METHOD: REQUEST BEGIN:VCALENDAR PRODID:-//Microsoft Corporation//Outlook 9.0 MIMEDIR//ENVERSION:1.0 BEGIN:VEVENT DTSTART:20230531T000000Z DTEND:20230602T000000Z SUMMARY;ENCODING=QUOTED-PRINTABLE:ciooe DESCRIPTION;ENCODING=QUOTED-PRINTABLE:Beijing, China PRIORITY:3 END:VEVENT END:VCALENDAR