable[operations.Operation]]:
        r"""Return a callable for the create dataset method over gRPC.

        Creates a dataset.

        Returns:
            Callable[[~.CreateDatasetRequest],
                    Awaitable[~.Operation]]:
                A function that, when called, will call the underlying RPC
                on the server.
        """
        # Generate a "stub function" on-the-fly which will actually make
        # the request.
        # gRPC handles serialization and deserialization, so we just need
        # to pass in the functions for each.
        if "create_dataset" not in self._stubs:
            self._stubs["create_dataset"] = self.grpc_channel.unary_unary(
                "/google.cloud.automl.v1.AutoMl/CreateDataset",
                request_serializer=service.CreateDatasetRequest.serialize,
                response_deserializer=operations.Operation.FromString,
            )
        return self._stubs["create_dataset"]

    @property
    def get_dataset(
        self,
    ) -> Callable[[service.GetDatasetRequest], Awaitable[dataset.Dataset]]:
        r"""Return a callable for the get dataset method over gRPC.

        Gets a dataset.

        Returns:
            Callable[[~.GetDatasetRequest],
                    Awaitable[~.Dataset]]:
                A function that, when called, will call the underlying RPC
                on the server.
        """
        # Generate a "stub function" on-the-fly which will actually make
        # the request.
        # gRPC handles serialization and deserialization, so we just need
        # to pass in the functions for each.
        if "get_dataset" not in self._stubs:
            self._stubs["get_dataset"] = self.grpc_channel.unary_unary(
                "/google.cloud.automl.v1.AutoMl/GetDataset",
                request_serializer=service.GetDatasetRequest.serialize,
                response_deserializer=dataset.Dataset.deserialize,
            )
        return self._stubs["get_dataset"]

    @property
    def list_datasets(
        self,
    ) -> Callable[
        [service.ListDatasetsRequest], Awaitable[service.ListDatasetsResponse]
    ]:
        r"""Return a callable for the list datasets method over gRPC.

        Lists datasets in a project.

        Returns:
            Callable[[~.ListDatasetsRequest],
                    Awaitable[~.ListDatasetsResponse]]:
                A function that, when called, will call the underlying RPC
                on the server.
        """
        # Generate a "stub function" on-the-fly which will actually make
        # the request.
        # gRPC handles serialization and deserialization, so we just need
        # to pass in the functions for each.
        if "list_datasets" not in self._stubs:
            self._stubs["list_datasets"] = self.grpc_channel.unary_unary(
                "/google.cloud.automl.v1.AutoMl/ListDatasets",
                request_serializer=service.ListDatasetsRequest.serialize,
                response_deserializer=service.ListDatasetsResponse.deserialize,
            )
        return self._stubs["list_datasets"]

    @property
    def update_dataset(
        self,
    ) -> Callable[[service.UpdateDatasetRequest], Awaitable[gca_dataset.Dataset]]:
        r"""Return a callable for the update dataset method over gRPC.

        Updates a dataset.

        Returns:
            Callable[[~.UpdateDatasetRequest],
                    Awaitable[~.Dataset]]:
                A function that, when called, will call the underlying RPC
                on the server.
        """
        # Generate a "stub function" on-the-fly which will actually make
        # the request.
        # gRPC handles serialization and deserialization, so we just need
        # to pass in the functions for each.
        if "update_dataset" not in self._stubs:
            self._stubs["update_dataset"] = self.grpc_channel.unary_unary(
                "/google.cloud.automl.v1.AutoMl/UpdateDataset",
                request_serializer=service.UpdateDatasetRequest.serialize,
                response_deserializer=gca_dataset.Dataset.deserialize,
            )
        return self._stubs["update_dataset"]

    @property
    def delete_dataset(
        self,
    ) -> Callable[[service.DeleteDatasetRequest], Awaitable[operations.Operation]]:
        r"""Return a callable for the delete dataset method over gRPC.

        Deletes a dataset and all of its contents. Returns empty
        response in the
        [response][google.longrunning.Operation.response] field when it
        completes, and ``delete_details`` in the
        [metadata][google.longrunning.Operation.metadata] field.

        Returns:
            Callable[[~.DeleteDatasetRequest],
                    Awaitable[~.Operation]]:
                A function that, when called, will call the underlying RPC
                on the server.
        """
        # Generate a "stub function" on-the-fly which will actually make
        # the request.
        # gRPC handles serialization and deserialization, so we just need
        # to pass in the functions for each.
        if "delete_dataset" not in self._stubs:
            self._stubs["delete_dataset"] = self.grpc_channel.unary_unary(
                "/google.cloud.automl.v1.AutoMl/DeleteDataset",
                request_serializer=service.DeleteDatasetRequest.serialize,
                response_deserializer=operations.Operation.FromString,
            )
        return self._stubs["delete_dataset"]

    @property
    def import_data(
        self,
    ) -> Callable[[service.ImportDataRequest], Awaitable[operations.Operation]]:
        r"""Return a callable for the import data method over gRPC.

