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/**
* Copyright (c) 2013-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the "flow" directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*
*/
/* BOM */
declare class Screen {
availHeight: number;
availLeft: number;
availTop: number;
availWidth: number;
colorDepth: number;
height: number;
left: number;
mozOrientation?: string;
onmozorientationchange?: any;
orientation?: {
lock(): Promise<void>;
unlock(): void;
angle: number;
onchange: () => mixed;
type: 'portrait-primary' | 'portrait-secondary' | 'landscape-primary' | 'landscape-secondary';
};
pixelDepth: number;
top: number;
width: number;
mozLockOrientation?: Function;
mozUnlockOrientation?: Function;
mozOrientation?: string;
onmozorientationchange?: Function;
}
declare var screen: Screen;
declare var window: any;
type GamepadButton = {
pressed: bool;
value: number;
}
type Gamepad = {
axes: number[];
buttons: GamepadButton[];
connected: bool;
id: string;
index: number;
mapping: string;
timestamp: number;
}
type BatteryManager = {
charging: boolean;
chargingTime: number;
dischargingTime: number;
level: number;
onchargingchange: ?Function;
onchargingtimechange: ?Function;
ondischargingtimechange: ?Function;
onlevelchange: ?Function;
}
declare class NavigatorCommon {
appName: 'Netscape';
appVersion: string;
platform: string;
userAgent: string;
language: string;
languages: Array<string>;
onLine: boolean;
hardwareConcurrency: number;
}
declare class Navigator mixins NavigatorCommon {
appCodeName: 'Mozilla';
buildID: string;
cookieEnabled: boolean;
doNotTrack?: any;
geolocation: Geolocation;
mediaDevices?: Object;
javaEnabled: Function;
maxTouchPoints: number;
mimeTypes: MimeTypeArray;
oscpu: string;
permissions: any;
plugins: PluginArray;
product: 'Gecko';
productSub: '20030107' | '20100101';
serviceWorker?: Object;
vendor: '' | 'Google Inc.' | 'Apple Computer, Inc';
vendorSub: '';
getBattery?: () => Promise<BatteryManager>;
mozGetBattery?: () => Promise<BatteryManager>;
getGamepads?: () => Object[];
webkitGetGamepads?: Function;
mozGetGamepads?: Function;
mozGamepads?: any;
gamepads?: any;
webkitGamepads?: any;
requestMIDIAccess?: Function;
registerContentHandler(mimeType: string, uri: string, title: string): void;
registerProtocolHandler(protocol: string, uri: string, title: string): void;
requestMediaKeySystemAccess?: (keySystem: string, supportedConfigurations: any[]) => Promise<any>;
sendBeacon?: Function;
getUserMedia?: Function;
webkitGetUserMedia?: Function;
mozGetUserMedia?: Function;
msGetUserMedia?: Function;
taintEnabled?: Function;
vibrate?: (pattern: number|number[]) => bool;
mozVibrate?: (pattern: number|number[]) => bool;
webkitVibrate?: (pattern: number|number[]) => bool;
}
declare var navigator: Navigator;
declare class MimeType {
type: string;
description: string;
suffixes: string;
enabledPlugin: Plugin;
}
declare class MimeTypeArray {
length: number;
item(index: number): MimeType;
namedItem(name: string): MimeType;
[key: number | string]: MimeType;
}
declare class Plugin {
description: string;
filename: string;
name: string;
version?: string; // Gecko only
length: number;
item(index: number): MimeType;
namedItem(name: string): MimeType;
[key: number | string]: MimeType;
}
declare class PluginArray {
length: number;
item(index: number): Plugin;
namedItem(name: string): Plugin;
refresh(): void;
[key: number | string]: Plugin;
}
// https://www.w3.org/TR/navigation-timing-2/
declare class PerformanceTiming {
connectEnd: number;
connectStart: number;
