Module type Bonsai_types.Comparator

We need keys to have t_of_sexp and sexp_of_t

type t
include Ppx_sexp_conv_lib.Sexpable.S with type t := t
type t
val t_of_sexp : Sexplib0.Sexp.t -> t
val sexp_of_t : t -> Sexplib0.Sexp.t
include Core_kernel.Comparator.S with type t := t
type t
type comparator_witness
val comparator : (tcomparator_witness) Core_kernel.Comparator.comparator