method show : Wp.Wpo.t -> unitmethod on_click : (Wp.Wpo.t -> Wp.VCS.prover option -> unit) -> unitmethod on_right_click : (Wp.Wpo.t -> Wp.VCS.prover option -> unit) -> unitmethod on_double_click : (Wp.Wpo.t -> Wp.VCS.prover option -> unit) -> unitmethod update : Wp.Wpo.t -> unitmethod count_selected : intmethod on_selection : (int -> unit) -> unitmethod iter_selected : (Wp.Wpo.t -> unit) -> unitmethod add : Wp.Wpo.t -> unitmethod index : Wp.Wpo.t -> intmethod get : int -> Wp.Wpo.tmethod coerce : GObj.widget