traitCollectionDidChange deprecated in Xcode 15

I am using UIViewController, and I need to know when devices appearance changes. Previously this worked with a delegate function.

override func traitCollectionDidChange(_ previousTraitCollection: UITraitCollection?) {
    super.traitCollectionDidChange(previousTraitCollection) // ⚠️
    // Update UI
}

Xcode 15 gives us the deprecation warning.

'traitCollectionDidChange' was deprecated in iOS 17.0: Use the trait change registration APIs declared in the UITraitChangeObservable protocol

The new function with the completion block registerForTraitChanges, needs the [UITrait] parameter.

Both of my attempts are failing to compile.

let traits = [UIUserInterfaceStyle.light, UIUserInterfaceStyle.dark]
view.registerForTraitChanges(traits) { _, _ in
    // Update UI
}

Cannot convert value of type '[UIUserInterfaceStyle]' to expected argument type '[UITrait]' (aka 'Array<any UITraitDefinition.Type>')

view.registerForTraitChanges(self.traitCollection.userInterfaceStyle) { _, _ in
    // Update UI
}

Cannot convert the value of type 'UIUserInterfaceStyle' to expected argument type '[UITrait]' (aka 'Array<any UITraitDefinition.Type>')

Please share working code example.
Also, does the completion block guarantee to run on the main thread?