public void SetGroupMemberSpecialTitle(string toGroup, string toQq, string specialTitle, TimeSpan duration)
        {
            var total = duration == TimeSpan.MaxValue ? -1 : (long)duration.TotalSeconds;

            _coolQApi.CQ_setGroupSpecialTitle(AuthCode, Convert.ToInt64(toGroup), Convert.ToInt64(toQq), specialTitle,
                                              total);
        }