From 3204092732f38483f8a45fd500a6531511c602f7 Mon Sep 17 00:00:00 2001
From: Luca Casonato <lucacasonato@yahoo.com>
Date: Fri, 25 Sep 2020 16:21:34 +0200
Subject: [PATCH] refactor: class instead of var+interface in d.ts (#7514)

---
 .dprintrc.json                       |   7 +-
 cli/dts/lib.deno.shared_globals.d.ts | 328 ++++++++++++---------------
 op_crates/fetch/lib.deno_fetch.d.ts  | 189 ++++++++++-----
 3 files changed, 278 insertions(+), 246 deletions(-)

diff --git a/.dprintrc.json b/.dprintrc.json
index 204bbd1f63..4cdfdc6fa4 100644
--- a/.dprintrc.json
+++ b/.dprintrc.json
@@ -13,7 +13,12 @@
   "includes": ["**/*.{ts,tsx,js,jsx,json,md}"],
   "excludes": [
     ".cargo_home",
-    "cli/dts",
+    "cli/dts/lib.d.ts",
+    "cli/dts/lib.dom*",
+    "cli/dts/lib.es*",
+    "cli/dts/lib.scripthost.d.ts",
+    "cli/dts/lib.webworker*.d.ts",
+    "cli/dts/typescript.d.ts",
     "cli/tests/encoding",
     "cli/tsc/*typescript.js",
     "gh-pages",
diff --git a/cli/dts/lib.deno.shared_globals.d.ts b/cli/dts/lib.deno.shared_globals.d.ts
index 0d55b84a20..9f40e2521f 100644
--- a/cli/dts/lib.deno.shared_globals.d.ts
+++ b/cli/dts/lib.deno.shared_globals.d.ts
@@ -8,128 +8,111 @@
 /// <reference lib="deno.fetch" />
 
 declare namespace WebAssembly {
-    interface CompileError {
-    }
+  export class CompileError {
+    constructor();
+  }
 
-    var CompileError: {
-        prototype: CompileError;
-        new(): CompileError;
-    };
+  export class Global {
+    constructor(descriptor: GlobalDescriptor, v?: any);
 
-    interface Global {
-        value: any;
-        valueOf(): any;
-    }
+    value: any;
+    valueOf(): any;
+  }
 
-    var Global: {
-        prototype: Global;
-        new(descriptor: GlobalDescriptor, v?: any): Global;
-    };
+  export class Instance {
+    constructor(module: Module, importObject?: Imports);
+    readonly exports: Exports;
+  }
 
-    interface Instance {
-        readonly exports: Exports;
-    }
+  export class LinkError {
+    constructor();
+  }
 
-    var Instance: {
-        prototype: Instance;
-        new(module: Module, importObject?: Imports): Instance;
-    };
+  export class Memory {
+    constructor(descriptor: MemoryDescriptor);
+    readonly buffer: ArrayBuffer;
+    grow(delta: number): number;
+  }
 
-    interface LinkError {
-    }
+  export class Module {
+    constructor(bytes: BufferSource);
+    static customSections(
+      moduleObject: Module,
+      sectionName: string,
+    ): ArrayBuffer[];
+    static exports(moduleObject: Module): ModuleExportDescriptor[];
+    static imports(moduleObject: Module): ModuleImportDescriptor[];
+  }
 
-    var LinkError: {
-        prototype: LinkError;
-        new(): LinkError;
-    };
+  export class RuntimeError {
+    constructor();
+  }
 
-    interface Memory {
-        readonly buffer: ArrayBuffer;
-        grow(delta: number): number;
-    }
+  export class Table {
+    constructor(descriptor: TableDescriptor);
+    readonly length: number;
+    get(index: number): Function | null;
+    grow(delta: number): number;
+    set(index: number, value: Function | null): void;
+  }
 