domainLookupEnd: number;
domainLookupStart: number;
domComplete: number;
domContentLoadedEventEnd: number;
domContentLoadedEventStart: number;
domInteractive: number;
domLoading: number;
fetchStart: number;
loadEventEnd: number;
loadEventStart: number;
navigationStart: number;
redirectEnd: number;
redirectStart: number;
requestStart: number;
responseEnd: number;
responseStart: number;
secureConnectionStart: number;
unloadEventEnd: number;
unloadEventStart: number;
}
declare class PerformanceNavigation {
TYPE_NAVIGATE: 0;
TYPE_RELOAD: 1;
TYPE_BACK_FORWARD: 2;
TYPE_RESERVED: 255;
type: 0 | 1 | 2 | 255;
redirectCount: number;
}
type PerformanceEntryFilterOptions = {
name: string;
entryType: string;
initiatorType: string;
}
// https://www.w3.org/TR/performance-timeline-2/
declare class PerformanceEntry {
name: string;
entryType: string;
startTime: number;
duration: number;
toJSON(): string;
}
// https://www.w3.org/TR/resource-timing/
declare class PerformanceResourceTiming extends PerformanceEntry {
initiatorType: string;
redirectStart: number;
redirectEnd: number;
fetchStart: number;
domainLookupStart: number;
domainLookupEnd: number;
connectStart: number;
connectEnd: number;
secureConnectionStart: number;
requestStart: number;
responseStart: number;
responseEnd: number;
}
// https://www.w3.org/TR/navigation-timing-2/
declare class PerformanceNavigationTiming extends PerformanceResourceTiming {
unloadEventStart: number;
unloadEventEnd: number;
domInteractive: number;
domContentLoadedEventStart: number;
domContentLoadedEventEnd: number;
domComplete: number;
loadEventStart: number;
loadEventEnd: number;
type: 'navigate' | 'reload' | 'back_forward' | 'prerender';
redirectCount: number;
}
declare class Performance {
navigation: PerformanceNavigation;
onresourcetimingbufferfull: (ev: Event) => any;
timing: PerformanceTiming;
clearMarks(name?: string): void;
clearMeasures(name?: string): void;
clearResourceTimings(): void;
getEntries(options?: PerformanceEntryFilterOptions): Array<PerformanceEntry>;
getEntriesByName(name: string, type?: string): Array<PerformanceEntry>;
getEntriesByType(type: string): Array<PerformanceEntry>;
mark(name: string): void;
measure(name: string, startMark?: string, endMark?: string): void;
now(): number;
setResourceTimingBufferSize(maxSize: number): void;
toJSON(): string;
}
declare var performance: Performance;
declare class History {
length: number;
scrollRestoration: 'auto' | 'manual';
state: any;
back(): void;
forward(): void;
go(delta?: any): void;
pushState(statedata: any, title: string, url?: string): void;
replaceState(statedata: any, title: string, url?: string): void;
}
declare var history: History;
declare class Location {
ancestorOrigins: string[];
hash: string;
host: string;
hostname: string;
href: string;
origin: string;
pathname: string;
port: string;
protocol: string;
search: string;
assign(url: string): void;
reload(flag?: boolean): void;
replace(url: string): void;
toString(): string;
}
declare var location: Location;
///////////////////////////////////////////////////////////////////////////////
declare class DOMParser {
parseFromString(source: string, mimeType: string): Document;
}
type FormDataEntryValue = string | File
declare class FormData {
constructor(form?: HTMLFormElement): void;
has(name: string): boolean;
get(name: string): ?FormDataEntryValue;
getAll(name: string): Array<FormDataEntryValue>;
set(name: string, value: string): void;
set(name: string, value: Blob, filename?: string): void;
