stream.d.ts

/**
 * A stream is an abstract interface for working with streaming data in Node.js.
 * The `stream` module provides an API for implementing the stream interface.
 *
 * There are many stream objects provided by Node.js. For instance, a `request to an HTTP server` and `process.stdout` are both stream instances.
 *
 * Streams can be readable, writable, or both. All streams are instances of `EventEmitter`.
 *
 * To access the `stream` module:
 *
 * ```js
 * const stream = require('stream');
 * ```
 *
 * The `stream` module is useful for creating new types of stream instances. It is
 * usually not necessary to use the `stream` module to consume streams.
 * @see [source](https://github.com/nodejs/node/blob/v17.0.0/lib/stream.js)
 */
declare module 'stream' {
    import { EventEmitter, Abortable } from 'node:events';
    import * as streamPromises from 'node:stream/promises';
    import * as streamConsumers from 'node:stream/consumers';
    class internal extends EventEmitter {
        pipe<T extends NodeJS.WritableStream>(
            destination: T,
            options?: {
                end?: boolean | undefined;
            }
        ): T;
    }
    namespace internal {
        class Stream extends internal {
            constructor(opts?: ReadableOptions);
        }
        interface StreamOptions<T extends Stream> extends Abortable {
            emitClose?: boolean | undefined;
            highWaterMark?: number | undefined;
            objectMode?: boolean | undefined;
            construct?(this: T, callback: (error?: Error | null) => void): void;
            destroy?(this: T, error: Error | null, callback: (error: Error | null) => void): void;
            autoDestroy?: boolean | undefined;
        }
        interface ReadableOptions extends StreamOptions<Readable> {
            encoding?: BufferEncoding | undefined;
            read?(this: Readable, size: number): void;
        }
        /**
         * @since v0.9.4
         */
        class Readable extends Stream implements NodeJS.ReadableStream {
            /**
             * A utility method for creating Readable Streams out of iterators.
             */
            static from(iterable: Iterable<any> | AsyncIterable<any>, options?: ReadableOptions): Readable;
            /**
             * Returns whether the stream has been read from or cancelled.
             * @since v16.8.0
             */
            static isDisturbed(stream: Readable | NodeJS.ReadableStream): boolean;
            /**
             * Returns whether the stream was destroyed or errored before emitting `'end'`.
             * @since v16.8.0
             * @experimental
             */
            readonly readableAborted: boolean;
            /**
             * Is `true` if it is safe to call `readable.read()`, which means
             * the stream has not been destroyed or emitted `'error'` or `'end'`.
             * @since v11.4.0
             */
            readable: boolean;
            /**
             * Returns whether `'data'` has been emitted.
             * @since v16.7.0, v14.18.0
             * @experimental
             */
            readonly readableDidRead: boolean;
            /**
             * Getter for the property `encoding` of a given `Readable` stream. The `encoding`property can be set using the `readable.setEncoding()` method.
             * @since v12.7.0
             */
            readonly readableEncoding: BufferEncoding | null;
            /**
             * Becomes `true` when `'end'` event is emitted.
             * @since v12.9.0
             */
            readonly readableEnded: boolean;
            /**
             * This property reflects the current state of a `Readable` stream as described
             * in the `Three states` section.
             * @since v9.4.0
             */
            readonly readableFlowing: boolean | null;
            /**
             * Returns the value of `highWaterMark` passed when creating this `Readable`.
             * @since v9.3.0
             */
            readonly readableHighWaterMark: number;
            /**
             * This property contains the number of bytes (or objects) in the queue
             * ready to be read. The value provides introspection data regarding
             * the status of the `highWaterMark`.
             * @since v9.4.0
             */
            readonly readableLength: number;
            /**
             * Getter for the property `objectMode` of a given `Readable` stream.
             * @since v12.3.0
             */
            readonly readableObjectMode: boolean;
            /**
             * Is `true` after `readable.destroy()` has been called.
             * @since v8.0.0
             */
            destroyed: boolean;
            constructor(opts?: ReadableOptions);
            _construct?(callback: (error?: Error | null) => void): void;
            _read(size: number): void;
            /**
             * The `readable.read()` method pulls some data out of the internal buffer and
             * returns it. If no data available to be read, `null` is returned. By default,
             * the data will be returned as a `Buffer` object unless an encoding has been
             * specified using the `readable.setEncoding()` method or the stream is operating
             * in object mode.
             *
             * The optional `size` argument specifies a specific number of bytes to read. If`size` bytes are not available to be read, `null` will be returned _unless_the stream has ended, in which
             * case all of the data remaining in the internal
             * buffer will be returned.
             *
             * If the `size` argument is not specified, all of the data contained in the
             * internal buffer will be returned.
             *
             * The `size` argument must be less than or equal to 1 GiB.
             *
             * The `readable.read()` method should only be called on `Readable` streams
             * operating in paused mode. In flowing mode, `readable.read()` is called
             * automatically until the internal buffer is fully drained.
             *
             * ```js
             * const readable = getReadableStreamSomehow();
             *
             * // 'readable' may be triggered multiple times as data is buffered in
             * readable.on('readable', () => {
             *   let chunk;
             *   console.log('Stream is readable (new data received in buffer)');
             *   // Use a loop to make sure we read all currently available data
             *   while (null !== (chunk = readable.read())) {
             *     console.log(`Read ${chunk.length} bytes of data...`);
             *   }
             * });
             *
             * // 'end' will be triggered once when there is no more data available
             * readable.on('end', () => {
             *   console.log('Reached end of stream.');
             * });
             * ```
             *
             * Each call to `readable.read()` returns a chunk of data, or `null`. The chunks
             * are not concatenated. A `while` loop is necessary to consume all data
             * currently in the buffer. When reading a large file `.read()` may return `null`,
             * having consumed all buffered content so far, but there is still more data to
             * come not yet buffered. In this case a new `'readable'` event will be emitted
             * when there is more data in the buffer. Finally the `'end'` event will be
             * emitted when there is no more data to come.
             *
             * Therefore to read a file's whole contents from a `readable`, it is necessary
             * to collect chunks across multiple `'readable'` events:
             *
             * ```js
             * const chunks = [];
             *
             * readable.on('readable', () => {
             *   let chunk;
             *   while (null !== (chunk = readable.read())) {
             *     chunks.push(chunk);
             *   }
             * });
             *
             * readable.on('end', () => {
             *   const content = chunks.join('');
             * });
             * ```
             *
             * A `Readable` stream in object mode will always return a single item from
             * a call to `readable.read(size)`, regardless of the value of the`size` argument.
