// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.

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

/** Deno provides extra properties on `import.meta`. These are included here
 * to ensure that these are still available when using the Deno namespace in
 * conjunction with other type libs, like `dom`.
 *
 * @category ES Modules
 */
declare interface ImportMeta {
  /** A string representation of the fully qualified module URL. When the
   * module is loaded locally, the value will be a file URL (e.g.
   * `file:///path/module.ts`).
   *
   * You can also parse the string as a URL to determine more information about
   * how the current module was loaded. For example to determine if a module was
   * local or not:
   *
   * ```ts
   * const url = new URL(import.meta.url);
   * if (url.protocol === "file:") {
   *   console.log("this module was loaded locally");
   * }
   * ```
   */
  url: string;

  /** A flag that indicates if the current module is the main module that was
   * called when starting the program under Deno.
   *
   * ```ts
   * if (import.meta.main) {
   *   // this was loaded as the main module, maybe do some bootstrapping
   * }
   * ```
   */
  main: boolean;

  /** A function that returns resolved specifier as if it would be imported
   * using `import(specifier)`.
   *
   * ```ts
   * console.log(import.meta.resolve("./foo.js"));
   * // file:///dev/foo.js
   * ```
   */
  resolve(specifier: string): string;
}

/** Deno supports [User Timing Level 3](https://w3c.github.io/user-timing)
 * which is not widely supported yet in other runtimes.
 *
 * Check out the
 * [Performance API](https://developer.mozilla.org/en-US/docs/Web/API/Performance)
 * documentation on MDN for further information about how to use the API.
 *
 * @category Performance
 */
declare interface Performance {
  /** Stores a timestamp with the associated name (a "mark"). */
  mark(markName: string, options?: PerformanceMarkOptions): PerformanceMark;

  /** Stores the `DOMHighResTimeStamp` duration between two marks along with the
   * associated name (a "measure"). */
  measure(
    measureName: string,
    options?: PerformanceMeasureOptions,
  ): PerformanceMeasure;
}

/**
 * Options which are used in conjunction with `performance.mark`. Check out the
 * MDN
 * [`performance.mark()`](https://developer.mozilla.org/en-US/docs/Web/API/Performance/mark#markoptions)
 * documentation for more details.
 *
 * @category Performance
 */
declare interface PerformanceMarkOptions {
  /** Metadata to be included in the mark. */
  // deno-lint-ignore no-explicit-any
  detail?: any;

  /** Timestamp to be used as the mark time. */
  startTime?: number;
}

/**
 * Options which are used in conjunction with `performance.measure`. Check out the
 * MDN
 * [`performance.mark()`](https://developer.mozilla.org/en-US/docs/Web/API/Performance/measure#measureoptions)
 * documentation for more details.
 *
 * @category Performance
 */
declare interface PerformanceMeasureOptions {
  /** Metadata to be included in the measure. */
  // deno-lint-ignore no-explicit-any
  detail?: any;

  /** Timestamp to be used as the start time or string to be used as start
   * mark. */
  start?: string | number;

  /** Duration between the start and end times. */
  duration?: number;

  /** Timestamp to be used as the end time or string to be used as end mark. */
  end?: string | number;
}

/** The global namespace where Deno specific, non-standard APIs are located. */
declare namespace Deno {
  /** A set of error constructors that are raised by Deno APIs.
   *
   * Can be used to provide more specific handling of failures within code
   * which is using Deno APIs. For example, handling attempting to open a file
   * which does not exist:
   *
   * ```ts
   * try {
   *   const file = await Deno.open("./some/file.txt");
   * } catch (error) {
   *   if (error instanceof Deno.errors.NotFound) {
   *     console.error("the file was not found");
   *   } else {
   *     // otherwise re-throw
   *     throw error;
   *   }
   * }
   * ```
   *
   * @category Errors
   */
  export namespace errors {
    /**
     * Raised when the underlying operating system indicates that the file
     * was not found.
     *
     * @category Errors */
    export class NotFound extends Error {}
    /**
     * Raised when the underlying operating system indicates the current user
     * which the Deno process is running under does not have the appropriate
     * permissions to a file or resource, or the user _did not_ provide required
     * `--allow-*` flag.
     *
     * @category Errors */
    export class PermissionDenied extends Error {}
    /**
     * Raised when the underlying operating system reports that a connection to
     * a resource is refused.
     *
     * @category Errors */
    export class ConnectionRefused extends Error {}
    /**
     * Raised when the underlying operating system reports that a connection has
     * been reset. With network servers, it can be a _normal_ occurrence where a
     * client will abort a connection instead of properly shutting it down.
     *
     * @category Errors */
    export class ConnectionReset extends Error {}
    /**
     * Raised when the underlying operating system reports an `ECONNABORTED`
     * error.
     *
     * @category Errors */
    export class ConnectionAborted extends Error {}
    /**
     * Raised when the underlying operating system reports an `ENOTCONN` error.
     *
     * @category Errors */
    export class NotConnected extends Error {}
    /**
     * Raised when attempting to open a server listener on an address and port
     * that already has a listener.
     *
     * @category Errors */
    export class AddrInUse extends Error {}
    /**
     * Raised when the underlying operating system reports an `EADDRNOTAVAIL`
     * error.
     *
     * @category Errors */
    export class AddrNotAvailable extends Error {}
    /**
     * Raised when trying to write to a resource and a broken pipe error occurs.
     * This can happen when trying to write directly to `stdout` or `stderr`
     * and the operating system is unable to pipe the output for a reason
     * external to the Deno runtime.
     *
     * @category Errors */
    export class BrokenPipe extends Error {}
    /**
     * Raised when trying to create a resource, like a file, that already
     * exits.
     *
     * @category Errors */
    export class AlreadyExists extends Error {}
    /**
     * Raised when an operation to returns data that is invalid for the
     * operation being performed.
     *
     * @category Errors */
    export class InvalidData extends Error {}
    /**
     * Raised when the underlying operating system reports that an I/O operation
     * has timed out (`ETIMEDOUT`).
     *
     * @category Errors */
    export class TimedOut extends Error {}
    /**
     * Raised when the underlying operating system reports an `EINTR` error. In
     * many cases, this underlying IO error will be handled internally within
     * Deno, or result in an @{link BadResource} error instead.
     *
     * @category Errors */
    export class Interrupted extends Error {}
    /**
     * Raised when expecting to write to a IO buffer resulted in zero bytes
     * being written.
     *
     * @category Errors */
    export class WriteZero extends Error {}
    /**
     * Raised when attempting to read bytes from a resource, but the EOF was
     * unexpectedly encountered.
     *
     * @category Errors */
    export class UnexpectedEof extends Error {}
    /**
     * The underlying IO resource is invalid or closed, and so the operation
     * could not be performed.
     *
     * @category Errors */
    export class BadResource extends Error {}
    /**
     * Raised in situations where when attempting to load a dynamic import,
     * too many redirects were encountered.
     *
     * @category Errors */
    export class Http extends Error {}
    /**
     * Raised when the underlying IO resource is not available because it is
     * being awaited on in another block of code.
     *
     * @category Errors */
    export class Busy extends Error {}
    /**
     * Raised when the underlying Deno API is asked to perform a function that
     * is not currently supported.
     *
     * @category Errors */
    export class NotSupported extends Error {}
  }

  /** The current process ID of this instance of the Deno CLI.
   *
   * ```ts
   * console.log(Deno.pid);
   * ```
   *
   * @category Runtime Environment
   */
  export const pid: number;

  /**
   * The process ID of parent process of this instance of the Deno CLI.
   *
   * ```ts
   * console.log(Deno.ppid);
   * ```
   *
   * @category Runtime Environment
   */
  export const ppid: number;

  /** @category Runtime Environment */
  export interface MemoryUsage {
    /** The number of bytes of the current Deno's process resident set size,
     * which is the amount of memory occupied in main memory (RAM). */
    rss: number;
    /** The total size of the heap for V8, in bytes. */
    heapTotal: number;
    /** The amount of the heap used for V8, in bytes. */
    heapUsed: number;
    /** Memory, in bytes, associated with JavaScript objects outside of the
     * JavaScript isolate. */
    external: number;
  }

  /**
   * Returns an object describing the memory usage of the Deno process and the
   * V8 subsystem measured in bytes.
   *
   * @category Runtime Environment
   */
  export function memoryUsage(): MemoryUsage;

  /**
   * Get the `hostname` of the machine the Deno process is running on.
   *
   * ```ts
   * console.log(Deno.hostname());
   * ```
   *
   * Requires `allow-sys` permission.
   *
   * @tags allow-sys
   * @category Runtime Environment
   */
  export function hostname(): string;

  /** Reflects the `NO_COLOR` environment variable at program start.
   *
   * When the value is `true`, the Deno CLI will attempt to not send color codes
   * to `stderr` or `stdout` and other command line programs should also attempt
   * to respect this value.
   *
   * See: https://no-color.org/
   *
   * @category Runtime Environment
   */
  export const noColor: boolean;

  /**
   * Options which define the permissions within a test or worker context.
   *
   * `"inherit"` ensures that all permissions of the parent process will be
   * applied to the test context. `"none"` ensures the test context has no
   * permissions. A `PermissionOptionsObject` provides a more specific
   * set of permissions to the test context.
   *
   * @category Permissions */
  export type PermissionOptions =
    | "inherit"
    | "none"
    | PermissionOptionsObject;

  /**
   * A set of options which can define the permissions within a test or worker
   * context at a highly specific level.
   *
   * @category Permissions */
  export interface PermissionOptionsObject {
    /** Specifies if the `env` permission should be requested or revoked.
     * If set to `"inherit"`, the current `env` permission will be inherited.
     * If set to `true`, the global `env` permission will be requested.
     * If set to `false`, the global `env` permission will be revoked.
     *
     * Defaults to `false`.
     */
    env?: "inherit" | boolean | string[];

    /** Specifies if the `sys` permission should be requested or revoked.
     * If set to `"inherit"`, the current `sys` permission will be inherited.
     * If set to `true`, the global `sys` permission will be requested.
     * If set to `false`, the global `sys` permission will be revoked.
     *
     * Defaults to `false`.
     */
    sys?: "inherit" | boolean | string[];

    /** Specifies if the `hrtime` permission should be requested or revoked.
     * If set to `"inherit"`, the current `hrtime` permission will be inherited.
     * If set to `true`, the global `hrtime` permission will be requested.
     * If set to `false`, the global `hrtime` permission will be revoked.
     *
     * Defaults to `false`.
     */
    hrtime?: "inherit" | boolean;

    /** Specifies if the `net` permission should be requested or revoked.
     * if set to `"inherit"`, the current `net` permission will be inherited.
     * if set to `true`, the global `net` permission will be requested.
     * if set to `false`, the global `net` permission will be revoked.
     * if set to `string[]`, the `net` permission will be requested with the
     * specified host strings with the format `"<host>[:<port>]`.
     *
     * Defaults to `false`.
     *
     * Examples:
     *
     * ```ts
     * import { assertEquals } from "https://deno.land/std/testing/asserts.ts";
     *
     * Deno.test({
     *   name: "inherit",
     *   permissions: {
     *     net: "inherit",
     *   },
     *   async fn() {
     *     const status = await Deno.permissions.query({ name: "net" })
     *     assertEquals(status.state, "granted");
     *   },
     * });
     * ```
     *
     * ```ts
     * import { assertEquals } from "https://deno.land/std/testing/asserts.ts";
     *
     * Deno.test({
     *   name: "true",
     *   permissions: {
     *     net: true,
     *   },
     *   async fn() {
     *     const status = await Deno.permissions.query({ name: "net" });
     *     assertEquals(status.state, "granted");
     *   },
     * });
     * ```
     *
     * ```ts
     * import { assertEquals } from "https://deno.land/std/testing/asserts.ts";
     *
     * Deno.test({
     *   name: "false",
     *   permissions: {
     *     net: false,
     *   },
     *   async fn() {
     *     const status = await Deno.permissions.query({ name: "net" });
     *     assertEquals(status.state, "denied");
     *   },
     * });
     * ```
     *
     * ```ts
     * import { assertEquals } from "https://deno.land/std/testing/asserts.ts";
     *
     * Deno.test({
     *   name: "localhost:8080",
     *   permissions: {
     *     net: ["localhost:8080"],
     *   },
     *   async fn() {
     *     const status = await Deno.permissions.query({ name: "net", host: "localhost:8080" });
     *     assertEquals(status.state, "granted");
     *   },
     * });
     * ```
     */
    net?: "inherit" | boolean | string[];

    /** Specifies if the `ffi` permission should be requested or revoked.
     * If set to `"inherit"`, the current `ffi` permission will be inherited.
     * If set to `true`, the global `ffi` permission will be requested.
     * If set to `false`, the global `ffi` permission will be revoked.
     *
     * Defaults to `false`.
     */
    ffi?: "inherit" | boolean | Array<string | URL>;

    /** Specifies if the `read` permission should be requested or revoked.
     * If set to `"inherit"`, the current `read` permission will be inherited.
     * If set to `true`, the global `read` permission will be requested.
     * If set to `false`, the global `read` permission will be revoked.
     * If set to `Array<string | URL>`, the `read` permission will be requested with the
     * specified file paths.
     *
     * Defaults to `false`.
     */
    read?: "inherit" | boolean | Array<string | URL>;

    /** Specifies if the `run` permission should be requested or revoked.
     * If set to `"inherit"`, the current `run` permission will be inherited.
     * If set to `true`, the global `run` permission will be requested.
     * If set to `false`, the global `run` permission will be revoked.
     *
     * Defaults to `false`.
     */
    run?: "inherit" | boolean | Array<string | URL>;

    /** Specifies if the `write` permission should be requested or revoked.
     * If set to `"inherit"`, the current `write` permission will be inherited.
     * If set to `true`, the global `write` permission will be requested.
     * If set to `false`, the global `write` permission will be revoked.
     * If set to `Array<string | URL>`, the `write` permission will be requested with the
     * specified file paths.
     *
     * Defaults to `false`.
     */
    write?: "inherit" | boolean | Array<string | URL>;
  }

  /**
   * Context that is passed to a testing function, which can be used to either
   * gain information about the current test, or register additional test
   * steps within the current test.
   *
   * @category Testing */
  export interface TestContext {
    /** The current test name. */
    name: string;
    /** The string URL of the current test. */
    origin: string;
    /** If the current test is a step of another test, the parent test context
     * will be set here. */
    parent?: TestContext;

    /** Run a sub step of the parent test or step. Returns a promise
     * that resolves to a boolean signifying if the step completed successfully.
     *
     * The returned promise never rejects unless the arguments are invalid.
     *
     * If the test was ignored the promise returns `false`.
     *
     * ```ts
     * Deno.test({
     *   name: "a parent test",
     *   async fn(t) {
     *     console.log("before the step");
     *     await t.step({
     *       name: "step 1",
     *       fn(t) {
     *         console.log("current step:", t.name);
     *       }
     *     });
     *     console.log("after the step");
     *   }
     * });
     * ```
     */
    step(definition: TestStepDefinition): Promise<boolean>;

    /** Run a sub step of the parent test or step. Returns a promise
     * that resolves to a boolean signifying if the step completed successfully.
     *
     * The returned promise never rejects unless the arguments are invalid.
     *
     * If the test was ignored the promise returns `false`.
     *
     * ```ts
     * Deno.test(
     *   "a parent test",
     *   async (t) => {
     *     console.log("before the step");
     *     await t.step(
     *       "step 1",
     *       (t) => {
     *         console.log("current step:", t.name);
     *       }
     *     );
     *     console.log("after the step");
     *   }
     * );
     * ```
     */
    step(
      name: string,
      fn: (t: TestContext) => void | Promise<void>,
    ): Promise<boolean>;
  }

  /** @category Testing */
  export interface TestStepDefinition {
    /** The test function that will be tested when this step is executed. The
     * function can take an argument which will provide information about the
     * current step's context. */
    fn: (t: TestContext) => void | Promise<void>;
    /** The name of the step. */
    name: string;
    /** If truthy the current test step will be ignored.
     *
     * This is a quick way to skip over a step, but also can be used for
     * conditional logic, like determining if an environment feature is present.
     */
    ignore?: boolean;
    /** Check that the number of async completed operations after the test step
     * is the same as number of dispatched operations. This ensures that the
     * code tested does not start async operations which it then does
     * not await. This helps in preventing logic errors and memory leaks
     * in the application code.
     *
     * Defaults to the parent test or step's value. */
    sanitizeOps?: boolean;
    /** Ensure the test step does not "leak" resources - like open files or
     * network connections - by ensuring the open resources at the start of the
     * step match the open resources at the end of the step.
     *
     * Defaults to the parent test or step's value. */
    sanitizeResources?: boolean;
    /** Ensure the test step does not prematurely cause the process to exit,
     * for example via a call to {@linkcode Deno.exit}.
     *
     * Defaults to the parent test or step's value. */
    sanitizeExit?: boolean;
  }

  /** @category Testing */
  export interface TestDefinition {
    fn: (t: TestContext) => void | Promise<void>;
    /** The name of the test. */
    name: string;
    /** If truthy the current test step will be ignored.
     *
     * It is a quick way to skip over a step, but also can be used for
     * conditional logic, like determining if an environment feature is present.
     */
    ignore?: boolean;
    /** If at least one test has `only` set to `true`, only run tests that have
     * `only` set to `true` and fail the test suite. */
    only?: boolean;
    /** Check that the number of async completed operations after the test step
     * is the same as number of dispatched operations. This ensures that the
     * code tested does not start async operations which it then does
     * not await. This helps in preventing logic errors and memory leaks
     * in the application code.
     *
     * Defaults to `true`. */
    sanitizeOps?: boolean;
    /** Ensure the test step does not "leak" resources - like open files or
     * network connections - by ensuring the open resources at the start of the
     * test match the open resources at the end of the test.
     *
     * Defaults to `true`. */
    sanitizeResources?: boolean;
    /** Ensure the test case does not prematurely cause the process to exit,
     * for example via a call to {@linkcode Deno.exit}.
     *
     * Defaults to `true`. */
    sanitizeExit?: boolean;
    /** Specifies the permissions that should be used to run the test.
     *
     * Set this to "inherit" to keep the calling runtime permissions, set this
     * to "none" to revoke all permissions, or set a more specific set of
     * permissions using a {@linkcode PermissionOptionsObject}.
     *
     * Defaults to `"inherit"`. */
    permissions?: PermissionOptions;
  }

  /** Register a test which will be run when `deno test` is used on the command
   * line and the containing module looks like a test module.
   *
   * `fn` can be async if required.
   *
   * ```ts
   * import { assertEquals } from "https://deno.land/std/testing/asserts.ts";
   *
   * Deno.test({
   *   name: "example test",
   *   fn() {
   *     assertEquals("world", "world");
   *   },
   * });
   *
   * Deno.test({
   *   name: "example ignored test",
   *   ignore: Deno.build.os === "windows",
   *   fn() {
   *     // This test is ignored only on Windows machines
   *   },
   * });
   *
   * Deno.test({
   *   name: "example async test",
   *   async fn() {
   *     const decoder = new TextDecoder("utf-8");
   *     const data = await Deno.readFile("hello_world.txt");
   *     assertEquals(decoder.decode(data), "Hello world");
   *   }
   * });
   * ```
   *
   * @category Testing
   */
  export function test(t: TestDefinition): void;

  /** Register a test which will be run when `deno test` is used on the command
   * line and the containing module looks like a test module.
   *
   * `fn` can be async if required.
   *
   * ```ts
   * import { assertEquals } from "https://deno.land/std/testing/asserts.ts";
   *
   * Deno.test("My test description", () => {
   *   assertEquals("hello", "hello");
   * });
   *
   * Deno.test("My async test description", async () => {
   *   const decoder = new TextDecoder("utf-8");
   *   const data = await Deno.readFile("hello_world.txt");
   *   assertEquals(decoder.decode(data), "Hello world");
   * });
   * ```
   *
   * @category Testing
   */
  export function test(
    name: string,
    fn: (t: TestContext) => void | Promise<void>,
  ): void;

  /** Register a test which will be run when `deno test` is used on the command
   * line and the containing module looks like a test module.
   *
   * `fn` can be async if required. Declared function must have a name.
   *
   * ```ts
   * import { assertEquals } from "https://deno.land/std/testing/asserts.ts";
   *
   * Deno.test(function myTestName() {
   *   assertEquals("hello", "hello");
   * });
   *
   * Deno.test(async function myOtherTestName() {
   *   const decoder = new TextDecoder("utf-8");
   *   const data = await Deno.readFile("hello_world.txt");
   *   assertEquals(decoder.decode(data), "Hello world");
   * });
   * ```
   *
   * @category Testing
   */
  export function test(fn: (t: TestContext) => void | Promise<void>): void;

  /** Register a test which will be run when `deno test` is used on the command
   * line and the containing module looks like a test module.
   *
   * `fn` can be async if required.
   *
   * ```ts
   * import {assert, fail, assertEquals} from "https://deno.land/std/testing/asserts.ts";
   *
   * Deno.test("My test description", { permissions: { read: true } }, (): void => {
   *   assertEquals("hello", "hello");
   * });
   *
   * Deno.test("My async test description", { permissions: { read: false } }, async (): Promise<void> => {
   *   const decoder = new TextDecoder("utf-8");
   *   const data = await Deno.readFile("hello_world.txt");
   *   assertEquals(decoder.decode(data), "Hello world");
   * });
   * ```
   *
   * @category Testing
   */
  export function test(
    name: string,
    options: Omit<TestDefinition, "fn" | "name">,
    fn: (t: TestContext) => void | Promise<void>,
  ): void;

  /** Register a test which will be run when `deno test` is used on the command
   * line and the containing module looks like a test module.
   *
   * `fn` can be async if required.
   *
   * ```ts
   * import { assertEquals } from "https://deno.land/std/testing/asserts.ts";
   *
   * Deno.test(
   *   {
   *     name: "My test description",
   *     permissions: { read: true },
   *   },
   *   () => {
   *     assertEquals("hello", "hello");
   *   },
   * );
   *
   * Deno.test(
   *   {
   *     name: "My async test description",
   *     permissions: { read: false },
   *   },
   *   async () => {
   *     const decoder = new TextDecoder("utf-8");
   *     const data = await Deno.readFile("hello_world.txt");
   *     assertEquals(decoder.decode(data), "Hello world");
   *   },
   * );
   * ```
   *
   * @category Testing
   */
  export function test(
    options: Omit<TestDefinition, "fn">,
    fn: (t: TestContext) => void | Promise<void>,
  ): void;

  /** Register a test which will be run when `deno test` is used on the command
   * line and the containing module looks like a test module.
   *
   * `fn` can be async if required. Declared function must have a name.
   *
   * ```ts
   * import { assertEquals } from "https://deno.land/std/testing/asserts.ts";
   *
   * Deno.test(
   *   { permissions: { read: true } },
   *   function myTestName() {
   *     assertEquals("hello", "hello");
   *   },
   * );
   *
   * Deno.test(
   *   { permissions: { read: false } },
   *   async function myOtherTestName() {
   *     const decoder = new TextDecoder("utf-8");
   *     const data = await Deno.readFile("hello_world.txt");
   *     assertEquals(decoder.decode(data), "Hello world");
   *   },
   * );
   * ```
   *
   * @category Testing
   */
  export function test(
    options: Omit<TestDefinition, "fn" | "name">,
    fn: (t: TestContext) => void | Promise<void>,
  ): void;

  /** Exit the Deno process with optional exit code.
   *
   * If no exit code is supplied then Deno will exit with return code of `0`.
   *
   * In worker contexts this is an alias to `self.close();`.
   *
   * ```ts
   * Deno.exit(5);
   * ```
   *
   * @category Runtime Environment
   */
  export function exit(code?: number): never;

  /** An interface containing methods to interact with the process environment
   * variables.
   *
   * @tags allow-env
   * @category Runtime Environment
   */
  export interface Env {
    /** Retrieve the value of an environment variable.
     *
     * Returns `undefined` if the supplied environment variable is not defined.
     *
     * ```ts
     * console.log(Deno.env.get("HOME"));  // e.g. outputs "/home/alice"
     * console.log(Deno.env.get("MADE_UP_VAR"));  // outputs "undefined"
     * ```
     *
     * Requires `allow-env` permission.
     *
     * @tags allow-env
     */
    get(key: string): string | undefined;

    /** Set the value of an environment variable.
     *
     * ```ts
     * Deno.env.set("SOME_VAR", "Value");
     * Deno.env.get("SOME_VAR");  // outputs "Value"
     * ```
     *
     * Requires `allow-env` permission.
     *
     * @tags allow-env
     */
    set(key: string, value: string): void;

    /** Delete the value of an environment variable.
     *
     * ```ts
     * Deno.env.set("SOME_VAR", "Value");
     * Deno.env.delete("SOME_VAR");  // outputs "undefined"
     * ```
     *
     * Requires `allow-env` permission.
     *
     * @tags allow-env
     */
    delete(key: string): void;

    /** Returns a snapshot of the environment variables at invocation as a
     * simple object of keys and values.
     *
     * ```ts
     * Deno.env.set("TEST_VAR", "A");
     * const myEnv = Deno.env.toObject();
     * console.log(myEnv.SHELL);
     * Deno.env.set("TEST_VAR", "B");
     * console.log(myEnv.TEST_VAR);  // outputs "A"
     * ```
     *
     * Requires `allow-env` permission.
     *
     * @tags allow-env
     */
    toObject(): { [index: string]: string };
  }

  /** An interface containing methods to interact with the process environment
   * variables.
   *
   * @tags allow-env
   * @category Runtime Environment
   */
  export const env: Env;

  /**
   * Returns the path to the current deno executable.
   *
   * ```ts
   * console.log(Deno.execPath());  // e.g. "/home/alice/.local/bin/deno"
   * ```
   *
   * Requires `allow-read` permission.
   *
   * @tags allow-read
   * @category Runtime Environment
   */
  export function execPath(): string;

  /**
   * Change the current working directory to the specified path.
   *
   * ```ts
   * Deno.chdir("/home/userA");
   * Deno.chdir("../userB");
   * Deno.chdir("C:\\Program Files (x86)\\Java");
   * ```
   *
   * Throws {@linkcode Deno.errors.NotFound} if directory not found.
   *
   * Throws {@linkcode Deno.errors.PermissionDenied} if the user does not have
   * operating system file access rights.
   *
   * Requires `allow-read` permission.
   *
   * @tags allow-read
   * @category Runtime Environment
   */
  export function chdir(directory: string | URL): void;

  /**
   * Return a string representing the current working directory.
   *
   * If the current directory can be reached via multiple paths (due to symbolic
   * links), `cwd()` may return any one of them.
   *
   * ```ts
   * const currentWorkingDirectory = Deno.cwd();
   * ```
   *
   * Throws {@linkcode Deno.errors.NotFound} if directory not available.
   *
   * Requires `allow-read` permission.
   *
   * @tags allow-read
   * @category Runtime Environment
   */
  export function cwd(): string;

  /**
   * Creates `newpath` as a hard link to `oldpath`.
   *
   * ```ts
   * await Deno.link("old/name", "new/name");
   * ```
   *
   * Requires `allow-read` and `allow-write` permissions.
   *
   * @tags allow-read, allow-write
   * @category File System
   */
  export function link(oldpath: string, newpath: string): Promise<void>;

  /**
   * Synchronously creates `newpath` as a hard link to `oldpath`.
   *
   * ```ts
   * Deno.linkSync("old/name", "new/name");
   * ```
   *
   * Requires `allow-read` and `allow-write` permissions.
   *
   * @tags allow-read, allow-write
   * @category File System
   */
  export function linkSync(oldpath: string, newpath: string): void;

  /**
   * A enum which defines the seek mode for IO related APIs that support
   * seeking.
   *
   * @category I/O */
  export enum SeekMode {
    /* Seek from the start of the file/resource. */
    Start = 0,
    /* Seek from the current position within the file/resource. */
    Current = 1,
    /* Seek from the end of the current file/resource. */
    End = 2,
  }

  /**
   * An abstract interface which when implemented provides an interface to read
   * bytes into an array buffer asynchronously.
   *
   * @category I/O */
  export interface Reader {
    /** Reads up to `p.byteLength` bytes into `p`. It resolves to the number of
     * bytes read (`0` < `n` <= `p.byteLength`) and rejects if any error
     * encountered. Even if `read()` resolves to `n` < `p.byteLength`, it may
     * use all of `p` as scratch space during the call. If some data is
     * available but not `p.byteLength` bytes, `read()` conventionally resolves
     * to what is available instead of waiting for more.
     *
     * When `read()` encounters end-of-file condition, it resolves to EOF
     * (`null`).
     *
     * When `read()` encounters an error, it rejects with an error.
     *
     * Callers should always process the `n` > `0` bytes returned before
     * considering the EOF (`null`). Doing so correctly handles I/O errors that
     * happen after reading some bytes and also both of the allowed EOF
     * behaviors.
     *
     * Implementations should not retain a reference to `p`.
     *
     * Use
     * [`itereateReader`](https://deno.land/std/streams/conversion.ts?s=iterateReader)
     * from
     * [`std/streams/conversion.ts`](https://deno.land/std/streams/conversion.ts)
     * to turn a `Reader` into an {@linkcode AsyncIterator}.
     */
    read(p: Uint8Array): Promise<number | null>;
  }

  /**
   * An abstract interface which when implemented provides an interface to read
   * bytes into an array buffer synchronously.
   *
   * @category I/O */
  export interface ReaderSync {
    /** Reads up to `p.byteLength` bytes into `p`. It resolves to the number
     * of bytes read (`0` < `n` <= `p.byteLength`) and rejects if any error
     * encountered. Even if `readSync()` returns `n` < `p.byteLength`, it may use
     * all of `p` as scratch space during the call. If some data is available
     * but not `p.byteLength` bytes, `readSync()` conventionally returns what is
     * available instead of waiting for more.
     *
     * When `readSync()` encounters end-of-file condition, it returns EOF
     * (`null`).
     *
     * When `readSync()` encounters an error, it throws with an error.
     *
     * Callers should always process the `n` > `0` bytes returned before
     * considering the EOF (`null`). Doing so correctly handles I/O errors that
     * happen after reading some bytes and also both of the allowed EOF
     * behaviors.
     *
     * Implementations should not retain a reference to `p`.
     *
     * Use
     * [`itereateReaderSync`](https://deno.land/std/streams/conversion.ts?s=iterateReaderSync)
     * from from
     * [`std/streams/conversion.ts`](https://deno.land/std/streams/conversion.ts)
     * to turn a `ReaderSync` into an {@linkcode Iterator}.
     */
    readSync(p: Uint8Array): number | null;
  }

