import { ColumnOrColumnGroupConfig, ObjectForExtending } from '../types';

export declare const useLastLvlColumnConfig: <RowType extends ObjectForExtending, SummaryRowType>(columnMaybeTreeConfig: readonly ColumnOrColumnGroupConfig<RowType, SummaryRowType>[]) => {
    columnConfig: readonly import('../types').ColumnConfig<RowType, SummaryRowType>[];
    allColsFlattened: import('./types').FlattenedColumnOrColumnGroupConfig<RowType, SummaryRowType>[];
    columnsGroupingIsActive: boolean;
};