'use strict';

Object.defineProperty(exports, '__esModule', { value: true });

var require$$0$3 = require('fs');
var path$6 = require('path');
var process$2 = require('process');
var require$$0$7 = require('url');
var require$$0$6 = require('events');
var require$$1 = require('util');
var require$$0$4 = require('stream');
var require$$4 = require('http');
var require$$1$3 = require('https');
var require$$0$1 = require('dns');
var require$$0$2 = require('os');
var require$$0$5 = require('buffer');
var require$$1$1 = require('zlib');
var require$$0$8 = require('http2');
var require$$1$2 = require('tls');
var require$$0$9 = require('net');
var require$$0$a = require('child_process');
var require$$0$b = require('assert');

function _interopDefaultLegacy (e) { return e && typeof e === 'object' && 'default' in e ? e : { 'default': e }; }

var require$$0__default$2 = /*#__PURE__*/_interopDefaultLegacy(require$$0$3);
var path__default = /*#__PURE__*/_interopDefaultLegacy(path$6);
var process__default = /*#__PURE__*/_interopDefaultLegacy(process$2);
var require$$0__default$6 = /*#__PURE__*/_interopDefaultLegacy(require$$0$7);
var require$$0__default$5 = /*#__PURE__*/_interopDefaultLegacy(require$$0$6);
var require$$1__default = /*#__PURE__*/_interopDefaultLegacy(require$$1);
var require$$0__default$3 = /*#__PURE__*/_interopDefaultLegacy(require$$0$4);
var require$$4__default = /*#__PURE__*/_interopDefaultLegacy(require$$4);
var require$$1__default$3 = /*#__PURE__*/_interopDefaultLegacy(require$$1$3);
var require$$0__default = /*#__PURE__*/_interopDefaultLegacy(require$$0$1);
var require$$0__default$1 = /*#__PURE__*/_interopDefaultLegacy(require$$0$2);
var require$$0__default$4 = /*#__PURE__*/_interopDefaultLegacy(require$$0$5);
var require$$1__default$1 = /*#__PURE__*/_interopDefaultLegacy(require$$1$1);
var require$$0__default$7 = /*#__PURE__*/_interopDefaultLegacy(require$$0$8);
var require$$1__default$2 = /*#__PURE__*/_interopDefaultLegacy(require$$1$2);
var require$$0__default$8 = /*#__PURE__*/_interopDefaultLegacy(require$$0$9);
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var commonjsGlobal = typeof globalThis !== 'undefined' ? globalThis : typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {};

function getDefaultExportFromCjs (x) {
	return x && x.__esModule && Object.prototype.hasOwnProperty.call(x, 'default') ? x['default'] : x;
}

var source$4 = {exports: {}};

var create = {};

var dist = {exports: {}};

(function (module, exports) {
	/// <reference lib="es2018"/>
	/// <reference lib="dom"/>
	/// <reference types="node"/>
	Object.defineProperty(exports, "__esModule", { value: true });
	const typedArrayTypeNames = [
	    'Int8Array',
	    'Uint8Array',
	    'Uint8ClampedArray',
	    'Int16Array',
	    'Uint16Array',
	    'Int32Array',
	    'Uint32Array',
	    'Float32Array',
	    'Float64Array',
	    'BigInt64Array',
	    'BigUint64Array'
	];
	function isTypedArrayName(name) {
	    return typedArrayTypeNames.includes(name);
	}
	const objectTypeNames = [
	    'Function',
	    'Generator',
	    'AsyncGenerator',
	    'GeneratorFunction',
	    'AsyncGeneratorFunction',
	    'AsyncFunction',
	    'Observable',
	    'Array',
	    'Buffer',
	    'Blob',
	    'Object',
	    'RegExp',
	    'Date',
	    'Error',
	    'Map',
	    'Set',
	    'WeakMap',
	    'WeakSet',
	    'ArrayBuffer',
	    'SharedArrayBuffer',
	    'DataView',
	    'Promise',
	    'URL',
	    'FormData',
	    'URLSearchParams',
	    'HTMLElement',
	    ...typedArrayTypeNames
	];
	function isObjectTypeName(name) {
	    return objectTypeNames.includes(name);
	}
	const primitiveTypeNames = [
	    'null',
	    'undefined',
	    'string',
	    'number',
	    'bigint',
	    'boolean',
	    'symbol'
	];
	function isPrimitiveTypeName(name) {
	    return primitiveTypeNames.includes(name);
	}
	// eslint-disable-next-line @typescript-eslint/ban-types
	function isOfType(type) {
	    return (value) => typeof value === type;
	}
	const { toString } = Object.prototype;
	const getObjectType = (value) => {
	    const objectTypeName = toString.call(value).slice(8, -1);
	    if (/HTML\w+Element/.test(objectTypeName) && is.domElement(value)) {
	        return 'HTMLElement';
	    }
	    if (isObjectTypeName(objectTypeName)) {
	        return objectTypeName;
	    }
	    return undefined;
	};
	const isObjectOfType = (type) => (value) => getObjectType(value) === type;
	function is(value) {
	    if (value === null) {
	        return 'null';
	    }
	    switch (typeof value) {
	        case 'undefined':
	            return 'undefined';
	        case 'string':
	            return 'string';
	        case 'number':
	            return 'number';
	        case 'boolean':
	            return 'boolean';
	        case 'function':
	            return 'Function';
	        case 'bigint':
	            return 'bigint';
	        case 'symbol':
	            return 'symbol';
	    }
	    if (is.observable(value)) {
	        return 'Observable';
	    }
	    if (is.array(value)) {
	        return 'Array';
	    }
	    if (is.buffer(value)) {
	        return 'Buffer';
	    }
	    const tagType = getObjectType(value);
	    if (tagType) {
	        return tagType;
	    }
	    if (value instanceof String || value instanceof Boolean || value instanceof Number) {
	        throw new TypeError('Please don\'t use object wrappers for primitive types');
	    }
	    return 'Object';
	}
	is.undefined = isOfType('undefined');
	is.string = isOfType('string');
	const isNumberType = isOfType('number');
	is.number = (value) => isNumberType(value) && !is.nan(value);
	is.bigint = isOfType('bigint');
	// eslint-disable-next-line @typescript-eslint/ban-types
	is.function_ = isOfType('function');
	is.null_ = (value) => value === null;
	is.class_ = (value) => is.function_(value) && value.toString().startsWith('class ');
	is.boolean = (value) => value === true || value === false;
	is.symbol = isOfType('symbol');
	is.numericString = (value) => is.string(value) && !is.emptyStringOrWhitespace(value) && !Number.isNaN(Number(value));
	is.array = (value, assertion) => {
	    if (!Array.isArray(value)) {
	        return false;
	    }
	    if (!is.function_(assertion)) {
	        return true;
	    }
	    return value.every(assertion);
	};
	is.buffer = (value) => { var _a, _b, _c, _d; return (_d = (_c = (_b = (_a = value) === null || _a === void 0 ? void 0 : _a.constructor) === null || _b === void 0 ? void 0 : _b.isBuffer) === null || _c === void 0 ? void 0 : _c.call(_b, value)) !== null && _d !== void 0 ? _d : false; };
	is.blob = (value) => isObjectOfType('Blob')(value);
	is.nullOrUndefined = (value) => is.null_(value) || is.undefined(value);
	is.object = (value) => !is.null_(value) && (typeof value === 'object' || is.function_(value));
	is.iterable = (value) => { var _a; return is.function_((_a = value) === null || _a === void 0 ? void 0 : _a[Symbol.iterator]); };
	is.asyncIterable = (value) => { var _a; return is.function_((_a = value) === null || _a === void 0 ? void 0 : _a[Symbol.asyncIterator]); };
	is.generator = (value) => { var _a, _b; return is.iterable(value) && is.function_((_a = value) === null || _a === void 0 ? void 0 : _a.next) && is.function_((_b = value) === null || _b === void 0 ? void 0 : _b.throw); };
	is.asyncGenerator = (value) => is.asyncIterable(value) && is.function_(value.next) && is.function_(value.throw);
	is.nativePromise = (value) => isObjectOfType('Promise')(value);
	const hasPromiseAPI = (value) => {
	    var _a, _b;
	    return is.function_((_a = value) === null || _a === void 0 ? void 0 : _a.then) &&
	        is.function_((_b = value) === null || _b === void 0 ? void 0 : _b.catch);
	};
	is.promise = (value) => is.nativePromise(value) || hasPromiseAPI(value);
	is.generatorFunction = isObjectOfType('GeneratorFunction');
	is.asyncGeneratorFunction = (value) => getObjectType(value) === 'AsyncGeneratorFunction';
	is.asyncFunction = (value) => getObjectType(value) === 'AsyncFunction';
	// eslint-disable-next-line no-prototype-builtins, @typescript-eslint/ban-types
	is.boundFunction = (value) => is.function_(value) && !value.hasOwnProperty('prototype');
	is.regExp = isObjectOfType('RegExp');
	is.date = isObjectOfType('Date');
	is.error = isObjectOfType('Error');
	is.map = (value) => isObjectOfType('Map')(value);
	is.set = (value) => isObjectOfType('Set')(value);
	is.weakMap = (value) => isObjectOfType('WeakMap')(value);
	is.weakSet = (value) => isObjectOfType('WeakSet')(value);
	is.int8Array = isObjectOfType('Int8Array');
	is.uint8Array = isObjectOfType('Uint8Array');
	is.uint8ClampedArray = isObjectOfType('Uint8ClampedArray');
	is.int16Array = isObjectOfType('Int16Array');
	is.uint16Array = isObjectOfType('Uint16Array');
	is.int32Array = isObjectOfType('Int32Array');
	is.uint32Array = isObjectOfType('Uint32Array');
	is.float32Array = isObjectOfType('Float32Array');
	is.float64Array = isObjectOfType('Float64Array');
	is.bigInt64Array = isObjectOfType('BigInt64Array');
	is.bigUint64Array = isObjectOfType('BigUint64Array');
	is.arrayBuffer = isObjectOfType('ArrayBuffer');
	is.sharedArrayBuffer = isObjectOfType('SharedArrayBuffer');
	is.dataView = isObjectOfType('DataView');
	is.enumCase = (value, targetEnum) => Object.values(targetEnum).includes(value);
	is.directInstanceOf = (instance, class_) => Object.getPrototypeOf(instance) === class_.prototype;
	is.urlInstance = (value) => isObjectOfType('URL')(value);
	is.urlString = (value) => {
	    if (!is.string(value)) {
	        return false;
	    }
	    try {
	        new URL(value); // eslint-disable-line no-new
	        return true;
	    }
	    catch (_a) {
	        return false;
	    }
	};
	// Example: `is.truthy = (value: unknown): value is (not false | not 0 | not '' | not undefined | not null) => Boolean(value);`
	is.truthy = (value) => Boolean(value);
	// Example: `is.falsy = (value: unknown): value is (not true | 0 | '' | undefined | null) => Boolean(value);`
	is.falsy = (value) => !value;
	is.nan = (value) => Number.isNaN(value);
	is.primitive = (value) => is.null_(value) || isPrimitiveTypeName(typeof value);
	is.integer = (value) => Number.isInteger(value);
	is.safeInteger = (value) => Number.isSafeInteger(value);
	is.plainObject = (value) => {
	    // From: https://github.com/sindresorhus/is-plain-obj/blob/main/index.js
	    if (toString.call(value) !== '[object Object]') {
	        return false;
	    }
	    const prototype = Object.getPrototypeOf(value);
	    return prototype === null || prototype === Object.getPrototypeOf({});
	};
	is.typedArray = (value) => isTypedArrayName(getObjectType(value));
	const isValidLength = (value) => is.safeInteger(value) && value >= 0;
	is.arrayLike = (value) => !is.nullOrUndefined(value) && !is.function_(value) && isValidLength(value.length);
	is.inRange = (value, range) => {
	    if (is.number(range)) {
	        return value >= Math.min(0, range) && value <= Math.max(range, 0);
	    }
	    if (is.array(range) && range.length === 2) {
	        return value >= Math.min(...range) && value <= Math.max(...range);
	    }
	    throw new TypeError(`Invalid range: ${JSON.stringify(range)}`);
	};
	const NODE_TYPE_ELEMENT = 1;
	const DOM_PROPERTIES_TO_CHECK = [
	    'innerHTML',
	    'ownerDocument',
	    'style',
	    'attributes',
	    'nodeValue'
	];
	is.domElement = (value) => {
	    return is.object(value) &&
	        value.nodeType === NODE_TYPE_ELEMENT &&
	        is.string(value.nodeName) &&
	        !is.plainObject(value) &&
	        DOM_PROPERTIES_TO_CHECK.every(property => property in value);
	};
	is.observable = (value) => {
	    var _a, _b, _c, _d;
	    if (!value) {
	        return false;
	    }
	    // eslint-disable-next-line no-use-extend-native/no-use-extend-native
	    if (value === ((_b = (_a = value)[Symbol.observable]) === null || _b === void 0 ? void 0 : _b.call(_a))) {
	        return true;
	    }
	    if (value === ((_d = (_c = value)['@@observable']) === null || _d === void 0 ? void 0 : _d.call(_c))) {
	        return true;
	    }
	    return false;
	};
	is.nodeStream = (value) => is.object(value) && is.function_(value.pipe) && !is.observable(value);
	is.infinite = (value) => value === Infinity || value === -Infinity;
	const isAbsoluteMod2 = (remainder) => (value) => is.integer(value) && Math.abs(value % 2) === remainder;
	is.evenInteger = isAbsoluteMod2(0);
	is.oddInteger = isAbsoluteMod2(1);
	is.emptyArray = (value) => is.array(value) && value.length === 0;
	is.nonEmptyArray = (value) => is.array(value) && value.length > 0;
	is.emptyString = (value) => is.string(value) && value.length === 0;
	const isWhiteSpaceString = (value) => is.string(value) && !/\S/.test(value);
	is.emptyStringOrWhitespace = (value) => is.emptyString(value) || isWhiteSpaceString(value);
	// TODO: Use `not ''` when the `not` operator is available.
	is.nonEmptyString = (value) => is.string(value) && value.length > 0;
	// TODO: Use `not ''` when the `not` operator is available.
	is.nonEmptyStringAndNotWhitespace = (value) => is.string(value) && !is.emptyStringOrWhitespace(value);
	is.emptyObject = (value) => is.object(value) && !is.map(value) && !is.set(value) && Object.keys(value).length === 0;
	// TODO: Use `not` operator here to remove `Map` and `Set` from type guard:
	// - https://github.com/Microsoft/TypeScript/pull/29317
	is.nonEmptyObject = (value) => is.object(value) && !is.map(value) && !is.set(value) && Object.keys(value).length > 0;
	is.emptySet = (value) => is.set(value) && value.size === 0;
	is.nonEmptySet = (value) => is.set(value) && value.size > 0;
	is.emptyMap = (value) => is.map(value) && value.size === 0;
	is.nonEmptyMap = (value) => is.map(value) && value.size > 0;
	// `PropertyKey` is any value that can be used as an object key (string, number, or symbol)
	is.propertyKey = (value) => is.any([is.string, is.number, is.symbol], value);
	is.formData = (value) => isObjectOfType('FormData')(value);
	is.urlSearchParams = (value) => isObjectOfType('URLSearchParams')(value);
	const predicateOnArray = (method, predicate, values) => {
	    if (!is.function_(predicate)) {
	        throw new TypeError(`Invalid predicate: ${JSON.stringify(predicate)}`);
	    }
	    if (values.length === 0) {
	        throw new TypeError('Invalid number of values');
	    }
	    return method.call(values, predicate);
	};
	is.any = (predicate, ...values) => {
	    const predicates = is.array(predicate) ? predicate : [predicate];
	    return predicates.some(singlePredicate => predicateOnArray(Array.prototype.some, singlePredicate, values));
	};
	is.all = (predicate, ...values) => predicateOnArray(Array.prototype.every, predicate, values);
	const assertType = (condition, description, value, options = {}) => {
	    if (!condition) {
	        const { multipleValues } = options;
	        const valuesMessage = multipleValues ?
	            `received values of types ${[
	                ...new Set(value.map(singleValue => `\`${is(singleValue)}\``))
	            ].join(', ')}` :
	            `received value of type \`${is(value)}\``;
	        throw new TypeError(`Expected value which is \`${description}\`, ${valuesMessage}.`);
	    }
	};
	exports.assert = {
	    // Unknowns.
	    undefined: (value) => assertType(is.undefined(value), 'undefined', value),
	    string: (value) => assertType(is.string(value), 'string', value),
	    number: (value) => assertType(is.number(value), 'number', value),
	    bigint: (value) => assertType(is.bigint(value), 'bigint', value),
	    // eslint-disable-next-line @typescript-eslint/ban-types
	    function_: (value) => assertType(is.function_(value), 'Function', value),
	    null_: (value) => assertType(is.null_(value), 'null', value),
	    class_: (value) => assertType(is.class_(value), "Class" /* class_ */, value),
	    boolean: (value) => assertType(is.boolean(value), 'boolean', value),
	    symbol: (value) => assertType(is.symbol(value), 'symbol', value),
	    numericString: (value) => assertType(is.numericString(value), "string with a number" /* numericString */, value),
	    array: (value, assertion) => {
	        const assert = assertType;
	        assert(is.array(value), 'Array', value);
	        if (assertion) {
	            value.forEach(assertion);
	        }
	    },
	    buffer: (value) => assertType(is.buffer(value), 'Buffer', value),
	    blob: (value) => assertType(is.blob(value), 'Blob', value),
	    nullOrUndefined: (value) => assertType(is.nullOrUndefined(value), "null or undefined" /* nullOrUndefined */, value),
	    object: (value) => assertType(is.object(value), 'Object', value),
	    iterable: (value) => assertType(is.iterable(value), "Iterable" /* iterable */, value),
	    asyncIterable: (value) => assertType(is.asyncIterable(value), "AsyncIterable" /* asyncIterable */, value),
	    generator: (value) => assertType(is.generator(value), 'Generator', value),
	    asyncGenerator: (value) => assertType(is.asyncGenerator(value), 'AsyncGenerator', value),
	    nativePromise: (value) => assertType(is.nativePromise(value), "native Promise" /* nativePromise */, value),
	    promise: (value) => assertType(is.promise(value), 'Promise', value),
	    generatorFunction: (value) => assertType(is.generatorFunction(value), 'GeneratorFunction', value),
	    asyncGeneratorFunction: (value) => assertType(is.asyncGeneratorFunction(value), 'AsyncGeneratorFunction', value),
	    // eslint-disable-next-line @typescript-eslint/ban-types
	    asyncFunction: (value) => assertType(is.asyncFunction(value), 'AsyncFunction', value),
	    // eslint-disable-next-line @typescript-eslint/ban-types
	    boundFunction: (value) => assertType(is.boundFunction(value), 'Function', value),
	    regExp: (value) => assertType(is.regExp(value), 'RegExp', value),
	    date: (value) => assertType(is.date(value), 'Date', value),
	    error: (value) => assertType(is.error(value), 'Error', value),
	    map: (value) => assertType(is.map(value), 'Map', value),
	    set: (value) => assertType(is.set(value), 'Set', value),
	    weakMap: (value) => assertType(is.weakMap(value), 'WeakMap', value),
	    weakSet: (value) => assertType(is.weakSet(value), 'WeakSet', value),
	    int8Array: (value) => assertType(is.int8Array(value), 'Int8Array', value),
	    uint8Array: (value) => assertType(is.uint8Array(value), 'Uint8Array', value),
	    uint8ClampedArray: (value) => assertType(is.uint8ClampedArray(value), 'Uint8ClampedArray', value),
	    int16Array: (value) => assertType(is.int16Array(value), 'Int16Array', value),
	    uint16Array: (value) => assertType(is.uint16Array(value), 'Uint16Array', value),
	    int32Array: (value) => assertType(is.int32Array(value), 'Int32Array', value),
	    uint32Array: (value) => assertType(is.uint32Array(value), 'Uint32Array', value),
	    float32Array: (value) => assertType(is.float32Array(value), 'Float32Array', value),
	    float64Array: (value) => assertType(is.float64Array(value), 'Float64Array', value),
	    bigInt64Array: (value) => assertType(is.bigInt64Array(value), 'BigInt64Array', value),
	    bigUint64Array: (value) => assertType(is.bigUint64Array(value), 'BigUint64Array', value),
	    arrayBuffer: (value) => assertType(is.arrayBuffer(value), 'ArrayBuffer', value),
	    sharedArrayBuffer: (value) => assertType(is.sharedArrayBuffer(value), 'SharedArrayBuffer', value),
	    dataView: (value) => assertType(is.dataView(value), 'DataView', value),
	    enumCase: (value, targetEnum) => assertType(is.enumCase(value, targetEnum), 'EnumCase', value),
	    urlInstance: (value) => assertType(is.urlInstance(value), 'URL', value),
	    urlString: (value) => assertType(is.urlString(value), "string with a URL" /* urlString */, value),
	    truthy: (value) => assertType(is.truthy(value), "truthy" /* truthy */, value),
	    falsy: (value) => assertType(is.falsy(value), "falsy" /* falsy */, value),
	    nan: (value) => assertType(is.nan(value), "NaN" /* nan */, value),
	    primitive: (value) => assertType(is.primitive(value), "primitive" /* primitive */, value),
	    integer: (value) => assertType(is.integer(value), "integer" /* integer */, value),
	    safeInteger: (value) => assertType(is.safeInteger(value), "integer" /* safeInteger */, value),
	    plainObject: (value) => assertType(is.plainObject(value), "plain object" /* plainObject */, value),
	    typedArray: (value) => assertType(is.typedArray(value), "TypedArray" /* typedArray */, value),
	    arrayLike: (value) => assertType(is.arrayLike(value), "array-like" /* arrayLike */, value),
	    domElement: (value) => assertType(is.domElement(value), "HTMLElement" /* domElement */, value),
	    observable: (value) => assertType(is.observable(value), 'Observable', value),
	    nodeStream: (value) => assertType(is.nodeStream(value), "Node.js Stream" /* nodeStream */, value),
	    infinite: (value) => assertType(is.infinite(value), "infinite number" /* infinite */, value),
	    emptyArray: (value) => assertType(is.emptyArray(value), "empty array" /* emptyArray */, value),
	    nonEmptyArray: (value) => assertType(is.nonEmptyArray(value), "non-empty array" /* nonEmptyArray */, value),
	    emptyString: (value) => assertType(is.emptyString(value), "empty string" /* emptyString */, value),
	    emptyStringOrWhitespace: (value) => assertType(is.emptyStringOrWhitespace(value), "empty string or whitespace" /* emptyStringOrWhitespace */, value),
	    nonEmptyString: (value) => assertType(is.nonEmptyString(value), "non-empty string" /* nonEmptyString */, value),
	    nonEmptyStringAndNotWhitespace: (value) => assertType(is.nonEmptyStringAndNotWhitespace(value), "non-empty string and not whitespace" /* nonEmptyStringAndNotWhitespace */, value),
	    emptyObject: (value) => assertType(is.emptyObject(value), "empty object" /* emptyObject */, value),
	    nonEmptyObject: (value) => assertType(is.nonEmptyObject(value), "non-empty object" /* nonEmptyObject */, value),
	    emptySet: (value) => assertType(is.emptySet(value), "empty set" /* emptySet */, value),
	    nonEmptySet: (value) => assertType(is.nonEmptySet(value), "non-empty set" /* nonEmptySet */, value),
	    emptyMap: (value) => assertType(is.emptyMap(value), "empty map" /* emptyMap */, value),
	    nonEmptyMap: (value) => assertType(is.nonEmptyMap(value), "non-empty map" /* nonEmptyMap */, value),
	    propertyKey: (value) => assertType(is.propertyKey(value), 'PropertyKey', value),
	    formData: (value) => assertType(is.formData(value), 'FormData', value),
	    urlSearchParams: (value) => assertType(is.urlSearchParams(value), 'URLSearchParams', value),
	    // Numbers.
	    evenInteger: (value) => assertType(is.evenInteger(value), "even integer" /* evenInteger */, value),
	    oddInteger: (value) => assertType(is.oddInteger(value), "odd integer" /* oddInteger */, value),
	    // Two arguments.
	    directInstanceOf: (instance, class_) => assertType(is.directInstanceOf(instance, class_), "T" /* directInstanceOf */, instance),
	    inRange: (value, range) => assertType(is.inRange(value, range), "in range" /* inRange */, value),
	    // Variadic functions.
	    any: (predicate, ...values) => {
	        return assertType(is.any(predicate, ...values), "predicate returns truthy for any value" /* any */, values, { multipleValues: true });
	    },
	    all: (predicate, ...values) => assertType(is.all(predicate, ...values), "predicate returns truthy for all values" /* all */, values, { multipleValues: true })
	};
	// Some few keywords are reserved, but we'll populate them for Node.js users
	// See https://github.com/Microsoft/TypeScript/issues/2536
	Object.defineProperties(is, {
	    class: {
	        value: is.class_
	    },
	    function: {
	        value: is.function_
	    },
	    null: {
	        value: is.null_
	    }
	});
	Object.defineProperties(exports.assert, {
	    class: {
	        value: exports.assert.class_
	    },
	    function: {
	        value: exports.assert.function_
	    },
	    null: {
	        value: exports.assert.null_
	    }
	});
	exports.default = is;
	// For CommonJS default export support
	module.exports = is;
	module.exports.default = is;
	module.exports.assert = exports.assert;
} (dist, dist.exports));

