import type { Ref } from '@stacksjs/stx';
/**
 * Watch a source with a custom event filter.
 * The filter receives the invoke function and decides when to call it.
 */
export declare function watchWithFilter<T>(source: Ref<T>, callback: (value: T) => void, eventFilter: EventFilter): () => void;
export type EventFilter = (invoke: () => void) => void;