Map.Key
type t = IStdlib.IStd.Int.t
val t_of_sexp : Sexplib0__.Sexp.t -> t
val sexp_of_t : t -> Sexplib0__.Sexp.t
type comparator_witness = Core__Map.Make(IStdlib.IStd.Int).Key.comparator_witness
val comparator : (t, comparator_witness) Core__Comparator.comparator