var asPromise = {};

var pCancelable = {exports: {}};

var hasRequiredPCancelable;

function requirePCancelable () {
	if (hasRequiredPCancelable) return pCancelable.exports;
	hasRequiredPCancelable = 1;

	class CancelError extends Error {
		constructor(reason) {
			super(reason || 'Promise was canceled');
			this.name = 'CancelError';
		}

		get isCanceled() {
			return true;
		}
	}

	class PCancelable {
		static fn(userFn) {
			return (...arguments_) => {
				return new PCancelable((resolve, reject, onCancel) => {
					arguments_.push(onCancel);
					// eslint-disable-next-line promise/prefer-await-to-then
					userFn(...arguments_).then(resolve, reject);
				});
			};
		}

		constructor(executor) {
			this._cancelHandlers = [];
			this._isPending = true;
			this._isCanceled = false;
			this._rejectOnCancel = true;

			this._promise = new Promise((resolve, reject) => {
				this._reject = reject;

				const onResolve = value => {
					if (!this._isCanceled || !onCancel.shouldReject) {
						this._isPending = false;
						resolve(value);
					}
				};

				const onReject = error => {
					this._isPending = false;
					reject(error);
				};

				const onCancel = handler => {
					if (!this._isPending) {
						throw new Error('The `onCancel` handler was attached after the promise settled.');
					}

					this._cancelHandlers.push(handler);
				};

				Object.defineProperties(onCancel, {
					shouldReject: {
						get: () => this._rejectOnCancel,
						set: boolean => {
							this._rejectOnCancel = boolean;
						}
					}
				});

				return executor(onResolve, onReject, onCancel);
			});
		}

		then(onFulfilled, onRejected) {
			// eslint-disable-next-line promise/prefer-await-to-then
			return this._promise.then(onFulfilled, onRejected);
		}

		catch(onRejected) {
			return this._promise.catch(onRejected);
		}

		finally(onFinally) {
			return this._promise.finally(onFinally);
		}

		cancel(reason) {
			if (!this._isPending || this._isCanceled) {
				return;
			}

			this._isCanceled = true;

			if (this._cancelHandlers.length > 0) {
				try {
					for (const handler of this._cancelHandlers) {
						handler();
					}
				} catch (error) {
					this._reject(error);
					return;
				}
			}

			if (this._rejectOnCancel) {
				this._reject(new CancelError(reason));
			}
		}

		get isCanceled() {
			return this._isCanceled;
		}
	}

	Object.setPrototypeOf(PCancelable.prototype, Promise.prototype);

	pCancelable.exports = PCancelable;
	pCancelable.exports.CancelError = CancelError;
	return pCancelable.exports;
}

var types$1 = {};

var core$2 = {};

var source$3 = {exports: {}};

var source$2 = {exports: {}};

(function (module, exports) {
	Object.defineProperty(exports, "__esModule", { value: true });
	function isTLSSocket(socket) {
	    return socket.encrypted;
	}
	const deferToConnect = (socket, fn) => {
	    let listeners;
	    if (typeof fn === 'function') {
	        const connect = fn;
	        listeners = { connect };
	    }
	    else {
	        listeners = fn;
	    }
	    const hasConnectListener = typeof listeners.connect === 'function';
	    const hasSecureConnectListener = typeof listeners.secureConnect === 'function';
	    const hasCloseListener = typeof listeners.close === 'function';
	    const onConnect = () => {
	        if (hasConnectListener) {
	            listeners.connect();
	        }
	        if (isTLSSocket(socket) && hasSecureConnectListener) {
	            if (socket.authorized) {
	                listeners.secureConnect();
	            }
	            else if (!socket.authorizationError) {
	                socket.once('secureConnect', listeners.secureConnect);
	            }
	        }
	        if (hasCloseListener) {
	            socket.once('close', listeners.close);
	        }
	    };
	    if (socket.writable && !socket.connecting) {
	        onConnect();
	    }
	    else if (socket.connecting) {
	        socket.once('connect', onConnect);
	    }
	    else if (socket.destroyed && hasCloseListener) {
	        listeners.close(socket._hadError);
	    }
	};
	exports.default = deferToConnect;
	// For CommonJS default export support
	module.exports = deferToConnect;
	module.exports.default = deferToConnect;
} (source$2, source$2.exports));

(function (module, exports) {
	Object.defineProperty(exports, "__esModule", { value: true });
	const defer_to_connect_1 = source$2.exports;
	const util_1 = require$$1__default["default"];
	const nodejsMajorVersion = Number(process.versions.node.split('.')[0]);
	const timer = (request) => {
	    if (request.timings) {
	        return request.timings;
	    }
	    const timings = {
	        start: Date.now(),
	        socket: undefined,
	        lookup: undefined,
	        connect: undefined,
	        secureConnect: undefined,
	        upload: undefined,
	        response: undefined,
	        end: undefined,
	        error: undefined,
	        abort: undefined,
	        phases: {
	            wait: undefined,
	            dns: undefined,
	            tcp: undefined,
	            tls: undefined,
	            request: undefined,
	            firstByte: undefined,
	            download: undefined,
	            total: undefined
	        }
	    };
	    request.timings = timings;
	    const handleError = (origin) => {
	        const emit = origin.emit.bind(origin);
	        origin.emit = (event, ...args) => {
	            // Catches the `error` event
	            if (event === 'error') {
	                timings.error = Date.now();
	                timings.phases.total = timings.error - timings.start;
	                origin.emit = emit;
	            }
	            // Saves the original behavior
	            return emit(event, ...args);
	        };
	    };
	    handleError(request);
	    const onAbort = () => {
	        timings.abort = Date.now();
	        // Let the `end` response event be responsible for setting the total phase,
	        // unless the Node.js major version is >= 13.
	        if (!timings.response || nodejsMajorVersion >= 13) {
	            timings.phases.total = Date.now() - timings.start;
	        }
	    };
	    request.prependOnceListener('abort', onAbort);
	    const onSocket = (socket) => {
	        timings.socket = Date.now();
	        timings.phases.wait = timings.socket - timings.start;
	        if (util_1.types.isProxy(socket)) {
	            return;
	        }
	        const lookupListener = () => {
	            timings.lookup = Date.now();
	            timings.phases.dns = timings.lookup - timings.socket;
	        };
	        socket.prependOnceListener('lookup', lookupListener);
	        defer_to_connect_1.default(socket, {
	            connect: () => {
	                timings.connect = Date.now();
	                if (timings.lookup === undefined) {
	                    socket.removeListener('lookup', lookupListener);
	                    timings.lookup = timings.connect;
	                    timings.phases.dns = timings.lookup - timings.socket;
	                }
	                timings.phases.tcp = timings.connect - timings.lookup;
	                // This callback is called before flushing any data,
	                // so we don't need to set `timings.phases.request` here.
	            },
	            secureConnect: () => {
	                timings.secureConnect = Date.now();
	                timings.phases.tls = timings.secureConnect - timings.connect;
	            }
	        });
	    };
	    if (request.socket) {
	        onSocket(request.socket);
	    }
	    else {
	        request.prependOnceListener('socket', onSocket);
	    }
	    const onUpload = () => {
	        var _a;
	        timings.upload = Date.now();
	        timings.phases.request = timings.upload - ((_a = timings.secureConnect) !== null && _a !== void 0 ? _a : timings.connect);
	    };
	    const writableFinished = () => {
	        if (typeof request.writableFinished === 'boolean') {
	            return request.writableFinished;
	        }
	        // Node.js doesn't have `request.writableFinished` property
	        return request.finished && request.outputSize === 0 && (!request.socket || request.socket.writableLength === 0);
	    };
	    if (writableFinished()) {
	        onUpload();
	    }
	    else {
	        request.prependOnceListener('finish', onUpload);
	    }
	    request.prependOnceListener('response', (response) => {
	        timings.response = Date.now();
	        timings.phases.firstByte = timings.response - timings.upload;
	        response.timings = timings;
	        handleError(response);
	        response.prependOnceListener('end', () => {
	            timings.end = Date.now();
	            timings.phases.download = timings.end - timings.response;
	            timings.phases.total = timings.end - timings.start;
	        });
	        response.prependOnceListener('aborted', onAbort);
	    });
	    return timings;
	};
	exports.default = timer;
	// For CommonJS default export support
	module.exports = timer;
	module.exports.default = timer;
} (source$3, source$3.exports));

var source$1 = {exports: {}};

const {
	V4MAPPED,
	ADDRCONFIG,
	ALL,
	promises: {
		Resolver: AsyncResolver
	},
	lookup: dnsLookup
} = require$$0__default["default"];
const {promisify: promisify$1} = require$$1__default["default"];
const os$1 = require$$0__default$1["default"];

const kCacheableLookupCreateConnection = Symbol('cacheableLookupCreateConnection');
const kCacheableLookupInstance = Symbol('cacheableLookupInstance');
const kExpires = Symbol('expires');

const supportsALL = typeof ALL === 'number';

const verifyAgent = agent => {
	if (!(agent && typeof agent.createConnection === 'function')) {
		throw new Error('Expected an Agent instance as the first argument');
	}
};

const map4to6 = entries => {
	for (const entry of entries) {
		if (entry.family === 6) {
			continue;
		}

		entry.address = `::ffff:${entry.address}`;
		entry.family = 6;
	}
};

const getIfaceInfo = () => {
	let has4 = false;
	let has6 = false;

	for (const device of Object.values(os$1.networkInterfaces())) {
		for (const iface of device) {
			if (iface.internal) {
				continue;
			}

			if (iface.family === 'IPv6') {
				has6 = true;
			} else {
				has4 = true;
			}

			if (has4 && has6) {
				return {has4, has6};
			}
		}
	}

	return {has4, has6};
};

const isIterable = map => {
	return Symbol.iterator in map;
};

const ttl = {ttl: true};
const all = {all: true};

class CacheableLookup {
	constructor({
		cache = new Map(),
		maxTtl = Infinity,
		fallbackDuration = 3600,
		errorTtl = 0.15,
		resolver = new AsyncResolver(),
		lookup = dnsLookup
	} = {}) {
		this.maxTtl = maxTtl;
		this.errorTtl = errorTtl;

		this._cache = cache;
		this._resolver = resolver;
		this._dnsLookup = promisify$1(lookup);

		if (this._resolver instanceof AsyncResolver) {
			this._resolve4 = this._resolver.resolve4.bind(this._resolver);
			this._resolve6 = this._resolver.resolve6.bind(this._resolver);
		} else {
			this._resolve4 = promisify$1(this._resolver.resolve4.bind(this._resolver));
			this._resolve6 = promisify$1(this._resolver.resolve6.bind(this._resolver));
		}

		this._iface = getIfaceInfo();

		this._pending = {};
		this._nextRemovalTime = false;
		this._hostnamesToFallback = new Set();

		if (fallbackDuration < 1) {
			this._fallback = false;
		} else {
			this._fallback = true;

			const interval = setInterval(() => {
				this._hostnamesToFallback.clear();
			}, fallbackDuration * 1000);

			/* istanbul ignore next: There is no `interval.unref()` when running inside an Electron renderer */
			if (interval.unref) {
				interval.unref();
			}
		}

		this.lookup = this.lookup.bind(this);
		this.lookupAsync = this.lookupAsync.bind(this);
	}

	set servers(servers) {
		this.clear();

		this._resolver.setServers(servers);
	}

	get servers() {
		return this._resolver.getServers();
	}

	lookup(hostname, options, callback) {
		if (typeof options === 'function') {
			callback = options;
			options = {};
		} else if (typeof options === 'number') {
			options = {
				family: options
			};
		}

		if (!callback) {
			throw new Error('Callback must be a function.');
		}

		// eslint-disable-next-line promise/prefer-await-to-then
		this.lookupAsync(hostname, options).then(result => {
			if (options.all) {
				callback(null, result);
			} else {
				callback(null, result.address, result.family, result.expires, result.ttl);
			}
		}, callback);
	}

	async lookupAsync(hostname, options = {}) {
		if (typeof options === 'number') {
			options = {
				family: options
			};
		}

		let cached = await this.query(hostname);

		if (options.family === 6) {
			const filtered = cached.filter(entry => entry.family === 6);

			if (options.hints & V4MAPPED) {
				if ((supportsALL && options.hints & ALL) || filtered.length === 0) {
					map4to6(cached);
				} else {
					cached = filtered;
				}
			} else {
				cached = filtered;
			}
		} else if (options.family === 4) {
			cached = cached.filter(entry => entry.family === 4);
		}

		if (options.hints & ADDRCONFIG) {
			const {_iface} = this;
			cached = cached.filter(entry => entry.family === 6 ? _iface.has6 : _iface.has4);
		}

		if (cached.length === 0) {
			const error = new Error(`cacheableLookup ENOTFOUND ${hostname}`);
			error.code = 'ENOTFOUND';
			error.hostname = hostname;

			throw error;
		}

		if (options.all) {
			return cached;
		}

		return cached[0];
	}

	async query(hostname) {
		let cached = await this._cache.get(hostname);

		if (!cached) {
			const pending = this._pending[hostname];

			if (pending) {
				cached = await pending;
			} else {
				const newPromise = this.queryAndCache(hostname);
				this._pending[hostname] = newPromise;

				try {
					cached = await newPromise;
				} finally {
					delete this._pending[hostname];
				}
			}
		}

		cached = cached.map(entry => {
			return {...entry};
		});

		return cached;
	}

	async _resolve(hostname) {
		const wrap = async promise => {
			try {
				return await promise;
			} catch (error) {
				if (error.code === 'ENODATA' || error.code === 'ENOTFOUND') {
					return [];
				}

				throw error;
			}
		};

