def _listen(self):
        raise NotImplementedError('This method must be implemented in a '
                                  'subclass.')  # pragma: no cover
Any monkey patches introduced by a test using C{patch()} are reverted
dataset/ETHPy150Open miguelgrinberg/python-socketio/socketio/pubsub_manager.py/PubSubManager._listen--crossover with--dataset/ETHPy150Open kuri65536/python-for-android/python-modules/twisted/twisted/trial/test/test_tests.py/TestMonkeyPatchSupport.test_patchRestoredAfterRun