def _call_fut(self, table_name, rows):
        from google.cloud.bigtable.table import _mutate_rows_request

        return _mutate_rows_request(table_name, rows)
    def _call_fut(self, table_name, rows):
        from google.cloud.bigtable.table import _mutate_rows_request

        return _mutate_rows_request(table_name, rows)