/// <reference types="svelte" />
import { type Readable, type Stores, type StoresValues } from 'svelte/store';
/**
 * A utility function that creates a derived store that automatically
 * unsubscribes from its dependencies.
 *
 * @template S - The type of the stores object
 * @template T - The type of the derived store
 * @param stores - The stores object to derive from
 * @param fn - The function to derive the store from
 * @returns A derived store that automatically unsubscribes from its dependencies
 */
export declare function derivedWithUnsubscribe<S extends Stores, T>(stores: S, fn: (values: StoresValues<S>, onUnsubscribe: (cb: () => void) => void) => T): Readable<T>;