Hi,
I used redis pub/sub in older AH projects to communicate between instances happily before.
I can remember in version 19 or 20 I could create a message handler:

api.redis.subscriptionHandlers["some_type_name"] = event => { ... }

And publish a message with:

api.redis.publish({ messageType: "some_type_name", ... });

However working on a new project right now I don't see how to define a receiving handler function for a publish.
The docs for redis don't contain subscriptionHandlers anymore: https://docs.actionherojs.com/modules/redis.html

What's the correct / preferred way to pub/sub via redis between instances right now?