addCalendarEventAttendees: CalendarEvent!
This mutation is used to add an additional attendee to a calendar event. **Returns:** Returns calendar event details.
wholeSeries: Boolean!
The boolean that determines if the whole series of reoccurring events is updated or just the single selected event.
id: UUID!
The calendar event ID used to search the database.
attendeeKind: CalendarEventAttendeeKind!
The type of attendee.
input: [CalendarEventAttendeeInput!]!
The attendee details