def _request_next_buffer(self):
    self._buffer_future = None
    next_offset = self._offset + self._buffer.remaining()
    if not hasattr(self, '_file_size') or next_offset != self._file_size:
      self._buffer_future = self._get_segment(next_offset,
                                              self._buffer_size)
Request next buffer.
dataset/ETHPy150Open GoogleCloudPlatform/billing-export-python/cloudstorage/storage_api.py/ReadBuffer._request_next_buffer