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globals.d.ts
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globals.d.ts
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type BinaryType = "arraybuffer" | "blob";
type Transferable = ArrayBuffer;
type MessageEventSource = undefined;
type Encoding = "utf-8" | "windows-1252" | "utf-16";
type Platform =
| "aix"
| "android"
| "darwin"
| "freebsd"
| "haiku"
| "linux"
| "openbsd"
| "sunos"
| "win32"
| "cygwin"
| "netbsd";
type Architecture =
| "arm"
| "arm64"
| "ia32"
| "mips"
| "mipsel"
| "ppc"
| "ppc64"
| "s390"
| "s390x"
| "x64";
type Signals =
| "SIGABRT"
| "SIGALRM"
| "SIGBUS"
| "SIGCHLD"
| "SIGCONT"
| "SIGFPE"
| "SIGHUP"
| "SIGILL"
| "SIGINT"
| "SIGIO"
| "SIGIOT"
| "SIGKILL"
| "SIGPIPE"
| "SIGPOLL"
| "SIGPROF"
| "SIGPWR"
| "SIGQUIT"
| "SIGSEGV"
| "SIGSTKFLT"
| "SIGSTOP"
| "SIGSYS"
| "SIGTERM"
| "SIGTRAP"
| "SIGTSTP"
| "SIGTTIN"
| "SIGTTOU"
| "SIGUNUSED"
| "SIGURG"
| "SIGUSR1"
| "SIGUSR2"
| "SIGVTALRM"
| "SIGWINCH"
| "SIGXCPU"
| "SIGXFSZ"
| "SIGBREAK"
| "SIGLOST"
| "SIGINFO";
interface console {
assert(condition?: boolean, ...data: any[]): void;
clear(): void;
/**
* Increment a [count](https://www.youtube.com/watch?v=2AoxCkySv34&t=22s)
* @param label label counter
*/
count(label?: string): void;
countReset(label?: string): void;
debug(...data: any[]): void;
dir(item?: any, options?: any): void;
dirxml(...data: any[]): void;
/**
* Log to stderr in your terminal
*
* Appears in red
*
* @param data something to display
*/
error(...data: any[]): void;
/** Does nothing currently */
group(...data: any[]): void;
/** Does nothing currently */
groupCollapsed(...data: any[]): void;
/** Does nothing currently */
groupEnd(): void;
info(...data: any[]): void;
log(...data: any[]): void;
/** Does nothing currently */
table(tabularData?: any, properties?: string[]): void;
/**
* Begin a timer to log with {@link console.timeEnd}
*
* @param label - The label to use for the timer
*
* ```ts
* console.time("how long????");
* for (let i = 0; i < 999999; i++) {
* // do stuff
* let x = i * i;
* }
* console.timeEnd("how long????");
* ```
*/
time(label?: string): void;
/**
* End a timer to log with {@link console.time}
*
* @param label - The label to use for the timer
*
* ```ts
* console.time("how long????");
* for (let i = 0; i < 999999; i++) {
* // do stuff
* let x = i * i;
* }
* console.timeEnd("how long????");
* ```
*/
timeEnd(label?: string): void;
timeLog(label?: string, ...data: any[]): void;
timeStamp(label?: string): void;
trace(...data: any[]): void;
warn(...data: any[]): void;
}
declare var console: console;
declare namespace NodeJS {
interface RequireResolve {
(id: string, options?: { paths?: string[] | undefined }): string;
paths(request: string): string[] | null;
}
interface Require {
(id: string): any;
resolve: RequireResolve;
}
}
interface ImportMeta {
/**
* `file://` url string for the current module.
*
* @example
* ```ts
* console.log(import.meta.url);
* "file:///Users/me/projects/my-app/src/my-app.ts"
* ```
*/
url: string;
/**
* Absolute path to the source file
*/
path: string;
/**
* Absolute path to the directory containing the source file.
