@dynatrace/runtime-simulator/types/runtime/runtime.d.ts

The Dynatrace JavaScript runtime simulator.

/// <reference no-default-lib="true" />
/// <reference lib="esnext" />

declare interface Console {
  assert(condition?: boolean, ...data: any[]): void;
  clear(): void;
  count(label?: string): void;
  countReset(label?: string): void;
  debug(...data: any[]): void;
  dir(item?: any, options?: any): void;
  dirxml(...data: any[]): void;
  error(...data: any[]): void;
  group(...data: any[]): void;
  groupCollapsed(...data: any[]): void;
  groupEnd(): void;
  info(...data: any[]): void;
  log(...data: any[]): void;
  table(tabularData?: any, properties?: string[]): void;
  time(label?: string): void;
  timeEnd(label?: string): void;
  timeLog(label?: string, ...data: any[]): void;
  trace(...data: any[]): void;
  warn(...data: any[]): void;
}

declare class URLSearchParams {
  constructor(
    init?: string[][] | Record<string, string> | string | URLSearchParams,
  );
  static toString(): string;

  /** Appends a specified key/value pair as a new search parameter.
   *
   * ```ts
   * let searchParams = new URLSearchParams();
   * searchParams.append('name', 'first');
   * searchParams.append('name', 'second');
   * ```
   */
  append(name: string, value: string): void;

  /** Deletes the given search parameter and its associated value,
   * from the list of all search parameters.
   *
   * ```ts
   * let searchParams = new URLSearchParams([['name', 'value']]);
   * searchParams.delete('name');
   * ```
   */
  delete(name: string): void;

  /** Returns all the values associated with a given search parameter
   * as an array.
   *
   * ```ts
   * searchParams.getAll('name');
   * ```
   */
  getAll(name: string): string[];

  /** Returns the first value associated to the given search parameter.
   *
   * ```ts
   * searchParams.get('name');
   * ```
   */
  get(name: string): string | null;

  /** Returns a Boolean that indicates whether a parameter with the
   * specified name exists.
   *
   * ```ts
   * searchParams.has('name');
   * ```
   */
  has(name: string): boolean;

  /** Sets the value associated with a given search parameter to the
   * given value. If there were several matching values, this method
   * deletes the others. If the search parameter doesn't exist, this
   * method creates it.
   *
   * ```ts
   * searchParams.set('name', 'value');
   * ```
   */
  set(name: string, value: string): void;
  /**
   * The total number of parameter entries.
   * @since v19.8.0
   */
  readonly size: number;
  /** Sort all key/value pairs contained in this object in place and
   * return undefined. The sort order is according to Unicode code
   * points of the keys.
   *
   * ```ts
   * searchParams.sort();
   * ```
   */
  sort(): void;

  /** Calls a function for each element contained in this object in
   * place and return undefined. Optionally accepts an object to use
   * as this when executing callback as second argument.
   *
   * ```ts
   * const params = new URLSearchParams([["a", "b"], ["c", "d"]]);
   * params.forEach((value, key, parent) => {
   *   console.log(value, key, parent);
   * });
   * ```
   */
  forEach(
    callbackfn: (value: string, key: string, parent: this) => void,
    thisArg?: any,
  ): void;

  /** Returns an iterator allowing to go through all keys contained
   * in this object.
   *
   * ```ts
   * const params = new URLSearchParams([["a", "b"], ["c", "d"]]);
   * for (const key of params.keys()) {
   *   console.log(key);
   * }
   * ```
   */
  keys(): IterableIterator<string>;

  /** Returns an iterator allowing to go through all values contained
   * in this object.
   *
   * ```ts
   * const params = new URLSearchParams([["a", "b"], ["c", "d"]]);
   * for (const value of params.values()) {
   *   console.log(value);
   * }
   * ```
   */
  values(): IterableIterator<string>;

  /** Returns an iterator allowing to go through all key/value
   * pairs contained in this object.
   *
   * ```ts
   * const params = new URLSearchParams([["a", "b"], ["c", "d"]]);
   * for (const [key, value] of params.entries()) {
   *   console.log(key, value);
   * }
   * ```
   */
  entries(): IterableIterator<[string, string]>;

  /** Returns an iterator allowing to go through all key/value
   * pairs contained in this object.
   *
   * ```ts
   * const params = new URLSearchParams([["a", "b"], ["c", "d"]]);
   * for (const [key, value] of params) {
   *   console.log(key, value);
   * }
   * ```
   */
  [Symbol.iterator](): IterableIterator<[string, string]>;

  /** Returns a query string suitable for use in a URL.
   *
   * ```ts
   * searchParams.toString();
   * ```
   */
  toString(): string;
}

/** The URL interface represents an object providing static methods used for creating object URLs. */
declare class URL {
  constructor(url: string, base?: string | URL);
  static createObjectURL(blob: Blob): string;
  static revokeObjectURL(url: string): void;

  hash: string;
  host: string;
  hostname: string;
  href: string;
  toString(): string;
  readonly origin: string;
  password: string;
  pathname: string;
  port: string;
  protocol: string;
  search: string;
  readonly searchParams: URLSearchParams;
  username: string;
  toJSON(): string;
}

// declare interface URLPatternInit {
//   protocol?: string;
//   username?: string;
//   password?: string;
//   hostname?: string;
//   port?: string;
//   pathname?: string;
//   search?: string;
//   hash?: string;
//   baseURL?: string;
// }

// declare type URLPatternInput = string | URLPatternInit;

// declare interface URLPatternComponentResult {
//   input: string;
//   groups: Record<string, string>;
// }

// /** `URLPatternResult` is the object returned from `URLPattern.exec`. */
// declare interface URLPatternResult {
//   /** The inputs provided when matching. */
//   inputs: [URLPatternInit] | [URLPatternInit, string];

//   /** The matched result for the `protocol` matcher. */
//   protocol: URLPatternComponentResult;
//   /** The matched result for the `username` matcher. */
//   username: URLPatternComponentResult;
//   /** The matched result for the `password` matcher. */
//   password: URLPatternComponentResult;
//   /** The matched result for the `hostname` matcher. */
//   hostname: URLPatternComponentResult;
//   /** The matched result for the `port` matcher. */
//   port: URLPatternComponentResult;
//   /** The matched result for the `pathname` matcher. */
//   pathname: URLPatternComponentResult;
//   /** The matched result for the `search` matcher. */
//   search: URLPatternComponentResult;
//   /** The matched result for the `hash` matcher. */
//   hash: URLPatternComponentResult;
// }

