{ 'UID' => '95CCBF98-3685-11D9-8CA5-000D93C45D90', 'idref' => '7CCE8555-3516-11D9-8A43-000D93C45D90', 'DTSTAMP' => \%DateTime, 'DTEND' => \%DateTime, 'DTSTART' => \%DateTime, ... },