Neo4j Java Driver connect to db as application user instead of service account

Copied from initial slack discussion to keep track of the outcome:

Currently I have a database with multiple sub graphs (disconnected from each other). This seems like a perfect fit to create a database for each sub graph.
I understand I can supply the databasename in the driver.session() call to query the right database/subgraph.
What I am wondering about is how to use the RBAC features in addition to this. If I created multiple roles with different privileges and connect users to those roles, then I need to also login to the database with those users instead of the generic neo4j user from our API.
Does the neo4j java driver have options for this?

try (Session session = driver.session(SessionConfig.builder().withDatabase("someDatabase").build())) {
            session.run("MATCH (m:Movie) RETURN m ORDER BY m.name ASC").stream()
                .map(r -> r.get("m").asNode())
                .map(n -> n.get("title").asString())
                .forEach(LOGGER::info);
        }

to choose the database is possible. But I think we also need something like this:

try (Session session = driver.session(SessionConfig.builder().withDatabase("someDatabase").assumeRole("reader").build())) {
            session.run("MATCH (m:Movie) RETURN m ORDER BY m.name ASC").stream()
                .map(r -> r.get("m").asNode())
                .map(n -> n.get("title").asString())
                .forEach(LOGGER::info);
        }

Max Demarzi responded: You brought up a good point btw, now were talking about ways to pass the user in the session.

Is how oracle enables using a proxy user. This seems like a possible feature for the neo4j driver and db