如何使用swift在IOS应用程序中只使用Twitter kit 3和oAuth实现Twitter登录？

import TwitterKit

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
    TWTRTwitter.sharedInstance().start(withConsumerKey: "YOUR_API_KEY", consumerSecret: "YOUR_API_SECRET")
    return true
}

import TwitterKit

@IBAction func loginWithTwitter(_ sender: UIButton) {
    TWTRTwitter.sharedInstance().logIn { (session, error) in
        if let session = session {
            // 登录成功，获取用户信息
            let client = TWTRAPIClient.withCurrentUser()
            client.requestEmail { email, error in
                if let email = email {
                    print("用户邮箱：\(email)")
                }
            }
        } else {
            // 登录失败，处理错误
            if let error = error {
                print("登录失败：\(error.localizedDescription)")
            }
        }
    }
}