import * as plugins from './smartstream.plugins.js'; export class PassThrough extends plugins.stream.Duplex { constructor(options?: plugins.stream.DuplexOptions) { super(options); } _read(size: number): void { // No-op: Data written will be automatically available for reading. } _write(chunk: any, encoding: BufferEncoding, callback: (error?: Error | null) => void): void { if (this.push(chunk, encoding)) { callback(); } else { this.once('drain', () => { callback(); }); } } }