[Dovecot] Imap Logout format

He all,

I'm migrating a big system from Courier to Dovecot and we have a custom analyzer logger system to Courier logs.

We have got the very similar specs on IMAP LOGIN log, but I can't get the Logout format.

Courier write like that:

... imapd: LOGOUT, user=luism.martinez, ip=[::ffff:127.0.0.1], headers=0, body=0, rcvd=131, sent=632, time=0

¿Is there any Variables on imap_logout_format to get headers, body and time vars?