/// <reference types="node" />
import { TransformTyped } from '../stream.model';
/**
 * Input: stream (objectMode=false) of arbitrary string|Buffer chunks, like when read from fs
 * Output: stream (objectMode=false) or string|Buffer chunks split by `separator` (@default to `\n`)
 *
 * Useful to, for example, reading NDJSON files from fs
 */
export declare function transformSplit(separator?: string): TransformTyped<string | Buffer, string | Buffer>;