// /**
//  * The URLPattern API provides a web platform primitive for matching URLs based
//  * on a convenient pattern syntax.
//  *
//  * The syntax is based on path-to-regexp. Wildcards, named capture groups,
//  * regular groups, and group modifiers are all supported.
//  *
//  * ```ts
//  * // Specify the pattern as structured data.
//  * const pattern = new URLPattern({ pathname: "/users/:user" });
//  * const match = pattern.exec("/users/joe");
//  * console.log(match.pathname.groups.user); // joe
//  * ```
//  *
//  * ```ts
//  * // Specify a fully qualified string pattern.
//  * const pattern = new URLPattern("https://example.com/books/:id");
//  * console.log(pattern.test("https://example.com/books/123")); // true
//  * console.log(pattern.test("https://deno.land/books/123")); // false
//  * ```
//  *
//  * ```ts
//  * // Specify a relative string pattern with a base URL.
//  * const pattern = new URLPattern("/:article", "https://blog.example.com");
//  * console.log(pattern.test("https://blog.example.com/article")); // true
//  * console.log(pattern.test("https://blog.example.com/article/123")); // false
//  * ```
//  */
// declare class URLPattern {
//   constructor(input: URLPatternInput, baseURL?: string);

//   /**
//    * Test if the given input matches the stored pattern.
//    *
//    * The input can either be provided as a url string (with an optional base),
//    * or as individual components in the form of an object.
//    *
//    * ```ts
//    * const pattern = new URLPattern("https://example.com/books/:id");
//    *
//    * // Test a url string.
//    * console.log(pattern.test("https://example.com/books/123")); // true
//    *
//    * // Test a relative url with a base.
//    * console.log(pattern.test("/books/123", "https://example.com")); // true
//    *
//    * // Test an object of url components.
//    * console.log(pattern.test({ pathname: "/books/123" })); // true
//    * ```
//    */
//   test(input: URLPatternInput, baseURL?: string): boolean;

//   /**
//    * Match the given input against the stored pattern.
//    *
//    * The input can either be provided as a url string (with an optional base),
//    * or as individual components in the form of an object.
//    *
//    * ```ts
//    * const pattern = new URLPattern("https://example.com/books/:id");
//    *
//    * // Match a url string.
//    * let match = pattern.exec("https://example.com/books/123");
//    * console.log(match.pathname.groups.id); // 123
//    *
//    * // Match a relative url with a base.
//    * match = pattern.exec("/books/123", "https://example.com");
//    * console.log(match.pathname.groups.id); // 123
//    *
//    * // Match an object of url components.
//    * match = pattern.exec({ pathname: "/books/123" });
//    * console.log(match.pathname.groups.id); // 123
//    * ```
//    */
//   exec(input: URLPatternInput, baseURL?: string): URLPatternResult | null;

//   /** The pattern string for the `protocol`. */
//   readonly protocol: string;
//   /** The pattern string for the `username`. */
//   readonly username: string;
//   /** The pattern string for the `password`. */
//   readonly password: string;
//   /** The pattern string for the `hostname`. */
//   readonly hostname: string;
//   /** The pattern string for the `port`. */
//   readonly port: string;
//   /** The pattern string for the `pathname`. */
//   readonly pathname: string;
//   /** The pattern string for the `search`. */
//   readonly search: string;
//   /** The pattern string for the `hash`. */
//   readonly hash: string;
// }

declare class DOMException extends Error {
  constructor(message?: string, name?: string);
  readonly name: string;
  readonly message: string;
  readonly code: number;
}

interface EventInit {
  bubbles?: boolean;
  cancelable?: boolean;
  composed?: boolean;
}

/** An event which takes place in the DOM. */
declare class Event {
  constructor(type: string, eventInitDict?: EventInit);
  /** Returns true or false depending on how event was initialized. True if
   * event goes through its target's ancestors in reverse tree order, and
   * false otherwise. */
  readonly bubbles: boolean;
  cancelBubble: boolean;
  /** Returns true or false depending on how event was initialized. Its return
   * value does not always carry meaning, but true can indicate that part of the
   * operation during which event was dispatched, can be canceled by invoking
   * the preventDefault() method. */
  readonly cancelable: boolean;
  /** Returns true or false depending on how event was initialized. True if
   * event invokes listeners past a ShadowRoot node that is the root of its
   * target, and false otherwise. */
  readonly composed: boolean;
  /** Returns the object whose event listener's callback is currently being
   * invoked. */
  readonly currentTarget: EventTarget | null;
  /** Returns true if preventDefault() was invoked successfully to indicate
   * cancellation, and false otherwise. */
  readonly defaultPrevented: boolean;
  /** Returns the event's phase, which is one of NONE, CAPTURING_PHASE,
   * AT_TARGET, and BUBBLING_PHASE. */
  readonly eventPhase: number;
  /** Returns true if event was dispatched by the user agent, and false
   * otherwise. */
  readonly isTrusted: boolean;
  /** Returns the object to which event is dispatched (its target). */
  readonly target: EventTarget | null;
  /** Returns the event's timestamp as the number of milliseconds measured
   * relative to the time origin. */
  readonly timeStamp: number;
  /** Returns the type of event, e.g. "click", "hashchange", or "submit". */
  readonly type: string;
  /** Returns the invocation target objects of event's path (objects on which
   * listeners will be invoked), except for any nodes in shadow trees of which
   * the shadow root's mode is "closed" that are not reachable from event's
   * currentTarget. */
  composedPath(): EventTarget[];
  /** If invoked when the cancelable attribute value is true, and while
   * executing a listener for the event with passive set to false, signals to
   * the operation that caused event to be dispatched that it needs to be
   * canceled. */
  preventDefault(): void;
  /** Invoking this method prevents event from reaching any registered event
   * listeners after the current one finishes running and, when dispatched in a
   * tree, also prevents event from reaching any other objects. */
  stopImmediatePropagation(): void;
  /** When dispatched in a tree, invoking this method prevents event from
   * reaching any objects other than the current object. */
  stopPropagation(): void;
  readonly AT_TARGET: number;
  readonly BUBBLING_PHASE: number;
  readonly CAPTURING_PHASE: number;
  readonly NONE: number;
  static readonly AT_TARGET: number;
  static readonly BUBBLING_PHASE: number;
  static readonly CAPTURING_PHASE: number;
  static readonly NONE: number;
}