		// ANY is unsafe as it doesn't trigger new queries in the underlying server.
		const [A, AAAA] = await Promise.all([
			this._resolve4(hostname, ttl),
			this._resolve6(hostname, ttl)
		].map(promise => wrap(promise)));

		let aTtl = 0;
		let aaaaTtl = 0;
		let cacheTtl = 0;

		const now = Date.now();

		for (const entry of A) {
			entry.family = 4;
			entry.expires = now + (entry.ttl * 1000);

			aTtl = Math.max(aTtl, entry.ttl);
		}

		for (const entry of AAAA) {
			entry.family = 6;
			entry.expires = now + (entry.ttl * 1000);

			aaaaTtl = Math.max(aaaaTtl, entry.ttl);
		}

		if (A.length > 0) {
			if (AAAA.length > 0) {
				cacheTtl = Math.min(aTtl, aaaaTtl);
			} else {
				cacheTtl = aTtl;
			}
		} else {
			cacheTtl = aaaaTtl;
		}

		return {
			entries: [
				...A,
				...AAAA
			],
			cacheTtl
		};
	}

	async _lookup(hostname) {
		try {
			const entries = await this._dnsLookup(hostname, {
				all: true
			});

			return {
				entries,
				cacheTtl: 0
			};
		} catch (_) {
			return {
				entries: [],
				cacheTtl: 0
			};
		}
	}

	async _set(hostname, data, cacheTtl) {
		if (this.maxTtl > 0 && cacheTtl > 0) {
			cacheTtl = Math.min(cacheTtl, this.maxTtl) * 1000;
			data[kExpires] = Date.now() + cacheTtl;

			try {
				await this._cache.set(hostname, data, cacheTtl);
			} catch (error) {
				this.lookupAsync = async () => {
					const cacheError = new Error('Cache Error. Please recreate the CacheableLookup instance.');
					cacheError.cause = error;

					throw cacheError;
				};
			}

			if (isIterable(this._cache)) {
				this._tick(cacheTtl);
			}
		}
	}

	async queryAndCache(hostname) {
		if (this._hostnamesToFallback.has(hostname)) {
			return this._dnsLookup(hostname, all);
		}

		let query = await this._resolve(hostname);

		if (query.entries.length === 0 && this._fallback) {
			query = await this._lookup(hostname);

			if (query.entries.length !== 0) {
				// Use `dns.lookup(...)` for that particular hostname
				this._hostnamesToFallback.add(hostname);
			}
		}

		const cacheTtl = query.entries.length === 0 ? this.errorTtl : query.cacheTtl;
		await this._set(hostname, query.entries, cacheTtl);

		return query.entries;
	}

	_tick(ms) {
		const nextRemovalTime = this._nextRemovalTime;

		if (!nextRemovalTime || ms < nextRemovalTime) {
			clearTimeout(this._removalTimeout);

			this._nextRemovalTime = ms;

			this._removalTimeout = setTimeout(() => {
				this._nextRemovalTime = false;

				let nextExpiry = Infinity;

				const now = Date.now();

				for (const [hostname, entries] of this._cache) {
					const expires = entries[kExpires];

					if (now >= expires) {
						this._cache.delete(hostname);
					} else if (expires < nextExpiry) {
						nextExpiry = expires;
					}
				}

				if (nextExpiry !== Infinity) {
					this._tick(nextExpiry - now);
				}
			}, ms);

			/* istanbul ignore next: There is no `timeout.unref()` when running inside an Electron renderer */
			if (this._removalTimeout.unref) {
				this._removalTimeout.unref();
			}
		}
	}

	install(agent) {
		verifyAgent(agent);

		if (kCacheableLookupCreateConnection in agent) {
			throw new Error('CacheableLookup has been already installed');
		}

		agent[kCacheableLookupCreateConnection] = agent.createConnection;
		agent[kCacheableLookupInstance] = this;

		agent.createConnection = (options, callback) => {
			if (!('lookup' in options)) {
				options.lookup = this.lookup;
			}

			return agent[kCacheableLookupCreateConnection](options, callback);
		};
	}

	uninstall(agent) {
		verifyAgent(agent);

		if (agent[kCacheableLookupCreateConnection]) {
			if (agent[kCacheableLookupInstance] !== this) {
				throw new Error('The agent is not owned by this CacheableLookup instance');
			}

			agent.createConnection = agent[kCacheableLookupCreateConnection];

			delete agent[kCacheableLookupCreateConnection];
			delete agent[kCacheableLookupInstance];
		}
	}

	updateInterfaceInfo() {
		const {_iface} = this;

		this._iface = getIfaceInfo();

		if ((_iface.has4 && !this._iface.has4) || (_iface.has6 && !this._iface.has6)) {
			this._cache.clear();
		}
	}

	clear(hostname) {
		if (hostname) {
			this._cache.delete(hostname);
			return;
		}

		this._cache.clear();
	}
}

source$1.exports = CacheableLookup;
source$1.exports.default = CacheableLookup;

// https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/Data_URIs
const DATA_URL_DEFAULT_MIME_TYPE = 'text/plain';
const DATA_URL_DEFAULT_CHARSET = 'us-ascii';

const testParameter = (name, filters) => {
	return filters.some(filter => filter instanceof RegExp ? filter.test(name) : filter === name);
};

const normalizeDataURL = (urlString, {stripHash}) => {
	const match = /^data:(?<type>[^,]*?),(?<data>[^#]*?)(?:#(?<hash>.*))?$/.exec(urlString);

	if (!match) {
		throw new Error(`Invalid URL: ${urlString}`);
	}

	let {type, data, hash} = match.groups;
	const mediaType = type.split(';');
	hash = stripHash ? '' : hash;

	let isBase64 = false;
	if (mediaType[mediaType.length - 1] === 'base64') {
		mediaType.pop();
		isBase64 = true;
	}

	// Lowercase MIME type
	const mimeType = (mediaType.shift() || '').toLowerCase();
	const attributes = mediaType
		.map(attribute => {
			let [key, value = ''] = attribute.split('=').map(string => string.trim());

			// Lowercase `charset`
			if (key === 'charset') {
				value = value.toLowerCase();

				if (value === DATA_URL_DEFAULT_CHARSET) {
					return '';
				}
			}

			return `${key}${value ? `=${value}` : ''}`;
		})
		.filter(Boolean);

	const normalizedMediaType = [
		...attributes
	];

	if (isBase64) {
		normalizedMediaType.push('base64');
	}

	if (normalizedMediaType.length !== 0 || (mimeType && mimeType !== DATA_URL_DEFAULT_MIME_TYPE)) {
		normalizedMediaType.unshift(mimeType);
	}

	return `data:${normalizedMediaType.join(';')},${isBase64 ? data.trim() : data}${hash ? `#${hash}` : ''}`;
};

const normalizeUrl$1 = (urlString, options) => {
	options = {
		defaultProtocol: 'http:',
		normalizeProtocol: true,
		forceHttp: false,
		forceHttps: false,
		stripAuthentication: true,
		stripHash: false,
		stripTextFragment: true,
		stripWWW: true,
		removeQueryParameters: [/^utm_\w+/i],
		removeTrailingSlash: true,
		removeSingleSlash: true,
		removeDirectoryIndex: false,
		sortQueryParameters: true,
		...options
	};

	urlString = urlString.trim();

	// Data URL
	if (/^data:/i.test(urlString)) {
		return normalizeDataURL(urlString, options);
	}

	if (/^view-source:/i.test(urlString)) {
		throw new Error('`view-source:` is not supported as it is a non-standard protocol');
	}

	const hasRelativeProtocol = urlString.startsWith('//');
	const isRelativeUrl = !hasRelativeProtocol && /^\.*\//.test(urlString);

	// Prepend protocol
	if (!isRelativeUrl) {
		urlString = urlString.replace(/^(?!(?:\w+:)?\/\/)|^\/\//, options.defaultProtocol);
	}

	const urlObj = new URL(urlString);

	if (options.forceHttp && options.forceHttps) {
		throw new Error('The `forceHttp` and `forceHttps` options cannot be used together');
	}

	if (options.forceHttp && urlObj.protocol === 'https:') {
		urlObj.protocol = 'http:';
	}

	if (options.forceHttps && urlObj.protocol === 'http:') {
		urlObj.protocol = 'https:';
	}

	// Remove auth
	if (options.stripAuthentication) {
		urlObj.username = '';
		urlObj.password = '';
	}

	// Remove hash
	if (options.stripHash) {
		urlObj.hash = '';
	} else if (options.stripTextFragment) {
		urlObj.hash = urlObj.hash.replace(/#?:~:text.*?$/i, '');
	}

	// Remove duplicate slashes if not preceded by a protocol
	if (urlObj.pathname) {
		urlObj.pathname = urlObj.pathname.replace(/(?<!\b(?:[a-z][a-z\d+\-.]{1,50}:))\/{2,}/g, '/');
	}

	// Decode URI octets
	if (urlObj.pathname) {
		try {
			urlObj.pathname = decodeURI(urlObj.pathname);
		} catch (_) {}
	}

	// Remove directory index
	if (options.removeDirectoryIndex === true) {
		options.removeDirectoryIndex = [/^index\.[a-z]+$/];
	}

	if (Array.isArray(options.removeDirectoryIndex) && options.removeDirectoryIndex.length > 0) {
		let pathComponents = urlObj.pathname.split('/');
		const lastComponent = pathComponents[pathComponents.length - 1];

		if (testParameter(lastComponent, options.removeDirectoryIndex)) {
			pathComponents = pathComponents.slice(0, pathComponents.length - 1);
			urlObj.pathname = pathComponents.slice(1).join('/') + '/';
		}
	}

	if (urlObj.hostname) {
		// Remove trailing dot
		urlObj.hostname = urlObj.hostname.replace(/\.$/, '');

		// Remove `www.`
		if (options.stripWWW && /^www\.(?!www\.)(?:[a-z\-\d]{1,63})\.(?:[a-z.\-\d]{2,63})$/.test(urlObj.hostname)) {
			// Each label should be max 63 at length (min: 1).
			// Source: https://en.wikipedia.org/wiki/Hostname#Restrictions_on_valid_host_names
			// Each TLD should be up to 63 characters long (min: 2).
			// It is technically possible to have a single character TLD, but none currently exist.
			urlObj.hostname = urlObj.hostname.replace(/^www\./, '');
		}
	}

	// Remove query unwanted parameters
	if (Array.isArray(options.removeQueryParameters)) {
		for (const key of [...urlObj.searchParams.keys()]) {
			if (testParameter(key, options.removeQueryParameters)) {
				urlObj.searchParams.delete(key);
			}
		}
	}

	if (options.removeQueryParameters === true) {
		urlObj.search = '';
	}

	// Sort query parameters
	if (options.sortQueryParameters) {
		urlObj.searchParams.sort();
	}

	if (options.removeTrailingSlash) {
		urlObj.pathname = urlObj.pathname.replace(/\/$/, '');
	}

	const oldUrlString = urlString;

	// Take advantage of many of the Node `url` normalizations
	urlString = urlObj.toString();

	if (!options.removeSingleSlash && urlObj.pathname === '/' && !oldUrlString.endsWith('/') && urlObj.hash === '') {
		urlString = urlString.replace(/\/$/, '');
	}

	// Remove ending `/` unless removeSingleSlash is false
	if ((options.removeTrailingSlash || urlObj.pathname === '/') && urlObj.hash === '' && options.removeSingleSlash) {
		urlString = urlString.replace(/\/$/, '');
	}

	// Restore relative protocol, if applicable
	if (hasRelativeProtocol && !options.normalizeProtocol) {
		urlString = urlString.replace(/^http:\/\//, '//');
	}

	// Remove http/https
	if (options.stripProtocol) {
		urlString = urlString.replace(/^(?:https?:)?\/\//, '');
	}

	return urlString;
};

var normalizeUrl_1 = normalizeUrl$1;

var getStream$7 = {exports: {}};

var once$3 = {exports: {}};

// Returns a wrapper function that returns a wrapped callback
// The wrapper function should do some stuff, and return a
// presumably different callback function.
// This makes sure that own properties are retained, so that
// decorations and such are not lost along the way.
var wrappy_1 = wrappy$1;
function wrappy$1 (fn, cb) {
  if (fn && cb) return wrappy$1(fn)(cb)

  if (typeof fn !== 'function')
    throw new TypeError('need wrapper function')

  Object.keys(fn).forEach(function (k) {
    wrapper[k] = fn[k];
  });

  return wrapper

  function wrapper() {
    var args = new Array(arguments.length);
    for (var i = 0; i < args.length; i++) {
      args[i] = arguments[i];
    }
    var ret = fn.apply(this, args);
    var cb = args[args.length-1];
    if (typeof ret === 'function' && ret !== cb) {
      Object.keys(cb).forEach(function (k) {
        ret[k] = cb[k];
      });
    }
    return ret
  }
}

var wrappy = wrappy_1;
once$3.exports = wrappy(once$2);
once$3.exports.strict = wrappy(onceStrict);

once$2.proto = once$2(function () {
  Object.defineProperty(Function.prototype, 'once', {
    value: function () {
      return once$2(this)
    },
    configurable: true
  });

  Object.defineProperty(Function.prototype, 'onceStrict', {
    value: function () {
      return onceStrict(this)
    },
    configurable: true
  });
});

function once$2 (fn) {
  var f = function () {
    if (f.called) return f.value
    f.called = true;
    return f.value = fn.apply(this, arguments)
  };
  f.called = false;
  return f
}

function onceStrict (fn) {
  var f = function () {
    if (f.called)
      throw new Error(f.onceError)
    f.called = true;
    return f.value = fn.apply(this, arguments)
  };
  var name = fn.name || 'Function wrapped with `once`';
  f.onceError = name + " shouldn't be called more than once";
  f.called = false;
  return f
}

var once$1 = once$3.exports;

var noop$2 = function() {};

var isRequest$1 = function(stream) {
	return stream.setHeader && typeof stream.abort === 'function';
};

var isChildProcess = function(stream) {
	return stream.stdio && Array.isArray(stream.stdio) && stream.stdio.length === 3
};

var eos$1 = function(stream, opts, callback) {
	if (typeof opts === 'function') return eos$1(stream, null, opts);
	if (!opts) opts = {};

	callback = once$1(callback || noop$2);

	var ws = stream._writableState;
	var rs = stream._readableState;
	var readable = opts.readable || (opts.readable !== false && stream.readable);
	var writable = opts.writable || (opts.writable !== false && stream.writable);
	var cancelled = false;

	var onlegacyfinish = function() {
		if (!stream.writable) onfinish();
	};

	var onfinish = function() {
		writable = false;
		if (!readable) callback.call(stream);
	};

	var onend = function() {
		readable = false;
		if (!writable) callback.call(stream);
	};

	var onexit = function(exitCode) {
		callback.call(stream, exitCode ? new Error('exited with error code: ' + exitCode) : null);
	};

	var onerror = function(err) {
		callback.call(stream, err);
	};

	var onclose = function() {
		process.nextTick(onclosenexttick);
	};

	var onclosenexttick = function() {
		if (cancelled) return;
		if (readable && !(rs && (rs.ended && !rs.destroyed))) return callback.call(stream, new Error('premature close'));
		if (writable && !(ws && (ws.ended && !ws.destroyed))) return callback.call(stream, new Error('premature close'));
	};

	var onrequest = function() {
		stream.req.on('finish', onfinish);
	};

	if (isRequest$1(stream)) {
		stream.on('complete', onfinish);
		stream.on('abort', onclose);
		if (stream.req) onrequest();
		else stream.on('request', onrequest);
	} else if (writable && !ws) { // legacy streams
		stream.on('end', onlegacyfinish);
		stream.on('close', onlegacyfinish);
	}

	if (isChildProcess(stream)) stream.on('exit', onexit);

	stream.on('end', onend);
	stream.on('finish', onfinish);
	if (opts.error !== false) stream.on('error', onerror);
	stream.on('close', onclose);

	return function() {
		cancelled = true;
		stream.removeListener('complete', onfinish);
		stream.removeListener('abort', onclose);
		stream.removeListener('request', onrequest);
		if (stream.req) stream.req.removeListener('finish', onfinish);
		stream.removeListener('end', onlegacyfinish);
		stream.removeListener('close', onlegacyfinish);
		stream.removeListener('finish', onfinish);
		stream.removeListener('exit', onexit);
		stream.removeListener('end', onend);
		stream.removeListener('error', onerror);
		stream.removeListener('close', onclose);
	};
};

var endOfStream$1 = eos$1;

var once = once$3.exports;
var eos = endOfStream$1;
var fs$3 = require$$0__default$2["default"]; // we only need fs to get the ReadStream and WriteStream prototypes

var noop$1 = function () {};
var ancient = /^v?\.0/.test(process.version);

var isFn = function (fn) {
  return typeof fn === 'function'
};

var isFS = function (stream) {
  if (!ancient) return false // newer node version do not need to care about fs is a special way
  if (!fs$3) return false // browser
  return (stream instanceof (fs$3.ReadStream || noop$1) || stream instanceof (fs$3.WriteStream || noop$1)) && isFn(stream.close)
};

var isRequest = function (stream) {
  return stream.setHeader && isFn(stream.abort)
};

var destroyer = function (stream, reading, writing, callback) {
  callback = once(callback);

  var closed = false;
  stream.on('close', function () {
    closed = true;
  });

  eos(stream, {readable: reading, writable: writing}, function (err) {
    if (err) return callback(err)
    closed = true;
    callback();
  });

  var destroyed = false;
  return function (err) {
    if (closed) return
    if (destroyed) return
    destroyed = true;

    if (isFS(stream)) return stream.close(noop$1) // use close for fs streams to avoid fd leaks
    if (isRequest(stream)) return stream.abort() // request.destroy just do .end - .abort is what we want

    if (isFn(stream.destroy)) return stream.destroy()

    callback(err || new Error('stream was destroyed'));
  }
};

var call = function (fn) {
  fn();
};

var pipe = function (from, to) {
  return from.pipe(to)
};

var pump$1 = function () {
  var streams = Array.prototype.slice.call(arguments);
  var callback = isFn(streams[streams.length - 1] || noop$1) && streams.pop() || noop$1;

  if (Array.isArray(streams[0])) streams = streams[0];
  if (streams.length < 2) throw new Error('pump requires two streams per minimum')

  var error;
  var destroys = streams.map(function (stream, i) {
    var reading = i < streams.length - 1;
    var writing = i > 0;
    return destroyer(stream, reading, writing, function (err) {
      if (!error) error = err;
      if (err) destroys.forEach(call);
      if (reading) return
      destroys.forEach(call);
      callback(error);
    })
  });

  return streams.reduce(pipe)
};

var pump_1 = pump$1;

const {PassThrough: PassThroughStream$1} = require$$0__default$3["default"];

var bufferStream$5 = options => {
	options = {...options};

	const {array} = options;
	let {encoding} = options;
	const isBuffer = encoding === 'buffer';
	let objectMode = false;

	if (array) {
		objectMode = !(encoding || isBuffer);
	} else {
		encoding = encoding || 'utf8';
	}

	if (isBuffer) {
		encoding = null;
	}

	const stream = new PassThroughStream$1({objectMode});

	if (encoding) {
		stream.setEncoding(encoding);
	}

	let length = 0;
	const chunks = [];

	stream.on('data', chunk => {
		chunks.push(chunk);

		if (objectMode) {
			length = chunks.length;
		} else {
			length += chunk.length;
		}
	});

	stream.getBufferedValue = () => {
		if (array) {
			return chunks;
		}

		return isBuffer ? Buffer.concat(chunks, length) : chunks.join('');
	};

	stream.getBufferedLength = () => length;

	return stream;
};

const {constants: BufferConstants$1} = require$$0__default$4["default"];
const pump = pump_1;
const bufferStream$4 = bufferStream$5;

class MaxBufferError$1 extends Error {
	constructor() {
		super('maxBuffer exceeded');
		this.name = 'MaxBufferError';
	}
}

async function getStream$6(inputStream, options) {
	if (!inputStream) {
		return Promise.reject(new Error('Expected a stream'));
	}

	options = {
		maxBuffer: Infinity,
		...options
	};

	const {maxBuffer} = options;

	let stream;
	await new Promise((resolve, reject) => {
		const rejectPromise = error => {
			// Don't retrieve an oversized buffer.
			if (error && stream.getBufferedLength() <= BufferConstants$1.MAX_LENGTH) {
				error.bufferedData = stream.getBufferedValue();
			}

			reject(error);
		};

		stream = pump(inputStream, bufferStream$4(options), error => {
			if (error) {
				rejectPromise(error);
				return;
			}

			resolve();
		});

		stream.on('data', () => {
			if (stream.getBufferedLength() > maxBuffer) {
				rejectPromise(new MaxBufferError$1());
			}
		});
	});

	return stream.getBufferedValue();
}

getStream$7.exports = getStream$6;
// TODO: Remove this for the next major release
getStream$7.exports.default = getStream$6;
getStream$7.exports.buffer = (stream, options) => getStream$6(stream, {...options, encoding: 'buffer'});
getStream$7.exports.array = (stream, options) => getStream$6(stream, {...options, array: true});
getStream$7.exports.MaxBufferError = MaxBufferError$1;

// rfc7231 6.1
const statusCodeCacheableByDefault = new Set([
    200,
    203,
    204,
    206,
    300,
    301,
    404,
    405,
    410,
    414,
    501,
]);

