public static function _($render, $ns = __NAMESPACE__)
    {
        $html   = self::getInstance();
        $render = Str::low($render);
        $alias  = $ns . '\\' . $render;

        if (!isset($html[$alias])) {
            $html[$alias] = self::_register($render, $ns);
        }

        return $html[$alias];
    }