associate
fun associateByUid(calendar: Calendar, componentName: String): Map<String?, AssociatedComponents<T>>
Splits iCalendar components by UID and classifies them as main events (without RECURRENCE-ID) or exceptions (with RECURRENCE-ID).
When there are multiple components with the same UID and RECURRENCE-ID, but different SEQUENCE, this method keeps only the ones with the highest SEQUENCE.