Class SessionServiceClient (0.3.0) 

SessionServiceClient(
    *,
    credentials: typing.Optional[google.auth.credentials.Credentials] = None,
    transport: typing.Optional[
        typing.Union[
            str,
            google.cloud.ces_v1.services.session_service.transports.base.SessionServiceTransport,
            typing.Callable[
                [...],
                google.cloud.ces_v1.services.session_service.transports.base.SessionServiceTransport,
            ],
        ]
    ] = None,
    client_options: typing.Optional[
        typing.Union[google.api_core.client_options.ClientOptions, dict]
    ] = None,
    client_info: google.api_core.gapic_v1.client_info.ClientInfo = google.api_core.gapic_v1.client_info.ClientInfo
)

Session service provides APIs for interacting with CES agents.

Properties

api_endpoint

Return the API endpoint used by the client instance.

Returns
Type Description
str The API endpoint used by the client instance.

transport

Returns the transport used by the client instance.

Returns
Type Description
SessionServiceTransport The transport used by the client instance.

universe_domain

Return the universe domain used by the client instance.

Returns
Type Description
str The universe domain used by the client instance.

Methods

SessionServiceClient

SessionServiceClient(
    *,
    credentials: typing.Optional[google.auth.credentials.Credentials] = None,
    transport: typing.Optional[
        typing.Union[
            str,
            google.cloud.ces_v1.services.session_service.transports.base.SessionServiceTransport,
            typing.Callable[
                [...],
                google.cloud.ces_v1.services.session_service.transports.base.SessionServiceTransport,
            ],
        ]
    ] = None,
    client_options: typing.Optional[
        typing.Union[google.api_core.client_options.ClientOptions, dict]
    ] = None,
    client_info: google.api_core.gapic_v1.client_info.ClientInfo = google.api_core.gapic_v1.client_info.ClientInfo
)

Instantiates the session service client.

Parameters
Name Description
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 Optional[Union[str,SessionServiceTransport,Callable[..., SessionServiceTransport]]]

The transport to use, or a Callable that constructs and returns a new transport. If a Callable is given, it will be called with the same set of initialization arguments as used in the SessionServiceTransport constructor. If set to None, a transport is chosen automatically.
client_options Optional[Union[google.api_core.client_options.ClientOptions, dict]]

Custom options for the client. 1. The api_endpoint property can be used to override the default endpoint provided by the client when transport is not explicitly provided. Only if this property is not set and transport was not explicitly provided, the endpoint is determined by the GOOGLE_API_USE_MTLS_ENDPOINT environment variable, which have one of the following values: "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). 2. If the GOOGLE_API_USE_CLIENT_CERTIFICATE environment variable is "true", then the client_cert_source property can be used to provide a client certificate for mTLS 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. 3. The universe_domain property can be used to override the default "googleapis.com" universe. Note that the api_endpoint property still takes precedence; and universe_domain is currently not supported for mTLS.
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.
Exceptions
Type Description
google.auth.exceptions.MutualTLSChannelError If mutual TLS transport creation failed for any reason.

__exit__

__exit__(type, value, traceback)

Releases underlying transport's resources.

agent_path

agent_path(project: str, location: str, app: str, agent: str) -> str

Returns a fully-qualified agent string.

bidi_run_session

bidi_run_session(
    requests: typing.Optional[
        typing.Iterator[
            google.cloud.ces_v1.types.session_service.BidiSessionClientMessage
        ]
    ] = None,
    *,
    retry: typing.Optional[
        typing.Union[
            google.api_core.retry.retry_unary.Retry,
            google.api_core.gapic_v1.method._MethodDefault,
        ]
    ] = _MethodDefault._DEFAULT_VALUE,
    timeout: typing.Union[float, object] = _MethodDefault._DEFAULT_VALUE,
    metadata: typing.Sequence[typing.Tuple[str, typing.Union[str, bytes]]] = ()
) -> typing.Iterable[
    google.cloud.ces_v1.types.session_service.BidiSessionServerMessage
]

Establishes a bidirectional streaming connection with the CES agent. The agent processes continuous multimodal inputs (e.g., text, audio) and generates real-time multimodal output streams.

