如何使用数据模型从firebase实时数据库中检索数据？

import FirebaseDatabase

// 定义数据模型
struct User {
    let name: String
    let age: Int
}

// 引用Firebase实时数据库
let ref = Database.database().reference()

// 构建查询
let query = ref.child("users").queryOrdered(byChild: "age")

// 添加筛选条件
let filteredQuery = query.queryEqual(toValue: 25)

// 执行查询
filteredQuery.observe(.value) { snapshot in
    guard let userDict = snapshot.value as? [String: Any] else {
        print("No data available")
        return
    }
    
    // 处理返回的数据
    for (key, value) in userDict {
        if let userInfo = value as? [String: Any],
           let name = userInfo["name"] as? String,
           let age = userInfo["age"] as? Int {
            let user = User(name: name, age: age)
            print("User ID: \(key), Name: \(user.name), Age: \(user.age)")
        }
    }
}