Lazy properties in an @observable class

ObservableLazy.swift

import Cocoa
import Observation

//@Observable
class User {
    // If @Observable is applied to this class, compilation
    // of this property declaration fails with the error:
    //
    //     'lazy' cannot be used on a computed property
    //
    lazy var id : Int = {
        return Int.random(in: 1...100)
    }()
}