/**
 * Copied and adapted from Svecosystem Runed, all credit goes to them.
 * https://github.com/svecosystem/runed/blob/main/packages/runed/src/lib/utilities/watch/watch.svelte.ts
 */
import type { Getter } from '../__internal__/types.js';
type WatchOptions<RunOnMounted extends boolean> = {
    /** Whether to run the effect on mount or not. */
    runOnMounted?: RunOnMounted;
};
export declare function watch<T, RunOnMounted extends boolean = true>(deps: Getter<T>, fn: (values: T, previousValues: RunOnMounted extends true ? T | undefined : T) => void, options?: WatchOptions<RunOnMounted>): void;
export declare function watch<T extends unknown[], RunOnMounted extends boolean = true>(deps: {
    [K in keyof T]: () => T[K];
}, fn: (values: T, previousValues: RunOnMounted extends true ? Array<T> | undefined : Array<T>) => void, options?: WatchOptions<RunOnMounted>): void;
export {};