# Module Timing_wheel_intf.Interval_num.Span

    module Span: sig .. end

    type t = private Int63.t

    include Comparable.S

    val max : t ->
           t ->
           t

    val zero : t

    val one : t

    val of_int63 : Int63.t -> t

    val to_int63 : t -> Int63.t

    val of_int : int -> t

    val to_int_exn : t -> int

    val scale_int : t ->
           int -> t

    val pred : t ->
           t

    val succ : t ->
           t

    val t_of_sexp : Sexplib.Sexp.t -> t

    val sexp_of_t : t -> Sexplib.Sexp.t

    val compare : t ->
           t -> int

    val bin_t : t Bin_prot.Type_class.t

    val bin_read_t : t Bin_prot.Read.reader

    val __bin_read_t__ : (int -> t) Bin_prot.Read.reader

    val bin_reader_t : t Bin_prot.Type_class.reader

    val bin_size_t : t Bin_prot.Size.sizer

    val bin_write_t : t Bin_prot.Write.writer

    val bin_writer_t : t Bin_prot.Type_class.writer