Possible to add beta Firebase Hosting API?

Would it possible to add the beta Firebase Hosting API to `googleapis_beta`? There is a [discovery doc here](https://firebasehosting.googleapis.com/$discovery/rest?version=v1beta1).

In the `googleapis` package a [FirebaseHostingAPI](https://pub.dev/documentation/googleapis/latest/firebasehosting.v1/firebasehosting.v1-library.html) object has the one member, of type `OperationsResource` which seems to be a low level abstraction and I can't access the available endpoints described in [Firebase Hosting API](https://firebase.google.com/docs/reference/hosting/rest).

Thanks!