public ChannelSearchParameters AddUsersFilter(IEnumerable <uint> userIds, ArraySearchOption searchOption)
        {
            var userIdsStr = string.Join(";", userIds);

            AddSearchFilter($"userId:{searchOption}:{userIdsStr}");
            return(this);
        }
        public ChannelSearchParameters AddChannelsFilter(IEnumerable <uint> channelIds, ArraySearchOption searchOption)
        {
            var channelIdsStr = string.Join(";", channelIds);

            AddSearchFilter($"id:{searchOption}:{channelIdsStr}");
            return(this);
        }