set(name: string, value: File, filename?: string): void;
append(name: string, value: string): void;
append(name: string, value: Blob, filename?: string): void;
append(name: string, value: File, filename?: string): void;
delete(name: string): void;
keys(): Iterator<string>;
values(): Iterator<FormDataEntryValue>;
entries(): Iterator<[string, FormDataEntryValue]>;
}
declare class MutationRecord {
type: 'attributes' | 'characterData' | 'childList';
target: Node;
addedNodes: NodeList<Node>;
removedNodes: NodeList<Node>;
previousSibling: ?Node;
nextSibling: ?Node;
attributeName: ?string;
attributeNamespace: ?string;
oldValue: ?string;
}
type MutationObserverInitRequired =
| { childList: true }
| { attributes: true }
| { characterData: true }
declare type MutationObserverInit = MutationObserverInitRequired & {
subtree?: boolean;
attributeOldValue?: boolean;
characterDataOldValue?: boolean;
attributeFilter?: Array<string>;
}
declare class MutationObserver {
constructor(callback: (arr: Array<MutationRecord>, observer: MutationObserver) => any): void;
observe(target: Node, options: MutationObserverInit): void;
takeRecords(): Array<MutationRecord>;
disconnect(): void;
}
declare var NodeFilter: {
acceptNode(n: Node): number;
SHOW_ENTITY_REFERENCE: number;
SHOW_NOTATION: number;
SHOW_ENTITY: number;
SHOW_DOCUMENT: number;
SHOW_PROCESSING_INSTRUCTION: number;
FILTER_REJECT: number;
SHOW_CDATA_SECTION: number;
FILTER_ACCEPT: number;
SHOW_ALL: number;
SHOW_DOCUMENT_TYPE: number;
SHOW_TEXT: number;
SHOW_ELEMENT: number;
SHOW_COMMENT: number;
FILTER_SKIP: number;
SHOW_ATTRIBUTE: number;
SHOW_DOCUMENT_FRAGMENT: number;
};
declare class CloseEvent extends Event {
code: number;
reason: string;
wasClean: boolean;
}
declare class WebSocket extends EventTarget {
static CONNECTING: 0;
static OPEN: 1;
static CLOSING: 2;
static CLOSED: 3;
constructor(url: string, protocols?: string | Array<string>): void;
protocol: string;
readyState: number;
bufferedAmount: number;
onopen: (ev: Event) => any;
extensions: string;
onmessage: (ev: MessageEvent) => any;
onclose: (ev: CloseEvent) => any;
onerror: (ev: Event) => any;
binaryType: string;
url: string;
close(code?: number, reason?: string): void;
send(data: any): void;
CONNECTING: 0;
OPEN: 1;
CLOSING: 2;
CLOSED: 3;
}
declare class Worker extends EventTarget {
constructor(stringUrl: string): void;
onerror: (ev: Event) => any;
onmessage: (ev: MessageEvent) => any;
postMessage(message: any, ports?: any): void;
terminate(): void;
}
declare class SharedWorker extends EventTarget {
constructor(stringUrl: string): void;
port: MessagePort;
onerror: (ev: Event) => any;
}
declare function importScripts(...urls: Array<string>): void;
declare class WorkerGlobalScope extends EventTarget {
self: WorkerGlobalScope;
location: WorkerLocation;
navigator: WorkerNavigator;
close(): void;
importScripts(...urls: Array<string>): void;
onerror: (ev: Event) => any;
onlanguagechange: (ev: Event) => any;
onoffline: (ev: Event) => any;
ononline: (ev: Event) => any;
onrejectionhandled: (ev: PromiseRejectionEvent) => any;
onunhandledrejection: (ev: PromiseRejectionEvent) => any;
}
declare class DedicatedWorkerGlobalScope extends WorkerGlobalScope {
onmessage(): (ev: MessageEvent) => any;
postMessage(message: any, transfer?: Iterable<Object>): void;
}
declare class SharedWorkerGlobalScope extends WorkerGlobalScope {
name: string;
onconnect: (ev: MessageEvent) => any;
}
declare class WorkerLocation {
origin: string;
protocol: string;
host: string;
hostname: string;
port: string;
pathname: string;
search: string;
