Module Map.Key

type t = t
include Sexplib0.Sexpable.S with type t := t
include Sexplib0.Sexpable.Of_sexp with type t := t
val t_of_sexp : Sexplib0.Sexp.t -> t
include Sexplib0.Sexpable.Sexp_of with type t := t
val sexp_of_t : t -> Sexplib0.Sexp.t
include Core.Comparator.S with type t := t with type comparator_witness = comparator_witness
type comparator_witness = comparator_witness