        Imports data into a dataset. For Tables this method can only be
        called on an empty Dataset.

        For Tables:

        -  A
           [schema_inference_version][google.cloud.automl.v1.InputConfig.params]
           parameter must be explicitly set. Returns an empty response
           in the [response][google.longrunning.Operation.response]
           field when it completes.

        Returns:
            Callable[[~.ImportDataRequest],
                    Awaitable[~.Operation]]:
                A function that, when called, will call the underlying RPC
                on the server.
        """
        # Generate a "stub function" on-the-fly which will actually make
        # the request.
        # gRPC handles serialization and deserialization, so we just need
        # to pass in the functions for each.
        if "import_data" not in self._stubs:
            self._stubs["import_data"] = self.grpc_channel.unary_unary(
                "/google.cloud.automl.v1.AutoMl/ImportData",
                request_serializer=service.ImportDataRequest.serialize,
                response_deserializer=operations.Operation.FromString,
            )
        return self._stubs["import_data"]

    @property
    def export_data(
        self,
    ) -> Callable[[service.ExportDataRequest], Awaitable[operations.Operation]]:
        r"""Return a callable for the export data method over gRPC.

        Exports dataset's data to the provided output location. Returns
        an empty response in the
        [response][google.longrunning.Operation.response] field when it
        completes.

        Returns:
            Callable[[~.ExportDataRequest],
                    Awaitable[~.Operation]]:
                A function that, when called, will call the underlying RPC
                on the server.
        """
        # Generate a "stub function" on-the-fly which will actually make
        # the request.
        # gRPC handles serialization and deserialization, so we just need
        # to pass in the functions for each.
        if "export_data" not in self._stubs:
            self._stubs["export_data"] = self.grpc_channel.unary_unary(
                "/google.cloud.automl.v1.AutoMl/ExportData",
                request_serializer=service.ExportDataRequest.serialize,
                response_deserializer=operations.Operation.FromString,
            )
        return self._stubs["export_data"]

    @property
    def get_annotation_spec(
        self,
    ) -> Callable[
        [service.GetAnnotationSpecRequest], Awaitable[annotation_spec.AnnotationSpec]
    ]:
        r"""Return a callable for the get annotation spec method over gRPC.

        Gets an annotation spec.

        Returns:
            Callable[[~.GetAnnotationSpecRequest],
                    Awaitable[~.AnnotationSpec]]:
                A function that, when called, will call the underlying RPC
                on the server.
        """
        # Generate a "stub function" on-the-fly which will actually make
        # the request.
        # gRPC handles serialization and deserialization, so we just need
        # to pass in the functions for each.
        if "get_annotation_spec" not in self._stubs:
            self._stubs["get_annotation_spec"] = self.grpc_channel.unary_unary(
                "/google.cloud.automl.v1.AutoMl/GetAnnotationSpec",
                request_serializer=service.GetAnnotationSpecRequest.serialize,
                response_deserializer=annotation_spec.AnnotationSpec.deserialize,
            )
        return self._stubs["get_annotation_spec"]

    @property
    def create_model(
        self,
    ) -> Callable[[service.CreateModelRequest], Awaitable[operations.Operation]]:
        r"""Return a callable for the create model method over gRPC.

        Creates a model. Returns a Model in the
        [response][google.longrunning.Operation.response] field when it
        completes. When you create a model, several model evaluations
        are created for it: a global evaluation, and one evaluation for
        each annotation spec.

        Returns:
            Callable[[~.CreateModelRequest],
                    Awaitable[~.Operation]]:
                A function that, when called, will call the underlying RPC
                on the server.
        """
        # Generate a "stub function" on-the-fly which will actually make
        # the request.
        # gRPC handles serialization and deserialization, so we just need
        # to pass in the functions for each.
        if "create_model" not in self._stubs:
            self._stubs["create_model"] = self.grpc_channel.unary_unary(
                "/google.cloud.automl.v1.AutoMl/CreateModel",
                request_serializer=service.CreateModelRequest.serialize,
                response_deserializer=operations.Operation.FromString,
            )
        return self._stubs["create_model"]

    @property
    def get_model(self) -> Callable[[service.GetModelRequest], Awaitable[model.Model]]:
        r"""Return a callable for the get model method over gRPC.

        Gets a model.

