How To Use Sized Overflow Box Widget Using Flutter

import 'package:flutter/material.dart';

void main() => runApp(new MyApp());

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      home: MyHomePage(),
    );
  }
}
class MyHomePage extends StatefulWidget {
  @override
  State<StatefulWidget> createState() => MyHomePageState();
}

class MyHomePageState extends State<MyHomePage> {
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        backgroundColor: Colors.green,
          title: Text("SizedOverflowBox Widget")),
      body: Center(
        child: SizedOverflowBox(
          size: Size(50.0, 50.0),
          child: Container(
            height: 50.0,
            width: 50.0,
            color: Colors.green,
          ),
        ),
      ),
    );
  }
}