BEGIN:VCALENDAR
PRODID:-//Emacs//NONSGML icalendar.el//EN
VERSION:2.0
BEGIN:VEVENT
SUMMARY:Testing legacy `icalendar-import-format' function
DESCRIPTION:described
CLASS:private
LOCATION:somewhere
ORGANIZER;CN="Baz Foo":mailto:baz@example.com
STATUS:CONFIRMED
URL:http://example.com/foo/baz
UID:some-unique-id-here
DTSTART;VALUE=DATE-TIME:20250919T090000
DTEND;VALUE=DATE-TIME:20250919T113000
END:VEVENT
END:VCALENDAR