*
* Does not have a trailing slash
*/
dir: string;
/**
* Filename of the source file
*/
file: string;
/**
* Resolve a module ID the same as if you imported it
*
* On failure, throws a `ResolveError`
*/
resolve(moduleId: string): Promise<string>;
/**
* Resolve a `moduleId` as though it were imported from `parent`
*
* On failure, throws a `ResolveError`
*/
// tslint:disable-next-line:unified-signatures
resolve(moduleId: string, parent: string): Promise<string>;
/**
* Resolve a module ID the same as if you imported it
*
* The `parent` argument is optional, and defaults to the current module's path.
*/
resolveSync(moduleId: string, parent?: string): string;
/**
* Resolve a module ID the same as if you imported it
*
* The `parent` argument is optional, and defaults to the current module's path.
*/
require: NodeJS.Require;
}
/**
* NodeJS-style `require` function
*
* Internally, uses `import.meta.require`
*
* @param moduleId - The module ID to resolve
*/
declare var require: NodeJS.Require;
/** @deprecated Please use `import.meta.path` instead. */
declare var __filename: string;
/** @deprecated Please use `import.meta.dir` instead. */
declare var __dirname: string;
interface StructuredSerializeOptions {
transfer?: Transferable[];
}
interface EncodeIntoResult {
/**
* The read Unicode code units of input.
*/
read: number;
/**
* The written UTF-8 bytes of output.
*/
written: number;
}
interface Process {
/**
* The current version of Bun
*/
version: string;
/**
* Run a function on the next tick of the event loop
*
* This is the same as {@link queueMicrotask}
*
* @param callback - The function to run
*/
nextTick(callback: (...args: any) => any, ...args: any): void;
versions: Record<string, string>;
ppid: number;
pid: number;
arch: Architecture;
platform: Platform;
argv: string[];
// execArgv: string[];
env: Record<string, string> & {
NODE_ENV: string;
};
/** Whether you are using Bun */
isBun: 1; // FIXME: this should actually return a boolean
/** The current git sha of Bun **/
revision: string;
// execPath: string;
// abort(): void;
chdir(directory: string): void;
cwd(): string;
exit(code?: number): void;
getgid(): number;
setgid(id: number | string): void;
getuid(): number;
setuid(id: number | string): void;
dlopen(module: { exports: any }, filename: string, flags?: number): void;
}
declare var process: Process;
declare module "process" {
var process: Process;
export = process;
}
declare module "node:process" {
import process = require("process");
export = process;
}
interface BlobInterface {
text(): Promise<string>;
arrayBuffer(): Promise<ArrayBuffer>;
json<TJSONReturnType = unknown>(): Promise<TJSONReturnType>;
}
type BlobPart = string | Blob | BufferSource | ArrayBuffer;
interface BlobPropertyBag {
/** Set a default "type" */
type?: string;
/** Not implemented in Bun yet. */
endings?: "transparent" | "native";
}
/**
* 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()
*
* 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;
entries(): IterableIterator<[string, string]>;
keys(): IterableIterator<string>;
values(): IterableIterator<string>;
forEach(
callbackfn: (value: string, key: string, parent: Headers) => void,
thisArg?: any
): void;
}
declare var Headers: {
prototype: Headers;
new (init?: HeadersInit): Headers;
};
type HeadersInit = Array<[string, string]> | Record<string, string> | Headers;
type ResponseType =
| "basic"
| "cors"
| "default"
| "error"
| "opaque"
| "opaqueredirect";
declare class Blob implements BlobInterface {
/**
* Create a new [Blob](https://developer.mozilla.org/en-US/docs/Web/API/Blob)
*
* @param `parts` - An array of strings, numbers, BufferSource, or [Blob](https://developer.mozilla.org/en-US/docs/Web/API/Blob) objects
* @param `options` - An object containing properties to be added to the [Blob](https://developer.mozilla.org/en-US/docs/Web/API/Blob)
*/
constructor(parts?: BlobPart[] | Blob, options?: BlobPropertyBag);
/**
* Create a new view **without 🚫 copying** the underlying data.
