Checkmk REST API (checkmk-v2), endpoint for Customers

I have noticed that the REST API documentation (v2.1.0p39), accessible through help-> REST API documentation is not a static document, but rather is dependent on the configuration.
We do have however customers configured under Setup → Users → Customers.
For automation purposes, provisioning / de-provisioning we would like to basically have crud capabilities for Customers. I can’t however find the API endpoints for those.

Does this mean that there aren’t any?
Or there are and i’m not looking in the right place?

In case they aren’t there, i suppose this would become an FRQ for the next version?

Kind Regards,
Marco.