// This implementation does not understand partial responses (206)
const understoodStatuses = new Set([
    200,
    203,
    204,
    300,
    301,
    302,
    303,
    307,
    308,
    404,
    405,
    410,
    414,
    501,
]);

const errorStatusCodes = new Set([
    500,
    502,
    503, 
    504,
]);

const hopByHopHeaders = {
    date: true, // included, because we add Age update Date
    connection: true,
    'keep-alive': true,
    'proxy-authenticate': true,
    'proxy-authorization': true,
    te: true,
    trailer: true,
    'transfer-encoding': true,
    upgrade: true,
};

const excludedFromRevalidationUpdate = {
    // Since the old body is reused, it doesn't make sense to change properties of the body
    'content-length': true,
    'content-encoding': true,
    'transfer-encoding': true,
    'content-range': true,
};

function toNumberOrZero(s) {
    const n = parseInt(s, 10);
    return isFinite(n) ? n : 0;
}

// RFC 5861
function isErrorResponse(response) {
    // consider undefined response as faulty
    if(!response) {
        return true
    }
    return errorStatusCodes.has(response.status);
}

function parseCacheControl(header) {
    const cc = {};
    if (!header) return cc;

    // TODO: When there is more than one value present for a given directive (e.g., two Expires header fields, multiple Cache-Control: max-age directives),
    // the directive's value is considered invalid. Caches are encouraged to consider responses that have invalid freshness information to be stale
    const parts = header.trim().split(/\s*,\s*/); // TODO: lame parsing
    for (const part of parts) {
        const [k, v] = part.split(/\s*=\s*/, 2);
        cc[k] = v === undefined ? true : v.replace(/^"|"$/g, ''); // TODO: lame unquoting
    }

    return cc;
}

function formatCacheControl(cc) {
    let parts = [];
    for (const k in cc) {
        const v = cc[k];
        parts.push(v === true ? k : k + '=' + v);
    }
    if (!parts.length) {
        return undefined;
    }
    return parts.join(', ');
}

var httpCacheSemantics = class CachePolicy {
    constructor(
        req,
        res,
        {
            shared,
            cacheHeuristic,
            immutableMinTimeToLive,
            ignoreCargoCult,
            _fromObject,
        } = {}
    ) {
        if (_fromObject) {
            this._fromObject(_fromObject);
            return;
        }

        if (!res || !res.headers) {
            throw Error('Response headers missing');
        }
        this._assertRequestHasHeaders(req);

        this._responseTime = this.now();
        this._isShared = shared !== false;
        this._cacheHeuristic =
            undefined !== cacheHeuristic ? cacheHeuristic : 0.1; // 10% matches IE
        this._immutableMinTtl =
            undefined !== immutableMinTimeToLive
                ? immutableMinTimeToLive
                : 24 * 3600 * 1000;

        this._status = 'status' in res ? res.status : 200;
        this._resHeaders = res.headers;
        this._rescc = parseCacheControl(res.headers['cache-control']);
        this._method = 'method' in req ? req.method : 'GET';
        this._url = req.url;
        this._host = req.headers.host;
        this._noAuthorization = !req.headers.authorization;
        this._reqHeaders = res.headers.vary ? req.headers : null; // Don't keep all request headers if they won't be used
        this._reqcc = parseCacheControl(req.headers['cache-control']);

        // Assume that if someone uses legacy, non-standard uncecessary options they don't understand caching,
        // so there's no point stricly adhering to the blindly copy&pasted directives.
        if (
            ignoreCargoCult &&
            'pre-check' in this._rescc &&
            'post-check' in this._rescc
        ) {
            delete this._rescc['pre-check'];
            delete this._rescc['post-check'];
            delete this._rescc['no-cache'];
            delete this._rescc['no-store'];
            delete this._rescc['must-revalidate'];
            this._resHeaders = Object.assign({}, this._resHeaders, {
                'cache-control': formatCacheControl(this._rescc),
            });
            delete this._resHeaders.expires;
            delete this._resHeaders.pragma;
        }

        // When the Cache-Control header field is not present in a request, caches MUST consider the no-cache request pragma-directive
        // as having the same effect as if "Cache-Control: no-cache" were present (see Section 5.2.1).
        if (
            res.headers['cache-control'] == null &&
            /no-cache/.test(res.headers.pragma)
        ) {
            this._rescc['no-cache'] = true;
        }
    }

    now() {
        return Date.now();
    }

    storable() {
        // The "no-store" request directive indicates that a cache MUST NOT store any part of either this request or any response to it.
        return !!(
            !this._reqcc['no-store'] &&
            // A cache MUST NOT store a response to any request, unless:
            // The request method is understood by the cache and defined as being cacheable, and
            ('GET' === this._method ||
                'HEAD' === this._method ||
                ('POST' === this._method && this._hasExplicitExpiration())) &&
            // the response status code is understood by the cache, and
            understoodStatuses.has(this._status) &&
            // the "no-store" cache directive does not appear in request or response header fields, and
            !this._rescc['no-store'] &&
            // the "private" response directive does not appear in the response, if the cache is shared, and
            (!this._isShared || !this._rescc.private) &&
            // the Authorization header field does not appear in the request, if the cache is shared,
            (!this._isShared ||
                this._noAuthorization ||
                this._allowsStoringAuthenticated()) &&
            // the response either:
            // contains an Expires header field, or
            (this._resHeaders.expires ||
                // contains a max-age response directive, or
                // contains a s-maxage response directive and the cache is shared, or
                // contains a public response directive.
                this._rescc['max-age'] ||
                (this._isShared && this._rescc['s-maxage']) ||
                this._rescc.public ||
                // has a status code that is defined as cacheable by default
                statusCodeCacheableByDefault.has(this._status))
        );
    }

    _hasExplicitExpiration() {
        // 4.2.1 Calculating Freshness Lifetime
        return (
            (this._isShared && this._rescc['s-maxage']) ||
            this._rescc['max-age'] ||
            this._resHeaders.expires
        );
    }

    _assertRequestHasHeaders(req) {
        if (!req || !req.headers) {
            throw Error('Request headers missing');
        }
    }

    satisfiesWithoutRevalidation(req) {
        this._assertRequestHasHeaders(req);

        // When presented with a request, a cache MUST NOT reuse a stored response, unless:
        // the presented request does not contain the no-cache pragma (Section 5.4), nor the no-cache cache directive,
        // unless the stored response is successfully validated (Section 4.3), and
        const requestCC = parseCacheControl(req.headers['cache-control']);
        if (requestCC['no-cache'] || /no-cache/.test(req.headers.pragma)) {
            return false;
        }

        if (requestCC['max-age'] && this.age() > requestCC['max-age']) {
            return false;
        }

        if (
            requestCC['min-fresh'] &&
            this.timeToLive() < 1000 * requestCC['min-fresh']
        ) {
            return false;
        }

        // the stored response is either:
        // fresh, or allowed to be served stale
        if (this.stale()) {
            const allowsStale =
                requestCC['max-stale'] &&
                !this._rescc['must-revalidate'] &&
                (true === requestCC['max-stale'] ||
                    requestCC['max-stale'] > this.age() - this.maxAge());
            if (!allowsStale) {
                return false;
            }
        }

        return this._requestMatches(req, false);
    }

    _requestMatches(req, allowHeadMethod) {
        // The presented effective request URI and that of the stored response match, and
        return (
            (!this._url || this._url === req.url) &&
            this._host === req.headers.host &&
            // the request method associated with the stored response allows it to be used for the presented request, and
            (!req.method ||
                this._method === req.method ||
                (allowHeadMethod && 'HEAD' === req.method)) &&
            // selecting header fields nominated by the stored response (if any) match those presented, and
            this._varyMatches(req)
        );
    }

    _allowsStoringAuthenticated() {
        //  following Cache-Control response directives (Section 5.2.2) have such an effect: must-revalidate, public, and s-maxage.
        return (
            this._rescc['must-revalidate'] ||
            this._rescc.public ||
            this._rescc['s-maxage']
        );
    }

    _varyMatches(req) {
        if (!this._resHeaders.vary) {
            return true;
        }

        // A Vary header field-value of "*" always fails to match
        if (this._resHeaders.vary === '*') {
            return false;
        }

        const fields = this._resHeaders.vary
            .trim()
            .toLowerCase()
            .split(/\s*,\s*/);
        for (const name of fields) {
            if (req.headers[name] !== this._reqHeaders[name]) return false;
        }
        return true;
    }

    _copyWithoutHopByHopHeaders(inHeaders) {
        const headers = {};
        for (const name in inHeaders) {
            if (hopByHopHeaders[name]) continue;
            headers[name] = inHeaders[name];
        }
        // 9.1.  Connection
        if (inHeaders.connection) {
            const tokens = inHeaders.connection.trim().split(/\s*,\s*/);
            for (const name of tokens) {
                delete headers[name];
            }
        }
        if (headers.warning) {
            const warnings = headers.warning.split(/,/).filter(warning => {
                return !/^\s*1[0-9][0-9]/.test(warning);
            });
            if (!warnings.length) {
                delete headers.warning;
            } else {
                headers.warning = warnings.join(',').trim();
            }
        }
        return headers;
    }

    responseHeaders() {
        const headers = this._copyWithoutHopByHopHeaders(this._resHeaders);
        const age = this.age();

        // A cache SHOULD generate 113 warning if it heuristically chose a freshness
        // lifetime greater than 24 hours and the response's age is greater than 24 hours.
        if (
            age > 3600 * 24 &&
            !this._hasExplicitExpiration() &&
            this.maxAge() > 3600 * 24
        ) {
            headers.warning =
                (headers.warning ? `${headers.warning}, ` : '') +
                '113 - "rfc7234 5.5.4"';
        }
        headers.age = `${Math.round(age)}`;
        headers.date = new Date(this.now()).toUTCString();
        return headers;
    }

    /**
     * Value of the Date response header or current time if Date was invalid
     * @return timestamp
     */
    date() {
        const serverDate = Date.parse(this._resHeaders.date);
        if (isFinite(serverDate)) {
            return serverDate;
        }
        return this._responseTime;
    }

    /**
     * Value of the Age header, in seconds, updated for the current time.
     * May be fractional.
     *
     * @return Number
     */
    age() {
        let age = this._ageValue();

        const residentTime = (this.now() - this._responseTime) / 1000;
        return age + residentTime;
    }

    _ageValue() {
        return toNumberOrZero(this._resHeaders.age);
    }

    /**
     * Value of applicable max-age (or heuristic equivalent) in seconds. This counts since response's `Date`.
     *
     * For an up-to-date value, see `timeToLive()`.
     *
     * @return Number
     */
    maxAge() {
        if (!this.storable() || this._rescc['no-cache']) {
            return 0;
        }

        // Shared responses with cookies are cacheable according to the RFC, but IMHO it'd be unwise to do so by default
        // so this implementation requires explicit opt-in via public header
        if (
            this._isShared &&
            (this._resHeaders['set-cookie'] &&
                !this._rescc.public &&
                !this._rescc.immutable)
        ) {
            return 0;
        }

        if (this._resHeaders.vary === '*') {
            return 0;
        }

        if (this._isShared) {
            if (this._rescc['proxy-revalidate']) {
                return 0;
            }
            // if a response includes the s-maxage directive, a shared cache recipient MUST ignore the Expires field.
            if (this._rescc['s-maxage']) {
                return toNumberOrZero(this._rescc['s-maxage']);
            }
        }

        // If a response includes a Cache-Control field with the max-age directive, a recipient MUST ignore the Expires field.
        if (this._rescc['max-age']) {
            return toNumberOrZero(this._rescc['max-age']);
        }

        const defaultMinTtl = this._rescc.immutable ? this._immutableMinTtl : 0;

        const serverDate = this.date();
        if (this._resHeaders.expires) {
            const expires = Date.parse(this._resHeaders.expires);
            // A cache recipient MUST interpret invalid date formats, especially the value "0", as representing a time in the past (i.e., "already expired").
            if (Number.isNaN(expires) || expires < serverDate) {
                return 0;
            }
            return Math.max(defaultMinTtl, (expires - serverDate) / 1000);
        }

        if (this._resHeaders['last-modified']) {
            const lastModified = Date.parse(this._resHeaders['last-modified']);
            if (isFinite(lastModified) && serverDate > lastModified) {
                return Math.max(
                    defaultMinTtl,
                    ((serverDate - lastModified) / 1000) * this._cacheHeuristic
                );
            }
        }

        return defaultMinTtl;
    }

    timeToLive() {
        const age = this.maxAge() - this.age();
        const staleIfErrorAge = age + toNumberOrZero(this._rescc['stale-if-error']);
        const staleWhileRevalidateAge = age + toNumberOrZero(this._rescc['stale-while-revalidate']);
        return Math.max(0, age, staleIfErrorAge, staleWhileRevalidateAge) * 1000;
    }

    stale() {
        return this.maxAge() <= this.age();
    }

    _useStaleIfError() {
        return this.maxAge() + toNumberOrZero(this._rescc['stale-if-error']) > this.age();
    }

    useStaleWhileRevalidate() {
        return this.maxAge() + toNumberOrZero(this._rescc['stale-while-revalidate']) > this.age();
    }

    static fromObject(obj) {
        return new this(undefined, undefined, { _fromObject: obj });
    }

    _fromObject(obj) {
        if (this._responseTime) throw Error('Reinitialized');
        if (!obj || obj.v !== 1) throw Error('Invalid serialization');

        this._responseTime = obj.t;
        this._isShared = obj.sh;
        this._cacheHeuristic = obj.ch;
        this._immutableMinTtl =
            obj.imm !== undefined ? obj.imm : 24 * 3600 * 1000;
        this._status = obj.st;
        this._resHeaders = obj.resh;
        this._rescc = obj.rescc;
        this._method = obj.m;
        this._url = obj.u;
        this._host = obj.h;
        this._noAuthorization = obj.a;
        this._reqHeaders = obj.reqh;
        this._reqcc = obj.reqcc;
    }

    toObject() {
        return {
            v: 1,
            t: this._responseTime,
            sh: this._isShared,
            ch: this._cacheHeuristic,
            imm: this._immutableMinTtl,
            st: this._status,
            resh: this._resHeaders,
            rescc: this._rescc,
            m: this._method,
            u: this._url,
            h: this._host,
            a: this._noAuthorization,
            reqh: this._reqHeaders,
            reqcc: this._reqcc,
        };
    }

    /**
     * Headers for sending to the origin server to revalidate stale response.
     * Allows server to return 304 to allow reuse of the previous response.
     *
     * Hop by hop headers are always stripped.
     * Revalidation headers may be added or removed, depending on request.
     */
    revalidationHeaders(incomingReq) {
        this._assertRequestHasHeaders(incomingReq);
        const headers = this._copyWithoutHopByHopHeaders(incomingReq.headers);

        // This implementation does not understand range requests
        delete headers['if-range'];

        if (!this._requestMatches(incomingReq, true) || !this.storable()) {
            // revalidation allowed via HEAD
            // not for the same resource, or wasn't allowed to be cached anyway
            delete headers['if-none-match'];
            delete headers['if-modified-since'];
            return headers;
        }

        /* MUST send that entity-tag in any cache validation request (using If-Match or If-None-Match) if an entity-tag has been provided by the origin server. */
        if (this._resHeaders.etag) {
            headers['if-none-match'] = headers['if-none-match']
                ? `${headers['if-none-match']}, ${this._resHeaders.etag}`
                : this._resHeaders.etag;
        }

        // Clients MAY issue simple (non-subrange) GET requests with either weak validators or strong validators. Clients MUST NOT use weak validators in other forms of request.
        const forbidsWeakValidators =
            headers['accept-ranges'] ||
            headers['if-match'] ||
            headers['if-unmodified-since'] ||
            (this._method && this._method != 'GET');

        /* SHOULD send the Last-Modified value in non-subrange cache validation requests (using If-Modified-Since) if only a Last-Modified value has been provided by the origin server.
        Note: This implementation does not understand partial responses (206) */
        if (forbidsWeakValidators) {
            delete headers['if-modified-since'];

            if (headers['if-none-match']) {
                const etags = headers['if-none-match']
                    .split(/,/)
                    .filter(etag => {
                        return !/^\s*W\//.test(etag);
                    });
                if (!etags.length) {
                    delete headers['if-none-match'];
                } else {
                    headers['if-none-match'] = etags.join(',').trim();
                }
            }
        } else if (
            this._resHeaders['last-modified'] &&
            !headers['if-modified-since']
        ) {
            headers['if-modified-since'] = this._resHeaders['last-modified'];
        }

        return headers;
    }

    /**
     * Creates new CachePolicy with information combined from the previews response,
     * and the new revalidation response.
     *
     * Returns {policy, modified} where modified is a boolean indicating
     * whether the response body has been modified, and old cached body can't be used.
     *
     * @return {Object} {policy: CachePolicy, modified: Boolean}
     */
    revalidatedPolicy(request, response) {
        this._assertRequestHasHeaders(request);
        if(this._useStaleIfError() && isErrorResponse(response)) {  // I consider the revalidation request unsuccessful
          return {
            modified: false,
            matches: false,
            policy: this,
          };
        }
        if (!response || !response.headers) {
            throw Error('Response headers missing');
        }

        // These aren't going to be supported exactly, since one CachePolicy object
        // doesn't know about all the other cached objects.
        let matches = false;
        if (response.status !== undefined && response.status != 304) {
            matches = false;
        } else if (
            response.headers.etag &&
            !/^\s*W\//.test(response.headers.etag)
        ) {
            // "All of the stored responses with the same strong validator are selected.
            // If none of the stored responses contain the same strong validator,
            // then the cache MUST NOT use the new response to update any stored responses."
            matches =
                this._resHeaders.etag &&
                this._resHeaders.etag.replace(/^\s*W\//, '') ===
                    response.headers.etag;
        } else if (this._resHeaders.etag && response.headers.etag) {
            // "If the new response contains a weak validator and that validator corresponds
            // to one of the cache's stored responses,
            // then the most recent of those matching stored responses is selected for update."
            matches =
                this._resHeaders.etag.replace(/^\s*W\//, '') ===
                response.headers.etag.replace(/^\s*W\//, '');
        } else if (this._resHeaders['last-modified']) {
            matches =
                this._resHeaders['last-modified'] ===
                response.headers['last-modified'];
        } else {
            // If the new response does not include any form of validator (such as in the case where
            // a client generates an If-Modified-Since request from a source other than the Last-Modified
            // response header field), and there is only one stored response, and that stored response also
            // lacks a validator, then that stored response is selected for update.
            if (
                !this._resHeaders.etag &&
                !this._resHeaders['last-modified'] &&
                !response.headers.etag &&
                !response.headers['last-modified']
            ) {
                matches = true;
            }
        }

        if (!matches) {
            return {
                policy: new this.constructor(request, response),
                // Client receiving 304 without body, even if it's invalid/mismatched has no option
                // but to reuse a cached body. We don't have a good way to tell clients to do
                // error recovery in such case.
                modified: response.status != 304,
                matches: false,
            };
        }

        // use other header fields provided in the 304 (Not Modified) response to replace all instances
        // of the corresponding header fields in the stored response.
        const headers = {};
        for (const k in this._resHeaders) {
            headers[k] =
                k in response.headers && !excludedFromRevalidationUpdate[k]
                    ? response.headers[k]
                    : this._resHeaders[k];
        }

        const newResponse = Object.assign({}, response, {
            status: this._status,
            method: this._method,
            headers,
        });
        return {
            policy: new this.constructor(request, newResponse, {
                shared: this._isShared,
                cacheHeuristic: this._cacheHeuristic,
                immutableMinTimeToLive: this._immutableMinTtl,
            }),
            modified: false,
            matches: true,
        };
    }
};

var lowercaseKeys$2 = object => {
	const result = {};

	for (const [key, value] of Object.entries(object)) {
		result[key.toLowerCase()] = value;
	}

	return result;
};

const Readable$1 = require$$0__default$3["default"].Readable;
const lowercaseKeys$1 = lowercaseKeys$2;

class Response$1 extends Readable$1 {
	constructor(statusCode, headers, body, url) {
		if (typeof statusCode !== 'number') {
			throw new TypeError('Argument `statusCode` should be a number');
		}
		if (typeof headers !== 'object') {
			throw new TypeError('Argument `headers` should be an object');
		}
		if (!(body instanceof Buffer)) {
			throw new TypeError('Argument `body` should be a buffer');
		}
		if (typeof url !== 'string') {
			throw new TypeError('Argument `url` should be a string');
		}

		super();
		this.statusCode = statusCode;
		this.headers = lowercaseKeys$1(headers);
		this.body = body;
		this.url = url;
	}