--- Client Request Stream --- The client streams requests in the following order:

  1. Initialization: The first message must contain xref_SessionConfig. For audio sessions, this should also include xref_InputAudioConfig and xref_OutputAudioConfig to define audio processing and synthesis parameters.

  2. Interaction: Subsequent messages stream xref_SessionInput containing real-time user input data.

  3. Termination: The client should half-close the stream when there is no more user input. It should also half-close upon receiving xref_EndSession or xref_GoAway from the agent.

--- Server Response Stream --- For each interaction turn, the agent streams messages in the following sequence:

  1. Speech Recognition (First N messages): Contains xref_RecognitionResult representing the concatenated user speech segments captured so far. This is only populated for audio sessions.

  2. Response (Next M messages): Contains xref_SessionOutput delivering the agent's response in various modalities (e.g., text, audio).

  3. Turn Completion (Final message of the turn): Contains xref_SessionOutput with xref_turn_completed set to true. This signals the end of the current turn and includes xref_DiagnosticInfo with execution details.

--- Audio Best Practices ---

  1. Streaming: Stream [audio data][google.cloud.ces.v1.SessionInput.audio] CONTINUOUSLY, even during silence. Recommended chunk size: 40-120ms (balances latency vs. efficiency).

  2. Playback & Interruption: Play [audio responses][google.cloud.ces.v1.SessionOutput.audio] upon receipt. Stop playback immediately if an xref_InterruptionSignal is received (e.g., user barge-in or new agent response).

# This snippet has been automatically generated and should be regarded as a
# code template only.
# It will require modifications to work:
# - It may require correct/in-range values for request initialization.
# - It may require specifying regional endpoints when creating the service
#   client as shown in:
#   https://googleapis.dev/python/google-api-core/latest/client_options.html
from google.cloud import ces_v1

def sample_bidi_run_session():
    # Create a client
    client = ces_v1.SessionServiceClient()

    # Initialize request argument(s)
    config = ces_v1.SessionConfig()
    config.session = "session_value"

    request = ces_v1.BidiSessionClientMessage(
        config=config,
    )

    # This method expects an iterator which contains
    # 'ces_v1.BidiSessionClientMessage' objects
    # Here we create a generator that yields a single `request` for
    # demonstrative purposes.
    requests = [request]

    def request_generator():
        for request in requests:
            yield request

    # Make the request
    stream = client.bidi_run_session(requests=request_generator())

    # Handle the response
    for response in stream:
        print(response)
Parameters
Name Description
requests Iterator[google.cloud.ces_v1.types.BidiSessionClientMessage]

The request object iterator. The top-level message sent by the client for the SessionService.BidiRunSession method.
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, Union[str, bytes]]]

Key/value pairs which should be sent along with the request as metadata. Normally, each value must be of type str, but for metadata keys ending with the suffix -bin, the corresponding values must be of type bytes.
Returns
Type Description
Iterable[google.cloud.ces_v1.types.BidiSessionServerMessage] The top-level message returned from SessionService.BidiRunSession method.

cancel_operation

cancel_operation(
    request: typing.Optional[
        typing.Union[google.longrunning.operations_pb2.CancelOperationRequest, dict]
    ] = None,
    *,
    retry: typing.Optional[
        typing.Union[
            google.api_core.retry.retry_unary.Retry,
            google.api_core.gapic_v1.method._MethodDefault,
        ]
    ] = _MethodDefault._DEFAULT_VALUE,
    timeout: typing.Union[float, object] = _MethodDefault._DEFAULT_VALUE,
    metadata: typing.Sequence[typing.Tuple[str, typing.Union[str, bytes]]] = ()
) -> None

Starts asynchronous cancellation on a long-running operation.

The server makes a best effort to cancel the operation, but success is not guaranteed. If the server doesn't support this method, it returns google.rpc.Code.UNIMPLEMENTED.

