def set_state(self, state):
        """
        :param state:   a boolean of true (on) or false ('off')
        :return: nothing
        """
        values = {"desired_state": {"locked": state}}
        response = self.api_interface.local_set_state(self, values)
        self._update_state_from_response(response)
:param state:   a boolean of true (on) or false ('off')
        :return: nothing