*
* Similar to [`BufferSource.subarray`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/BufferSource/subarray)
*
* @param begin The index that sets the beginning of the view.
* @param end The index that sets the end of the view.
*
*/
slice(begin?: number, end?: number): Blob;
/**
* Read the data from the blob as a string. It will be decoded from UTF-8.
*/
text(): Promise<string>;
/**
* Read the data from the blob as a ReadableStream.
*/
stream(): ReadableStream<Uint8Array>;
/**
* Read the data from the blob as an ArrayBuffer.
*
* This copies the data into a new ArrayBuffer.
*/
arrayBuffer(): Promise<ArrayBuffer>;
/**
* Read the data from the blob as a JSON object.
*
* This first decodes the data from UTF-8, then parses it as JSON.
*
*/
json<TJSONReturnType = unknown>(): Promise<TJSONReturnType>;
type: string;
size: number;
}
interface ResponseInit {
headers?: HeadersInit;
/** @default 200 */
status?: number;
/** @default "OK" */
statusText?: string;
}
/**
* Represents an HTTP [Response](https://developer.mozilla.org/en-US/docs/Web/API/Response)
*
* Use it to get the body of the response, the status code, and other information.
*
* @example
* ```ts
* const response: Response = await fetch("https://remix.run");
* await response.text();
* ```
* @example
* ```ts
* const response: Response = await fetch("https://remix.run");
* await Bun.write("remix.html", response);
* ```
*/
declare class Response implements BlobInterface {
constructor(
body?: ReadableStream | BlobPart | BlobPart[] | null,
options?: ResponseInit
);
/**
* Create a new {@link Response} with a JSON body
*
* @param body - The body of the response
* @param options - options to pass to the response
*
* @example
*
* ```ts
* const response = Response.json({hi: "there"});
* console.assert(
* await response.text(),
* `{"hi":"there"}`
* );
* ```
* -------
*
* This is syntactic sugar for:
* ```js
* new Response(JSON.stringify(body), {headers: { "Content-Type": "application/json" }})
* ```
* @link https://github.com/whatwg/fetch/issues/1389
*/
static json(body?: any, options?: ResponseInit | number): Response;
/**
* Create a new {@link Response} that redirects to url
*
* @param url - the URL to redirect to
* @param status - the HTTP status code to use for the redirect
*/
// tslint:disable-next-line:unified-signatures
static redirect(url: string, status?: number): Response;
/**
* Create a new {@link Response} that redirects to url
*
* @param url - the URL to redirect to
* @param options - options to pass to the response
*/
// tslint:disable-next-line:unified-signatures
static redirect(url: string, options?: ResponseInit): Response;
/**
* Create a new {@link Response} that has a network error
*/
static error(): Response;
/**
* HTTP [Headers](https://developer.mozilla.org/en-US/docs/Web/API/Headers) sent with the response.
*
* @example
* ```ts
* const {headers} = await fetch("https://remix.run");
* headers.get("Content-Type");
* headers.get("Content-Length");
* headers.get("Set-Cookie");
* ```
*/
readonly headers: Headers;
/**
* HTTP response body as a [ReadableStream](https://developer.mozilla.org/en-US/docs/Web/API/ReadableStream)
*
* This is part of web Streams
*
* @example
* ```ts
* const {body} = await fetch("https://remix.run");
* const reader = body.getReader();
* const {done, value} = await reader.read();
* console.log(value); // Uint8Array
* ```
*/
readonly body: ReadableStream | null;
/**
* Has the body of the response already been consumed?
*/
readonly bodyUsed: boolean;
/**
* Read the data from the Response as a string. It will be decoded from UTF-8.
*
* When the body is valid latin1, this operation is zero copy.