hash: string;
}
declare class WorkerNavigator mixins NavigatorCommon {}
declare class XDomainRequest {
timeout: number;
onerror: (ev: Event) => any;
onload: (ev: Event) => any;
onprogress: (ev: Event) => any;
ontimeout: (ev: Event) => any;
responseText: string;
contentType: string;
open(method: string, url: string): void;
abort(): void;
send(data?: any): void;
addEventListener(type: string, listener: (evt: any) => void, useCapture?: boolean): void;
statics: {
create(): XDomainRequest;
}
}
declare class XMLHttpRequest extends EventTarget {
responseBody: any;
status: number;
readyState: number;
responseText: string;
responseXML: any;
ontimeout: ProgressEventHandler;
statusText: string;
onreadystatechange: (ev: Event) => any;
timeout: number;
onload: ProgressEventHandler;
response: any;
withCredentials: boolean;
onprogress: ProgressEventHandler;
onabort: ProgressEventHandler;
responseType: string;
onloadend: ProgressEventHandler;
upload: XMLHttpRequestEventTarget;
onerror: ProgressEventHandler;
onloadstart: ProgressEventHandler;
msCaching: string;
open(method: string, url: string, async?: boolean, user?: string, password?: string): void;
send(data?: any): void;
abort(): void;
getAllResponseHeaders(): string;
setRequestHeader(header: string, value: string): void;
getResponseHeader(header: string): string;
msCachingEnabled(): boolean;
overrideMimeType(mime: string): void;
LOADING: number;
DONE: number;
UNSENT: number;
OPENED: number;
HEADERS_RECEIVED: number;
statics: {
create(): XMLHttpRequest;
}
}
declare class XMLHttpRequestEventTarget extends EventTarget {
onprogress: ProgressEventHandler;
onerror: ProgressEventHandler;
onload: ProgressEventHandler;
ontimeout: ProgressEventHandler;
onabort: ProgressEventHandler;
onloadstart: ProgressEventHandler;
onloadend: ProgressEventHandler;
}
declare class XMLSerializer {
serializeToString(target: Node): string;
}
declare class Geolocation {
getCurrentPosition: (
success: (position: Position) => any,
error?: (error: PositionError) => any,
options?: PositionOptions
) => any;
watchPosition: (
success: (position: Position) => any,
error?: (error: PositionError) => any,
options?: PositionOptions
) => any;
clearWatch: any;
}
declare class Position {
coords: Coordinates;
timestamp: number;
}
declare class Coordinates {
latitude: number;
longitude: number;
altitude?: number;
accuracy: number;
altitudeAccuracy?: number;
heading?: number;
}
declare class PositionError {
code: number;
message: string;
PERMISSION_DENIED: number;
POSITION_UNAVAILABLE: number;
TIMEOUT: number;
}
type PositionOptions = {
enableHighAccuracy: boolean;
timeout: number;
maximumAge: number;
}
declare class AudioContext {
currentTime: number;
destination: AudioDestinationNode;
listener: AudioListener;
sampleRate: number;
state: any;
onstatechange: (ev: any) => any;
close(): void;
createBuffer(numOfChannels: number, length: number, sampleRate: number): AudioBuffer;
createBufferSource(myMediaElement?: HTMLMediaElement): AudioBufferSourceNode;
createMediaElementSource(myMediaElement: HTMLMediaElement): MediaElementAudioSourceNode;
createMediaStreamSource(): MediaStreamAudioSourceNode;
createMediaStreamDestination(): MediaStream;
createScriptProcessor(bufferSize: number, numberOfInputChannels: number, numberOfOutputChannels: number): ScriptProcessorNode;
createAnalyser(): AnalyserNode;
createBiquadFilter(): BiquadFilterNode;
createChannelMerger(numberOfInputs?: number): ChannelMergerNode;
createChannelSplitter(numberOfInputs?: number): ChannelSplitterNode;
