如何在子pyrebase中追加新条目

import pyrebase

# Firebase配置信息
config = {
  "apiKey": "YOUR_API_KEY",
  "authDomain": "YOUR_AUTH_DOMAIN",
  "databaseURL": "YOUR_DATABASE_URL",
  "projectId": "YOUR_PROJECT_ID",
  "storageBucket": "YOUR_STORAGE_BUCKET",
  "messagingSenderId": "YOUR_MESSAGING_SENDER_ID",
  "appId": "YOUR_APP_ID"
}

# 初始化Firebase应用
firebase = pyrebase.initialize_app(config)

# 获取数据库引用
db = firebase.database()

# 创建子节点引用
child_node = db.child("your_child_node")

# 追加新条目
new_item = {
  "key1": "value1",
  "key2": "value2"
}

child_node.push(new_item)