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(* IDL field hashes *)
let idl_hash : string -> Lib.Uint32.t = fun s ->
  let open Lib.Uint32 in
  List.fold_left
    (fun s c -> add (mul s (of_int 223)) (of_int (Char.code c)))
    zero
    (* TODO: also unescape the string, once #465 is approved *)
    (Lib.String.explode s)