public static function addGraph($data)
    {
        self::registerView();
        
        if (is_scalar($data)) {
            throw new Exception("Data must be either an array or an object of type luya\web\jsonld\BaseThing.");
        }
        
        Yii::$app->view->params['@context'] = 'https://schema.org';
        Yii::$app->view->params['@graph'][] = $data;
        
        return $data;
    }