extern issue

Router.hx

import express.Request;
import express.Response;
import express.Next;
import express.Middleware;
import express.Express;
import abe.Router;

class Main {
  public static function main() {
    var router = new abe.Router(null);

    var m : express.Middleware = function(req : Request, res : Response, next : Next) {};

    router.use(m);

    var n = new Some();
    n.use(m);
  }
}

extern class Some {
  function new() : Void;
  @:overload(function(callback : Middleware) : Router {})
  @:overload(function(callback : ErrorMiddleware) : Router {})
  @:overload(function(app : Express) : Express {})
  @:overload(function(path : String, app : Express) : Router {})
  @:overload(function(router : Router) : Express {})
  @:overload(function(path : String, router : Router) : Router {})
  function use(path : String, callback : Middleware, callbacks : haxe.Rest<Middleware>) : Router;
}