interface ChainResponsePolicyInterface

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

}