import { default as React } from 'react';
export interface NavigationMenuItem {
    /** Item label */
    label: React.ReactNode;
    /** Item href */
    href?: string;
    /** Click handler */
    onClick?: () => void;
    /** Sub-menu items */
    children?: NavigationMenuItem[];
    /** Icon */
    icon?: React.ReactNode;
    /** Active state */
    active?: boolean;
}
export interface NavigationMenuProps {
    /** Menu items */
    items: NavigationMenuItem[];
    /** Orientation */
    orientation?: 'horizontal' | 'vertical';
    /** Additional className */
    className?: string;
}
/**
 * NavigationMenu Component
 *
 * Hierarchical navigation menu with sub-menus.
 * Supports horizontal and vertical orientations.
 *
 * @example
 * ```tsx
 * <NavigationMenu
 *   items={[
 *     { label: 'Home', href: '/' },
 *     {
 *       label: 'Products',
 *       children: [
 *         { label: 'Category 1', href: '/products/cat1' },
 *         { label: 'Category 2', href: '/products/cat2' }
 *       ]
 *     },
 *     { label: 'About', href: '/about' }
 *   ]}
 * />
 * ```
 */
export declare const NavigationMenu: React.FC<NavigationMenuProps>;
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