public NewsFeed GetNewsFeed(string _userToken, DateTime _start, DateTime _end, string _sourceIds) { try { var request = RequestBuilder.BuildNewsFeedRequest(_userToken, m_currentVkVersion, _start, _end, _sourceIds); var responseData = m_requestExecutor.Execute(request); var getVideoFunc = new Func <VideoInfo, string>((_arg) => { try { var getVideoRequest = RequestBuilder.BuildGetVideoRequest(_userToken, m_currentVkVersion, _arg.OwnerId, _arg.VideoId); var videoResponseData = m_requestExecutor.Execute(getVideoRequest); return(videoResponseData); } catch (Exception ex) { throw new VkException("Failed to get video", ex); } }); var newsFeed = m_newsFeedDeserializer.Deserialize(responseData, getVideoFunc); return(newsFeed); } catch (Exception ex) { throw new VkException("Failed to get newsfeed", ex); } }