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437 lines
14 KiB
TypeScript
437 lines
14 KiB
TypeScript
// Copyright 2018-2021 the Deno authors. All rights reserved. MIT license.
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// deno-lint-ignore-file no-explicit-any
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/// <reference no-default-lib="true" />
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/// <reference lib="esnext" />
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interface DomIterable<K, V> {
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keys(): IterableIterator<K>;
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values(): IterableIterator<V>;
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entries(): IterableIterator<[K, V]>;
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[Symbol.iterator](): IterableIterator<[K, V]>;
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forEach(
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callback: (value: V, key: K, parent: this) => void,
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thisArg?: any,
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): void;
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}
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type FormDataEntryValue = File | string;
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/** Provides a way to easily construct a set of key/value pairs representing
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* form fields and their values, which can then be easily sent using the
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* XMLHttpRequest.send() method. It uses the same format a form would use if the
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* encoding type were set to "multipart/form-data". */
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declare class FormData implements DomIterable<string, FormDataEntryValue> {
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// TODO(ry) FormData constructor is non-standard.
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// new(form?: HTMLFormElement): FormData;
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constructor();
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append(name: string, value: string | Blob, fileName?: string): void;
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delete(name: string): void;
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get(name: string): FormDataEntryValue | null;
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getAll(name: string): FormDataEntryValue[];
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has(name: string): boolean;
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set(name: string, value: string | Blob, fileName?: string): void;
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keys(): IterableIterator<string>;
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values(): IterableIterator<string>;
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entries(): IterableIterator<[string, FormDataEntryValue]>;
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[Symbol.iterator](): IterableIterator<[string, FormDataEntryValue]>;
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forEach(
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callback: (value: FormDataEntryValue, key: string, parent: this) => void,
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thisArg?: any,
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): void;
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}
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interface Body {
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/** A simple getter used to expose a `ReadableStream` of the body contents. */
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readonly body: ReadableStream<Uint8Array> | null;
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/** Stores a `Boolean` that declares whether the body has been used in a
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* response yet.
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*/
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readonly bodyUsed: boolean;
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/** Takes a `Response` stream and reads it to completion. It returns a promise
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* that resolves with an `ArrayBuffer`.
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*/
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arrayBuffer(): Promise<ArrayBuffer>;
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/** Takes a `Response` stream and reads it to completion. It returns a promise
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* that resolves with a `Blob`.
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*/
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blob(): Promise<Blob>;
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/** Takes a `Response` stream and reads it to completion. It returns a promise
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* that resolves with a `FormData` object.
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*/
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formData(): Promise<FormData>;
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/** Takes a `Response` stream and reads it to completion. It returns a promise
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* that resolves with the result of parsing the body text as JSON.
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*/
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json(): Promise<any>;
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/** Takes a `Response` stream and reads it to completion. It returns a promise
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* that resolves with a `USVString` (text).
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*/
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text(): Promise<string>;
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}
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type HeadersInit = Headers | string[][] | Record<string, string>;
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/** This Fetch API interface allows you to perform various actions on HTTP
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* request and response headers. These actions include retrieving, setting,
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* adding to, and removing. A Headers object has an associated header list,
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* which is initially empty and consists of zero or more name and value pairs.
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* You can add to this using methods like append() (see Examples). In all
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* methods of this interface, header names are matched by case-insensitive byte
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* sequence. */
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interface Headers {
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append(name: string, value: string): void;
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delete(name: string): void;
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get(name: string): string | null;
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has(name: string): boolean;
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set(name: string, value: string): void;
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forEach(
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callbackfn: (value: string, key: string, parent: Headers) => void,
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thisArg?: any,
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): void;
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}
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declare class Headers implements DomIterable<string, string> {
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constructor(init?: HeadersInit);
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/** Appends a new value onto an existing header inside a `Headers` object, or
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* adds the header if it does not already exist.
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*/
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append(name: string, value: string): void;
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/** Deletes a header from a `Headers` object. */
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delete(name: string): void;
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/** Returns an iterator allowing to go through all key/value pairs
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* contained in this Headers object. The both the key and value of each pairs
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* are ByteString objects.
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*/
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entries(): IterableIterator<[string, string]>;
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/** Returns a `ByteString` sequence of all the values of a header within a
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* `Headers` object with a given name.
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*/
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get(name: string): string | null;
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/** Returns a boolean stating whether a `Headers` object contains a certain
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* header.
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*/
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has(name: string): boolean;
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/** Returns an iterator allowing to go through all keys contained in
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* this Headers object. The keys are ByteString objects.
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*/
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keys(): IterableIterator<string>;
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/** Sets a new value for an existing header inside a Headers object, or adds
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* the header if it does not already exist.
