in src/history/TimerFiredEvent.ts [10:23]
constructor(options: HistoryEventOptions) {
super(HistoryEventType.TimerFired, options.eventId, options.isPlayed, options.timestamp);
if (options.timerId === undefined) {
throw new Error("TimerFiredEvent needs a timer id provided.");
}
if (options.fireAt === undefined) {
throw new Error("TimerFiredEvent needs a fireAt time provided.");
}
this.TimerId = options.timerId;
this.FireAt = options.fireAt;
}