class['a]gobject_signals :'a Gtk.obj ->object..end
val obj : 'a Gtk.objval after : boolmethod after : < after : 'b; .. > as 'bmethod private connect : 'c. ('a, 'c) GtkSignal.t -> callback:'c -> GtkSignal.idmethod private notify : 'b0. ('a, 'b0) Gobject.property -> callback:('b0 -> unit) -> GtkSignal.id