def _trigger(self, event_name, *args, **kwargs):
        self.log('event: %s' % event_name, *args)
        for f in self._events[event_name]:
            f(*args, **kwargs)
Calling :method:`respond` causes the deferred deferred returned by
dataset/ETHPy150Open jeffh/sniffer/sniffer/scanner/base.py/BaseScanner._trigger--crossover with--dataset/ETHPy150Open ClusterHQ/flocker/flocker/testtools/test/test_amp.py/DelayedAMPClientTests.test_forwards_response