Calendars True comment vevent organizer vevent uid vevent seq vevent recurrence-id vevent transp vevent attendee vevent related vevent rrule vevent dtend vevent duration vevent valarm vevent vtimezone vevent priority vevent location vevent exrule vevent resources vevent rstatus vevent status vevent exdate vevent dtstamp vevent description vevent rdate vevent dtstart vevent class vevent x-openobject-model vevent created vevent url vevent summary vevent contact vevent status vtodo comment vtodo attendee vtodo valarm vtodo description vtodo sequence vtodo vtimezone vtodo url vtodo completed vtodo percent-complete vtodo due vtodo summary vtodo priority vtodo exdate vtodo location vtodo exrule vtodo duration vtodo organizer vtodo dtstart vtodo rrule vtodo class vtodo uid vtodo cn attendee sent-by attendee language attendee delegated-from attendee member attendee cutype attendee role attendee partstat attendee delegated-to attendee dir attendee rsvp attendee attendee alarm trigger_duration alarm description alarm attach alarm trigger_occurs alarm trigger_interval alarm summary alarm duration alarm repeat alarm action alarm trigger_related alarm