// Copyright (c) 2019, the Dart project authors. Please see the AUTHORS file | |
// for details. All rights reserved. Use of this source code is governed by a | |
// BSD-style license that can be found in the LICENSE file. | |
// @dart = 2.9 | |
import 'dart:async'; | |
import 'package:expect/expect.dart'; | |
main() { | |
Expect.subtype<void Function(), FutureOr<void Function()>>(); | |
} |