phatmann

class BackgroundTask {
    private let application: UIApplication
    private var identifier = UIBackgroundTaskInvalid
    
    init(application: UIApplication) {
        self.application = application
    }
    
    class func run(application: UIApplication, handler: (BackgroundTask) -> ()) {
        // NOTE: The handler must call end() when it is done

sgr-ksmt

public protocol StoryboardInstantiatable {
    static var storyboardName: String { get }
    static var viewControllerIdentifier: String? { get }
    static var bundle: Bundle? { get }
}

public extension StoryboardInstantiatable where Self: UIViewController {
    public static var storyboardName: String {
        return String(describing: self)
    }