import type { ElementType } from 'react';
import type { DropdownMenuViewportProps } from './types';
/**
 * Scrollable region that wraps the menu items so long menus can scroll within a
 * bounded area instead of overflowing the viewport.
 *
 * Headless: renders a plain element with no visual opinions. Apply a `max-height`
 * and `overflow` (e.g. `overflow-y: auto`) via `className`/`style` to enable
 * scrolling. Defaults to `role="presentation"` so it stays transparent in the
 * accessibility tree, preserving the `menu` → `menuitem` structure.
 *
 * Purely presentational: keeping the highlighted item visible during keyboard
 * navigation and typeahead is handled centrally by `DropdownMenuContent`, so it
 * works whether or not the menu is wrapped in a `Viewport`.
 */
export declare const DropdownMenuViewport: {
    <T extends ElementType = "div">({ as, role, ref, ...props }: DropdownMenuViewportProps<T>): import("react/jsx-runtime").JSX.Element;
    displayName: string;
};