class virtual tool_item_notify :[> `toolitem ] Gobject.obj ->
object
..end
val obj : ([> `toolitem ] as 'a) Gobject.obj
method private notify : 'b. ('a, 'b) Gobject.property -> callback:('b -> unit) -> GtkSignal.id
method is_important : callback:(bool -> unit) -> GtkSignal.id
method visible_horizontal : callback:(bool -> unit) -> GtkSignal.id
method visible_vertical : callback:(bool -> unit) -> GtkSignal.id