Apple TV native plugin folder?

I'm trying to write a native plugin for Apple TV, but whenever I build, Unity doesn't include my code in the generated Xcode project.

The iOS documentation lists Assets/Plugins/iOS as the directory to use (http://docs.unity3d.com/540/Documentation/Manual/PluginsForIOS.html)

The Apple TV documentation doesn't list anything of the sort: http://docs.unity3d.com/540/Documentation/Manual/tvOS.html

I've tried copying my iOS directory as tvOS, but it still doesn't pick up...

Apple TV native plugin folder?