INResumeWorkoutIntentHandling

Use the methods of the INResumeWorkoutIntentHandling protocol to resolve, confirm, and handle requests to resume a paused workout that’s using your app. Adopt this protocol in an object of your Intents extension that’s capable of validating the workout name.

You don’t actually resume the workout from your Intents extension. When your handle(intent:completion:) returns, Siri launches your app and passes it an NSUserActivity object that contains the intent object and your response. Your app uses the information in those objects to resume the workout.