import type { PrecacheRouteOptions } from "../types.js";
/**
 * Generator function that yields possible variations on the original URL to
 * check, one at a time.
 *
 * @param url
 * @param options
 *
 * @private
 */
export declare function generateURLVariations(url: string, { directoryIndex, ignoreURLParametersMatching, cleanURLs, urlManipulation, }?: PrecacheRouteOptions): Generator<string, void, unknown>;
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