def METHOD_NAME(client=None, bqstorage_client=None):
    """Construct a DB-API connection to Google BigQuery.
    Args:
        client (Optional[google.cloud.bigquery.Client]):
            A REST API client used to connect to BigQuery. If not passed, a
            client is created using default options inferred from the environment.
        bqstorage_client(\
            Optional[google.cloud.bigquery_storage_v1.BigQueryReadClient] \
        ):
            A client that uses the faster BigQuery Storage API to fetch rows from
            BigQuery. If not passed, it is created using the same credentials
            as ``client`` (provided that BigQuery Storage dependencies are installed).
            If both clients are available, ``bqstorage_client`` is used for
            fetching query results.
    Returns:
        google.cloud.bigquery.dbapi.Connection: A new DB-API connection to BigQuery.
    """
    return Connection(client, bqstorage_client)