import { Accessibility } from '../../types';
/**
 * @specification
 * Adds role='grid'.
 * Focus can be moved inside a child component with embeded inner FocusZone by pressing a specified key.
 * Provides arrow key navigation in vertical direction.
 * Focused active element of the component is reset when TAB from the component.
 * Triggers 'focus' action with 'Escape' on 'root'.
 * Applies 'gridRowBehavior' for 'row' child component.
 */
export declare const gridNestedBehavior: Accessibility;