public Task SendMessage(Message message)
 {
     return(Task.Run(() =>
     {
         LoggerIO.PrintEvent(nameof(SendMessage),
                             $@"sender '{message.Sender}' content '{message.Text}' date '{message.Date}'");
         Clients.All.addMessage(message);
     }));
 }
 private void OverideEvents(string method, string id) => LoggerIO.PrintEvent(method, $"Hub {method} {id}");