:param direction: a string one of ["forward", "reverse"]
        :return: nothing

def set_fan_direction(self, direction):
        """
        :param direction: a string one of ["forward", "reverse"]
        :return: nothing
        """
        desired_state = {"direction": direction}

        response = self.api_interface.set_device_state(self, {
            "desired_state": desired_state
        })

        self._update_state_from_response(response)