Versioned_type (ppx_version.Ppx_version.Versioned

val deriver : string

val printing_ref : bool Core_kernel.ref

val set_printing : unit -> unit

val unset_printing : unit -> unit

val module_path_list : string -> string list

module Printing : sig ... end

module Deriving : sig ... end

val choose_deriver : printing:'a -> deriving:'b -> 'c

val str_type_decl : 
  ( Ppxlib.structure, Ppxlib.rec_flag * Ppxlib.type_declaration list )
    Ppxlib.Deriving.Generator.t

val sig_type_decl : 
  ( Ppxlib.signature, Ppxlib.rec_flag * Ppxlib.type_declaration list )
    Ppxlib.Deriving.Generator.t