code: function controllerMethod (controller, method) {
    if (controller && controller[method]) {
      return controller[method]
    }
  
    // Handle hello-based Controller classes
    if (isClass(controller) && controller.action) {
      return controller.action(method)
    }
  
    return notImplemented
  }
docs: Returns a wrapper to be used in the router for calling a given controller method.
  
  @param {Object|Controller} controller - The controller
  @param {String} method - The method on the controller to call
  @returns {Function} The controller method to call