/**
 * EventTarget is a DOM interface implemented by objects that can receive events
 * and may have listeners for them.
 */
declare class EventTarget {
  /** Appends an event listener for events whose type attribute value is type.
   * The callback argument sets the callback that will be invoked when the event
   * is dispatched.
   *
   * The options argument sets listener-specific options. For compatibility this
   * can be a boolean, in which case the method behaves exactly as if the value
   * was specified as options's capture.
   *
   * When set to true, options's capture prevents callback from being invoked
   * when the event's eventPhase attribute value is BUBBLING_PHASE. When false
   * (or not present), callback will not be invoked when event's eventPhase
   * attribute value is CAPTURING_PHASE. Either way, callback will be invoked if
   * event's eventPhase attribute value is AT_TARGET.
   *
   * When set to true, options's passive indicates that the callback will not
   * cancel the event by invoking preventDefault(). This is used to enable
   * performance optimizations described in § 2.8 Observing event listeners.
   *
   * When set to true, options's once indicates that the callback will only be
   * invoked once after which the event listener will be removed.
   *
   * The event listener is appended to target's event listener list and is not
   * appended if it has the same type, callback, and capture. */
  addEventListener(
    type: string,
    listener: EventListenerOrEventListenerObject | null,
    options?: boolean | AddEventListenerOptions,
  ): void;
  /** Dispatches a synthetic event event to target and returns true if either
   * event's cancelable attribute value is false or its preventDefault() method
   * was not invoked, and false otherwise. */
  dispatchEvent(event: Event): boolean;
  /** Removes the event listener in target's event listener list with the same
   * type, callback, and options. */
  removeEventListener(
    type: string,
    callback: EventListenerOrEventListenerObject | null,
    options?: EventListenerOptions | boolean,
  ): void;
}

interface EventListener {
  (evt: Event): void | Promise<void>;
}

interface EventListenerObject {
  handleEvent(evt: Event): void | Promise<void>;
}

declare type EventListenerOrEventListenerObject =
  | EventListener
  | EventListenerObject;

interface AddEventListenerOptions extends EventListenerOptions {
  once?: boolean;
  passive?: boolean;
}

interface EventListenerOptions {
  capture?: boolean;
}

interface ProgressEventInit extends EventInit {
  lengthComputable?: boolean;
  loaded?: number;
  total?: number;
}

/** Events measuring progress of an underlying process, like an HTTP request
 * (for an XMLHttpRequest, or the loading of the underlying resource of an
 * <img>, <audio>, <video>, <style> or <link>). */
declare class ProgressEvent<T extends EventTarget = EventTarget> extends Event {
  constructor(type: string, eventInitDict?: ProgressEventInit);
  readonly lengthComputable: boolean;
  readonly loaded: number;
  readonly target: T | null;
  readonly total: number;
}

/** Decodes a string of data which has been encoded using base-64 encoding.
 *
 *     console.log(atob("aGVsbG8gd29ybGQ=")); // outputs 'hello world'
 */
declare function atob(s: string): string;

/** Creates a base-64 ASCII encoded string from the input string.
 *
 *     console.log(btoa("hello world"));  // outputs "aGVsbG8gd29ybGQ="
 */
declare function btoa(s: string): string;

declare interface TextDecoderOptions {
  fatal?: boolean;
  ignoreBOM?: boolean;
}

declare interface TextDecodeOptions {
  stream?: boolean;
}

interface TextDecoder {
  /** Returns encoding's name, lowercased. */
  readonly encoding: string;
  /** Returns `true` if error mode is "fatal", and `false` otherwise. */
  readonly fatal: boolean;
  /** Returns `true` if ignore BOM flag is set, and `false` otherwise. */
  readonly ignoreBOM: boolean;

  /** Returns the result of running encoding's decoder. */
  decode(input?: BufferSource, options?: TextDecodeOptions): string;
}

declare var TextDecoder: {
  prototype: TextDecoder;
  new (label?: string, options?: TextDecoderOptions): TextDecoder;
};

declare interface TextEncoderEncodeIntoResult {
  read: number;
  written: number;
}

interface TextEncoder {
  /** Returns "utf-8". */
  readonly encoding: 'utf-8';
  /** Returns the result of running UTF-8's encoder. */
  encode(input?: string): Uint8Array;
  encodeInto(input: string, dest: Uint8Array): TextEncoderEncodeIntoResult;
}

declare var TextEncoder: {
  prototype: TextEncoder;
  new (): TextEncoder;
};

interface TextDecoderStream {
  /** Returns encoding's name, lowercased. */
  readonly encoding: string;
  /** Returns `true` if error mode is "fatal", and `false` otherwise. */
  readonly fatal: boolean;
  /** Returns `true` if ignore BOM flag is set, and `false` otherwise. */
  readonly ignoreBOM: boolean;
  readonly readable: ReadableStream<string>;
  readonly writable: WritableStream<BufferSource>;
  readonly [Symbol.toStringTag]: string;
}

declare var TextDecoderStream: {
  prototype: TextDecoderStream;
  new (label?: string, options?: TextDecoderOptions): TextDecoderStream;
};

interface TextEncoderStream {
  /** Returns "utf-8". */
  readonly encoding: 'utf-8';
  readonly readable: ReadableStream<Uint8Array>;
  readonly writable: WritableStream<string>;
  readonly [Symbol.toStringTag]: string;
}

declare var TextEncoderStream: {
  prototype: TextEncoderStream;
  new (): TextEncoderStream;
};

