def finish(self):
        """Submit a single `multipart/mixed` request w/ deferred requests.

        :rtype: list of tuples
        :returns: one ``(headers, payload)`` tuple per deferred request.
        """
        headers, body = self._prepare_batch_request()

        url = self.API_BASE_URL % '%s/batch'

        # Use the private ``_connection`` rather than the public
        # ``.connection``, since the public connection may be this
        # current batch.
        response, content = self._client._connection._make_request(
            'POST', url, data=body, headers=headers)
        responses = list(_unpack_batch_response(response, content))
        self._finish_futures(responses)
        return responses
dataset/ETHPy150Open GoogleCloudPlatform/gcloud-python/gcloud/storage/batch.py/Batch.finish/swapped operands of `%`