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*/
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set(name: string, value: string): void;
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/** Returns an iterator allowing to go through all values contained in
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* this Headers object. The values are ByteString objects.
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*/
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values(): IterableIterator<string>;
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forEach(
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callbackfn: (value: string, key: string, parent: this) => void,
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thisArg?: any,
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): void;
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/** The Symbol.iterator well-known symbol specifies the default
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* iterator for this Headers object
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*/
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[Symbol.iterator](): IterableIterator<[string, string]>;
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}
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type RequestInfo = Request | string;
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type RequestCache =
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| "default"
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| "force-cache"
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| "no-cache"
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| "no-store"
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| "only-if-cached"
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| "reload";
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type RequestCredentials = "include" | "omit" | "same-origin";
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type RequestMode = "cors" | "navigate" | "no-cors" | "same-origin";
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type RequestRedirect = "error" | "follow" | "manual";
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type ReferrerPolicy =
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| ""
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| "no-referrer"
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| "no-referrer-when-downgrade"
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| "origin"
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| "origin-when-cross-origin"
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| "same-origin"
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| "strict-origin"
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| "strict-origin-when-cross-origin"
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| "unsafe-url";
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type BodyInit =
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| Blob
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| BufferSource
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| FormData
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| URLSearchParams
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| ReadableStream<Uint8Array>
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| string;
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type RequestDestination =
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| ""
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| "audio"
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| "audioworklet"
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| "document"
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| "embed"
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| "font"
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| "image"
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| "manifest"
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| "object"
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| "paintworklet"
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| "report"
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| "script"
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| "sharedworker"
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| "style"
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| "track"
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| "video"
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| "worker"
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| "xslt";
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interface RequestInit {
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/**
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* A BodyInit object or null to set request's body.
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*/
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body?: BodyInit | null;
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/**
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* A string indicating how the request will interact with the browser's cache
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* to set request's cache.
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*/
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cache?: RequestCache;
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/**
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* A string indicating whether credentials will be sent with the request
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* always, never, or only when sent to a same-origin URL. Sets request's
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* credentials.
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*/
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credentials?: RequestCredentials;
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/**
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* A Headers object, an object literal, or an array of two-item arrays to set
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* request's headers.
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*/
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headers?: HeadersInit;
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/**
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* A cryptographic hash of the resource to be fetched by request. Sets
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* request's integrity.
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*/
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integrity?: string;
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/**
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* A boolean to set request's keepalive.
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*/
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keepalive?: boolean;
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/**
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* A string to set request's method.
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*/
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method?: string;
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/**
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* A string to indicate whether the request will use CORS, or will be
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* restricted to same-origin URLs. Sets request's mode.
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*/
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mode?: RequestMode;
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/**
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* A string indicating whether request follows redirects, results in an error
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* upon encountering a redirect, or returns the redirect (in an opaque
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* fashion). Sets request's redirect.
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*/
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redirect?: RequestRedirect;
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/**
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* A string whose value is a same-origin URL, "about:client", or the empty
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* string, to set request's referrer.
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*/
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referrer?: string;
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/**
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* A referrer policy to set request's referrerPolicy.
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*/
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referrerPolicy?: ReferrerPolicy;
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/**
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* An AbortSignal to set request's signal.
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*/
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signal?: AbortSignal | null;
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/**
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* Can only be null. Used to disassociate request from any Window.
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*/
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window?: any;
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}
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/** This Fetch API interface represents a resource request. */
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declare class Request implements Body {
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constructor(input: RequestInfo, init?: RequestInit);
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/**
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* Returns the cache mode associated with request, which is a string
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* indicating how the request will interact with the browser's cache when
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* fetching.
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*/
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readonly cache: RequestCache;
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/**
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* Returns the credentials mode associated with request, which is a string
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* indicating whether credentials will be sent with the request always, never,
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* or only when sent to a same-origin URL.
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*/
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readonly credentials: RequestCredentials;
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/**
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* Returns the kind of resource requested by request, e.g., "document" or "script".
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*/
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readonly destination: RequestDestination;
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/**
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* Returns a Headers object consisting of the headers associated with request.
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* Note that headers added in the network layer by the user agent will not be
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* accounted for in this object, e.g., the "Host" header.
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*/
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readonly headers: Headers;
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/**
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* Returns request's subresource integrity metadata, which is a cryptographic
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* hash of the resource being fetched. Its value consists of multiple hashes
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* separated by whitespace. [SRI]
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*/
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readonly integrity: string;
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/**
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* Returns a boolean indicating whether or not request is for a history
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* navigation (a.k.a. back-forward navigation).
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*/
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readonly isHistoryNavigation: boolean;
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/**
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* Returns a boolean indicating whether or not request is for a reload
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* navigation.
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*/
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readonly isReloadNavigation: boolean;
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/**
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* Returns a boolean indicating whether or not request can outlive the global
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* in which it was created.
