Dovecot and Oauth

Hi all,

I am considering expanding a mail server to support Oauth with Google. I have read through the following: https://wiki.dovecot.org/PasswordDatabase/oauth2 however, it doesn't work and appears to me to be missing important information, the least of which is API authorisation. Searching with Google, I can't find any more information beyond what amounts to C&P'ing of the above link.

Has anyone successfully deployed Oauth with Google and could they please send me their config files?

Thanks,

Michael