             *
             * If the `readable.read()` method returns a chunk of data, a `'data'` event will
             * also be emitted.
             *
             * Calling {@link read} after the `'end'` event has
             * been emitted will return `null`. No runtime error will be raised.
             * @since v0.9.4
             * @param size Optional argument to specify how much data to read.
             */
            read(size?: number): any;
            /**
             * The `readable.setEncoding()` method sets the character encoding for
             * data read from the `Readable` stream.
             *
             * By default, no encoding is assigned and stream data will be returned as`Buffer` objects. Setting an encoding causes the stream data
             * to be returned as strings of the specified encoding rather than as `Buffer`objects. For instance, calling `readable.setEncoding('utf8')` will cause the
             * output data to be interpreted as UTF-8 data, and passed as strings. Calling`readable.setEncoding('hex')` will cause the data to be encoded in hexadecimal
             * string format.
             *
             * The `Readable` stream will properly handle multi-byte characters delivered
             * through the stream that would otherwise become improperly decoded if simply
             * pulled from the stream as `Buffer` objects.
             *
             * ```js
             * const readable = getReadableStreamSomehow();
             * readable.setEncoding('utf8');
             * readable.on('data', (chunk) => {
             *   assert.equal(typeof chunk, 'string');
             *   console.log('Got %d characters of string data:', chunk.length);
             * });
             * ```
             * @since v0.9.4
             * @param encoding The encoding to use.
             */
            setEncoding(encoding: BufferEncoding): this;
            /**
             * The `readable.pause()` method will cause a stream in flowing mode to stop
             * emitting `'data'` events, switching out of flowing mode. Any data that
             * becomes available will remain in the internal buffer.
             *
             * ```js
             * const readable = getReadableStreamSomehow();
             * readable.on('data', (chunk) => {
             *   console.log(`Received ${chunk.length} bytes of data.`);
             *   readable.pause();
             *   console.log('There will be no additional data for 1 second.');
             *   setTimeout(() => {
             *     console.log('Now data will start flowing again.');
             *     readable.resume();
             *   }, 1000);
             * });
             * ```
             *
             * The `readable.pause()` method has no effect if there is a `'readable'`event listener.
             * @since v0.9.4
             */
            pause(): this;
            /**
             * The `readable.resume()` method causes an explicitly paused `Readable` stream to
             * resume emitting `'data'` events, switching the stream into flowing mode.
             *
             * The `readable.resume()` method can be used to fully consume the data from a
             * stream without actually processing any of that data:
             *
             * ```js
             * getReadableStreamSomehow()
             *   .resume()
             *   .on('end', () => {
             *     console.log('Reached the end, but did not read anything.');
             *   });
             * ```
             *
             * The `readable.resume()` method has no effect if there is a `'readable'`event listener.
             * @since v0.9.4
             */
            resume(): this;
            /**
             * The `readable.isPaused()` method returns the current operating state of the`Readable`. This is used primarily by the mechanism that underlies the`readable.pipe()` method. In most
             * typical cases, there will be no reason to
             * use this method directly.
             *
             * ```js
             * const readable = new stream.Readable();
             *
             * readable.isPaused(); // === false
             * readable.pause();
             * readable.isPaused(); // === true
             * readable.resume();
             * readable.isPaused(); // === false
             * ```
             * @since v0.11.14
             */
            isPaused(): boolean;
            /**
             * The `readable.unpipe()` method detaches a `Writable` stream previously attached
             * using the {@link pipe} method.
             *
             * If the `destination` is not specified, then _all_ pipes are detached.
             *
             * If the `destination` is specified, but no pipe is set up for it, then
             * the method does nothing.
             *
             * ```js
             * const fs = require('fs');
             * const readable = getReadableStreamSomehow();
             * const writable = fs.createWriteStream('file.txt');
             * // All the data from readable goes into 'file.txt',
             * // but only for the first second.
             * readable.pipe(writable);
             * setTimeout(() => {
             *   console.log('Stop writing to file.txt.');
             *   readable.unpipe(writable);
             *   console.log('Manually close the file stream.');
             *   writable.end();
             * }, 1000);
             * ```
             * @since v0.9.4
             * @param destination Optional specific stream to unpipe
             */
            unpipe(destination?: NodeJS.WritableStream): this;
            /**
             * Passing `chunk` as `null` signals the end of the stream (EOF) and behaves the
             * same as `readable.push(null)`, after which no more data can be written. The EOF
             * signal is put at the end of the buffer and any buffered data will still be
             * flushed.
             *
             * The `readable.unshift()` method pushes a chunk of data back into the internal
             * buffer. This is useful in certain situations where a stream is being consumed by
             * code that needs to "un-consume" some amount of data that it has optimistically
             * pulled out of the source, so that the data can be passed on to some other party.
             *
             * The `stream.unshift(chunk)` method cannot be called after the `'end'` event
             * has been emitted or a runtime error will be thrown.
             *
             * Developers using `stream.unshift()` often should consider switching to
             * use of a `Transform` stream instead. See the `API for stream implementers` section for more information.
             *
             * ```js
             * // Pull off a header delimited by \n\n.
             * // Use unshift() if we get too much.
             * // Call the callback with (error, header, stream).
             * const { StringDecoder } = require('string_decoder');
             * function parseHeader(stream, callback) {
             *   stream.on('error', callback);
             *   stream.on('readable', onReadable);
             *   const decoder = new StringDecoder('utf8');
             *   let header = '';
             *   function onReadable() {
             *     let chunk;
             *     while (null !== (chunk = stream.read())) {
             *       const str = decoder.write(chunk);
             *       if (str.match(/\n\n/)) {
             *         // Found the header boundary.
             *         const split = str.split(/\n\n/);
             *         header += split.shift();
             *         const remaining = split.join('\n\n');
             *         const buf = Buffer.from(remaining, 'utf8');
             *         stream.removeListener('error', callback);
             *         // Remove the 'readable' listener before unshifting.
             *         stream.removeListener('readable', onReadable);
             *         if (buf.length)
             *           stream.unshift(buf);
             *         // Now the body of the message can be read from the stream.
             *         callback(null, header, stream);
             *       } else {
             *         // Still reading the header.
             *         header += str;
             *       }
             *     }
             *   }
             * }
             * ```
             *
             * Unlike {@link push}, `stream.unshift(chunk)` will not
             * end the reading process by resetting the internal reading state of the stream.
