how to split IMAP mail into local nnml group?

[jacobs@genehack.org (John S. J. Anderson)]

I'm not even sure if this is possible, but I figured it can't hurt to
ask.

Currently, I use IMAP with Gnus. I have an extensive
nnimap-split-fancy list, one section of which detects mail from
various people and dumps it into an IMAP folder called
INBOX.people-incoming. I read the mail, respond or not, and then
manually move the mail to person-specific nnml folders (on the local
disk). So, mail from Bob or Alice goes into
nnimap:INBOX.people_incoming, then I move it to nnml:Bob or
nnml:Alice, as appropriate.

If I wanted to skip the manual move step, so that mail from Bob or
Alice would be pulled off the IMAP server and stuck right into
nnml:Bob or nnml:Alice, how would I (can I?) do that?

Thanks,
john.
-- 
 Susie: You'd get a good grade without doing any work.  
Calvin: So?  
 Susie: It's wrong to get rewards you haven't earned.  
Calvin: I've never heard of anyone who couldn't live with that.