# Module Extended_exn.Exn_string

    module Exn_string: sig .. end

The point of this module is to be able to include an exn in a type that has to be sexpable or binable. The `Exn_string.t` type is more descriptive than just converting to a string and is guaranteed to have come from an exn (unless someone abuses the `t_of_sexp` function or something).

    type t = private string

    include Sexpable

    include Stringable

    include Binable

    val of_exn : exn -> t