Parameters
Name Description
request .operations_pb2.CancelOperationRequest

The request object. Request message for CancelOperation method.
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, Union[str, bytes]]]

Key/value pairs which should be sent along with the request as metadata. Normally, each value must be of type str, but for metadata keys ending with the suffix -bin, the corresponding values must be of type bytes.

common_billing_account_path

common_billing_account_path(billing_account: str) -> str

Returns a fully-qualified billing_account string.

common_folder_path

common_folder_path(folder: str) -> str

Returns a fully-qualified folder string.

common_location_path

common_location_path(project: str, location: str) -> str

Returns a fully-qualified location string.

common_organization_path

common_organization_path(organization: str) -> str

Returns a fully-qualified organization string.

common_project_path

common_project_path(project: str) -> str

Returns a fully-qualified project string.

delete_operation

delete_operation(
    request: typing.Optional[
        typing.Union[google.longrunning.operations_pb2.DeleteOperationRequest, dict]
    ] = None,
    *,
    retry: typing.Optional[
        typing.Union[
            google.api_core.retry.retry_unary.Retry,
            google.api_core.gapic_v1.method._MethodDefault,
        ]
    ] = _MethodDefault._DEFAULT_VALUE,
    timeout: typing.Union[float, object] = _MethodDefault._DEFAULT_VALUE,
    metadata: typing.Sequence[typing.Tuple[str, typing.Union[str, bytes]]] = ()
) -> None

Deletes a long-running operation.

This method indicates that the client is no longer interested in the operation result. It does not cancel the operation. If the server doesn't support this method, it returns google.rpc.Code.UNIMPLEMENTED.

Parameters
Name Description
request .operations_pb2.DeleteOperationRequest

The request object. Request message for DeleteOperation method.
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, Union[str, bytes]]]

Key/value pairs which should be sent along with the request as metadata. Normally, each value must be of type str, but for metadata keys ending with the suffix -bin, the corresponding values must be of type bytes.

from_service_account_file

from_service_account_file(filename: str, *args, **kwargs)

Creates an instance of this client using the provided credentials file.

Parameter
Name Description
filename str

The path to the service account private key json file.
Returns
Type Description
SessionServiceClient The constructed client.

from_service_account_info

from_service_account_info(info: dict, *args, **kwargs)

Creates an instance of this client using the provided credentials info.

Parameter
Name Description
info dict

The service account private key info.
Returns
Type Description
SessionServiceClient The constructed client.

from_service_account_json

from_service_account_json(filename: str, *args, **kwargs)

Creates an instance of this client using the provided credentials file.

Parameter
Name Description
filename str

The path to the service account private key json file.
Returns
Type Description
SessionServiceClient The constructed client.

get_location

get_location(
    request: typing.Optional[
        typing.Union[google.cloud.location.locations_pb2.GetLocationRequest, dict]
    ] = None,
    *,
    retry: typing.Optional[
        typing.Union[
            google.api_core.retry.retry_unary.Retry,
            google.api_core.gapic_v1.method._MethodDefault,
        ]
    ] = _MethodDefault._DEFAULT_VALUE,
    timeout: typing.Union[float, object] = _MethodDefault._DEFAULT_VALUE,
    metadata: typing.Sequence[typing.Tuple[str, typing.Union[str, bytes]]] = ()
) -> google.cloud.location.locations_pb2.Location

Gets information about a location.

Parameters
Name Description
request .location_pb2.GetLocationRequest

The request object. Request message for GetLocation method.
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, Union[str, bytes]]]

Key/value pairs which should be sent along with the request as metadata. Normally, each value must be of type str, but for metadata keys ending with the suffix -bin, the corresponding values must be of type bytes.
Returns
Type Description
.location_pb2.Location Location object.

get_mtls_endpoint_and_cert_source

get_mtls_endpoint_and_cert_source(
    client_options: typing.Optional[
        google.api_core.client_options.ClientOptions
    ] = None,
)

Deprecated. 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 variable 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.

Parameter
Name Description
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.
Exceptions
Type Description
google.auth.exceptions.MutualTLSChannelError If any errors happen.
Returns
Type Description
Tuple[str, Callable[[], Tuple[bytes, bytes]]] returns the API endpoint and the client cert source to use.

get_operation

get_operation(
    request: typing.Optional[
        typing.Union[google.longrunning.operations_pb2.GetOperationRequest, dict]
    ] = None,
    *,
    retry: typing.Optional[
        typing.Union[
            google.api_core.retry.retry_unary.Retry,
            google.api_core.gapic_v1.method._MethodDefault,
        ]
    ] = _MethodDefault._DEFAULT_VALUE,
    timeout: typing.Union[float, object] = _MethodDefault._DEFAULT_VALUE,
    metadata: typing.Sequence[typing.Tuple[str, typing.Union[str, bytes]]] = ()
) -> google.longrunning.operations_pb2.Operation

Gets the latest state of a long-running operation.

