code: func (e ShortcutExpander) KindFor(resource unversioned.GroupVersionResource) (unversioned.GroupVersionKind, error) {
  	resource = expandResourceShortcut(resource)
  	return e.RESTMapper.KindFor(resource)
  }
docs: // KindFor implements meta.RESTMapper. It expands the resource first, then invokes the wrapped
  // mapper.