import type { ConfigurableWindow } from "../_configurable";
/**
 * Reactive `document.activeElement`
 *
 * @param options
 */
export declare function active_element<T extends HTMLElement>(options?: ConfigurableWindow): {
    subscribe: (this: void, run: import("svelte/store").Subscriber<T | null>, invalidate?: ((value?: T | null | undefined) => void) | undefined) => import("svelte/store").Unsubscriber;
};
export { active_element as activeElement };