def num_records_produced(self, name=None):
    """Returns the number of records this reader has produced.

    Args:
      name: A name for the operation (optional).

    Returns:
      An int64 Tensor.

    """
    num_records = [r.num_records_produced() for r in self._readers]
    return math_ops.add_n(num_records, name=name)