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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def batch_create_read_session_streams( self, session, requested_streams, retry=google.api_core.gapic_v1.method.DEFAULT, timeout=google.api_core.gapic_v1.method.DEFAULT, metadata=None, ):
 """ Creates additional streams for a ReadSession. This API can be used to dynamically adjust the parallelism of a batch processing task upwards by adding additional workers. Example: Args: session (Union[dict, ~google.cloud.bigquery_storage_v1beta1.types.ReadSession]):
 Required. Must be a non-expired session obtained from a call to CreateReadSession. Only the name field needs to be set. If a dict is provided, it must be of the same form as the protobuf message :class:`~google.cloud.bigquery_storage_v1beta1.types.ReadSession` requested_streams (int):
 Required. Number of new streams requested. Must be positive. Number of added streams may be less than this, see CreateReadSessionRequest for more information. retry (Optional[google.api_core.retry.Retry]):
 A retry object used to retry requests. If ``None`` is specified, requests will not be retried. timeout (Optional[float]):
 The amount of time, in seconds, to wait for the request to complete. Note that if ``retry`` is specified, the timeout applies to each individual attempt. metadata (Optional[Sequence[Tuple[str, str]]]):
 Additional metadata that is provided to the method. Returns: A :class:`~google.cloud.bigquery_storage_v1beta1.types.BatchCreateReadSessionStreamsResponse` instance. Raises: google.api_core.exceptions.GoogleAPICallError: If the request failed for any reason. google.api_core.exceptions.RetryError: If the request failed due to a retryable error and retry attempts failed. ValueError: If the parameters are invalid. """

        # Wrap the transport method to add retry and timeout logic.
        if "batch_create_read_session_streams" not in self._inner_api_calls:
            self._inner_api_calls[
                "batch_create_read_session_streams"
            ] = google.api_core.gapic_v1.method.wrap_method(
                self.transport.batch_create_read_session_streams,
                default_retry=self._method_configs[
                    "BatchCreateReadSessionStreams"
                ].retry,
                default_timeout=self._method_configs[
                    "BatchCreateReadSessionStreams"
                ].timeout,
                client_info=self._client_info,
            )

        request = storage_pb2.BatchCreateReadSessionStreamsRequest(
            session=session, requested_streams=requested_streams
        )
        if metadata is None:
            metadata = []
        metadata = list(metadata)
        try:
            routing_header = [("session.name", session.name)]
        except AttributeError:
            pass
        else:
            routing_metadata = google.api_core.gapic_v1.routing_header.to_grpc_metadata(  # pragma: no cover
                routing_header
            )
            metadata.append(routing_metadata)  # pragma: no cover

        return self._inner_api_calls["batch_create_read_session_streams"](
            request, retry=retry, timeout=timeout, metadata=metadata
        )