/**
 * The callback triggered for each depth traversal in {@link walkActiveElement}. If this returns
 * `true`, the walking stops.
 *
 * @category Web : Elements
 * @category Package : @augment-vir/web
 * @package [`@augment-vir/web`](https://www.npmjs.com/package/@augment-vir/web)
 */
export type WalkActiveElementCallback = (params: {
    element: Element;
    depth: number;
}) => boolean | void | undefined;
/**
 * Get the currently active element and walks the shadow dom to find, if any, the truly active
 * element nested within the shadow dom.
 *
 * @category Web : Elements
 * @category Package : @augment-vir/web
 * @returns The depth that walking stopped at.
 * @package [`@augment-vir/web`](https://www.npmjs.com/package/@augment-vir/web)
 */
export declare function walkActiveElement(callback: WalkActiveElementCallback): number;