import { PrecacheController } from "./PrecacheController.js";
/**
 * Creates a new, singleton {@linkcode PrecacheController} if one does not exist. If one does
 * already exist, that instance is returned. This instance is used by Serwist's
 * {@linkcode PrecacheController}-dependent functions and classes unless you provide a different
 * {@linkcode PrecacheController} to them.
 *
 * @returns The singleton {@linkcode PrecacheController}.
 * @deprecated
 */
export declare const getSingletonPrecacheController: () => PrecacheController;
/**
 * Changes the singleton {@linkcode PrecacheController} to a different instance. This is meant for when you do not
 * want to pass your own {@linkcode PrecacheController} to every one of Serwist's {@linkcode PrecacheController}-dependent
 * functions and classes.
 *
 * It is highly recommended that you call this before anything else, if you plan on doing so.
 *
 * @example
 * ```js
 * import { PrecacheController, setSingletonPrecacheController } from "serwist/legacy";
 *
 * const controller = new PrecacheController();
 *
 * setSingletonPrecacheController(controller);
 *
 * // Do something with your controller...
 * ```
 * @param router
 * @returns The new singleton {@linkcode PrecacheController}.
 * @deprecated
 */
export declare const setSingletonPrecacheController: (precacheController: PrecacheController) => PrecacheController;
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