/** A controller object that allows you to abort one or more DOM requests as and
 * when desired. */
declare class AbortController {
  /** Returns the AbortSignal object associated with this object. */
  readonly signal: AbortSignal;
  /** Invoking this method will set this object's AbortSignal's aborted flag and
   * signal to any observers that the associated activity is to be aborted. */
  abort(reason?: any): void;
}

interface AbortSignalEventMap {
  abort: Event;
}

/** A signal object that allows you to communicate with a DOM request (such as a
 * Fetch) and abort it if required via an AbortController object. */
interface AbortSignal extends EventTarget {
  /** Returns true if this AbortSignal's AbortController has signaled to abort,
   * and false otherwise. */
  readonly aborted: boolean;
  readonly reason?: unknown;
  onabort: ((this: AbortSignal, ev: Event) => any) | null;
  addEventListener<K extends keyof AbortSignalEventMap>(
    type: K,
    listener: (this: AbortSignal, ev: AbortSignalEventMap[K]) => any,
    options?: boolean | AddEventListenerOptions,
  ): void;
  addEventListener(
    type: string,
    listener: EventListenerOrEventListenerObject,
    options?: boolean | AddEventListenerOptions,
  ): void;
  removeEventListener<K extends keyof AbortSignalEventMap>(
    type: K,
    listener: (this: AbortSignal, ev: AbortSignalEventMap[K]) => any,
    options?: boolean | EventListenerOptions,
  ): void;
  removeEventListener(
    type: string,
    listener: EventListenerOrEventListenerObject,
    options?: boolean | EventListenerOptions,
  ): void;

  /** Throws this AbortSignal's abort reason, if its AbortController has
   * signaled to abort; otherwise, does nothing. */
  throwIfAborted(): void;
}

declare var AbortSignal: {
  prototype: AbortSignal;
  new (): AbortSignal;
  abort(reason?: any): AbortSignal;
};

// interface FileReaderEventMap {
//   abort: ProgressEvent<FileReader>;
//   error: ProgressEvent<FileReader>;
//   load: ProgressEvent<FileReader>;
//   loadend: ProgressEvent<FileReader>;
//   loadstart: ProgressEvent<FileReader>;
//   progress: ProgressEvent<FileReader>;
// }

// /** Lets web applications asynchronously read the contents of files (or raw data buffers) stored on the user's computer, using File or Blob objects to specify the file or data to read. */
// interface FileReader extends EventTarget {
//   readonly error: DOMException | null;
//   onabort: ((this: FileReader, ev: ProgressEvent<FileReader>) => any) | null;
//   onerror: ((this: FileReader, ev: ProgressEvent<FileReader>) => any) | null;
//   onload: ((this: FileReader, ev: ProgressEvent<FileReader>) => any) | null;
//   onloadend: ((this: FileReader, ev: ProgressEvent<FileReader>) => any) | null;
//   onloadstart:
//     | ((this: FileReader, ev: ProgressEvent<FileReader>) => any)
//     | null;
//   onprogress: ((this: FileReader, ev: ProgressEvent<FileReader>) => any) | null;
//   readonly readyState: number;
//   readonly result: string | ArrayBuffer | null;
//   abort(): void;
//   readAsArrayBuffer(blob: Blob): void;
//   readAsBinaryString(blob: Blob): void;
//   readAsDataURL(blob: Blob): void;
//   readAsText(blob: Blob, encoding?: string): void;
//   readonly DONE: number;
//   readonly EMPTY: number;
//   readonly LOADING: number;
//   addEventListener<K extends keyof FileReaderEventMap>(
//     type: K,
//     listener: (this: FileReader, ev: FileReaderEventMap[K]) => any,
//     options?: boolean | AddEventListenerOptions,
//   ): void;
//   addEventListener(
//     type: string,
//     listener: EventListenerOrEventListenerObject,
//     options?: boolean | AddEventListenerOptions,
//   ): void;
//   removeEventListener<K extends keyof FileReaderEventMap>(
//     type: K,
//     listener: (this: FileReader, ev: FileReaderEventMap[K]) => any,
//     options?: boolean | EventListenerOptions,
//   ): void;
//   removeEventListener(
//     type: string,
//     listener: EventListenerOrEventListenerObject,
//     options?: boolean | EventListenerOptions,
//   ): void;
// }

// declare var FileReader: {
//   prototype: FileReader;
//   new (): FileReader;
//   readonly DONE: number;
//   readonly EMPTY: number;
//   readonly LOADING: number;
// };

type BlobPart = BufferSource | Blob | string;

interface BlobPropertyBag {
  type?: string;
  endings?: 'transparent' | 'native';
}

/** A file-like object of immutable, raw data. Blobs represent data that isn't necessarily in a JavaScript-native format. The File interface is based on Blob, inheriting blob functionality and expanding it to support files on the user's system. */
declare class Blob {
  constructor(blobParts?: BlobPart[], options?: BlobPropertyBag);

  readonly size: number;
  readonly type: string;
  arrayBuffer(): Promise<ArrayBuffer>;
  slice(start?: number, end?: number, contentType?: string): Blob;
  stream(): ReadableStream<Uint8Array>;
  text(): Promise<string>;
}

interface FilePropertyBag extends BlobPropertyBag {
  lastModified?: number;
}

/** Provides information about files and allows JavaScript in a web page to
 * access their content. */
declare class File extends Blob {
  constructor(
    fileBits: BlobPart[],
    fileName: string,
    options?: FilePropertyBag,
  );

  readonly lastModified: number;
  readonly name: string;
}

interface ReadableStreamReadDoneResult<T> {
  done: true;
  value?: T;
}

interface ReadableStreamReadValueResult<T> {
  done: false;
  value: T;
}

type ReadableStreamReadResult<T> =
  | ReadableStreamReadValueResult<T>
  | ReadableStreamReadDoneResult<T>;

interface ReadableStreamDefaultReader<R = any> {
  readonly closed: Promise<void>;
  cancel(reason?: any): Promise<void>;
  read(): Promise<ReadableStreamReadResult<R>>;
  releaseLock(): void;
}

interface ReadableStreamBYOBReadDoneResult<V extends ArrayBufferView> {
  done: true;
  value?: V;
}

interface ReadableStreamBYOBReadValueResult<V extends ArrayBufferView> {
  done: false;
  value: V;
}

type ReadableStreamBYOBReadResult<V extends ArrayBufferView> =
  | ReadableStreamBYOBReadDoneResult<V>
  | ReadableStreamBYOBReadValueResult<V>;

interface ReadableStreamBYOBReader {
  readonly closed: Promise<void>;
  cancel(reason?: any): Promise<void>;
  read<V extends ArrayBufferView>(
    view: V,
  ): Promise<ReadableStreamBYOBReadResult<V>>;
  releaseLock(): void;
}

