(* hellocaml.mli *)
(* Read hellocaml.ml first! *)
(******************************************************************************)

open OUnit

(* Expose the project tests so that hellocaml_test can run them. *)
val all_tests : test

type sales_rolodex = {
  rx_name : string;
  rx_address : string;
  rx_zip : int option;
  mutable rx_widgets_sold : int
}

val defines_foo_find : (string, 'a) Hashtbl.t -> bool

module Int32ST : sig
  type t
  val empty : t
  val mem : t -> int32 -> bool
  val insert : t -> int32 -> t
end