Extension (Extension)

module Context : sig .. end

module V2 : sig .. end

module Expert : sig .. end

type ('context, 'payload) t = ('context, 'payload) Expert.t

val declare : string -> 'context Context.t -> (Parsetree.payload, 'a, 'b) Ast_pattern.t -> 'a -> ('context, 'b) Expert.t

val convert : (_, 'a) Expert.t list -> Parsetree.extension -> 'a option

val check_unused : Ast_traverse.iter

Module Extension