  /**
   * An abstract interface which when implemented provides an interface to write
   * bytes from an array buffer to a file/resource asynchronously.
   *
   * @category I/O */
  export interface Writer {
    /** Writes `p.byteLength` bytes from `p` to the underlying data stream. It
     * resolves to the number of bytes written from `p` (`0` <= `n` <=
     * `p.byteLength`) or reject with the error encountered that caused the
     * write to stop early. `write()` must reject with a non-null error if
     * would resolve to `n` < `p.byteLength`. `write()` must not modify the
     * slice data, even temporarily.
     *
     * Implementations should not retain a reference to `p`.
     */
    write(p: Uint8Array): Promise<number>;
  }

  /**
   * An abstract interface which when implemented provides an interface to write
   * bytes from an array buffer to a file/resource synchronously.
   *
   * @category I/O */
  export interface WriterSync {
    /** Writes `p.byteLength` bytes from `p` to the underlying data
     * stream. It returns the number of bytes written from `p` (`0` <= `n`
     * <= `p.byteLength`) and any error encountered that caused the write to
     * stop early. `writeSync()` must throw a non-null error if it returns `n` <
     * `p.byteLength`. `writeSync()` must not modify the slice data, even
     * temporarily.
     *
     * Implementations should not retain a reference to `p`.
     */
    writeSync(p: Uint8Array): number;
  }

  /**
   * An abstract interface which when implemented provides an interface to close
   * files/resources that were previously opened.
   *
   * @category I/O */
  export interface Closer {
    /** Closes the resource, "freeing" the backing file/resource. */
    close(): void;
  }

  /**
   * An abstract interface which when implemented provides an interface to seek
   * within an open file/resource asynchronously.
   *
   * @category I/O */
  export interface Seeker {
    /** Seek sets the offset for the next `read()` or `write()` to offset,
     * interpreted according to `whence`: `Start` means relative to the
     * start of the file, `Current` means relative to the current offset,
     * and `End` means relative to the end. Seek resolves to the new offset
     * relative to the start of the file.
     *
     * Seeking to an offset before the start of the file is an error. Seeking to
     * any positive offset is legal, but the behavior of subsequent I/O
     * operations on the underlying object is implementation-dependent.
     *
     * It resolves with the updated offset.
     */
    seek(offset: number, whence: SeekMode): Promise<number>;
  }

  /**
   * An abstract interface which when implemented provides an interface to seek
   * within an open file/resource synchronously.
   *
   * @category I/O */
  export interface SeekerSync {
    /** Seek sets the offset for the next `readSync()` or `writeSync()` to
     * offset, interpreted according to `whence`: `Start` means relative
     * to the start of the file, `Current` means relative to the current
     * offset, and `End` means relative to the end.
     *
     * Seeking to an offset before the start of the file is an error. Seeking to
     * any positive offset is legal, but the behavior of subsequent I/O
     * operations on the underlying object is implementation-dependent.
     *
     * It returns the updated offset.
     */
    seekSync(offset: number, whence: SeekMode): number;
  }

  /**
   * Copies from `src` to `dst` until either EOF (`null`) is read from `src` or
   * an error occurs. It resolves to the number of bytes copied or rejects with
   * the first error encountered while copying.
   *
   * @deprecated Use
   * [`copy`](https://deno.land/std/streams/conversion.ts?s=copy) from
   * [`std/streams/conversion.ts`](https://deno.land/std/streams/conversion.ts)
   * instead. `Deno.copy` will be removed in the future.
   *
   * @category I/O
   *
   * @param src The source to copy from
   * @param dst The destination to copy to
   * @param options Can be used to tune size of the buffer. Default size is 32kB
   */
  export function copy(
    src: Reader,
    dst: Writer,
    options?: { bufSize?: number },
  ): Promise<number>;

  /**
   * Turns a Reader, `r`, into an async iterator.
   *
   * @deprecated Use
   * [`iterateReader`](https://deno.land/std/streams/conversion.ts?s=iterateReader)
   * from
   * [`std/streams/conversion.ts`](https://deno.land/std/streams/conversion.ts)
   * instead. `Deno.iter` will be removed in the future.
   *
   * @category I/O
   */
  export function iter(
    r: Reader,
    options?: { bufSize?: number },
  ): AsyncIterableIterator<Uint8Array>;

  /**
   * Turns a ReaderSync, `r`, into an iterator.
   *
   * @deprecated Use
   * [`iterateReaderSync`](https://deno.land/std/streams/conversion.ts?s=iterateReaderSync)
   * from
   * [`std/streams/conversion.ts`](https://deno.land/std/streams/conversion.ts)
   * instead. `Deno.iterSync` will be removed in the future.
   *
   * @category I/O
   */
  export function iterSync(
    r: ReaderSync,
    options?: {
      bufSize?: number;
    },
  ): IterableIterator<Uint8Array>;

  /** Open a file and resolve to an instance of {@linkcode Deno.FsFile}. The
   * file does not need to previously exist if using the `create` or `createNew`
   * open options. It is the caller's responsibility to close the file when
   * finished with it.
   *
   * ```ts
   * const file = await Deno.open("/foo/bar.txt", { read: true, write: true });
   * // Do work with file
   * Deno.close(file.rid);
   * ```
   *
   * Requires `allow-read` and/or `allow-write` permissions depending on
   * options.
   *
   * @tags allow-read, allow-write
   * @category File System
   */
  export function open(
    path: string | URL,
    options?: OpenOptions,
  ): Promise<FsFile>;

  /** Synchronously open a file and return an instance of
   * {@linkcode Deno.FsFile}. The file does not need to previously exist if
   * using the `create` or `createNew` open options. It is the caller's
   * responsibility to close the file when finished with it.
   *
   * ```ts
   * const file = Deno.openSync("/foo/bar.txt", { read: true, write: true });
   * // Do work with file
   * Deno.close(file.rid);
   * ```
   *
   * Requires `allow-read` and/or `allow-write` permissions depending on
   * options.
   *
   * @tags allow-read, allow-write
   * @category File System
   */
  export function openSync(path: string | URL, options?: OpenOptions): FsFile;

  /** Creates a file if none exists or truncates an existing file and resolves to
   *  an instance of {@linkcode Deno.FsFile}.
   *
   * ```ts
   * const file = await Deno.create("/foo/bar.txt");
   * ```
   *
   * Requires `allow-read` and `allow-write` permissions.
   *
   * @tags allow-read, allow-write
   * @category File System
   */
  export function create(path: string | URL): Promise<FsFile>;

  /** Creates a file if none exists or truncates an existing file and returns
   *  an instance of {@linkcode Deno.FsFile}.
   *
   * ```ts
   * const file = Deno.createSync("/foo/bar.txt");
   * ```
   *
   * Requires `allow-read` and `allow-write` permissions.
   *
   * @tags allow-read, allow-write
   * @category File System
   */
  export function createSync(path: string | URL): FsFile;

  /** Read from a resource ID (`rid`) into an array buffer (`buffer`).
   *
   * Resolves to either the number of bytes read during the operation or EOF
   * (`null`) if there was nothing more to read.
   *
   * It is possible for a read to successfully return with `0` bytes. This does
   * not indicate EOF.
   *
   * This function is one of the lowest level APIs and most users should not
   * work with this directly, but rather use
   * [`readAll()`](https://deno.land/std/streams/conversion.ts?s=readAll) from
   * [`std/streams/conversion.ts`](https://deno.land/std/streams/conversion.ts)
   * instead.
   *
   * **It is not guaranteed that the full buffer will be read in a single call.**
   *
   * ```ts
   * // if "/foo/bar.txt" contains the text "hello world":
   * const file = await Deno.open("/foo/bar.txt");
   * const buf = new Uint8Array(100);
   * const numberOfBytesRead = await Deno.read(file.rid, buf); // 11 bytes
   * const text = new TextDecoder().decode(buf);  // "hello world"
   * Deno.close(file.rid);
   * ```
   *
   * @category I/O
   */
  export function read(rid: number, buffer: Uint8Array): Promise<number | null>;

  /** Synchronously read from a resource ID (`rid`) into an array buffer
   * (`buffer`).
   *
   * Returns either the number of bytes read during the operation or EOF
   * (`null`) if there was nothing more to read.
   *
   * It is possible for a read to successfully return with `0` bytes. This does
   * not indicate EOF.
   *
   * This function is one of the lowest level APIs and most users should not
   * work with this directly, but rather use
   * [`readAllSync()`](https://deno.land/std/streams/conversion.ts?s=readAllSync)
   * from
   * [`std/streams/conversion.ts`](https://deno.land/std/streams/conversion.ts)
   * instead.
   *
   * **It is not guaranteed that the full buffer will be read in a single
   * call.**
   *
   * ```ts
   * // if "/foo/bar.txt" contains the text "hello world":
   * const file = Deno.openSync("/foo/bar.txt");
   * const buf = new Uint8Array(100);
   * const numberOfBytesRead = Deno.readSync(file.rid, buf); // 11 bytes
   * const text = new TextDecoder().decode(buf);  // "hello world"
   * Deno.close(file.rid);
   * ```
   *
   * @category I/O
   */
  export function readSync(rid: number, buffer: Uint8Array): number | null;

  /** Write to the resource ID (`rid`) the contents of the array buffer (`data`).
   *
   * Resolves to the number of bytes written. This function is one of the lowest
   * level APIs and most users should not work with this directly, but rather use
   * [`writeAll()`](https://deno.land/std/streams/conversion.ts?s=writeAll) from
   * [`std/streams/conversion.ts`](https://deno.land/std/streams/conversion.ts)
   * instead.
   *
   * **It is not guaranteed that the full buffer will be written in a single
   * call.**
   *
   * ```ts
   * const encoder = new TextEncoder();
   * const data = encoder.encode("Hello world");
   * const file = await Deno.open("/foo/bar.txt", { write: true });
   * const bytesWritten = await Deno.write(file.rid, data); // 11
   * Deno.close(file.rid);
   * ```
   *
   * @category I/O
   */
  export function write(rid: number, data: Uint8Array): Promise<number>;

  /** Synchronously write to the resource ID (`rid`) the contents of the array
   * buffer (`data`).
   *
   * Returns the number of bytes written. This function is one of the lowest
   * level APIs and most users should not work with this directly, but rather
   * use
   * [`writeAllSync()`](https://deno.land/std/streams/conversion.ts?s=writeAllSync)
   * from
   * [`std/streams/conversion.ts`](https://deno.land/std/streams/conversion.ts)
   * instead.
   *
   * **It is not guaranteed that the full buffer will be written in a single
   * call.**
   *
   * ```ts
   * const encoder = new TextEncoder();
   * const data = encoder.encode("Hello world");
   * const file = Deno.openSync("/foo/bar.txt", { write: true });
   * const bytesWritten = Deno.writeSync(file.rid, data); // 11
   * Deno.close(file.rid);
   * ```
   *
   * @category I/O
   */
  export function writeSync(rid: number, data: Uint8Array): number;

  /** Seek a resource ID (`rid`) to the given `offset` under mode given by `whence`.
   * The call resolves to the new position within the resource (bytes from the start).
   *
   * ```ts
   * // Given file.rid pointing to file with "Hello world", which is 11 bytes long:
   * const file = await Deno.open(
   *   "hello.txt",
   *   { read: true, write: true, truncate: true, create: true },
   * );
   * await Deno.write(file.rid, new TextEncoder().encode("Hello world"));
   *
   * // advance cursor 6 bytes
   * const cursorPosition = await Deno.seek(file.rid, 6, Deno.SeekMode.Start);
   * console.log(cursorPosition);  // 6
   * const buf = new Uint8Array(100);
   * await file.read(buf);
   * console.log(new TextDecoder().decode(buf)); // "world"
   * file.close();
   * ```
   *
   * The seek modes work as follows:
   *
   * ```ts
   * // Given file.rid pointing to file with "Hello world", which is 11 bytes long:
   * const file = await Deno.open(
   *   "hello.txt",
   *   { read: true, write: true, truncate: true, create: true },
   * );
   * await Deno.write(file.rid, new TextEncoder().encode("Hello world"));
   *
   * // Seek 6 bytes from the start of the file
   * console.log(await Deno.seek(file.rid, 6, Deno.SeekMode.Start)); // "6"
   * // Seek 2 more bytes from the current position
   * console.log(await Deno.seek(file.rid, 2, Deno.SeekMode.Current)); // "8"
   * // Seek backwards 2 bytes from the end of the file
   * console.log(await Deno.seek(file.rid, -2, Deno.SeekMode.End)); // "9" (e.g. 11-2)
   * file.close();
   * ```
   *
   * @category I/O
   */
  export function seek(
    rid: number,
    offset: number,
    whence: SeekMode,
  ): Promise<number>;

  /** Synchronously seek a resource ID (`rid`) to the given `offset` under mode
   * given by `whence`. The new position within the resource (bytes from the
   * start) is returned.
   *
   * ```ts
   * const file = Deno.openSync(
   *   "hello.txt",
   *   { read: true, write: true, truncate: true, create: true },
   * );
   * Deno.writeSync(file.rid, new TextEncoder().encode("Hello world"));
   *
   * // advance cursor 6 bytes
   * const cursorPosition = Deno.seekSync(file.rid, 6, Deno.SeekMode.Start);
   * console.log(cursorPosition);  // 6
   * const buf = new Uint8Array(100);
   * file.readSync(buf);
   * console.log(new TextDecoder().decode(buf)); // "world"
   * file.close();
   * ```
   *
   * The seek modes work as follows:
   *
   * ```ts
   * // Given file.rid pointing to file with "Hello world", which is 11 bytes long:
   * const file = Deno.openSync(
   *   "hello.txt",
   *   { read: true, write: true, truncate: true, create: true },
   * );
   * Deno.writeSync(file.rid, new TextEncoder().encode("Hello world"));
   *
   * // Seek 6 bytes from the start of the file
   * console.log(Deno.seekSync(file.rid, 6, Deno.SeekMode.Start)); // "6"
   * // Seek 2 more bytes from the current position
   * console.log(Deno.seekSync(file.rid, 2, Deno.SeekMode.Current)); // "8"
   * // Seek backwards 2 bytes from the end of the file
   * console.log(Deno.seekSync(file.rid, -2, Deno.SeekMode.End)); // "9" (e.g. 11-2)
   * file.close();
   * ```
   *
   * @category I/O
   */
  export function seekSync(
    rid: number,
    offset: number,
    whence: SeekMode,
  ): number;

  /**
   * Flushes any pending data and metadata operations of the given file stream
   * to disk.
   *
   * ```ts
   * const file = await Deno.open(
   *   "my_file.txt",
   *   { read: true, write: true, create: true },
   * );
   * await Deno.write(file.rid, new TextEncoder().encode("Hello World"));
   * await Deno.ftruncate(file.rid, 1);
   * await Deno.fsync(file.rid);
   * console.log(new TextDecoder().decode(await Deno.readFile("my_file.txt"))); // H
   * ```
   *
   * @category I/O
   */
  export function fsync(rid: number): Promise<void>;

  /**
   * Synchronously flushes any pending data and metadata operations of the given
   * file stream to disk.
   *
   * ```ts
   * const file = Deno.openSync(
   *   "my_file.txt",
   *   { read: true, write: true, create: true },
   * );
   * Deno.writeSync(file.rid, new TextEncoder().encode("Hello World"));
   * Deno.ftruncateSync(file.rid, 1);
   * Deno.fsyncSync(file.rid);
   * console.log(new TextDecoder().decode(Deno.readFileSync("my_file.txt"))); // H
   * ```
   *
   * @category I/O
   */
  export function fsyncSync(rid: number): void;

  /**
   * Flushes any pending data operations of the given file stream to disk.
   *  ```ts
   * const file = await Deno.open(
   *   "my_file.txt",
   *   { read: true, write: true, create: true },
   * );
   * await Deno.write(file.rid, new TextEncoder().encode("Hello World"));
   * await Deno.fdatasync(file.rid);
   * console.log(new TextDecoder().decode(await Deno.readFile("my_file.txt"))); // Hello World
   * ```
   *
   * @category I/O
   */
  export function fdatasync(rid: number): Promise<void>;

  /**
   * Synchronously flushes any pending data operations of the given file stream
   * to disk.
   *
   *  ```ts
   * const file = Deno.openSync(
   *   "my_file.txt",
   *   { read: true, write: true, create: true },
   * );
   * Deno.writeSync(file.rid, new TextEncoder().encode("Hello World"));
   * Deno.fdatasyncSync(file.rid);
   * console.log(new TextDecoder().decode(Deno.readFileSync("my_file.txt"))); // Hello World
   * ```
   *
   * @category I/O
   */
  export function fdatasyncSync(rid: number): void;

  /** Close the given resource ID (`rid`) which has been previously opened, such
   * as via opening or creating a file. Closing a file when you are finished
   * with it is important to avoid leaking resources.
   *
   * ```ts
   * const file = await Deno.open("my_file.txt");
   * // do work with "file" object
   * Deno.close(file.rid);
   * ```
   *
   * @category I/O
   */
  export function close(rid: number): void;

  /** The Deno abstraction for reading and writing files.
   *
   * This is the most straight forward way of handling files within Deno and is
   * recommended over using the discreet functions within the `Deno` namespace.
   *
   * ```ts
   * const file = await Deno.open("/foo/bar.txt", { read: true });
   * const fileInfo = await file.stat();
   * if (fileInfo.isFile) {
   *   const buf = new Uint8Array(100);
   *   const numberOfBytesRead = await file.read(buf); // 11 bytes
   *   const text = new TextDecoder().decode(buf);  // "hello world"
   * }
   * file.close();
   * ```
   *
   * @category File System
   */
  export class FsFile
    implements
      Reader,
      ReaderSync,
      Writer,
      WriterSync,
      Seeker,
      SeekerSync,
      Closer {
    /** The resource ID associated with the file instance. The resource ID
     * should be considered an opaque reference to resource. */
    readonly rid: number;
    /** A {@linkcode ReadableStream} instance representing to the byte contents
     * of the file. This makes it easy to interoperate with other web streams
     * based APIs.
     *
     * ```ts
     * const file = await Deno.open("my_file.txt", { read: true });
     * const decoder = new TextDecoder();
     * for await (const chunk of file.readable) {
     *   console.log(decoder.decode(chunk));
     * }
     * file.close();
     * ```
     */
    readonly readable: ReadableStream<Uint8Array>;
    /** A {@linkcode WritableStream} instance to write the contents of the
     * file. This makes it easy to interoperate with other web streams based
     * APIs.
     *
     * ```ts
     * const items = ["hello", "world"];
     * const file = await Deno.open("my_file.txt", { write: true });
     * const encoder = new TextEncoder();
     * const writer = file.writable.getWriter();
     * for (const item of items) {
     *   await writer.write(encoder.encode(item));
     * }
     * file.close();
     * ```
     */
    readonly writable: WritableStream<Uint8Array>;
    /** The constructor which takes a resource ID. Generally `FsFile` should
     * not be constructed directly. Instead use {@linkcode Deno.open} or
     * {@linkcode Deno.openSync} to create a new instance of `FsFile`. */
    constructor(rid: number);
    /** Write the contents of the array buffer (`p`) to the file.
     *
     * Resolves to the number of bytes written.
     *
     * **It is not guaranteed that the full buffer will be written in a single
     * call.**
     *
     * ```ts
     * const encoder = new TextEncoder();
     * const data = encoder.encode("Hello world");
     * const file = await Deno.open("/foo/bar.txt", { write: true });
     * const bytesWritten = await file.write(data); // 11
     * file.close();
     * ```
     *
     * @category I/O
     */
    write(p: Uint8Array): Promise<number>;
    /** Synchronously write the contents of the array buffer (`p`) to the file.
     *
     * Returns the number of bytes written.
     *
     * **It is not guaranteed that the full buffer will be written in a single
     * call.**
     *
     * ```ts
     * const encoder = new TextEncoder();
     * const data = encoder.encode("Hello world");
     * const file = Deno.openSync("/foo/bar.txt", { write: true });
     * const bytesWritten = file.writeSync(data); // 11
     * file.close();
     * ```
     */
    writeSync(p: Uint8Array): number;
    /** Truncates (or extends) the file to reach the specified `len`. If `len`
     * is not specified, then the entire file contents are truncated.
     *
     * ### Truncate the entire file
     *
     * ```ts
     * const file = await Deno.open("my_file.txt", { write: true });
     * await file.truncate();
     * file.close();
     * ```
     *
     * ### Truncate part of the file
     *
     * ```ts
     * // if "my_file.txt" contains the text "hello world":
     * const file = await Deno.open("my_file.txt", { write: true });
     * await file.truncate(7);
     * const buf = new Uint8Array(100);
     * await file.read(buf);
     * const text = new TextDecoder().decode(buf); // "hello w"
     * file.close();
     * ```
     */
    truncate(len?: number): Promise<void>;
    /** Synchronously truncates (or extends) the file to reach the specified
     * `len`. If `len` is not specified, then the entire file contents are
     * truncated.
     *
     * ### Truncate the entire file
     *
     * ```ts
     * const file = Deno.openSync("my_file.txt", { write: true });
     * file.truncateSync();
     * file.close();
     * ```
     *
     * ### Truncate part of the file
     *
     * ```ts
     * // if "my_file.txt" contains the text "hello world":
     * const file = Deno.openSync("my_file.txt", { write: true });
     * file.truncateSync(7);
     * const buf = new Uint8Array(100);
     * file.readSync(buf);
     * const text = new TextDecoder().decode(buf); // "hello w"
     * file.close();
     * ```
     */
    truncateSync(len?: number): void;
    /** Read the file into an array buffer (`p`).
     *
     * Resolves to either the number of bytes read during the operation or EOF
     * (`null`) if there was nothing more to read.
     *
     * It is possible for a read to successfully return with `0` bytes. This
     * does not indicate EOF.
     *
     * **It is not guaranteed that the full buffer will be read in a single
     * call.**
     *
     * ```ts
     * // if "/foo/bar.txt" contains the text "hello world":
     * const file = await Deno.open("/foo/bar.txt");
     * const buf = new Uint8Array(100);
     * const numberOfBytesRead = await file.read(buf); // 11 bytes
     * const text = new TextDecoder().decode(buf);  // "hello world"
     * file.close();
     * ```
     */
    read(p: Uint8Array): Promise<number | null>;
    /** Synchronously read from the file into an array buffer (`p`).
     *
     * Returns either the number of bytes read during the operation or EOF
     * (`null`) if there was nothing more to read.
     *
     * It is possible for a read to successfully return with `0` bytes. This
     * does not indicate EOF.
     *
     * **It is not guaranteed that the full buffer will be read in a single
     * call.**
     *
     * ```ts
     * // if "/foo/bar.txt" contains the text "hello world":
     * const file = Deno.openSync("/foo/bar.txt");
     * const buf = new Uint8Array(100);
     * const numberOfBytesRead = file.readSync(buf); // 11 bytes
     * const text = new TextDecoder().decode(buf);  // "hello world"
     * file.close();
     * ```
     */
    readSync(p: Uint8Array): number | null;
    /** Seek to the given `offset` under mode given by `whence`. The call
     * resolves to the new position within the resource (bytes from the start).
     *
     * ```ts
     * // Given file pointing to file with "Hello world", which is 11 bytes long:
     * const file = await Deno.open(
     *   "hello.txt",
     *   { read: true, write: true, truncate: true, create: true },
     * );
     * await file.write(new TextEncoder().encode("Hello world"));
     *
     * // advance cursor 6 bytes
     * const cursorPosition = await file.seek(6, Deno.SeekMode.Start);
     * console.log(cursorPosition);  // 6
     * const buf = new Uint8Array(100);
     * await file.read(buf);
     * console.log(new TextDecoder().decode(buf)); // "world"
     * file.close();
     * ```
     *
     * The seek modes work as follows:
     *
     * ```ts
     * // Given file.rid pointing to file with "Hello world", which is 11 bytes long:
     * const file = await Deno.open(
     *   "hello.txt",
     *   { read: true, write: true, truncate: true, create: true },
     * );
     * await file.write(new TextEncoder().encode("Hello world"));
     *
     * // Seek 6 bytes from the start of the file
     * console.log(await file.seek(6, Deno.SeekMode.Start)); // "6"
     * // Seek 2 more bytes from the current position
     * console.log(await file.seek(2, Deno.SeekMode.Current)); // "8"
     * // Seek backwards 2 bytes from the end of the file
     * console.log(await file.seek(-2, Deno.SeekMode.End)); // "9" (e.g. 11-2)
     * ```
     */
    seek(offset: number, whence: SeekMode): Promise<number>;
    /** Synchronously seek to the given `offset` under mode given by `whence`.
     * The new position within the resource (bytes from the start) is returned.
     *
     * ```ts
     * const file = Deno.openSync(
     *   "hello.txt",
     *   { read: true, write: true, truncate: true, create: true },
     * );
     * file.writeSync(new TextEncoder().encode("Hello world"));
     *
     * // advance cursor 6 bytes
     * const cursorPosition = file.seekSync(6, Deno.SeekMode.Start);
     * console.log(cursorPosition);  // 6
     * const buf = new Uint8Array(100);
     * file.readSync(buf);
     * console.log(new TextDecoder().decode(buf)); // "world"
     * file.close();
     * ```
     *
     * The seek modes work as follows:
     *
     * ```ts
     * // Given file.rid pointing to file with "Hello world", which is 11 bytes long:
     * const file = Deno.openSync(
     *   "hello.txt",
     *   { read: true, write: true, truncate: true, create: true },
     * );
     * file.writeSync(new TextEncoder().encode("Hello world"));
     *
     * // Seek 6 bytes from the start of the file
     * console.log(file.seekSync(6, Deno.SeekMode.Start)); // "6"
     * // Seek 2 more bytes from the current position
     * console.log(file.seekSync(2, Deno.SeekMode.Current)); // "8"
     * // Seek backwards 2 bytes from the end of the file
     * console.log(file.seekSync(-2, Deno.SeekMode.End)); // "9" (e.g. 11-2)
     * file.close();
     * ```
     */
    seekSync(offset: number, whence: SeekMode): number;
    /** Resolves to a {@linkcode Deno.FileInfo} for the file.
     *
     * ```ts
     * import { assert } from "https://deno.land/std/testing/asserts.ts";
     *
     * const file = await Deno.open("hello.txt");
     * const fileInfo = await file.stat();
     * assert(fileInfo.isFile);
     * file.close();
     * ```
     */
    stat(): Promise<FileInfo>;
    /** Synchronously returns a {@linkcode Deno.FileInfo} for the file.
     *
     * ```ts
     * import { assert } from "https://deno.land/std/testing/asserts.ts";
     *
     * const file = Deno.openSync("hello.txt")
     * const fileInfo = file.statSync();
     * assert(fileInfo.isFile);
     * file.close();
     * ```
     */
    statSync(): FileInfo;
    /** Close the file. Closing a file when you are finished with it is
     * important to avoid leaking resources.
     *
     * ```ts
     * const file = await Deno.open("my_file.txt");
     * // do work with "file" object
     * file.close();
     * ```
     */
    close(): void;
  }

  /**
   * The Deno abstraction for reading and writing files.
   *
   * @deprecated Use {@linkcode Deno.FsFile} instead. `Deno.File` will be
   *   removed in the future.
   * @category File System
   */
  export const File: typeof FsFile;

  /** **UNSTABLE**: new API, yet to be vetted.
   *
   *  @category I/O */
  export interface SetRawOptions {
    cbreak: boolean;
  }

  /** A reference to `stdin` which can be used to read directly from `stdin`.
   * It implements the Deno specific {@linkcode Reader}, {@linkcode ReaderSync},
   * and {@linkcode Closer} interfaces as well as provides a
   * {@linkcode ReadableStream} interface.
   *
   * ### Reading chunks from the readable stream
   *
   * ```ts
   * const decoder = new TextDecoder();
   * for await (const chunk of Deno.stdin.readable) {
   *   const text = decoder.decode(chunk);
   *   // do something with the text
   * }
   * ```
   *
   * @category I/O
   */
  export const stdin: Reader & ReaderSync & Closer & {
    /** The resource ID assigned to `stdin`. This can be used with the discreet
     * I/O functions in the `Deno` namespace. */
    readonly rid: number;
    /** A readable stream interface to `stdin`. */
    readonly readable: ReadableStream<Uint8Array>;
    /** **UNSTABLE**: new API, yet to be vetted.
     *
     * Set TTY to be under raw mode or not. In raw mode, characters are read and
     * returned as is, without being processed. All special processing of
     * characters by the terminal is disabled, including echoing input
     * characters. Reading from a TTY device in raw mode is faster than reading
     * from a TTY device in canonical mode.
     *
     * The `cbreak` option can be used to indicate that characters that
     * correspond to a signal should still be generated. When disabling raw
     * mode, this option is ignored. This functionality currently only works on
     * Linux and Mac OS.
     *
     * ```ts
     * Deno.stdin.setRaw(true, { cbreak: true });
     * ```
     *
     * @category I/O
     */
    setRaw(mode: boolean, options?: SetRawOptions): void;
  };
  /** A reference to `stdout` which can be used to write directly to `stdout`.
   * It implements the Deno specific {@linkcode Writer}, {@linkcode WriterSync},
   * and {@linkcode Closer} interfaces as well as provides a
   * {@linkcode WritableStream} interface.
   *
   * These are low level constructs, and the {@linkcode console} interface is a
   * more straight forward way to interact with `stdout` and `stderr`.
   *
   * @category I/O
   */
  export const stdout: Writer & WriterSync & Closer & {
    /** The resource ID assigned to `stdout`. This can be used with the discreet
     * I/O functions in the `Deno` namespace. */
    readonly rid: number;
    /** A writable stream interface to `stdout`. */
    readonly writable: WritableStream<Uint8Array>;
  };
  /** A reference to `stderr` which can be used to write directly to `stderr`.
   * It implements the Deno specific {@linkcode Writer}, {@linkcode WriterSync},
   * and {@linkcode Closer} interfaces as well as provides a
   * {@linkcode WritableStream} interface.
   *
   * These are low level constructs, and the {@linkcode console} interface is a
   * more straight forward way to interact with `stdout` and `stderr`.
   *
   * @category I/O
   */
  export const stderr: Writer & WriterSync & Closer & {
    /** The resource ID assigned to `stderr`. This can be used with the discreet
     * I/O functions in the `Deno` namespace. */
    readonly rid: number;
    /** A writable stream interface to `stderr`. */
    readonly writable: WritableStream<Uint8Array>;
  };

