BEGIN:VCALENDAR
BEGIN:VEVENT
ATTENDEE;DELEGATED-TO="mailto:jdoe@example.com","mailto:jqpublic@example.com":mailto:jsmith@example.com
ATTENDEE;DELEGATED-FROM="mailto:jsmith@example.com","mailto:jdoe@example.com":mailto:jdoe@example.com
ATTENDEE;MEMBER="mailto:projectA@example.com","mailto:projectB@example.com":mailto:janedoe@example.com
UID:list
DESCRIPTION:These are all the parameters which might come as a list.
END:VEVENT
BEGIN:VEVENT
ATTENDEE;DELEGATED-TO="mailto:jdoe@example.com":mailto:jsmith@example.com
ATTENDEE;DELEGATED-FROM="mailto:jsmith@example.com":mailto:jdoe@example.com
ATTENDEE;MEMBER="mailto:projectA@example.com":mailto:janedoe@example.com
UID:single
DESCRIPTION:These are all the parameters which might come as a list but here they only have one value.
END:VEVENT
END:VCALENDAR