import { Transform, TransformCallback } from 'stream';
export declare const DNS = "6ba7b810-9dad-11d1-80b4-00c04fd430c8";
export declare const URL = "6ba7b811-9dad-11d1-80b4-00c04fd430c8";
export default class UuidStream extends Transform {
    private hash;
    constructor(namespace?: string, version?: number);
    _write(chunk: Buffer, _encoding: BufferEncoding, callback: TransformCallback): void;
    _flush(callback: TransformCallback): void;
}