interface ReadableStreamBYOBRequest {
  readonly view: ArrayBufferView | null;
  respond(bytesWritten: number): void;
  respondWithNewView(view: ArrayBufferView): void;
}

declare var ReadableStreamDefaultReader: {
  prototype: ReadableStreamDefaultReader;
  new <R>(stream: ReadableStream<R>): ReadableStreamDefaultReader<R>;
};

interface ReadableStreamReader<R = any> {
  cancel(): Promise<void>;
  read(): Promise<ReadableStreamReadResult<R>>;
  releaseLock(): void;
}

declare var ReadableStreamReader: {
  prototype: ReadableStreamReader;
  new (): ReadableStreamReader;
};

interface ReadableByteStreamControllerCallback {
  (controller: ReadableByteStreamController): void | PromiseLike<void>;
}

interface UnderlyingByteSource {
  autoAllocateChunkSize?: number;
  cancel?: ReadableStreamErrorCallback;
  pull?: ReadableByteStreamControllerCallback;
  start?: ReadableByteStreamControllerCallback;
  type: 'bytes';
}

interface UnderlyingSink<W = any> {
  abort?: WritableStreamErrorCallback;
  close?: WritableStreamDefaultControllerCloseCallback;
  start?: WritableStreamDefaultControllerStartCallback;
  type?: undefined;
  write?: WritableStreamDefaultControllerWriteCallback<W>;
}

interface UnderlyingSource<R = any> {
  cancel?: ReadableStreamErrorCallback;
  pull?: ReadableStreamDefaultControllerCallback<R>;
  start?: ReadableStreamDefaultControllerCallback<R>;
  type?: undefined;
}

interface ReadableStreamErrorCallback {
  (reason: any): void | PromiseLike<void>;
}

interface ReadableStreamDefaultControllerCallback<R> {
  (controller: ReadableStreamDefaultController<R>): void | PromiseLike<void>;
}

interface ReadableStreamDefaultController<R = any> {
  readonly desiredSize: number | null;
  close(): void;
  enqueue(chunk: R): void;
  error(error?: any): void;
}

declare var ReadableStreamDefaultController: {
  prototype: ReadableStreamDefaultController;
  new (): ReadableStreamDefaultController;
};

interface ReadableByteStreamController {
  readonly byobRequest: ReadableStreamBYOBRequest | null;
  readonly desiredSize: number | null;
  close(): void;
  enqueue(chunk: ArrayBufferView): void;
  error(error?: any): void;
}

declare var ReadableByteStreamController: {
  prototype: ReadableByteStreamController;
  new (): ReadableByteStreamController;
};

interface PipeOptions {
  preventAbort?: boolean;
  preventCancel?: boolean;
  preventClose?: boolean;
  signal?: AbortSignal;
}

interface QueuingStrategySizeCallback<T = any> {
  (chunk: T): number;
}

interface QueuingStrategy<T = any> {
  highWaterMark?: number;
  size?: QueuingStrategySizeCallback<T>;
}

/** This Streams API interface provides a built-in byte length queuing strategy
 * that can be used when constructing streams. */
interface CountQueuingStrategy extends QueuingStrategy {
  highWaterMark: number;
  size(chunk: any): 1;
}

declare var CountQueuingStrategy: {
  prototype: CountQueuingStrategy;
  new (options: { highWaterMark: number }): CountQueuingStrategy;
};

interface ByteLengthQueuingStrategy extends QueuingStrategy<ArrayBufferView> {
  highWaterMark: number;
  size(chunk: ArrayBufferView): number;
}

declare var ByteLengthQueuingStrategy: {
  prototype: ByteLengthQueuingStrategy;
  new (options: { highWaterMark: number }): ByteLengthQueuingStrategy;
};

/** This Streams API interface represents a readable stream of byte data. The
 * Fetch API offers a concrete instance of a ReadableStream through the body
 * property of a Response object. */
interface ReadableStream<R = any> {
  readonly locked: boolean;
  cancel(reason?: any): Promise<void>;
  getReader(options: { mode: 'byob' }): ReadableStreamBYOBReader;
  getReader(options?: { mode?: undefined }): ReadableStreamDefaultReader<R>;
  pipeThrough<T>(
    {
      writable,
      readable,
    }: {
      writable: WritableStream<R>;
      readable: ReadableStream<T>;
    },
    options?: PipeOptions,
  ): ReadableStream<T>;
  pipeTo(dest: WritableStream<R>, options?: PipeOptions): Promise<void>;
  tee(): [ReadableStream<R>, ReadableStream<R>];
  [Symbol.asyncIterator](options?: {
    preventCancel?: boolean;
  }): AsyncIterableIterator<R>;
}

declare var ReadableStream: {
  prototype: ReadableStream;
  new (
    underlyingSource: UnderlyingByteSource,
    strategy?: { highWaterMark?: number; size?: undefined },
  ): ReadableStream<Uint8Array>;
  new <R = any>(
    underlyingSource?: UnderlyingSource<R>,
    strategy?: QueuingStrategy<R>,
  ): ReadableStream<R>;
};

interface WritableStreamDefaultControllerCloseCallback {
  (): void | PromiseLike<void>;
}

interface WritableStreamDefaultControllerStartCallback {
  (controller: WritableStreamDefaultController): void | PromiseLike<void>;
}

interface WritableStreamDefaultControllerWriteCallback<W> {
  (
    chunk: W,
    controller: WritableStreamDefaultController,
  ): void | PromiseLike<void>;
}

interface WritableStreamErrorCallback {
  (reason: any): void | PromiseLike<void>;
}

/** This Streams API interface provides a standard abstraction for writing
 * streaming data to a destination, known as a sink. This object comes with
 * built-in backpressure and queuing. */
interface WritableStream<W = any> {
  readonly locked: boolean;
  abort(reason?: any): Promise<void>;
  getWriter(): WritableStreamDefaultWriter<W>;
}

declare var WritableStream: {
  prototype: WritableStream;
  new <W = any>(
    underlyingSink?: UnderlyingSink<W>,
    strategy?: QueuingStrategy<W>,
  ): WritableStream<W>;
};

