/// <reference types="node" />
import { ProgressListener, ProgressTrackerInit } from "./ProgressTracker";
import { PassThrough } from "stream";
export interface ToLinesInput {
    readonly stream: NodeJS.ReadableStream;
    readonly encoding?: BufferEncoding;
}
export declare class LineSplitter {
    private onLine;
    private data;
    constructor(onLine: (line: string) => void);
    onData(str: string): void;
    close(): void;
}
export declare class Streams {
    static isValidStream(stream: NodeJS.ReadableStream): boolean;
    static toArray(stream: NodeJS.ReadableStream): Promise<ReadonlyArray<Uint8Array>>;
    static toLines(input: ToLinesInput, onLine: (line: string) => void, onCompleted: (err?: Error) => void): void;
    static toProgressStream(stream: NodeJS.ReadableStream, init: ProgressTrackerInit, listener: ProgressListener): PassThrough;
    static toBuffer(stream: NodeJS.ReadableStream): Promise<Buffer>;
}
export declare type StreamRangeFactory = (start: number, end: number) => NodeJS.ReadableStream;