createConvolver(): ConvolverNode;
createDelay(maxDelayTime?: number): DelayNode;
createDynamicCompressor(): DynamicsCompressorNode;
createGain(): GainNode;
createOscillator(): OscillatorNode;
createPanner(): PannerNode;
createPeriodicWave(real: Float32Array, img: Float32Array, options?: {
disableNormalization: bool,
}): PeriodicWave;
createWaveShaper(): WaveShaperNode;
decodeAudioData(arrayBuffer: ArrayBuffer, decodeSuccessCallback: Function, decodeErrorCallback: Function): void;
decodeAudioData(arrayBuffer: ArrayBuffer): Promise<AudioBuffer>;
resume(): Promise<void>;
suspend(): Promise<void>;
}
declare class AudioNode {
context: AudioContext;
numberOfInputs: number;
numberOfOutputs: number;
channelCount: number;
channelCoundMode: any;
channelInterpretation: 'speakers'|'discrete';
connect(audioNode: AudioNode, output?: number, input?: number): AudioNode;
connect(destination: AudioParam, output?: number): void;
disconnect(destination?: AudioNode, output?: number, input?: number): void;
}
declare class AudioParam extends AudioNode {
value: number;
defaultValue: number;
setValueAtTime(value: number, startTime: number): this;
linearRampToValueAtTime(value: number, endTime: number): this;
exponentialRampToValueAtTime(value: number, endTime: number): this;
setTargetAtTime(target: number, startTime: number, timeConstant: number): this;
setValueCurveAtTime(values: Float32Array, startTime: number, duration: number): this;
cancelScheduledValues(startTime: number): this;
}
declare class AudioDestinationNode extends AudioNode {
maxChannelCount: number;
}
declare class AudioListener extends AudioNode {
setOrientation(x: number, y: number, z: number, xUp: number, yUp: number, zUp: number): void;
}
declare class AudioBuffer {
sampleRate: number;
length: number;
duration: number;
numberOfChannels: number;
getChannelData(channel: number): Float32Array;
copyFromChannel(destination: Float32Array, channelNumber: number, startInChannel?: number): void;
copyToChannel(source: Float32Array, channelNumber: number, startInChannel?: number): void;
}
declare class AudioBufferSourceNode extends AudioNode {
buffer: AudioBuffer;
detune: AudioParam;
loop: bool;
loopStart: number;
loopEnd: number;
playbackRate: AudioParam;
onended: (ev: any) => any;
start(when?: number, offset?: number, duration?: number): void;
stop(when?: number): void;
}
declare class MediaStream extends EventTarget {
active: bool;
ended: bool;
id: string;
onactive: (ev: any) => any;
onaddtrack: (ev: any) => any;
onended: (ev: any) => any;
oninactive: (ev: any) => any;
onremovetrack: (ev: any) => any;
addTrack(track: MediaStreamTrack): void;
clone(): MediaStream;
getAudioTracks(): MediaStreamTrack[];
getTrackById(trackid?: string): ?MediaStreamTrack;
getTracks(): MediaStreamTrack[];
getVideoTracks(): MediaStreamTrack[];
removeTrack(track: MediaStreamTrack): void;
}
declare class MediaStreamTrack {
enabled: bool;
id: string;
kind: string;
label: string;
muted: bool;
readonly: bool;
readyState: 'live'|'ended';
remote: bool;
onstarted: (ev: any) => any;
onmute: (ev: any) => any;
onunmute: (ev: any) => any;
onoverconstrained: (ev: any) => any;
onended: (ev: any) => any;
getConstraints(): any;
applyConstraints(): any;
getSettings(): any;
getCapabilities(): any;
clone(): MediaStreamTrack;
stop(): void;
}
declare class MediaElementAudioSourceNode extends AudioNode {}
declare class MediaStreamAudioSourceNode extends AudioNode {}
declare class ScriptProcessorNode extends AudioNode {
bufferSize: number;
onaudioprocess: (ev: any) => any;
}