/** This Streams API interface represents a controller allowing control of a
 * WritableStream's state. When constructing a WritableStream, the underlying
 * sink is given a corresponding WritableStreamDefaultController instance to
 * manipulate. */
interface WritableStreamDefaultController {
  signal: AbortSignal;
  error(error?: any): void;
}

declare var WritableStreamDefaultController: WritableStreamDefaultController;

/** This Streams API interface is the object returned by
 * WritableStream.getWriter() and once created locks the < writer to the
 * WritableStream ensuring that no other streams can write to the underlying
 * sink. */
interface WritableStreamDefaultWriter<W = any> {
  readonly closed: Promise<void>;
  readonly desiredSize: number | null;
  readonly ready: Promise<void>;
  abort(reason?: any): Promise<void>;
  close(): Promise<void>;
  releaseLock(): void;
  write(chunk: W): Promise<void>;
}

declare var WritableStreamDefaultWriter: {
  prototype: WritableStreamDefaultWriter;
  new (): WritableStreamDefaultWriter;
};

interface TransformStream<I = any, O = any> {
  readonly readable: ReadableStream<O>;
  readonly writable: WritableStream<I>;
}

declare var TransformStream: {
  prototype: TransformStream;
  new <I = any, O = any>(
    transformer?: Transformer<I, O>,
    writableStrategy?: QueuingStrategy<I>,
    readableStrategy?: QueuingStrategy<O>,
  ): TransformStream<I, O>;
};

interface TransformStreamDefaultController<O = any> {
  readonly desiredSize: number | null;
  enqueue(chunk: O): void;
  error(reason?: any): void;
  terminate(): void;
}

declare var TransformStreamDefaultController: TransformStreamDefaultController;

interface Transformer<I = any, O = any> {
  flush?: TransformStreamDefaultControllerCallback<O>;
  readableType?: undefined;
  start?: TransformStreamDefaultControllerCallback<O>;
  transform?: TransformStreamDefaultControllerTransformCallback<I, O>;
  writableType?: undefined;
}

interface TransformStreamDefaultControllerCallback<O> {
  (controller: TransformStreamDefaultController<O>): void | PromiseLike<void>;
}

interface TransformStreamDefaultControllerTransformCallback<I, O> {
  (
    chunk: I,
    controller: TransformStreamDefaultController<O>,
  ): void | PromiseLike<void>;
}

interface MessageEventInit<T = any> extends EventInit {
  data?: T;
  origin?: string;
  lastEventId?: string;
}

declare class MessageEvent<T = any> extends Event {
  /**
   * Returns the data of the message.
   */
  readonly data: T;
  /**
   * Returns the last event ID string, for server-sent events.
   */
  readonly lastEventId: string;
  /**
   * Returns transferred ports.
   */
  readonly ports: ReadonlyArray<MessagePort>;
  constructor(type: string, eventInitDict?: MessageEventInit);
}

type Transferable = ArrayBuffer | MessagePort;

/**
 * @deprecated
 *
 * This type has been renamed to StructuredSerializeOptions. Use that type for
 * new code.
 */
type PostMessageOptions = StructuredSerializeOptions;

interface StructuredSerializeOptions {
  transfer?: Transferable[];
}

/** The MessageChannel interface of the Channel Messaging API allows us to
 * create a new message channel and send data through it via its two MessagePort
 * properties. */
declare class MessageChannel {
  constructor();
  readonly port1: MessagePort;
  readonly port2: MessagePort;
}

interface MessagePortEventMap {
  message: MessageEvent;
  messageerror: MessageEvent;
}

/** The MessagePort interface of the Channel Messaging API represents one of the
 * two ports of a MessageChannel, allowing messages to be sent from one port and
 * listening out for them arriving at the other. */
declare class MessagePort extends EventTarget {
  onmessage: ((this: MessagePort, ev: MessageEvent) => any) | null;
  onmessageerror: ((this: MessagePort, ev: MessageEvent) => any) | null;
  /**
   * Disconnects the port, so that it is no longer active.
   */
  close(): void;
  /**
   * Posts a message through the channel. Objects listed in transfer are
   * transferred, not just cloned, meaning that they are no longer usable on the
   * sending side.
   *
   * Throws a "DataCloneError" DOMException if transfer contains duplicate
   * objects or port, or if message could not be cloned.
   */
  postMessage(message: any, transfer: Transferable[]): void;
  postMessage(message: any, options?: StructuredSerializeOptions): void;
  /**
   * Begins dispatching messages received on the port. This is implicitly called
   * when assigning a value to `this.onmessage`.
   */
  start(): void;
  addEventListener<K extends keyof MessagePortEventMap>(
    type: K,
    listener: (this: MessagePort, ev: MessagePortEventMap[K]) => any,
    options?: boolean | AddEventListenerOptions,
  ): void;
  addEventListener(
    type: string,
    listener: EventListenerOrEventListenerObject,
    options?: boolean | AddEventListenerOptions,
  ): void;
  removeEventListener<K extends keyof MessagePortEventMap>(
    type: K,
    listener: (this: MessagePort, ev: MessagePortEventMap[K]) => any,
    options?: boolean | EventListenerOptions,
  ): void;
  removeEventListener(
    type: string,
    listener: EventListenerOrEventListenerObject,
    options?: boolean | EventListenerOptions,
  ): void;
}

declare function structuredClone(
  value: any,
  options?: StructuredSerializeOptions,
): any;

// declare class CompressionStream {
//   constructor(format: string);

//   readonly readable: ReadableStream<Uint8Array>;
//   readonly writable: WritableStream<Uint8Array>;
// }

// declare class DecompressionStream {
//   constructor(format: string);

//   readonly readable: ReadableStream<Uint8Array>;
//   readonly writable: WritableStream<Uint8Array>;
// }

interface DomIterable<K, V> {
  keys(): IterableIterator<K>;
  values(): IterableIterator<V>;
  entries(): IterableIterator<[K, V]>;
  [Symbol.iterator](): IterableIterator<[K, V]>;
  forEach(
    callback: (value: V, key: K, parent: this) => void,
    thisArg?: any,
  ): void;
}

type FormDataEntryValue = File | string;

