Class Forum_widgets.​add_message_widget

class add_message_widget : 
((unit, 'a, [< Eliom_service.post_service_kind ], [< Eliom_service.suff ],
  'b,
  [< string Eliom_parameter.setone ] Eliom_parameter.param_name *
  (([< Forum_types.message Eliom_parameter.setoneradio ]
    Eliom_parameter.param_name *
    [< Forum_types.forum Eliom_parameter.setoneradio ]
    Eliom_parameter.param_name) *
   ([< string Eliom_parameter.setoneradio ] Eliom_parameter.param_name *
    [< string Eliom_parameter.setoneradio ] Eliom_parameter.param_name)),
  [< Eliom_service.registrable ], 'c)
 Eliom_service.service, 'd, 'e, 'f)
Forum_types.forum_services -> object..end

val Error a_api_code: "add_message_widget" is not a valid module name : string

method Error a_api_code: "add_message_widget" is not a valid module name : 
'g.
  ?forum:Forum_types.forum ->
  ?parent:Forum_types.message ->
  ?title:bool ->
  ?rows:int ->
  ?cols:int ->
  unit -> ([> Html5_types.form ] as 'g) Eliom_content.Html5.F.elt Lwt.t