public function __construct($modelId = CONTENT_MODEL_JSON)
 {
     parent::__construct($modelId, [CONTENT_FORMAT_JSON]);
 }
 /**
  * @param string $modelId
  */
 public function __construct($modelId = CONTENT_MODEL_JAVASCRIPT)
 {
     parent::__construct($modelId, [CONTENT_FORMAT_JAVASCRIPT]);
 }
 /**
  * @param string $modelId
  */
 public function __construct($modelId = CONTENT_MODEL_CSS)
 {
     parent::__construct($modelId, array(CONTENT_FORMAT_CSS));
 }