include Typerep_lib.Typerepable.S2 with type (a, b) t := (a, b) t
val typerep_of_t : 'a Typerep_lib.Std_internal.Typerep.t ‑> 'b Typerep_lib.Std_internal.Typerep.t ‑> ('a, 'b) t Typerep_lib.Std_internal.Typerep.t
val typename_of_t : 'a Typerep_lib.Typename.t ‑> 'b Typerep_lib.Typename.t ‑> ('a, 'b) t Typerep_lib.Typename.t