如何统计JSON中元素为空的数量？

import json

def count_empty_elements(json_data):
    empty_count = 0

    # 解析JSON数据
    data = json.loads(json_data)

    # 遍历JSON对象或数组
    def traverse(obj):
        nonlocal empty_count

        if isinstance(obj, dict):
            for key, value in obj.items():
                if value is None or value == "" or value == [] or value == {}:
                    empty_count += 1
                else:
                    traverse(value)
        elif isinstance(obj, list):
            for item in obj:
                traverse(item)

    traverse(data)

    return empty_count