Unable to deallocate send right solution

unableToDeallocateSend.swift

fileprivate func createSettingsAlert(_ title: String, message: String) {
        let alert = UIAlertController(title: title, message: message, preferredStyle: .alert)
        alert.addAction(UIAlertAction(title: "Settings", style: UIAlertActionStyle.default, handler: { (UIAlertAction) in
            // Use the DispatchQueue.main.async {} block to handle any would be background thread methods.
            DispatchQueue.main.async {
                if let appSettings = URL(string: UIApplicationOpenSettingsURLString) {
                    UIApplication.shared.open(appSettings, options: [:], completionHandler: nil)
                }
            }
            
        }))
        self.present(alert, animated: true, completion: nil)
    }