             * This can cause unexpected results if `readable.unshift()` is called during a
             * read (i.e. from within a {@link _read} implementation on a
             * custom stream). Following the call to `readable.unshift()` with an immediate {@link push} will reset the reading state appropriately,
             * however it is best to simply avoid calling `readable.unshift()` while in the
             * process of performing a read.
             * @since v0.9.11
             * @param chunk Chunk of data to unshift onto the read queue. For streams not operating in object mode, `chunk` must be a string, `Buffer`, `Uint8Array` or `null`. For object mode
             * streams, `chunk` may be any JavaScript value.
             * @param encoding Encoding of string chunks. Must be a valid `Buffer` encoding, such as `'utf8'` or `'ascii'`.
             */
            unshift(chunk: any, encoding?: BufferEncoding): void;
            /**
             * Prior to Node.js 0.10, streams did not implement the entire `stream` module API
             * as it is currently defined. (See `Compatibility` for more information.)
             *
             * When using an older Node.js library that emits `'data'` events and has a {@link pause} method that is advisory only, the`readable.wrap()` method can be used to create a `Readable`
             * stream that uses
             * the old stream as its data source.
             *
             * It will rarely be necessary to use `readable.wrap()` but the method has been
             * provided as a convenience for interacting with older Node.js applications and
             * libraries.
             *
             * ```js
             * const { OldReader } = require('./old-api-module.js');
             * const { Readable } = require('stream');
             * const oreader = new OldReader();
             * const myReader = new Readable().wrap(oreader);
             *
             * myReader.on('readable', () => {
             *   myReader.read(); // etc.
             * });
             * ```
             * @since v0.9.4
             * @param stream An "old style" readable stream
             */
            wrap(stream: NodeJS.ReadableStream): this;
            push(chunk: any, encoding?: BufferEncoding): boolean;
            _destroy(error: Error | null, callback: (error?: Error | null) => void): void;
            /**
             * Destroy the stream. Optionally emit an `'error'` event, and emit a `'close'`event (unless `emitClose` is set to `false`). After this call, the readable
             * stream will release any internal resources and subsequent calls to `push()`will be ignored.
             *
             * Once `destroy()` has been called any further calls will be a no-op and no
             * further errors except from `_destroy()` may be emitted as `'error'`.
             *
             * Implementors should not override this method, but instead implement `readable._destroy()`.
             * @since v8.0.0
             * @param error Error which will be passed as payload in `'error'` event
             */
            destroy(error?: Error): this;
            /**
             * Event emitter
             * The defined events on documents including:
             * 1. close
             * 2. data
             * 3. end
             * 4. error
             * 5. pause
             * 6. readable
             * 7. resume
             */
            addListener(event: 'close', listener: () => void): this;
            addListener(event: 'data', listener: (chunk: any) => void): this;
            addListener(event: 'end', listener: () => void): this;
            addListener(event: 'error', listener: (err: Error) => void): this;
            addListener(event: 'pause', listener: () => void): this;
            addListener(event: 'readable', listener: () => void): this;
            addListener(event: 'resume', listener: () => void): this;
            addListener(event: string | symbol, listener: (...args: any[]) => void): this;
            emit(event: 'close'): boolean;
            emit(event: 'data', chunk: any): boolean;
            emit(event: 'end'): boolean;
            emit(event: 'error', err: Error): boolean;
            emit(event: 'pause'): boolean;
            emit(event: 'readable'): boolean;
            emit(event: 'resume'): boolean;
            emit(event: string | symbol, ...args: any[]): boolean;
            on(event: 'close', listener: () => void): this;
            on(event: 'data', listener: (chunk: any) => void): this;
            on(event: 'end', listener: () => void): this;
            on(event: 'error', listener: (err: Error) => void): this;
            on(event: 'pause', listener: () => void): this;
            on(event: 'readable', listener: () => void): this;
            on(event: 'resume', listener: () => void): this;
            on(event: string | symbol, listener: (...args: any[]) => void): this;
            once(event: 'close', listener: () => void): this;
            once(event: 'data', listener: (chunk: any) => void): this;
            once(event: 'end', listener: () => void): this;
            once(event: 'error', listener: (err: Error) => void): this;
            once(event: 'pause', listener: () => void): this;
            once(event: 'readable', listener: () => void): this;
            once(event: 'resume', listener: () => void): this;
            once(event: string | symbol, listener: (...args: any[]) => void): this;
            prependListener(event: 'close', listener: () => void): this;
            prependListener(event: 'data', listener: (chunk: any) => void): this;
            prependListener(event: 'end', listener: () => void): this;
            prependListener(event: 'error', listener: (err: Error) => void): this;
            prependListener(event: 'pause', listener: () => void): this;
            prependListener(event: 'readable', listener: () => void): this;
            prependListener(event: 'resume', listener: () => void): this;
            prependListener(event: string | symbol, listener: (...args: any[]) => void): this;
            prependOnceListener(event: 'close', listener: () => void): this;
            prependOnceListener(event: 'data', listener: (chunk: any) => void): this;
            prependOnceListener(event: 'end', listener: () => void): this;
            prependOnceListener(event: 'error', listener: (err: Error) => void): this;
            prependOnceListener(event: 'pause', listener: () => void): this;
            prependOnceListener(event: 'readable', listener: () => void): this;
            prependOnceListener(event: 'resume', listener: () => void): this;
            prependOnceListener(event: string | symbol, listener: (...args: any[]) => void): this;
            removeListener(event: 'close', listener: () => void): this;
            removeListener(event: 'data', listener: (chunk: any) => void): this;
            removeListener(event: 'end', listener: () => void): this;
            removeListener(event: 'error', listener: (err: Error) => void): this;
            removeListener(event: 'pause', listener: () => void): this;
            removeListener(event: 'readable', listener: () => void): this;
            removeListener(event: 'resume', listener: () => void): this;
            removeListener(event: string | symbol, listener: (...args: any[]) => void): this;
            [Symbol.asyncIterator](): AsyncIterableIterator<any>;
        }
        interface WritableOptions extends StreamOptions<Writable> {
            decodeStrings?: boolean | undefined;
            defaultEncoding?: BufferEncoding | undefined;
            write?(this: Writable, chunk: any, encoding: BufferEncoding, callback: (error?: Error | null) => void): void;
            writev?(
                this: Writable,
                chunks: Array<{
                    chunk: any;
                    encoding: BufferEncoding;
                }>,
                callback: (error?: Error | null) => void
            ): void;
            final?(this: Writable, callback: (error?: Error | null) => void): void;
        }
        /**
         * @since v0.9.4
         */
        class Writable extends Stream implements NodeJS.WritableStream {
            /**
             * Is `true` if it is safe to call `writable.write()`, which means
             * the stream has not been destroyed, errored or ended.