Parameters
Name Description
request .operations_pb2.GetOperationRequest

The request object. Request message for GetOperation method.
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, Union[str, bytes]]]

Key/value pairs which should be sent along with the request as metadata. Normally, each value must be of type str, but for metadata keys ending with the suffix -bin, the corresponding values must be of type bytes.
Returns
Type Description
.operations_pb2.Operation An Operation object.

list_locations

list_locations(
    request: typing.Optional[
        typing.Union[google.cloud.location.locations_pb2.ListLocationsRequest, dict]
    ] = None,
    *,
    retry: typing.Optional[
        typing.Union[
            google.api_core.retry.retry_unary.Retry,
            google.api_core.gapic_v1.method._MethodDefault,
        ]
    ] = _MethodDefault._DEFAULT_VALUE,
    timeout: typing.Union[float, object] = _MethodDefault._DEFAULT_VALUE,
    metadata: typing.Sequence[typing.Tuple[str, typing.Union[str, bytes]]] = ()
) -> google.cloud.location.locations_pb2.ListLocationsResponse

Lists information about the supported locations for this service.

Parameters
Name Description
request .location_pb2.ListLocationsRequest

The request object. Request message for ListLocations method.
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, Union[str, bytes]]]

Key/value pairs which should be sent along with the request as metadata. Normally, each value must be of type str, but for metadata keys ending with the suffix -bin, the corresponding values must be of type bytes.
Returns
Type Description
.location_pb2.ListLocationsResponse Response message for ListLocations method.

list_operations

list_operations(
    request: typing.Optional[
        typing.Union[google.longrunning.operations_pb2.ListOperationsRequest, dict]
    ] = None,
    *,
    retry: typing.Optional[
        typing.Union[
            google.api_core.retry.retry_unary.Retry,
            google.api_core.gapic_v1.method._MethodDefault,
        ]
    ] = _MethodDefault._DEFAULT_VALUE,
    timeout: typing.Union[float, object] = _MethodDefault._DEFAULT_VALUE,
    metadata: typing.Sequence[typing.Tuple[str, typing.Union[str, bytes]]] = ()
) -> google.longrunning.operations_pb2.ListOperationsResponse

Lists operations that match the specified filter in the request.

Parameters
Name Description
request .operations_pb2.ListOperationsRequest

The request object. Request message for ListOperations method.
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, Union[str, bytes]]]

Key/value pairs which should be sent along with the request as metadata. Normally, each value must be of type str, but for metadata keys ending with the suffix -bin, the corresponding values must be of type bytes.
Returns
Type Description
.operations_pb2.ListOperationsResponse Response message for ListOperations method.

parse_agent_path

parse_agent_path(path: str) -> typing.Dict[str, str]

Parses a agent path into its component segments.

parse_common_billing_account_path

parse_common_billing_account_path(path: str) -> typing.Dict[str, str]

Parse a billing_account path into its component segments.

parse_common_folder_path

parse_common_folder_path(path: str) -> typing.Dict[str, str]

Parse a folder path into its component segments.

parse_common_location_path

parse_common_location_path(path: str) -> typing.Dict[str, str]

Parse a location path into its component segments.

parse_common_organization_path

parse_common_organization_path(path: str) -> typing.Dict[str, str]

Parse a organization path into its component segments.

parse_common_project_path

parse_common_project_path(path: str) -> typing.Dict[str, str]

Parse a project path into its component segments.

parse_session_path

parse_session_path(path: str) -> typing.Dict[str, str]

Parses a session path into its component segments.

parse_tool_path

parse_tool_path(path: str) -> typing.Dict[str, str]

Parses a tool path into its component segments.

parse_toolset_path

parse_toolset_path(path: str) -> typing.Dict[str, str]

Parses a toolset path into its component segments.

run_session

run_session(
    request: typing.Optional[
        typing.Union[google.cloud.ces_v1.types.session_service.RunSessionRequest, dict]
    ] = None,
    *,
    retry: typing.Optional[
        typing.Union[
            google.api_core.retry.retry_unary.Retry,
            google.api_core.gapic_v1.method._MethodDefault,
        ]
    ] = _MethodDefault._DEFAULT_VALUE,
    timeout: typing.Union[float, object] = _MethodDefault._DEFAULT_VALUE,
    metadata: typing.Sequence[typing.Tuple[str, typing.Union[str, bytes]]] = ()
) -> google.cloud.ces_v1.types.session_service.RunSessionResponse

Initiates a single-turn interaction with the CES agent within a session.

