// Copyright (c) 2016, 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. | |
import 'dart:async'; | |
/// A generic typedef for a function that takes one type and returns another. | |
typedef F UnaryFunction<E, F>(E argument); | |
/// A typedef for a function that takes no arguments and returns a Future or a | |
/// value. | |
typedef FutureOr<T> FutureOrCallback<T>(); |