How to use custom JWT credentials for api testing

Building a some custom REST endpoints and I am trying to get some automated tests written.

I see Tutor has some JWT overrides that can be set.

https://docs.tutor.overhang.io/configuration.html#jwts

The docs say

These parameters may be changed in order to create a custom user login for testing purposes.

I am not exactly sure how to set them. The API should have an api client id and client secret key.