Krucas\Notification\NotificationsBag::addToGrouping PHP 메소드

    public function addToGrouping($type)
    {
        if (!$this->typeIsAvailable($type)) {
            return $this;
        }
        if (!in_array($type, $this->groupForRender)) {
            $this->groupForRender[] = $type;
        }
        return $this;
    }