efl/src/lib/elementary/efl_ui_flip_part.eo

class Efl.Ui.Flip.Part (Efl.Ui.Widget.Part, Efl.Content)
{
   [[Efl UI flip internal class]]
   data: null;
   implements {
      Efl.Content.content { get; set; }
      Efl.Content.content_unset;
   }
}