late final int? lateTopLevelField;

class Class<T> {
  static late final int? lateStaticField1;
  static late final int? lateStaticField2;
  static staticMethod() {}
  late final int? lateInstanceField;
  late final T? lateGenericInstanceField;
  instanceMethod(T value) {}
}

extension Extension<T> on Class<T> {
  static late final int? lateExtensionField1;
  static late final int? lateExtensionField2;
  static staticMethod() {}
}

main() {}
expect(expected, actual) {}
throws(f(), String message) {}