`string ->
object
method allocation : LTerm_geom.rect
method can_focus : bool
method children : t list
method cursor_position : LTerm_geom.coord option
method draw : LTerm_draw.context -> t -> unit
method label : string
method on_click : ?switch:LTerm_widget.switch -> (unit -> unit) -> unit
method on_event : ?switch:switch -> (LTerm_event.t -> bool) -> unit
method parent : t option
method queue_draw : unit
method resource_class : string
method resources : LTerm_resources.t
method send_event : LTerm_event.t -> unit
method set_allocation : LTerm_geom.rect -> unit
method set_label : string -> unit
method set_parent : t option -> unit
method set_queue_draw : (unit -> unit) -> unit
method set_resource_class : string -> unit
method set_resources : LTerm_resources.t -> unit
method size_request : LTerm_geom.size
method update_resources : unit
end`