// @dart = 2.9
import 'opt_in_lib1.dart';
import 'opt_in_lib2.dart';
import 'opt_out_lib.dart';

class Class1 extends Super with Mixin1 {}

class Class2 extends Base with Mixin2 {}

class Super {
  B get getter => new B();
  void set setter(A a) {}
}

main() {}