import { DataColumnGroupProps, DataColumnProps } from '@epam/uui-core';
interface GroupOfColumns<TItem, TId> {
    type: 'group';
    group: DataColumnGroupProps;
    columns: DataColumnProps<TItem, TId>[];
}
export declare const isGroupOfColumns: <TItem, TId>(item: GroupOfColumns<TItem, TId> | DataColumnProps<TItem, TId>) => item is GroupOfColumns<TItem, TId>;
export declare const getGroupsWithColumns: <TItem, TId>(columnGroups: DataColumnGroupProps[], columns: DataColumnProps<TItem, TId>[]) => (DataColumnProps<TItem, TId, any> | GroupOfColumns<TItem, TId>)[];
export {};
//# sourceMappingURL=columnsGroupsUtils.d.ts.map