Module Std_kernel.Typename_of_sexp_option
val named : 'a Typerep_lib.Std_internal.Typerep.t -> 'a sexp_option Typerep_lib.Std_internal.Typerep.Named.t
val typename_of_t : 'a Typerep_lib.Typename.t -> 'a sexp_option Typerep_lib.Typename.t