PHPDaemon\SockJS\Methods\Generic::onFinish PHP Method

    public function onFinish()
    {
        $this->appInstance->unsubscribe('s2c:' . $this->sessId, [$this, 's2c']);
        $this->appInstance->unsubscribe('w8in:' . $this->sessId, [$this, 'w8in']);
        Timer::remove($this->heartbeatTimer);
        if ($this->heartbeatOnFinish) {
            $this->sendFrame('h');
        }
        parent::onFinish();
    }