/**
* Set brightness
*
* @param int $level
* Brightness level
*
* @return self This object
*/
public function setBrightness($level = SetLightState::BRIGHTNESS_MAX)
{
$x = new SetGroupState($this);
$y = $x->brightness((int) $level);
$this->client->sendCommand($y);
$this->attributes->action->bri = (int) $level;
return $this;
}
