type 'a t =
  { name : string
  ; data : 'a
  }

let make ~name data = { name; data }
let data t = t.data
let name t = t.name
let map t ~f = { t with data = f t.data }
let set_data t data = { t with data }

let to_dyn f { name; data } =
  let open Dyn in
  record [ "name", String name; "data", f data ]
;;