	_read() {
		this.push(this.body);
		this.push(null);
	}
}

var src$3 = Response$1;

// We define these manually to ensure they're always copied
// even if they would move up the prototype chain
// https://nodejs.org/api/http.html#http_class_http_incomingmessage
const knownProps = [
	'destroy',
	'setTimeout',
	'socket',
	'headers',
	'trailers',
	'rawHeaders',
	'statusCode',
	'httpVersion',
	'httpVersionMinor',
	'httpVersionMajor',
	'rawTrailers',
	'statusMessage'
];

var mimicResponse$3 = (fromStream, toStream) => {
	const fromProps = new Set(Object.keys(fromStream).concat(knownProps));

	for (const prop of fromProps) {
		// Don't overwrite existing properties
		if (prop in toStream) {
			continue;
		}

		toStream[prop] = typeof fromStream[prop] === 'function' ? fromStream[prop].bind(fromStream) : fromStream[prop];
	}
};

const PassThrough$3 = require$$0__default$3["default"].PassThrough;
const mimicResponse$2 = mimicResponse$3;

const cloneResponse$1 = response => {
	if (!(response && response.pipe)) {
		throw new TypeError('Parameter `response` must be a response stream.');
	}

	const clone = new PassThrough$3();
	mimicResponse$2(response, clone);

	return response.pipe(clone);
};

var src$2 = cloneResponse$1;

function commonjsRequire(path) {
	throw new Error('Could not dynamically require "' + path + '". Please configure the dynamicRequireTargets or/and ignoreDynamicRequires option of @rollup/plugin-commonjs appropriately for this require call to work.');
}

var jsonBuffer = {};

//TODO: handle reviver/dehydrate function like normal
//and handle indentation, like normal.
//if anyone needs this... please send pull request.

jsonBuffer.stringify = function stringify (o) {
  if('undefined' == typeof o) return o

  if(o && Buffer.isBuffer(o))
    return JSON.stringify(':base64:' + o.toString('base64'))

  if(o && o.toJSON)
    o =  o.toJSON();

  if(o && 'object' === typeof o) {
    var s = '';
    var array = Array.isArray(o);
    s = array ? '[' : '{';
    var first = true;

    for(var k in o) {
      var ignore = 'function' == typeof o[k] || (!array && 'undefined' === typeof o[k]);
      if(Object.hasOwnProperty.call(o, k) && !ignore) {
        if(!first)
          s += ',';
        first = false;
        if (array) {
          if(o[k] == undefined)
            s += 'null';
          else
            s += stringify(o[k]);
        } else if (o[k] !== void(0)) {
          s += stringify(k) + ':' + stringify(o[k]);
        }
      }
    }

    s += array ? ']' : '}';

    return s
  } else if ('string' === typeof o) {
    return JSON.stringify(/^:/.test(o) ? ':' + o : o)
  } else if ('undefined' === typeof o) {
    return 'null';
  } else
    return JSON.stringify(o)
};

jsonBuffer.parse = function (s) {
  return JSON.parse(s, function (key, value) {
    if('string' === typeof value) {
      if(/^:base64:/.test(value))
        return Buffer.from(value.substring(8), 'base64')
      else
        return /^:/.test(value) ? value.substring(1) : value 
    }
    return value
  })
};

const EventEmitter$2 = require$$0__default$5["default"];
const JSONB = jsonBuffer;

// eslint-disable-next-line no-extend-native
BigInt.prototype.toJSON = function () {
	return this.toString();
};

const loadStore = options => {
	const adapters = {
		redis: '@keyv/redis',
		mongodb: '@keyv/mongo',
		mongo: '@keyv/mongo',
		sqlite: '@keyv/sqlite',
		postgresql: '@keyv/postgres',
		postgres: '@keyv/postgres',
		mysql: '@keyv/mysql',
		etcd: '@keyv/etcd',
	};
	if (options.adapter || options.uri) {
		const adapter = options.adapter || /^[^:]*/.exec(options.uri)[0];
		return new (commonjsRequire(adapters[adapter]))(options);
	}

	return new Map();
};

class Keyv$1 extends EventEmitter$2 {
	constructor(uri, options) {
		super();
		this.opts = Object.assign(
			{
				namespace: 'keyv',
				serialize: JSONB.stringify,
				deserialize: JSONB.parse,
			},
			(typeof uri === 'string') ? { uri } : uri,
			options,
		);

		if (!this.opts.store) {
			const adapterOptions = Object.assign({}, this.opts);
			this.opts.store = loadStore(adapterOptions);
		}

		if (typeof this.opts.store.on === 'function') {
			this.opts.store.on('error', error => this.emit('error', error));
		}

		this.opts.store.namespace = this.opts.namespace;
	}

	_getKeyPrefix(key) {
		return `${this.opts.namespace}:${key}`;
	}

	get(key, options) {
		const keyPrefixed = this._getKeyPrefix(key);
		const { store } = this.opts;
		return Promise.resolve()
			.then(() => store.get(keyPrefixed))
			.then(data => (typeof data === 'string') ? this.opts.deserialize(data) : data)
			.then(data => {
				if (data === undefined || data === null) {
					return undefined;
				}

				if (typeof data.expires === 'number' && Date.now() > data.expires) {
					this.delete(key);
					return undefined;
				}

				return (options && options.raw) ? data : data.value;
			});
	}

	set(key, value, ttl) {
		const keyPrefixed = this._getKeyPrefix(key);
		if (typeof ttl === 'undefined') {
			ttl = this.opts.ttl;
		}

		if (ttl === 0) {
			ttl = undefined;
		}

		const { store } = this.opts;

		return Promise.resolve()
			.then(() => {
				const expires = (typeof ttl === 'number') ? (Date.now() + ttl) : null;
				if (typeof value === 'symbol') {
					this.emit('error', 'symbol cannot be serialized');
				}

				value = { value, expires };
				return this.opts.serialize(value);
			})
			.then(value => store.set(keyPrefixed, value, ttl))
			.then(() => true);
	}

	delete(key) {
		const keyPrefixed = this._getKeyPrefix(key);
		const { store } = this.opts;
		return Promise.resolve()
			.then(() => store.delete(keyPrefixed));
	}

	clear() {
		const { store } = this.opts;
		return Promise.resolve()
			.then(() => store.clear());
	}
}

var src$1 = Keyv$1;

const EventEmitter$1 = require$$0__default$5["default"];
const urlLib = require$$0__default$6["default"];
const normalizeUrl = normalizeUrl_1;
const getStream$5 = getStream$7.exports;
const CachePolicy = httpCacheSemantics;
const Response = src$3;
const lowercaseKeys = lowercaseKeys$2;
const cloneResponse = src$2;
const Keyv = src$1;

class CacheableRequest {
	constructor(request, cacheAdapter) {
		if (typeof request !== 'function') {
			throw new TypeError('Parameter `request` must be a function');
		}

		this.cache = new Keyv({
			uri: typeof cacheAdapter === 'string' && cacheAdapter,
			store: typeof cacheAdapter !== 'string' && cacheAdapter,
			namespace: 'cacheable-request'
		});

		return this.createCacheableRequest(request);
	}

	createCacheableRequest(request) {
		return (opts, cb) => {
			let url;
			if (typeof opts === 'string') {
				url = normalizeUrlObject(urlLib.parse(opts));
				opts = {};
			} else if (opts instanceof urlLib.URL) {
				url = normalizeUrlObject(urlLib.parse(opts.toString()));
				opts = {};
			} else {
				const [pathname, ...searchParts] = (opts.path || '').split('?');
				const search = searchParts.length > 0 ?
					`?${searchParts.join('?')}` :
					'';
				url = normalizeUrlObject({ ...opts, pathname, search });
			}

			opts = {
				headers: {},
				method: 'GET',
				cache: true,
				strictTtl: false,
				automaticFailover: false,
				...opts,
				...urlObjectToRequestOptions(url)
			};
			opts.headers = lowercaseKeys(opts.headers);

			const ee = new EventEmitter$1();
			const normalizedUrlString = normalizeUrl(
				urlLib.format(url),
				{
					stripWWW: false,
					removeTrailingSlash: false,
					stripAuthentication: false
				}
			);
			const key = `${opts.method}:${normalizedUrlString}`;
			let revalidate = false;
			let madeRequest = false;

			const makeRequest = opts => {
				madeRequest = true;
				let requestErrored = false;
				let requestErrorCallback;

				const requestErrorPromise = new Promise(resolve => {
					requestErrorCallback = () => {
						if (!requestErrored) {
							requestErrored = true;
							resolve();
						}
					};
				});

				const handler = response => {
					if (revalidate && !opts.forceRefresh) {
						response.status = response.statusCode;
						const revalidatedPolicy = CachePolicy.fromObject(revalidate.cachePolicy).revalidatedPolicy(opts, response);
						if (!revalidatedPolicy.modified) {
							const headers = revalidatedPolicy.policy.responseHeaders();
							response = new Response(revalidate.statusCode, headers, revalidate.body, revalidate.url);
							response.cachePolicy = revalidatedPolicy.policy;
							response.fromCache = true;
						}
					}

					if (!response.fromCache) {
						response.cachePolicy = new CachePolicy(opts, response, opts);
						response.fromCache = false;
					}

					let clonedResponse;
					if (opts.cache && response.cachePolicy.storable()) {
						clonedResponse = cloneResponse(response);

						(async () => {
							try {
								const bodyPromise = getStream$5.buffer(response);

								await Promise.race([
									requestErrorPromise,
									new Promise(resolve => response.once('end', resolve))
								]);

								if (requestErrored) {
									return;
								}

								const body = await bodyPromise;

								const value = {
									cachePolicy: response.cachePolicy.toObject(),
									url: response.url,
									statusCode: response.fromCache ? revalidate.statusCode : response.statusCode,
									body
								};

								let ttl = opts.strictTtl ? response.cachePolicy.timeToLive() : undefined;
								if (opts.maxTtl) {
									ttl = ttl ? Math.min(ttl, opts.maxTtl) : opts.maxTtl;
								}

								await this.cache.set(key, value, ttl);
							} catch (error) {
								ee.emit('error', new CacheableRequest.CacheError(error));
							}
						})();
					} else if (opts.cache && revalidate) {
						(async () => {
							try {
								await this.cache.delete(key);
							} catch (error) {
								ee.emit('error', new CacheableRequest.CacheError(error));
							}
						})();
					}

					ee.emit('response', clonedResponse || response);
					if (typeof cb === 'function') {
						cb(clonedResponse || response);
					}
				};

				try {
					const req = request(opts, handler);
					req.once('error', requestErrorCallback);
					req.once('abort', requestErrorCallback);
					ee.emit('request', req);
				} catch (error) {
					ee.emit('error', new CacheableRequest.RequestError(error));
				}
			};

			(async () => {
				const get = async opts => {
					await Promise.resolve();

					const cacheEntry = opts.cache ? await this.cache.get(key) : undefined;
					if (typeof cacheEntry === 'undefined') {
						return makeRequest(opts);
					}

					const policy = CachePolicy.fromObject(cacheEntry.cachePolicy);
					if (policy.satisfiesWithoutRevalidation(opts) && !opts.forceRefresh) {
						const headers = policy.responseHeaders();
						const response = new Response(cacheEntry.statusCode, headers, cacheEntry.body, cacheEntry.url);
						response.cachePolicy = policy;
						response.fromCache = true;

						ee.emit('response', response);
						if (typeof cb === 'function') {
							cb(response);
						}
					} else {
						revalidate = cacheEntry;
						opts.headers = policy.revalidationHeaders(opts);
						makeRequest(opts);
					}
				};

				const errorHandler = error => ee.emit('error', new CacheableRequest.CacheError(error));
				this.cache.once('error', errorHandler);
				ee.on('response', () => this.cache.removeListener('error', errorHandler));

				try {
					await get(opts);
				} catch (error) {
					if (opts.automaticFailover && !madeRequest) {
						makeRequest(opts);
					}

					ee.emit('error', new CacheableRequest.CacheError(error));
				}
			})();

			return ee;
		};
	}
}

function urlObjectToRequestOptions(url) {
	const options = { ...url };
	options.path = `${url.pathname || '/'}${url.search || ''}`;
	delete options.pathname;
	delete options.search;
	return options;
}

function normalizeUrlObject(url) {
	// If url was parsed by url.parse or new URL:
	// - hostname will be set
	// - host will be hostname[:port]
	// - port will be set if it was explicit in the parsed string
	// Otherwise, url was from request options:
	// - hostname or host may be set
	// - host shall not have port encoded
	return {
		protocol: url.protocol,
		auth: url.auth,
		hostname: url.hostname || url.host || 'localhost',
		port: url.port,
		pathname: url.pathname,
		search: url.search
	};
}

CacheableRequest.RequestError = class extends Error {
	constructor(error) {
		super(error.message);
		this.name = 'RequestError';
		Object.assign(this, error);
	}
};

CacheableRequest.CacheError = class extends Error {
	constructor(error) {
		super(error.message);
		this.name = 'CacheError';
		Object.assign(this, error);
	}
};

var src = CacheableRequest;

// We define these manually to ensure they're always copied
// even if they would move up the prototype chain
// https://nodejs.org/api/http.html#http_class_http_incomingmessage
const knownProperties = [
	'aborted',
	'complete',
	'headers',
	'httpVersion',
	'httpVersionMinor',
	'httpVersionMajor',
	'method',
	'rawHeaders',
	'rawTrailers',
	'setTimeout',
	'socket',
	'statusCode',
	'statusMessage',
	'trailers',
	'url'
];

var mimicResponse$1 = (fromStream, toStream) => {
	if (toStream._readableState.autoDestroy) {
		throw new Error('The second stream must have the `autoDestroy` option set to `false`');
	}

	const fromProperties = new Set(Object.keys(fromStream).concat(knownProperties));

	const properties = {};

	for (const property of fromProperties) {
		// Don't overwrite existing properties.
		if (property in toStream) {
			continue;
		}

		properties[property] = {
			get() {
				const value = fromStream[property];
				const isFunction = typeof value === 'function';

				return isFunction ? value.bind(fromStream) : value;
			},
			set(value) {
				fromStream[property] = value;
			},
			enumerable: true,
			configurable: false
		};
	}

	Object.defineProperties(toStream, properties);

	fromStream.once('aborted', () => {
		toStream.destroy();

		toStream.emit('aborted');
	});

	fromStream.once('close', () => {
		if (fromStream.complete) {
			if (toStream.readable) {
				toStream.once('end', () => {
					toStream.emit('close');
				});
			} else {
				toStream.emit('close');
			}
		} else {
			toStream.emit('close');
		}
	});

	return toStream;
};

const {Transform, PassThrough: PassThrough$2} = require$$0__default$3["default"];
const zlib = require$$1__default$1["default"];
const mimicResponse = mimicResponse$1;

var decompressResponse = response => {
	const contentEncoding = (response.headers['content-encoding'] || '').toLowerCase();

	if (!['gzip', 'deflate', 'br'].includes(contentEncoding)) {
		return response;
	}

	// TODO: Remove this when targeting Node.js 12.
	const isBrotli = contentEncoding === 'br';
	if (isBrotli && typeof zlib.createBrotliDecompress !== 'function') {
		response.destroy(new Error('Brotli is not supported on Node.js < 12'));
		return response;
	}

	let isEmpty = true;

	const checker = new Transform({
		transform(data, _encoding, callback) {
			isEmpty = false;

			callback(null, data);
		},

		flush(callback) {
			callback();
		}
	});

	const finalStream = new PassThrough$2({
		autoDestroy: false,
		destroy(error, callback) {
			response.destroy();

			callback(error);
		}
	});

	const decompressStream = isBrotli ? zlib.createBrotliDecompress() : zlib.createUnzip();

	decompressStream.once('error', error => {
		if (isEmpty && !response.readable) {
			finalStream.end();
			return;
		}

		finalStream.destroy(error);
	});

	mimicResponse(response, finalStream);
	response.pipe(checker).pipe(decompressStream).pipe(finalStream);

	return finalStream;
};

class QuickLRU$2 {
	constructor(options = {}) {
		if (!(options.maxSize && options.maxSize > 0)) {
			throw new TypeError('`maxSize` must be a number greater than 0');
		}

		this.maxSize = options.maxSize;
		this.onEviction = options.onEviction;
		this.cache = new Map();
		this.oldCache = new Map();
		this._size = 0;
	}

	_set(key, value) {
		this.cache.set(key, value);
		this._size++;

		if (this._size >= this.maxSize) {
			this._size = 0;

			if (typeof this.onEviction === 'function') {
				for (const [key, value] of this.oldCache.entries()) {
					this.onEviction(key, value);
				}
			}

			this.oldCache = this.cache;
			this.cache = new Map();
		}
	}

	get(key) {
		if (this.cache.has(key)) {
			return this.cache.get(key);
		}

		if (this.oldCache.has(key)) {
			const value = this.oldCache.get(key);
			this.oldCache.delete(key);
			this._set(key, value);
			return value;
		}
	}

	set(key, value) {
		if (this.cache.has(key)) {
			this.cache.set(key, value);
		} else {
			this._set(key, value);
		}

		return this;
	}

	has(key) {
		return this.cache.has(key) || this.oldCache.has(key);
	}

	peek(key) {
		if (this.cache.has(key)) {
			return this.cache.get(key);
		}

		if (this.oldCache.has(key)) {
			return this.oldCache.get(key);
		}
	}

	delete(key) {
		const deleted = this.cache.delete(key);
		if (deleted) {
			this._size--;
		}

		return this.oldCache.delete(key) || deleted;
	}

	clear() {
		this.cache.clear();
		this.oldCache.clear();
		this._size = 0;
	}

	* keys() {
		for (const [key] of this) {
			yield key;
		}
	}

	* values() {
		for (const [, value] of this) {
			yield value;
		}
	}

	* [Symbol.iterator]() {
		for (const item of this.cache) {
			yield item;
		}

		for (const item of this.oldCache) {
			const [key] = item;
			if (!this.cache.has(key)) {
				yield item;
			}
		}
	}

	get size() {
		let oldCacheSize = 0;
		for (const key of this.oldCache.keys()) {
			if (!this.cache.has(key)) {
				oldCacheSize++;
			}
		}

		return Math.min(this._size + oldCacheSize, this.maxSize);
	}
}

var quickLru = QuickLRU$2;

const EventEmitter = require$$0__default$5["default"];
const tls$1 = require$$1__default$2["default"];
const http2$2 = require$$0__default$7["default"];
const QuickLRU$1 = quickLru;

const kCurrentStreamsCount = Symbol('currentStreamsCount');
const kRequest = Symbol('request');
const kOriginSet = Symbol('cachedOriginSet');
const kGracefullyClosing = Symbol('gracefullyClosing');

const nameKeys = [
	// `http2.connect()` options
	'maxDeflateDynamicTableSize',
	'maxSessionMemory',
	'maxHeaderListPairs',
	'maxOutstandingPings',
	'maxReservedRemoteStreams',
	'maxSendHeaderBlockLength',
	'paddingStrategy',

	// `tls.connect()` options
	'localAddress',
	'path',
	'rejectUnauthorized',
	'minDHSize',

	// `tls.createSecureContext()` options
	'ca',
	'cert',
	'clientCertEngine',
	'ciphers',
	'key',
	'pfx',
	'servername',
	'minVersion',
	'maxVersion',
	'secureProtocol',
	'crl',
	'honorCipherOrder',
	'ecdhCurve',
	'dhparam',
	'secureOptions',
	'sessionIdContext'
];

const getSortedIndex = (array, value, compare) => {
	let low = 0;
	let high = array.length;

	while (low < high) {
		const mid = (low + high) >>> 1;

		/* istanbul ignore next */
		if (compare(array[mid], value)) {
			// This never gets called because we use descending sort. Better to have this anyway.
			low = mid + 1;
		} else {
			high = mid;
		}
	}

	return low;
};

const compareSessions = (a, b) => {
	return a.remoteSettings.maxConcurrentStreams > b.remoteSettings.maxConcurrentStreams;
};

// See https://tools.ietf.org/html/rfc8336
const closeCoveredSessions = (where, session) => {
	// Clients SHOULD NOT emit new requests on any connection whose Origin
	// Set is a proper subset of another connection's Origin Set, and they
	// SHOULD close it once all outstanding requests are satisfied.
	for (const coveredSession of where) {
		if (
			// The set is a proper subset when its length is less than the other set.
			coveredSession[kOriginSet].length < session[kOriginSet].length &&

			// And the other set includes all elements of the subset.
			coveredSession[kOriginSet].every(origin => session[kOriginSet].includes(origin)) &&

			// Makes sure that the session can handle all requests from the covered session.
			coveredSession[kCurrentStreamsCount] + session[kCurrentStreamsCount] <= session.remoteSettings.maxConcurrentStreams
		) {
			// This allows pending requests to finish and prevents making new requests.
			gracefullyClose(coveredSession);
		}
	}
};

// This is basically inverted `closeCoveredSessions(...)`.
const closeSessionIfCovered = (where, coveredSession) => {
	for (const session of where) {
		if (
			coveredSession[kOriginSet].length < session[kOriginSet].length &&
			coveredSession[kOriginSet].every(origin => session[kOriginSet].includes(origin)) &&
			coveredSession[kCurrentStreamsCount] + session[kCurrentStreamsCount] <= session.remoteSettings.maxConcurrentStreams
		) {
			gracefullyClose(coveredSession);
		}
	}
};

const getSessions = ({agent, isFree}) => {
	const result = {};

	// eslint-disable-next-line guard-for-in
	for (const normalizedOptions in agent.sessions) {
		const sessions = agent.sessions[normalizedOptions];

		const filtered = sessions.filter(session => {
			const result = session[Agent$1.kCurrentStreamsCount] < session.remoteSettings.maxConcurrentStreams;

			return isFree ? result : !result;
		});

		if (filtered.length !== 0) {
			result[normalizedOptions] = filtered;
		}
	}

	return result;
};

const gracefullyClose = session => {
	session[kGracefullyClosing] = true;

	if (session[kCurrentStreamsCount] === 0) {
		session.close();
	}
};

class Agent$1 extends EventEmitter {
	constructor({timeout = 60000, maxSessions = Infinity, maxFreeSessions = 10, maxCachedTlsSessions = 100} = {}) {
		super();

		// A session is considered busy when its current streams count
		// is equal to or greater than the `maxConcurrentStreams` value.