# This snippet has been automatically generated and should be regarded as a
# code template only.
# It will require modifications to work:
# - It may require correct/in-range values for request initialization.
# - It may require specifying regional endpoints when creating the service
#   client as shown in:
#   https://googleapis.dev/python/google-api-core/latest/client_options.html
from google.cloud import ces_v1

def sample_run_session():
    # Create a client
    client = ces_v1.SessionServiceClient()

    # Initialize request argument(s)
    config = ces_v1.SessionConfig()
    config.session = "session_value"

    inputs = ces_v1.SessionInput()
    inputs.text = "text_value"

    request = ces_v1.RunSessionRequest(
        config=config,
        inputs=inputs,
    )

    # Make the request
    response = client.run_session(request=request)

    # Handle the response
    print(response)
Parameters
Name Description
request Union[google.cloud.ces_v1.types.RunSessionRequest, dict]

The request object. Request message for SessionService.RunSession.
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, Union[str, bytes]]]

Key/value pairs which should be sent along with the request as metadata. Normally, each value must be of type str, but for metadata keys ending with the suffix -bin, the corresponding values must be of type bytes.
Returns
Type Description
google.cloud.ces_v1.types.RunSessionResponse Response message for SessionService.RunSession.

session_path

session_path(project: str, location: str, app: str, session: str) -> str

Returns a fully-qualified session string.

stream_run_session

stream_run_session(
    request: typing.Optional[
        typing.Union[google.cloud.ces_v1.types.session_service.RunSessionRequest, dict]
    ] = None,
    *,
    retry: typing.Optional[
        typing.Union[
            google.api_core.retry.retry_unary.Retry,
            google.api_core.gapic_v1.method._MethodDefault,
        ]
    ] = _MethodDefault._DEFAULT_VALUE,
    timeout: typing.Union[float, object] = _MethodDefault._DEFAULT_VALUE,
    metadata: typing.Sequence[typing.Tuple[str, typing.Union[str, bytes]]] = ()
) -> typing.Iterable[google.cloud.ces_v1.types.session_service.RunSessionResponse]

Initiates a single-turn interaction with the CES agent. Uses server-side streaming to deliver incremental results and partial responses as they are generated.

By default, complete responses (e.g., messages from callbacks or full LLM responses) are sent to the client as soon as they are available. To enable streaming individual text chunks directly from the model, set xref_enable_text_streaming to true.

# This snippet has been automatically generated and should be regarded as a
# code template only.
# It will require modifications to work:
# - It may require correct/in-range values for request initialization.
# - It may require specifying regional endpoints when creating the service
#   client as shown in:
#   https://googleapis.dev/python/google-api-core/latest/client_options.html
from google.cloud import ces_v1

def sample_stream_run_session():
    # Create a client
    client = ces_v1.SessionServiceClient()

    # Initialize request argument(s)
    config = ces_v1.SessionConfig()
    config.session = "session_value"

    inputs = ces_v1.SessionInput()
    inputs.text = "text_value"

    request = ces_v1.RunSessionRequest(
        config=config,
        inputs=inputs,
    )

    # Make the request
    stream = client.stream_run_session(request=request)

    # Handle the response
    for response in stream:
        print(response)
Parameters
Name Description
request Union[google.cloud.ces_v1.types.RunSessionRequest, dict]

The request object. Request message for SessionService.RunSession.
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, Union[str, bytes]]]

Key/value pairs which should be sent along with the request as metadata. Normally, each value must be of type str, but for metadata keys ending with the suffix -bin, the corresponding values must be of type bytes.
Returns
Type Description
Iterable[google.cloud.ces_v1.types.RunSessionResponse] Response message for SessionService.RunSession.

tool_path

tool_path(project: str, location: str, app: str, tool: str) -> str

Returns a fully-qualified tool string.

toolset_path

toolset_path(project: str, location: str, app: str, toolset: str) -> str

Returns a fully-qualified toolset string.