sig
type pos =
[ `bottom_left | `bottom_right | `invalid | `top_left | `top_right ]
val add : Evas.obj -> Evas.obj
val addx : Elm_object.t_addx
val pos_set : Evas.obj -> Elm_bubble.pos -> unit
val pos_get : Evas.obj -> Elm_bubble.pos
end