Constraining RTFM search by queue when updating ticket

RT Developers
1

We operate RT in 16 languages. I’ve set up a queue per language, and a
corresponding RTFM class with an identical name.

I’m passing the queue name into the RTFM BeforeMessageBox callback on
Update.html.

Looks like I’ll need to constrain the RTFM search by calling
$articles_basic->Limit.

Any hints on the appropriate parameters need to constrain searching for
RTFM_Content by particular named class?