public function transformTextCard(AbstractMessage $message)
    {
        return [
            'msgtype'  => 'textcard',
            'textcard' => [
                'title'       => $message->get('title'),
                'description' => $message->get('description'),
                'url'         => $message->get('url'),
                'btntxt'      => $message->get('btntxt'),
            ],
        ];
    }