@classmethod
  def from_json(cls, state):
    """Creates an instance of the InputReader for the given state.

    Args:
      state: The InputReader state as returned by to_json.

    Returns:
      An instance of the InputReader that can resume iteration.
    """
    raise NotImplementedError(cls % "from_json() not implemented in %s")
dataset/ETHPy150Open GoogleCloudPlatform/appengine-mapreduce/python/src/mapreduce/api/map_job/input_reader.py/InputReader.from_json/swapped operands of `%`