<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def state(self):
 """Returns the current LED state by querying the remote controller."""

    ev = self._query_waiters.request(self.__do_query_state)
    ev.wait(1.0)
    return self._state