declare class AnalyserNode extends AudioNode {
fftSize: number;
frequencyBinCount: number;
minDecibels: number;
maxDecibels: number;
smoothingTimeConstant: number;
getFloatFrequencyData(array: Float32Array): Float32Array;
getByteFrequencyData(array: Uint8Array): Uint8Array;
getFloatTimeDomainData(array: Float32Array): Float32Array;
getByteTimeDomainData(array: Uint8Array): Uint8Array;
}
declare class BiquadFilterNode extends AudioNode {
frequency: AudioParam;
detune: AudioParam;
Q: AudioParam;
gain: AudioParam;
type: 'lowpass'|'highpass'|'bandpass'|'lowshelf'|'highshelf'|'peaking'|'notch'|'allpass';
getFrequencyResponse(frequencyHz: Float32Array, magResponse: Float32Array, phaseResponse: Float32Array): BiquadFilterNode;
}
declare class ChannelMergerNode extends AudioNode {}
declare class ChannelSplitterNode extends AudioNode {}
declare class ConvolverNode extends AudioNode {
buffer: AudioBuffer;
normalize: bool;
}
declare class DelayNode extends AudioNode {
delayTime: number;
}
declare class DynamicsCompressorNode extends AudioNode {
threshold: AudioParam;
knee: AudioParam;
ratio: AudioParam;
reduction: AudioParam;
attack: AudioParam;
release: AudioParam;
}
declare class GainNode extends AudioNode {
gain: AudioParam;
}
declare class OscillatorNode extends AudioNode {
frequency: AudioParam;
detune: AudioParam;
type: 'sine' | 'square' | 'sawtooth' | 'triangle' | 'custom';
start(when?: number): void;
stop(when?: number): void;
setPeriodicWave(periodicWave: PeriodicWave): void;
}
declare class PannerNode extends AudioNode {
panningModel: 'equalpower'|'HRTF';
distanceModel: 'linear'|'inverse'|'exponential';
refDistance: number;
maxDistance: number;
rollofFactor: number;
coneInnerAngle: number;
coneOuterAngle: number;
coneOuterGain: number;
setPosition(x: number, y: number, z: number): void;
setOrientation(x: number, y: number, z: number): void;
}
declare class PeriodicWave extends AudioNode {}
declare class WaveShaperNode extends AudioNode {
curve: Float32Array;
oversample: 'none'|'2x'|'4x';
}
// this part of spec is not finished yet, apparently
// https://stackoverflow.com/questions/35296664/can-fetch-get-object-as-headers
type HeadersInit = Headers | {[key: string]: string};
// TODO Heades and URLSearchParams are almost the same thing.
// Could it somehow be abstracted away?
declare class Headers {
@@iterator(): Iterator<[string, string]>;
constructor(init?: HeadersInit): void;
append(name: string, value: string): void;
delete(name: string): void;
entries(): Iterator<[string, string]>;
get(name: string): string;
getAll(name: string): Array<string>;
has(name: string): boolean;
keys(): Iterator<string>;
set(name: string, value: string): void;
values(): Iterator<string>;
}
declare class URLSearchParams {
@@iterator(): Iterator<[string, string]>;
constructor(query?: string | URLSearchParams): void;
append(name: string, value: string): void;
delete(name: string): void;
entries(): Iterator<[string, string]>;
get(name: string): string;
getAll(name: string): Array<string>;
has(name: string): boolean;
keys(): Iterator<string>;
set(name: string, value: string): void;
values(): Iterator<string>;
}
type CacheType = 'default' | 'no-store' | 'reload' | 'no-cache' | 'force-cache' | 'only-if-cached';
type CredentialsType = 'omit' | 'same-origin' | 'include';
type ModeType = 'cors' | 'no-cors' | 'same-origin';
type RedirectType = 'follow' | 'error' | 'manual';
type MethodType = 'GET' | 'POST' | 'DELETE' | 'HEAD' | 'OPTIONS' | 'PUT' | 'PATCH' ;
type ReferrerPolicyType =
'' | 'no-referrer' | 'no-referrer-when-downgrade' | 'origin-only' |