        Returns:
            Callable[[~.GetModelRequest],
                    Awaitable[~.Model]]:
                A function that, when called, will call the underlying RPC
                on the server.
        """
        # Generate a "stub function" on-the-fly which will actually make
        # the request.
        # gRPC handles serialization and deserialization, so we just need
        # to pass in the functions for each.
        if "get_model" not in self._stubs:
            self._stubs["get_model"] = self.grpc_channel.unary_unary(
                "/google.cloud.automl.v1.AutoMl/GetModel",
                request_serializer=service.GetModelRequest.serialize,
                response_deserializer=model.Model.deserialize,
            )
        return self._stubs["get_model"]

    @property
    def list_models(
        self,
    ) -> Callable[[service.ListModelsRequest], Awaitable[service.ListModelsResponse]]:
        r"""Return a callable for the list models method over gRPC.

        Lists models.

        Returns:
            Callable[[~.ListModelsRequest],
                    Awaitable[~.ListModelsResponse]]:
                A function that, when called, will call the underlying RPC
                on the server.
        """
        # Generate a "stub function" on-the-fly which will actually make
        # the request.
        # gRPC handles serialization and deserialization, so we just need
        # to pass in the functions for each.
        if "list_models" not in self._stubs:
            self._stubs["list_models"] = self.grpc_channel.unary_unary(
                "/google.cloud.automl.v1.AutoMl/ListModels",
                request_serializer=service.ListModelsRequest.serialize,
                response_deserializer=service.ListModelsResponse.deserialize,
            )
        return self._stubs["list_models"]

    @property
    def delete_model(
        self,
    ) -> Callable[[service.DeleteModelRequest], Awaitable[operations.Operation]]:
        r"""Return a callable for the delete model method over gRPC.

        Deletes a model. Returns ``google.protobuf.Empty`` in the
        [response][google.longrunning.Operation.response] field when it
        completes, and ``delete_details`` in the
        [metadata][google.longrunning.Operation.metadata] field.

        Returns:
            Callable[[~.DeleteModelRequest],
                    Awaitable[~.Operation]]:
                A function that, when called, will call the underlying RPC
                on the server.
        """
        # Generate a "stub function" on-the-fly which will actually make
        # the request.
        # gRPC handles serialization and deserialization, so we just need
        # to pass in the functions for each.
        if "delete_model" not in self._stubs:
            self._stubs["delete_model"] = self.grpc_channel.unary_unary(
                "/google.cloud.automl.v1.AutoMl/DeleteModel",
                request_serializer=service.DeleteModelRequest.serialize,
                response_deserializer=operations.Operation.FromString,
            )
        return self._stubs["delete_model"]

    @property
    def update_model(
        self,
    ) -> Callable[[service.UpdateModelRequest], Awaitable[gca_model.Model]]:
        r"""Return a callable for the update model method over gRPC.

        Updates a model.

        Returns:
            Callable[[~.UpdateModelRequest],
                    Awaitable[~.Model]]:
                A function that, when called, will call the underlying RPC
                on the server.
        """
        # Generate a "stub function" on-the-fly which will actually make
        # the request.
        # gRPC handles serialization and deserialization, so we just need
        # to pass in the functions for each.
        if "update_model" not in self._stubs:
            self._stubs["update_model"] = self.grpc_channel.unary_unary(
                "/google.cloud.automl.v1.AutoMl/UpdateModel",
                request_serializer=service.UpdateModelRequest.serialize,
                response_deserializer=gca_model.Model.deserialize,
            )
        return self._stubs["update_model"]

    @property
    def deploy_model(
        self,
    ) -> Callable[[service.DeployModelRequest], Awaitable[operations.Operation]]:
        r"""Return a callable for the deploy model method over gRPC.

        Deploys a model. If a model is already deployed, deploying it
        with the same parameters has no effect. Deploying with different
        parametrs (as e.g. changing

        [node_number][google.cloud.automl.v1p1beta.ImageObjectDetectionModelDeploymentMetadata.node_number])
        will reset the deployment state without pausing the model's
        availability.

        Only applicable for Text Classification, Image Object Detection
        , Tables, and Image Segmentation; all other domains manage
        deployment automatically.

        Returns an empty response in the
        [response][google.longrunning.Operation.response] field when it
        completes.

        Returns:
            Callable[[~.DeployModelRequest],
                    Awaitable[~.Operation]]:
                A function that, when called, will call the underlying RPC
                on the server.
        """
        # Generate a "stub function" on-the-fly which will actually make
        # the request.
        # gRPC handles serialization and deserialization, so we just need
        # to pass in the functions for each.
        if "deploy_model" not in self._stubs:
            self._stubs["deploy_model"] = self.grpc_channel.unary_unary(
                "/google.cloud.automl.v1.AutoMl/DeployModel",
                request_serializer=service.DeployModelRequest.serialize,
                response_deserializer=operations.Operation.FromString,
            )
        return self._stubs["deploy_model"]

    @property
    def undeploy_model(
        self,
    ) -> Callable[[service.UndeployModelRequest], Awaitable[operations.Operation]]:
        r"""Return a callable for the undeploy model method over gRPC.

