val sexp_of_elem : elem -> Ppx_sexp_conv_lib.Sexp.tval elem_of_sexp : Ppx_sexp_conv_lib.Sexp.t -> elemval __elem_of_sexp__ : Ppx_sexp_conv_lib.Sexp.t -> eleminclude Ppx_sexp_conv_lib.Sexpable.S with type t := t
val t_of_sexp : Sexplib0__.Sexp.t -> tval sexp_of_t : t -> Sexplib0__.Sexp.tval equal : t -> t -> bool