^^&&^^

Edit File: RESTWPInterface.php

<?php

namespace WP_Rocket\Engine\CriticalPath;

use WP_REST_Request;
use WP_REST_Response;

interface RESTWPInterface {
	/**
	 * Registers the generate route in the WP REST API
	 *
	 * @since 3.6
	 *
	 * @return void
	 */
	public function register_generate_route();

/**
	 * Register Delete CPCSS route in the WP REST API.
	 *
	 * @since  3.6
	 *
	 * @return void
	 */
	public function register_delete_route();

/**
	 * Checks user's permissions. This is a callback registered to REST route's "permission_callback" parameter.
	 *
	 * @since 3.6
	 *
	 * @return bool true if the user has permission; else false.
	 */
	public function check_permissions();

/**
	 * Generates the CPCSS for the requested post ID.
	 *
	 * @since 3.6
	 *
	 * @param WP_REST_Request $request WP REST request response.
	 *
	 * @return WP_REST_Response
	 */
	public function generate( WP_REST_Request $request );

/**
	 * Delete Post ID CPCSS file.
	 *
	 * @since 3.6
	 *
	 * @param WP_REST_Request $request the WP Rest Request object.
	 *
	 * @return WP_REST_Response
	 */
	public function delete( WP_REST_Request $request );

}