             * @since v11.4.0
             */
            readonly writable: boolean;
            /**
             * Is `true` after `writable.end()` has been called. This property
             * does not indicate whether the data has been flushed, for this use `writable.writableFinished` instead.
             * @since v12.9.0
             */
            readonly writableEnded: boolean;
            /**
             * Is set to `true` immediately before the `'finish'` event is emitted.
             * @since v12.6.0
             */
            readonly writableFinished: boolean;
            /**
             * Return the value of `highWaterMark` passed when creating this `Writable`.
             * @since v9.3.0
             */
            readonly writableHighWaterMark: number;
            /**
             * This property contains the number of bytes (or objects) in the queue
             * ready to be written. The value provides introspection data regarding
             * the status of the `highWaterMark`.
             * @since v9.4.0
             */
            readonly writableLength: number;
            /**
             * Getter for the property `objectMode` of a given `Writable` stream.
             * @since v12.3.0
             */
            readonly writableObjectMode: boolean;
            /**
             * Number of times `writable.uncork()` needs to be
             * called in order to fully uncork the stream.
             * @since v13.2.0, v12.16.0
             */
            readonly writableCorked: number;
            /**
             * Is `true` after `writable.destroy()` has been called.
             * @since v8.0.0
             */
            destroyed: boolean;
            constructor(opts?: WritableOptions);
            _write(chunk: any, encoding: BufferEncoding, callback: (error?: Error | null) => void): void;
            _writev?(
                chunks: Array<{
                    chunk: any;
                    encoding: BufferEncoding;
                }>,
                callback: (error?: Error | null) => void
            ): void;
            _construct?(callback: (error?: Error | null) => void): void;
            _destroy(error: Error | null, callback: (error?: Error | null) => void): void;
            _final(callback: (error?: Error | null) => void): void;
            /**
             * The `writable.write()` method writes some data to the stream, and calls the
             * supplied `callback` once the data has been fully handled. If an error
             * occurs, the `callback` will be called with the error as its
             * first argument. The `callback` is called asynchronously and before `'error'` is
             * emitted.
             *
             * The return value is `true` if the internal buffer is less than the`highWaterMark` configured when the stream was created after admitting `chunk`.
             * If `false` is returned, further attempts to write data to the stream should
             * stop until the `'drain'` event is emitted.
             *
             * While a stream is not draining, calls to `write()` will buffer `chunk`, and
             * return false. Once all currently buffered chunks are drained (accepted for
             * delivery by the operating system), the `'drain'` event will be emitted.
             * It is recommended that once `write()` returns false, no more chunks be written
             * until the `'drain'` event is emitted. While calling `write()` on a stream that
             * is not draining is allowed, Node.js will buffer all written chunks until
             * maximum memory usage occurs, at which point it will abort unconditionally.
             * Even before it aborts, high memory usage will cause poor garbage collector
             * performance and high RSS (which is not typically released back to the system,
             * even after the memory is no longer required). Since TCP sockets may never
             * drain if the remote peer does not read the data, writing a socket that is
             * not draining may lead to a remotely exploitable vulnerability.
             *
             * Writing data while the stream is not draining is particularly
             * problematic for a `Transform`, because the `Transform` streams are paused
             * by default until they are piped or a `'data'` or `'readable'` event handler
             * is added.
             *
             * If the data to be written can be generated or fetched on demand, it is
             * recommended to encapsulate the logic into a `Readable` and use {@link pipe}. However, if calling `write()` is preferred, it is
             * possible to respect backpressure and avoid memory issues using the `'drain'` event:
             *
             * ```js
             * function write(data, cb) {
             *   if (!stream.write(data)) {
             *     stream.once('drain', cb);
             *   } else {
             *     process.nextTick(cb);
             *   }
             * }
             *
             * // Wait for cb to be called before doing any other write.
             * write('hello', () => {
             *   console.log('Write completed, do more writes now.');
             * });
             * ```
             *
             * A `Writable` stream in object mode will always ignore the `encoding` argument.
             * @since v0.9.4
             * @param chunk Optional data to write. For streams not operating in object mode, `chunk` must be a string, `Buffer` or `Uint8Array`. For object mode streams, `chunk` may be any
             * JavaScript value other than `null`.
             * @param [encoding='utf8'] The encoding, if `chunk` is a string.
             * @param callback Callback for when this chunk of data is flushed.
             * @return `false` if the stream wishes for the calling code to wait for the `'drain'` event to be emitted before continuing to write additional data; otherwise `true`.
             */
            write(chunk: any, callback?: (error: Error | null | undefined) => void): boolean;
            write(chunk: any, encoding: BufferEncoding, callback?: (error: Error | null | undefined) => void): boolean;
            /**
             * The `writable.setDefaultEncoding()` method sets the default `encoding` for a `Writable` stream.
             * @since v0.11.15
             * @param encoding The new default encoding
             */
            setDefaultEncoding(encoding: BufferEncoding): this;
            /**
             * Calling the `writable.end()` method signals that no more data will be written
             * to the `Writable`. The optional `chunk` and `encoding` arguments allow one
             * final additional chunk of data to be written immediately before closing the
             * stream.
             *
             * Calling the {@link write} method after calling {@link end} will raise an error.
             *
             * ```js
             * // Write 'hello, ' and then end with 'world!'.
             * const fs = require('fs');
             * const file = fs.createWriteStream('example.txt');
             * file.write('hello, ');
             * file.end('world!');
             * // Writing more now is not allowed!
             * ```
             * @since v0.9.4
             * @param chunk Optional data to write. For streams not operating in object mode, `chunk` must be a string, `Buffer` or `Uint8Array`. For object mode streams, `chunk` may be any
             * JavaScript value other than `null`.
             * @param encoding The encoding if `chunk` is a string
             * @param callback Callback for when the stream is finished.
             */
            end(cb?: () => void): this;
            end(chunk: any, cb?: () => void): this;
            end(chunk: any, encoding: BufferEncoding, cb?: () => void): this;
            /**
             * The `writable.cork()` method forces all written data to be buffered in memory.
             * The buffered data will be flushed when either the {@link uncork} or {@link end} methods are called.
