def _setupChild(self, *args, **kwargs):
        raise NotImplementedError()
Sets a preference, writing it to
dataset/ETHPy150Open kuri65536/python-for-android/python-modules/twisted/twisted/internet/process.py/_BaseProcess._setupChild--crossover with--dataset/ETHPy150Open grahamgilbert/Crypt/Crypt/FVUtils.py/set_pref