NSSeguePerforming
A set of methods that support the mediation of a custom segue.
Declaration
protocol NSSeguePerforming : NSObjectProtocolOverview
When you subclass NSStoryboardSegue to express a custom transition or containment relationship between storyboard scenes, you might also want to provide code that prepares the destination/contained view or window controller object. Put this code in an override of the prepare(for:sender:) method.
To conditionally disallow the performance of a segue, override the shouldPerformSegue(withIdentifier:sender:) method, returning false.If you need to programmatically trigger a segue that cannot be expressed in a storyboard file, such as a transition between scenes in different storyboards, use the performSegue(withIdentifier:sender:) method in this protocol.