<?php declare(strict_types=1);
 /**
  * Part of Windwalker project.
  *
  * @copyright  Copyright (C) 2019 LYRASOFT.
  * @license    LGPL-2.0-or-later
  */
 
 namespace Windwalker\Renderer;
 
 /**
  * The AbstractEngineRenderer class.
  *
  * @since  2.0
  */
 abstract class AbstractEngineRenderer extends AbstractRenderer
 {
     /**
      * Property engine.
      *
      * @var  object
      */
     protected $engine = null;
 
     /**
      * Method to get property Engine
      *
      * @param   boolean $new
      *
      * @return  object
      */
     abstract public function getEngine($new = false);
 
     /**
      * Method to set property engine
      *
      * @param   object $engine
      *
      * @return  static  Return self to support chaining.
      */
     abstract public function setEngine($engine);
 }