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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 unlock(self):
 """Unlock the doors and extend handles where applicable."""

        if self.__lock_state:
            data = self._controller.command(self._id, 'door_unlock',
                                            wake_if_asleep=True)
            if data['response']['result']:
                self.__lock_state = False
            self.__manual_update_time = time.time()