def ban(self, roomJID, entity, reason=None, sender=None):
        return self._setAffiliation(roomJID, entity, 'outcast',
                                    reason=reason, sender=sender)
ICircuitListener API
dataset/ETHPy150Open ralphm/wokkel/wokkel/muc.py/MUCClientProtocol.ban--crossover with--dataset/ETHPy150Open meejah/txtorcon/examples/circuit_failure_rates.py/CircuitFailureWatcher.circuit_failed