import { ChangeSetOperatorFunction } from '../ChangeSetOperatorFunction';
import { DynamicDataError } from '../DynamicDataError';
/**
 * Projects each update item to a new form using the specified transform function
 * @typeparam TDestination The type of the destination.
 * @typeparam TSource The type of the source.
 * @typeparam TKey The type of the key.
 * @param transformFactory The transform factory.
 * @param transformOnRefresh Should a new transform be applied when a refresh event is received
 * @param exceptionCallback callback when exceptions happen
 */
export declare function transform<TSource, TKey, TDestination>(transformFactory: (current: TSource, key: TKey, previous: TSource | undefined) => TDestination, transformOnRefresh?: boolean, exceptionCallback?: (error: DynamicDataError<TSource, TKey>) => void): ChangeSetOperatorFunction<TSource, TKey, TDestination>;