             *
             * The primary intent of `writable.cork()` is to accommodate a situation in which
             * several small chunks are written to the stream in rapid succession. Instead of
             * immediately forwarding them to the underlying destination, `writable.cork()`buffers all the chunks until `writable.uncork()` is called, which will pass them
             * all to `writable._writev()`, if present. This prevents a head-of-line blocking
             * situation where data is being buffered while waiting for the first small chunk
             * to be processed. However, use of `writable.cork()` without implementing`writable._writev()` may have an adverse effect on throughput.
             *
             * See also: `writable.uncork()`, `writable._writev()`.
             * @since v0.11.2
             */
            cork(): void;
            /**
             * The `writable.uncork()` method flushes all data buffered since {@link cork} was called.
             *
             * When using `writable.cork()` and `writable.uncork()` to manage the buffering
             * of writes to a stream, it is recommended that calls to `writable.uncork()` be
             * deferred using `process.nextTick()`. Doing so allows batching of all`writable.write()` calls that occur within a given Node.js event loop phase.
             *
             * ```js
             * stream.cork();
             * stream.write('some ');
             * stream.write('data ');
             * process.nextTick(() => stream.uncork());
             * ```
             *
             * If the `writable.cork()` method is called multiple times on a stream, the
             * same number of calls to `writable.uncork()` must be called to flush the buffered
             * data.
             *
             * ```js
             * stream.cork();
             * stream.write('some ');
             * stream.cork();
             * stream.write('data ');
             * process.nextTick(() => {
             *   stream.uncork();
             *   // The data will not be flushed until uncork() is called a second time.
             *   stream.uncork();
             * });
             * ```
             *
             * See also: `writable.cork()`.
             * @since v0.11.2
             */
            uncork(): void;
            /**
             * Destroy the stream. Optionally emit an `'error'` event, and emit a `'close'`event (unless `emitClose` is set to `false`). After this call, the writable
             * stream has ended and subsequent calls to `write()` or `end()` will result in
             * an `ERR_STREAM_DESTROYED` error.
             * This is a destructive and immediate way to destroy a stream. Previous calls to`write()` may not have drained, and may trigger an `ERR_STREAM_DESTROYED` error.
             * Use `end()` instead of destroy if data should flush before close, or wait for
             * the `'drain'` event before destroying the stream.
             *
             * Once `destroy()` has been called any further calls will be a no-op and no
             * further errors except from `_destroy()` may be emitted as `'error'`.
             *
             * Implementors should not override this method,
             * but instead implement `writable._destroy()`.
             * @since v8.0.0
             * @param error Optional, an error to emit with `'error'` event.
             */
            destroy(error?: Error): this;
            /**
             * Event emitter
             * The defined events on documents including:
             * 1. close
             * 2. drain
             * 3. error
             * 4. finish
             * 5. pipe
             * 6. unpipe
             */
            addListener(event: 'close', listener: () => void): this;
            addListener(event: 'drain', listener: () => void): this;
            addListener(event: 'error', listener: (err: Error) => void): this;
            addListener(event: 'finish', listener: () => void): this;
            addListener(event: 'pipe', listener: (src: Readable) => void): this;
            addListener(event: 'unpipe', listener: (src: Readable) => void): this;
            addListener(event: string | symbol, listener: (...args: any[]) => void): this;
            emit(event: 'close'): boolean;
            emit(event: 'drain'): boolean;
            emit(event: 'error', err: Error): boolean;
            emit(event: 'finish'): boolean;
            emit(event: 'pipe', src: Readable): boolean;
            emit(event: 'unpipe', src: Readable): boolean;
            emit(event: string | symbol, ...args: any[]): boolean;
            on(event: 'close', listener: () => void): this;
            on(event: 'drain', listener: () => void): this;
            on(event: 'error', listener: (err: Error) => void): this;
            on(event: 'finish', listener: () => void): this;
            on(event: 'pipe', listener: (src: Readable) => void): this;
            on(event: 'unpipe', listener: (src: Readable) => void): this;
            on(event: string | symbol, listener: (...args: any[]) => void): this;
            once(event: 'close', listener: () => void): this;
            once(event: 'drain', listener: () => void): this;
            once(event: 'error', listener: (err: Error) => void): this;
            once(event: 'finish', listener: () => void): this;
            once(event: 'pipe', listener: (src: Readable) => void): this;
            once(event: 'unpipe', listener: (src: Readable) => void): this;
            once(event: string | symbol, listener: (...args: any[]) => void): this;
            prependListener(event: 'close', listener: () => void): this;
            prependListener(event: 'drain', listener: () => void): this;
            prependListener(event: 'error', listener: (err: Error) => void): this;
            prependListener(event: 'finish', listener: () => void): this;
            prependListener(event: 'pipe', listener: (src: Readable) => void): this;
            prependListener(event: 'unpipe', listener: (src: Readable) => void): this;
            prependListener(event: string | symbol, listener: (...args: any[]) => void): this;
            prependOnceListener(event: 'close', listener: () => void): this;
            prependOnceListener(event: 'drain', listener: () => void): this;
            prependOnceListener(event: 'error', listener: (err: Error) => void): this;
            prependOnceListener(event: 'finish', listener: () => void): this;
            prependOnceListener(event: 'pipe', listener: (src: Readable) => void): this;
            prependOnceListener(event: 'unpipe', listener: (src: Readable) => void): this;
            prependOnceListener(event: string | symbol, listener: (...args: any[]) => void): this;
            removeListener(event: 'close', listener: () => void): this;
            removeListener(event: 'drain', listener: () => void): this;
            removeListener(event: 'error', listener: (err: Error) => void): this;
            removeListener(event: 'finish', listener: () => void): this;
            removeListener(event: 'pipe', listener: (src: Readable) => void): this;
            removeListener(event: 'unpipe', listener: (src: Readable) => void): this;
            removeListener(event: string | symbol, listener: (...args: any[]) => void): this;
        }
        interface DuplexOptions extends ReadableOptions, WritableOptions {
            allowHalfOpen?: boolean | undefined;
            readableObjectMode?: boolean | undefined;
            writableObjectMode?: boolean | undefined;
            readableHighWaterMark?: number | undefined;
            writableHighWaterMark?: number | undefined;
            writableCorked?: number | undefined;
            construct?(this: Duplex, callback: (error?: Error | null) => void): void;
            read?(this: Duplex, size: number): void;
            write?(this: Duplex, chunk: any, encoding: BufferEncoding, callback: (error?: Error | null) => void): void;
            writev?(
                this: Duplex,
                chunks: Array<{
                    chunk: any;
                    encoding: BufferEncoding;
                }>,
                callback: (error?: Error | null) => void
            ): void;
            final?(this: Duplex, callback: (error?: Error | null) => void): void;
            destroy?(this: Duplex, error: Error | null, callback: (error: Error | null) => void): void;
        }
        /**
         * Duplex streams are streams that implement both the `Readable` and `Writable` interfaces.
