Hello,
thank you for the module.

I want to use friendlist_api functions, more specifically, hook_friendlist_relations(). It's pretty obvious from the code, when and how the hook is fired. But it has 9 arguments, and they are undocumented. For some of them, you can make a guess (like user ids), what are they, but it could really help the developers if you document all arguments and possible values somewhere in the code (or here, which would be very helpful for me personally :).

Thanks.