Yii2 websocket connect in controller?

Question

Yii

Hello! people tell me how to use yii2 websockets? I installed from here: https://github.com/consik/yii2-websocket
Everything works great. But there was a need to send commands and messages not from javascript, but from php. I can't figure out how to connect a socket in the controller and apply it. Tried like this:

public function action***() {
            $event = new WSClientMessageEvent;
            $event->message = 'awdawdawd';
            $this->trigger(self::EVENT_CLIENT_MESSAGE, $event);
}

does not work .... Tell me how to use them?