'origin-when-cross-origin' | 'unsafe-url';
type ResponseType = 'basic' | 'cors' | 'default' | 'error' | 'opaque' | 'opaqueredirect' ;
type RequestOptions = {
body?: ?(Blob | FormData | URLSearchParams | string);
cache?: ?CacheType;
credentials?: ?CredentialsType;
headers?: ?HeadersInit;
integrity?: ?string;
method?: ?MethodType;
mode?: ?ModeType;
redirect?: ?RedirectType;
referrer?: ?string;
referrerPolicy?: ?ReferrerPolicyType;
}
type ResponseOptions = {
status?: ?number;
statusText?: ?string;
headers?: ?HeadersInit
}
declare class Response {
constructor(input?: string | URLSearchParams | FormData | Blob, init?: ResponseOptions): void;
clone(): Response;
static error(): Response;
static redirect(url: string, status: number): Response;
type: ResponseType;
url: string;
useFinalURL: boolean;
ok: boolean;
status: number;
statusText: string;
headers: Headers;
// Body methods and attributes
bodyUsed: boolean;
body: ?ReadableStream,
arrayBuffer(): Promise<ArrayBuffer>;
blob(): Promise<Blob>;
formData(): Promise<FormData>;
json(): Promise<any>;
text(): Promise<string>;
}
declare class Request {
constructor(input: string | Request, init?: RequestOptions): void;
clone(): Request;
url: string;
cache: CacheType;
credentials: CredentialsType;
headers: Headers;
integrity: string;
method: MethodType;
mode: ModeType;
redirect: RedirectType;
referrer: string;
referrerPolicy: ReferrerPolicyType;
// Body methods and attributes
bodyUsed: boolean;
arrayBuffer(): Promise<ArrayBuffer>;
blob(): Promise<Blob>;
formData(): Promise<FormData>;
json(): Promise<any>;
text(): Promise<string>;
}
declare function fetch(input: string | Request, init?: RequestOptions): Promise<Response>;
type TextEncoder$availableEncodings = 'utf-8' | 'utf8' | 'unicode-1-1-utf-8' | 'utf-16be' | 'utf-16' | 'utf-16le';
declare class TextEncoder {
constructor(encoding?: TextEncoder$availableEncodings): TextEncoder;
encode(buffer: string, options?: {
stream: bool,
}): Uint8Array;
encoding: TextEncoder$availableEncodings;
}
type TextDecoder$availableEncodings =
| '866'
| 'ansi_x3.4-1968'
| 'arabic'
| 'ascii'
| 'asmo-708'
| 'big5-hkscs'
| 'big5'
| 'chinese'
| 'cn-big5'
| 'cp1250'
| 'cp1251'
| 'cp1252'
| 'cp1253'
| 'cp1254'
| 'cp1255'
| 'cp1256'
| 'cp1257'
| 'cp1258'
| 'cp819'
| 'cp866'
| 'csbig5'
| 'cseuckr'
| 'cseucpkdfmtjapanese'
| 'csgb2312'
| 'csibm866'
| 'csiso2022jp'
| 'csiso2022kr'
| 'csiso58gb231280'
| 'csiso88596e'
| 'csiso88596i'
| 'csiso88598e'
| 'csiso88598i'
| 'csisolatin1'
| 'csisolatin2'
| 'csisolatin3'
| 'csisolatin4'
| 'csisolatin5'
| 'csisolatin6'
| 'csisolatin9'
| 'csisolatinarabic'
| 'csisolatincyrillic'
| 'csisolatingreek'
| 'csisolatinhebrew'
| 'cskoi8r'
| 'csksc56011987'
| 'csmacintosh'
| 'csshiftjis'
| 'cyrillic'
| 'dos-874'
| 'ecma-114'
| 'ecma-118'
| 'elot_928'
| 'euc-jp'
| 'euc-kr'
| 'gb_2312-80'
| 'gb_2312'
| 'gb18030'
| 'gb2312'
| 'gbk'
| 'greek'
| 'greek8'
| 'hebrew'
| 'hz-gb-2312'
| 'ibm819'
| 'ibm866'
| 'iso_8859-1:1987'
| 'iso_8859-1'
| 'iso_8859-2:1987'
| 'iso_8859-2'
| 'iso_8859-3:1988'
| 'iso_8859-3'
| 'iso_8859-4:1988'
| 'iso_8859-4'
| 'iso_8859-5:1988'
| 'iso_8859-5'
| 'iso_8859-6:1987'
| 'iso_8859-6'
| 'iso_8859-7:1987'
| 'iso_8859-7'
| 'iso_8859-8:1988'
| 'iso_8859-8'
| 'iso_8859-9:1989'
| 'iso_8859-9'
| 'iso-2022-cn-ext'
| 'iso-2022-cn'
| 'iso-2022-jp'
| 'iso-2022-kr'
| 'iso-8859-1'
| 'iso-8859-10'
| 'iso-8859-11'
| 'iso-8859-13'
| 'iso-8859-14'
| 'iso-8859-15'
| 'iso-8859-16'
| 'iso-8859-2'
| 'iso-8859-3'
| 'iso-8859-4'
| 'iso-8859-5'
| 'iso-8859-6-e'