Swift -如何从模型中的API调用返回json对象以在视图控制器中使用

struct User {
    let name: String
    let age: Int
    // 其他属性...
}

import Alamofire

func getUser(completion: @escaping (User?) -> Void) {
    let url = "https://api.example.com/user"
    
    AF.request(url).responseJSON { response in
        switch response.result {
        case .success(let json):
            if let dict = json as? [String: Any],
               let name = dict["name"] as? String,
               let age = dict["age"] as? Int {
                let user = User(name: name, age: age)
                completion(user)
            } else {
                completion(nil)
            }
        case .failure(_):
            completion(nil)
        }
    }
}

getUser { user in
    if let user = user {
        nameLabel.text = user.name
        ageLabel.text = "\(user.age)"
    } else {
        // 处理获取用户信息失败的情况
    }
}