如何在Dart中处理含嵌套Map的List并映射至Model类

我正尝试从JSONPlaceholder API获取数据，想在Dart中将其映射为Model类。试过YouTube教程和自动生成的Model，都没解决问题。获取到的数据是包含嵌套Map的List，示例如下：

var myMap = [
  {
    "name": "Ravindu",
    "age": 20,
    "scl": "smc",
    "address": {
      "city": "Kegalle",
      "country": "sri lanka"
    }
  },
  {
    "name": "Ravindu1",
    "age": 20,
    "scl": "smc1",
    "address": {
      "city": "Kegalle1",
      "country": "sri lanka1"
    }
  }
];

我想把这类数据映射到Model类，同时想知道怎么访问嵌套Map里的元素。试过myMap[0]["address"]，但它只返回索引0处的整个地址Map。

我实际用的API地址是：final String url = "https://jsonplaceholder.typicode.com/users"

在DartPad测试时出现错误：

Uncaught Error: TypeError: Instance of 'JsLinkedHashMap<String, String>': type 'JsLinkedHashMap<String, String>' is not a subtype of type 'List'

测试代码如下：

void main() {
  var myMap = [
    {
      "name": "Ravindu",
      "age": 20,
      "scl": "smc",
      "address": {
        "city": "Kegalle",
        "country": "sri lanka"
      }
    },
    {
      "name": "Ravindu1",
      "age": 20,
      "scl": "smc1",
      "address": {
        "city": "Kegalle1",
        "country": "sri lanka1"
      }
    }
  ];
  
  print(myMap[0]);
  
  var addressList = myMap[0]["address"]["city"];
  print(addressList);
  
  (addressList as List).forEach((i){
    print(i["country"]);
  });
}

请问如何将此类JSON数据转换为Dart Model类？

内容的提问来源于stack exchange，提问作者xmr6204