New Async Client event_loop.next()

[benidi]

I upgraded to the new async client. Based on the description I use event_loop.next() to get sessionPollResults. But i get the compilation error: the method next exists for struct SessionEventLoop. I added the futures-util v0.3.30 package. Any idea how to solve this?
The client is working with event_loop.spawn() but I need the status updates from the session.

Thank you!