  /**
   * Options which can be set when doing {@linkcode Deno.open} and
   * {@linkcode Deno.openSync}.
   *
   * @category File System */
  export interface OpenOptions {
    /** Sets the option for read access. This option, when `true`, means that
     * the file should be read-able if opened. */
    read?: boolean;
    /** Sets the option for write access. This option, when `true`, means that
     * the file should be write-able if opened. If the file already exists,
     * any write calls on it will overwrite its contents, by default without
     * truncating it. */
    write?: boolean;
    /** Sets the option for the append mode. This option, when `true`, means
     * that writes will append to a file instead of overwriting previous
     * contents.
     *
     * Note that setting `{ write: true, append: true }` has the same effect as
     * setting only `{ append: true }`. */
    append?: boolean;
    /** Sets the option for truncating a previous file. If a file is
     * successfully opened with this option set it will truncate the file to `0`
     * size if it already exists. The file must be opened with write access
     * for truncate to work. */
    truncate?: boolean;
    /** Sets the option to allow creating a new file, if one doesn't already
     * exist at the specified path. Requires write or append access to be
     * used. */
    create?: boolean;
    /** Defaults to `false`. If set to `true`, no file, directory, or symlink is
     * allowed to exist at the target location. Requires write or append
     * access to be used. When createNew is set to `true`, create and truncate
     * are ignored. */
    createNew?: boolean;
    /** Permissions to use if creating the file (defaults to `0o666`, before
     * the process's umask).
     *
     * Ignored on Windows. */
    mode?: number;
  }

  /**
   * Options which can be set when using {@linkcode Deno.readFile} or
   * {@linkcode Deno.readFileSync}.
   *
   * @category File System */
  export interface ReadFileOptions {
    /**
     * An abort signal to allow cancellation of the file read operation.
     * If the signal becomes aborted the readFile operation will be stopped
     * and the promise returned will be rejected with an AbortError.
     */
    signal?: AbortSignal;
  }

  /**
   *  Check if a given resource id (`rid`) is a TTY (a terminal).
   *
   * ```ts
   * // This example is system and context specific
   * const nonTTYRid = Deno.openSync("my_file.txt").rid;
   * const ttyRid = Deno.openSync("/dev/tty6").rid;
   * console.log(Deno.isatty(nonTTYRid)); // false
   * console.log(Deno.isatty(ttyRid)); // true
   * Deno.close(nonTTYRid);
   * Deno.close(ttyRid);
   * ```
   *
   * @category I/O
   */
  export function isatty(rid: number): boolean;

  /**
   * A variable-sized buffer of bytes with `read()` and `write()` methods.
   *
   * @deprecated Use [`Buffer`](https://deno.land/std/io/buffer.ts?s=Buffer)
   *   from [`std/io/buffer.ts`](https://deno.land/std/io/buffer.ts) instead.
   *   `Deno.Buffer` will be removed in the future.
   *
   * @category I/O
   */
  export class Buffer implements Reader, ReaderSync, Writer, WriterSync {
    constructor(ab?: ArrayBuffer);
    /** Returns a slice holding the unread portion of the buffer.
     *
     * The slice is valid for use only until the next buffer modification (that
     * is, only until the next call to a method like `read()`, `write()`,
     * `reset()`, or `truncate()`). If `options.copy` is false the slice aliases the buffer content at
     * least until the next buffer modification, so immediate changes to the
     * slice will affect the result of future reads.
     * @param options Defaults to `{ copy: true }`
     */
    bytes(options?: { copy?: boolean }): Uint8Array;
    /** Returns whether the unread portion of the buffer is empty. */
    empty(): boolean;
    /** A read only number of bytes of the unread portion of the buffer. */
    readonly length: number;
    /** The read only capacity of the buffer's underlying byte slice, that is,
     * the total space allocated for the buffer's data. */
    readonly capacity: number;
    /** Discards all but the first `n` unread bytes from the buffer but
     * continues to use the same allocated storage. It throws if `n` is
     * negative or greater than the length of the buffer. */
    truncate(n: number): void;
    /** Resets the buffer to be empty, but it retains the underlying storage for
     * use by future writes. `.reset()` is the same as `.truncate(0)`. */
    reset(): void;
    /** Reads the next `p.length` bytes from the buffer or until the buffer is
     * drained. Returns the number of bytes read. If the buffer has no data to
     * return, the return is EOF (`null`). */
    readSync(p: Uint8Array): number | null;
    /** Reads the next `p.length` bytes from the buffer or until the buffer is
     * drained. Resolves to the number of bytes read. If the buffer has no
     * data to return, resolves to EOF (`null`).
     *
     * NOTE: This methods reads bytes synchronously; it's provided for
     * compatibility with `Reader` interfaces.
     */
    read(p: Uint8Array): Promise<number | null>;
    writeSync(p: Uint8Array): number;
    /** NOTE: This methods writes bytes synchronously; it's provided for
     * compatibility with `Writer` interface. */
    write(p: Uint8Array): Promise<number>;
    /** Grows the buffer's capacity, if necessary, to guarantee space for
     * another `n` bytes. After `.grow(n)`, at least `n` bytes can be written to
     * the buffer without another allocation. If `n` is negative, `.grow()` will
     * throw. If the buffer can't grow it will throw an error.
     *
     * Based on Go Lang's
     * [Buffer.Grow](https://golang.org/pkg/bytes/#Buffer.Grow). */
    grow(n: number): void;
    /** Reads data from `r` until EOF (`null`) and appends it to the buffer,
     * growing the buffer as needed. It resolves to the number of bytes read.
     * If the buffer becomes too large, `.readFrom()` will reject with an error.
     *
     * Based on Go Lang's
     * [Buffer.ReadFrom](https://golang.org/pkg/bytes/#Buffer.ReadFrom). */
    readFrom(r: Reader): Promise<number>;
    /** Reads data from `r` until EOF (`null`) and appends it to the buffer,
     * growing the buffer as needed. It returns the number of bytes read. If the
     * buffer becomes too large, `.readFromSync()` will throw an error.
     *
     * Based on Go Lang's
     * [Buffer.ReadFrom](https://golang.org/pkg/bytes/#Buffer.ReadFrom). */
    readFromSync(r: ReaderSync): number;
  }

  /**
   * Read Reader `r` until EOF (`null`) and resolve to the content as
   * Uint8Array`.
   *
   * @deprecated Use
   *   [`readAll`](https://deno.land/std/streams/conversion.ts?s=readAll) from
   *   [`std/streams/conversion.ts`](https://deno.land/std/streams/conversion.ts)
   *   instead. `Deno.readAll` will be removed in the future.
   *
   * @category I/O
   */
  export function readAll(r: Reader): Promise<Uint8Array>;

  /**
   * Synchronously reads Reader `r` until EOF (`null`) and returns the content
   * as `Uint8Array`.
   *
   * @deprecated Use
   *   [`readAllSync`](https://deno.land/std/streams/conversion.ts?s=readAllSync)
   *   from
   *   [`std/streams/conversion.ts`](https://deno.land/std/streams/conversion.ts)
   *   instead. `Deno.readAllSync` will be removed in the future.
   *
   * @category I/O
   */
  export function readAllSync(r: ReaderSync): Uint8Array;

  /**
   * Write all the content of the array buffer (`arr`) to the writer (`w`).
   *
   * @deprecated Use
   *   [`writeAll`](https://deno.land/std/streams/conversion.ts?s=writeAll) from
   *   [`std/streams/conversion.ts`](https://deno.land/std/streams/conversion.ts)
   *   instead. `Deno.writeAll` will be removed in the future.
   *
   * @category I/O
   */
  export function writeAll(w: Writer, arr: Uint8Array): Promise<void>;

  /**
   * Synchronously write all the content of the array buffer (`arr`) to the
   * writer (`w`).
   *
   * @deprecated Use
   *   [`writeAllSync`](https://deno.land/std/streams/conversion.ts?s=writeAllSync)
   *   from
   *   [`std/streams/conversion.ts`](https://deno.land/std/streams/conversion.ts)
   *   instead. `Deno.writeAllSync` will be removed in the future.
   *
   * @category I/O
   */
  export function writeAllSync(w: WriterSync, arr: Uint8Array): void;

  /**
   * Options which can be set when using {@linkcode Deno.mkdir} and
   * {@linkcode Deno.mkdirSync}.
   *
   * @category File System */
  export interface MkdirOptions {
    /** Defaults to `false`. If set to `true`, means that any intermediate
     * directories will also be created (as with the shell command `mkdir -p`).
     *
     * Intermediate directories are created with the same permissions.
     *
     * When recursive is set to `true`, succeeds silently (without changing any
     * permissions) if a directory already exists at the path, or if the path
     * is a symlink to an existing directory. */
    recursive?: boolean;
    /** Permissions to use when creating the directory (defaults to `0o777`,
     * before the process's umask).
     *
     * Ignored on Windows. */
    mode?: number;
  }

  /** Creates a new directory with the specified path.
   *
   * ```ts
   * await Deno.mkdir("new_dir");
   * await Deno.mkdir("nested/directories", { recursive: true });
   * await Deno.mkdir("restricted_access_dir", { mode: 0o700 });
   * ```
   *
   * Defaults to throwing error if the directory already exists.
   *
   * Requires `allow-write` permission.
   *
   * @tags allow-write
   * @category File System
   */
  export function mkdir(
    path: string | URL,
    options?: MkdirOptions,
  ): Promise<void>;

  /** Synchronously creates a new directory with the specified path.
   *
   * ```ts
   * Deno.mkdirSync("new_dir");
   * Deno.mkdirSync("nested/directories", { recursive: true });
   * Deno.mkdirSync("restricted_access_dir", { mode: 0o700 });
   * ```
   *
   * Defaults to throwing error if the directory already exists.
   *
   * Requires `allow-write` permission.
   *
   * @tags allow-write
   * @category File System
   */
  export function mkdirSync(path: string | URL, options?: MkdirOptions): void;

  /**
   * Options which can be set when using {@linkcode Deno.makeTempDir},
   * {@linkcode Deno.makeTempDirSync}, {@linkcode Deno.makeTempFile}, and
   * {@linkcode Deno.makeTempFileSync}.
   *
   * @category File System */
  export interface MakeTempOptions {
    /** Directory where the temporary directory should be created (defaults to
     * the env variable `TMPDIR`, or the system's default, usually `/tmp`).
     *
     * Note that if the passed `dir` is relative, the path returned by
     * `makeTempFile()` and `makeTempDir()` will also be relative. Be mindful of
     * this when changing working directory. */
    dir?: string;
    /** String that should precede the random portion of the temporary
     * directory's name. */
    prefix?: string;
    /** String that should follow the random portion of the temporary
     * directory's name. */
    suffix?: string;
  }

  /** Creates a new temporary directory in the default directory for temporary
   * files, unless `dir` is specified. Other optional options include
   * prefixing and suffixing the directory name with `prefix` and `suffix`
   * respectively.
   *
   * This call resolves to the full path to the newly created directory.
   *
   * Multiple programs calling this function simultaneously will create different
   * directories. It is the caller's responsibility to remove the directory when
   * no longer needed.
   *
   * ```ts
   * const tempDirName0 = await Deno.makeTempDir();  // e.g. /tmp/2894ea76
   * const tempDirName1 = await Deno.makeTempDir({ prefix: 'my_temp' }); // e.g. /tmp/my_temp339c944d
   * ```
   *
   * Requires `allow-write` permission.
   *
   * @tags allow-write
   * @category File System
   */
  // TODO(ry) Doesn't check permissions.
  export function makeTempDir(options?: MakeTempOptions): Promise<string>;

  /** Synchronously creates a new temporary directory in the default directory
   * for temporary files, unless `dir` is specified. Other optional options
   * include prefixing and suffixing the directory name with `prefix` and
   * `suffix` respectively.
   *
   * The full path to the newly created directory is returned.
   *
   * Multiple programs calling this function simultaneously will create different
   * directories. It is the caller's responsibility to remove the directory when
   * no longer needed.
   *
   * ```ts
   * const tempDirName0 = Deno.makeTempDirSync();  // e.g. /tmp/2894ea76
   * const tempDirName1 = Deno.makeTempDirSync({ prefix: 'my_temp' });  // e.g. /tmp/my_temp339c944d
   * ```
   *
   * Requires `allow-write` permission.
   *
   * @tags allow-write
   * @category File System
   */
  // TODO(ry) Doesn't check permissions.
  export function makeTempDirSync(options?: MakeTempOptions): string;

  /** Creates a new temporary file in the default directory for temporary
   * files, unless `dir` is specified.
   *
   * Other options include prefixing and suffixing the directory name with
   * `prefix` and `suffix` respectively.
   *
   * This call resolves to the full path to the newly created file.
   *
   * Multiple programs calling this function simultaneously will create
   * different files. It is the caller's responsibility to remove the file when
   * no longer needed.
   *
   * ```ts
   * const tmpFileName0 = await Deno.makeTempFile();  // e.g. /tmp/419e0bf2
   * const tmpFileName1 = await Deno.makeTempFile({ prefix: 'my_temp' });  // e.g. /tmp/my_temp754d3098
   * ```
   *
   * Requires `allow-write` permission.
   *
   * @tags allow-write
   * @category File System
   */
  export function makeTempFile(options?: MakeTempOptions): Promise<string>;

  /** Synchronously creates a new temporary file in the default directory for
   * temporary files, unless `dir` is specified.
   *
   * Other options include prefixing and suffixing the directory name with
   * `prefix` and `suffix` respectively.
   *
   * The full path to the newly created file is returned.
   *
   * Multiple programs calling this function simultaneously will create
   * different files. It is the caller's responsibility to remove the file when
   * no longer needed.
   *
   * ```ts
   * const tempFileName0 = Deno.makeTempFileSync(); // e.g. /tmp/419e0bf2
   * const tempFileName1 = Deno.makeTempFileSync({ prefix: 'my_temp' });  // e.g. /tmp/my_temp754d3098
   * ```
   *
   * Requires `allow-write` permission.
   *
   * @tags allow-write
   * @category File System
   */
  export function makeTempFileSync(options?: MakeTempOptions): string;

  /** Changes the permission of a specific file/directory of specified path.
   * Ignores the process's umask.
   *
   * ```ts
   * await Deno.chmod("/path/to/file", 0o666);
   * ```
   *
   * The mode is a sequence of 3 octal numbers. The first/left-most number
   * specifies the permissions for the owner. The second number specifies the
   * permissions for the group. The last/right-most number specifies the
   * permissions for others. For example, with a mode of 0o764, the owner (7)
   * can read/write/execute, the group (6) can read/write and everyone else (4)
   * can read only.
   *
   * | Number | Description |
   * | ------ | ----------- |
   * | 7      | read, write, and execute |
   * | 6      | read and write |
   * | 5      | read and execute |
   * | 4      | read only |
   * | 3      | write and execute |
   * | 2      | write only |
   * | 1      | execute only |
   * | 0      | no permission |
   *
   * NOTE: This API currently throws on Windows
   *
   * Requires `allow-write` permission.
   *
   * @tags allow-write
   * @category File System
   */
  export function chmod(path: string | URL, mode: number): Promise<void>;

  /** Synchronously changes the permission of a specific file/directory of
   * specified path. Ignores the process's umask.
   *
   * ```ts
   * Deno.chmodSync("/path/to/file", 0o666);
   * ```
   *
   * For a full description, see {@linkcode Deno.chmod}.
   *
   * NOTE: This API currently throws on Windows
   *
   * Requires `allow-write` permission.
   *
   * @tags allow-write
   * @category File System
   */
  export function chmodSync(path: string | URL, mode: number): void;

  /** Change owner of a regular file or directory.
   *
   * This functionality is not available on Windows.
   *
   * ```ts
   * await Deno.chown("myFile.txt", 1000, 1002);
   * ```
   *
   * Requires `allow-write` permission.
   *
   * Throws Error (not implemented) if executed on Windows.
   *
   * @tags allow-write
   * @category File System
   *
   * @param path path to the file
   * @param uid user id (UID) of the new owner, or `null` for no change
   * @param gid group id (GID) of the new owner, or `null` for no change
   */
  export function chown(
    path: string | URL,
    uid: number | null,
    gid: number | null,
  ): Promise<void>;

  /** Synchronously change owner of a regular file or directory.
   *
   * This functionality is not available on Windows.
   *
   * ```ts
   * Deno.chownSync("myFile.txt", 1000, 1002);
   * ```
   *
   * Requires `allow-write` permission.
   *
   * Throws Error (not implemented) if executed on Windows.
   *
   * @tags allow-write
   * @category File System
   *
   * @param path path to the file
   * @param uid user id (UID) of the new owner, or `null` for no change
   * @param gid group id (GID) of the new owner, or `null` for no change
   */
  export function chownSync(
    path: string | URL,
    uid: number | null,
    gid: number | null,
  ): void;

  /**
   * Options which can be set when using {@linkcode Deno.remove} and
   * {@linkcode Deno.removeSync}.
   *
   * @category File System */
  export interface RemoveOptions {
    /** Defaults to `false`. If set to `true`, path will be removed even if
     * it's a non-empty directory. */
    recursive?: boolean;
  }

  /** Removes the named file or directory.
   *
   * ```ts
   * await Deno.remove("/path/to/empty_dir/or/file");
   * await Deno.remove("/path/to/populated_dir/or/file", { recursive: true });
   * ```
   *
   * Throws error if permission denied, path not found, or path is a non-empty
   * directory and the `recursive` option isn't set to `true`.
   *
   * Requires `allow-write` permission.
   *
   * @tags allow-write
   * @category File System
   */
  export function remove(
    path: string | URL,
    options?: RemoveOptions,
  ): Promise<void>;

  /** Synchronously removes the named file or directory.
   *
   * ```ts
   * Deno.removeSync("/path/to/empty_dir/or/file");
   * Deno.removeSync("/path/to/populated_dir/or/file", { recursive: true });
   * ```
   *
   * Throws error if permission denied, path not found, or path is a non-empty
   * directory and the `recursive` option isn't set to `true`.
   *
   * Requires `allow-write` permission.
   *
   * @tags allow-write
   * @category File System
   */
  export function removeSync(path: string | URL, options?: RemoveOptions): void;

  /** Synchronously renames (moves) `oldpath` to `newpath`. Paths may be files or
   * directories. If `newpath` already exists and is not a directory,
   * `renameSync()` replaces it. OS-specific restrictions may apply when
   * `oldpath` and `newpath` are in different directories.
   *
   * ```ts
   * Deno.renameSync("old/path", "new/path");
   * ```
   *
   * On Unix-like OSes, this operation does not follow symlinks at either path.
   *
   * It varies between platforms when the operation throws errors, and if so what
   * they are. It's always an error to rename anything to a non-empty directory.
   *
   * Requires `allow-read` and `allow-write` permissions.
   *
   * @tags allow-read, allow-write
   * @category File System
   */
  export function renameSync(
    oldpath: string | URL,
    newpath: string | URL,
  ): void;

  /** Renames (moves) `oldpath` to `newpath`. Paths may be files or directories.
   * If `newpath` already exists and is not a directory, `rename()` replaces it.
   * OS-specific restrictions may apply when `oldpath` and `newpath` are in
   * different directories.
   *
   * ```ts
   * await Deno.rename("old/path", "new/path");
   * ```
   *
   * On Unix-like OSes, this operation does not follow symlinks at either path.
   *
   * It varies between platforms when the operation throws errors, and if so
   * what they are. It's always an error to rename anything to a non-empty
   * directory.
   *
   * Requires `allow-read` and `allow-write` permissions.
   *
   * @tags allow-read, allow-write
   * @category File System
   */
  export function rename(
    oldpath: string | URL,
    newpath: string | URL,
  ): Promise<void>;

  /** Asynchronously reads and returns the entire contents of a file as an UTF-8
   *  decoded string. Reading a directory throws an error.
   *
   * ```ts
   * const data = await Deno.readTextFile("hello.txt");
   * console.log(data);
   * ```
   *
   * Requires `allow-read` permission.
   *
   * @tags allow-read
   * @category File System
   */
  export function readTextFile(
    path: string | URL,
    options?: ReadFileOptions,
  ): Promise<string>;

  /** Synchronously reads and returns the entire contents of a file as an UTF-8
   *  decoded string. Reading a directory throws an error.
   *
   * ```ts
   * const data = Deno.readTextFileSync("hello.txt");
   * console.log(data);
   * ```
   *
   * Requires `allow-read` permission.
   *
   * @tags allow-read
   * @category File System
   */
  export function readTextFileSync(path: string | URL): string;

  /** Reads and resolves to the entire contents of a file as an array of bytes.
   * `TextDecoder` can be used to transform the bytes to string if required.
   * Reading a directory returns an empty data array.
   *
   * ```ts
   * const decoder = new TextDecoder("utf-8");
   * const data = await Deno.readFile("hello.txt");
   * console.log(decoder.decode(data));
   * ```
   *
   * Requires `allow-read` permission.
   *
   * @tags allow-read
   * @category File System
   */
  export function readFile(
    path: string | URL,
    options?: ReadFileOptions,
  ): Promise<Uint8Array>;

  /** Synchronously reads and returns the entire contents of a file as an array
   * of bytes. `TextDecoder` can be used to transform the bytes to string if
   * required. Reading a directory returns an empty data array.
   *
   * ```ts
   * const decoder = new TextDecoder("utf-8");
   * const data = Deno.readFileSync("hello.txt");
   * console.log(decoder.decode(data));
   * ```
   *
   * Requires `allow-read` permission.
   *
   * @tags allow-read
   * @category File System
   */
  export function readFileSync(path: string | URL): Uint8Array;

  /** Provides information about a file and is returned by
   * {@linkcode Deno.stat}, {@linkcode Deno.lstat}, {@linkcode Deno.statSync},
   * and {@linkcode Deno.lstatSync} or from calling `stat()` and `statSync()`
   * on an {@linkcode Deno.FsFile} instance.
   *
   * @category File System
   */
  export interface FileInfo {
    /** True if this is info for a regular file. Mutually exclusive to
     * `FileInfo.isDirectory` and `FileInfo.isSymlink`. */
    isFile: boolean;
    /** True if this is info for a regular directory. Mutually exclusive to
     * `FileInfo.isFile` and `FileInfo.isSymlink`. */
    isDirectory: boolean;
    /** True if this is info for a symlink. Mutually exclusive to
     * `FileInfo.isFile` and `FileInfo.isDirectory`. */
    isSymlink: boolean;
    /** The size of the file, in bytes. */
    size: number;
    /** The last modification time of the file. This corresponds to the `mtime`
     * field from `stat` on Linux/Mac OS and `ftLastWriteTime` on Windows. This
     * may not be available on all platforms. */
    mtime: Date | null;
    /** The last access time of the file. This corresponds to the `atime`
     * field from `stat` on Unix and `ftLastAccessTime` on Windows. This may not
     * be available on all platforms. */
    atime: Date | null;
    /** The creation time of the file. This corresponds to the `birthtime`
     * field from `stat` on Mac/BSD and `ftCreationTime` on Windows. This may
     * not be available on all platforms. */
    birthtime: Date | null;
    /** ID of the device containing the file.
     *
     * _Linux/Mac OS only._ */
    dev: number | null;
    /** Inode number.
     *
     * _Linux/Mac OS only._ */
    ino: number | null;
    /** **UNSTABLE**: Match behavior with Go on Windows for `mode`.
     *
     * The underlying raw `st_mode` bits that contain the standard Unix
     * permissions for this file/directory. */
    mode: number | null;
    /** Number of hard links pointing to this file.
     *
     * _Linux/Mac OS only._ */
    nlink: number | null;
    /** User ID of the owner of this file.
     *
     * _Linux/Mac OS only._ */
    uid: number | null;
    /** Group ID of the owner of this file.
     *
     * _Linux/Mac OS only._ */
    gid: number | null;
    /** Device ID of this file.
     *
     * _Linux/Mac OS only._ */
    rdev: number | null;
    /** Blocksize for filesystem I/O.
     *
     * _Linux/Mac OS only._ */
    blksize: number | null;
    /** Number of blocks allocated to the file, in 512-byte units.
     *
     * _Linux/Mac OS only._ */
    blocks: number | null;
  }

  /** Resolves to the absolute normalized path, with symbolic links resolved.
   *
   * ```ts
   * // e.g. given /home/alice/file.txt and current directory /home/alice
   * await Deno.symlink("file.txt", "symlink_file.txt");
   * const realPath = await Deno.realPath("./file.txt");
   * const realSymLinkPath = await Deno.realPath("./symlink_file.txt");
   * console.log(realPath);  // outputs "/home/alice/file.txt"
   * console.log(realSymLinkPath);  // outputs "/home/alice/file.txt"
   * ```
   *
   * Requires `allow-read` permission for the target path.
   *
   * Also requires `allow-read` permission for the `CWD` if the target path is
   * relative.
   *
   * @tags allow-read
   * @category File System
   */
  export function realPath(path: string | URL): Promise<string>;

  /** Synchronously returns absolute normalized path, with symbolic links
   * resolved.
   *
   * ```ts
   * // e.g. given /home/alice/file.txt and current directory /home/alice
   * Deno.symlinkSync("file.txt", "symlink_file.txt");
   * const realPath = Deno.realPathSync("./file.txt");
   * const realSymLinkPath = Deno.realPathSync("./symlink_file.txt");
   * console.log(realPath);  // outputs "/home/alice/file.txt"
   * console.log(realSymLinkPath);  // outputs "/home/alice/file.txt"
   * ```
   *
   * Requires `allow-read` permission for the target path.
   *
   * Also requires `allow-read` permission for the `CWD` if the target path is
   * relative.
   *
   * @tags allow-read
   * @category File System
   */
  export function realPathSync(path: string | URL): string;

  /**
   * Information about a directory entry returned from {@linkcode Deno.readDir}
   * and {@linkcode Deno.readDirSync}.
   *
   * @category File System */
  export interface DirEntry {
    /** The file name of the entry. It is just the entity name and does not
     * include the full path. */
    name: string;
    /** True if this is info for a regular file. Mutually exclusive to
     * `DirEntry.isDirectory` and `DirEntry.isSymlink`. */
    isFile: boolean;
    /** True if this is info for a regular directory. Mutually exclusive to
     * `DirEntry.isFile` and `DirEntry.isSymlink`. */
    isDirectory: boolean;
    /** True if this is info for a symlink. Mutually exclusive to
     * `DirEntry.isFile` and `DirEntry.isDirectory`. */
    isSymlink: boolean;
  }

  /** Reads the directory given by `path` and returns an async iterable of
   * {@linkcode Deno.DirEntry}.
   *
   * ```ts
   * for await (const dirEntry of Deno.readDir("/")) {
   *   console.log(dirEntry.name);
   * }
   * ```
   *
   * Throws error if `path` is not a directory.
   *
   * Requires `allow-read` permission.
   *
   * @tags allow-read
   * @category File System
   */
  export function readDir(path: string | URL): AsyncIterable<DirEntry>;

  /** Synchronously reads the directory given by `path` and returns an iterable
   * of `Deno.DirEntry`.
   *
   * ```ts
   * for (const dirEntry of Deno.readDirSync("/")) {
   *   console.log(dirEntry.name);
   * }
   * ```
   *
   * Throws error if `path` is not a directory.
   *
   * Requires `allow-read` permission.
   *
   * @tags allow-read
   * @category File System
   */
  export function readDirSync(path: string | URL): Iterable<DirEntry>;

  /** Copies the contents and permissions of one file to another specified path,
   * by default creating a new file if needed, else overwriting. Fails if target
   * path is a directory or is unwritable.
   *
   * ```ts
   * await Deno.copyFile("from.txt", "to.txt");
   * ```
   *
   * Requires `allow-read` permission on `fromPath`.
   *
   * Requires `allow-write` permission on `toPath`.
   *
   * @tags allow-read, allow-write
   * @category File System
   */
  export function copyFile(
    fromPath: string | URL,
    toPath: string | URL,
  ): Promise<void>;

  /** Synchronously copies the contents and permissions of one file to another
   * specified path, by default creating a new file if needed, else overwriting.
   * Fails if target path is a directory or is unwritable.
   *
   * ```ts
   * Deno.copyFileSync("from.txt", "to.txt");
   * ```
   *
   * Requires `allow-read` permission on `fromPath`.
   *
   * Requires `allow-write` permission on `toPath`.
   *
   * @tags allow-read, allow-write
   * @category File System
   */
  export function copyFileSync(
    fromPath: string | URL,
    toPath: string | URL,
  ): void;

  /** Resolves to the full path destination of the named symbolic link.
   *
   * ```ts
   * await Deno.symlink("./test.txt", "./test_link.txt");
   * const target = await Deno.readLink("./test_link.txt"); // full path of ./test.txt
   * ```
   *
   * Throws TypeError if called with a hard link.
   *
   * Requires `allow-read` permission.
   *
   * @tags allow-read
   * @category File System
   */
  export function readLink(path: string | URL): Promise<string>;

  /** Synchronously returns the full path destination of the named symbolic
   * link.
   *
   * ```ts
   * Deno.symlinkSync("./test.txt", "./test_link.txt");
   * const target = Deno.readLinkSync("./test_link.txt"); // full path of ./test.txt
   * ```
   *
   * Throws TypeError if called with a hard link.
   *
   * Requires `allow-read` permission.
   *
   * @tags allow-read
   * @category File System
   */
  export function readLinkSync(path: string | URL): string;

  /** Resolves to a {@linkcode Deno.FileInfo} for the specified `path`. If
   * `path` is a symlink, information for the symlink will be returned instead
   * of what it points to.
   *
   * ```ts
   * import { assert } from "https://deno.land/std/testing/asserts.ts";
   * const fileInfo = await Deno.lstat("hello.txt");
   * assert(fileInfo.isFile);
   * ```
   *
   * Requires `allow-read` permission.
   *
   * @tags allow-read
   * @category File System
   */
  export function lstat(path: string | URL): Promise<FileInfo>;