/** Provides a way to easily construct a set of key/value pairs representing
 * form fields and their values, which can then be easily sent using the
 * XMLHttpRequest.send() method. It uses the same format a form would use if the
 * encoding type were set to "multipart/form-data". */
interface FormData {
  append(name: string, value: string | Blob, fileName?: string): void;
  delete(name: string): void;
  get(name: string): FormDataEntryValue | null;
  getAll(name: string): FormDataEntryValue[];
  has(name: string): boolean;
  set(name: string, value: string | Blob, fileName?: string): void;
  keys(): IterableIterator<string>;
  values(): IterableIterator<string>;
  entries(): IterableIterator<[string, FormDataEntryValue]>;
  [Symbol.iterator](): IterableIterator<[string, FormDataEntryValue]>;
  forEach(
    callback: (value: FormDataEntryValue, key: string, parent: this) => void,
    thisArg?: any,
  ): void;
}

declare var FormData: {
  prototype: FormData;
  new (): FormData;
};

interface Body {
  /** A simple getter used to expose a `ReadableStream` of the body contents. */
  readonly body: ReadableStream<Uint8Array> | null;
  /** Stores a `Boolean` that declares whether the body has been used in a
   * response yet.
   */
  readonly bodyUsed: boolean;
  /** Takes a `Response` stream and reads it to completion. It returns a promise
   * that resolves with an `ArrayBuffer`.
   */
  arrayBuffer(): Promise<ArrayBuffer>;
  /** Takes a `Response` stream and reads it to completion. It returns a promise
   * that resolves with a `Blob`.
   */
  blob(): Promise<Blob>;
  /** Takes a `Response` stream and reads it to completion. It returns a promise
   * that resolves with a `FormData` object.
   */
  formData(): Promise<FormData>;
  /** Takes a `Response` stream and reads it to completion. It returns a promise
   * that resolves with the result of parsing the body text as JSON.
   */
  json(): Promise<any>;
  /** Takes a `Response` stream and reads it to completion. It returns a promise
   * that resolves with a `USVString` (text).
   */
  text(): Promise<string>;
}

type HeadersInit = Headers | string[][] | Record<string, string>;

/** This Fetch API interface allows you to perform various actions on HTTP
 * request and response headers. These actions include retrieving, setting,
 * adding to, and removing. A Headers object has an associated header list,
 * which is initially empty and consists of zero or more name and value pairs.
 * You can add to this using methods like append() (see Examples). In all
 * methods of this interface, header names are matched by case-insensitive byte
 * sequence. */
interface Headers {
  append(name: string, value: string): void;
  delete(name: string): void;
  get(name: string): string | null;
  has(name: string): boolean;
  set(name: string, value: string): void;
  forEach(
    callbackfn: (value: string, key: string, parent: Headers) => void,
    thisArg?: any,
  ): void;
}

declare class Headers implements DomIterable<string, string> {
  constructor(init?: HeadersInit);

  /** Appends a new value onto an existing header inside a `Headers` object, or
   * adds the header if it does not already exist.
   */
  append(name: string, value: string): void;
  /** Deletes a header from a `Headers` object. */
  delete(name: string): void;
  /** Returns an iterator allowing to go through all key/value pairs
   * contained in this Headers object. The both the key and value of each pairs
   * are ByteString objects.
   */
  entries(): IterableIterator<[string, string]>;
  /** Returns a `ByteString` sequence of all the values of a header within a
   * `Headers` object with a given name.
   */
  get(name: string): string | null;
  /** Returns a boolean stating whether a `Headers` object contains a certain
   * header.
   */
  has(name: string): boolean;
  /** Returns an iterator allowing to go through all keys contained in
   * this Headers object. The keys are ByteString objects.
   */
  keys(): IterableIterator<string>;
  /** Sets a new value for an existing header inside a Headers object, or adds
   * the header if it does not already exist.
   */
  set(name: string, value: string): void;
  /** Returns an iterator allowing to go through all values contained in
   * this Headers object. The values are ByteString objects.
   */
  values(): IterableIterator<string>;
  forEach(
    callbackfn: (value: string, key: string, parent: this) => void,
    thisArg?: any,
  ): void;
  /** The Symbol.iterator well-known symbol specifies the default
   * iterator for this Headers object
   */
  [Symbol.iterator](): IterableIterator<[string, string]>;
}

type RequestInfo = Request | string;
type RequestCache =
  | 'default'
  | 'force-cache'
  | 'no-cache'
  | 'no-store'
  | 'only-if-cached'
  | 'reload';
type RequestCredentials = 'include' | 'omit' | 'same-origin';
type RequestMode = 'cors' | 'navigate' | 'no-cors' | 'same-origin';
type RequestRedirect = 'error' | 'follow' | 'manual';
type ReferrerPolicy =
  | ''
  | 'no-referrer'
  | 'no-referrer-when-downgrade'
  | 'origin'
  | 'origin-when-cross-origin'
  | 'same-origin'
  | 'strict-origin'
  | 'strict-origin-when-cross-origin'
  | 'unsafe-url';
type BodyInit =
  | Blob
  | BufferSource
  | FormData
  | URLSearchParams
  | ReadableStream<Uint8Array>
  | string;
type RequestDestination =
  | ''
  | 'audio'
  | 'audioworklet'
  | 'document'
  | 'embed'
  | 'font'
  | 'image'
  | 'manifest'
  | 'object'
  | 'paintworklet'
  | 'report'
  | 'script'
  | 'sharedworker'
  | 'style'
  | 'track'
  | 'video'
  | 'worker'
  | 'xslt';

interface RequestInit {
  /**
   * A BodyInit object or null to set request's body.
   */
  body?: BodyInit | null;
  /**
   * A string indicating how the request will interact with the browser's cache
   * to set request's cache.
   */
  cache?: RequestCache;
  /**
   * A string indicating whether credentials will be sent with the request
   * always, never, or only when sent to a same-origin URL. Sets request's
   * credentials.
   */
  credentials?: RequestCredentials;
  /**
   * A Headers object, an object literal, or an array of two-item arrays to set
   * request's headers.
   */
  headers?: HeadersInit;
  /**
   * A cryptographic hash of the resource to be fetched by request. Sets
   * request's integrity.
   */
  integrity?: string;
  /**
   * A boolean to set request's keepalive.
   */
  keepalive?: boolean;
  /**
   * A string to set request's method.
   */
  method?: string;
  /**
   * A string to indicate whether the request will use CORS, or will be
   * restricted to same-origin URLs. Sets request's mode.
   */
  mode?: RequestMode;
  /**
   * A string indicating whether request follows redirects, results in an error
   * upon encountering a redirect, or returns the redirect (in an opaque
   * fashion). Sets request's redirect.
   */
  redirect?: RequestRedirect;
  /**
   * A string whose value is a same-origin URL, "about:client", or the empty
   * string, to set request's referrer.
   */
  referrer?: string;
  /**
   * A referrer policy to set request's referrerPolicy.
   */
  referrerPolicy?: ReferrerPolicy;
  /**
   * An AbortSignal to set request's signal.
   */
  signal?: AbortSignal | null;
  /**
   * Can only be null. Used to disassociate request from any Window.
   */
  window?: any;
}

