ChainRequestPolicyInterface.php

<?php

namespace Drupal\Core\PageCache;


/**
 * Defines the interface for compound request policies.
 */
interface ChainRequestPolicyInterface extends RequestPolicyInterface {
    
    /**
     * Add a policy to the list of policy rules.
     *
     * @param \Drupal\Core\PageCache\RequestPolicyInterface $policy
     *   The request policy rule to add.
     *
     * @return $this
     */
    public function addPolicy(RequestPolicyInterface $policy);

}