///
import { TransformOptions, WritableTyped } from '../stream.model';
/**
* Allows "forking" a stream inside pipeline into a number of pipeline chains (2 or more).
* Currently does NOT (!) maintain backpressure.
* Error in the forked pipeline will propagate up to the main pipeline (and log error, to be sure).
* Will wait until all forked pipelines are completed before completing the stream.
*
* @experimental
*/
export declare function writableFork(chains: NodeJS.WritableStream[][], opt?: TransformOptions): WritableTyped;