def remove_backend(self, name):
        self._encoders.pop(name, None)
        self._decoders.pop(name, None)
        self._decoder_exceptions.pop(name, None)
        self._decoder_options.pop(name, None)
        self._encoder_options.pop(name, None)
        if name in self._backend_names:
            self._backend_names.remove(name)
        self._verified = bool(self._backend_names)
Add the activities to the feed
dataset/ETHPy150Open jsonpickle/jsonpickle/jsonpickle/backend.py/JSONBackend.remove_backend--crossover with--dataset/ETHPy150Open tschellenbach/Stream-Framework/stream_framework/feed_managers/base.py/add_operation