BEGIN:VCALENDAR
VERSION:2.0
BEGIN:VEVENT
URL:https://www.networkinaction.com/index.php/events/viewevent/3625-test-event?groupid=112 
DTSTART:20201215T213000
DTEND:20201215T220000
SUMMARY:test event
DESCRIPTION:testing this event in multiple groups
LOCATION:770 S Post Oak Ln
END:VEVENT
END:VCALENDAR