import { Mapper } from '@naturalcycles/js-lib';
import { TransformTyped } from '../stream.model';
/**
 * Simplest version of `transformMap`.
 * errorMode: IMMEDIATE
 * Sync mode.
 * Has 0 options to configure.
 * If you need any configuration - use transformMap or transformMapSync.
 * Sync (not async) version of transformMap.
 * Supposedly faster, for cases when async is not needed.
 */
export declare function transformMapSimple<IN = any, OUT = IN>(mapper: Mapper<IN, OUT>): TransformTyped<IN, OUT>;