import { HeaderFooterKind } from '../../../../../document-api/src/index.js';
/**
 * Briefly highlight the painted header or footer regions that are on screen,
 * so the user sees where page numbers landed without the caret leaving the
 * body. Regions are read after the repaint that follows the mutation; nothing
 * happens when none is visible or the host is unavailable. `host` is the
 * document viewport host element.
 */
export declare function flashPageNumberRegions(host: HTMLElement | null | undefined, kind: HeaderFooterKind): Promise<void>;