ARKit request camera permission

If the user declines (e.g. byu accident) permission for camera access during startup of an ARKit application, there is not way to request permission again. In Android there is, but I cant find anything related for iOS. Is that the case?

iOS has a method for this, but this is again one of many things that are not available in Unreal Engine.
For those who master the art of combining Swift or Objective-C with UE4-C++, this is the missing function:

The rest of us has to ask the user to inconveniently go to iOS Settings > Privacy, enable permission and come back to the app.