How can I use universal links when I call openURL inside my own app?

// Respond to URI scheme links
func application(_ app: UIApplication, open url: URL, options: [UIApplicationOpenURLOptionsKey : Any] = [:]) -> Bool {
    // pass the url to the handle deep link call
    Branch.getInstance().application(app, open: url, options: options)

    // do other deep link routing for the Facebook SDK, Pinterest SDK, etc
    return true
}

// Respond to Universal Links
func application(_ application: UIApplication, continue userActivity: NSUserActivity, restorationHandler: @escaping ([Any]?) -> Void) -> Bool {
    // pass the url to the handle deep link call
    Branch.getInstance().continue(userActivity)

    return true
}

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
  let branch: Branch = Branch.getInstance()
  branch?.initSession(launchOptions: launchOptions, deepLinkHandler: { params, error in
    if error == nil {
        // params are the deep linked params associated with the link that the user clicked -> was re-directed to this app
        print("params: %@", params.description)
    }
   })
   return true
}