*/
text(): Promise<string>;
/**
* Read the data from the Response as a string. It will be decoded from UTF-8.
*
* When the body is valid latin1, this operation is zero copy.
*/
arrayBuffer(): Promise<ArrayBuffer>;
/**
* Read the data from the Response as a JSON object.
*
* This first decodes the data from UTF-8, then parses it as JSON.
*
*/
json<TJSONReturnType = unknown>(): Promise<TJSONReturnType>;
/**
* Read the data from the Response as a Blob.
*
* This allows you to reuse the underlying data.
*
* @returns Promise<Blob> - The body of the response as a {@link Blob}.
*/
blob(): Promise<Blob>;
readonly ok: boolean;
readonly redirected: boolean;
/**
* HTTP status code
*
* @example
* 200
*
* 0 for network errors
*/
readonly status: number;
readonly statusText: string;
readonly type: ResponseType;
/** HTTP url as a string */
readonly url: string;
/** Copy the Response object into a new Response, including the body */
clone(): Response;
}
type RequestCache =
| "default"
| "force-cache"
| "no-cache"
| "no-store"
| "only-if-cached"
| "reload";
type RequestCredentials = "include" | "omit" | "same-origin";
type RequestDestination =
| ""
| "audio"
| "audioworklet"
| "document"
| "embed"
| "font"
| "frame"
| "iframe"
| "image"
| "manifest"
| "object"
| "paintworklet"
| "report"
| "script"
| "sharedworker"
| "style"
| "track"
| "video"
| "worker"
| "xslt";
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 RequestInfo = Request | string;
type BodyInit = ReadableStream | XMLHttpRequestBodyInit;
type XMLHttpRequestBodyInit = Blob | BufferSource | string;
type ReadableStreamController<T> = ReadableStreamDefaultController<T>;
type ReadableStreamDefaultReadResult<T> =
| ReadableStreamDefaultReadValueResult<T>
| ReadableStreamDefaultReadDoneResult;
type ReadableStreamReader<T> = ReadableStreamDefaultReader<T>;
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.
*
* Note: as of Bun v0.0.74, this is not implemented yet.
*/
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.
*
* Note: as of Bun v0.0.74, this is not implemented yet.
*/
integrity?: string;
/**
* A boolean to set request's keepalive.
*
* Available in Bun v0.2.0 and above.
*
* This is enabled by default
*/
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.
*
* Note: as of Bun v0.0.74, this is not implemented yet.
*/
signal?: AbortSignal | null;
/**
* Can only be null. Used to disassociate request from any Window.
*
* This does nothing in Bun
*/
window?: any;
/**
* Enable or disable HTTP request timeout
*/
timeout?: boolean;
}
/**
* [`Request`](https://developer.mozilla.org/en-US/docs/Web/API/Request) represents an HTTP request.
*
* @example
* ```ts
* const request = new Request("https://remix.run/");
* await fetch(request);
* ```
*
* @example
* ```ts
* const request = new Request("https://remix.run/");
* await fetch(request);
* ```
*/
declare class Request implements BlobInterface {
constructor(requestInfo: RequestInfo, requestInit?: RequestInit);
/**
* Read or write the HTTP headers for this request.
*
* @example
* ```ts
* const request = new Request("https://remix.run/");
* request.headers.set("Content-Type", "application/json");
* request.headers.set("Accept", "application/json");
* await fetch(request);
* ```
*/
headers: Headers;
/**
* The URL (as a string) corresponding to the HTTP request
* @example
* ```ts
* const request = new Request("https://remix.run/");
* request.url; // "https://remix.run/"
* ```
*/
readonly url: string;
/**
* Consume the [`Request`](https://developer.mozilla.org/en-US/docs/Web/API/Request) body as a string. It will be decoded from UTF-8.
*
* When the body is valid latin1, this operation is zero copy.