		// A session is considered free when its current streams count
		// is less than the `maxConcurrentStreams` value.

		// SESSIONS[NORMALIZED_OPTIONS] = [];
		this.sessions = {};

		// The queue for creating new sessions. It looks like this:
		// QUEUE[NORMALIZED_OPTIONS][NORMALIZED_ORIGIN] = ENTRY_FUNCTION
		//
		// The entry function has `listeners`, `completed` and `destroyed` properties.
		// `listeners` is an array of objects containing `resolve` and `reject` functions.
		// `completed` is a boolean. It's set to true after ENTRY_FUNCTION is executed.
		// `destroyed` is a boolean. If it's set to true, the session will be destroyed if hasn't connected yet.
		this.queue = {};

		// Each session will use this timeout value.
		this.timeout = timeout;

		// Max sessions in total
		this.maxSessions = maxSessions;

		// Max free sessions in total
		// TODO: decreasing `maxFreeSessions` should close some sessions
		this.maxFreeSessions = maxFreeSessions;

		this._freeSessionsCount = 0;
		this._sessionsCount = 0;

		// We don't support push streams by default.
		this.settings = {
			enablePush: false
		};

		// Reusing TLS sessions increases performance.
		this.tlsSessionCache = new QuickLRU$1({maxSize: maxCachedTlsSessions});
	}

	static normalizeOrigin(url, servername) {
		if (typeof url === 'string') {
			url = new URL(url);
		}

		if (servername && url.hostname !== servername) {
			url.hostname = servername;
		}

		return url.origin;
	}

	normalizeOptions(options) {
		let normalized = '';

		if (options) {
			for (const key of nameKeys) {
				if (options[key]) {
					normalized += `:${options[key]}`;
				}
			}
		}

		return normalized;
	}

	_tryToCreateNewSession(normalizedOptions, normalizedOrigin) {
		if (!(normalizedOptions in this.queue) || !(normalizedOrigin in this.queue[normalizedOptions])) {
			return;
		}

		const item = this.queue[normalizedOptions][normalizedOrigin];

		// The entry function can be run only once.
		// BUG: The session may be never created when:
		// - the first condition is false AND
		// - this function is never called with the same arguments in the future.
		if (this._sessionsCount < this.maxSessions && !item.completed) {
			item.completed = true;

			item();
		}
	}

	getSession(origin, options, listeners) {
		return new Promise((resolve, reject) => {
			if (Array.isArray(listeners)) {
				listeners = [...listeners];

				// Resolve the current promise ASAP, we're just moving the listeners.
				// They will be executed at a different time.
				resolve();
			} else {
				listeners = [{resolve, reject}];
			}

			const normalizedOptions = this.normalizeOptions(options);
			const normalizedOrigin = Agent$1.normalizeOrigin(origin, options && options.servername);

			if (normalizedOrigin === undefined) {
				for (const {reject} of listeners) {
					reject(new TypeError('The `origin` argument needs to be a string or an URL object'));
				}

				return;
			}

			if (normalizedOptions in this.sessions) {
				const sessions = this.sessions[normalizedOptions];

				let maxConcurrentStreams = -1;
				let currentStreamsCount = -1;
				let optimalSession;

				// We could just do this.sessions[normalizedOptions].find(...) but that isn't optimal.
				// Additionally, we are looking for session which has biggest current pending streams count.
				for (const session of sessions) {
					const sessionMaxConcurrentStreams = session.remoteSettings.maxConcurrentStreams;

					if (sessionMaxConcurrentStreams < maxConcurrentStreams) {
						break;
					}

					if (session[kOriginSet].includes(normalizedOrigin)) {
						const sessionCurrentStreamsCount = session[kCurrentStreamsCount];

						if (
							sessionCurrentStreamsCount >= sessionMaxConcurrentStreams ||
							session[kGracefullyClosing] ||
							// Unfortunately the `close` event isn't called immediately,
							// so `session.destroyed` is `true`, but `session.closed` is `false`.
							session.destroyed
						) {
							continue;
						}

						// We only need set this once.
						if (!optimalSession) {
							maxConcurrentStreams = sessionMaxConcurrentStreams;
						}

						// We're looking for the session which has biggest current pending stream count,
						// in order to minimalize the amount of active sessions.
						if (sessionCurrentStreamsCount > currentStreamsCount) {
							optimalSession = session;
							currentStreamsCount = sessionCurrentStreamsCount;
						}
					}
				}

				if (optimalSession) {
					/* istanbul ignore next: safety check */
					if (listeners.length !== 1) {
						for (const {reject} of listeners) {
							const error = new Error(
								`Expected the length of listeners to be 1, got ${listeners.length}.\n` +
								'Please report this to https://github.com/szmarczak/http2-wrapper/'
							);

							reject(error);
						}

						return;
					}

					listeners[0].resolve(optimalSession);
					return;
				}
			}

			if (normalizedOptions in this.queue) {
				if (normalizedOrigin in this.queue[normalizedOptions]) {
					// There's already an item in the queue, just attach ourselves to it.
					this.queue[normalizedOptions][normalizedOrigin].listeners.push(...listeners);

					// This shouldn't be executed here.
					// See the comment inside _tryToCreateNewSession.
					this._tryToCreateNewSession(normalizedOptions, normalizedOrigin);
					return;
				}
			} else {
				this.queue[normalizedOptions] = {};
			}

			// The entry must be removed from the queue IMMEDIATELY when:
			// 1. the session connects successfully,
			// 2. an error occurs.
			const removeFromQueue = () => {
				// Our entry can be replaced. We cannot remove the new one.
				if (normalizedOptions in this.queue && this.queue[normalizedOptions][normalizedOrigin] === entry) {
					delete this.queue[normalizedOptions][normalizedOrigin];

					if (Object.keys(this.queue[normalizedOptions]).length === 0) {
						delete this.queue[normalizedOptions];
					}
				}
			};

			// The main logic is here
			const entry = () => {
				const name = `${normalizedOrigin}:${normalizedOptions}`;
				let receivedSettings = false;

				try {
					const session = http2$2.connect(origin, {
						createConnection: this.createConnection,
						settings: this.settings,
						session: this.tlsSessionCache.get(name),
						...options
					});
					session[kCurrentStreamsCount] = 0;
					session[kGracefullyClosing] = false;

					const isFree = () => session[kCurrentStreamsCount] < session.remoteSettings.maxConcurrentStreams;
					let wasFree = true;

					session.socket.once('session', tlsSession => {
						this.tlsSessionCache.set(name, tlsSession);
					});

					session.once('error', error => {
						// Listeners are empty when the session successfully connected.
						for (const {reject} of listeners) {
							reject(error);
						}

						// The connection got broken, purge the cache.
						this.tlsSessionCache.delete(name);
					});

					session.setTimeout(this.timeout, () => {
						// Terminates all streams owned by this session.
						// TODO: Maybe the streams should have a "Session timed out" error?
						session.destroy();
					});

					session.once('close', () => {
						if (receivedSettings) {
							// 1. If it wasn't free then no need to decrease because
							//    it has been decreased already in session.request().
							// 2. `stream.once('close')` won't increment the count
							//    because the session is already closed.
							if (wasFree) {
								this._freeSessionsCount--;
							}

							this._sessionsCount--;

							// This cannot be moved to the stream logic,
							// because there may be a session that hadn't made a single request.
							const where = this.sessions[normalizedOptions];
							where.splice(where.indexOf(session), 1);

							if (where.length === 0) {
								delete this.sessions[normalizedOptions];
							}
						} else {
							// Broken connection
							const error = new Error('Session closed without receiving a SETTINGS frame');
							error.code = 'HTTP2WRAPPER_NOSETTINGS';

							for (const {reject} of listeners) {
								reject(error);
							}

							removeFromQueue();
						}

						// There may be another session awaiting.
						this._tryToCreateNewSession(normalizedOptions, normalizedOrigin);
					});

					// Iterates over the queue and processes listeners.
					const processListeners = () => {
						if (!(normalizedOptions in this.queue) || !isFree()) {
							return;
						}

						for (const origin of session[kOriginSet]) {
							if (origin in this.queue[normalizedOptions]) {
								const {listeners} = this.queue[normalizedOptions][origin];

								// Prevents session overloading.
								while (listeners.length !== 0 && isFree()) {
									// We assume `resolve(...)` calls `request(...)` *directly*,
									// otherwise the session will get overloaded.
									listeners.shift().resolve(session);
								}

								const where = this.queue[normalizedOptions];
								if (where[origin].listeners.length === 0) {
									delete where[origin];

									if (Object.keys(where).length === 0) {
										delete this.queue[normalizedOptions];
										break;
									}
								}

								// We're no longer free, no point in continuing.
								if (!isFree()) {
									break;
								}
							}
						}
					};

					// The Origin Set cannot shrink. No need to check if it suddenly became covered by another one.
					session.on('origin', () => {
						session[kOriginSet] = session.originSet;

						if (!isFree()) {
							// The session is full.
							return;
						}

						processListeners();

						// Close covered sessions (if possible).
						closeCoveredSessions(this.sessions[normalizedOptions], session);
					});

					session.once('remoteSettings', () => {
						// Fix Node.js bug preventing the process from exiting
						session.ref();
						session.unref();

						this._sessionsCount++;

						// The Agent could have been destroyed already.
						if (entry.destroyed) {
							const error = new Error('Agent has been destroyed');

							for (const listener of listeners) {
								listener.reject(error);
							}

							session.destroy();
							return;
						}

						session[kOriginSet] = session.originSet;

						{
							const where = this.sessions;

							if (normalizedOptions in where) {
								const sessions = where[normalizedOptions];
								sessions.splice(getSortedIndex(sessions, session, compareSessions), 0, session);
							} else {
								where[normalizedOptions] = [session];
							}
						}

						this._freeSessionsCount += 1;
						receivedSettings = true;

						this.emit('session', session);

						processListeners();
						removeFromQueue();

						// TODO: Close last recently used (or least used?) session
						if (session[kCurrentStreamsCount] === 0 && this._freeSessionsCount > this.maxFreeSessions) {
							session.close();
						}

						// Check if we haven't managed to execute all listeners.
						if (listeners.length !== 0) {
							// Request for a new session with predefined listeners.
							this.getSession(normalizedOrigin, options, listeners);
							listeners.length = 0;
						}

						// `session.remoteSettings.maxConcurrentStreams` might get increased
						session.on('remoteSettings', () => {
							processListeners();

							// In case the Origin Set changes
							closeCoveredSessions(this.sessions[normalizedOptions], session);
						});
					});

					// Shim `session.request()` in order to catch all streams
					session[kRequest] = session.request;
					session.request = (headers, streamOptions) => {
						if (session[kGracefullyClosing]) {
							throw new Error('The session is gracefully closing. No new streams are allowed.');
						}

						const stream = session[kRequest](headers, streamOptions);

						// The process won't exit until the session is closed or all requests are gone.
						session.ref();

						++session[kCurrentStreamsCount];

						if (session[kCurrentStreamsCount] === session.remoteSettings.maxConcurrentStreams) {
							this._freeSessionsCount--;
						}

						stream.once('close', () => {
							wasFree = isFree();

							--session[kCurrentStreamsCount];

							if (!session.destroyed && !session.closed) {
								closeSessionIfCovered(this.sessions[normalizedOptions], session);

								if (isFree() && !session.closed) {
									if (!wasFree) {
										this._freeSessionsCount++;

										wasFree = true;
									}

									const isEmpty = session[kCurrentStreamsCount] === 0;

									if (isEmpty) {
										session.unref();
									}

									if (
										isEmpty &&
										(
											this._freeSessionsCount > this.maxFreeSessions ||
											session[kGracefullyClosing]
										)
									) {
										session.close();
									} else {
										closeCoveredSessions(this.sessions[normalizedOptions], session);
										processListeners();
									}
								}
							}
						});

						return stream;
					};
				} catch (error) {
					for (const listener of listeners) {
						listener.reject(error);
					}

					removeFromQueue();
				}
			};

			entry.listeners = listeners;
			entry.completed = false;
			entry.destroyed = false;

			this.queue[normalizedOptions][normalizedOrigin] = entry;
			this._tryToCreateNewSession(normalizedOptions, normalizedOrigin);
		});
	}

	request(origin, options, headers, streamOptions) {
		return new Promise((resolve, reject) => {
			this.getSession(origin, options, [{
				reject,
				resolve: session => {
					try {
						resolve(session.request(headers, streamOptions));
					} catch (error) {
						reject(error);
					}
				}
			}]);
		});
	}

	createConnection(origin, options) {
		return Agent$1.connect(origin, options);
	}

	static connect(origin, options) {
		options.ALPNProtocols = ['h2'];

		const port = origin.port || 443;
		const host = origin.hostname || origin.host;

		if (typeof options.servername === 'undefined') {
			options.servername = host;
		}

		return tls$1.connect(port, host, options);
	}

	closeFreeSessions() {
		for (const sessions of Object.values(this.sessions)) {
			for (const session of sessions) {
				if (session[kCurrentStreamsCount] === 0) {
					session.close();
				}
			}
		}
	}

	destroy(reason) {
		for (const sessions of Object.values(this.sessions)) {
			for (const session of sessions) {
				session.destroy(reason);
			}
		}

		for (const entriesOfAuthority of Object.values(this.queue)) {
			for (const entry of Object.values(entriesOfAuthority)) {
				entry.destroyed = true;
			}
		}

		// New requests should NOT attach to destroyed sessions
		this.queue = {};
	}

	get freeSessions() {
		return getSessions({agent: this, isFree: true});
	}

	get busySessions() {
		return getSessions({agent: this, isFree: false});
	}
}

Agent$1.kCurrentStreamsCount = kCurrentStreamsCount;
Agent$1.kGracefullyClosing = kGracefullyClosing;

var agent$1 = {
	Agent: Agent$1,
	globalAgent: new Agent$1()
};

const {Readable} = require$$0__default$3["default"];

class IncomingMessage$2 extends Readable {
	constructor(socket, highWaterMark) {
		super({
			highWaterMark,
			autoDestroy: false
		});

		this.statusCode = null;
		this.statusMessage = '';
		this.httpVersion = '2.0';
		this.httpVersionMajor = 2;
		this.httpVersionMinor = 0;
		this.headers = {};
		this.trailers = {};
		this.req = null;

		this.aborted = false;
		this.complete = false;
		this.upgrade = null;

		this.rawHeaders = [];
		this.rawTrailers = [];

		this.socket = socket;
		this.connection = socket;

		this._dumped = false;
	}

	_destroy(error) {
		this.req._request.destroy(error);
	}

	setTimeout(ms, callback) {
		this.req.setTimeout(ms, callback);
		return this;
	}

	_dump() {
		if (!this._dumped) {
			this._dumped = true;

			this.removeAllListeners('data');
			this.resume();
		}
	}

	_read() {
		if (this.req) {
			this.req._request.resume();
		}
	}
}

var incomingMessage = IncomingMessage$2;

/* istanbul ignore file: https://github.com/nodejs/node/blob/a91293d4d9ab403046ab5eb022332e4e3d249bd3/lib/internal/url.js#L1257 */

var urlToOptions$3 = url => {
	const options = {
		protocol: url.protocol,
		hostname: typeof url.hostname === 'string' && url.hostname.startsWith('[') ? url.hostname.slice(1, -1) : url.hostname,
		host: url.host,
		hash: url.hash,
		search: url.search,
		pathname: url.pathname,
		href: url.href,
		path: `${url.pathname || ''}${url.search || ''}`
	};

	if (typeof url.port === 'string' && url.port.length !== 0) {
		options.port = Number(url.port);
	}

	if (url.username || url.password) {
		options.auth = `${url.username || ''}:${url.password || ''}`;
	}

	return options;
};

var proxyEvents$2 = (from, to, events) => {
	for (const event of events) {
		from.on(event, (...args) => to.emit(event, ...args));
	}
};

var isRequestPseudoHeader$1 = header => {
	switch (header) {
		case ':method':
		case ':scheme':
		case ':authority':
		case ':path':
			return true;
		default:
			return false;
	}
};

var errors$1 = {exports: {}};

