Update API for reservations?

Just saw this thread: Indico API : import room reservation - #10 by ThiefMaster

And it looks like everything I need is available under these urls:

POST: /rooms/api/booking/create
PATCH: /rooms/api/bookings/<id>
POST: /rooms/api/bookings/<id>/cancel

What’s the status of these end-points?

They are not documented, which I would normally assume means that they are not “stable”. Is it reasonable to use these but treat them as beta: i.e. there’s some small risk that their contract / signature might change in a future release? Are there plans to document them and have them replace the old end-point documented here:/api/roomBooking/bookRoom.TYPE?

Thanks!