*/
text(): Promise<string>;
/**
* Consume the [`Request`](https://developer.mozilla.org/en-US/docs/Web/API/Request) body as a {@link ReadableStream}.
*
* Streaming **outgoing** HTTP request bodies via `fetch()` is not yet supported in
* Bun.
*
* Reading **incoming** HTTP request bodies via `ReadableStream` in `Bun.serve()` is supported
* as of Bun v0.2.0.
*
*
*/
get body(): ReadableStream | null;
/**
* Consume the [`Request`](https://developer.mozilla.org/en-US/docs/Web/API/Request) body as an ArrayBuffer.
*
*/
arrayBuffer(): Promise<ArrayBuffer>;
/**
* Consume the [`Request`](https://developer.mozilla.org/en-US/docs/Web/API/Request) body as a JSON object.
*
* This first decodes the data from UTF-8, then parses it as JSON.
*
*/
json<TJSONReturnType = unknown>(): Promise<TJSONReturnType>;
/**
* Consume the [`Request`](https://developer.mozilla.org/en-US/docs/Web/API/Request) body as a `Blob`.
*
* This allows you to reuse the underlying data.
*
*/
blob(): Promise<Blob>;
/**
* 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".
*
* In Bun, this always returns "navigate".
*/
readonly destination: RequestDestination;
/**
* Returns request's subresource integrity metadata, which is a cryptographic hash of the resource being fetched. Its value consists of multiple hashes separated by whitespace. [SRI]
*
* This does nothing in Bun right now.
*/
readonly integrity: string;
/**
* Returns a boolean indicating whether or not request can outlive the global in which it was created.
*
* In Bun, this always returns false.
*/
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.
*
* Note: this is **not implemented yet**. The cake is a lie.
*/
readonly signal: AbortSignal;
/** Copy the Request object into a new Request, including the body */
clone(): Request;
}
interface Crypto {
readonly subtle: SubtleCrypto;
getRandomValues<T extends BufferSource = BufferSource>(array: T): T;
/**
* Generate a cryptographically secure random UUID.
*
* @example
*
* ```js
* crypto.randomUUID()
* '5e6adf82-f516-4468-b1e1-33d6f664d7dc'
* ```
*/
randomUUID(): string;
}
declare var crypto: Crypto;
/**
* [`atob`](https://developer.mozilla.org/en-US/docs/Web/API/atob) decodes base64 into ascii text.
*
* @param asciiText The base64 string to decode.
*/
declare function atob(encodedData: string): string;
/**
* [`btoa`](https://developer.mozilla.org/en-US/docs/Web/API/btoa) encodes ascii text into base64.
*
* @param stringToEncode The ascii text to encode.
*/
declare function btoa(stringToEncode: string): string;
/**
* An implementation of the [WHATWG Encoding Standard](https://encoding.spec.whatwg.org/) `TextEncoder` API. All
* instances of `TextEncoder` only support UTF-8 encoding.
*
* ```js
* const encoder = new TextEncoder();
* const uint8array = encoder.encode('this is some data');
* ```
*
*/
declare class TextEncoder {
/**
* The encoding supported by the `TextEncoder` instance. Always set to `'utf-8'`.
*/
readonly encoding: "utf-8";
constructor(encoding?: "utf-8");
/**
* UTF-8 encodes the `input` string and returns a `Uint8Array` containing the
* encoded bytes.
* @param [input='an empty string'] The text to encode.
*/
encode(input?: string): Uint8Array;
/**
* UTF-8 encodes the `src` string to the `dest` Uint8Array and returns an object
* containing the read Unicode code units and written UTF-8 bytes.
*
* ```js
* const encoder = new TextEncoder();
* const src = 'this is some data';
* const dest = new Uint8Array(10);
* const { read, written } = encoder.encodeInto(src, dest);
* ```
* @param src The text to encode.
* @param dest The array to hold the encode result.
