DialoguFlow网络请求在Swift中不起作用

import Alamofire
import SwiftyJSON

func sendRequestToDialogFlow(message: String) {
    let url = "https://api.dialogflow.com/v1/query?v=20150910"
    let parameters: Parameters = [
        "query": message,
        "lang": "en",
        "sessionId": "your_session_id",
        "timezone": "your_timezone",
        "accessToken": "your_access_token"
    ]
    
    Alamofire.request(url, method: .post, parameters: parameters, encoding: JSONEncoding.default, headers: nil).responseJSON { response in
        switch response.result {
        case .success(let value):
            let json = JSON(value)
            // 在这里处理DialogFlow的响应
            break
        case .failure(let error):
            print(error)
            // 处理错误情况
            break
        }
    }
}

sendRequestToDialogFlow(message: "Hello, how are you?")