sa-learn against imap folders eg cyrus directory

[Johannes russek]

hi ye guys.
i've got a cyrus 2.1 server up and running. my users do all have a
INBOX.spam directory where they can place the spam and where sieve puts the
spam spamassassin detected.
now i want of course train spamassassin with that folders.
are there any scripts already written for doing so?
i found something for running against maildir, but cyrus doesnt use maildir
:)
regards, johannes