如何在dart中对JSON来回编码和解码自定义对象列表？

dependencies:
  json: ^3.0.0

import 'dart:convert';
import 'package:json/json.dart';

class Person {
  String name;
  int age;

  Person(this.name, this.age);

  // 将对象转换为Map
  Map<String, dynamic> toJson() => {
        'name': name,
        'age': age,
      };

  // 从Map中解析对象
  factory Person.fromJson(Map<String, dynamic> json) =>
      Person(json['name'], json['age']);
}

List<Person> persons = [
  Person('Alice', 25),
  Person('Bob', 30),
];

String jsonStr = jsonEncode(persons);
print(jsonStr);

[{"name":"Alice","age":25},{"name":"Bob","age":30}]

List<Person> decodedPersons = jsonDecode(jsonStr)
    .map<Person>((json) => Person.fromJson(json))
    .toList();

decodedPersons.forEach((person) {
  print('Name: ${person.name}, Age: ${person.age}');
});

Name: Alice, Age: 25
Name: Bob, Age: 30