def _push_raw_buffer(self, raw_buffer):
        for callback in self._recv_callbacks:
            callback(raw_buffer)
When L{NNTPServer} receives a I{GROUP} command, it sends a line of
dataset/ETHPy150Open mne-tools/mne-python/mne/realtime/client.py/RtClient._push_raw_buffer--crossover with--dataset/ETHPy150Open nlloyd/SubliminalCollaborator/libs/twisted/news/test/test_nntp.py/NNTPTestCase.test_GROUP