  /** Synchronously returns a {@linkcode Deno.FileInfo} for the specified
   * `path`. If `path` is a symlink, information for the symlink will be
   * returned instead of what it points to.
   *
   * ```ts
   * import { assert } from "https://deno.land/std/testing/asserts.ts";
   * const fileInfo = Deno.lstatSync("hello.txt");
   * assert(fileInfo.isFile);
   * ```
   *
   * Requires `allow-read` permission.
   *
   * @tags allow-read
   * @category File System
   */
  export function lstatSync(path: string | URL): FileInfo;

  /** Resolves to a {@linkcode Deno.FileInfo} for the specified `path`. Will
   * always follow symlinks.
   *
   * ```ts
   * import { assert } from "https://deno.land/std/testing/asserts.ts";
   * const fileInfo = await Deno.stat("hello.txt");
   * assert(fileInfo.isFile);
   * ```
   *
   * Requires `allow-read` permission.
   *
   * @tags allow-read
   * @category File System
   */
  export function stat(path: string | URL): Promise<FileInfo>;

  /** Synchronously returns a {@linkcode Deno.FileInfo} for the specified
   * `path`. Will always follow symlinks.
   *
   * ```ts
   * import { assert } from "https://deno.land/std/testing/asserts.ts";
   * const fileInfo = Deno.statSync("hello.txt");
   * assert(fileInfo.isFile);
   * ```
   *
   * Requires `allow-read` permission.
   *
   * @tags allow-read
   * @category File System
   */
  export function statSync(path: string | URL): FileInfo;

  /** Options for writing to a file.
   *
   * @category File System
   */
  export interface WriteFileOptions {
    /** Defaults to `false`. If set to `true`, will append to a file instead of
     * overwriting previous contents. */
    append?: boolean;
    /** Sets the option to allow creating a new file, if one doesn't already
     * exist at the specified path (defaults to `true`). */
    create?: boolean;
    /** Permissions always applied to file. */
    mode?: number;
    /** An abort signal to allow cancellation of the file write operation.
     *
     * If the signal becomes aborted the write file operation will be stopped
     * and the promise returned will be rejected with an {@linkcode AbortError}.
     */
    signal?: AbortSignal;
  }

  /** Write `data` to the given `path`, by default creating a new file if
   * needed, else overwriting.
   *
   * ```ts
   * const encoder = new TextEncoder();
   * const data = encoder.encode("Hello world\n");
   * await Deno.writeFile("hello1.txt", data);  // overwrite "hello1.txt" or create it
   * await Deno.writeFile("hello2.txt", data, { create: false });  // only works if "hello2.txt" exists
   * await Deno.writeFile("hello3.txt", data, { mode: 0o777 });  // set permissions on new file
   * await Deno.writeFile("hello4.txt", data, { append: true });  // add data to the end of the file
   * ```
   *
   * Requires `allow-write` permission, and `allow-read` if `options.create` is
   * `false`.
   *
   * @tags allow-read, allow-write
   * @category File System
   */
  export function writeFile(
    path: string | URL,
    data: Uint8Array,
    options?: WriteFileOptions,
  ): Promise<void>;

  /** Synchronously write `data` to the given `path`, by default creating a new
   * file if needed, else overwriting.
   *
   * ```ts
   * const encoder = new TextEncoder();
   * const data = encoder.encode("Hello world\n");
   * Deno.writeFileSync("hello1.txt", data);  // overwrite "hello1.txt" or create it
   * Deno.writeFileSync("hello2.txt", data, { create: false });  // only works if "hello2.txt" exists
   * Deno.writeFileSync("hello3.txt", data, { mode: 0o777 });  // set permissions on new file
   * Deno.writeFileSync("hello4.txt", data, { append: true });  // add data to the end of the file
   * ```
   *
   * Requires `allow-write` permission, and `allow-read` if `options.create` is
   * `false`.
   *
   * @tags allow-read, allow-write
   * @category File System
   */
  export function writeFileSync(
    path: string | URL,
    data: Uint8Array,
    options?: WriteFileOptions,
  ): void;

  /** Write string `data` to the given `path`, by default creating a new file if
   * needed, else overwriting.
   *
   * ```ts
   * await Deno.writeTextFile("hello1.txt", "Hello world\n");  // overwrite "hello1.txt" or create it
   * ```
   *
   * Requires `allow-write` permission, and `allow-read` if `options.create` is
   * `false`.
   *
   * @tags allow-read, allow-write
   * @category File System
   */
  export function writeTextFile(
    path: string | URL,
    data: string,
    options?: WriteFileOptions,
  ): Promise<void>;

  /** Synchronously write string `data` to the given `path`, by default creating
   * a new file if needed, else overwriting.
   *
   * ```ts
   * Deno.writeTextFileSync("hello1.txt", "Hello world\n");  // overwrite "hello1.txt" or create it
   * ```
   *
   * Requires `allow-write` permission, and `allow-read` if `options.create` is
   * `false`.
   *
   * @tags allow-read, allow-write
   * @category File System
   */
  export function writeTextFileSync(
    path: string | URL,
    data: string,
    options?: WriteFileOptions,
  ): void;

  /** Truncates (or extends) the specified file, to reach the specified `len`.
   * If `len` is not specified then the entire file contents are truncated.
   *
   * ### Truncate the entire file
   * ```ts
   * await Deno.truncate("my_file.txt");
   * ```
   *
   * ### Truncate part of the file
   *
   * ```
   * const file = await Deno.makeTempFile();
   * await Deno.writeFile(file, new TextEncoder().encode("Hello World"));
   * await Deno.truncate(file, 7);
   * const data = await Deno.readFile(file);
   * console.log(new TextDecoder().decode(data));  // "Hello W"
   * ```
   *
   * Requires `allow-write` permission.
   *
   * @tags allow-write
   * @category File System
   */
  export function truncate(name: string, len?: number): Promise<void>;

  /** Synchronously truncates (or extends) the specified file, to reach the
   * specified `len`. If `len` is not specified then the entire file contents
   * are truncated.
   *
   * ### Truncate the entire file
   *
   * ```ts
   * Deno.truncateSync("my_file.txt");
   * ```
   *
   * ### Truncate part of the file
   *
   * ```ts
   * const file = Deno.makeTempFileSync();
   * Deno.writeFileSync(file, new TextEncoder().encode("Hello World"));
   * Deno.truncateSync(file, 7);
   * const data = Deno.readFileSync(file);
   * console.log(new TextDecoder().decode(data));
   * ```
   *
   * Requires `allow-write` permission.
   *
   * @tags allow-write
   * @category File System
   */
  export function truncateSync(name: string, len?: number): void;

  /** @category Observability */
  export interface OpMetrics {
    opsDispatched: number;
    opsDispatchedSync: number;
    opsDispatchedAsync: number;
    opsDispatchedAsyncUnref: number;
    opsCompleted: number;
    opsCompletedSync: number;
    opsCompletedAsync: number;
    opsCompletedAsyncUnref: number;
    bytesSentControl: number;
    bytesSentData: number;
    bytesReceived: number;
  }

  /** @category Observability */
  export interface Metrics extends OpMetrics {
    ops: Record<string, OpMetrics>;
  }

  /** Receive metrics from the privileged side of Deno. This is primarily used
   * in the development of Deno. _Ops_, also called _bindings_, are the
   * go-between between Deno JavaScript sandbox and the rest of Deno.
   *
   * ```shell
   * > console.table(Deno.metrics())
   * ┌─────────────────────────┬────────┐
   * │         (index)         │ Values │
   * ├─────────────────────────┼────────┤
   * │      opsDispatched      │   3    │
   * │    opsDispatchedSync    │   2    │
   * │   opsDispatchedAsync    │   1    │
   * │ opsDispatchedAsyncUnref │   0    │
   * │      opsCompleted       │   3    │
   * │    opsCompletedSync     │   2    │
   * │    opsCompletedAsync    │   1    │
   * │ opsCompletedAsyncUnref  │   0    │
   * │    bytesSentControl     │   73   │
   * │      bytesSentData      │   0    │
   * │      bytesReceived      │  375   │
   * └─────────────────────────┴────────┘
   * ```
   *
   * @category Observability
   */
  export function metrics(): Metrics;

  /**
   * A map of open resources that Deno is tracking. The key is the resource ID
   * (_rid_) and the value is its representation.
   *
   * @category Observability */
  interface ResourceMap {
    [rid: number]: unknown;
  }

  /** Returns a map of open resource IDs (_rid_) along with their string
   * representations. This is an internal API and as such resource
   * representation has `unknown` type; that means it can change any time and
   * should not be depended upon.
   *
   * ```ts
   * console.log(Deno.resources());
   * // { 0: "stdin", 1: "stdout", 2: "stderr" }
   * Deno.openSync('../test.file');
   * console.log(Deno.resources());
   * // { 0: "stdin", 1: "stdout", 2: "stderr", 3: "fsFile" }
   * ```
   *
   * @category Observability
   */
  export function resources(): ResourceMap;

  /**
   * Additional information for FsEvent objects with the "other" kind.
   *
   * - `"rescan"`: rescan notices indicate either a lapse in the events or a
   *    change in the filesystem such that events received so far can no longer
   *    be relied on to represent the state of the filesystem now. An
   *    application that simply reacts to file changes may not care about this.
   *    An application that keeps an in-memory representation of the filesystem
   *    will need to care, and will need to refresh that representation directly
   *    from the filesystem.
   *
   * @category File System
   */
  export type FsEventFlag = "rescan";

  /**
   * Represents a unique file system event yielded by a
   * {@linkcode Deno.FsWatcher}.
   *
   * @category File System */
  export interface FsEvent {
    /** The kind/type of the file system event. */
    kind: "any" | "access" | "create" | "modify" | "remove" | "other";
    /** An array of paths that are associated with the file system event. */
    paths: string[];
    /** Any additional flags associated with the event. */
    flag?: FsEventFlag;
  }

  /**
   * Returned by {@linkcode Deno.watchFs}. It is an async iterator yielding up
   * system events. To stop watching the file system by calling `.close()`
   * method.
   *
   * @category File System
   */
  export interface FsWatcher extends AsyncIterable<FsEvent> {
    /** The resource id. */
    readonly rid: number;
    /** Stops watching the file system and closes the watcher resource. */
    close(): void;
    /**
     * Stops watching the file system and closes the watcher resource.
     *
     * @deprecated Will be removed in the future.
     */
    return?(value?: any): Promise<IteratorResult<FsEvent>>;
    [Symbol.asyncIterator](): AsyncIterableIterator<FsEvent>;
  }

  /** Watch for file system events against one or more `paths`, which can be
   * files or directories. These paths must exist already. One user action (e.g.
   * `touch test.file`) can generate multiple file system events. Likewise,
   * one user action can result in multiple file paths in one event (e.g. `mv
   * old_name.txt new_name.txt`).
   *
   * The recursive option is `true` by default and, for directories, will watch
   * the specified directory and all sub directories.
   *
   * Note that the exact ordering of the events can vary between operating
   * systems.
   *
   * ```ts
   * const watcher = Deno.watchFs("/");
   * for await (const event of watcher) {
   *    console.log(">>>> event", event);
   *    // { kind: "create", paths: [ "/foo.txt" ] }
   * }
   * ```
   *
   * Call `watcher.close()` to stop watching.
   *
   * ```ts
   * const watcher = Deno.watchFs("/");
   *
   * setTimeout(() => {
   *   watcher.close();
   * }, 5000);
   *
   * for await (const event of watcher) {
   *    console.log(">>>> event", event);
   * }
   * ```
   *
   * Requires `allow-read` permission.
   *
   * @tags allow-read
   * @category File System
   */
  export function watchFs(
    paths: string | string[],
    options?: { recursive: boolean },
  ): FsWatcher;

  /** Options which can be used with {@linkcode Deno.run}.
   *
   * @category Sub Process */
  export interface RunOptions {
    /** Arguments to pass.
     *
     * _Note_: the first element needs to be a path to the executable that is
     * being run. */
    cmd: readonly string[] | [string | URL, ...string[]];
    /** The current working directory that should be used when running the
     * sub-process. */
    cwd?: string;
    /** Any environment variables to be set when running the sub-process. */
    env?: Record<string, string>;
    /** By default subprocess inherits `stdout` of parent process. To change
     * this this option can be set to a resource ID (_rid_) of an open file,
     * `"inherit"`, `"piped"`, or `"null"`:
     *
     * - _number_: the resource ID of an open file/resource. This allows you to
     *   write to a file.
     * - `"inherit"`: The default if unspecified. The subprocess inherits from the
     *   parent.
     * - `"piped"`: A new pipe should be arranged to connect the parent and child
     *   sub-process.
     * - `"null"`: This stream will be ignored. This is the equivalent of attaching
     *   the stream to `/dev/null`.
     */
    stdout?: "inherit" | "piped" | "null" | number;
    /** By default subprocess inherits `stderr` of parent process. To change
     * this this option can be set to a resource ID (_rid_) of an open file,
     * `"inherit"`, `"piped"`, or `"null"`:
     *
     * - _number_: the resource ID of an open file/resource. This allows you to
     *   write to a file.
     * - `"inherit"`: The default if unspecified. The subprocess inherits from the
     *   parent.
     * - `"piped"`: A new pipe should be arranged to connect the parent and child
     *   sub-process.
     * - `"null"`: This stream will be ignored. This is the equivalent of attaching
     *   the stream to `/dev/null`.
     */
    stderr?: "inherit" | "piped" | "null" | number;
    /** By default subprocess inherits `stdin` of parent process. To change
     * this this option can be set to a resource ID (_rid_) of an open file,
     * `"inherit"`, `"piped"`, or `"null"`:
     *
     * - _number_: the resource ID of an open file/resource. This allows you to
     *   read from a file.
     * - `"inherit"`: The default if unspecified. The subprocess inherits from the
     *   parent.
     * - `"piped"`: A new pipe should be arranged to connect the parent and child
     *   sub-process.
     * - `"null"`: This stream will be ignored. This is the equivalent of attaching
     *   the stream to `/dev/null`.
     */
    stdin?: "inherit" | "piped" | "null" | number;
  }

  /** The status resolved from the `.status()` method of a
   * {@linkcode Deno.Process} instance.
   *
   * If `success` is `true`, then `code` will be `0`, but if `success` is
   * `false`, the sub-process exit code will be set in `code`.
   *
   * @category Sub Process */
  export type ProcessStatus =
    | {
      success: true;
      code: 0;
      signal?: undefined;
    }
    | {
      success: false;
      code: number;
      signal?: number;
    };

  /**
   * Represents an instance of a sub process that is returned from
   * {@linkcode Deno.run} which can be used to manage the sub-process.
   *
   * @category Sub Process */
  export class Process<T extends RunOptions = RunOptions> {
    /** The resource ID of the sub-process. */
    readonly rid: number;
    /** The operating system's process ID for the sub-process. */
    readonly pid: number;
    /** A reference to the sub-processes `stdin`, which allows interacting with
     * the sub-process at a low level. */
    readonly stdin: T["stdin"] extends "piped" ? Writer & Closer & {
        writable: WritableStream<Uint8Array>;
      }
      : (Writer & Closer & { writable: WritableStream<Uint8Array> }) | null;
    /** A reference to the sub-processes `stdout`, which allows interacting with
     * the sub-process at a low level. */
    readonly stdout: T["stdout"] extends "piped" ? Reader & Closer & {
        readable: ReadableStream<Uint8Array>;
      }
      : (Reader & Closer & { readable: ReadableStream<Uint8Array> }) | null;
    /** A reference to the sub-processes `stderr`, which allows interacting with
     * the sub-process at a low level. */
    readonly stderr: T["stderr"] extends "piped" ? Reader & Closer & {
        readable: ReadableStream<Uint8Array>;
      }
      : (Reader & Closer & { readable: ReadableStream<Uint8Array> }) | null;
    /** Wait for the process to exit and return its exit status.
     *
     * Calling this function multiple times will return the same status.
     *
     * The `stdin` reference to the process will be closed before waiting to
     * avoid a deadlock.
     *
     * If `stdout` and/or `stderr` were set to `"piped"`, they must be closed
     * manually before the process can exit.
     *
     * To run process to completion and collect output from both `stdout` and
     * `stderr` use:
     *
     * ```ts
     * const p = Deno.run({ cmd: [ "echo", "hello world" ], stderr: 'piped', stdout: 'piped' });
     * const [status, stdout, stderr] = await Promise.all([
     *   p.status(),
     *   p.output(),
     *   p.stderrOutput()
     * ]);
     * p.close();
     * ```
     */
    status(): Promise<ProcessStatus>;
    /** Buffer the stdout until EOF and return it as `Uint8Array`.
     *
     * You must set `stdout` to `"piped"` when creating the process.
     *
     * This calls `close()` on stdout after its done. */
    output(): Promise<Uint8Array>;
    /** Buffer the stderr until EOF and return it as `Uint8Array`.
     *
     * You must set `stderr` to `"piped"` when creating the process.
     *
     * This calls `close()` on stderr after its done. */
    stderrOutput(): Promise<Uint8Array>;
    /** Clean up resources associated with the sub-process instance. */
    close(): void;
    /** Send a signal to process.
     *
     * ```ts
     * const p = Deno.run({ cmd: [ "sleep", "20" ]});
     * p.kill("SIGTERM");
     * p.close();
     * ```
     */
    kill(signo: Signal): void;
  }

  /** Operating signals which can be listened for or sent to sub-processes. What
   * signals and what their standard behaviors are are OS dependent.
   *
   * @category Runtime Environment */
  export type Signal =
    | "SIGABRT"
    | "SIGALRM"
    | "SIGBREAK"
    | "SIGBUS"
    | "SIGCHLD"
    | "SIGCONT"
    | "SIGEMT"
    | "SIGFPE"
    | "SIGHUP"
    | "SIGILL"
    | "SIGINFO"
    | "SIGINT"
    | "SIGIO"
    | "SIGKILL"
    | "SIGPIPE"
    | "SIGPROF"
    | "SIGPWR"
    | "SIGQUIT"
    | "SIGSEGV"
    | "SIGSTKFLT"
    | "SIGSTOP"
    | "SIGSYS"
    | "SIGTERM"
    | "SIGTRAP"
    | "SIGTSTP"
    | "SIGTTIN"
    | "SIGTTOU"
    | "SIGURG"
    | "SIGUSR1"
    | "SIGUSR2"
    | "SIGVTALRM"
    | "SIGWINCH"
    | "SIGXCPU"
    | "SIGXFSZ";

  /** Registers the given function as a listener of the given signal event.
   *
   * ```ts
   * Deno.addSignalListener(
   *   "SIGTERM",
   *   () => {
   *     console.log("SIGTERM!")
   *   }
   * );
   * ```
   *
   * _Note_: On Windows only `"SIGINT"` (CTRL+C) and `"SIGBREAK"` (CTRL+Break)
   * are supported.
   *
   * @category Runtime Environment
   */
  export function addSignalListener(signal: Signal, handler: () => void): void;

  /** Removes the given signal listener that has been registered with
   * {@linkcode Deno.addSignalListener}.
   *
   * ```ts
   * const listener = () => {
   *   console.log("SIGTERM!")
   * };
   * Deno.addSignalListener("SIGTERM", listener);
   * Deno.removeSignalListener("SIGTERM", listener);
   * ```
   *
   * _Note_: On Windows only `"SIGINT"` (CTRL+C) and `"SIGBREAK"` (CTRL+Break)
   * are supported.
   *
   * @category Runtime Environment
   */
  export function removeSignalListener(
    signal: Signal,
    handler: () => void,
  ): void;

  /** Spawns new subprocess. RunOptions must contain at a minimum the `opt.cmd`,
   * an array of program arguments, the first of which is the binary.
   *
   * ```ts
   * const p = Deno.run({
   *   cmd: ["curl", "https://example.com"],
   * });
   * const status = await p.status();
   * ```
   *
   * Subprocess uses same working directory as parent process unless `opt.cwd`
   * is specified.
   *
   * Environmental variables from parent process can be cleared using `opt.clearEnv`.
   * Doesn't guarantee that only `opt.env` variables are present,
   * as the OS may set environmental variables for processes.
   *
   * Environmental variables for subprocess can be specified using `opt.env`
   * mapping.
   *
   * `opt.uid` sets the child process’s user ID. This translates to a setuid call
   * in the child process. Failure in the setuid call will cause the spawn to fail.
   *
   * `opt.gid` is similar to `opt.uid`, but sets the group ID of the child process.
   * This has the same semantics as the uid field.
   *
   * By default subprocess inherits stdio of parent process. To change
   * this this, `opt.stdin`, `opt.stdout`, and `opt.stderr` can be set
   * independently to a resource ID (_rid_) of an open file, `"inherit"`,
   * `"piped"`, or `"null"`:
   *
   * - _number_: the resource ID of an open file/resource. This allows you to
   *   read or write to a file.
   * - `"inherit"`: The default if unspecified. The subprocess inherits from the
   *   parent.
   * - `"piped"`: A new pipe should be arranged to connect the parent and child
   *   sub-process.
   * - `"null"`: This stream will be ignored. This is the equivalent of attaching
   *   the stream to `/dev/null`.
   *
   * Details of the spawned process are returned as an instance of
   * {@linkcode Deno.Process}.
   *
   * Requires `allow-run` permission.
   *
   * @tags allow-run
   * @category Sub Process
   */
  export function run<T extends RunOptions = RunOptions>(opt: T): Process<T>;

  /** Option which can be specified when performing {@linkcode Deno.inspect}.
   *
   * @category Console and Debugging */
  export interface InspectOptions {
    /** Stylize output with ANSI colors. Defaults to `false`. */
    colors?: boolean;
    /** Try to fit more than one entry of a collection on the same line.
     * Defaults to `true`. */
    compact?: boolean;
    /** Traversal depth for nested objects. Defaults to `4`. */
    depth?: number;
    /** The maximum number of iterable entries to print. Defaults to `100`. */
    iterableLimit?: number;
    /** Show a Proxy's target and handler. Defaults to `false`. */
    showProxy?: boolean;
    /** Sort Object, Set and Map entries by key. Defaults to `false`. */
    sorted?: boolean;
    /** Add a trailing comma for multiline collections. Defaults to `false`. */
    trailingComma?: boolean;
    /*** Evaluate the result of calling getters. Defaults to `false`. */
    getters?: boolean;
    /** Show an object's non-enumerable properties. Defaults to `false`. */
    showHidden?: boolean;
    /** The maximum length of a string before it is truncated with an
     * ellipsis. */
    strAbbreviateSize?: number;
  }

  /** Converts the input into a string that has the same format as printed by
   * `console.log()`.
   *
   * ```ts
   * const obj = {
   *   a: 10,
   *   b: "hello",
   * };
   * const objAsString = Deno.inspect(obj); // { a: 10, b: "hello" }
   * console.log(obj);  // prints same value as objAsString, e.g. { a: 10, b: "hello" }
   * ```
   *
   * A custom inspect functions can be registered on objects, via the symbol
   * `Symbol.for("Deno.customInspect")`, to control and customize the output
   * of `inspect()` or when using `console` logging:
   *
   * ```ts
   * class A {
   *   x = 10;
   *   y = "hello";
   *   [Symbol.for("Deno.customInspect")]() {
   *     return `x=${this.x}, y=${this.y}`;
   *   }
   * }
   *
   * const inStringFormat = Deno.inspect(new A()); // "x=10, y=hello"
   * console.log(inStringFormat);  // prints "x=10, y=hello"
   * ```
   *
   * A depth can be specified by using the `depth` option:
   *
   * ```ts
   * Deno.inspect({a: {b: {c: {d: 'hello'}}}}, {depth: 2}); // { a: { b: [Object] } }
   * ```
   *
   * @category Console and Debugging
   */
  export function inspect(value: unknown, options?: InspectOptions): string;

  /** The name of a privileged feature which needs permission.
   *
   * @category Permissions
   */
  export type PermissionName =
    | "run"
    | "read"
    | "write"
    | "net"
    | "env"
    | "sys"
    | "ffi"
    | "hrtime";

  /** The current status of the permission:
   *
   * - `"granted"` - the permission has been granted.
   * - `"denied"` - the permission has been explicitly denied.
   * - `"prompt"` - the permission has not explicitly granted nor denied.
   *
   * @category Permissions
   */
  export type PermissionState = "granted" | "denied" | "prompt";

  /** @category Permissions */
  export interface RunPermissionDescriptor {
    name: "run";
    command?: string | URL;
  }

  /** @category Permissions */
  export interface ReadPermissionDescriptor {
    name: "read";
    path?: string | URL;
  }

  /** @category Permissions */
  export interface WritePermissionDescriptor {
    name: "write";
    path?: string | URL;
  }

  /** @category Permissions */
  export interface NetPermissionDescriptor {
    name: "net";
    /** Optional host string of the form `"<hostname>[:<port>]"`. Examples:
     *
     *      "github.com"
     *      "deno.land:8080"
     */
    host?: string;
  }

  /** @category Permissions */
  export interface EnvPermissionDescriptor {
    name: "env";
    variable?: string;
  }

  /** @category Permissions */
  export interface SysPermissionDescriptor {
    name: "sys";
    kind?:
      | "loadavg"
      | "hostname"
      | "systemMemoryInfo"
      | "networkInterfaces"
      | "osRelease"
      | "getUid"
      | "getGid";
  }

  /** @category Permissions */
  export interface FfiPermissionDescriptor {
    name: "ffi";
    path?: string | URL;
  }

  /** @category Permissions */
  export interface HrtimePermissionDescriptor {
    name: "hrtime";
  }

  /** Permission descriptors which define a permission and can be queried,
   * requested, or revoked.
   *
   * @category Permissions
   */
  export type PermissionDescriptor =
    | RunPermissionDescriptor
    | ReadPermissionDescriptor
    | WritePermissionDescriptor
    | NetPermissionDescriptor
    | EnvPermissionDescriptor
    | SysPermissionDescriptor
    | FfiPermissionDescriptor
    | HrtimePermissionDescriptor;

  /** @category Permissions */
  export interface PermissionStatusEventMap {
    "change": Event;
  }

  /** @category Permissions */
  export class PermissionStatus extends EventTarget {
    // deno-lint-ignore no-explicit-any
    onchange: ((this: PermissionStatus, ev: Event) => any) | null;
    readonly state: PermissionState;
    addEventListener<K extends keyof PermissionStatusEventMap>(
      type: K,
      listener: (
        this: PermissionStatus,
        ev: PermissionStatusEventMap[K],
      ) => any,
      options?: boolean | AddEventListenerOptions,
    ): void;
    addEventListener(
      type: string,
      listener: EventListenerOrEventListenerObject,
      options?: boolean | AddEventListenerOptions,
    ): void;
    removeEventListener<K extends keyof PermissionStatusEventMap>(
      type: K,
      listener: (
        this: PermissionStatus,
        ev: PermissionStatusEventMap[K],
      ) => any,
      options?: boolean | EventListenerOptions,
    ): void;
    removeEventListener(
      type: string,
      listener: EventListenerOrEventListenerObject,
      options?: boolean | EventListenerOptions,
    ): void;
  }

  /** @category Permissions */
  export class Permissions {
    /** Resolves to the current status of a permission.
     *
     * ```ts
     * const status = await Deno.permissions.query({ name: "read", path: "/etc" });
     * console.log(status.state);
     * ```
     */
    query(desc: PermissionDescriptor): Promise<PermissionStatus>;

    /** Revokes a permission, and resolves to the state of the permission.
     *
     * ```ts
     * import { assert } from "https://deno.land/std/testing/asserts.ts";
     *
     * const status = await Deno.permissions.revoke({ name: "run" });
     * assert(status.state !== "granted")
     * ```
     */
    revoke(desc: PermissionDescriptor): Promise<PermissionStatus>;

    /** Requests the permission, and resolves to the state of the permission.
     *
     * ```ts
     * const status = await Deno.permissions.request({ name: "env" });
     * if (status.state === "granted") {
     *   console.log("'env' permission is granted.");
     * } else {
     *   console.log("'env' permission is denied.");
     * }
     * ```
     */
    request(desc: PermissionDescriptor): Promise<PermissionStatus>;
  }

  /** Deno's permission management API.
   *
   * @category Permissions
   */
  export const permissions: Permissions;

  /** Build related information.
   *
   * @category Runtime Environment
   */
  export const build: {
    /** The LLVM target triple */
    target: string;
    /** Instruction set architecture */
    arch: "x86_64" | "aarch64";
    /** Operating system */
    os: "darwin" | "linux" | "windows";
    /** Computer vendor */
    vendor: string;
    /** Optional environment */
    env?: string;
  };

  /** Version related information.
   *
   * @category Runtime Environment
   */
  export const version: {
    /** Deno's version. For example: `"1.0.0"` */
    deno: string;
    /** The V8 version used by Deno. For example: `"8.0.0.0"` */
    v8: string;
    /** The TypeScript version used by Deno. For example: `"4.0.0"` */
    typescript: string;
  };

  /** Returns the script arguments to the program. If for example we run a
   * program:
   *
   * deno run --allow-read https://deno.land/std/examples/cat.ts /etc/passwd
   *
   * Then `Deno.args` will contain:
   *
   * [ "/etc/passwd" ]
   *
   * @category Runtime Environment
   */
  export const args: string[];

  /**
   * A symbol which can be used as a key for a custom method which will be
   * called when `Deno.inspect()` is called, or when the object is logged to
   * the console.
   *
   * @deprecated This symbol is deprecated since 1.9. Use
   * `Symbol.for("Deno.customInspect")` instead.
   *
   * @category Console and Debugging
   */
  export const customInspect: unique symbol;

  /** The URL of the entrypoint module entered from the command-line.
   *
   * @category Runtime Environment
   */
  export const mainModule: string;

  /** @category File System */
  export type SymlinkOptions = {
    type: "file" | "dir";
  };

  /**
   * Creates `newpath` as a symbolic link to `oldpath`.
   *
   * The options.type parameter can be set to `file` or `dir`. This argument is only
   * available on Windows and ignored on other platforms.
   *
   * ```ts
   * Deno.symlinkSync("old/name", "new/name");
   * ```
   *
   * Requires full `allow-read` and `allow-write` permissions.
   *
   * @tags allow-read, allow-write
   * @category File System
   */
  export function symlinkSync(
    oldpath: string | URL,
    newpath: string | URL,
    options?: SymlinkOptions,
  ): void;

