public async void StartWorkAsync(CancellationToken token)
        {
            while (!token.IsCancellationRequested)
            {
                var item = _storage.GetNextTweetToAnalyse();
                if (item != null)
                {
                    var res = await _classifier.SentimentAnalysisAsync(item);

                    //var result = await Task<string>.Run(() => _datumBoxApi.TwitterSentimentAnalysis(item.Text));



                    _storage.AddAnalysis(item, res);
                }
                else
                {
                    await Task.Delay(100);
                }
            }
        }