val sexp_of_t : t -> Ppx_sexp_conv_lib.Sexp.t
val parse : string -> t Core_kernel.Or_error.t
Version_util.VersionVersion may be used to parse a single entry from version_list.
val sexp_of_t : t -> Ppx_sexp_conv_lib.Sexp.tval parse : string -> t Core_kernel.Or_error.t