  /**
   * Creates `newpath` as a symbolic link to `oldpath`.
   *
   * The options.type parameter can be set to `file` or `dir`. This argument is only
   * available on Windows and ignored on other platforms.
   *
   * ```ts
   * await Deno.symlink("old/name", "new/name");
   * ```
   *
   * Requires full `allow-read` and `allow-write` permissions.
   *
   * @tags allow-read, allow-write
   * @category File System
   */
  export function symlink(
    oldpath: string | URL,
    newpath: string | URL,
    options?: SymlinkOptions,
  ): Promise<void>;

  /**
   * Synchronously truncates or extends the specified file stream, to reach the
   * specified `len`.
   *
   * If `len` is not specified then the entire file contents are truncated as if len was set to 0.
   *
   * if the file previously was larger than this new length, the extra  data  is  lost.
   *
   * if  the  file  previously  was shorter, it is extended, and the extended part reads as null bytes ('\0').
   *
   * ```ts
   * // truncate the entire file
   * const file = Deno.openSync("my_file.txt", { read: true, write: true, truncate: true, create: true });
   * Deno.ftruncateSync(file.rid);
   * ```
   *
   * ```ts
   * // truncate part of the file
   * const file = Deno.openSync("my_file.txt", { read: true, write: true, create: true });
   * Deno.writeSync(file.rid, new TextEncoder().encode("Hello World"));
   * Deno.ftruncateSync(file.rid, 7);
   * Deno.seekSync(file.rid, 0, Deno.SeekMode.Start);
   * const data = new Uint8Array(32);
   * Deno.readSync(file.rid, data);
   * console.log(new TextDecoder().decode(data)); // Hello W
   * ```
   *
   * @category File System
   */
  export function ftruncateSync(rid: number, len?: number): void;

  /**
   * Truncates or extends the specified file stream, to reach the specified `len`.
   *
   * If `len` is not specified then the entire file contents are truncated as if len was set to 0.
   *
   * If the file previously was larger than this new length, the extra  data  is  lost.
   *
   * If  the  file  previously  was shorter, it is extended, and the extended part reads as null bytes ('\0').
   *
   * ```ts
   * // truncate the entire file
   * const file = await Deno.open("my_file.txt", { read: true, write: true, create: true });
   * await Deno.ftruncate(file.rid);
   * ```
   *
   * ```ts
   * // truncate part of the file
   * const file = await Deno.open("my_file.txt", { read: true, write: true, create: true });
   * await Deno.write(file.rid, new TextEncoder().encode("Hello World"));
   * await Deno.ftruncate(file.rid, 7);
   * const data = new Uint8Array(32);
   * await Deno.read(file.rid, data);
   * console.log(new TextDecoder().decode(data)); // Hello W
   * ```
   *
   * @category File System
   */
  export function ftruncate(rid: number, len?: number): Promise<void>;

  /**
   * Synchronously returns a `Deno.FileInfo` for the given file stream.
   *
   * ```ts
   * import { assert } from "https://deno.land/std/testing/asserts.ts";
   * const file = Deno.openSync("file.txt", { read: true });
   * const fileInfo = Deno.fstatSync(file.rid);
   * assert(fileInfo.isFile);
   * ```
   *
   * @category File System
   */
  export function fstatSync(rid: number): FileInfo;

  /**
   * Returns a `Deno.FileInfo` for the given file stream.
   *
   * ```ts
   * import { assert } from "https://deno.land/std/testing/asserts.ts";
   * const file = await Deno.open("file.txt", { read: true });
   * const fileInfo = await Deno.fstat(file.rid);
   * assert(fileInfo.isFile);
   * ```
   *
   * @category File System
   */
  export function fstat(rid: number): Promise<FileInfo>;

  /** @category HTTP Server */
  export interface RequestEvent {
    readonly request: Request;
    respondWith(r: Response | Promise<Response>): Promise<void>;
  }

  /** @category HTTP Server */
  export interface HttpConn extends AsyncIterable<RequestEvent> {
    readonly rid: number;

    nextRequest(): Promise<RequestEvent | null>;
    close(): void;
  }

  /**
   * Services HTTP requests given a TCP or TLS socket.
   *
   * ```ts
   * const conn = Deno.listen({ port: 80 });
   * const httpConn = Deno.serveHttp(await conn.accept());
   * const e = await httpConn.nextRequest();
   * if (e) {
   *   e.respondWith(new Response("Hello World"));
   * }
   * ```
   *
   * If `httpConn.nextRequest()` encounters an error or returns `null`
   * then the underlying HttpConn resource is closed automatically.
   *
   * Alternatively, you can also use the Async Iterator approach:
   *
   * ```ts
   * async function handleHttp(conn: Deno.Conn) {
   *   for await (const e of Deno.serveHttp(conn)) {
   *     e.respondWith(new Response("Hello World"));
   *   }
   * }
   *
   * for await (const conn of Deno.listen({ port: 80 })) {
   *   handleHttp(conn);
   * }
   * ```
   *
   * @category HTTP Server
   */
  export function serveHttp(conn: Conn): HttpConn;

  /** @category Web Sockets */
  export interface WebSocketUpgrade {
    response: Response;
    socket: WebSocket;
  }

  /** @category Web Sockets */
  export interface UpgradeWebSocketOptions {
    protocol?: string;
    /**
     * If the client does not respond to this frame with a
     * `pong` within the timeout specified, the connection is deemed
     * unhealthy and is closed. The `close` and `error` event will be emitted.
     *
     * The default is 120 seconds. Set to 0 to disable timeouts.
     */
    idleTimeout?: number;
  }

  /**
   * Used to upgrade an incoming HTTP request to a WebSocket.
   *
   * Given a request, returns a pair of WebSocket and Response. The original
   * request must be responded to with the returned response for the websocket
   * upgrade to be successful.
   *
   * ```ts
   * const conn = Deno.listen({ port: 80 });
   * const httpConn = Deno.serveHttp(await conn.accept());
   * const e = await httpConn.nextRequest();
   * if (e) {
   *   const { socket, response } = Deno.upgradeWebSocket(e.request);
   *   socket.onopen = () => {
   *     socket.send("Hello World!");
   *   };
   *   socket.onmessage = (e) => {
   *     console.log(e.data);
   *     socket.close();
   *   };
   *   socket.onclose = () => console.log("WebSocket has been closed.");
   *   socket.onerror = (e) => console.error("WebSocket error:", e);
   *   e.respondWith(response);
   * }
   * ```
   *
   * If the request body is disturbed (read from) before the upgrade is
   * completed, upgrading fails.
   *
   * This operation does not yet consume the request or open the websocket. This
   * only happens once the returned response has been passed to `respondWith`.
   *
   * @category Web Sockets
   */
  export function upgradeWebSocket(
    request: Request,
    options?: UpgradeWebSocketOptions,
  ): WebSocketUpgrade;

  /** Send a signal to process under given `pid`.
   *
   * If `pid` is negative, the signal will be sent to the process group
   * identified by `pid`. An error will be thrown if a negative
   * `pid` is used on Windows.
   *
   * ```ts
   * const p = Deno.run({
   *   cmd: ["sleep", "10000"]
   * });
   *
   * Deno.kill(p.pid, "SIGINT");
   * ```
   *
   * Requires `allow-run` permission.
   *
   * @tags allow-run
   * @category Sub Process
   */
  export function kill(pid: number, signo: Signal): void;

  /** The type of the resource record.
   * Only the listed types are supported currently.
   *
   * @category Network
   */
  export type RecordType =
    | "A"
    | "AAAA"
    | "ANAME"
    | "CAA"
    | "CNAME"
    | "MX"
    | "NAPTR"
    | "NS"
    | "PTR"
    | "SOA"
    | "SRV"
    | "TXT";

  /** @category Network */
  export interface ResolveDnsOptions {
    /** The name server to be used for lookups.
     * If not specified, defaults to the system configuration e.g. `/etc/resolv.conf` on Unix. */
    nameServer?: {
      /** The IP address of the name server */
      ipAddr: string;
      /** The port number the query will be sent to.
       * If not specified, defaults to 53. */
      port?: number;
    };
  }

  /** If `resolveDns` is called with "CAA" record type specified, it will return
   * an array of this interface.
   *
   * @category Network
   */
  export interface CAARecord {
    critical: boolean;
    tag: string;
    value: string;
  }

  /** If `resolveDns` is called with "MX" record type specified, it will return
   * an array of this interface.
   *
   * @category Network
   */
  export interface MXRecord {
    preference: number;
    exchange: string;
  }

  /** If `resolveDns` is called with "NAPTR" record type specified, it will
   * return an array of this interface.
   *
   * @category Network
   */
  export interface NAPTRRecord {
    order: number;
    preference: number;
    flags: string;
    services: string;
    regexp: string;
    replacement: string;
  }

  /** If `resolveDns` is called with "SOA" record type specified, it will return
   * an array of this interface.
   *
   * @category Network
   */
  export interface SOARecord {
    mname: string;
    rname: string;
    serial: number;
    refresh: number;
    retry: number;
    expire: number;
    minimum: number;
  }

  /** If `resolveDns` is called with "SRV" record type specified, it will return
   * an array of this interface.
   *
   * @category Network
   */
  export interface SRVRecord {
    priority: number;
    weight: number;
    port: number;
    target: string;
  }

  /** @category Network */
  export function resolveDns(
    query: string,
    recordType: "A" | "AAAA" | "ANAME" | "CNAME" | "NS" | "PTR",
    options?: ResolveDnsOptions,
  ): Promise<string[]>;

  /** @category Network */
  export function resolveDns(
    query: string,
    recordType: "CAA",
    options?: ResolveDnsOptions,
  ): Promise<CAARecord[]>;

  /** @category Network */
  export function resolveDns(
    query: string,
    recordType: "MX",
    options?: ResolveDnsOptions,
  ): Promise<MXRecord[]>;

  /** @category Network */
  export function resolveDns(
    query: string,
    recordType: "NAPTR",
    options?: ResolveDnsOptions,
  ): Promise<NAPTRRecord[]>;

  /** @category Network */
  export function resolveDns(
    query: string,
    recordType: "SOA",
    options?: ResolveDnsOptions,
  ): Promise<SOARecord[]>;

  /** @category Network */
  export function resolveDns(
    query: string,
    recordType: "SRV",
    options?: ResolveDnsOptions,
  ): Promise<SRVRecord[]>;

  /** @category Network */
  export function resolveDns(
    query: string,
    recordType: "TXT",
    options?: ResolveDnsOptions,
  ): Promise<string[][]>;

  /**
   * Performs DNS resolution against the given query, returning resolved records.
   * Fails in the cases such as:
   * - the query is in invalid format
   * - the options have an invalid parameter, e.g. `nameServer.port` is beyond the range of 16-bit unsigned integer
   * - timed out
   *
   * ```ts
   * const a = await Deno.resolveDns("example.com", "A");
   *
   * const aaaa = await Deno.resolveDns("example.com", "AAAA", {
   *   nameServer: { ipAddr: "8.8.8.8", port: 53 },
   * });
   * ```
   *
   * Requires `allow-net` permission.
   *
   * @tags allow-net
   * @category Network
   */
  export function resolveDns(
    query: string,
    recordType: RecordType,
    options?: ResolveDnsOptions,
  ): Promise<
    | string[]
    | CAARecord[]
    | MXRecord[]
    | NAPTRRecord[]
    | SOARecord[]
    | SRVRecord[]
    | string[][]
  >;

  /**
   * Make the timer of the given `id` block the event loop from finishing.
   *
   * @category Timers
   */
  export function refTimer(id: number): void;

  /**
   * Make the timer of the given `id` not block the event loop from finishing.
   *
   * @category Timers
   */
  export function unrefTimer(id: number): void;
}

// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.

// deno-lint-ignore-file no-explicit-any

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

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

// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.

// deno-lint-ignore-file no-explicit-any

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

/** @category Web APIs */
declare class URLSearchParams {
  constructor(
    init?: string[][] | Record<string, string> | string | URLSearchParams,
  );
  static toString(): string;

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

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

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

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

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

  /** Sets the value associated with a given search parameter to the
   * given value. If there were several matching values, this method
   * deletes the others. If the search parameter doesn't exist, this
   * method creates it.
   *
   * ```ts
   * searchParams.set('name', 'value');
   * ```
   */
  set(name: string, value: string): void;

  /** Sort all key/value pairs contained in this object in place and
   * return undefined. The sort order is according to Unicode code
   * points of the keys.
   *
   * ```ts
   * searchParams.sort();
   * ```
   */
  sort(): void;

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

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

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

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

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

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

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

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

/** @category Web APIs */
declare interface URLPatternInit {
  protocol?: string;
  username?: string;
  password?: string;
  hostname?: string;
  port?: string;
  pathname?: string;
  search?: string;
  hash?: string;
  baseURL?: string;
}

/** @category Web APIs */
declare type URLPatternInput = string | URLPatternInit;

/** @category Web APIs */
declare interface URLPatternComponentResult {
  input: string;
  groups: Record<string, string>;
}

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

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

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

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

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

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

// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.

// deno-lint-ignore-file no-explicit-any no-var

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

/** @category DOM Events */
declare class DOMException extends Error {
  constructor(message?: string, name?: string);
  readonly name: string;
  readonly message: string;
  readonly code: number;
}

/** @category DOM Events */
interface EventInit {
  bubbles?: boolean;
  cancelable?: boolean;
  composed?: boolean;
}

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

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

/** @category DOM Events */
interface EventListener {
  (evt: Event): void | Promise<void>;
}

/** @category DOM Events */
interface EventListenerObject {
  handleEvent(evt: Event): void | Promise<void>;
}

/** @category DOM Events */
declare type EventListenerOrEventListenerObject =
  | EventListener
  | EventListenerObject;

/** @category DOM Events */
interface AddEventListenerOptions extends EventListenerOptions {
  once?: boolean;
  passive?: boolean;
  signal?: AbortSignal;
}

/** @category DOM Events */
interface EventListenerOptions {
  capture?: boolean;
}

/** @category DOM Events */
interface ProgressEventInit extends EventInit {
  lengthComputable?: boolean;
  loaded?: number;
  total?: number;
}

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

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

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

/** @category Encoding API */
declare interface TextDecoderOptions {
  fatal?: boolean;
  ignoreBOM?: boolean;
}

/** @category Encoding API */
declare interface TextDecodeOptions {
  stream?: boolean;
}

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

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

/** @category Encoding API */
declare var TextDecoder: {
  prototype: TextDecoder;
  new (label?: string, options?: TextDecoderOptions): TextDecoder;
};

/** @category Encoding API */
declare interface TextEncoderEncodeIntoResult {
  read: number;
  written: number;
}

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

/** @category Encoding API */
declare var TextEncoder: {
  prototype: TextEncoder;
  new (): TextEncoder;
};

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

/** @category Encoding API */
declare var TextDecoderStream: {
  prototype: TextDecoderStream;
  new (label?: string, options?: TextDecoderOptions): TextDecoderStream;
};

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

/** @category Encoding API */
declare var TextEncoderStream: {
  prototype: TextEncoderStream;
  new (): TextEncoderStream;
};

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

/** @category Web APIs */
interface AbortSignalEventMap {
  abort: Event;
}

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

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

/** @category Web APIs */
declare var AbortSignal: {
  prototype: AbortSignal;
  new (): AbortSignal;
  abort(reason?: any): AbortSignal;
  timeout(milliseconds: number): AbortSignal;
};

/** @category Web File API */
interface FileReaderEventMap {
  "abort": ProgressEvent<FileReader>;
  "error": ProgressEvent<FileReader>;
  "load": ProgressEvent<FileReader>;
  "loadend": ProgressEvent<FileReader>;
  "loadstart": ProgressEvent<FileReader>;
  "progress": ProgressEvent<FileReader>;
}

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

/** @category Web File API */
declare var FileReader: {
  prototype: FileReader;
  new (): FileReader;
  readonly DONE: number;
  readonly EMPTY: number;
  readonly LOADING: number;
};

/** @category Web File API */
type BlobPart = BufferSource | Blob | string;

/** @category Web File API */
interface BlobPropertyBag {
  type?: string;
  endings?: "transparent" | "native";
}

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

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

/** @category Web File API */
interface FilePropertyBag extends BlobPropertyBag {
  lastModified?: number;
}

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

  readonly lastModified: number;
  readonly name: string;
}

/** @category Streams API */
interface ReadableStreamReadDoneResult<T> {
  done: true;
  value?: T;
}

/** @category Streams API */
interface ReadableStreamReadValueResult<T> {
  done: false;
  value: T;
}

/** @category Streams API */
type ReadableStreamReadResult<T> =
  | ReadableStreamReadValueResult<T>
  | ReadableStreamReadDoneResult<T>;

/** @category Streams API */
interface ReadableStreamDefaultReader<R = any> {
  readonly closed: Promise<void>;
  cancel(reason?: any): Promise<void>;
  read(): Promise<ReadableStreamReadResult<R>>;
  releaseLock(): void;
}

/** @category Streams API */
interface ReadableStreamBYOBReadDoneResult<V extends ArrayBufferView> {
  done: true;
  value?: V;
}

/** @category Streams API */
interface ReadableStreamBYOBReadValueResult<V extends ArrayBufferView> {
  done: false;
  value: V;
}

/** @category Streams API */
type ReadableStreamBYOBReadResult<V extends ArrayBufferView> =
  | ReadableStreamBYOBReadDoneResult<V>
  | ReadableStreamBYOBReadValueResult<V>;

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

/** @category Streams API */
interface ReadableStreamBYOBRequest {
  readonly view: ArrayBufferView | null;
  respond(bytesWritten: number): void;
  respondWithNewView(view: ArrayBufferView): void;
}

/** @category Streams API */
declare var ReadableStreamDefaultReader: {
  prototype: ReadableStreamDefaultReader;
  new <R>(stream: ReadableStream<R>): ReadableStreamDefaultReader<R>;
};

/** @category Streams API */
interface ReadableStreamReader<R = any> {
  cancel(): Promise<void>;
  read(): Promise<ReadableStreamReadResult<R>>;
  releaseLock(): void;
}

/** @category Streams API */
declare var ReadableStreamReader: {
  prototype: ReadableStreamReader;
  new (): ReadableStreamReader;
};

/** @category Streams API */
interface ReadableByteStreamControllerCallback {
  (controller: ReadableByteStreamController): void | PromiseLike<void>;
}

/** @category Streams API */
interface UnderlyingByteSource {
  autoAllocateChunkSize?: number;
  cancel?: ReadableStreamErrorCallback;
  pull?: ReadableByteStreamControllerCallback;
  start?: ReadableByteStreamControllerCallback;
  type: "bytes";
}

/** @category Streams API */
interface UnderlyingSink<W = any> {
  abort?: WritableStreamErrorCallback;
  close?: WritableStreamDefaultControllerCloseCallback;
  start?: WritableStreamDefaultControllerStartCallback;
  type?: undefined;
  write?: WritableStreamDefaultControllerWriteCallback<W>;
}

/** @category Streams API */
interface UnderlyingSource<R = any> {
  cancel?: ReadableStreamErrorCallback;
  pull?: ReadableStreamDefaultControllerCallback<R>;
  start?: ReadableStreamDefaultControllerCallback<R>;
  type?: undefined;
}

/** @category Streams API */
interface ReadableStreamErrorCallback {
  (reason: any): void | PromiseLike<void>;
}

/** @category Streams API */
interface ReadableStreamDefaultControllerCallback<R> {
  (controller: ReadableStreamDefaultController<R>): void | PromiseLike<void>;
}

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

/** @category Streams API */
declare var ReadableStreamDefaultController: {
  prototype: ReadableStreamDefaultController;
  new (): ReadableStreamDefaultController;
};

/** @category Streams API */
interface ReadableByteStreamController {
  readonly byobRequest: ReadableStreamBYOBRequest | null;
  readonly desiredSize: number | null;
  close(): void;
  enqueue(chunk: ArrayBufferView): void;
  error(error?: any): void;
}

/** @category Streams API */
declare var ReadableByteStreamController: {
  prototype: ReadableByteStreamController;
  new (): ReadableByteStreamController;
};

/** @category Streams API */
interface PipeOptions {
  preventAbort?: boolean;
  preventCancel?: boolean;
  preventClose?: boolean;
  signal?: AbortSignal;
}

/** @category Streams API */
interface QueuingStrategySizeCallback<T = any> {
  (chunk: T): number;
}

/** @category Streams API */
interface QueuingStrategy<T = any> {
  highWaterMark?: number;
  size?: QueuingStrategySizeCallback<T>;
}

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

/** @category Streams API */
declare var CountQueuingStrategy: {
  prototype: CountQueuingStrategy;
  new (options: { highWaterMark: number }): CountQueuingStrategy;
};

/** @category Streams API */
interface ByteLengthQueuingStrategy extends QueuingStrategy<ArrayBufferView> {
  highWaterMark: number;
  size(chunk: ArrayBufferView): number;
}

/** @category Streams API */
declare var ByteLengthQueuingStrategy: {
  prototype: ByteLengthQueuingStrategy;
  new (options: { highWaterMark: number }): ByteLengthQueuingStrategy;
};

/** This Streams API interface represents a readable stream of byte data. The
 * Fetch API offers a concrete instance of a ReadableStream through the body
 * property of a Response object.
 *
 * @category Streams API
 */
interface ReadableStream<R = any> {
  readonly locked: boolean;
  cancel(reason?: any): Promise<void>;
  getReader(options: { mode: "byob" }): ReadableStreamBYOBReader;
  getReader(options?: { mode?: undefined }): ReadableStreamDefaultReader<R>;
  pipeThrough<T>(
    { writable, readable }: {
      writable: WritableStream<R>;
      readable: ReadableStream<T>;
    },
    options?: PipeOptions,
  ): ReadableStream<T>;
  pipeTo(dest: WritableStream<R>, options?: PipeOptions): Promise<void>;
  tee(): [ReadableStream<R>, ReadableStream<R>];
  [Symbol.asyncIterator](options?: {
    preventCancel?: boolean;
  }): AsyncIterableIterator<R>;
}

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

/** @category Streams API */
interface WritableStreamDefaultControllerCloseCallback {
  (): void | PromiseLike<void>;
}

/** @category Streams API */
interface WritableStreamDefaultControllerStartCallback {
  (controller: WritableStreamDefaultController): void | PromiseLike<void>;
}

/** @category Streams API */
interface WritableStreamDefaultControllerWriteCallback<W> {
  (chunk: W, controller: WritableStreamDefaultController):
    | void
    | PromiseLike<
      void
    >;
}

/** @category Streams API */
interface WritableStreamErrorCallback {
  (reason: any): void | PromiseLike<void>;
}

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

/** @category Streams API */
declare var WritableStream: {
  prototype: WritableStream;
  new <W = any>(
    underlyingSink?: UnderlyingSink<W>,
    strategy?: QueuingStrategy<W>,
  ): WritableStream<W>;
};

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

/** @category Streams API */
declare var WritableStreamDefaultController: WritableStreamDefaultController;

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

/** @category Streams API */
declare var WritableStreamDefaultWriter: {
  prototype: WritableStreamDefaultWriter;
  new (): WritableStreamDefaultWriter;
};

/** @category Streams API */
interface TransformStream<I = any, O = any> {
  readonly readable: ReadableStream<O>;
  readonly writable: WritableStream<I>;
}

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

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

/** @category Streams API */
declare var TransformStreamDefaultController: TransformStreamDefaultController;

/** @category Streams API */
interface Transformer<I = any, O = any> {
  flush?: TransformStreamDefaultControllerCallback<O>;
  readableType?: undefined;
  start?: TransformStreamDefaultControllerCallback<O>;
  transform?: TransformStreamDefaultControllerTransformCallback<I, O>;
  writableType?: undefined;
}

/** @category Streams API */
interface TransformStreamDefaultControllerCallback<O> {
  (controller: TransformStreamDefaultController<O>): void | PromiseLike<void>;
}

/** @category Streams API */
interface TransformStreamDefaultControllerTransformCallback<I, O> {
  (
    chunk: I,
    controller: TransformStreamDefaultController<O>,
  ): void | PromiseLike<void>;
}

/** @category Streams API */
interface MessageEventInit<T = any> extends EventInit {
  data?: T;
  origin?: string;
  lastEventId?: string;
}

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

/** @category DOM APIs */
type Transferable = ArrayBuffer | MessagePort;

/**
 * This type has been renamed to StructuredSerializeOptions. Use that type for
 * new code.
 *
 * @deprecated use `StructuredSerializeOptions` instead.
 * @category DOM APIs
 */
type PostMessageOptions = StructuredSerializeOptions;

/** @category DOM APIs */
interface StructuredSerializeOptions {
  transfer?: Transferable[];
}

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

/** @category DOM APIs */
interface MessagePortEventMap {
  "message": MessageEvent;
  "messageerror": MessageEvent;
}

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

/**
 * Creates a deep copy of a given value using the structured clone algorithm.
 *
 * Unlike a shallow copy, a deep copy does not hold the same references as the
 * source object, meaning its properties can be changed without affecting the
 * source. For more details, see
 * [MDN](https://developer.mozilla.org/en-US/docs/Glossary/Deep_copy).
 *
 * Throws a `DataCloneError` if any part of the input value is not
 * serializable.
 *
 * @example
 * ```ts
 * const object = { x: 0, y: 1 };
 *
 * const deepCopy = structuredClone(object);
 * deepCopy.x = 1;
 * console.log(deepCopy.x, object.x); // 1 0
 *
 * const shallowCopy = object;
 * shallowCopy.x = 1;
 * // shallowCopy.x is pointing to the same location in memory as object.x
 * console.log(shallowCopy.x, object.x); // 1 1
 * ```
 *
 * @category DOM APIs
 */
declare function structuredClone(
  value: any,
  options?: StructuredSerializeOptions,
): any;

/**
 * An API for compressing a stream of data.
 *
 * @example
 * ```ts
 * await Deno.stdin.readable
 *   .pipeThrough(new CompressionStream("gzip"))
 *   .pipeTo(Deno.stdout.writable);
 * ```
 *
 * @category Compression Streams API
 */
declare class CompressionStream {
  /**
   * Creates a new `CompressionStream` object which compresses a stream of
   * data.
   *
   * Throws a `TypeError` if the format passed to the constructor is not
   * supported.
   */
  constructor(format: string);

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

/**
 * An API for decompressing a stream of data.
 *
 * @example
 * ```ts
 * const input = await Deno.open("./file.txt.gz");
 * const output = await Deno.create("./file.txt");
 *
 * await input.readable
 *   .pipeThrough(new DecompressionStream("gzip"))
 *   .pipeTo(output.writable);
 * ```
 *
 * @category Compression Streams API
 */
declare class DecompressionStream {
  /**
   * Creates a new `DecompressionStream` object which decompresses a stream of
   * data.
   *
   * Throws a `TypeError` if the format passed to the constructor is not
   * supported.
   */
  constructor(format: string);

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

/** Dispatch an uncaught exception. Similar to a synchronous version of:
 * ```ts
 * setTimeout(() => { throw error; }, 0);
 * ```
 * The error can not be caught with a `try/catch` block. An error event will
 * be dispatched to the global scope. You can prevent the error from being
 * reported to the console with `Event.prototype.preventDefault()`:
 * ```ts
 * addEventListener("error", (event) => {
 *   event.preventDefault();
 * });
 * reportError(new Error("foo")); // Will not be reported.
 * ```
 * In Deno, this error will terminate the process if not intercepted like above.
 *
 * @category Web APIs
 */
declare function reportError(
  error: any,
): void;

// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.

// deno-lint-ignore-file no-explicit-any no-var

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

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

/** @category Fetch API */
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".
 *
 * @category Fetch API
 */
interface FormData {
  append(name: string, value: string | Blob, fileName?: string): void;
  delete(name: string): void;
  get(name: string): FormDataEntryValue | null;
  getAll(name: string): FormDataEntryValue[];
  has(name: string): boolean;
  set(name: string, value: string | Blob, fileName?: string): void;
  keys(): IterableIterator<string>;
  values(): IterableIterator<string>;
  entries(): IterableIterator<[string, FormDataEntryValue]>;
  [Symbol.iterator](): IterableIterator<[string, FormDataEntryValue]>;
  forEach(
    callback: (value: FormDataEntryValue, key: string, parent: this) => void,
    thisArg?: any,
  ): void;
}

/** @category Fetch API */
declare var FormData: {
  prototype: FormData;
  new (): FormData;
};

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

/** @category Fetch API */
type HeadersInit = Headers | string[][] | Record<string, string>;

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

/** @category Fetch API */
declare class Headers implements DomIterable<string, string> {
  constructor(init?: HeadersInit);

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

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

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

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

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

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

/** @category Fetch API */
interface ResponseInit {
  headers?: HeadersInit;
  status?: number;
  statusText?: string;
}

/** @category Fetch API */
type ResponseType =
  | "basic"
  | "cors"
  | "default"
  | "error"
  | "opaque"
  | "opaqueredirect";

/** This Fetch API interface represents the response to a request.
 *
 * @category Fetch API
 */
declare class Response implements Body {
  constructor(body?: BodyInit | null, init?: ResponseInit);
  static json(data: unknown, init?: ResponseInit): Response;
  static error(): Response;
  static redirect(url: string | URL, 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.
 *
 * ```ts
 * 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();
 * ```
 *
 * @tags allow-net, allow-read
 * @category Fetch API
 */
declare function fetch(
  input: URL | Request | string,
  init?: RequestInit,
): Promise<Response>;

// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.

