S4 (typerep.Typerep_lib.Typerepable.S4)

type ('a, 'b, 'c, 'd) t

val typerep_of_t : 'a Std_internal.Typerep.t -> 'b Std_internal.Typerep.t -> 'c Std_internal.Typerep.t -> 'd Std_internal.Typerep.t -> ('a, 'b, 'c, 'd) t Std_internal.Typerep.t

val typename_of_t : 'a Typename.t -> 'b Typename.t -> 'c Typename.t -> 'd Typename.t -> ('a, 'b, 'c, 'd) t Typename.t