public ExampleHub()
        {
            lock (_lock)
            {
                if (!_isObserving)
                {
                    Observable.Interval(TimeSpan.FromSeconds(1))
                    .Subscribe(i => AllClients.PrintString("Everyone gets the time! " + DateTime.Now.ToString()));

                    _isObserving = true;
                }
            }


            Observable.Interval(TimeSpan.FromSeconds(1))
            .Subscribe(i => CurrentClient.PrintString("But you get your id: " + Context.ConnectionId));
        }