如何有效地将json转换为缩进文本树？

import json

def convert_json_to_tree(json_data, indent=0):
    result = ""
    if isinstance(json_data, dict):
        for key, value in json_data.items():
            result += " " * indent + str(key) + "\n"
            result += convert_json_to_tree(value, indent + 2)
    elif isinstance(json_data, list):
        for item in json_data:
            result += convert_json_to_tree(item, indent)
    else:
        result += " " * indent + str(json_data) + "\n"
    return result

# 示例JSON数据
json_data = '''
{
    "name": "John",
    "age": 30,
    "city": "New York",
    "pets": [
        {
            "name": "Fluffy",
            "species": "cat"
        },
        {
            "name": "Buddy",
            "species": "dog"
        }
    ]
}
'''

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

# 转换为缩进文本树
tree_text = convert_json_to_tree(parsed_json)

# 输出结果
print(tree_text)

name
  John
age
  30
city
  New York
pets
  name
    Fluffy
  species
    cat
  name
    Buddy
  species
    dog