Ppx_sexp_conv_lib
module Conv = Sexplib0.Sexp_conv
module Conv_error = Sexplib0.Sexp_conv_error
module Or_null = Basement.Or_null_shim
module Sexp_grammar = Sexplib0.Sexp_grammar
module Sexp : sig ... end
module Sexpable = Sexplib0.Sexpable
type converter = exn -> Sexp.t
val magic_portable_exn_converter : converter -> converter @ portable @@ portable