@classmethod
  def from_json(cls, state):
    raise NotImplementedError("from_json() not implemented in %s" % cls)
Creates an instance of the OutputWriter for the given json state.
dataset/ETHPy150Open GoogleCloudPlatform/appengine-mapreduce/python/src/mapreduce/api/map_job/output_writer.py/OutputWriter.from_json