import { IDataTable } from '../types/index';
interface UseGroupedColumnsReturn<T extends IDataTable.GenericRecord> {
    groupWidths: Record<string, number>;
    columns: IDataTable.Column<T>[];
    updateColumnWidth: (field: string, newWidth: number) => IDataTable.Column<T>[];
}
export declare function useGroupedColumns<T extends IDataTable.GenericRecord>(initialColumns: IDataTable.Column<T>[], visibleColumns?: string[]): UseGroupedColumnsReturn<T>;
export {};