In the How do I call a method on my backend class besides call? section, it makes no mention of the fact that this handle.options functionality only runs the class method on a single replica (although it would make my life a lot easier if it did propagate to all replicas).
Relevant discussion with @simon-mo : https://ray-distributed.slack.com/archives/CNCKBBRJL/p1601595205036400?thread_ts=1601586188.032700&cid=CNCKBBRJL