BoxKite.Twitter.TwitterConnection.GetMyTweets_Failover C# (CSharp) Метод

        private async Task<long> GetMyTweets_Failover(long sinceid)
        {
           var largestseenid = sinceid;
            
            var hometl = await TwitterSession.GetUserTimeline(userId: AccountDetails.UserId, count: _pagingSize, sinceId: sinceid);
            if (!hometl.OK) return largestseenid;

            foreach (var tweet in hometl.Where(tweet => tweet.Id > sinceid))
            {
                largestseenid = tweet.Id;
                _mytweets.OnNext(tweet);
            }
            return largestseenid;
        }