Parameter Make.H

type t
include Core.Hashtbl.Key_plain with type t := t
val compare : t -> t -> int
val sexp_of_t : t -> Sexplib0.Sexp.t
val hash : t -> int

Two ts that compare equal must have equal hashes for the hashtable to behave properly.

include Core.Invariant.S with type t := t
val invariant : t -> unit