import { TransformTyped } from '../stream.model';
/**
 * Transform that does nothing (pass the data through).
 * Can be used e.g to convert "not-valid" stream (e.g one that `transformMap` is producing)
 * into a "valid" stream (that implements async-iteration interface).
 */
export declare function transformNoOp<T = any>(): TransformTyped<T, T>;