/**
 *
 * @param data 画布中的图数据
 * @param responseData 扩展出来的图数据
 * @returns
 */
export declare const handleExpand: (data: any, responseData: any) => {
    nodes: any;
    edges: any;
};
/** 数据去重 */
export declare const uniqueElementsBy: (arr: any[], fn: (arg0: any, arg1: any) => any) => any;