homebridge-miot: Can't understand how to setup properly actionButtons ijai.vacuum.v19

I’m opening an issue not for a bug of the repository but for a hard time understanding how to handle correctly actionButtons.

I’m trying to create a button for cleaning a specific room. I’ve got my miot spec from https://merdok.github.io/miotspec/?model=ijai.vacuum.v19.

"actionButtons": [
    {
        "action": "sweep:set-room-clean",
        "name": "Pulisci lettiera"
    }
]

Seems like params are required since I have to say which room to clean but how can I understand how to pass those params correctly? I can’t find anything online and also, using debug mode on homebridge didn’t help me.