async def METHOD_NAME(self, hash, args, argsh):
    await super().METHOD_NAME(hash, args, argsh)
    attr_config = {
        "interval": {
            "default": 1800,
            "format": "int",
            "help": "Change interval, default is 1800s.",
        }
    }
    await self.set_attr_config(attr_config)
    if len(args) != 4:
        return "Usage: define my_volvo_update fhempy volvo_software_update URL"
    self.update_url = args[3]
    self.create_async_task(self.update_loop())