// deno-lint-ignore-file no-explicit-any no-empty-interface

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

/** @category WebGPU */
interface GPUObjectBase {
  label: string;
}

/** @category WebGPU */
declare interface GPUObjectDescriptorBase {
  label?: string;
}

/** @category WebGPU */
declare class GPUSupportedLimits {
  maxTextureDimension1D?: number;
  maxTextureDimension2D?: number;
  maxTextureDimension3D?: number;
  maxTextureArrayLayers?: number;
  maxBindGroups?: number;
  maxDynamicUniformBuffersPerPipelineLayout?: number;
  maxDynamicStorageBuffersPerPipelineLayout?: number;
  maxSampledTexturesPerShaderStage?: number;
  maxSamplersPerShaderStage?: number;
  maxStorageBuffersPerShaderStage?: number;
  maxStorageTexturesPerShaderStage?: number;
  maxUniformBuffersPerShaderStage?: number;
  maxUniformBufferBindingSize?: number;
  maxStorageBufferBindingSize?: number;
  minUniformBufferOffsetAlignment?: number;
  minStorageBufferOffsetAlignment?: number;
  maxVertexBuffers?: number;
  maxVertexAttributes?: number;
  maxVertexBufferArrayStride?: number;
  maxInterStageShaderComponents?: number;
  maxComputeWorkgroupStorageSize?: number;
  maxComputeInvocationsPerWorkgroup?: number;
  maxComputeWorkgroupSizeX?: number;
  maxComputeWorkgroupSizeY?: number;
  maxComputeWorkgroupSizeZ?: number;
  maxComputeWorkgroupsPerDimension?: number;
}

/** @category WebGPU */
declare class GPUSupportedFeatures {
  forEach(
    callbackfn: (
      value: GPUFeatureName,
      value2: GPUFeatureName,
      set: Set<GPUFeatureName>,
    ) => void,
    thisArg?: any,
  ): void;
  has(value: GPUFeatureName): boolean;
  size: number;
  [
    Symbol
      .iterator
  ](): IterableIterator<GPUFeatureName>;
  entries(): IterableIterator<[GPUFeatureName, GPUFeatureName]>;
  keys(): IterableIterator<GPUFeatureName>;
  values(): IterableIterator<GPUFeatureName>;
}

/** @category WebGPU */
declare class GPUAdapterInfo {
  readonly vendor: string;
  readonly architecture: string;
  readonly device: string;
  readonly description: string;
}

/** @category WebGPU */
declare class GPU {
  requestAdapter(
    options?: GPURequestAdapterOptions,
  ): Promise<GPUAdapter | null>;
}

/** @category WebGPU */
declare interface GPURequestAdapterOptions {
  powerPreference?: GPUPowerPreference;
  forceFallbackAdapter?: boolean;
}

/** @category WebGPU */
declare type GPUPowerPreference = "low-power" | "high-performance";

/** @category WebGPU */
declare class GPUAdapter {
  readonly features: GPUSupportedFeatures;
  readonly limits: GPUSupportedLimits;
  readonly isFallbackAdapter: boolean;

  requestDevice(descriptor?: GPUDeviceDescriptor): Promise<GPUDevice>;
  requestAdapterInfo(unmaskHints?: string[]): Promise<GPUAdapterInfo>;
}

/** @category WebGPU */
declare interface GPUDeviceDescriptor extends GPUObjectDescriptorBase {
  requiredFeatures?: GPUFeatureName[];
  requiredLimits?: Record<string, number>;
}

/** @category WebGPU */
declare type GPUFeatureName =
  | "depth-clip-control"
  | "depth24unorm-stencil8"
  | "depth32float-stencil8"
  | "pipeline-statistics-query"
  | "texture-compression-bc"
  | "texture-compression-etc2"
  | "texture-compression-astc"
  | "timestamp-query"
  | "indirect-first-instance"
  | "shader-f16"
  // extended from spec
  | "mappable-primary-buffers"
  | "sampled-texture-binding-array"
  | "sampled-texture-array-dynamic-indexing"
  | "sampled-texture-array-non-uniform-indexing"
  | "unsized-binding-array"
  | "multi-draw-indirect"
  | "multi-draw-indirect-count"
  | "push-constants"
  | "address-mode-clamp-to-border"
  | "texture-adapter-specific-format-features"
  | "shader-float64"
  | "vertex-attribute-64bit";

/** @category WebGPU */
declare class GPUDevice extends EventTarget implements GPUObjectBase {
  label: string;

  readonly lost: Promise<GPUDeviceLostInfo>;
  pushErrorScope(filter: GPUErrorFilter): undefined;
  popErrorScope(): Promise<GPUError | null>;
  onuncapturederror:
    | ((this: GPUDevice, ev: GPUUncapturedErrorEvent) => any)
    | null;

  readonly features: GPUSupportedFeatures;
  readonly limits: GPUSupportedLimits;
  readonly queue: GPUQueue;

  destroy(): undefined;

  createBuffer(descriptor: GPUBufferDescriptor): GPUBuffer;
  createTexture(descriptor: GPUTextureDescriptor): GPUTexture;
  createSampler(descriptor?: GPUSamplerDescriptor): GPUSampler;

  createBindGroupLayout(
    descriptor: GPUBindGroupLayoutDescriptor,
  ): GPUBindGroupLayout;
  createPipelineLayout(
    descriptor: GPUPipelineLayoutDescriptor,
  ): GPUPipelineLayout;
  createBindGroup(descriptor: GPUBindGroupDescriptor): GPUBindGroup;

  createShaderModule(descriptor: GPUShaderModuleDescriptor): GPUShaderModule;
  createComputePipeline(
    descriptor: GPUComputePipelineDescriptor,
  ): GPUComputePipeline;
  createRenderPipeline(
    descriptor: GPURenderPipelineDescriptor,
  ): GPURenderPipeline;
  createComputePipelineAsync(
    descriptor: GPUComputePipelineDescriptor,
  ): Promise<GPUComputePipeline>;
  createRenderPipelineAsync(
    descriptor: GPURenderPipelineDescriptor,
  ): Promise<GPURenderPipeline>;

  createCommandEncoder(
    descriptor?: GPUCommandEncoderDescriptor,
  ): GPUCommandEncoder;
  createRenderBundleEncoder(
    descriptor: GPURenderBundleEncoderDescriptor,
  ): GPURenderBundleEncoder;

  createQuerySet(descriptor: GPUQuerySetDescriptor): GPUQuerySet;
}

/** @category WebGPU */
declare class GPUBuffer implements GPUObjectBase {
  label: string;

  mapAsync(
    mode: GPUMapModeFlags,
    offset?: number,
    size?: number,
  ): Promise<undefined>;
  getMappedRange(offset?: number, size?: number): ArrayBuffer;
  unmap(): undefined;

  destroy(): undefined;
}

/** @category WebGPU */
declare interface GPUBufferDescriptor extends GPUObjectDescriptorBase {
  size: number;
  usage: GPUBufferUsageFlags;
  mappedAtCreation?: boolean;
}

/** @category WebGPU */
declare type GPUBufferUsageFlags = number;

/** @category WebGPU */
declare class GPUBufferUsage {
  static MAP_READ: 0x0001;
  static MAP_WRITE: 0x0002;
  static COPY_SRC: 0x0004;
  static COPY_DST: 0x0008;
  static INDEX: 0x0010;
  static VERTEX: 0x0020;
  static UNIFORM: 0x0040;
  static STORAGE: 0x0080;
  static INDIRECT: 0x0100;
  static QUERY_RESOLVE: 0x0200;
}

/** @category WebGPU */
declare type GPUMapModeFlags = number;

/** @category WebGPU */
declare class GPUMapMode {
  static READ: 0x0001;
  static WRITE: 0x0002;
}

/** @category WebGPU */
declare class GPUTexture implements GPUObjectBase {
  label: string;

  createView(descriptor?: GPUTextureViewDescriptor): GPUTextureView;
  destroy(): undefined;
}

/** @category WebGPU */
declare interface GPUTextureDescriptor extends GPUObjectDescriptorBase {
  size: GPUExtent3D;
  mipLevelCount?: number;
  sampleCount?: number;
  dimension?: GPUTextureDimension;
  format: GPUTextureFormat;
  usage: GPUTextureUsageFlags;
}

/** @category WebGPU */
declare type GPUTextureDimension = "1d" | "2d" | "3d";

/** @category WebGPU */
declare type GPUTextureUsageFlags = number;

/** @category WebGPU */
declare class GPUTextureUsage {
  static COPY_SRC: 0x01;
  static COPY_DST: 0x02;
  static TEXTURE_BINDING: 0x04;
  static STORAGE_BINDING: 0x08;
  static RENDER_ATTACHMENT: 0x10;
}

/** @category WebGPU */
declare class GPUTextureView implements GPUObjectBase {
  label: string;
}

/** @category WebGPU */
declare interface GPUTextureViewDescriptor extends GPUObjectDescriptorBase {
  format?: GPUTextureFormat;
  dimension?: GPUTextureViewDimension;
  aspect?: GPUTextureAspect;
  baseMipLevel?: number;
  mipLevelCount?: number;
  baseArrayLayer?: number;
  arrayLayerCount?: number;
}

/** @category WebGPU */
declare type GPUTextureViewDimension =
  | "1d"
  | "2d"
  | "2d-array"
  | "cube"
  | "cube-array"
  | "3d";

/** @category WebGPU */
declare type GPUTextureAspect = "all" | "stencil-only" | "depth-only";

/** @category WebGPU */
declare type GPUTextureFormat =
  | "r8unorm"
  | "r8snorm"
  | "r8uint"
  | "r8sint"
  | "r16uint"
  | "r16sint"
  | "r16float"
  | "rg8unorm"
  | "rg8snorm"
  | "rg8uint"
  | "rg8sint"
  | "r32uint"
  | "r32sint"
  | "r32float"
  | "rg16uint"
  | "rg16sint"
  | "rg16float"
  | "rgba8unorm"
  | "rgba8unorm-srgb"
  | "rgba8snorm"
  | "rgba8uint"
  | "rgba8sint"
  | "bgra8unorm"
  | "bgra8unorm-srgb"
  | "rgb9e5ufloat"
  | "rgb10a2unorm"
  | "rg11b10ufloat"
  | "rg32uint"
  | "rg32sint"
  | "rg32float"
  | "rgba16uint"
  | "rgba16sint"
  | "rgba16float"
  | "rgba32uint"
  | "rgba32sint"
  | "rgba32float"
  | "stencil8"
  | "depth16unorm"
  | "depth24plus"
  | "depth24plus-stencil8"
  | "depth32float"
  | "depth24unorm-stencil8"
  | "depth32float-stencil8"
  | "bc1-rgba-unorm"
  | "bc1-rgba-unorm-srgb"
  | "bc2-rgba-unorm"
  | "bc2-rgba-unorm-srgb"
  | "bc3-rgba-unorm"
  | "bc3-rgba-unorm-srgb"
  | "bc4-r-unorm"
  | "bc4-r-snorm"
  | "bc5-rg-unorm"
  | "bc5-rg-snorm"
  | "bc6h-rgb-ufloat"
  | "bc6h-rgb-float"
  | "bc7-rgba-unorm"
  | "bc7-rgba-unorm-srgb"
  | "etc2-rgb8unorm"
  | "etc2-rgb8unorm-srgb"
  | "etc2-rgb8a1unorm"
  | "etc2-rgb8a1unorm-srgb"
  | "etc2-rgba8unorm"
  | "etc2-rgba8unorm-srgb"
  | "eac-r11unorm"
  | "eac-r11snorm"
  | "eac-rg11unorm"
  | "eac-rg11snorm"
  | "astc-4x4-unorm"
  | "astc-4x4-unorm-srgb"
  | "astc-5x4-unorm"
  | "astc-5x4-unorm-srgb"
  | "astc-5x5-unorm"
  | "astc-5x5-unorm-srgb"
  | "astc-6x5-unorm"
  | "astc-6x5-unorm-srgb"
  | "astc-6x6-unorm"
  | "astc-6x6-unorm-srgb"
  | "astc-8x5-unorm"
  | "astc-8x5-unorm-srgb"
  | "astc-8x6-unorm"
  | "astc-8x6-unorm-srgb"
  | "astc-8x8-unorm"
  | "astc-8x8-unorm-srgb"
  | "astc-10x5-unorm"
  | "astc-10x5-unorm-srgb"
  | "astc-10x6-unorm"
  | "astc-10x6-unorm-srgb"
  | "astc-10x8-unorm"
  | "astc-10x8-unorm-srgb"
  | "astc-10x10-unorm"
  | "astc-10x10-unorm-srgb"
  | "astc-12x10-unorm"
  | "astc-12x10-unorm-srgb"
  | "astc-12x12-unorm"
  | "astc-12x12-unorm-srgb";

/** @category WebGPU */
declare class GPUSampler implements GPUObjectBase {
  label: string;
}

/** @category WebGPU */
declare interface GPUSamplerDescriptor extends GPUObjectDescriptorBase {
  addressModeU?: GPUAddressMode;
  addressModeV?: GPUAddressMode;
  addressModeW?: GPUAddressMode;
  magFilter?: GPUFilterMode;
  minFilter?: GPUFilterMode;
  mipmapFilter?: GPUMipmapFilterMode;
  lodMinClamp?: number;
  lodMaxClamp?: number;
  compare?: GPUCompareFunction;
  maxAnisotropy?: number;
}

/** @category WebGPU */
declare type GPUAddressMode = "clamp-to-edge" | "repeat" | "mirror-repeat";

/** @category WebGPU */
declare type GPUFilterMode = "nearest" | "linear";

/** @category WebGPU */
declare type GPUMipmapFilterMode = "nearest" | "linear";

/** @category WebGPU */
declare type GPUCompareFunction =
  | "never"
  | "less"
  | "equal"
  | "less-equal"
  | "greater"
  | "not-equal"
  | "greater-equal"
  | "always";

/** @category WebGPU */
declare class GPUBindGroupLayout implements GPUObjectBase {
  label: string;
}

/** @category WebGPU */
declare interface GPUBindGroupLayoutDescriptor extends GPUObjectDescriptorBase {
  entries: GPUBindGroupLayoutEntry[];
}

/** @category WebGPU */
declare interface GPUBindGroupLayoutEntry {
  binding: number;
  visibility: GPUShaderStageFlags;

  buffer?: GPUBufferBindingLayout;
  sampler?: GPUSamplerBindingLayout;
  texture?: GPUTextureBindingLayout;
  storageTexture?: GPUStorageTextureBindingLayout;
}

/** @category WebGPU */
declare type GPUShaderStageFlags = number;

/** @category WebGPU */
declare class GPUShaderStage {
  static VERTEX: 0x1;
  static FRAGMENT: 0x2;
  static COMPUTE: 0x4;
}

/** @category WebGPU */
declare interface GPUBufferBindingLayout {
  type?: GPUBufferBindingType;
  hasDynamicOffset?: boolean;
  minBindingSize?: number;
}

/** @category WebGPU */
declare type GPUBufferBindingType = "uniform" | "storage" | "read-only-storage";

/** @category WebGPU */
declare interface GPUSamplerBindingLayout {
  type?: GPUSamplerBindingType;
}

/** @category WebGPU */
declare type GPUSamplerBindingType =
  | "filtering"
  | "non-filtering"
  | "comparison";

/** @category WebGPU */
declare interface GPUTextureBindingLayout {
  sampleType?: GPUTextureSampleType;
  viewDimension?: GPUTextureViewDimension;
  multisampled?: boolean;
}

/** @category WebGPU */
declare type GPUTextureSampleType =
  | "float"
  | "unfilterable-float"
  | "depth"
  | "sint"
  | "uint";

/** @category WebGPU */
declare type GPUStorageTextureAccess = "write-only";

/** @category WebGPU */
declare interface GPUStorageTextureBindingLayout {
  access: GPUStorageTextureAccess;
  format: GPUTextureFormat;
  viewDimension?: GPUTextureViewDimension;
}

/** @category WebGPU */
declare class GPUBindGroup implements GPUObjectBase {
  label: string;
}

/** @category WebGPU */
declare interface GPUBindGroupDescriptor extends GPUObjectDescriptorBase {
  layout: GPUBindGroupLayout;
  entries: GPUBindGroupEntry[];
}

/** @category WebGPU */
declare type GPUBindingResource =
  | GPUSampler
  | GPUTextureView
  | GPUBufferBinding;

/** @category WebGPU */
declare interface GPUBindGroupEntry {
  binding: number;
  resource: GPUBindingResource;
}

/** @category WebGPU */
declare interface GPUBufferBinding {
  buffer: GPUBuffer;
  offset?: number;
  size?: number;
}

/** @category WebGPU */
declare class GPUPipelineLayout implements GPUObjectBase {
  label: string;
}

/** @category WebGPU */
declare interface GPUPipelineLayoutDescriptor extends GPUObjectDescriptorBase {
  bindGroupLayouts: GPUBindGroupLayout[];
}

/** @category WebGPU */
declare type GPUCompilationMessageType = "error" | "warning" | "info";

/** @category WebGPU */
declare interface GPUCompilationMessage {
  readonly message: string;
  readonly type: GPUCompilationMessageType;
  readonly lineNum: number;
  readonly linePos: number;
}

/** @category WebGPU */
declare interface GPUCompilationInfo {
  readonly messages: ReadonlyArray<GPUCompilationMessage>;
}

/** @category WebGPU */
declare class GPUShaderModule implements GPUObjectBase {
  label: string;

  compilationInfo(): Promise<GPUCompilationInfo>;
}

/** @category WebGPU */
declare interface GPUShaderModuleDescriptor extends GPUObjectDescriptorBase {
  code: string;
  sourceMap?: any;
}

/** @category WebGPU */
declare type GPUAutoLayoutMode = "auto";

/** @category WebGPU */
declare interface GPUPipelineDescriptorBase extends GPUObjectDescriptorBase {
  layout: GPUPipelineLayout | GPUAutoLayoutMode;
}

/** @category WebGPU */
declare interface GPUPipelineBase {
  getBindGroupLayout(index: number): GPUBindGroupLayout;
}

/** @category WebGPU */
declare interface GPUProgrammableStage {
  module: GPUShaderModule;
  entryPoint: string;
}

/** @category WebGPU */
declare class GPUComputePipeline implements GPUObjectBase, GPUPipelineBase {
  label: string;

  getBindGroupLayout(index: number): GPUBindGroupLayout;
}

/** @category WebGPU */
declare interface GPUComputePipelineDescriptor
  extends GPUPipelineDescriptorBase {
  compute: GPUProgrammableStage;
}

/** @category WebGPU */
declare class GPURenderPipeline implements GPUObjectBase, GPUPipelineBase {
  label: string;

  getBindGroupLayout(index: number): GPUBindGroupLayout;
}

/** @category WebGPU */
declare interface GPURenderPipelineDescriptor
  extends GPUPipelineDescriptorBase {
  vertex: GPUVertexState;
  primitive?: GPUPrimitiveState;
  depthStencil?: GPUDepthStencilState;
  multisample?: GPUMultisampleState;
  fragment?: GPUFragmentState;
}

/** @category WebGPU */
declare interface GPUPrimitiveState {
  topology?: GPUPrimitiveTopology;
  stripIndexFormat?: GPUIndexFormat;
  frontFace?: GPUFrontFace;
  cullMode?: GPUCullMode;
  unclippedDepth?: boolean;
}

/** @category WebGPU */
declare type GPUPrimitiveTopology =
  | "point-list"
  | "line-list"
  | "line-strip"
  | "triangle-list"
  | "triangle-strip";

/** @category WebGPU */
declare type GPUFrontFace = "ccw" | "cw";

/** @category WebGPU */
declare type GPUCullMode = "none" | "front" | "back";

/** @category WebGPU */
declare interface GPUMultisampleState {
  count?: number;
  mask?: number;
  alphaToCoverageEnabled?: boolean;
}

/** @category WebGPU */
declare interface GPUFragmentState extends GPUProgrammableStage {
  targets: (GPUColorTargetState | null)[];
}

/** @category WebGPU */
declare interface GPUColorTargetState {
  format: GPUTextureFormat;

  blend?: GPUBlendState;
  writeMask?: GPUColorWriteFlags;
}

/** @category WebGPU */
declare interface GPUBlendState {
  color: GPUBlendComponent;
  alpha: GPUBlendComponent;
}

/** @category WebGPU */
declare type GPUColorWriteFlags = number;

/** @category WebGPU */
declare class GPUColorWrite {
  static RED: 0x1;
  static GREEN: 0x2;
  static BLUE: 0x4;
  static ALPHA: 0x8;
  static ALL: 0xF;
}

/** @category WebGPU */
declare interface GPUBlendComponent {
  operation?: GPUBlendOperation;
  srcFactor?: GPUBlendFactor;
  dstFactor?: GPUBlendFactor;
}

/** @category WebGPU */
declare type GPUBlendFactor =
  | "zero"
  | "one"
  | "src"
  | "one-minus-src"
  | "src-alpha"
  | "one-minus-src-alpha"
  | "dst"
  | "one-minus-dst"
  | "dst-alpha"
  | "one-minus-dst-alpha"
  | "src-alpha-saturated"
  | "constant"
  | "one-minus-constant";

/** @category WebGPU */
declare type GPUBlendOperation =
  | "add"
  | "subtract"
  | "reverse-subtract"
  | "min"
  | "max";

/** @category WebGPU */
declare interface GPUDepthStencilState {
  format: GPUTextureFormat;

  depthWriteEnabled?: boolean;
  depthCompare?: GPUCompareFunction;

  stencilFront?: GPUStencilFaceState;
  stencilBack?: GPUStencilFaceState;

  stencilReadMask?: number;
  stencilWriteMask?: number;

  depthBias?: number;
  depthBiasSlopeScale?: number;
  depthBiasClamp?: number;
}

/** @category WebGPU */
declare interface GPUStencilFaceState {
  compare?: GPUCompareFunction;
  failOp?: GPUStencilOperation;
  depthFailOp?: GPUStencilOperation;
  passOp?: GPUStencilOperation;
}

/** @category WebGPU */
declare type GPUStencilOperation =
  | "keep"
  | "zero"
  | "replace"
  | "invert"
  | "increment-clamp"
  | "decrement-clamp"
  | "increment-wrap"
  | "decrement-wrap";

/** @category WebGPU */
declare type GPUIndexFormat = "uint16" | "uint32";

/** @category WebGPU */
declare type GPUVertexFormat =
  | "uint8x2"
  | "uint8x4"
  | "sint8x2"
  | "sint8x4"
  | "unorm8x2"
  | "unorm8x4"
  | "snorm8x2"
  | "snorm8x4"
  | "uint16x2"
  | "uint16x4"
  | "sint16x2"
  | "sint16x4"
  | "unorm16x2"
  | "unorm16x4"
  | "snorm16x2"
  | "snorm16x4"
  | "float16x2"
  | "float16x4"
  | "float32"
  | "float32x2"
  | "float32x3"
  | "float32x4"
  | "uint32"
  | "uint32x2"
  | "uint32x3"
  | "uint32x4"
  | "sint32"
  | "sint32x2"
  | "sint32x3"
  | "sint32x4";

/** @category WebGPU */
declare type GPUVertexStepMode = "vertex" | "instance";

/** @category WebGPU */
declare interface GPUVertexState extends GPUProgrammableStage {
  buffers?: (GPUVertexBufferLayout | null)[];
}

/** @category WebGPU */
declare interface GPUVertexBufferLayout {
  arrayStride: number;
  stepMode?: GPUVertexStepMode;
  attributes: GPUVertexAttribute[];
}

/** @category WebGPU */
declare interface GPUVertexAttribute {
  format: GPUVertexFormat;
  offset: number;

  shaderLocation: number;
}

/** @category WebGPU */
declare class GPUCommandBuffer implements GPUObjectBase {
  label: string;
}

/** @category WebGPU */
declare interface GPUCommandBufferDescriptor extends GPUObjectDescriptorBase {}

/** @category WebGPU */
declare class GPUCommandEncoder implements GPUObjectBase {
  label: string;

  beginRenderPass(descriptor: GPURenderPassDescriptor): GPURenderPassEncoder;
  beginComputePass(
    descriptor?: GPUComputePassDescriptor,
  ): GPUComputePassEncoder;

  copyBufferToBuffer(
    source: GPUBuffer,
    sourceOffset: number,
    destination: GPUBuffer,
    destinationOffset: number,
    size: number,
  ): undefined;

  copyBufferToTexture(
    source: GPUImageCopyBuffer,
    destination: GPUImageCopyTexture,
    copySize: GPUExtent3D,
  ): undefined;

  copyTextureToBuffer(
    source: GPUImageCopyTexture,
    destination: GPUImageCopyBuffer,
    copySize: GPUExtent3D,
  ): undefined;

  copyTextureToTexture(
    source: GPUImageCopyTexture,
    destination: GPUImageCopyTexture,
    copySize: GPUExtent3D,
  ): undefined;

  clearBuffer(
    destination: GPUBuffer,
    destinationOffset?: number,
    size?: number,
  ): undefined;

  pushDebugGroup(groupLabel: string): undefined;
  popDebugGroup(): undefined;
  insertDebugMarker(markerLabel: string): undefined;

  writeTimestamp(querySet: GPUQuerySet, queryIndex: number): undefined;

  resolveQuerySet(
    querySet: GPUQuerySet,
    firstQuery: number,
    queryCount: number,
    destination: GPUBuffer,
    destinationOffset: number,
  ): undefined;

  finish(descriptor?: GPUCommandBufferDescriptor): GPUCommandBuffer;
}

/** @category WebGPU */
declare interface GPUCommandEncoderDescriptor extends GPUObjectDescriptorBase {}

/** @category WebGPU */
declare interface GPUImageDataLayout {
  offset?: number;
  bytesPerRow?: number;
  rowsPerImage?: number;
}

/** @category WebGPU */
declare interface GPUImageCopyBuffer extends GPUImageDataLayout {
  buffer: GPUBuffer;
}

/** @category WebGPU */
declare interface GPUImageCopyTexture {
  texture: GPUTexture;
  mipLevel?: number;
  origin?: GPUOrigin3D;
  aspect?: GPUTextureAspect;
}

/** @category WebGPU */
interface GPUProgrammablePassEncoder {
  setBindGroup(
    index: number,
    bindGroup: GPUBindGroup,
    dynamicOffsets?: number[],
  ): undefined;

  setBindGroup(
    index: number,
    bindGroup: GPUBindGroup,
    dynamicOffsetsData: Uint32Array,
    dynamicOffsetsDataStart: number,
    dynamicOffsetsDataLength: number,
  ): undefined;

  pushDebugGroup(groupLabel: string): undefined;
  popDebugGroup(): undefined;
  insertDebugMarker(markerLabel: string): undefined;
}

/** @category WebGPU */
declare class GPUComputePassEncoder
  implements GPUObjectBase, GPUProgrammablePassEncoder {
  label: string;
  setBindGroup(
    index: number,
    bindGroup: GPUBindGroup,
    dynamicOffsets?: number[],
  ): undefined;
  setBindGroup(
    index: number,
    bindGroup: GPUBindGroup,
    dynamicOffsetsData: Uint32Array,
    dynamicOffsetsDataStart: number,
    dynamicOffsetsDataLength: number,
  ): undefined;
  pushDebugGroup(groupLabel: string): undefined;
  popDebugGroup(): undefined;
  insertDebugMarker(markerLabel: string): undefined;
  setPipeline(pipeline: GPUComputePipeline): undefined;
  dispatchWorkgroups(x: number, y?: number, z?: number): undefined;
  dispatchWorkgroupsIndirect(
    indirectBuffer: GPUBuffer,
    indirectOffset: number,
  ): undefined;

  beginPipelineStatisticsQuery(
    querySet: GPUQuerySet,
    queryIndex: number,
  ): undefined;
  endPipelineStatisticsQuery(): undefined;

  writeTimestamp(querySet: GPUQuerySet, queryIndex: number): undefined;

  end(): undefined;
}

/** @category WebGPU */
declare interface GPUComputePassDescriptor extends GPUObjectDescriptorBase {}

/** @category WebGPU */
interface GPURenderEncoderBase {
  setPipeline(pipeline: GPURenderPipeline): undefined;

  setIndexBuffer(
    buffer: GPUBuffer,
    indexFormat: GPUIndexFormat,
    offset?: number,
    size?: number,
  ): undefined;
  setVertexBuffer(
    slot: number,
    buffer: GPUBuffer,
    offset?: number,
    size?: number,
  ): undefined;

  draw(
    vertexCount: number,
    instanceCount?: number,
    firstVertex?: number,
    firstInstance?: number,
  ): undefined;
  drawIndexed(
    indexCount: number,
    instanceCount?: number,
    firstIndex?: number,
    baseVertex?: number,
    firstInstance?: number,
  ): undefined;

  drawIndirect(indirectBuffer: GPUBuffer, indirectOffset: number): undefined;
  drawIndexedIndirect(
    indirectBuffer: GPUBuffer,
    indirectOffset: number,
  ): undefined;
}

/** @category WebGPU */
declare class GPURenderPassEncoder
  implements GPUObjectBase, GPUProgrammablePassEncoder, GPURenderEncoderBase {
  label: string;
  setBindGroup(
    index: number,
    bindGroup: GPUBindGroup,
    dynamicOffsets?: number[],
  ): undefined;
  setBindGroup(
    index: number,
    bindGroup: GPUBindGroup,
    dynamicOffsetsData: Uint32Array,
    dynamicOffsetsDataStart: number,
    dynamicOffsetsDataLength: number,
  ): undefined;
  pushDebugGroup(groupLabel: string): undefined;
  popDebugGroup(): undefined;
  insertDebugMarker(markerLabel: string): undefined;
  setPipeline(pipeline: GPURenderPipeline): undefined;
  setIndexBuffer(
    buffer: GPUBuffer,
    indexFormat: GPUIndexFormat,
    offset?: number,
    size?: number,
  ): undefined;
  setVertexBuffer(
    slot: number,
    buffer: GPUBuffer,
    offset?: number,
    size?: number,
  ): undefined;
  draw(
    vertexCount: number,
    instanceCount?: number,
    firstVertex?: number,
    firstInstance?: number,
  ): undefined;
  drawIndexed(
    indexCount: number,
    instanceCount?: number,
    firstIndex?: number,
    baseVertex?: number,
    firstInstance?: number,
  ): undefined;
  drawIndirect(indirectBuffer: GPUBuffer, indirectOffset: number): undefined;
  drawIndexedIndirect(
    indirectBuffer: GPUBuffer,
    indirectOffset: number,
  ): undefined;

  setViewport(
    x: number,
    y: number,
    width: number,
    height: number,
    minDepth: number,
    maxDepth: number,
  ): undefined;

  setScissorRect(
    x: number,
    y: number,
    width: number,
    height: number,
  ): undefined;

  setBlendConstant(color: GPUColor): undefined;
  setStencilReference(reference: number): undefined;

  beginOcclusionQuery(queryIndex: number): undefined;
  endOcclusionQuery(): undefined;

  beginPipelineStatisticsQuery(
    querySet: GPUQuerySet,
    queryIndex: number,
  ): undefined;
  endPipelineStatisticsQuery(): undefined;

  writeTimestamp(querySet: GPUQuerySet, queryIndex: number): undefined;

  executeBundles(bundles: GPURenderBundle[]): undefined;
  end(): undefined;
}

/** @category WebGPU */
declare interface GPURenderPassDescriptor extends GPUObjectDescriptorBase {
  colorAttachments: (GPURenderPassColorAttachment | null)[];
  depthStencilAttachment?: GPURenderPassDepthStencilAttachment;
  occlusionQuerySet?: GPUQuerySet;
}

