public void OnError(Exception ex, EventAWithBase @event)
 {
 }
 Task IHandleEventsOf <EventAWithBase> .Handle(EventAWithBase @event)
 {
     return(Task.Run(() => Method = "EventAWithBase"));
 }
 public Task Handle(EventAWithBase @event)
 {
     return(Task.Run(() => Method = "EventAWithBase"));
 }