title: How to import multiple Dart files in the same folder
body: <p>As the question is self-explaining, assume in the folder I have multiple Dart file. Instead of importing file by file (for example <code>import 'screens/screen_1.dart'; import 'screens/screen_2.dart';...</code>), I want to batch import (such as <code>import 'screens/*.dart'</code>) but it doesn't work.</p>
  
  <p>Do you know Dart allows us to do such batch import?</p>