import { IPepSmartFilterOperator } from '@pepperi-addons/ngx-lib/smart-filters';
import { PepSmartFilterType } from '@pepperi-addons/ngx-lib/smart-filters';
export interface IPepQueryBuilderOperator {
    legacy: string;
    smartFilter: IPepSmartFilterOperator;
    type: PepSmartFilterType[] | null;
}
/**
 * gets a smart filter operator item
 * @param operator legacy operator
 * @param type smart filter's type
 * @returns smart filter operator item
 */
export declare function getSmartFilterOperator(operator: string, type: PepSmartFilterType): IPepSmartFilterOperator | null;
/**
 * gets a legacy operator value
 * @param operator smart filter operator item
 * @param type smart filter's type
 * @returns legacy operator value
 */
export declare function getLegacyOperator(operator: IPepSmartFilterOperator, type: PepSmartFilterType): string | null;