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*/
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readonly keepalive: boolean;
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/**
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* Returns request's HTTP method, which is "GET" by default.
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*/
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readonly method: string;
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/**
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* Returns the mode associated with request, which is a string indicating
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* whether the request will use CORS, or will be restricted to same-origin
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* URLs.
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*/
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readonly mode: RequestMode;
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/**
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* Returns the redirect mode associated with request, which is a string
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* indicating how redirects for the request will be handled during fetching. A
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* request will follow redirects by default.
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*/
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readonly redirect: RequestRedirect;
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/**
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* Returns the referrer of request. Its value can be a same-origin URL if
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* explicitly set in init, the empty string to indicate no referrer, and
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* "about:client" when defaulting to the global's default. This is used during
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* fetching to determine the value of the `Referer` header of the request
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* being made.
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*/
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readonly referrer: string;
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/**
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* Returns the referrer policy associated with request. This is used during
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* fetching to compute the value of the request's referrer.
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*/
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readonly referrerPolicy: ReferrerPolicy;
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/**
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* Returns the signal associated with request, which is an AbortSignal object
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* indicating whether or not request has been aborted, and its abort event
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* handler.
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*/
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readonly signal: AbortSignal;
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/**
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* Returns the URL of request as a string.
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*/
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readonly url: string;
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clone(): Request;
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/** A simple getter used to expose a `ReadableStream` of the body contents. */
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readonly body: ReadableStream<Uint8Array> | null;
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/** Stores a `Boolean` that declares whether the body has been used in a
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* response yet.
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*/
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readonly bodyUsed: boolean;
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/** Takes a `Response` stream and reads it to completion. It returns a promise
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* that resolves with an `ArrayBuffer`.
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*/
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arrayBuffer(): Promise<ArrayBuffer>;
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/** Takes a `Response` stream and reads it to completion. It returns a promise
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* that resolves with a `Blob`.
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*/
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blob(): Promise<Blob>;
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/** Takes a `Response` stream and reads it to completion. It returns a promise
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* that resolves with a `FormData` object.
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*/
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formData(): Promise<FormData>;
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/** Takes a `Response` stream and reads it to completion. It returns a promise
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* that resolves with the result of parsing the body text as JSON.
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*/
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json(): Promise<any>;
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/** Takes a `Response` stream and reads it to completion. It returns a promise
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* that resolves with a `USVString` (text).
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*/
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text(): Promise<string>;
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}
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interface ResponseInit {
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headers?: HeadersInit;
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status?: number;
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statusText?: string;
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}
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type ResponseType =
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| "basic"
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| "cors"
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| "default"
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| "error"
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| "opaque"
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| "opaqueredirect";
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/** This Fetch API interface represents the response to a request. */
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declare class Response implements Body {
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constructor(body?: BodyInit | null, init?: ResponseInit);
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static error(): Response;
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static redirect(url: string, status?: number): Response;
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readonly headers: Headers;
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readonly ok: boolean;
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readonly redirected: boolean;
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readonly status: number;
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readonly statusText: string;
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readonly trailer: Promise<Headers>;
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readonly type: ResponseType;
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readonly url: string;
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clone(): Response;
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/** A simple getter used to expose a `ReadableStream` of the body contents. */
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readonly body: ReadableStream<Uint8Array> | null;
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/** Stores a `Boolean` that declares whether the body has been used in a
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* response yet.
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*/
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readonly bodyUsed: boolean;
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/** Takes a `Response` stream and reads it to completion. It returns a promise
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* that resolves with an `ArrayBuffer`.
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*/
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arrayBuffer(): Promise<ArrayBuffer>;
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/** Takes a `Response` stream and reads it to completion. It returns a promise
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* that resolves with a `Blob`.
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*/
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blob(): Promise<Blob>;
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/** Takes a `Response` stream and reads it to completion. It returns a promise
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* that resolves with a `FormData` object.
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*/
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formData(): Promise<FormData>;
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/** Takes a `Response` stream and reads it to completion. It returns a promise
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* that resolves with the result of parsing the body text as JSON.
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*/
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json(): Promise<any>;
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/** Takes a `Response` stream and reads it to completion. It returns a promise
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* that resolves with a `USVString` (text).
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*/
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text(): Promise<string>;
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}
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/** Fetch a resource from the network. It returns a Promise that resolves to the
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* Response to that request, whether it is successful or not.
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*
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* const response = await fetch("http://my.json.host/data.json");
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* console.log(response.status); // e.g. 200
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* console.log(response.statusText); // e.g. "OK"
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* const jsonData = await response.json();
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*/
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declare function fetch(
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input: Request | URL | string,
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init?: RequestInit,
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): Promise<Response>;
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