     }
   }
 
-  @IBAction func copy(_ sender: AnyObject?) {
+  @IBAction func copy(_ sender: Any?) {
     switch self.mode {
     case .visual, .normal:
       self.api

    }
  }

  @IBAction func paste(_ sender: AnyObject?) {
    guard let content = NSPasteboard.general.string(forType: .string) else {
      return
    }

    }
  }

  @IBAction func cut(_ sender: Any?) {
    switch self.mode {
    case .visual, .normal:
      self.api
