How to use the angular-calendar.CalendarEventTimesChangedEventType.Drop function in angular-calendar

onEventDropped(dropEvent: { dropData?: { event?: CalendarSchedulerEvent } }, segment: SchedulerViewHourSegment): void {
        if (dropEvent.dropData && dropEvent.dropData.event) {
            this.eventTimesChanged.emit({
                type: CalendarEventTimesChangedEventType.Drop,
                event: dropEvent.dropData.event,
                newStart: segment.date,
                newEnd: null
            });
        }
    }
}