def test_document_understanding_service_client_get_transport_class():
    transport = DocumentUnderstandingServiceClient.get_transport_class()
    available_transports = [
        transports.DocumentUnderstandingServiceGrpcTransport,
    ]
    assert transport in available_transports

    transport = DocumentUnderstandingServiceClient.get_transport_class("grpc")
    assert transport == transports.DocumentUnderstandingServiceGrpcTransport
def test_client_withDEFAULT_CLIENT_INFO():
    client_info = gapic_v1.client_info.ClientInfo()

    with mock.patch.object(
        transports.DocumentUnderstandingServiceTransport, "_prep_wrapped_messages"
    ) as prep:
        client = DocumentUnderstandingServiceClient(
            credentials=credentials.AnonymousCredentials(), client_info=client_info,
        )
        prep.assert_called_once_with(client_info)

    with mock.patch.object(
        transports.DocumentUnderstandingServiceTransport, "_prep_wrapped_messages"
    ) as prep:
        transport_class = DocumentUnderstandingServiceClient.get_transport_class()
        transport = transport_class(
            credentials=credentials.AnonymousCredentials(), client_info=client_info,
        )
        prep.assert_called_once_with(client_info)