abstract class B {
  final bool autofocus;
  const B({required this.autofocus});
}

class O1 extends B {
  const O1({bool autofocus = true}) : super(autofocus: autofocus);
}

class O2 extends B {
  const O2({super.autofocus = true});
}

abstract class C {
  final bool a;
  final bool b;
  const C({this.a = true, this.b = false});
}

class P1 extends C {
  final int c;
  const P1(this.c, {super.a, super.b});
}

class P2 extends C {
  const P2({super.b, super.a});
}

main() {}

expect(expected, actual) {}