([> `expander ] as 'a) Gobject.obj ->
object
val obj : 'a Gobject.obj
method expanded : callback:(bool -> unit) -> GtkSignal.id
method label : callback:(string -> unit) -> GtkSignal.id
method label_widget : callback:(GObj.widget -> unit) -> GtkSignal.id
method private notify :
'b. ('a, 'b) Gobject.property -> callback:('b -> unit) -> GtkSignal.id
method spacing : callback:(int -> unit) -> GtkSignal.id
method use_underline : callback:(bool -> unit) -> GtkSignal.id
end