What 'role' should a resource-type cutype have?

Hi, 

I can't decide upon the ICAL role that a ECalComponentAttendee should
have if cutype is a resource. I am currently doing:

	attendee->cutype = ICAL_CUTYPE_RESOURCE;
	attendee->role = ICAL_ROLE_NONPARTICIPANT; // what else?

Is that the best thing to do? - Thoughts?


Thanks,
  jules