Shelly4PM script turn off after 6 minutes

Hello there,

I am trying to write a method that turns off a switch after 6 minutes. But I am failing.
Can you help me out what am I missing? also my aproach is correct? My sintax is following a the common practice? Most of it is from code snippet so I hope so:)

I know shelly has a built in timer for that, but I would love to know a little bit better these scripts.

Thanks!

Shelly.addStatusHandler(function(e) {
  if (e.component === "input:3") {
    if (e.delta.state === true) {
      print("uv on, waiting for failsafe");
      Timer.set(6*60*1000, false, function (ud) {
        Shelly.call("Switch.set", {'id': 3, 'on': false});
      }, null);
    }
    else if (e.delta.state === false) {
      print("Input is off");
    }
  }
});