-    var Memory: {
-        prototype: Memory;
-        new(descriptor: MemoryDescriptor): Memory;
-    };
+  export interface GlobalDescriptor {
+    mutable?: boolean;
+    value: ValueType;
+  }
 
-    interface Module {
-    }
+  export interface MemoryDescriptor {
+    initial: number;
+    maximum?: number;
+  }
 
-    var Module: {
-        prototype: Module;
-        new(bytes: BufferSource): Module;
-        customSections(moduleObject: Module, sectionName: string): ArrayBuffer[];
-        exports(moduleObject: Module): ModuleExportDescriptor[];
-        imports(moduleObject: Module): ModuleImportDescriptor[];
-    };
+  export interface ModuleExportDescriptor {
+    kind: ImportExportKind;
+    name: string;
+  }
 
-    interface RuntimeError {
-    }
+  export interface ModuleImportDescriptor {
+    kind: ImportExportKind;
+    module: string;
+    name: string;
+  }
 
-    var RuntimeError: {
-        prototype: RuntimeError;
-        new(): RuntimeError;
-    };
+  export interface TableDescriptor {
+    element: TableKind;
+    initial: number;
+    maximum?: number;
+  }
 
-    interface Table {
-        readonly length: number;
-        get(index: number): Function | null;
-        grow(delta: number): number;
-        set(index: number, value: Function | null): void;
-    }
+  export interface WebAssemblyInstantiatedSource {
+    instance: Instance;
+    module: Module;
+  }
 
-    var Table: {
-        prototype: Table;
-        new(descriptor: TableDescriptor): Table;
-    };
-
-    interface GlobalDescriptor {
-        mutable?: boolean;
-        value: ValueType;
-    }
-
-    interface MemoryDescriptor {
-        initial: number;
-        maximum?: number;
-    }
-
-    interface ModuleExportDescriptor {
-        kind: ImportExportKind;
-        name: string;
-    }
-
-    interface ModuleImportDescriptor {
-        kind: ImportExportKind;
-        module: string;
-        name: string;
-    }
-
-    interface TableDescriptor {
-        element: TableKind;
-        initial: number;
-        maximum?: number;
-    }
-
-    interface WebAssemblyInstantiatedSource {
-        instance: Instance;
-        module: Module;
-    }
-
-    type ImportExportKind = "function" | "global" | "memory" | "table";
-    type TableKind = "anyfunc";
-    type ValueType = "f32" | "f64" | "i32" | "i64";
-    type ExportValue = Function | Global | Memory | Table;
-    type Exports = Record<string, ExportValue>;
-    type ImportValue = ExportValue | number;
-    type ModuleImports = Record<string, ImportValue>;
-    type Imports = Record<string, ModuleImports>;
-    function compile(bytes: BufferSource): Promise<Module>;
-    function compileStreaming(source: Response | Promise<Response>): Promise<Module>;
-    function instantiate(bytes: BufferSource, importObject?: Imports): Promise<WebAssemblyInstantiatedSource>;
-    function instantiate(moduleObject: Module, importObject?: Imports): Promise<Instance>;
-    function instantiateStreaming(response: Response | PromiseLike<Response>, importObject?: Imports): Promise<WebAssemblyInstantiatedSource>;
-    function validate(bytes: BufferSource): boolean;
+  export type ImportExportKind = "function" | "global" | "memory" | "table";
+  export type TableKind = "anyfunc";
+  export type ValueType = "f32" | "f64" | "i32" | "i64";
+  export type ExportValue = Function | Global | Memory | Table;
+  export type Exports = Record<string, ExportValue>;
+  export type ImportValue = ExportValue | number;
+  export type ModuleImports = Record<string, ImportValue>;
+  export type Imports = Record<string, ModuleImports>;
+  export function compile(bytes: BufferSource): Promise<Module>;
+  export function compileStreaming(
+    source: Response | Promise<Response>,
+  ): Promise<Module>;
+  export function instantiate(
+    bytes: BufferSource,
+    importObject?: Imports,
+  ): Promise<WebAssemblyInstantiatedSource>;
+  export function instantiate(
+    moduleObject: Module,
+    importObject?: Imports,
+  ): Promise<Instance>;
+  export function instantiateStreaming(
+    response: Response | PromiseLike<Response>,
+    importObject?: Imports,
+  ): Promise<WebAssemblyInstantiatedSource>;
+  export function validate(bytes: BufferSource): boolean;
 }
 
