import { DataColumn, HelperColumn } from "../components/DataGrid";
import { BillModel } from "../services/bill.service";
export declare type Data = {
    billCode: string;
    description: string;
    unit: string;
    quantity: string;
};
export declare const checkNullColumns: (keyof Data)[];
declare const config: {
    getDataColumns: (bills: BillModel[]) => DataColumn<Data>[];
    getHelperColumns: (components: BillModel[], itemsToDelete: string[], onSelect: (value: string) => void, selectAll: number, onSelectAll: () => void) => HelperColumn[];
    isDiff: (item: Data, obj: BillModel) => boolean;
    dataFromItem: (item?: BillModel | undefined) => Data;
};
export default config;