如何解决此问题:警告:遇到两个具有相同密钥的子项，`%s`

{
  "key1": "value1",
  "key2": "value2",
  "key1": "value3"  // 这是重复的键
}

{
  "key1": "value1",
  "key2": "value2"
}

import json

def remove_duplicate_keys(data):
    if isinstance(data, dict):
        new_data = {}
        for key, value in data.items():
            if key not in new_data:
                new_data[key] = remove_duplicate_keys(value)
        return new_data
    elif isinstance(data, list):
        return [remove_duplicate_keys(item) for item in data]
    else:
        return data

# 读取JSON文件
with open('config.json', 'r') as file:
    config = json.load(file)

# 移除重复键
clean_config = remove_duplicate_keys(config)

# 写回JSON文件
with open('config_clean.json', 'w') as file:
    json.dump(clean_config, file, indent=4)