 /** Sets a timer which executes a function once after the timer expires. Returns
@@ -286,35 +269,12 @@ declare interface Crypto {
   ): T;
 }
 
+declare class URLSearchParams {
+  constructor(
+    init?: string[][] | Record<string, string> | string | URLSearchParams,
+  );
+  static toString(): 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. */
-interface Response extends Body {
-  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;
-}
-
-interface URLSearchParams {
   /** Appends a specified key/value pair as a new search parameter.
    *
    * ```ts
@@ -456,16 +416,12 @@ interface URLSearchParams {
   toString(): string;
 }
 
-declare const URLSearchParams: {
-  prototype: URLSearchParams;
-  new (
-    init?: string[][] | Record<string, string> | string | URLSearchParams,
-  ): URLSearchParams;
-  toString(): string;
-};
-
 /** The URL interface represents an object providing static methods used for creating object URLs. */
-interface URL {
+declare class URL {
+  constructor(url: string, base?: string | URL);
+  createObjectURL(object: any): string;
+  revokeObjectURL(url: string): void;
+
   hash: string;
   host: string;
   hostname: string;
@@ -482,13 +438,6 @@ interface URL {
   toJSON(): string;
 }
 
-declare const URL: {
-  prototype: URL;
-  new (url: string, base?: string | URL): URL;
-  createObjectURL(object: any): string;
-  revokeObjectURL(url: string): void;
-};
-
 interface MessageEventInit extends EventInit {
   data?: any;
   origin?: string;
@@ -593,7 +542,9 @@ declare class Worker extends EventTarget {
 
 declare type PerformanceEntryList = PerformanceEntry[];
 
-declare interface Performance {
+declare class Performance {
+  constructor();
+
   /** Removes the stored timestamp with the associated name. */
   clearMarks(markName?: string): void;
 
@@ -633,11 +584,6 @@ declare interface Performance {
   now(): number;
 }
 
-declare const Performance: {
-  prototype: Performance;
-  new (): Performance;
-};
-
 declare const performance: Performance;
 
 declare interface PerformanceMarkOptions {
@@ -697,19 +643,15 @@ declare class PerformanceMeasure extends PerformanceEntry {
 /** 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>). */
-interface ProgressEvent<T extends EventTarget = EventTarget> extends Event {
+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;
 }
 
-declare var ProgressEvent: {
-  prototype: ProgressEvent;
-  new(type:string, eventInitDict?: ProgressEventInit): ProgressEvent;
-};
-
-interface CustomEventInit<T = any> extends EventInit {
+declare interface CustomEventInit<T = any> extends EventInit {
   detail?: T;
 }
 
@@ -734,7 +676,8 @@ interface CloseEventInit extends EventInit {
   wasClean?: boolean;
 }
 
-interface CloseEvent extends Event {
+declare class CloseEvent extends Event {
+  constructor(type: string, eventInitDict?: CloseEventInit);
   /**
    * Returns the WebSocket connection close code provided by the server.
    */
@@ -749,20 +692,22 @@ interface CloseEvent extends Event {
   readonly wasClean: boolean;
 }
 
-declare var CloseEvent: {
-  prototype: CloseEvent;
-  new(type: string, eventInitDict?: CloseEventInit): CloseEvent;
-};
-
 interface WebSocketEventMap {
-  "close": CloseEvent;
-  "error": Event;
-  "message": MessageEvent;
-  "open": Event;
+  close: CloseEvent;
+  error: Event;
+  message: MessageEvent;
+  open: Event;
 }
 
