private function _fetch($attrName, $default = NULL) {
        return $this->hasAttribute($attrName) ? $this->getAttribute($attrName)->getValue() : $default;
    }
private function _fetch($attrName, $default = NULL) {
        return $this->hasAttribute($attrName) ? $this->getAttribute($attrName)->getValue() : $default;
    }
private function _fetch ( $ attrName , $ default = NULL ) { return $ this -> hasAttribute ( $ attrName ) ? $ this -> getAttribute ( $ attrName ) -> getValue ( ) : $ default ; }
Fetches value from attributes
@param $attrName
@param null $default
@return mixed|null
@internal
Fetches value from attributes