(function (module) {
	/* istanbul ignore file: https://github.com/nodejs/node/blob/master/lib/internal/errors.js */

	const makeError = (Base, key, getMessage) => {
		module.exports[key] = class NodeError extends Base {
			constructor(...args) {
				super(typeof getMessage === 'string' ? getMessage : getMessage(args));
				this.name = `${super.name} [${key}]`;
				this.code = key;
			}
		};
	};

	makeError(TypeError, 'ERR_INVALID_ARG_TYPE', args => {
		const type = args[0].includes('.') ? 'property' : 'argument';

		let valid = args[1];
		const isManyTypes = Array.isArray(valid);

		if (isManyTypes) {
			valid = `${valid.slice(0, -1).join(', ')} or ${valid.slice(-1)}`;
		}

		return `The "${args[0]}" ${type} must be ${isManyTypes ? 'one of' : 'of'} type ${valid}. Received ${typeof args[2]}`;
	});

	makeError(TypeError, 'ERR_INVALID_PROTOCOL', args => {
		return `Protocol "${args[0]}" not supported. Expected "${args[1]}"`;
	});

	makeError(Error, 'ERR_HTTP_HEADERS_SENT', args => {
		return `Cannot ${args[0]} headers after they are sent to the client`;
	});

	makeError(TypeError, 'ERR_INVALID_HTTP_TOKEN', args => {
		return `${args[0]} must be a valid HTTP token [${args[1]}]`;
	});

	makeError(TypeError, 'ERR_HTTP_INVALID_HEADER_VALUE', args => {
		return `Invalid value "${args[0]} for header "${args[1]}"`;
	});

	makeError(TypeError, 'ERR_INVALID_CHAR', args => {
		return `Invalid character in ${args[0]} [${args[1]}]`;
	});
} (errors$1));

const http2$1 = require$$0__default$7["default"];
const {Writable} = require$$0__default$3["default"];
const {Agent, globalAgent} = agent$1;
const IncomingMessage$1 = incomingMessage;
const urlToOptions$2 = urlToOptions$3;
const proxyEvents$1 = proxyEvents$2;
const isRequestPseudoHeader = isRequestPseudoHeader$1;
const {
	ERR_INVALID_ARG_TYPE,
	ERR_INVALID_PROTOCOL,
	ERR_HTTP_HEADERS_SENT,
	ERR_INVALID_HTTP_TOKEN,
	ERR_HTTP_INVALID_HEADER_VALUE,
	ERR_INVALID_CHAR
} = errors$1.exports;

const {
	HTTP2_HEADER_STATUS,
	HTTP2_HEADER_METHOD,
	HTTP2_HEADER_PATH,
	HTTP2_METHOD_CONNECT
} = http2$1.constants;

const kHeaders = Symbol('headers');
const kOrigin = Symbol('origin');
const kSession = Symbol('session');
const kOptions = Symbol('options');
const kFlushedHeaders = Symbol('flushedHeaders');
const kJobs = Symbol('jobs');

const isValidHttpToken = /^[\^`\-\w!#$%&*+.|~]+$/;
const isInvalidHeaderValue = /[^\t\u0020-\u007E\u0080-\u00FF]/;

class ClientRequest$1 extends Writable {
	constructor(input, options, callback) {
		super({
			autoDestroy: false
		});

		const hasInput = typeof input === 'string' || input instanceof URL;
		if (hasInput) {
			input = urlToOptions$2(input instanceof URL ? input : new URL(input));
		}

		if (typeof options === 'function' || options === undefined) {
			// (options, callback)
			callback = options;
			options = hasInput ? input : {...input};
		} else {
			// (input, options, callback)
			options = {...input, ...options};
		}

		if (options.h2session) {
			this[kSession] = options.h2session;
		} else if (options.agent === false) {
			this.agent = new Agent({maxFreeSessions: 0});
		} else if (typeof options.agent === 'undefined' || options.agent === null) {
			if (typeof options.createConnection === 'function') {
				// This is a workaround - we don't have to create the session on our own.
				this.agent = new Agent({maxFreeSessions: 0});
				this.agent.createConnection = options.createConnection;
			} else {
				this.agent = globalAgent;
			}
		} else if (typeof options.agent.request === 'function') {
			this.agent = options.agent;
		} else {
			throw new ERR_INVALID_ARG_TYPE('options.agent', ['Agent-like Object', 'undefined', 'false'], options.agent);
		}

		if (options.protocol && options.protocol !== 'https:') {
			throw new ERR_INVALID_PROTOCOL(options.protocol, 'https:');
		}

		const port = options.port || options.defaultPort || (this.agent && this.agent.defaultPort) || 443;
		const host = options.hostname || options.host || 'localhost';

		// Don't enforce the origin via options. It may be changed in an Agent.
		delete options.hostname;
		delete options.host;
		delete options.port;

		const {timeout} = options;
		options.timeout = undefined;

		this[kHeaders] = Object.create(null);
		this[kJobs] = [];

		this.socket = null;
		this.connection = null;

		this.method = options.method || 'GET';
		this.path = options.path;

		this.res = null;
		this.aborted = false;
		this.reusedSocket = false;

		if (options.headers) {
			for (const [header, value] of Object.entries(options.headers)) {
				this.setHeader(header, value);
			}
		}

		if (options.auth && !('authorization' in this[kHeaders])) {
			this[kHeaders].authorization = 'Basic ' + Buffer.from(options.auth).toString('base64');
		}

		options.session = options.tlsSession;
		options.path = options.socketPath;

		this[kOptions] = options;

		// Clients that generate HTTP/2 requests directly SHOULD use the :authority pseudo-header field instead of the Host header field.
		if (port === 443) {
			this[kOrigin] = `https://${host}`;

			if (!(':authority' in this[kHeaders])) {
				this[kHeaders][':authority'] = host;
			}
		} else {
			this[kOrigin] = `https://${host}:${port}`;

			if (!(':authority' in this[kHeaders])) {
				this[kHeaders][':authority'] = `${host}:${port}`;
			}
		}

		if (timeout) {
			this.setTimeout(timeout);
		}

		if (callback) {
			this.once('response', callback);
		}

		this[kFlushedHeaders] = false;
	}

	get method() {
		return this[kHeaders][HTTP2_HEADER_METHOD];
	}

	set method(value) {
		if (value) {
			this[kHeaders][HTTP2_HEADER_METHOD] = value.toUpperCase();
		}
	}

	get path() {
		return this[kHeaders][HTTP2_HEADER_PATH];
	}

	set path(value) {
		if (value) {
			this[kHeaders][HTTP2_HEADER_PATH] = value;
		}
	}

	get _mustNotHaveABody() {
		return this.method === 'GET' || this.method === 'HEAD' || this.method === 'DELETE';
	}

	_write(chunk, encoding, callback) {
		// https://github.com/nodejs/node/blob/654df09ae0c5e17d1b52a900a545f0664d8c7627/lib/internal/http2/util.js#L148-L156
		if (this._mustNotHaveABody) {
			callback(new Error('The GET, HEAD and DELETE methods must NOT have a body'));
			/* istanbul ignore next: Node.js 12 throws directly */
			return;
		}

		this.flushHeaders();

		const callWrite = () => this._request.write(chunk, encoding, callback);
		if (this._request) {
			callWrite();
		} else {
			this[kJobs].push(callWrite);
		}
	}

	_final(callback) {
		if (this.destroyed) {
			return;
		}

		this.flushHeaders();

		const callEnd = () => {
			// For GET, HEAD and DELETE
			if (this._mustNotHaveABody) {
				callback();
				return;
			}

			this._request.end(callback);
		};

		if (this._request) {
			callEnd();
		} else {
			this[kJobs].push(callEnd);
		}
	}

	abort() {
		if (this.res && this.res.complete) {
			return;
		}

		if (!this.aborted) {
			process.nextTick(() => this.emit('abort'));
		}

		this.aborted = true;

		this.destroy();
	}

	_destroy(error, callback) {
		if (this.res) {
			this.res._dump();
		}

		if (this._request) {
			this._request.destroy();
		}

		callback(error);
	}

	async flushHeaders() {
		if (this[kFlushedHeaders] || this.destroyed) {
			return;
		}

		this[kFlushedHeaders] = true;

		const isConnectMethod = this.method === HTTP2_METHOD_CONNECT;

		// The real magic is here
		const onStream = stream => {
			this._request = stream;

			if (this.destroyed) {
				stream.destroy();
				return;
			}

			// Forwards `timeout`, `continue`, `close` and `error` events to this instance.
			if (!isConnectMethod) {
				proxyEvents$1(stream, this, ['timeout', 'continue', 'close', 'error']);
			}

			// Wait for the `finish` event. We don't want to emit the `response` event
			// before `request.end()` is called.
			const waitForEnd = fn => {
				return (...args) => {
					if (!this.writable && !this.destroyed) {
						fn(...args);
					} else {
						this.once('finish', () => {
							fn(...args);
						});
					}
				};
			};

			// This event tells we are ready to listen for the data.
			stream.once('response', waitForEnd((headers, flags, rawHeaders) => {
				// If we were to emit raw request stream, it would be as fast as the native approach.
				// Note that wrapping the raw stream in a Proxy instance won't improve the performance (already tested it).
				const response = new IncomingMessage$1(this.socket, stream.readableHighWaterMark);
				this.res = response;

				response.req = this;
				response.statusCode = headers[HTTP2_HEADER_STATUS];
				response.headers = headers;
				response.rawHeaders = rawHeaders;

				response.once('end', () => {
					if (this.aborted) {
						response.aborted = true;
						response.emit('aborted');
					} else {
						response.complete = true;

						// Has no effect, just be consistent with the Node.js behavior
						response.socket = null;
						response.connection = null;
					}
				});

				if (isConnectMethod) {
					response.upgrade = true;

					// The HTTP1 API says the socket is detached here,
					// but we can't do that so we pass the original HTTP2 request.
					if (this.emit('connect', response, stream, Buffer.alloc(0))) {
						this.emit('close');
					} else {
						// No listeners attached, destroy the original request.
						stream.destroy();
					}
				} else {
					// Forwards data
					stream.on('data', chunk => {
						if (!response._dumped && !response.push(chunk)) {
							stream.pause();
						}
					});

					stream.once('end', () => {
						response.push(null);
					});

					if (!this.emit('response', response)) {
						// No listeners attached, dump the response.
						response._dump();
					}
				}
			}));

			// Emits `information` event
			stream.once('headers', waitForEnd(
				headers => this.emit('information', {statusCode: headers[HTTP2_HEADER_STATUS]})
			));

			stream.once('trailers', waitForEnd((trailers, flags, rawTrailers) => {
				const {res} = this;

				// Assigns trailers to the response object.
				res.trailers = trailers;
				res.rawTrailers = rawTrailers;
			}));

			const {socket} = stream.session;
			this.socket = socket;
			this.connection = socket;

			for (const job of this[kJobs]) {
				job();
			}

			this.emit('socket', this.socket);
		};

		// Makes a HTTP2 request
		if (this[kSession]) {
			try {
				onStream(this[kSession].request(this[kHeaders]));
			} catch (error) {
				this.emit('error', error);
			}
		} else {
			this.reusedSocket = true;

			try {
				onStream(await this.agent.request(this[kOrigin], this[kOptions], this[kHeaders]));
			} catch (error) {
				this.emit('error', error);
			}
		}
	}

	getHeader(name) {
		if (typeof name !== 'string') {
			throw new ERR_INVALID_ARG_TYPE('name', 'string', name);
		}

		return this[kHeaders][name.toLowerCase()];
	}

	get headersSent() {
		return this[kFlushedHeaders];
	}

	removeHeader(name) {
		if (typeof name !== 'string') {
			throw new ERR_INVALID_ARG_TYPE('name', 'string', name);
		}

		if (this.headersSent) {
			throw new ERR_HTTP_HEADERS_SENT('remove');
		}

		delete this[kHeaders][name.toLowerCase()];
	}

	setHeader(name, value) {
		if (this.headersSent) {
			throw new ERR_HTTP_HEADERS_SENT('set');
		}

		if (typeof name !== 'string' || (!isValidHttpToken.test(name) && !isRequestPseudoHeader(name))) {
			throw new ERR_INVALID_HTTP_TOKEN('Header name', name);
		}

		if (typeof value === 'undefined') {
			throw new ERR_HTTP_INVALID_HEADER_VALUE(value, name);
		}

		if (isInvalidHeaderValue.test(value)) {
			throw new ERR_INVALID_CHAR('header content', name);
		}

		this[kHeaders][name.toLowerCase()] = value;
	}

	setNoDelay() {
		// HTTP2 sockets cannot be malformed, do nothing.
	}

	setSocketKeepAlive() {
		// HTTP2 sockets cannot be malformed, do nothing.
	}

	setTimeout(ms, callback) {
		const applyTimeout = () => this._request.setTimeout(ms, callback);

		if (this._request) {
			applyTimeout();
		} else {
			this[kJobs].push(applyTimeout);
		}

		return this;
	}

	get maxHeadersCount() {
		if (!this.destroyed && this._request) {
			return this._request.session.localSettings.maxHeaderListSize;
		}

		return undefined;
	}

	set maxHeadersCount(_value) {
		// Updating HTTP2 settings would affect all requests, do nothing.
	}
}

var clientRequest = ClientRequest$1;

var auto$1 = {exports: {}};

const tls = require$$1__default$2["default"];

var resolveAlpn = (options = {}, connect = tls.connect) => new Promise((resolve, reject) => {
	let timeout = false;

	let socket;

	const callback = async () => {
		await socketPromise;

		socket.off('timeout', onTimeout);
		socket.off('error', reject);

		if (options.resolveSocket) {
			resolve({alpnProtocol: socket.alpnProtocol, socket, timeout});

			if (timeout) {
				await Promise.resolve();
				socket.emit('timeout');
			}
		} else {
			socket.destroy();
			resolve({alpnProtocol: socket.alpnProtocol, timeout});
		}
	};

	const onTimeout = async () => {
		timeout = true;
		callback();
	};

	const socketPromise = (async () => {
		try {
			socket = await connect(options, callback);

			socket.on('error', reject);
			socket.once('timeout', onTimeout);
		} catch (error) {
			reject(error);
		}
	})();
});

const net$1 = require$$0__default$8["default"];
/* istanbul ignore file: https://github.com/nodejs/node/blob/v13.0.1/lib/_http_agent.js */

var calculateServerName$1 = options => {
	let servername = options.host;
	const hostHeader = options.headers && options.headers.host;

	if (hostHeader) {
		if (hostHeader.startsWith('[')) {
			const index = hostHeader.indexOf(']');
			if (index === -1) {
				servername = hostHeader;
			} else {
				servername = hostHeader.slice(1, -1);
			}
		} else {
			servername = hostHeader.split(':', 1)[0];
		}
	}

	if (net$1.isIP(servername)) {
		return '';
	}

	return servername;
};

const http = require$$4__default["default"];
const https = require$$1__default$3["default"];
const resolveALPN = resolveAlpn;
const QuickLRU = quickLru;
const Http2ClientRequest = clientRequest;
const calculateServerName = calculateServerName$1;
const urlToOptions$1 = urlToOptions$3;

const cache = new QuickLRU({maxSize: 100});
const queue = new Map();

const installSocket = (agent, socket, options) => {
	socket._httpMessage = {shouldKeepAlive: true};

	const onFree = () => {
		agent.emit('free', socket, options);
	};

	socket.on('free', onFree);

	const onClose = () => {
		agent.removeSocket(socket, options);
	};

	socket.on('close', onClose);

	const onRemove = () => {
		agent.removeSocket(socket, options);
		socket.off('close', onClose);
		socket.off('free', onFree);
		socket.off('agentRemove', onRemove);
	};

	socket.on('agentRemove', onRemove);

	agent.emit('free', socket, options);
};

const resolveProtocol = async options => {
	const name = `${options.host}:${options.port}:${options.ALPNProtocols.sort()}`;

	if (!cache.has(name)) {
		if (queue.has(name)) {
			const result = await queue.get(name);
			return result.alpnProtocol;
		}

		const {path, agent} = options;
		options.path = options.socketPath;

		const resultPromise = resolveALPN(options);
		queue.set(name, resultPromise);

		try {
			const {socket, alpnProtocol} = await resultPromise;
			cache.set(name, alpnProtocol);

			options.path = path;

			if (alpnProtocol === 'h2') {
				// https://github.com/nodejs/node/issues/33343
				socket.destroy();
			} else {
				const {globalAgent} = https;
				const defaultCreateConnection = https.Agent.prototype.createConnection;

				if (agent) {
					if (agent.createConnection === defaultCreateConnection) {
						installSocket(agent, socket, options);
					} else {
						socket.destroy();
					}
				} else if (globalAgent.createConnection === defaultCreateConnection) {
					installSocket(globalAgent, socket, options);
				} else {
					socket.destroy();
				}
			}

			queue.delete(name);

			return alpnProtocol;
		} catch (error) {
			queue.delete(name);

			throw error;
		}
	}

	return cache.get(name);
};

auto$1.exports = async (input, options, callback) => {
	if (typeof input === 'string' || input instanceof URL) {
		input = urlToOptions$1(new URL(input));
	}

	if (typeof options === 'function') {
		callback = options;
		options = undefined;
	}

	options = {
		ALPNProtocols: ['h2', 'http/1.1'],
		...input,
		...options,
		resolveSocket: true
	};

	if (!Array.isArray(options.ALPNProtocols) || options.ALPNProtocols.length === 0) {
		throw new Error('The `ALPNProtocols` option must be an Array with at least one entry');
	}

	options.protocol = options.protocol || 'https:';
	const isHttps = options.protocol === 'https:';

	options.host = options.hostname || options.host || 'localhost';
	options.session = options.tlsSession;
	options.servername = options.servername || calculateServerName(options);
	options.port = options.port || (isHttps ? 443 : 80);
	options._defaultAgent = isHttps ? https.globalAgent : http.globalAgent;

	const agents = options.agent;

	if (agents) {
		if (agents.addRequest) {
			throw new Error('The `options.agent` object can contain only `http`, `https` or `http2` properties');
		}

		options.agent = agents[isHttps ? 'https' : 'http'];
	}

	if (isHttps) {
		const protocol = await resolveProtocol(options);

		if (protocol === 'h2') {
			if (agents) {
				options.agent = agents.http2;
			}

			return new Http2ClientRequest(options, callback);
		}
	}

	return http.request(options, callback);
};

auto$1.exports.protocolCache = cache;

const http2 = require$$0__default$7["default"];
const agent = agent$1;
const ClientRequest = clientRequest;
const IncomingMessage = incomingMessage;
const auto = auto$1.exports;

const request = (url, options, callback) => {
	return new ClientRequest(url, options, callback);
};

const get$1 = (url, options, callback) => {
	// eslint-disable-next-line unicorn/prevent-abbreviations
	const req = new ClientRequest(url, options, callback);
	req.end();

	return req;
};

var source = {
	...http2,
	ClientRequest,
	IncomingMessage,
	...agent,
	request,
	get: get$1,
	auto
};

var getBodySize = {};

var isFormData = {};

Object.defineProperty(isFormData, "__esModule", { value: true });
const is_1$4 = dist.exports;
isFormData.default = (body) => is_1$4.default.nodeStream(body) && is_1$4.default.function_(body.getBoundary);

Object.defineProperty(getBodySize, "__esModule", { value: true });
const fs_1 = require$$0__default$2["default"];
const util_1 = require$$1__default["default"];
const is_1$3 = dist.exports;
const is_form_data_1 = isFormData;
const statAsync = util_1.promisify(fs_1.stat);
getBodySize.default = async (body, headers) => {
    if (headers && 'content-length' in headers) {
        return Number(headers['content-length']);
    }
    if (!body) {
        return 0;
    }
    if (is_1$3.default.string(body)) {
        return Buffer.byteLength(body);
    }
    if (is_1$3.default.buffer(body)) {
        return body.length;
    }
    if (is_form_data_1.default(body)) {
        return util_1.promisify(body.getLength.bind(body))();
    }
    if (body instanceof fs_1.ReadStream) {
        const { size } = await statAsync(body.path);
        if (size === 0) {
            return undefined;
        }
        return size;
    }
    return undefined;
};

var proxyEvents = {};

var hasRequiredProxyEvents;

function requireProxyEvents () {
	if (hasRequiredProxyEvents) return proxyEvents;
	hasRequiredProxyEvents = 1;
	Object.defineProperty(proxyEvents, "__esModule", { value: true });
	function default_1(from, to, events) {
	    const fns = {};
	    for (const event of events) {
	        fns[event] = (...args) => {
	            to.emit(event, ...args);
	        };
	        from.on(event, fns[event]);
	    }
	    return () => {
	        for (const event of events) {
	            from.off(event, fns[event]);
	        }
	    };
	}
	proxyEvents.default = default_1;
	return proxyEvents;
}

var timedOut = {};

var unhandle = {};

Object.defineProperty(unhandle, "__esModule", { value: true });
// When attaching listeners, it's very easy to forget about them.
// Especially if you do error handling and set timeouts.
// So instead of checking if it's proper to throw an error on every timeout ever,
// use this simple tool which will remove all listeners you have attached.
unhandle.default = () => {
    const handlers = [];
    return {
        once(origin, event, fn) {
            origin.once(event, fn);
            handlers.push({ origin, event, fn });
        },
        unhandleAll() {
            for (const handler of handlers) {
                const { origin, event, fn } = handler;
                origin.removeListener(event, fn);
            }
            handlers.length = 0;
        }
    };
};

