[CalendarServer-users] Implementing OpenDirectory Autocompletion in LDAP

I am writing an LDAP directory module that works with the CalenderServer-1.2 branch/tag. It is based on the appleopendirectory.py module and python-ldap. Right now it has some very basic functionality - but does work. One of the main features I would like to get working is the attendee auto complete. My question is, what is iCal looking for when filling in autocomplete information? Is there a particular attribute that I need to add to my ldap server? Also, if anyone would be willing to give me an Opendirectory ldif of a user, location, group and resource it would really help me out with this project. Thanks, Brandon