def to_json(self):
    raise NotImplementedError("to_json() not implemented in %s" %
                              self.__class__)
Set "From " line, formatting and appending time_ if specified.
dataset/ETHPy150Open AppScale/appscale/AppServer/google/appengine/ext/mapreduce/output_writers.py/OutputWriter.to_json--crossover with--dataset/ETHPy150Open babble/babble/include/jython/Lib/mailbox.py/_mboxMMDFMessage.set_from