Context_free (ppxlib.Ppxlib.Context

module Rule : sig ... end

module Generated_code_hook : sig ... end

module Expect_mismatch_handler : sig ... end

class map_top_down : ?expect_mismatch_handler:Expect_mismatch_handler.t -> ?generated_code_hook:
  Generated_code_hook.t -> ?embed_errors:bool -> Rule.t list -> object ... end