efl/src/lib/elementary/elm_layout_internal_part.eo

class Elm.Layout.Internal.Part (Efl.Object, Efl.Container, Efl.Text)
{
   [[Elementary layout internal part class]]
   data: Elm_Part_Data;
   implements {
      Efl.Object.destructor;
      Efl.Container.content { get; set; }
      Efl.Container.content_unset;
      Efl.Text.text { set; get; }
   }
}