default:'a ->
render:('a -> string) ->
?items:'a list ->
unit ->
object
method coerce : GObj.widget
method connect : ('a -> unit) -> unit
method fire : 'a -> unit
method get : 'a
method get_items : 'a list
method on_check : 'a -> (bool -> unit) -> unit
method on_event : (unit -> unit) -> unit
method on_value : 'a -> (unit -> unit) -> unit
method send : ('a -> unit) -> unit -> unit
method set : 'a -> unit
method set_enabled : bool -> unit
method set_items : 'a list -> unit
end