         *
         * Examples of `Duplex` streams include:
         *
         * * `TCP sockets`
         * * `zlib streams`
         * * `crypto streams`
         * @since v0.9.4
         */
        class Duplex extends Readable implements Writable {
            readonly writable: boolean;
            readonly writableEnded: boolean;
            readonly writableFinished: boolean;
            readonly writableHighWaterMark: number;
            readonly writableLength: number;
            readonly writableObjectMode: boolean;
            readonly writableCorked: number;
            /**
             * If `false` then the stream will automatically end the writable side when the
             * readable side ends. Set initially by the `allowHalfOpen` constructor option,
             * which defaults to `false`.
             *
             * This can be changed manually to change the half-open behavior of an existing`Duplex` stream instance, but must be changed before the `'end'` event is
             * emitted.
             * @since v0.9.4
             */
            allowHalfOpen: boolean;
            constructor(opts?: DuplexOptions);
            /**
             * A utility method for creating duplex streams.
             *
             * - `Stream` converts writable stream into writable `Duplex` and readable stream
             *   to `Duplex`.
             * - `Blob` converts into readable `Duplex`.
             * - `string` converts into readable `Duplex`.
             * - `ArrayBuffer` converts into readable `Duplex`.
             * - `AsyncIterable` converts into a readable `Duplex`. Cannot yield `null`.
             * - `AsyncGeneratorFunction` converts into a readable/writable transform
             *   `Duplex`. Must take a source `AsyncIterable` as first parameter. Cannot yield
             *   `null`.
             * - `AsyncFunction` converts into a writable `Duplex`. Must return
             *   either `null` or `undefined`
             * - `Object ({ writable, readable })` converts `readable` and
             *   `writable` into `Stream` and then combines them into `Duplex` where the
             *   `Duplex` will write to the `writable` and read from the `readable`.
             * - `Promise` converts into readable `Duplex`. Value `null` is ignored.
             *
             * @since v16.8.0
             */
            static from(src: Stream | Blob | ArrayBuffer | string | Iterable<any> | AsyncIterable<any> | AsyncGeneratorFunction | Promise<any> | Object): Duplex;
            _write(chunk: any, encoding: BufferEncoding, callback: (error?: Error | null) => void): void;
            _writev?(
                chunks: Array<{
                    chunk: any;
                    encoding: BufferEncoding;
                }>,
                callback: (error?: Error | null) => void
            ): void;
            _destroy(error: Error | null, callback: (error: Error | null) => void): void;
            _final(callback: (error?: Error | null) => void): void;
            write(chunk: any, encoding?: BufferEncoding, cb?: (error: Error | null | undefined) => void): boolean;
            write(chunk: any, cb?: (error: Error | null | undefined) => void): boolean;
            setDefaultEncoding(encoding: BufferEncoding): this;
            end(cb?: () => void): this;
            end(chunk: any, cb?: () => void): this;
            end(chunk: any, encoding?: BufferEncoding, cb?: () => void): this;
            cork(): void;
            uncork(): void;
        }
        type TransformCallback = (error?: Error | null, data?: any) => void;
        interface TransformOptions extends DuplexOptions {
            construct?(this: Transform, callback: (error?: Error | null) => void): void;
            read?(this: Transform, size: number): void;
            write?(this: Transform, chunk: any, encoding: BufferEncoding, callback: (error?: Error | null) => void): void;
            writev?(
                this: Transform,
                chunks: Array<{
                    chunk: any;
                    encoding: BufferEncoding;
                }>,
                callback: (error?: Error | null) => void
            ): void;
            final?(this: Transform, callback: (error?: Error | null) => void): void;
            destroy?(this: Transform, error: Error | null, callback: (error: Error | null) => void): void;
            transform?(this: Transform, chunk: any, encoding: BufferEncoding, callback: TransformCallback): void;
            flush?(this: Transform, callback: TransformCallback): void;
        }
        /**
         * Transform streams are `Duplex` streams where the output is in some way
         * related to the input. Like all `Duplex` streams, `Transform` streams
         * implement both the `Readable` and `Writable` interfaces.
         *
         * Examples of `Transform` streams include:
         *
         * * `zlib streams`
         * * `crypto streams`
         * @since v0.9.4
         */
        class Transform extends Duplex {
            constructor(opts?: TransformOptions);
            _transform(chunk: any, encoding: BufferEncoding, callback: TransformCallback): void;
            _flush(callback: TransformCallback): void;
        }
        /**
         * The `stream.PassThrough` class is a trivial implementation of a `Transform` stream that simply passes the input bytes across to the output. Its purpose is
         * primarily for examples and testing, but there are some use cases where`stream.PassThrough` is useful as a building block for novel sorts of streams.
         */
        class PassThrough extends Transform {}
        /**
         * Attaches an AbortSignal to a readable or writeable stream. This lets code
         * control stream destruction using an `AbortController`.
         *
         * Calling `abort` on the `AbortController` corresponding to the passed`AbortSignal` will behave the same way as calling `.destroy(new AbortError())`on the stream.
         *
         * ```js
         * const fs = require('fs');
         *
         * const controller = new AbortController();
         * const read = addAbortSignal(
         *   controller.signal,
         *   fs.createReadStream(('object.json'))
         * );
         * // Later, abort the operation closing the stream
         * controller.abort();
         * ```
         *
         * Or using an `AbortSignal` with a readable stream as an async iterable:
         *
         * ```js
         * const controller = new AbortController();
         * setTimeout(() => controller.abort(), 10_000); // set a timeout
         * const stream = addAbortSignal(
         *   controller.signal,
         *   fs.createReadStream(('object.json'))
         * );
         * (async () => {
         *   try {
         *     for await (const chunk of stream) {
         *       await process(chunk);
         *     }
         *   } catch (e) {
         *     if (e.name === 'AbortError') {
         *       // The operation was cancelled
         *     } else {
         *       throw e;
         *     }
         *   }
         * })();
         * ```
         * @since v15.4.0
         * @param signal A signal representing possible cancellation
         * @param stream a stream to attach a signal to
         */
        function addAbortSignal<T extends Stream>(signal: AbortSignal, stream: T): T;
        interface FinishedOptions extends Abortable {
            error?: boolean | undefined;
            readable?: boolean | undefined;
            writable?: boolean | undefined;
        }
        /**
         * A function to get notified when a stream is no longer readable, writable
         * or has experienced an error or a premature close event.
