examples/hello_world/lib/main.dart

// Copyright 2014 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

import 'package:flutter/widgets.dart';

void main() => runApp(
  const Center(child: Text('Hello, world!', key: Key('title'), textDirection: TextDirection.ltr)),
);