import { VNode, VNodeChild } from 'vue';
import { ItemType, MenuKey, SubMenuType } from './interface';
export declare const MENU_OVERFLOW_KEY: MenuKey;
export declare function renderOverflowIndicator(): VNode;
export declare function createOverflowNode(children: ItemType[], indicator?: () => VNodeChild): SubMenuType;
export declare function splitOverflowItems(items: ItemType[], start: number, indicator?: () => VNodeChild): ItemType[];
export declare function flattenOverflowItems(nodes: ItemType[]): ItemType[];