BEGIN:VCALENDAR
VERSION:2.0
PRODID:icalendar-ruby
CALSCALE:GREGORIAN
BEGIN:VEVENT
DTSTAMP:20260827T050308Z
UID:9ab89643-c748-4d80-9919-82f73aced5fd
DTSTART:20260713T070000Z
DTEND:20260713T150000Z
SUMMARY:Event A
URL;VALUE=URI:https://superuser.com/questions/1336054/how-to-detect-if-a-ne
 twork-is-blocking-outgoing-ports
END:VEVENT
END:VCALENDAR