Unable to create session cookie for tenant users

Hey everyone

I am setting up a python application and I would like to use firebase for authentication.
For normal users the login flows works fine, my problem comes when I start using tenants.

---

When a user authenticates to my app, it gets a token and then, after verification, the token is exchanged for a long-lived session cookie. As mentioned before, this works great for normal users.

I am using the exact code described in the docs here: https://firebase.google.com/docs/auth/admin/manage-cookies#create_session_cookie

When I authenticate users that are part of a tenant though, I can't find a way to convert their token into a session cookie.

I tried using `session_cookie = auth.create_session_cookie(id_token, expires_in=expires_in, app=tenant_app)` but I get always the same error message:

```
Error while calling Auth service (UNSUPPORTED_TENANT_OPERATION).
```

Am I missing something ? I am using the latest version of firebase-admin