type AnyColumnOrGroup = {
    key: string;
    children?: readonly AnyColumnOrGroup[];
};
export declare const buildGroupPathByKey: (columnConfig: readonly AnyColumnOrGroup[]) => Map<string, string[]>;
export declare const getMaxGroupLevels: (groupPathByKey: ReadonlyMap<string, string[]>) => number;
export declare const computeGroupDepth: ({ hiddenKeys, leftKey, rightKey, groupPathByKey, levels, }: {
    hiddenKeys: readonly string[];
    leftKey: string | undefined;
    rightKey: string | undefined;
    groupPathByKey: ReadonlyMap<string, string[]>;
    levels: number;
}) => number;
export {};