如何使用所说的语言对用户配置文件进行建模？如何存储语言？

# 导入必要的模块
import json

# 定义用户配置文件的数据结构
class UserConfig:
    def __init__(self, username, email, settings):
        self.username = username
        self.email = email
        self.settings = settings

    def to_json(self):
        return json.dumps(self.__dict__)

    @staticmethod
    def from_json(json_str):
        data = json.loads(json_str)
        return UserConfig(data['username'], data['email'], data['settings'])

# 创建一个用户配置对象
user_config = UserConfig("John Doe", "johndoe@example.com", {"theme": "dark", "language": "en"})

# 将用户配置对象存储为JSON格式的字符串
json_str = user_config.to_json()

# 将JSON格式的字符串存储到文件中
with open("user_config.json", "w") as file:
    file.write(json_str)

# 从文件中读取JSON格式的字符串并转换为用户配置对象
with open("user_config.json", "r") as file:
    json_str = file.read()
    loaded_user_config = UserConfig.from_json(json_str)

# 打印加载的用户配置对象
print(loaded_user_config.username)
print(loaded_user_config.email)
print(loaded_user_config.settings)