BEGIN:VCALENDAR VERSION:2.0 PRODID:-//CERN//INDICO//EN BEGIN:VEVENT SUMMARY:test DTSTART:20260410T030000Z DTEND:20260410T050000Z DTSTAMP:20261105T144800Z UID:indico-event-29331@indico.ihep.ac.cn DESCRIPTION:https://indico.ihep.ac.cn/event/29331/ URL:https://indico.ihep.ac.cn/event/29331/ END:VEVENT END:VCALENDAR