SourceCompletion.Sval activate_proposal : ([> `sourcecompletion ], unit -> unit) GtkSignal.tval hide : ([> `sourcecompletion ], unit -> unit) GtkSignal.tval move_cursor : ([> `sourcecompletion ], GtkEnums.scroll_step -> int -> unit) GtkSignal.tval move_page : ([> `sourcecompletion ], GtkEnums.scroll_step -> int -> unit) GtkSignal.tval populate_context : ([> `sourcecompletion ], GtkSourceView3_types.source_completion_context Gobject.obj -> unit) GtkSignal.tval show : ([> `sourcecompletion ], unit -> unit) GtkSignal.t