/** @category WebGPU */
declare interface GPURenderPassColorAttachment {
  view: GPUTextureView;
  resolveTarget?: GPUTextureView;

  clearValue?: GPUColor;
  loadOp: GPULoadOp;
  storeOp: GPUStoreOp;
}

/** @category WebGPU */
declare interface GPURenderPassDepthStencilAttachment {
  view: GPUTextureView;

  depthClearValue?: number;
  depthLoadOp?: GPULoadOp;
  depthStoreOp?: GPUStoreOp;
  depthReadOnly?: boolean;

  stencilClearValue?: number;
  stencilLoadOp?: GPULoadOp;
  stencilStoreOp?: GPUStoreOp;
  stencilReadOnly?: boolean;
}

/** @category WebGPU */
declare type GPULoadOp = "load" | "clear";

/** @category WebGPU */
declare type GPUStoreOp = "store" | "discard";

/** @category WebGPU */
declare class GPURenderBundle implements GPUObjectBase {
  label: string;
}

/** @category WebGPU */
declare interface GPURenderBundleDescriptor extends GPUObjectDescriptorBase {}

/** @category WebGPU */
declare class GPURenderBundleEncoder
  implements GPUObjectBase, GPUProgrammablePassEncoder, GPURenderEncoderBase {
  label: string;
  draw(
    vertexCount: number,
    instanceCount?: number,
    firstVertex?: number,
    firstInstance?: number,
  ): undefined;
  drawIndexed(
    indexCount: number,
    instanceCount?: number,
    firstIndex?: number,
    baseVertex?: number,
    firstInstance?: number,
  ): undefined;
  drawIndexedIndirect(
    indirectBuffer: GPUBuffer,
    indirectOffset: number,
  ): undefined;
  drawIndirect(indirectBuffer: GPUBuffer, indirectOffset: number): undefined;
  insertDebugMarker(markerLabel: string): undefined;
  popDebugGroup(): undefined;
  pushDebugGroup(groupLabel: string): undefined;
  setBindGroup(
    index: number,
    bindGroup: GPUBindGroup,
    dynamicOffsets?: number[],
  ): undefined;
  setBindGroup(
    index: number,
    bindGroup: GPUBindGroup,
    dynamicOffsetsData: Uint32Array,
    dynamicOffsetsDataStart: number,
    dynamicOffsetsDataLength: number,
  ): undefined;
  setIndexBuffer(
    buffer: GPUBuffer,
    indexFormat: GPUIndexFormat,
    offset?: number,
    size?: number,
  ): undefined;
  setPipeline(pipeline: GPURenderPipeline): undefined;
  setVertexBuffer(
    slot: number,
    buffer: GPUBuffer,
    offset?: number,
    size?: number,
  ): undefined;

  finish(descriptor?: GPURenderBundleDescriptor): GPURenderBundle;
}

/** @category WebGPU */
declare interface GPURenderPassLayout extends GPUObjectDescriptorBase {
  colorFormats: (GPUTextureFormat | null)[];
  depthStencilFormat?: GPUTextureFormat;
  sampleCount?: number;
}

/** @category WebGPU */
declare interface GPURenderBundleEncoderDescriptor extends GPURenderPassLayout {
  depthReadOnly?: boolean;
  stencilReadOnly?: boolean;
}

/** @category WebGPU */
declare class GPUQueue implements GPUObjectBase {
  label: string;

  submit(commandBuffers: GPUCommandBuffer[]): undefined;

  onSubmittedWorkDone(): Promise<undefined>;

  writeBuffer(
    buffer: GPUBuffer,
    bufferOffset: number,
    data: BufferSource,
    dataOffset?: number,
    size?: number,
  ): undefined;

  writeTexture(
    destination: GPUImageCopyTexture,
    data: BufferSource,
    dataLayout: GPUImageDataLayout,
    size: GPUExtent3D,
  ): undefined;
}

/** @category WebGPU */
declare class GPUQuerySet implements GPUObjectBase {
  label: string;

  destroy(): undefined;
}

/** @category WebGPU */
declare interface GPUQuerySetDescriptor extends GPUObjectDescriptorBase {
  type: GPUQueryType;
  count: number;
  pipelineStatistics?: GPUPipelineStatisticName[];
}

/** @category WebGPU */
declare type GPUQueryType = "occlusion" | "pipeline-statistics" | "timestamp";

/** @category WebGPU */
declare type GPUPipelineStatisticName =
  | "vertex-shader-invocations"
  | "clipper-invocations"
  | "clipper-primitives-out"
  | "fragment-shader-invocations"
  | "compute-shader-invocations";

/** @category WebGPU */
declare type GPUDeviceLostReason = "destroyed";

/** @category WebGPU */
declare interface GPUDeviceLostInfo {
  readonly reason: GPUDeviceLostReason | undefined;
  readonly message: string;
}

/** @category WebGPU */
declare class GPUError {
  readonly message: string;
}

/** @category WebGPU */
declare type GPUErrorFilter = "out-of-memory" | "validation";

/** @category WebGPU */
declare class GPUOutOfMemoryError extends GPUError {
  constructor(message: string);
}

/** @category WebGPU */
declare class GPUValidationError extends GPUError {
  constructor(message: string);
}

/** @category WebGPU */
declare class GPUUncapturedErrorEvent extends Event {
  constructor(
    type: string,
    gpuUncapturedErrorEventInitDict: GPUUncapturedErrorEventInit,
  );
  readonly error: GPUError;
}

/** @category WebGPU */
declare interface GPUUncapturedErrorEventInit extends EventInit {
  error?: GPUError;
}

/** @category WebGPU */
declare interface GPUColorDict {
  r: number;
  g: number;
  b: number;
  a: number;
}

/** @category WebGPU */
declare type GPUColor = number[] | GPUColorDict;

/** @category WebGPU */
declare interface GPUOrigin3DDict {
  x?: number;
  y?: number;
  z?: number;
}

/** @category WebGPU */
declare type GPUOrigin3D = number[] | GPUOrigin3DDict;

/** @category WebGPU */
declare interface GPUExtent3DDict {
  width: number;
  height?: number;
  depthOrArrayLayers?: number;
}

/** @category WebGPU */
declare type GPUExtent3D = number[] | GPUExtent3DDict;

// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.

// deno-lint-ignore-file no-explicit-any

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

/** @category Web Sockets */
interface CloseEventInit extends EventInit {
  code?: number;
  reason?: string;
  wasClean?: boolean;
}

/** @category Web Sockets */
declare class CloseEvent extends Event {
  constructor(type: string, eventInitDict?: CloseEventInit);
  /**
   * Returns the WebSocket connection close code provided by the server.
   */
  readonly code: number;
  /**
   * Returns the WebSocket connection close reason provided by the server.
   */
  readonly reason: string;
  /**
   * Returns true if the connection closed cleanly; false otherwise.
   */
  readonly wasClean: boolean;
}

/** @category Web Sockets */
interface WebSocketEventMap {
  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.
 *
 * If you are looking to create a WebSocket server, please take a look at
 * `Deno.upgradeWebSocket()`.
 *
 * @tags allow-net
 * @category Web Sockets
 */
declare class WebSocket extends EventTarget {
  constructor(url: string | URL, 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:
   *
   * Can be set, to change how binary data is returned. The default is "blob".
   */
  binaryType: BinaryType;
  /**
   * Returns the number of bytes of application data (UTF-8 text and binary data) that have been queued using send() but not yet been transmitted to the network.
   *
   * If the WebSocket connection is closed, this attribute's value will only increase with each call to the send() method. (The number does not reset to zero once the connection closes.)
   */
  readonly bufferedAmount: number;
  /**
   * Returns the extensions selected by the server, if any.
   */
  readonly extensions: string;
  onclose: ((this: WebSocket, ev: CloseEvent) => any) | null;
  onerror: ((this: WebSocket, ev: Event | ErrorEvent) => any) | null;
  onmessage: ((this: WebSocket, ev: MessageEvent) => any) | null;
  onopen: ((this: WebSocket, ev: Event) => any) | null;
  /**
   * Returns the subprotocol selected by the server, if any. It can be used in conjunction with the array form of the constructor's second argument to perform subprotocol negotiation.
   */
  readonly protocol: string;
  /**
   * Returns the state of the WebSocket object's connection. It can have the values described below.
   */
  readonly readyState: number;
  /**
   * Returns the URL that was used to establish the WebSocket connection.
   */
  readonly url: string;
  /**
   * Closes the WebSocket connection, optionally using code as the the WebSocket connection close code and reason as the the WebSocket connection close reason.
   */
  close(code?: number, reason?: string): void;
  /**
   * Transmits data using the WebSocket connection. data can be a string, a Blob, an ArrayBuffer, or an ArrayBufferView.
   */
  send(data: string | ArrayBufferLike | Blob | ArrayBufferView): void;
  readonly CLOSED: number;
  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;
}

/** @category Web Sockets */
type BinaryType = "arraybuffer" | "blob";

// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.

// deno-lint-ignore-file no-explicit-any no-var

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

/** This Web Storage API interface provides access to a particular domain's
 * session or local storage. It allows, for example, the addition, modification,
 * or deletion of stored data items.
 *
 * @category Web Storage API
 */
interface Storage {
  /**
   * Returns the number of key/value pairs currently present in the list associated with the object.
   */
  readonly length: number;
  /**
   * Empties the list associated with the object of all key/value pairs, if there are any.
   */
  clear(): void;
  /**
   * Returns the current value associated with the given key, or null if the given key does not exist in the list associated with the object.
   */
  getItem(key: string): string | null;
  /**
   * Returns the name of the nth key in the list, or null if n is greater than or equal to the number of key/value pairs in the object.
   */
  key(index: number): string | null;
  /**
   * Removes the key/value pair with the given key from the list associated with the object, if a key/value pair with the given key exists.
   */
  removeItem(key: string): void;
  /**
   * Sets the value of the pair identified by key to value, creating a new key/value pair if none existed for key previously.
   *
   * Throws a "QuotaExceededError" DOMException exception if the new value couldn't be set. (Setting could fail if, e.g., the user has disabled storage for the site, or if the quota has been exceeded.)
   */
  setItem(key: string, value: string): void;
  [name: string]: any;
}

/** @category Web Storage API */
declare var Storage: {
  prototype: Storage;
  new (): Storage;
};

// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.

// deno-lint-ignore-file no-var

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

/** @category Web Crypto API */
declare var crypto: Crypto;

/** @category Web Crypto API */
interface Algorithm {
  name: string;
}

/** @category Web Crypto API */
interface KeyAlgorithm {
  name: string;
}

/** @category Web Crypto API */
type AlgorithmIdentifier = string | Algorithm;
/** @category Web Crypto API */
type HashAlgorithmIdentifier = AlgorithmIdentifier;
/** @category Web Crypto API */
type KeyType = "private" | "public" | "secret";
/** @category Web Crypto API */
type KeyUsage =
  | "decrypt"
  | "deriveBits"
  | "deriveKey"
  | "encrypt"
  | "sign"
  | "unwrapKey"
  | "verify"
  | "wrapKey";
/** @category Web Crypto API */
type KeyFormat = "jwk" | "pkcs8" | "raw" | "spki";
/** @category Web Crypto API */
type NamedCurve = string;

/** @category Web Crypto API */
interface RsaOtherPrimesInfo {
  d?: string;
  r?: string;
  t?: string;
}

/** @category Web Crypto API */
interface JsonWebKey {
  alg?: string;
  crv?: string;
  d?: string;
  dp?: string;
  dq?: string;
  e?: string;
  ext?: boolean;
  k?: string;
  // deno-lint-ignore camelcase
  key_ops?: string[];
  kty?: string;
  n?: string;
  oth?: RsaOtherPrimesInfo[];
  p?: string;
  q?: string;
  qi?: string;
  use?: string;
  x?: string;
  y?: string;
}

/** @category Web Crypto API */
interface AesCbcParams extends Algorithm {
  iv: BufferSource;
}

/** @category Web Crypto API */
interface AesGcmParams extends Algorithm {
  iv: BufferSource;
  additionalData?: BufferSource;
  tagLength?: number;
}

/** @category Web Crypto API */
interface AesCtrParams extends Algorithm {
  counter: BufferSource;
  length: number;
}

/** @category Web Crypto API */
interface HmacKeyGenParams extends Algorithm {
  hash: HashAlgorithmIdentifier;
  length?: number;
}

/** @category Web Crypto API */
interface EcKeyGenParams extends Algorithm {
  namedCurve: NamedCurve;
}

/** @category Web Crypto API */
interface EcKeyImportParams extends Algorithm {
  namedCurve: NamedCurve;
}

/** @category Web Crypto API */
interface EcdsaParams extends Algorithm {
  hash: HashAlgorithmIdentifier;
}

/** @category Web Crypto API */
interface RsaHashedImportParams extends Algorithm {
  hash: HashAlgorithmIdentifier;
}

/** @category Web Crypto API */
interface RsaHashedKeyGenParams extends RsaKeyGenParams {
  hash: HashAlgorithmIdentifier;
}

/** @category Web Crypto API */
interface RsaKeyGenParams extends Algorithm {
  modulusLength: number;
  publicExponent: Uint8Array;
}

/** @category Web Crypto API */
interface RsaPssParams extends Algorithm {
  saltLength: number;
}

/** @category Web Crypto API */
interface RsaOaepParams extends Algorithm {
  label?: Uint8Array;
}

/** @category Web Crypto API */
interface HmacImportParams extends Algorithm {
  hash: HashAlgorithmIdentifier;
  length?: number;
}

/** @category Web Crypto API */
interface EcKeyAlgorithm extends KeyAlgorithm {
  namedCurve: NamedCurve;
}

/** @category Web Crypto API */
interface HmacKeyAlgorithm extends KeyAlgorithm {
  hash: KeyAlgorithm;
  length: number;
}

/** @category Web Crypto API */
interface RsaHashedKeyAlgorithm extends RsaKeyAlgorithm {
  hash: KeyAlgorithm;
}

/** @category Web Crypto API */
interface RsaKeyAlgorithm extends KeyAlgorithm {
  modulusLength: number;
  publicExponent: Uint8Array;
}

/** @category Web Crypto API */
interface HkdfParams extends Algorithm {
  hash: HashAlgorithmIdentifier;
  info: BufferSource;
  salt: BufferSource;
}

/** @category Web Crypto API */
interface Pbkdf2Params extends Algorithm {
  hash: HashAlgorithmIdentifier;
  iterations: number;
  salt: BufferSource;
}

/** @category Web Crypto API */
interface AesDerivedKeyParams extends Algorithm {
  length: number;
}

/** @category Web Crypto API */
interface EcdhKeyDeriveParams extends Algorithm {
  public: CryptoKey;
}

/** @category Web Crypto API */
interface AesKeyGenParams extends Algorithm {
  length: number;
}

/** @category Web Crypto API */
interface AesKeyAlgorithm extends KeyAlgorithm {
  length: number;
}

/** The CryptoKey dictionary of the Web Crypto API represents a cryptographic
 * key.
 *
 * @category Web Crypto API
 */
interface CryptoKey {
  readonly algorithm: KeyAlgorithm;
  readonly extractable: boolean;
  readonly type: KeyType;
  readonly usages: KeyUsage[];
}

/** @category Web Crypto API */
declare var CryptoKey: {
  prototype: CryptoKey;
  new (): CryptoKey;
};

/** The CryptoKeyPair dictionary of the Web Crypto API represents a key pair for
 * an asymmetric cryptography algorithm, also known as a public-key algorithm.
 *
 * @category Web Crypto API
 */
interface CryptoKeyPair {
  privateKey: CryptoKey;
  publicKey: CryptoKey;
}

/** @category Web Crypto API */
declare var CryptoKeyPair: {
  prototype: CryptoKeyPair;
  new (): CryptoKeyPair;
};

/** This Web Crypto API interface provides a number of low-level cryptographic
 * functions. It is accessed via the Crypto.subtle properties available in a
 * window context (via Window.crypto).
 *
 * @category Web Crypto API
 */
interface SubtleCrypto {
  generateKey(
    algorithm: RsaHashedKeyGenParams | EcKeyGenParams,
    extractable: boolean,
    keyUsages: KeyUsage[],
  ): Promise<CryptoKeyPair>;
  generateKey(
    algorithm: AesKeyGenParams | HmacKeyGenParams,
    extractable: boolean,
    keyUsages: KeyUsage[],
  ): Promise<CryptoKey>;
  generateKey(
    algorithm: AlgorithmIdentifier,
    extractable: boolean,
    keyUsages: KeyUsage[],
  ): Promise<CryptoKeyPair | CryptoKey>;
  importKey(
    format: "jwk",
    keyData: JsonWebKey,
    algorithm:
      | AlgorithmIdentifier
      | HmacImportParams
      | RsaHashedImportParams
      | EcKeyImportParams,
    extractable: boolean,
    keyUsages: KeyUsage[],
  ): Promise<CryptoKey>;
  importKey(
    format: Exclude<KeyFormat, "jwk">,
    keyData: BufferSource,
    algorithm:
      | AlgorithmIdentifier
      | HmacImportParams
      | RsaHashedImportParams
      | EcKeyImportParams,
    extractable: boolean,
    keyUsages: KeyUsage[],
  ): Promise<CryptoKey>;
  exportKey(format: "jwk", key: CryptoKey): Promise<JsonWebKey>;
  exportKey(
    format: Exclude<KeyFormat, "jwk">,
    key: CryptoKey,
  ): Promise<ArrayBuffer>;
  sign(
    algorithm: AlgorithmIdentifier | RsaPssParams | EcdsaParams,
    key: CryptoKey,
    data: BufferSource,
  ): Promise<ArrayBuffer>;
  verify(
    algorithm: AlgorithmIdentifier | RsaPssParams | EcdsaParams,
    key: CryptoKey,
    signature: BufferSource,
    data: BufferSource,
  ): Promise<boolean>;
  digest(
    algorithm: AlgorithmIdentifier,
    data: BufferSource,
  ): Promise<ArrayBuffer>;
  encrypt(
    algorithm:
      | AlgorithmIdentifier
      | RsaOaepParams
      | AesCbcParams
      | AesGcmParams
      | AesCtrParams,
    key: CryptoKey,
    data: BufferSource,
  ): Promise<ArrayBuffer>;
  decrypt(
    algorithm:
      | AlgorithmIdentifier
      | RsaOaepParams
      | AesCbcParams
      | AesGcmParams
      | AesCtrParams,
    key: CryptoKey,
    data: BufferSource,
  ): Promise<ArrayBuffer>;
  deriveBits(
    algorithm:
      | AlgorithmIdentifier
      | HkdfParams
      | Pbkdf2Params
      | EcdhKeyDeriveParams,
    baseKey: CryptoKey,
    length: number,
  ): Promise<ArrayBuffer>;
  deriveKey(
    algorithm:
      | AlgorithmIdentifier
      | HkdfParams
      | Pbkdf2Params
      | EcdhKeyDeriveParams,
    baseKey: CryptoKey,
    derivedKeyType:
      | AlgorithmIdentifier
      | AesDerivedKeyParams
      | HmacImportParams
      | HkdfParams
      | Pbkdf2Params,
    extractable: boolean,
    keyUsages: KeyUsage[],
  ): Promise<CryptoKey>;
  wrapKey(
    format: KeyFormat,
    key: CryptoKey,
    wrappingKey: CryptoKey,
    wrapAlgorithm:
      | AlgorithmIdentifier
      | RsaOaepParams
      | AesCbcParams
      | AesCtrParams,
  ): Promise<ArrayBuffer>;
  unwrapKey(
    format: KeyFormat,
    wrappedKey: BufferSource,
    unwrappingKey: CryptoKey,
    unwrapAlgorithm:
      | AlgorithmIdentifier
      | RsaOaepParams
      | AesCbcParams
      | AesCtrParams,
    unwrappedKeyAlgorithm:
      | AlgorithmIdentifier
      | HmacImportParams
      | RsaHashedImportParams
      | EcKeyImportParams,
    extractable: boolean,
    keyUsages: KeyUsage[],
  ): Promise<CryptoKey>;
}

/** @category Web Crypto API */
declare interface Crypto {
  readonly subtle: SubtleCrypto;
  getRandomValues<
    T extends
      | Int8Array
      | Int16Array
      | Int32Array
      | Uint8Array
      | Uint16Array
      | Uint32Array
      | Uint8ClampedArray
      | BigInt64Array
      | BigUint64Array,
  >(
    array: T,
  ): T;
  randomUUID(): string;
}

/** @category Web Crypto API */
declare var SubtleCrypto: {
  prototype: SubtleCrypto;
  new (): SubtleCrypto;
};

// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.

// deno-lint-ignore-file no-explicit-any no-var

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

/** @category Broadcast Channel */
interface BroadcastChannelEventMap {
  "message": MessageEvent;
  "messageerror": MessageEvent;
}

/** @category Broadcast Channel */
interface BroadcastChannel extends EventTarget {
  /**
   * Returns the channel name (as passed to the constructor).
   */
  readonly name: string;
  onmessage: ((this: BroadcastChannel, ev: MessageEvent) => any) | null;
  onmessageerror: ((this: BroadcastChannel, ev: MessageEvent) => any) | null;
  /**
   * Closes the BroadcastChannel object, opening it up to garbage collection.
   */
  close(): void;
  /**
   * Sends the given message to other BroadcastChannel objects set up for
   * this channel. Messages can be structured objects, e.g. nested objects
   * and arrays.
   */
  postMessage(message: any): void;
  addEventListener<K extends keyof BroadcastChannelEventMap>(
    type: K,
    listener: (this: BroadcastChannel, ev: BroadcastChannelEventMap[K]) => any,
    options?: boolean | AddEventListenerOptions,
  ): void;
  addEventListener(
    type: string,
    listener: EventListenerOrEventListenerObject,
    options?: boolean | AddEventListenerOptions,
  ): void;
  removeEventListener<K extends keyof BroadcastChannelEventMap>(
    type: K,
    listener: (this: BroadcastChannel, ev: BroadcastChannelEventMap[K]) => any,
    options?: boolean | EventListenerOptions,
  ): void;
  removeEventListener(
    type: string,
    listener: EventListenerOrEventListenerObject,
    options?: boolean | EventListenerOptions,
  ): void;
}

/** @category Broadcast Channel */
declare var BroadcastChannel: {
  prototype: BroadcastChannel;
  new (name: string): BroadcastChannel;
};

// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.

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

declare namespace Deno {
  /** @category Network */
  export interface NetAddr {
    transport: "tcp" | "udp";
    hostname: string;
    port: number;
  }

  /** @category Network */
  export interface UnixAddr {
    transport: "unix" | "unixpacket";
    path: string;
  }

  /** @category Network */
  export type Addr = NetAddr | UnixAddr;

  /** A generic network listener for stream-oriented protocols.
   *
   * @category Network
   */
  export interface Listener extends AsyncIterable<Conn> {
    /** Waits for and resolves to the next connection to the `Listener`. */
    accept(): Promise<Conn>;
    /** Close closes the listener. Any pending accept promises will be rejected
     * with errors. */
    close(): void;
    /** Return the address of the `Listener`. */
    readonly addr: Addr;

    /** Return the rid of the `Listener`. */
    readonly rid: number;

    [Symbol.asyncIterator](): AsyncIterableIterator<Conn>;
  }

  /** Specialized listener that accepts TLS connections.
   *
   * @category Network
   */
  export interface TlsListener extends Listener, AsyncIterable<TlsConn> {
    /** Waits for a TLS client to connect and accepts the connection. */
    accept(): Promise<TlsConn>;
    [Symbol.asyncIterator](): AsyncIterableIterator<TlsConn>;
  }

  /** @category Network */
  export interface Conn extends Reader, Writer, Closer {
    /** The local address of the connection. */
    readonly localAddr: Addr;
    /** The remote address of the connection. */
    readonly remoteAddr: Addr;
    /** The resource ID of the connection. */
    readonly rid: number;
    /** Shuts down (`shutdown(2)`) the write side of the connection. Most
     * callers should just use `close()`. */
    closeWrite(): Promise<void>;

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

  /** @category Network */
  // deno-lint-ignore no-empty-interface
  export interface TlsHandshakeInfo {}

  /** @category Network */
  export interface TlsConn extends Conn {
    /** Runs the client or server handshake protocol to completion if that has
     * not happened yet. Calling this method is optional; the TLS handshake
     * will be completed automatically as soon as data is sent or received. */
    handshake(): Promise<TlsHandshakeInfo>;
  }

  /** @category Network */
  export interface ListenOptions {
    /** The port to listen on. */
    port: number;
    /** A literal IP address or host name that can be resolved to an IP address.
     * If not specified, defaults to `0.0.0.0`.
     *
     * __Note about `0.0.0.0`__ While listening `0.0.0.0` works on all platforms,
     * the browsers on Windows don't work with the address `0.0.0.0`.
     * You should show the message like `server running on localhost:8080` instead of
     * `server running on 0.0.0.0:8080` if your program supports Windows. */
    hostname?: string;
  }

  /** Listen announces on the local transport address.
   *
   * ```ts
   * const listener1 = Deno.listen({ port: 80 })
   * const listener2 = Deno.listen({ hostname: "192.0.2.1", port: 80 })
   * const listener3 = Deno.listen({ hostname: "[2001:db8::1]", port: 80 });
   * const listener4 = Deno.listen({ hostname: "golang.org", port: 80, transport: "tcp" });
   * ```
   *
   * Requires `allow-net` permission.
   *
   * @tags allow-net
   * @category Network
   */
  export function listen(
    options: ListenOptions & { transport?: "tcp" },
  ): Listener;

  /** @category Network */
  export interface ListenTlsOptions extends ListenOptions {
    /** Server private key in PEM format */
    key?: string;
    /** Cert chain in PEM format */
    cert?: string;
    /** Path to a file containing a PEM formatted CA certificate. Requires
     * `--allow-read`.
     *
     * @tags allow-read
     * @deprecated This option is deprecated and will be removed in Deno 2.0.
     */
    certFile?: string;
    /** Server private key file. Requires `--allow-read`.
     *
     * @tags allow-read
     * @deprecated This option is deprecated and will be removed in Deno 2.0.
     */
    keyFile?: string;

    transport?: "tcp";
  }

  /** Listen announces on the local transport address over TLS (transport layer
   * security).
   *
   * ```ts
   * const lstnr = Deno.listenTls({ port: 443, certFile: "./server.crt", keyFile: "./server.key" });
   * ```
   *
   * Requires `allow-net` permission.
   *
   * @tags allow-net
   * @category Network
   */
  export function listenTls(options: ListenTlsOptions): TlsListener;

  /** @category Network */
  export interface ConnectOptions {
    /** The port to connect to. */
    port: number;
    /** A literal IP address or host name that can be resolved to an IP address.
     * If not specified, defaults to `127.0.0.1`. */
    hostname?: string;
    transport?: "tcp";
  }

  /**
   * Connects to the hostname (default is "127.0.0.1") and port on the named
   * transport (default is "tcp"), and resolves to the connection (`Conn`).
   *
   * ```ts
   * const conn1 = await Deno.connect({ port: 80 });
   * const conn2 = await Deno.connect({ hostname: "192.0.2.1", port: 80 });
   * const conn3 = await Deno.connect({ hostname: "[2001:db8::1]", port: 80 });
   * const conn4 = await Deno.connect({ hostname: "golang.org", port: 80, transport: "tcp" });
   * ```
   *
   * Requires `allow-net` permission for "tcp".
   *
   * @tags allow-net
   * @category Network
   */
  export function connect(options: ConnectOptions): Promise<TcpConn>;

  /** @category Network */
  export interface TcpConn extends Conn {
    /**
     * **UNSTABLE**: new API, see https://github.com/denoland/deno/issues/13617.
     *
     * Enable/disable the use of Nagle's algorithm. Defaults to true.
     */
    setNoDelay(nodelay?: boolean): void;
    /**
     * **UNSTABLE**: new API, see https://github.com/denoland/deno/issues/13617.
     *
     * Enable/disable keep-alive functionality.
     */
    setKeepAlive(keepalive?: boolean): void;
  }

  /** @category Network */
  // deno-lint-ignore no-empty-interface
  export interface UnixConn extends Conn {}

  /** @category Network */
  export interface ConnectTlsOptions {
    /** The port to connect to. */
    port: number;
    /** A literal IP address or host name that can be resolved to an IP address.
     * If not specified, defaults to `127.0.0.1`. */
    hostname?: string;
    /**
     * Server certificate file.
     *
     * @deprecated This option is deprecated and will be removed in a future
     * release.
     */
    certFile?: string;
    /** A list of root certificates that will be used in addition to the
     * default root certificates to verify the peer's certificate.
     *
     * Must be in PEM format. */
    caCerts?: string[];
  }

  /** Establishes a secure connection over TLS (transport layer security) using
   * an optional cert file, hostname (default is "127.0.0.1") and port.  The
   * cert file is optional and if not included Mozilla's root certificates will
   * be used (see also https://github.com/ctz/webpki-roots for specifics)
   *
   * ```ts
   * const caCert = await Deno.readTextFile("./certs/my_custom_root_CA.pem");
   * const conn1 = await Deno.connectTls({ port: 80 });
   * const conn2 = await Deno.connectTls({ caCerts: [caCert], hostname: "192.0.2.1", port: 80 });
   * const conn3 = await Deno.connectTls({ hostname: "[2001:db8::1]", port: 80 });
   * const conn4 = await Deno.connectTls({ caCerts: [caCert], hostname: "golang.org", port: 80});
   * ```
   *
   * Requires `allow-net` permission.
   *
   * @tags allow-net
   * @category Network
   */
  export function connectTls(options: ConnectTlsOptions): Promise<TlsConn>;

  /** @category Network */
  export interface StartTlsOptions {
    /** A literal IP address or host name that can be resolved to an IP address.
     * If not specified, defaults to `127.0.0.1`. */
    hostname?: string;
    /** A list of root certificates that will be used in addition to the
     * default root certificates to verify the peer's certificate.
     *
     * Must be in PEM format. */
    caCerts?: string[];
  }

  /** Start TLS handshake from an existing connection using an optional list of
   * CA certificates, and hostname (default is "127.0.0.1"). Specifying CA certs
   * is optional. By default the configured root certificates are used. Using
   * this function requires that the other end of the connection is prepared for
   * a TLS handshake.
   *
   * ```ts
   * const conn = await Deno.connect({ port: 80, hostname: "127.0.0.1" });
   * const caCert = await Deno.readTextFile("./certs/my_custom_root_CA.pem");
   * const tlsConn = await Deno.startTls(conn, { caCerts: [caCert], hostname: "localhost" });
   * ```
   *
   * Requires `allow-net` permission.
   *
   * @tags allow-net
   * @category Network
   */
  export function startTls(
    conn: Conn,
    options?: StartTlsOptions,
  ): Promise<TlsConn>;

  /** Shutdown socket send operations.
   *
   * Matches behavior of POSIX shutdown(3).
   *
   * ```ts
   * const listener = Deno.listen({ port: 80 });
   * const conn = await listener.accept();
   * Deno.shutdown(conn.rid);
   * ```
   *
   * @category Network
   */
  export function shutdown(rid: number): Promise<void>;
}

// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.

