   import UIKit
   typealias Storyboard = UIStoryboard
   typealias ViewController = UIViewController
+  typealias StoryboardName = String
   
   extension UIStoryboard {
     @nonobjc

  
  let storyboard: Storyboard = {
    let bundle = Bundle(for: DipUITests.self)
    return Storyboard(name: NSStoryboard.Name(storyboardName), bundle: bundle)
  }()
  
  func testThatViewControllerHasDipTagProperty() {

  import AppKit
  typealias Storyboard = NSStoryboard
  typealias ViewController = NSViewController
  typealias StoryboardName = NSStoryboard.Name
  
  extension NSStoryboard {
    @discardableResult func instantiateViewControllerWithIdentifier(_ identifier: String) -> NSViewController {
