class virtual source_completion_context_sigs :object
..end
method private virtual connect : 'b.
([> `sourcecompletioncontext ], 'b) GtkSignal.t ->
callback:'b -> GtkSignal.id
method private virtual notify : 'b.
([> `sourcecompletioncontext ] as 'a, 'b) Gobject.property ->
callback:('b -> unit) -> GtkSignal.id
method cancelled : callback:(unit -> unit) -> GtkSignal.id