        Undeploys a model. If the model is not deployed this method has
        no effect.

        Only applicable for Text Classification, Image Object Detection
        and Tables; all other domains manage deployment automatically.

        Returns an empty response in the
        [response][google.longrunning.Operation.response] field when it
        completes.

        Returns:
            Callable[[~.UndeployModelRequest],
                    Awaitable[~.Operation]]:
                A function that, when called, will call the underlying RPC
                on the server.
        """
        # Generate a "stub function" on-the-fly which will actually make
        # the request.
        # gRPC handles serialization and deserialization, so we just need
        # to pass in the functions for each.
        if "undeploy_model" not in self._stubs:
            self._stubs["undeploy_model"] = self.grpc_channel.unary_unary(
                "/google.cloud.automl.v1.AutoMl/UndeployModel",
                request_serializer=service.UndeployModelRequest.serialize,
                response_deserializer=operations.Operation.FromString,
            )
        return self._stubs["undeploy_model"]

    @property
    def export_model(
        self,
    ) -> Callable[[service.ExportModelRequest], Awaitable[operations.Operation]]:
        r"""Return a callable for the export model method over gRPC.

        Exports a trained, "export-able", model to a user specified
        Google Cloud Storage location. A model is considered export-able
        if and only if it has an export format defined for it in
        [ModelExportOutputConfig][google.cloud.automl.v1.ModelExportOutputConfig].

        Returns an empty response in the
        [response][google.longrunning.Operation.response] field when it
        completes.

        Returns:
            Callable[[~.ExportModelRequest],
                    Awaitable[~.Operation]]:
                A function that, when called, will call the underlying RPC
                on the server.
        """
        # Generate a "stub function" on-the-fly which will actually make
        # the request.
        # gRPC handles serialization and deserialization, so we just need
        # to pass in the functions for each.
        if "export_model" not in self._stubs:
            self._stubs["export_model"] = self.grpc_channel.unary_unary(
                "/google.cloud.automl.v1.AutoMl/ExportModel",
                request_serializer=service.ExportModelRequest.serialize,
                response_deserializer=operations.Operation.FromString,
            )
        return self._stubs["export_model"]

    @property
    def get_model_evaluation(
        self,
    ) -> Callable[
        [service.GetModelEvaluationRequest], Awaitable[model_evaluation.ModelEvaluation]
    ]:
        r"""Return a callable for the get model evaluation method over gRPC.

        Gets a model evaluation.

        Returns:
            Callable[[~.GetModelEvaluationRequest],
                    Awaitable[~.ModelEvaluation]]:
                A function that, when called, will call the underlying RPC
                on the server.
        """
        # Generate a "stub function" on-the-fly which will actually make
        # the request.
        # gRPC handles serialization and deserialization, so we just need
        # to pass in the functions for each.
        if "get_model_evaluation" not in self._stubs:
            self._stubs["get_model_evaluation"] = self.grpc_channel.unary_unary(
                "/google.cloud.automl.v1.AutoMl/GetModelEvaluation",
                request_serializer=service.GetModelEvaluationRequest.serialize,
                response_deserializer=model_evaluation.ModelEvaluation.deserialize,
            )
        return self._stubs["get_model_evaluation"]

    @property
    def list_model_evaluations(
        self,
    ) -> Callable[
        [service.ListModelEvaluationsRequest],
        Awaitable[service.ListModelEvaluationsResponse],
    ]:
        r"""Return a callable for the list model evaluations method over gRPC.

        Lists model evaluations.

        Returns:
            Callable[[~.ListModelEvaluationsRequest],
                    Awaitable[~.ListModelEvaluationsResponse]]:
                A function that, when called, will call the underlying RPC
                on the server.
        """
        # Generate a "stub function" on-the-fly which will actually make
        # the request.
        # gRPC handles serialization and deserialization, so we just need
        # to pass in the functions for each.
        if "list_model_evaluations" not in self._stubs:
            self._stubs["list_model_evaluations"] = self.grpc_channel.unary_unary(
                "/google.cloud.automl.v1.AutoMl/ListModelEvaluations",
                request_serializer=service.ListModelEvaluationsRequest.serialize,
                response_deserializer=service.ListModelEvaluationsResponse.deserialize,
            )
        return self._stubs["list_model_evaluations"]


__all__ = ("AutoMlGrpcAsyncIOTransport",)