public static function send($username, $word)
    {
        if (!$word || !$username) {
            return false;
        }

        return static::sendMsg([
            'Type'         => 1,
            'Content'      => $word,
            'FromUserName' => vbot('myself')->username,
            'ToUserName'   => $username,
            'LocalID'      => time() * 1e4,
            'ClientMsgId'  => time() * 1e4,
        ]);
    }