public function create($orderId, $fulfillmentId, FulfillmentEvent &$fulfillmentEvent)
    {
        $data = $fulfillmentEvent->exportData();
        $endpoint = '/admin/orders/'.$orderId.'/fulfillments/'.$fulfillmentId.'/events.json';
        $response = $this->request(
            $endpoint, 'POST', array(
            'fulfillment_event' => $data
            )
        );
        $fulfillmentEvent->setData($response['fulfillment_event']);
    }