public IEnumerable <HistoryEvent> TimerStartFailedGraph(Identity timerId, string cause) { var historyEvents = new List <HistoryEvent>(); var eventIds = EventIds.TimerStartFailedIds(ref _currentEventId); historyEvents.Add(new HistoryEvent() { EventType = EventType.StartTimerFailed, EventId = eventIds.EventId(EventIds.Failed), StartTimerFailedEventAttributes = new StartTimerFailedEventAttributes() { TimerId = timerId.Id, Cause = cause }, }); return(historyEvents); }