import { Slots } from 'vue';
/**
 * @description:  获取插槽以防止空错误
 */
export declare function getSlot(slots: Slots, slot?: string, data?: any): import("vue").VNode<import("vue").RendererNode, import("vue").RendererElement, {
    [key: string]: any;
}>[] | null;
export declare function isEmptyElement(c: any): any;
export declare function isValidElement(element: any): any;
export declare const flattenChildren: (children?: never[], filterEmpty?: boolean) => any[];
/**
 * 扩展 插槽
 * @param slots
 * @param excludeKeys
 */
export declare function extendSlots(slots: Slots, excludeKeys?: string[]): any;