*/
encodeInto(src?: string, dest?: BufferSource): EncodeIntoResult;
}
/**
* An implementation of the [WHATWG Encoding Standard](https://encoding.spec.whatwg.org/) `TextDecoder` API.
*
* ```js
* const decoder = new TextDecoder();
* const u8arr = new Uint8Array([72, 101, 108, 108, 111]);
* console.log(decoder.decode(u8arr)); // Hello
* ```
*/
declare class TextDecoder {
/**
* The encoding supported by the `TextDecoder` instance.
*/
readonly encoding: string;
/**
* The value will be `true` if decoding errors result in a `TypeError` being
* thrown.
*/
readonly fatal: boolean;
/**
* The value will be `true` if the decoding result will include the byte order
* mark.
*/
readonly ignoreBOM: boolean;
constructor(
encoding?: Encoding,
options?: { fatal?: boolean; ignoreBOM?: boolean }
);
/**
* Decodes the `input` and returns a string. If `options.stream` is `true`, any
* incomplete byte sequences occurring at the end of the `input` are buffered
* internally and emitted after the next call to `textDecoder.decode()`.
*
* If `textDecoder.fatal` is `true`, decoding errors that occur will result in a`TypeError` being thrown.
* @param input An `ArrayBuffer`, `DataView` or `BufferSource` instance containing the encoded data.
*/
decode(input?: BufferSource | ArrayBuffer): string;
}
/**
* ShadowRealms are a distinct global environment, with its own global object
* containing its own intrinsics and built-ins (standard objects that are not
* bound to global variables, like the initial value of Object.prototype).
*
*
* @example
*
* ```js
* const red = new ShadowRealm();
*
* // realms can import modules that will execute within it's own environment.
* // When the module is resolved, it captured the binding value, or creates a new
* // wrapped function that is connected to the callable binding.
* const redAdd = await red.importValue('./inside-code.js', 'add');
*
* // redAdd is a wrapped function exotic object that chains it's call to the
* // respective imported binding.
* let result = redAdd(2, 3);
*
* console.assert(result === 5); // yields true
*
* // The evaluate method can provide quick code evaluation within the constructed
* // shadowRealm without requiring any module loading, while it still requires CSP
* // relaxing.
* globalThis.someValue = 1;
* red.evaluate('globalThis.someValue = 2'); // Affects only the ShadowRealm's global
* console.assert(globalThis.someValue === 1);
*
* // The wrapped functions can also wrap other functions the other way around.
* const setUniqueValue =
* await red.importValue('./inside-code.js', 'setUniqueValue');
*
* // setUniqueValue = (cb) => (cb(globalThis.someValue) * 2);
*
* result = setUniqueValue((x) => x ** 3);
*
* console.assert(result === 16); // yields true
* ```
*/
declare class ShadowRealm {
/**
* Creates a new [ShadowRealm](https://github.com/tc39/proposal-shadowrealm/blob/main/explainer.md#introduction)
*
* @example
*
* ```js
* const red = new ShadowRealm();
*
* // realms can import modules that will execute within it's own environment.
* // When the module is resolved, it captured the binding value, or creates a new
* // wrapped function that is connected to the callable binding.
* const redAdd = await red.importValue('./inside-code.js', 'add');
*
* // redAdd is a wrapped function exotic object that chains it's call to the
* // respective imported binding.
* let result = redAdd(2, 3);
*
* console.assert(result === 5); // yields true
*
* // The evaluate method can provide quick code evaluation within the constructed
* // shadowRealm without requiring any module loading, while it still requires CSP
* // relaxing.
* globalThis.someValue = 1;
* red.evaluate('globalThis.someValue = 2'); // Affects only the ShadowRealm's global
* console.assert(globalThis.someValue === 1);
*
* // The wrapped functions can also wrap other functions the other way around.
* const setUniqueValue =
* await red.importValue('./inside-code.js', 'setUniqueValue');
*
* // setUniqueValue = (cb) => (cb(globalThis.someValue) * 2);