public function title($sub = '', $title = 'Vinala Lumos')
    {
        if ($title != '') {
            $this->console->line("\n".$title);
            //
            $underline = '';
            for ($i = 0; $i < strlen($title); $i++) {
                $underline .= '=';
            }
            //
            $this->console->line($underline);
        }
        //
        if ($sub != '') {
            $this->console->line("\n".$sub);
        }
    }