如何使用python从YAML文件中通过子值获取父id？

import yaml

with open('file.yaml', 'r') as f:
    data = yaml.safe_load(f)

def find_parent_id(data, child_value):
    for item in data:
        if 'id' in item and 'children' in item:
            if child_value in item['children']:
                return item['id']
            else:
                parent_id = find_parent_id(item['children'], child_value)
                if parent_id:
                    return parent_id
    return None

child_value = '子值'
parent_id = find_parent_id(data, child_value)
print(parent_id)