import { FC } from 'react';
import { ActionType, SubMenuProps } from '../MenuTypes';
/**
 * The SubMenu is meant to be used _only_ with the Menu component
 *
 * @example
 * <Menu menuRootElement={<MenuButton />}>
    <MenuItem>Item1</MenuItem>
    <SubMenu menuRootElement={<MenuItem>SubMenu</MenuItem>}>
      <MenuItem>Sub Item1</MenuItem>
      <MenuItem>Sub Item2</MenuItem>
      <MenuItem>Sub Item3</MenuItem>
      <SubMenu menuRootElement={<MenuItem>Sub SubMenu</MenuItem>}>
        <MenuItem>Sub Sub Item1</MenuItem>
        <MenuItem>Sub Sub Item2</MenuItem>
        <MenuItem>Sub Sub Item3</MenuItem>
      </SubMenu>
    </SubMenu>
    <MenuItem>Item3</MenuItem>
  </Menu>
 *
 * @see https://design.avayacloud.com/components/web/dropdown-web
 * @see https://neo-react-library-storybook.netlify.app/?path=/story/components-menu--multi-level-sub-menu
 */
export declare const SubMenu: FC<SubMenuProps>;
export declare function getClassNames(action?: ActionType): string;