 /** Provides the API for creating and managing a WebSocket connection to a server, as well as for sending and receiving data on the connection. */
-interface WebSocket extends EventTarget {
+declare class WebSocket extends EventTarget {
+  constructor(url: string, protocols?: string | string[]);
+
+  static readonly CLOSED: number;
+  static readonly CLOSING: number;
+  static readonly CONNECTING: number;
+  static readonly OPEN: number;
+
   /**
    * Returns a string that indicates how binary data from the WebSocket object is exposed to scripts:
    *
@@ -807,19 +752,26 @@ interface WebSocket extends EventTarget {
   readonly CLOSING: number;
   readonly CONNECTING: number;
   readonly OPEN: number;
-  addEventListener<K extends keyof WebSocketEventMap>(type: K, listener: (this: WebSocket, ev: WebSocketEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
-  addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
-  removeEventListener<K extends keyof WebSocketEventMap>(type: K, listener: (this: WebSocket, ev: WebSocketEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
-  removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
+  addEventListener<K extends keyof WebSocketEventMap>(
+    type: K,
+    listener: (this: WebSocket, ev: WebSocketEventMap[K]) => any,
+    options?: boolean | AddEventListenerOptions,
+  ): void;
+  addEventListener(
+    type: string,
+    listener: EventListenerOrEventListenerObject,
+    options?: boolean | AddEventListenerOptions,
+  ): void;
+  removeEventListener<K extends keyof WebSocketEventMap>(
+    type: K,
+    listener: (this: WebSocket, ev: WebSocketEventMap[K]) => any,
+    options?: boolean | EventListenerOptions,
+  ): void;
+  removeEventListener(
+    type: string,
+    listener: EventListenerOrEventListenerObject,
+    options?: boolean | EventListenerOptions,
+  ): void;
 }
 
-declare var WebSocket: {
-  prototype: WebSocket;
-  new(url: string, protocols?: string | string[]): WebSocket;
-  readonly CLOSED: number;
-  readonly CLOSING: number;
-  readonly CONNECTING: number;
-  readonly OPEN: number;
-};
-
 type BinaryType = "arraybuffer" | "blob";
diff --git a/op_crates/fetch/lib.deno_fetch.d.ts b/op_crates/fetch/lib.deno_fetch.d.ts
index fcc2fc9198..6e7edad3f4 100644
--- a/op_crates/fetch/lib.deno_fetch.d.ts
+++ b/op_crates/fetch/lib.deno_fetch.d.ts
@@ -102,7 +102,7 @@ interface QueuingStrategy<T = any> {
 }
 
 /** This Streams API interface provides a built-in byte length queuing strategy
-   * that can be used when constructing streams. */
+ * that can be used when constructing streams. */
 declare class CountQueuingStrategy implements QueuingStrategy {
   constructor(options: { highWaterMark: number });
   highWaterMark: number;
@@ -117,8 +117,8 @@ declare class 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. */
+ * 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>;
@@ -142,7 +142,7 @@ interface ReadableStream<R = any> {
   }): AsyncIterableIterator<R>;
 }
 
-declare var ReadableStream: {
+declare const ReadableStream: {
   prototype: ReadableStream;
   new (
     underlyingSource: UnderlyingByteSource,
@@ -183,8 +183,8 @@ interface UnderlyingSink<W = any> {
 }
 
 /** 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. */
+ * streaming data to a destination, known as a sink. This object comes with
+ * built-in backpressure and queuing. */
 declare class WritableStream<W = any> {
   constructor(
     underlyingSink?: UnderlyingSink<W>,
@@ -197,17 +197,17 @@ declare class WritableStream<W = any> {
 }
 
 /** 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. */
+ * WritableStream's state. When constructing a WritableStream, the underlying
+ * sink is given a corresponding WritableStreamDefaultController instance to
+ * manipulate. */
 interface WritableStreamDefaultController {
   error(error?: any): void;
 }
 
