Functor Deriving_Show.Show_unprintable

module Show_unprintable: 
functor (S : sig
type a 
end-> Show  with type a = S.a
Parameters:
S : sig type a end

type a 
val format : Format.formatter -> a -> unit
val format_list : Format.formatter -> a list -> unit
val show : a -> string
val show_list : a list -> string