Postman API to manage multi-protocol collections

I would like to programmatically manage a shared collection of gRPC requests. It looks like the current Postman API only supports managing HTTP collections, is that correct? I.e. this endpoint does not return multi-protocol collections in my workspace: Postman

Is there any way for me to generate a collection of gRPC requests through the API?

I think not yet but the only way i can think is create the gRPC req manually and then use them.