import { AbstractTreeNode, ArtColumn, ArtColumnMergePath } from "../interfaces";
export declare const groupMetaSymbol: unique symbol;
export declare const groupLevelMetaSymbol: unique symbol;
export declare const groupColumnNameMetaSymbol: unique symbol;
declare function groupBy<T extends AbstractTreeNode>(array: T[], key: string): T[][];
/** 对树状结构的数据进行分组.
 * layeredGroup 是一个递归的过程，
 * */
export declare function layeredGroup<T extends AbstractTreeNode>(array: T[], oldGroup: ArtColumn[], primaryKey: string | ((row: any) => string), parentKey?: string, level?: number, parentObj?: {}): T[];
/** 对树状结构的数据进行分组.
 * layeredGroup 是一个递归的过程，
 * */
export declare function layeredGroup2<T extends AbstractTreeNode>(array: T[], oldGroup: ArtColumn[], primaryKey: string | ((row: any) => string)): T[];
export declare class GroupUtils {
    static groupMetaSymbol: symbol;
    static groupLevelMetaSymbol: symbol;
    static protoMetaSymbol: symbol;
    static pathIndexMetaSymbol: symbol;
    static groupColumnNameMetaSymbol: symbol;
    /**分组数据(转换成二维数组)*/
    static groupBy: typeof groupBy;
    /**设置分组下标*/
    static setGroupIndex: <T extends ArtColumnMergePath = ArtColumnMergePath>(columns: T[]) => T[];
    /**移除分组下标*/
    static removeGroupIndex: <T extends ArtColumnMergePath = ArtColumnMergePath>(columns: T[]) => T[];
    /**一个数组中进行移动数据*/
    static replaceColumns: (columns: ArtColumnMergePath[], startPath: string, movePath: string) => ArtColumnMergePath[];
    /**两个个数组中进行移动数据*/
    static replaceColumns2: (startColumns: ArtColumnMergePath[], moveColumns: ArtColumnMergePath[], startPath: string, movePath: string, isAdd1: boolean) => {
        moveColumns: ArtColumnMergePath[];
        startColumns: ArtColumnMergePath[];
    };
}
export {};