// Documentation partially adapted from [MDN](https://developer.mozilla.org/),
// by Mozilla Contributors, which is licensed under CC-BY-SA 2.5.

/// <reference no-default-lib="true" />
/// <reference lib="esnext" />
/// <reference lib="deno.console" />
/// <reference lib="deno.url" />
/// <reference lib="deno.web" />
/// <reference lib="deno.fetch" />
/// <reference lib="deno.websocket" />
/// <reference lib="deno.crypto" />
/// <reference lib="deno.broadcast_channel" />

/** @category WebAssembly */
declare namespace WebAssembly {
  /**
   * The `WebAssembly.CompileError` object indicates an error during WebAssembly decoding or validation.
   *
   * [MDN](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WebAssembly/CompileError)
   *
   * @category WebAssembly
   */
  export class CompileError extends Error {
    /** Creates a new `WebAssembly.CompileError` object. */
    constructor(message?: string, options?: ErrorOptions);
  }

  /**
   * A `WebAssembly.Global` object represents a global variable instance, accessible from
   * both JavaScript and importable/exportable across one or more `WebAssembly.Module`
   * instances. This allows dynamic linking of multiple modules.
   *
   * [MDN](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WebAssembly/Global)
   *
   * @category WebAssembly
   */
  export class Global {
    /** Creates a new `Global` object. */
    constructor(descriptor: GlobalDescriptor, v?: any);

    /**
     * The value contained inside the global variable — this can be used to directly set
     * and get the global's value.
     */
    value: any;

    /** Old-style method that returns the value contained inside the global variable. */
    valueOf(): any;
  }

  /**
   * A `WebAssembly.Instance` object is a stateful, executable instance of a `WebAssembly.Module`.
   * Instance objects contain all the Exported WebAssembly functions that allow calling into
   * WebAssembly code from JavaScript.
   *
   * [MDN](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WebAssembly/Instance)
   *
   * @category WebAssembly
   */
  export class Instance {
    /** Creates a new Instance object. */
    constructor(module: Module, importObject?: Imports);

    /**
     * Returns an object containing as its members all the functions exported from the
     * WebAssembly module instance, to allow them to be accessed and used by JavaScript.
     * Read-only.
     */
    readonly exports: Exports;
  }

  /**
   * The `WebAssembly.LinkError` object indicates an error during module instantiation
   * (besides traps from the start function).
   *
   * [MDN](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WebAssembly/LinkError)
   *
   * @category WebAssembly
   */
  export class LinkError extends Error {
    /** Creates a new WebAssembly.LinkError object. */
    constructor(message?: string, options?: ErrorOptions);
  }

  /**
   * The `WebAssembly.Memory` object is a resizable `ArrayBuffer` or `SharedArrayBuffer` that
   * holds the raw bytes of memory accessed by a WebAssembly Instance.
   *
   * A memory created by JavaScript or in WebAssembly code will be accessible and mutable
   * from both JavaScript and WebAssembly.
   *
   * [MDN](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WebAssembly/Memory)
   *
   * @category WebAssembly
   */
  export class Memory {
    /** Creates a new `Memory` object. */
    constructor(descriptor: MemoryDescriptor);

    /** An accessor property that returns the buffer contained in the memory. */
    readonly buffer: ArrayBuffer | SharedArrayBuffer;

    /**
     * Increases the size of the memory instance by a specified number of WebAssembly
     * pages (each one is 64KB in size).
     */
    grow(delta: number): number;
  }

  /**
   * A `WebAssembly.Module` object contains stateless WebAssembly code that has already been compiled
   * by the browser — this can be efficiently shared with Workers, and instantiated multiple times.
   *
   * [MDN](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WebAssembly/Module)
   *
   * @category WebAssembly
   */
  export class Module {
    /** Creates a new `Module` object. */
    constructor(bytes: BufferSource);

    /**
     * Given a `Module` and string, returns a copy of the contents of all custom sections in the
     * module with the given string name.
     */
    static customSections(
      moduleObject: Module,
      sectionName: string,
    ): ArrayBuffer[];

    /** Given a `Module`, returns an array containing descriptions of all the declared exports. */
    static exports(moduleObject: Module): ModuleExportDescriptor[];

    /** Given a `Module`, returns an array containing descriptions of all the declared imports. */
    static imports(moduleObject: Module): ModuleImportDescriptor[];
  }

  /**
   * The `WebAssembly.RuntimeError` object is the error type that is thrown whenever WebAssembly
   * specifies a trap.
   *
   * [MDN](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WebAssembly/RuntimeError)
   *
   * @category WebAssembly
   */
  export class RuntimeError extends Error {
    /** Creates a new `WebAssembly.RuntimeError` object. */
    constructor(message?: string, options?: ErrorOptions);
  }

  /**
   * The `WebAssembly.Table()` object is a JavaScript wrapper object — an array-like structure
   * representing a WebAssembly Table, which stores function references. A table created by
   * JavaScript or in WebAssembly code will be accessible and mutable from both JavaScript
   * and WebAssembly.
   *
   * [MDN](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WebAssembly/Table)
   *
   * @category WebAssembly
   */
  export class Table {
    /** Creates a new `Table` object. */
    constructor(descriptor: TableDescriptor);

    /** Returns the length of the table, i.e. the number of elements. */
    readonly length: number;

    /** Accessor function — gets the element stored at a given index. */
    get(index: number): Function | null;

    /** Increases the size of the `Table` instance by a specified number of elements. */
    grow(delta: number): number;

    /** Sets an element stored at a given index to a given value. */
    set(index: number, value: Function | null): void;
  }

  /** The `GlobalDescriptor` describes the options you can pass to
   * `new WebAssembly.Global()`.
   *
   * @category WebAssembly
   */
  export interface GlobalDescriptor {
    mutable?: boolean;
    value: ValueType;
  }

  /** The `MemoryDescriptor` describes the options you can pass to
   * `new WebAssembly.Memory()`.
   *
   * @category WebAssembly
   */
  export interface MemoryDescriptor {
    initial: number;
    maximum?: number;
    shared?: boolean;
  }

  /** A `ModuleExportDescriptor` is the description of a declared export in a
   * `WebAssembly.Module`.
   *
   * @category WebAssembly
   */
  export interface ModuleExportDescriptor {
    kind: ImportExportKind;
    name: string;
  }

  /** A `ModuleImportDescriptor` is the description of a declared import in a
   * `WebAssembly.Module`.
   *
   * @category WebAssembly
   */
  export interface ModuleImportDescriptor {
    kind: ImportExportKind;
    module: string;
    name: string;
  }

  /** The `TableDescriptor` describes the options you can pass to
   * `new WebAssembly.Table()`.
   *
   * @category WebAssembly
   */
  export interface TableDescriptor {
    element: TableKind;
    initial: number;
    maximum?: number;
  }

  /** The value returned from `WebAssembly.instantiate`.
   *
   * @category WebAssembly
   */
  export interface WebAssemblyInstantiatedSource {
    /* A `WebAssembly.Instance` object that contains all the exported WebAssembly functions. */
    instance: Instance;

    /**
     * A `WebAssembly.Module` object representing the compiled WebAssembly module.
     * This `Module` can be instantiated again, or shared via postMessage().
     */
    module: Module;
  }

  /** @category WebAssembly */
  export type ImportExportKind = "function" | "global" | "memory" | "table";
  /** @category WebAssembly */
  export type TableKind = "anyfunc";
  /** @category WebAssembly */
  export type ValueType = "f32" | "f64" | "i32" | "i64";
  /** @category WebAssembly */
  export type ExportValue = Function | Global | Memory | Table;
  /** @category WebAssembly */
  export type Exports = Record<string, ExportValue>;
  /** @category WebAssembly */
  export type ImportValue = ExportValue | number;
  /** @category WebAssembly */
  export type ModuleImports = Record<string, ImportValue>;
  /** @category WebAssembly */
  export type Imports = Record<string, ModuleImports>;

  /**
   * The `WebAssembly.compile()` function compiles WebAssembly binary code into a
   * `WebAssembly.Module` object. This function is useful if it is necessary to compile
   * a module before it can be instantiated (otherwise, the `WebAssembly.instantiate()`
   * function should be used).
   *
   * [MDN](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WebAssembly/compile)
   *
   * @category WebAssembly
   */
  export function compile(bytes: BufferSource): Promise<Module>;

  /**
   * The `WebAssembly.compileStreaming()` function compiles a `WebAssembly.Module`
   * directly from a streamed underlying source. This function is useful if it is
   * necessary to a compile a module before it can be instantiated (otherwise, the
   * `WebAssembly.instantiateStreaming()` function should be used).
   *
   * [MDN](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WebAssembly/compileStreaming)
   *
   * @category WebAssembly
   */
  export function compileStreaming(
    source: Response | Promise<Response>,
  ): Promise<Module>;

  /**
   * The WebAssembly.instantiate() function allows you to compile and instantiate
   * WebAssembly code.
   *
   * This overload takes the WebAssembly binary code, in the form of a typed
   * array or ArrayBuffer, and performs both compilation and instantiation in one step.
   * The returned Promise resolves to both a compiled WebAssembly.Module and its first
   * WebAssembly.Instance.
   *
   * [MDN](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WebAssembly/instantiate)
   *
   * @category WebAssembly
   */
  export function instantiate(
    bytes: BufferSource,
    importObject?: Imports,
  ): Promise<WebAssemblyInstantiatedSource>;

  /**
   * The WebAssembly.instantiate() function allows you to compile and instantiate
   * WebAssembly code.
   *
   * This overload takes an already-compiled WebAssembly.Module and returns
   * a Promise that resolves to an Instance of that Module. This overload is useful
   * if the Module has already been compiled.
   *
   * [MDN](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WebAssembly/instantiate)
   *
   * @category WebAssembly
   */
  export function instantiate(
    moduleObject: Module,
    importObject?: Imports,
  ): Promise<Instance>;

  /**
   * The `WebAssembly.instantiateStreaming()` function compiles and instantiates a
   * WebAssembly module directly from a streamed underlying source. This is the most
   * efficient, optimized way to load wasm code.
   *
   * [MDN](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WebAssembly/instantiateStreaming)
   *
   * @category WebAssembly
   */
  export function instantiateStreaming(
    response: Response | PromiseLike<Response>,
    importObject?: Imports,
  ): Promise<WebAssemblyInstantiatedSource>;

  /**
   * The `WebAssembly.validate()` function validates a given typed array of
   * WebAssembly binary code, returning whether the bytes form a valid wasm
   * module (`true`) or not (`false`).
   *
   * [MDN](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WebAssembly/validate)
   *
   * @category WebAssembly
   */
  export function validate(bytes: BufferSource): boolean;
}

/** Sets a timer which executes a function once after the timer expires. Returns
 * an id which may be used to cancel the timeout.
 *
 * ```ts
 * setTimeout(() => { console.log('hello'); }, 500);
 * ```
 *
 * @category Timers
 */
declare function setTimeout(
  /** callback function to execute when timer expires */
  cb: (...args: any[]) => void,
  /** delay in ms */
  delay?: number,
  /** arguments passed to callback function */
  ...args: any[]
): number;

/** Repeatedly calls a function , with a fixed time delay between each call.
 *
 * ```ts
 * // Outputs 'hello' to the console every 500ms
 * setInterval(() => { console.log('hello'); }, 500);
 * ```
 *
 * @category Timers
 */
declare function setInterval(
  /** callback function to execute when timer expires */
  cb: (...args: any[]) => void,
  /** delay in ms */
  delay?: number,
  /** arguments passed to callback function */
  ...args: any[]
): number;

/** Cancels a timed, repeating action which was previously started by a call
 * to `setInterval()`
 *
 * ```ts
 * const id = setInterval(() => {console.log('hello');}, 500);
 * // ...
 * clearInterval(id);
 * ```
 *
 * @category Timers
 */
declare function clearInterval(id?: number): void;

/** Cancels a scheduled action initiated by `setTimeout()`
 *
 * ```ts
 * const id = setTimeout(() => {console.log('hello');}, 500);
 * // ...
 * clearTimeout(id);
 * ```
 *
 * @category Timers
 */
declare function clearTimeout(id?: number): void;

/** @category Scheduling */
interface VoidFunction {
  (): void;
}

/** A microtask is a short function which is executed after the function or
 * module which created it exits and only if the JavaScript execution stack is
 * empty, but before returning control to the event loop being used to drive the
 * script's execution environment. This event loop may be either the main event
 * loop or the event loop driving a web worker.
 *
 * ```ts
 * queueMicrotask(() => { console.log('This event loop stack is complete'); });
 * ```
 *
 * @category Scheduling
 */
declare function queueMicrotask(func: VoidFunction): void;

/** Dispatches an event in the global scope, synchronously invoking any
 * registered event listeners for this event in the appropriate order. Returns
 * false if event is cancelable and at least one of the event handlers which
 * handled this event called Event.preventDefault(). Otherwise it returns true.
 *
 * ```ts
 * dispatchEvent(new Event('unload'));
 * ```
 *
 * @category DOM Events
 */
declare function dispatchEvent(event: Event): boolean;

/** @category DOM APIs */
interface DOMStringList {
  /** Returns the number of strings in strings. */
  readonly length: number;
  /** Returns true if strings contains string, and false otherwise. */
  contains(string: string): boolean;
  /** Returns the string with index index from strings. */
  item(index: number): string | null;
  [index: number]: string;
}

/** @category Typed Arrays */
type BufferSource = ArrayBufferView | ArrayBuffer;

/** @category Console and Debugging */
declare var console: Console;

/** @category DOM Events */
interface ErrorEventInit extends EventInit {
  message?: string;
  filename?: string;
  lineno?: number;
  colno?: number;
  error?: any;
}

/** @category DOM Events */
declare class ErrorEvent extends Event {
  readonly message: string;
  readonly filename: string;
  readonly lineno: number;
  readonly colno: number;
  readonly error: any;
  constructor(type: string, eventInitDict?: ErrorEventInit);
}

/** @category Observability */
interface PromiseRejectionEventInit extends EventInit {
  promise: Promise<any>;
  reason?: any;
}

/** @category Observability */
declare class PromiseRejectionEvent extends Event {
  readonly promise: Promise<any>;
  readonly reason: any;
  constructor(type: string, eventInitDict?: PromiseRejectionEventInit);
}

/** @category Web Workers */
interface AbstractWorkerEventMap {
  "error": ErrorEvent;
}

/** @category Web Workers */
interface WorkerEventMap extends AbstractWorkerEventMap {
  "message": MessageEvent;
  "messageerror": MessageEvent;
}

/** @category Web Workers */
interface WorkerOptions {
  type?: "classic" | "module";
  name?: string;
}

/** @category Web Workers */
declare class Worker extends EventTarget {
  onerror?: (e: ErrorEvent) => void;
  onmessage?: (e: MessageEvent) => void;
  onmessageerror?: (e: MessageEvent) => void;
  constructor(
    specifier: string | URL,
    options?: WorkerOptions,
  );
  postMessage(message: any, transfer: Transferable[]): void;
  postMessage(message: any, options?: StructuredSerializeOptions): void;
  addEventListener<K extends keyof WorkerEventMap>(
    type: K,
    listener: (this: Worker, ev: WorkerEventMap[K]) => any,
    options?: boolean | AddEventListenerOptions,
  ): void;
  addEventListener(
    type: string,
    listener: EventListenerOrEventListenerObject,
    options?: boolean | AddEventListenerOptions,
  ): void;
  removeEventListener<K extends keyof WorkerEventMap>(
    type: K,
    listener: (this: Worker, ev: WorkerEventMap[K]) => any,
    options?: boolean | EventListenerOptions,
  ): void;
  removeEventListener(
    type: string,
    listener: EventListenerOrEventListenerObject,
    options?: boolean | EventListenerOptions,
  ): void;
  terminate(): void;
}

/** @category Performance */
declare type PerformanceEntryList = PerformanceEntry[];

/** @category Performance */
declare class Performance extends EventTarget {
  /** Returns a timestamp representing the start of the performance measurement. */
  readonly timeOrigin: number;
  constructor();

  /** Removes the stored timestamp with the associated name. */
  clearMarks(markName?: string): void;

  /** Removes stored timestamp with the associated name. */
  clearMeasures(measureName?: string): void;

  getEntries(): PerformanceEntryList;
  getEntriesByName(name: string, type?: string): PerformanceEntryList;
  getEntriesByType(type: string): PerformanceEntryList;

  /** Stores a timestamp with the associated name (a "mark"). */
  mark(markName: string, options?: PerformanceMarkOptions): PerformanceMark;

  /** Stores the `DOMHighResTimeStamp` duration between two marks along with the
   * associated name (a "measure"). */
  measure(
    measureName: string,
    options?: PerformanceMeasureOptions,
  ): PerformanceMeasure;
  /** Stores the `DOMHighResTimeStamp` duration between two marks along with the
   * associated name (a "measure"). */
  measure(
    measureName: string,
    startMark?: string,
    endMark?: string,
  ): PerformanceMeasure;

  /** Returns a current time from Deno's start in milliseconds.
   *
   * Use the permission flag `--allow-hrtime` return a precise value.
   *
   * ```ts
   * const t = performance.now();
   * console.log(`${t} ms since start!`);
   * ```
   *
   * @tags allow-hrtime
   */
  now(): number;

  /** Returns a JSON representation of the performance object. */
  toJSON(): any;
}

/** @category Performance */
declare var performance: Performance;

/** @category Performance */
declare interface PerformanceMarkOptions {
  /** Metadata to be included in the mark. */
  detail?: any;

  /** Timestamp to be used as the mark time. */
  startTime?: number;
}

declare interface PerformanceMeasureOptions {
  /** Metadata to be included in the measure. */
  detail?: any;

  /** Timestamp to be used as the start time or string to be used as start
   * mark. */
  start?: string | number;

  /** Duration between the start and end times. */
  duration?: number;

  /** Timestamp to be used as the end time or string to be used as end mark. */
  end?: string | number;
}

/** Encapsulates a single performance metric that is part of the performance
 * timeline. A performance entry can be directly created by making a performance
 * mark or measure (for example by calling the `.mark()` method) at an explicit
 * point in an application.
 *
 * @category Performance
 */
declare class PerformanceEntry {
  readonly duration: number;
  readonly entryType: string;
  readonly name: string;
  readonly startTime: number;
  toJSON(): any;
}

/** `PerformanceMark` is an abstract interface for `PerformanceEntry` objects
 * with an entryType of `"mark"`. Entries of this type are created by calling
 * `performance.mark()` to add a named `DOMHighResTimeStamp` (the mark) to the
 * performance timeline.
 *
 * @category Performance
 */
declare class PerformanceMark extends PerformanceEntry {
  readonly detail: any;
  readonly entryType: "mark";
  constructor(name: string, options?: PerformanceMarkOptions);
}

/** `PerformanceMeasure` is an abstract interface for `PerformanceEntry` objects
 * with an entryType of `"measure"`. Entries of this type are created by calling
 * `performance.measure()` to add a named `DOMHighResTimeStamp` (the measure)
 * between two marks to the performance timeline.
 *
 * @category Performance
 */
declare class PerformanceMeasure extends PerformanceEntry {
  readonly detail: any;
  readonly entryType: "measure";
}

/** @category DOM Events */
declare interface CustomEventInit<T = any> extends EventInit {
  detail?: T;
}

/** @category DOM Events */
declare class CustomEvent<T = any> extends Event {
  constructor(typeArg: string, eventInitDict?: CustomEventInit<T>);
  /** Returns any custom data event was created with. Typically used for
   * synthetic events. */
  readonly detail: T;
}

/** @category DOM APIs */
interface ErrorConstructor {
  /** See https://v8.dev/docs/stack-trace-api#stack-trace-collection-for-custom-exceptions. */
  captureStackTrace(error: Object, constructor?: Function): void;
  // TODO(nayeemrmn): Support `Error.prepareStackTrace()`. We currently use this
  // internally in a way that makes it unavailable for users.
}

// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.

// deno-lint-ignore-file no-var

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

/** @category Cache API */
declare var caches: CacheStorage;

/** @category Cache API */
declare interface CacheStorage {
  /** Open a cache storage for the provided name. */
  open(cacheName: string): Promise<Cache>;
  /** Check if cache already exists for the provided name. */
  has(cacheName: string): Promise<boolean>;
  /** Delete cache storage for the provided name. */
  delete(cacheName: string): Promise<boolean>;
}

/** @category Cache API */
declare interface Cache {
  /**
   * Put the provided request/response into the cache.
   *
   * How is the API different from browsers?
   * 1. You cannot match cache objects using by relative paths.
   * 2. You cannot pass options like `ignoreVary`, `ignoreMethod`, `ignoreSearch`.
   */
  put(request: RequestInfo | URL, response: Response): Promise<void>;
  /**
   * Return cache object matching the provided request.
   *
   * How is the API different from browsers?
   * 1. You cannot match cache objects using by relative paths.
   * 2. You cannot pass options like `ignoreVary`, `ignoreMethod`, `ignoreSearch`.
   */
  match(
    request: RequestInfo | URL,
    options?: CacheQueryOptions,
  ): Promise<Response | undefined>;
  /**
   * Delete cache object matching the provided request.
   *
   * How is the API different from browsers?
   * 1. You cannot delete cache objects using by relative paths.
   * 2. You cannot pass options like `ignoreVary`, `ignoreMethod`, `ignoreSearch`.
   */
  delete(
    request: RequestInfo | URL,
    options?: CacheQueryOptions,
  ): Promise<boolean>;
}

/** @category Cache API */
declare var Cache: {
  prototype: Cache;
  new (name: string): Cache;
};

/** @category Cache API */
declare var CacheStorage: {
  prototype: CacheStorage;
  new (): CacheStorage;
};

/** @category Cache API */
interface CacheQueryOptions {
  ignoreMethod?: boolean;
  ignoreSearch?: boolean;
  ignoreVary?: boolean;
}

// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.

/// <reference no-default-lib="true" />
/// <reference lib="deno.ns" />
/// <reference lib="deno.shared_globals" />
/// <reference lib="deno.webgpu" />
/// <reference lib="deno.webstorage" />
/// <reference lib="esnext" />
/// <reference lib="deno.cache" />

/** @category Web APIs */
interface WindowEventMap {
  "error": ErrorEvent;
  "unhandledrejection": PromiseRejectionEvent;
}

/** @category Web APIs */
declare class Window extends EventTarget {
  new(): Window;
  readonly window: Window & typeof globalThis;
  readonly self: Window & typeof globalThis;
  onerror: ((this: Window, ev: ErrorEvent) => any) | null;
  onload: ((this: Window, ev: Event) => any) | null;
  onunload: ((this: Window, ev: Event) => any) | null;
  onunhandledrejection:
    | ((this: Window, ev: PromiseRejectionEvent) => any)
    | null;
  close: () => void;
  readonly closed: boolean;
  alert: (message?: string) => void;
  confirm: (message?: string) => boolean;
  prompt: (message?: string, defaultValue?: string) => string | null;
  Deno: typeof Deno;
  Navigator: typeof Navigator;
  navigator: Navigator;
  Location: typeof Location;
  location: Location;
  localStorage: Storage;
  sessionStorage: Storage;
  caches: CacheStorage;

  addEventListener<K extends keyof WindowEventMap>(
    type: K,
    listener: (
      this: Window,
      ev: WindowEventMap[K],
    ) => any,
    options?: boolean | AddEventListenerOptions,
  ): void;
  addEventListener(
    type: string,
    listener: EventListenerOrEventListenerObject,
    options?: boolean | AddEventListenerOptions,
  ): void;
  removeEventListener<K extends keyof WindowEventMap>(
    type: K,
    listener: (
      this: Window,
      ev: WindowEventMap[K],
    ) => any,
    options?: boolean | EventListenerOptions,
  ): void;
  removeEventListener(
    type: string,
    listener: EventListenerOrEventListenerObject,
    options?: boolean | EventListenerOptions,
  ): void;
}

/** @category Web APIs */
declare var window: Window & typeof globalThis;
/** @category Web APIs */
declare var self: Window & typeof globalThis;
/** @category DOM Events */
declare var onerror: ((this: Window, ev: ErrorEvent) => any) | null;
/** @category DOM Events */
declare var onload: ((this: Window, ev: Event) => any) | null;
/** @category DOM Events */
declare var onunload: ((this: Window, ev: Event) => any) | null;
/** @category Observability */
declare var onunhandledrejection:
  | ((this: Window, ev: PromiseRejectionEvent) => any)
  | null;
/** @category Web Storage API */
declare var localStorage: Storage;
/** @category Web Storage API */
declare var sessionStorage: Storage;
/** @category Cache API */
declare var caches: CacheStorage;

/** @category Web APIs */
declare class Navigator {
  constructor();
  readonly gpu: GPU;
  readonly hardwareConcurrency: number;
  readonly userAgent: string;
}

/** @category Web APIs */
declare var navigator: Navigator;

/**
 * Shows the given message and waits for the enter key pressed.
 *
 * If the stdin is not interactive, it does nothing.
 *
 * @category Web APIs
 *
 * @param message
 */
declare function alert(message?: string): void;

/**
 * Shows the given message and waits for the answer. Returns the user's answer as boolean.
 *
 * Only `y` and `Y` are considered as true.
 *
 * If the stdin is not interactive, it returns false.
 *
 * @category Web APIs
 *
 * @param message
 */
declare function confirm(message?: string): boolean;

/**
 * Shows the given message and waits for the user's input. Returns the user's input as string.
 *
 * If the default value is given and the user inputs the empty string, then it returns the given
 * default value.
 *
 * If the default value is not given and the user inputs the empty string, it returns null.
 *
 * If the stdin is not interactive, it returns null.
 *
 * @category Web APIs
 *
 * @param message
 * @param defaultValue
 */
declare function prompt(message?: string, defaultValue?: string): string | null;

/** Registers an event listener in the global scope, which will be called
 * synchronously whenever the event `type` is dispatched.
 *
 * ```ts
 * addEventListener('unload', () => { console.log('All finished!'); });
 * ...
 * dispatchEvent(new Event('unload'));
 * ```
 *
 * @category DOM Events
 */
declare function addEventListener<
  K extends keyof WindowEventMap,
>(
  type: K,
  listener: (this: Window, ev: WindowEventMap[K]) => any,
  options?: boolean | AddEventListenerOptions,
): void;
/** @category DOM Events */
declare function addEventListener(
  type: string,
  listener: EventListenerOrEventListenerObject,
  options?: boolean | AddEventListenerOptions,
): void;

/** Remove a previously registered event listener from the global scope
 *
 * ```ts
 * const listener = () => { console.log('hello'); };
 * addEventListener('load', listener);
 * removeEventListener('load', listener);
 * ```
 *
 * @category DOM Events
 */
declare function removeEventListener<
  K extends keyof WindowEventMap,
>(
  type: K,
  listener: (this: Window, ev: WindowEventMap[K]) => any,
  options?: boolean | EventListenerOptions,
): void;
declare function removeEventListener(
  type: string,
  listener: EventListenerOrEventListenerObject,
  options?: boolean | EventListenerOptions,
): void;

// TODO(nayeemrmn): Move this to `extensions/web` where its implementation is.
// The types there must first be split into window, worker and global types.
/** The location (URL) of the object it is linked to. Changes done on it are
 * reflected on the object it relates to. Accessible via
 * `globalThis.location`.
 *
 * @category Web APIs
 */
declare class Location {
  constructor();
  /** Returns a DOMStringList object listing the origins of the ancestor
   * browsing contexts, from the parent browsing context to the top-level
   * browsing context.
   *
   * Always empty in Deno. */
  readonly ancestorOrigins: DOMStringList;
  /** Returns the Location object's URL's fragment (includes leading "#" if
   * non-empty).
   *
   * Cannot be set in Deno. */
  hash: string;
  /** Returns the Location object's URL's host and port (if different from the
   * default port for the scheme).
   *
   * Cannot be set in Deno. */
  host: string;
  /** Returns the Location object's URL's host.
   *
   * Cannot be set in Deno. */
  hostname: string;
  /** Returns the Location object's URL.
   *
   * Cannot be set in Deno. */
  href: string;
  toString(): string;
  /** Returns the Location object's URL's origin. */
  readonly origin: string;
  /** Returns the Location object's URL's path.
   *
   * Cannot be set in Deno. */
  pathname: string;
  /** Returns the Location object's URL's port.
   *
   * Cannot be set in Deno. */
  port: string;
  /** Returns the Location object's URL's scheme.
   *
   * Cannot be set in Deno. */
  protocol: string;
  /** Returns the Location object's URL's query (includes leading "?" if
   * non-empty).
   *
   * Cannot be set in Deno. */
  search: string;
  /** Navigates to the given URL.
   *
   * Cannot be set in Deno. */
  assign(url: string): void;
  /** Reloads the current page.
   *
   * Disabled in Deno. */
  reload(): void;
  /** @deprecated */
  reload(forcedReload: boolean): void;
  /** Removes the current page from the session history and navigates to the
   * given URL.
   *
   * Disabled in Deno. */
  replace(url: string): void;
}

// TODO(nayeemrmn): Move this to `extensions/web` where its implementation is.
// The types there must first be split into window, worker and global types.
/** @category Web APIs */
declare var location: Location;