import { urlManipulation } from '../_types.js';
import '../_version.js';
export interface FetchListenerOptions {
    directoryIndex?: string;
    ignoreURLParametersMatching?: RegExp[];
    cleanURLs?: boolean;
    urlManipulation?: urlManipulation;
}
/**
 * Adds a `fetch` listener to the service worker that will
 * respond to
 * [network requests]{@link https://developer.mozilla.org/en-US/docs/Web/API/Service_Worker_API/Using_Service_Workers#Custom_responses_to_requests}
 * with precached assets.
 *
 * Requests for assets that aren't precached, the `FetchEvent` will not be
 * responded to, allowing the event to fall through to other `fetch` event
 * listeners.
 *
 * NOTE: when called more than once this method will replace the previously set
 * configuration options. Calling it more than once is not recommended outside
 * of tests.
 *
 * @private
 * @param {Object} [options]
 * @param {string} [options.directoryIndex=index.html] The `directoryIndex` will
 * check cache entries for a URLs ending with '/' to see if there is a hit when
 * appending the `directoryIndex` value.
 * @param {Array<RegExp>} [options.ignoreURLParametersMatching=[/^utm_/]] An
 * array of regex's to remove search params when looking for a cache match.
 * @param {boolean} [options.cleanURLs=true] The `cleanURLs` option will
 * check the cache for the URL with a `.html` added to the end of the end.
 * @param {workbox.precaching~urlManipulation} [options.urlManipulation]
 * This is a function that should take a URL and return an array of
 * alternative URLs that should be checked for precache matches.
 */
export declare const addFetchListener: ({ ignoreURLParametersMatching, directoryIndex, cleanURLs, urlManipulation, }?: FetchListenerOptions) => void;