<?php defined('SYSPATH') or die('No direct access allowed.');

/**
 * This interface ensures that all items have the required invoice methods
 *
 * @package    Invoice
 * @category   Interface
 * @author     Deon George
 * @copyright  (c) 2009-2013 Open Source Billing
 * @license    http://dev.osbill.net/license.html
 */
interface Invoicable {
	// Render an invoice line item.
	public function invoice_item($item_type);
}
?>
