sig
type 'a t = 'a Eliom_content_core.Html5.Custom_data.t
val create :
name:string ->
?default:'a ->
to_string:('a -> string) -> of_string:(string -> 'a) -> unit -> 'a t
val create_json : name:string -> ?default:'a -> 'a Deriving_Json.t -> 'a t
val attrib : 'a t -> 'a -> [> `User_data ] Eliom_content_core.Html5.attrib
val get_dom : Dom_html.element Js.t -> 'a t -> 'a
val set_dom : Dom_html.element Js.t -> 'a t -> 'a -> unit
end