Flutter serve

flutter run

Flutter serve

import 'package:flutter/material.dart';
 
void main() => runApp(MyApp());
class MyApp extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     return new MaterialApp(
       home: new Material(
         child: new Center(
           child: new Text("Hello world!"),
         ),
       ),
     );
   }
 }

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