如何在一个单独的文件中组织所有不同的参数

{
  "database": {
    "host": "localhost",
    "port": 3306,
    "username": "admin",
    "password": "password"
  },
  "server": {
    "port": 8080,
    "timeout": 300
  },
  "api": {
    "key": "your_api_key",
    "endpoint": "https://api.example.com"
  }
}

import json

with open('config.json') as config_file:
    config = json.load(config_file)

# 访问数据库参数
db_host = config['database']['host']
db_port = config['database']['port']
db_username = config['database']['username']
db_password = config['database']['password']

# 访问服务器参数
server_port = config['server']['port']
server_timeout = config['server']['timeout']

# 访问API参数
api_key = config['api']['key']
api_endpoint = config['api']['endpoint']