import 'dart:core' as prefixedCore;
import 'dart:core';
extension type E0 on int show operator * {}
extension type E1 on int show get isEven {}
extension type E2<T> on List<T> show set length {}
extension type E3 on int show num {}
extension type E4 on List<int> show prefixedCore.Iterable<int> {}
extension type E5 on List show prefixedCore.Iterable {}
extension type E6 on List<int> show Iterable<int> {}
abstract class A {
  A operator *(A other);
}
class B<X> implements A {
  bool get foo => throw 42;
  A operator *(A other) => throw 42;
}
class C extends B<int> {
  void set bar(int value) {}
  void baz() {}
}
extension type E on C show A, B<int>, operator *, get foo, set bar, baz {}
main() {}