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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def __start(self):
 # pragma: no cover """Starts the real-time engine that captures events."""


        assert not self._listener_thread

        self._listener_thread = threading.Thread(target=self.__run_listener,
                                                 name='clearly-listener')
        self._listener_thread.daemon = True
        self._listener_thread.start()
        self._wait_event.wait()
        self._wait_event.clear()