 /** 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. */
+ * 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;
@@ -262,7 +262,9 @@ interface BlobPropertyBag {
 }
 
 /** 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. */
-interface Blob {
+declare class Blob {
+  constructor(blobParts?: BlobPart[], options?: BlobPropertyBag);
+
   readonly size: number;
   readonly type: string;
   arrayBuffer(): Promise<ArrayBuffer>;
@@ -271,49 +273,50 @@ interface Blob {
   text(): Promise<string>;
 }
 
-declare const Blob: {
-  prototype: Blob;
-  new (blobParts?: BlobPart[], options?: BlobPropertyBag): Blob;
-};
-
 interface FilePropertyBag extends BlobPropertyBag {
   lastModified?: number;
 }
 
 /** Provides information about files and allows JavaScript in a web page to
-   * access their content. */
-interface File extends Blob {
+ * access their content. */
+declare class File extends Blob {
+  constructor(
+    fileBits: BlobPart[],
+    fileName: string,
+    options?: FilePropertyBag,
+  );
+
   readonly lastModified: number;
   readonly name: string;
 }
 
-declare const File: {
-  prototype: File;
-  new (fileBits: BlobPart[], fileName: string, options?: FilePropertyBag): File;
-};
-
 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 extends DomIterable<string, FormDataEntryValue> {
+declare class FormData implements DomIterable<string, FormDataEntryValue> {
+  // TODO(ry) FormData constructor is non-standard.
+  // new(form?: HTMLFormElement): FormData;
+  constructor();
+
   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 const FormData: {
-  prototype: FormData;
-  // TODO(ry) FormData constructor is non-standard.
-  // new(form?: HTMLFormElement): FormData;
-  new (): FormData;
-};
-
 interface Body {
   /** A simple getter used to expose a `ReadableStream` of the body contents. */
   readonly body: ReadableStream<Uint8Array> | null;
@@ -364,7 +367,9 @@ interface Headers {
   ): void;
 }
 
-interface Headers extends DomIterable<string, string> {
+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.
    */
@@ -406,11 +411,6 @@ interface Headers extends DomIterable<string, string> {
   [Symbol.iterator](): IterableIterator<[string, string]>;
 }
 
-declare const Headers: {
-  prototype: Headers;
-  new (init?: HeadersInit): Headers;
-};
-
 type RequestInfo = Request | string;
 type RequestCache =
   | "default"
@@ -524,7 +524,9 @@ interface RequestInit {
 }
 
 /** This Fetch API interface represents a resource request. */
-interface Request extends Body {
+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
@@ -608,28 +610,101 @@ interface Request extends Body {
    */
   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
+   * 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>;
 }
 
-declare const Request: {
-  prototype: Request;
-  new (input: RequestInfo, init?: RequestInit): Request;
-};
+interface ResponseInit {
+  headers?: HeadersInit;
+  status?: number;
+  statusText?: string;
+}
 
-declare const Response: {
-  prototype: Response;
-  new (body?: BodyInit | null, init?: ResponseInit): Response;
-  error(): Response;
-  redirect(url: string, status?: number): Response;
-};
+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 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>;
+}
 
 /** Fetch a resource from the network. It returns a Promise that resolves to the
-   * Response to that request, whether it is successful or not.
-   *
-   *     const response = await fetch("http://my.json.host/data.json");
-   *     console.log(response.status);  // e.g. 200
-   *     console.log(response.statusText); // e.g. "OK"
-   *     const jsonData = await response.json();
-   */
+ * Response to that request, whether it is successful or not.
+ *
+ *     const response = await fetch("http://my.json.host/data.json");
+ *     console.log(response.status);  // e.g. 200
+ *     console.log(response.statusText); // e.g. "OK"
+ *     const jsonData = await response.json();
+ */
 declare function fetch(
   input: Request | URL | string,
   init?: RequestInit,