Add option to skip consent for 1st party clients?

Hello, I'm just in the process of integrating rodauth-oauth into a project of mine and was wondering how I might be able to skip asking the user for consent since it's first party client. They are already my users so I was hoping to be able to skip through but yet still create a valid access token. I'm using OpenID in this particular example.

There are some other OID providers doing similiar things like this, for example. When the client is created, there's an option is_first_party, that can be set.

Any insights?