/** This Fetch API interface represents a resource request. */
declare class Request implements Body {
  constructor(input: RequestInfo, init?: RequestInit);

  /**
   * Returns the cache mode associated with request, which is a string
   * indicating how the request will interact with the browser's cache when
   * fetching.
   */
  readonly cache: RequestCache;
  /**
   * Returns the credentials mode associated with request, which is a string
   * indicating whether credentials will be sent with the request always, never,
   * or only when sent to a same-origin URL.
   */
  readonly credentials: RequestCredentials;
  /**
   * Returns the kind of resource requested by request, e.g., "document" or "script".
   */
  readonly destination: RequestDestination;
  /**
   * Returns a Headers object consisting of the headers associated with request.
   * Note that headers added in the network layer by the user agent will not be
   * accounted for in this object, e.g., the "Host" header.
   */
  readonly headers: Headers;
  /**
   * Returns request's sub-resource integrity metadata, which is a cryptographic
   * hash of the resource being fetched. Its value consists of multiple hashes
   * separated by whitespace. [SRI]
   */
  readonly integrity: string;
  /**
   * Returns a boolean indicating whether or not request is for a history
   * navigation (a.k.a. back-forward navigation).
   */
  readonly isHistoryNavigation: boolean;
  /**
   * Returns a boolean indicating whether or not request is for a reload
   * navigation.
   */
  readonly isReloadNavigation: boolean;
  /**
   * Returns a boolean indicating whether or not request can outlive the global
   * in which it was created.
   */
  readonly keepalive: boolean;
  /**
   * Returns request's HTTP method, which is "GET" by default.
   */
  readonly method: string;
  /**
   * Returns the mode associated with request, which is a string indicating
   * whether the request will use CORS, or will be restricted to same-origin
   * URLs.
   */
  readonly mode: RequestMode;
  /**
   * Returns the redirect mode associated with request, which is a string
   * indicating how redirects for the request will be handled during fetching. A
   * request will follow redirects by default.
   */
  readonly redirect: RequestRedirect;
  /**
   * Returns the referrer of request. Its value can be a same-origin URL if
   * explicitly set in init, the empty string to indicate no referrer, and
   * "about:client" when defaulting to the global's default. This is used during
   * fetching to determine the value of the `Referer` header of the request
   * being made.
   */
  readonly referrer: string;
  /**
   * Returns the referrer policy associated with request. This is used during
   * fetching to compute the value of the request's referrer.
   */
  readonly referrerPolicy: ReferrerPolicy;
  /**
   * Returns the signal associated with request, which is an AbortSignal object
   * indicating whether or not request has been aborted, and its abort event
   * handler.
   */
  readonly signal: AbortSignal;
  /**
   * Returns the URL of request as a string.
   */
  readonly url: string;
  clone(): Request;

  /** A simple getter used to expose a `ReadableStream` of the body contents. */
  readonly body: ReadableStream<Uint8Array> | null;
  /** Stores a `Boolean` that declares whether the body has been used in a
   * request yet.
   */
  readonly bodyUsed: boolean;
  /** Takes a `Request` stream and reads it to completion. It returns a promise
   * that resolves with an `ArrayBuffer`.
   */
  arrayBuffer(): Promise<ArrayBuffer>;
  /** Takes a `Request` stream and reads it to completion. It returns a promise
   * that resolves with a `Blob`.
   */
  blob(): Promise<Blob>;
  /** Takes a `Request` stream and reads it to completion. It returns a promise
   * that resolves with a `FormData` object.
   */
  formData(): Promise<FormData>;
  /** Takes a `Request` stream and reads it to completion. It returns a promise
   * that resolves with the result of parsing the body text as JSON.
   */
  json(): Promise<any>;
  /** Takes a `Request` stream and reads it to completion. It returns a promise
   * that resolves with a `USVString` (text).
   */
  text(): Promise<string>;
}

interface ResponseInit {
  headers?: HeadersInit;
  status?: number;
  statusText?: string;
}

type ResponseType =
  | 'basic'
  | 'cors'
  | 'default'
  | 'error'
  | 'opaque'
  | 'opaqueredirect';

/** This Fetch API interface represents the response to a request. */
declare class Response implements Body {
  constructor(body?: BodyInit | null, init?: ResponseInit);
  static error(): Response;
  static redirect(url: string, status?: number): Response;

  readonly headers: Headers;
  readonly ok: boolean;
  readonly redirected: boolean;
  readonly status: number;
  readonly statusText: string;
  readonly trailer: Promise<Headers>;
  readonly type: ResponseType;
  readonly url: string;
  clone(): Response;

  /** A simple getter used to expose a `ReadableStream` of the body contents. */
  readonly body: ReadableStream<Uint8Array> | null;
  /** Stores a `Boolean` that declares whether the body has been used in a
   * response yet.
   */
  readonly bodyUsed: boolean;
  /** Takes a `Response` stream and reads it to completion. It returns a promise
   * that resolves with an `ArrayBuffer`.
   */
  arrayBuffer(): Promise<ArrayBuffer>;
  /** Takes a `Response` stream and reads it to completion. It returns a promise
   * that resolves with a `Blob`.
   */
  blob(): Promise<Blob>;
  /** Takes a `Response` stream and reads it to completion. It returns a promise
   * that resolves with a `FormData` object.
   */
  formData(): Promise<FormData>;
  /** Takes a `Response` stream and reads it to completion. It returns a