         *
         * ```js
         * const { finished } = require('stream');
         *
         * const rs = fs.createReadStream('archive.tar');
         *
         * finished(rs, (err) => {
         *   if (err) {
         *     console.error('Stream failed.', err);
         *   } else {
         *     console.log('Stream is done reading.');
         *   }
         * });
         *
         * rs.resume(); // Drain the stream.
         * ```
         *
         * Especially useful in error handling scenarios where a stream is destroyed
         * prematurely (like an aborted HTTP request), and will not emit `'end'`or `'finish'`.
         *
         * The `finished` API provides promise version:
         *
         * ```js
         * const { finished } = require('stream/promises');
         *
         * const rs = fs.createReadStream('archive.tar');
         *
         * async function run() {
         *   await finished(rs);
         *   console.log('Stream is done reading.');
         * }
         *
         * run().catch(console.error);
         * rs.resume(); // Drain the stream.
         * ```
         *
         * `stream.finished()` leaves dangling event listeners (in particular`'error'`, `'end'`, `'finish'` and `'close'`) after `callback` has been
         * invoked. The reason for this is so that unexpected `'error'` events (due to
         * incorrect stream implementations) do not cause unexpected crashes.
         * If this is unwanted behavior then the returned cleanup function needs to be
         * invoked in the callback:
         *
         * ```js
         * const cleanup = finished(rs, (err) => {
         *   cleanup();
         *   // ...
         * });
         * ```
         * @since v10.0.0
         * @param stream A readable and/or writable stream.
         * @param callback A callback function that takes an optional error argument.
         * @return A cleanup function which removes all registered listeners.
         */
        function finished(stream: NodeJS.ReadableStream | NodeJS.WritableStream | NodeJS.ReadWriteStream, options: FinishedOptions, callback: (err?: NodeJS.ErrnoException | null) => void): () => void;
        function finished(stream: NodeJS.ReadableStream | NodeJS.WritableStream | NodeJS.ReadWriteStream, callback: (err?: NodeJS.ErrnoException | null) => void): () => void;
        namespace finished {
            function __promisify__(stream: NodeJS.ReadableStream | NodeJS.WritableStream | NodeJS.ReadWriteStream, options?: FinishedOptions): Promise<void>;
        }
        type PipelineSourceFunction<T> = () => Iterable<T> | AsyncIterable<T>;
        type PipelineSource<T> = Iterable<T> | AsyncIterable<T> | NodeJS.ReadableStream | PipelineSourceFunction<T>;
        type PipelineTransform<S extends PipelineTransformSource<any>, U> =
            | NodeJS.ReadWriteStream
            | ((source: S extends (...args: any[]) => Iterable<infer ST> | AsyncIterable<infer ST> ? AsyncIterable<ST> : S) => AsyncIterable<U>);
        type PipelineTransformSource<T> = PipelineSource<T> | PipelineTransform<any, T>;
        type PipelineDestinationIterableFunction<T> = (source: AsyncIterable<T>) => AsyncIterable<any>;
        type PipelineDestinationPromiseFunction<T, P> = (source: AsyncIterable<T>) => Promise<P>;
        type PipelineDestination<S extends PipelineTransformSource<any>, P> = S extends PipelineTransformSource<infer ST>
            ? NodeJS.WritableStream | PipelineDestinationIterableFunction<ST> | PipelineDestinationPromiseFunction<ST, P>
            : never;
        type PipelineCallback<S extends PipelineDestination<any, any>> = S extends PipelineDestinationPromiseFunction<any, infer P>
            ? (err: NodeJS.ErrnoException | null, value: P) => void
            : (err: NodeJS.ErrnoException | null) => void;
        type PipelinePromise<S extends PipelineDestination<any, any>> = S extends PipelineDestinationPromiseFunction<any, infer P> ? Promise<P> : Promise<void>;
        interface PipelineOptions {
            signal: AbortSignal;
        }
        /**
         * A module method to pipe between streams and generators forwarding errors and
         * properly cleaning up and provide a callback when the pipeline is complete.
         *
         * ```js
         * const { pipeline } = require('stream');
         * const fs = require('fs');
         * const zlib = require('zlib');
         *
         * // Use the pipeline API to easily pipe a series of streams
         * // together and get notified when the pipeline is fully done.
         *
         * // A pipeline to gzip a potentially huge tar file efficiently:
         *
         * pipeline(
         *   fs.createReadStream('archive.tar'),
         *   zlib.createGzip(),
         *   fs.createWriteStream('archive.tar.gz'),
         *   (err) => {
         *     if (err) {
         *       console.error('Pipeline failed.', err);
         *     } else {
         *       console.log('Pipeline succeeded.');
         *     }
         *   }
         * );
         * ```
         *
         * The `pipeline` API provides a promise version, which can also
         * receive an options argument as the last parameter with a`signal` `AbortSignal` property. When the signal is aborted,`destroy` will be called on the underlying pipeline, with
         * an`AbortError`.
         *
         * ```js
         * const { pipeline } = require('stream/promises');
         *
         * async function run() {
         *   await pipeline(
         *     fs.createReadStream('archive.tar'),
         *     zlib.createGzip(),
         *     fs.createWriteStream('archive.tar.gz')
         *   );
         *   console.log('Pipeline succeeded.');
         * }
         *
         * run().catch(console.error);
         * ```
         *
         * To use an `AbortSignal`, pass it inside an options object,
         * as the last argument:
         *
         * ```js
         * const { pipeline } = require('stream/promises');
         *
         * async function run() {
         *   const ac = new AbortController();
         *   const signal = ac.signal;
         *
         *   setTimeout(() => ac.abort(), 1);
         *   await pipeline(
         *     fs.createReadStream('archive.tar'),
         *     zlib.createGzip(),
         *     fs.createWriteStream('archive.tar.gz'),
         *     { signal },
         *   );
         * }
         *
         * run().catch(console.error); // AbortError
         * ```
         *
         * The `pipeline` API also supports async generators:
         *
         * ```js
         * const { pipeline } = require('stream/promises');
         * const fs = require('fs');
         *
         * async function run() {
         *   await pipeline(
         *     fs.createReadStream('lowercase.txt'),
         *     async function* (source, signal) {
         *       source.setEncoding('utf8');  // Work with strings rather than `Buffer`s.
