def nextpart(self):
        self._fp.write("\n--" + self._boundary + "\n")
        return self.__class__(self._fp)
Read a service instance's configuration for marathon.
dataset/ETHPy150Open Southpaw-TACTIC/TACTIC/src/context/client/tactic-api-python-4.0.api04/Lib/MimeWriter.py/MimeWriter.nextpart--crossover with--dataset/ETHPy150Open Yelp/paasta/paasta_tools/marathon_tools.py/load_marathon_service_config