         *       for await (const chunk of source) {
         *         yield await processChunk(chunk, { signal });
         *       }
         *     },
         *     fs.createWriteStream('uppercase.txt')
         *   );
         *   console.log('Pipeline succeeded.');
         * }
         *
         * run().catch(console.error);
         * ```
         *
         * Remember to handle the `signal` argument passed into the async generator.
         * Especially in the case where the async generator is the source for the
         * pipeline (i.e. first argument) or the pipeline will never complete.
         *
         * ```js
         * const { pipeline } = require('stream/promises');
         * const fs = require('fs');
         *
         * async function run() {
         *   await pipeline(
         *     async function * (signal) {
         *       await someLongRunningfn({ signal });
         *       yield 'asd';
         *     },
         *     fs.createWriteStream('uppercase.txt')
         *   );
         *   console.log('Pipeline succeeded.');
         * }
         *
         * run().catch(console.error);
         * ```
         *
         * `stream.pipeline()` will call `stream.destroy(err)` on all streams except:
         *
         * * `Readable` streams which have emitted `'end'` or `'close'`.
         * * `Writable` streams which have emitted `'finish'` or `'close'`.
         *
         * `stream.pipeline()` leaves dangling event listeners on the streams
         * after the `callback` has been invoked. In the case of reuse of streams after
         * failure, this can cause event listener leaks and swallowed errors.
         * @since v10.0.0
         * @param callback Called when the pipeline is fully done.
         */
        function pipeline<A extends PipelineSource<any>, B extends PipelineDestination<A, any>>(
            source: A,
            destination: B,
            callback?: PipelineCallback<B>
        ): B extends NodeJS.WritableStream ? B : NodeJS.WritableStream;
        function pipeline<A extends PipelineSource<any>, T1 extends PipelineTransform<A, any>, B extends PipelineDestination<T1, any>>(
            source: A,
            transform1: T1,
            destination: B,
            callback?: PipelineCallback<B>
        ): B extends NodeJS.WritableStream ? B : NodeJS.WritableStream;
        function pipeline<A extends PipelineSource<any>, T1 extends PipelineTransform<A, any>, T2 extends PipelineTransform<T1, any>, B extends PipelineDestination<T2, any>>(
            source: A,
            transform1: T1,
            transform2: T2,
            destination: B,
            callback?: PipelineCallback<B>
        ): B extends NodeJS.WritableStream ? B : NodeJS.WritableStream;
        function pipeline<
            A extends PipelineSource<any>,
            T1 extends PipelineTransform<A, any>,
            T2 extends PipelineTransform<T1, any>,
            T3 extends PipelineTransform<T2, any>,
            B extends PipelineDestination<T3, any>
        >(source: A, transform1: T1, transform2: T2, transform3: T3, destination: B, callback?: PipelineCallback<B>): B extends NodeJS.WritableStream ? B : NodeJS.WritableStream;
        function pipeline<
            A extends PipelineSource<any>,
            T1 extends PipelineTransform<A, any>,
            T2 extends PipelineTransform<T1, any>,
            T3 extends PipelineTransform<T2, any>,
            T4 extends PipelineTransform<T3, any>,
            B extends PipelineDestination<T4, any>
        >(source: A, transform1: T1, transform2: T2, transform3: T3, transform4: T4, destination: B, callback?: PipelineCallback<B>): B extends NodeJS.WritableStream ? B : NodeJS.WritableStream;
        function pipeline(
            streams: ReadonlyArray<NodeJS.ReadableStream | NodeJS.WritableStream | NodeJS.ReadWriteStream>,
            callback?: (err: NodeJS.ErrnoException | null) => void
        ): NodeJS.WritableStream;
        function pipeline(
            stream1: NodeJS.ReadableStream,
            stream2: NodeJS.ReadWriteStream | NodeJS.WritableStream,
            ...streams: Array<NodeJS.ReadWriteStream | NodeJS.WritableStream | ((err: NodeJS.ErrnoException | null) => void)>
        ): NodeJS.WritableStream;
        namespace pipeline {
            function __promisify__<A extends PipelineSource<any>, B extends PipelineDestination<A, any>>(source: A, destination: B, options?: PipelineOptions): PipelinePromise<B>;
            function __promisify__<A extends PipelineSource<any>, T1 extends PipelineTransform<A, any>, B extends PipelineDestination<T1, any>>(
                source: A,
                transform1: T1,
                destination: B,
                options?: PipelineOptions
            ): PipelinePromise<B>;
            function __promisify__<A extends PipelineSource<any>, T1 extends PipelineTransform<A, any>, T2 extends PipelineTransform<T1, any>, B extends PipelineDestination<T2, any>>(
                source: A,
                transform1: T1,
                transform2: T2,
                destination: B,
                options?: PipelineOptions
            ): PipelinePromise<B>;
            function __promisify__<
                A extends PipelineSource<any>,
                T1 extends PipelineTransform<A, any>,
                T2 extends PipelineTransform<T1, any>,
                T3 extends PipelineTransform<T2, any>,
                B extends PipelineDestination<T3, any>
            >(source: A, transform1: T1, transform2: T2, transform3: T3, destination: B, options?: PipelineOptions): PipelinePromise<B>;
            function __promisify__<
                A extends PipelineSource<any>,
                T1 extends PipelineTransform<A, any>,
                T2 extends PipelineTransform<T1, any>,
                T3 extends PipelineTransform<T2, any>,
                T4 extends PipelineTransform<T3, any>,
                B extends PipelineDestination<T4, any>
            >(source: A, transform1: T1, transform2: T2, transform3: T3, transform4: T4, destination: B, options?: PipelineOptions): PipelinePromise<B>;
            function __promisify__(streams: ReadonlyArray<NodeJS.ReadableStream | NodeJS.WritableStream | NodeJS.ReadWriteStream>, options?: PipelineOptions): Promise<void>;
            function __promisify__(
                stream1: NodeJS.ReadableStream,
                stream2: NodeJS.ReadWriteStream | NodeJS.WritableStream,
                ...streams: Array<NodeJS.ReadWriteStream | NodeJS.WritableStream | PipelineOptions>
            ): Promise<void>;
        }
        interface Pipe {
            close(): void;
            hasRef(): boolean;
            ref(): void;
            unref(): void;
        }
        const promises: typeof streamPromises;
        const consumers: typeof streamConsumers;
    }
    export = internal;
}
declare module 'node:stream' {
    import stream = require('stream');
    export = stream;
}