Object.defineProperty(timedOut, "__esModule", { value: true });
timedOut.TimeoutError = void 0;
const net = require$$0__default$8["default"];
const unhandle_1 = unhandle;
const reentry = Symbol('reentry');
const noop = () => { };
class TimeoutError extends Error {
    constructor(threshold, event) {
        super(`Timeout awaiting '${event}' for ${threshold}ms`);
        this.event = event;
        this.name = 'TimeoutError';
        this.code = 'ETIMEDOUT';
    }
}
timedOut.TimeoutError = TimeoutError;
timedOut.default = (request, delays, options) => {
    if (reentry in request) {
        return noop;
    }
    request[reentry] = true;
    const cancelers = [];
    const { once, unhandleAll } = unhandle_1.default();
    const addTimeout = (delay, callback, event) => {
        var _a;
        const timeout = setTimeout(callback, delay, delay, event);
        (_a = timeout.unref) === null || _a === void 0 ? void 0 : _a.call(timeout);
        const cancel = () => {
            clearTimeout(timeout);
        };
        cancelers.push(cancel);
        return cancel;
    };
    const { host, hostname } = options;
    const timeoutHandler = (delay, event) => {
        request.destroy(new TimeoutError(delay, event));
    };
    const cancelTimeouts = () => {
        for (const cancel of cancelers) {
            cancel();
        }
        unhandleAll();
    };
    request.once('error', error => {
        cancelTimeouts();
        // Save original behavior
        /* istanbul ignore next */
        if (request.listenerCount('error') === 0) {
            throw error;
        }
    });
    request.once('close', cancelTimeouts);
    once(request, 'response', (response) => {
        once(response, 'end', cancelTimeouts);
    });
    if (typeof delays.request !== 'undefined') {
        addTimeout(delays.request, timeoutHandler, 'request');
    }
    if (typeof delays.socket !== 'undefined') {
        const socketTimeoutHandler = () => {
            timeoutHandler(delays.socket, 'socket');
        };
        request.setTimeout(delays.socket, socketTimeoutHandler);
        // `request.setTimeout(0)` causes a memory leak.
        // We can just remove the listener and forget about the timer - it's unreffed.
        // See https://github.com/sindresorhus/got/issues/690
        cancelers.push(() => {
            request.removeListener('timeout', socketTimeoutHandler);
        });
    }
    once(request, 'socket', (socket) => {
        var _a;
        const { socketPath } = request;
        /* istanbul ignore next: hard to test */
        if (socket.connecting) {
            const hasPath = Boolean(socketPath !== null && socketPath !== void 0 ? socketPath : net.isIP((_a = hostname !== null && hostname !== void 0 ? hostname : host) !== null && _a !== void 0 ? _a : '') !== 0);
            if (typeof delays.lookup !== 'undefined' && !hasPath && typeof socket.address().address === 'undefined') {
                const cancelTimeout = addTimeout(delays.lookup, timeoutHandler, 'lookup');
                once(socket, 'lookup', cancelTimeout);
            }
            if (typeof delays.connect !== 'undefined') {
                const timeConnect = () => addTimeout(delays.connect, timeoutHandler, 'connect');
                if (hasPath) {
                    once(socket, 'connect', timeConnect());
                }
                else {
                    once(socket, 'lookup', (error) => {
                        if (error === null) {
                            once(socket, 'connect', timeConnect());
                        }
                    });
                }
            }
            if (typeof delays.secureConnect !== 'undefined' && options.protocol === 'https:') {
                once(socket, 'connect', () => {
                    const cancelTimeout = addTimeout(delays.secureConnect, timeoutHandler, 'secureConnect');
                    once(socket, 'secureConnect', cancelTimeout);
                });
            }
        }
        if (typeof delays.send !== 'undefined') {
            const timeRequest = () => addTimeout(delays.send, timeoutHandler, 'send');
            /* istanbul ignore next: hard to test */
            if (socket.connecting) {
                once(socket, 'connect', () => {
                    once(request, 'upload-complete', timeRequest());
                });
            }
            else {
                once(request, 'upload-complete', timeRequest());
            }
        }
    });
    if (typeof delays.response !== 'undefined') {
        once(request, 'upload-complete', () => {
            const cancelTimeout = addTimeout(delays.response, timeoutHandler, 'response');
            once(request, 'response', cancelTimeout);
        });
    }
    return cancelTimeouts;
};

var urlToOptions = {};

Object.defineProperty(urlToOptions, "__esModule", { value: true });
const is_1$2 = dist.exports;
urlToOptions.default = (url) => {
    // Cast to URL
    url = url;
    const options = {
        protocol: url.protocol,
        hostname: is_1$2.default.string(url.hostname) && url.hostname.startsWith('[') ? url.hostname.slice(1, -1) : url.hostname,
        host: url.host,
        hash: url.hash,
        search: url.search,
        pathname: url.pathname,
        href: url.href,
        path: `${url.pathname || ''}${url.search || ''}`
    };
    if (is_1$2.default.string(url.port) && url.port.length > 0) {
        options.port = Number(url.port);
    }
    if (url.username || url.password) {
        options.auth = `${url.username || ''}:${url.password || ''}`;
    }
    return options;
};

var optionsToUrl = {};

Object.defineProperty(optionsToUrl, "__esModule", { value: true });
/* istanbul ignore file: deprecated */
const url_1 = require$$0__default$6["default"];
const keys = [
    'protocol',
    'host',
    'hostname',
    'port',
    'pathname',
    'search'
];
optionsToUrl.default = (origin, options) => {
    var _a, _b;
    if (options.path) {
        if (options.pathname) {
            throw new TypeError('Parameters `path` and `pathname` are mutually exclusive.');
        }
        if (options.search) {
            throw new TypeError('Parameters `path` and `search` are mutually exclusive.');
        }
        if (options.searchParams) {
            throw new TypeError('Parameters `path` and `searchParams` are mutually exclusive.');
        }
    }
    if (options.search && options.searchParams) {
        throw new TypeError('Parameters `search` and `searchParams` are mutually exclusive.');
    }
    if (!origin) {
        if (!options.protocol) {
            throw new TypeError('No URL protocol specified');
        }
        origin = `${options.protocol}//${(_b = (_a = options.hostname) !== null && _a !== void 0 ? _a : options.host) !== null && _b !== void 0 ? _b : ''}`;
    }
    const url = new url_1.URL(origin);
    if (options.path) {
        const searchIndex = options.path.indexOf('?');
        if (searchIndex === -1) {
            options.pathname = options.path;
        }
        else {
            options.pathname = options.path.slice(0, searchIndex);
            options.search = options.path.slice(searchIndex + 1);
        }
        delete options.path;
    }
    for (const key of keys) {
        if (options[key]) {
            url[key] = options[key].toString();
        }
    }
    return url;
};

var weakableMap = {};

Object.defineProperty(weakableMap, "__esModule", { value: true });
class WeakableMap {
    constructor() {
        this.weakMap = new WeakMap();
        this.map = new Map();
    }
    set(key, value) {
        if (typeof key === 'object') {
            this.weakMap.set(key, value);
        }
        else {
            this.map.set(key, value);
        }
    }
    get(key) {
        if (typeof key === 'object') {
            return this.weakMap.get(key);
        }
        return this.map.get(key);
    }
    has(key) {
        if (typeof key === 'object') {
            return this.weakMap.has(key);
        }
        return this.map.has(key);
    }
}
weakableMap.default = WeakableMap;

var getBuffer = {};

var hasRequiredGetBuffer;

function requireGetBuffer () {
	if (hasRequiredGetBuffer) return getBuffer;
	hasRequiredGetBuffer = 1;
	Object.defineProperty(getBuffer, "__esModule", { value: true });
	// TODO: Update https://github.com/sindresorhus/get-stream
	const getBuffer$1 = async (stream) => {
	    const chunks = [];
	    let length = 0;
	    for await (const chunk of stream) {
	        chunks.push(chunk);
	        length += Buffer.byteLength(chunk);
	    }
	    if (Buffer.isBuffer(chunks[0])) {
	        return Buffer.concat(chunks, length);
	    }
	    return Buffer.from(chunks.join(''));
	};
	getBuffer.default = getBuffer$1;
	return getBuffer;
}

var dnsIpVersion = {};

(function (exports) {
	Object.defineProperty(exports, "__esModule", { value: true });
	exports.dnsLookupIpVersionToFamily = exports.isDnsLookupIpVersion = void 0;
	const conversionTable = {
	    auto: 0,
	    ipv4: 4,
	    ipv6: 6
	};
	exports.isDnsLookupIpVersion = (value) => {
	    return value in conversionTable;
	};
	exports.dnsLookupIpVersionToFamily = (dnsLookupIpVersion) => {
	    if (exports.isDnsLookupIpVersion(dnsLookupIpVersion)) {
	        return conversionTable[dnsLookupIpVersion];
	    }
	    throw new Error('Invalid DNS lookup IP version');
	};
} (dnsIpVersion));

var isResponseOk = {};

var hasRequiredIsResponseOk;

function requireIsResponseOk () {
	if (hasRequiredIsResponseOk) return isResponseOk;
	hasRequiredIsResponseOk = 1;
	Object.defineProperty(isResponseOk, "__esModule", { value: true });
	isResponseOk.isResponseOk = void 0;
	isResponseOk.isResponseOk = (response) => {
	    const { statusCode } = response;
	    const limitStatusCode = response.request.options.followRedirect ? 299 : 399;
	    return (statusCode >= 200 && statusCode <= limitStatusCode) || statusCode === 304;
	};
	return isResponseOk;
}

var deprecationWarning = {};

Object.defineProperty(deprecationWarning, "__esModule", { value: true });
const alreadyWarned = new Set();
deprecationWarning.default = (message) => {
    if (alreadyWarned.has(message)) {
        return;
    }
    alreadyWarned.add(message);
    // @ts-expect-error Missing types.
    process.emitWarning(`Got: ${message}`, {
        type: 'DeprecationWarning'
    });
};

var normalizeArguments$1 = {};

Object.defineProperty(normalizeArguments$1, "__esModule", { value: true });
const is_1$1 = dist.exports;
const normalizeArguments = (options, defaults) => {
    if (is_1$1.default.null_(options.encoding)) {
        throw new TypeError('To get a Buffer, set `options.responseType` to `buffer` instead');
    }
    is_1$1.assert.any([is_1$1.default.string, is_1$1.default.undefined], options.encoding);
    is_1$1.assert.any([is_1$1.default.boolean, is_1$1.default.undefined], options.resolveBodyOnly);
    is_1$1.assert.any([is_1$1.default.boolean, is_1$1.default.undefined], options.methodRewriting);
    is_1$1.assert.any([is_1$1.default.boolean, is_1$1.default.undefined], options.isStream);
    is_1$1.assert.any([is_1$1.default.string, is_1$1.default.undefined], options.responseType);
    // `options.responseType`
    if (options.responseType === undefined) {
        options.responseType = 'text';
    }
    // `options.retry`
    const { retry } = options;
    if (defaults) {
        options.retry = { ...defaults.retry };
    }
    else {
        options.retry = {
            calculateDelay: retryObject => retryObject.computedValue,
            limit: 0,
            methods: [],
            statusCodes: [],
            errorCodes: [],
            maxRetryAfter: undefined
        };
    }
    if (is_1$1.default.object(retry)) {
        options.retry = {
            ...options.retry,
            ...retry
        };
        options.retry.methods = [...new Set(options.retry.methods.map(method => method.toUpperCase()))];
        options.retry.statusCodes = [...new Set(options.retry.statusCodes)];
        options.retry.errorCodes = [...new Set(options.retry.errorCodes)];
    }
    else if (is_1$1.default.number(retry)) {
        options.retry.limit = retry;
    }
    if (is_1$1.default.undefined(options.retry.maxRetryAfter)) {
        options.retry.maxRetryAfter = Math.min(
        // TypeScript is not smart enough to handle `.filter(x => is.number(x))`.
        // eslint-disable-next-line unicorn/no-fn-reference-in-iterator
        ...[options.timeout.request, options.timeout.connect].filter(is_1$1.default.number));
    }
    // `options.pagination`
    if (is_1$1.default.object(options.pagination)) {
        if (defaults) {
            options.pagination = {
                ...defaults.pagination,
                ...options.pagination
            };
        }
        const { pagination } = options;
        if (!is_1$1.default.function_(pagination.transform)) {
            throw new Error('`options.pagination.transform` must be implemented');
        }
        if (!is_1$1.default.function_(pagination.shouldContinue)) {
            throw new Error('`options.pagination.shouldContinue` must be implemented');
        }
        if (!is_1$1.default.function_(pagination.filter)) {
            throw new TypeError('`options.pagination.filter` must be implemented');
        }
        if (!is_1$1.default.function_(pagination.paginate)) {
            throw new Error('`options.pagination.paginate` must be implemented');
        }
    }
    // JSON mode
    if (options.responseType === 'json' && options.headers.accept === undefined) {
        options.headers.accept = 'application/json';
    }
    return options;
};
normalizeArguments$1.default = normalizeArguments;

var calculateRetryDelay$1 = {};

Object.defineProperty(calculateRetryDelay$1, "__esModule", { value: true });
calculateRetryDelay$1.retryAfterStatusCodes = void 0;
calculateRetryDelay$1.retryAfterStatusCodes = new Set([413, 429, 503]);
const calculateRetryDelay = ({ attemptCount, retryOptions, error, retryAfter }) => {
    if (attemptCount > retryOptions.limit) {
        return 0;
    }
    const hasMethod = retryOptions.methods.includes(error.options.method);
    const hasErrorCode = retryOptions.errorCodes.includes(error.code);
    const hasStatusCode = error.response && retryOptions.statusCodes.includes(error.response.statusCode);
    if (!hasMethod || (!hasErrorCode && !hasStatusCode)) {
        return 0;
    }
    if (error.response) {
        if (retryAfter) {
            if (retryOptions.maxRetryAfter === undefined || retryAfter > retryOptions.maxRetryAfter) {
                return 0;
            }
            return retryAfter;
        }
        if (error.response.statusCode === 413) {
            return 0;
        }
    }
    const noise = Math.random() * 100;
    return ((2 ** (attemptCount - 1)) * 1000) + noise;
};
calculateRetryDelay$1.default = calculateRetryDelay;

(function (exports) {
	Object.defineProperty(exports, "__esModule", { value: true });
	exports.UnsupportedProtocolError = exports.ReadError = exports.TimeoutError = exports.UploadError = exports.CacheError = exports.HTTPError = exports.MaxRedirectsError = exports.RequestError = exports.setNonEnumerableProperties = exports.knownHookEvents = exports.withoutBody = exports.kIsNormalizedAlready = void 0;
	const util_1 = require$$1__default["default"];
	const stream_1 = require$$0__default$3["default"];
	const fs_1 = require$$0__default$2["default"];
	const url_1 = require$$0__default$6["default"];
	const http = require$$4__default["default"];
	const http_1 = require$$4__default["default"];
	const https = require$$1__default$3["default"];
	const http_timer_1 = source$3.exports;
	const cacheable_lookup_1 = source$1.exports;
	const CacheableRequest = src;
	const decompressResponse$1 = decompressResponse;
	// @ts-expect-error Missing types
	const http2wrapper = source;
	const lowercaseKeys = lowercaseKeys$2;
	const is_1 = dist.exports;
	const get_body_size_1 = getBodySize;
	const is_form_data_1 = isFormData;
	const proxy_events_1 = requireProxyEvents();
	const timed_out_1 = timedOut;
	const url_to_options_1 = urlToOptions;
	const options_to_url_1 = optionsToUrl;
	const weakable_map_1 = weakableMap;
	const get_buffer_1 = requireGetBuffer();
	const dns_ip_version_1 = dnsIpVersion;
	const is_response_ok_1 = requireIsResponseOk();
	const deprecation_warning_1 = deprecationWarning;
	const normalize_arguments_1 = normalizeArguments$1;
	const calculate_retry_delay_1 = calculateRetryDelay$1;
	let globalDnsCache;
	const kRequest = Symbol('request');
	const kResponse = Symbol('response');
	const kResponseSize = Symbol('responseSize');
	const kDownloadedSize = Symbol('downloadedSize');
	const kBodySize = Symbol('bodySize');
	const kUploadedSize = Symbol('uploadedSize');
	const kServerResponsesPiped = Symbol('serverResponsesPiped');
	const kUnproxyEvents = Symbol('unproxyEvents');
	const kIsFromCache = Symbol('isFromCache');
	const kCancelTimeouts = Symbol('cancelTimeouts');
	const kStartedReading = Symbol('startedReading');
	const kStopReading = Symbol('stopReading');
	const kTriggerRead = Symbol('triggerRead');
	const kBody = Symbol('body');
	const kJobs = Symbol('jobs');
	const kOriginalResponse = Symbol('originalResponse');
	const kRetryTimeout = Symbol('retryTimeout');
	exports.kIsNormalizedAlready = Symbol('isNormalizedAlready');
	const supportsBrotli = is_1.default.string(process.versions.brotli);
	exports.withoutBody = new Set(['GET', 'HEAD']);
	exports.knownHookEvents = [
	    'init',
	    'beforeRequest',
	    'beforeRedirect',
	    'beforeError',
	    'beforeRetry',
	    // Promise-Only
	    'afterResponse'
	];
	function validateSearchParameters(searchParameters) {
	    // eslint-disable-next-line guard-for-in
	    for (const key in searchParameters) {
	        const value = searchParameters[key];
	        if (!is_1.default.string(value) && !is_1.default.number(value) && !is_1.default.boolean(value) && !is_1.default.null_(value) && !is_1.default.undefined(value)) {
	            throw new TypeError(`The \`searchParams\` value '${String(value)}' must be a string, number, boolean or null`);
	        }
	    }
	}
	function isClientRequest(clientRequest) {
	    return is_1.default.object(clientRequest) && !('statusCode' in clientRequest);
	}
	const cacheableStore = new weakable_map_1.default();
	const waitForOpenFile = async (file) => new Promise((resolve, reject) => {
	    const onError = (error) => {
	        reject(error);
	    };
	    // Node.js 12 has incomplete types
	    if (!file.pending) {
	        resolve();
	    }
	    file.once('error', onError);
	    file.once('ready', () => {
	        file.off('error', onError);
	        resolve();
	    });
	});
	const redirectCodes = new Set([300, 301, 302, 303, 304, 307, 308]);
	const nonEnumerableProperties = [
	    'context',
	    'body',
	    'json',
	    'form'
	];
	exports.setNonEnumerableProperties = (sources, to) => {
	    // Non enumerable properties shall not be merged
	    const properties = {};
	    for (const source of sources) {
	        if (!source) {
	            continue;
	        }
	        for (const name of nonEnumerableProperties) {
	            if (!(name in source)) {
	                continue;
	            }
	            properties[name] = {
	                writable: true,
	                configurable: true,
	                enumerable: false,
	                // @ts-expect-error TS doesn't see the check above
	                value: source[name]
	            };
	        }
	    }
	    Object.defineProperties(to, properties);
	};
	/**
	An error to be thrown when a request fails.
	Contains a `code` property with error class code, like `ECONNREFUSED`.
	*/
	class RequestError extends Error {
	    constructor(message, error, self) {
	        var _a, _b;
	        super(message);
	        Error.captureStackTrace(this, this.constructor);
	        this.name = 'RequestError';
	        this.code = (_a = error.code) !== null && _a !== void 0 ? _a : 'ERR_GOT_REQUEST_ERROR';
	        if (self instanceof Request) {
	            Object.defineProperty(this, 'request', {
	                enumerable: false,
	                value: self
	            });
	            Object.defineProperty(this, 'response', {
	                enumerable: false,
	                value: self[kResponse]
	            });
	            Object.defineProperty(this, 'options', {
	                // This fails because of TS 3.7.2 useDefineForClassFields
	                // Ref: https://github.com/microsoft/TypeScript/issues/34972
	                enumerable: false,
	                value: self.options
	            });
	        }
	        else {
	            Object.defineProperty(this, 'options', {
	                // This fails because of TS 3.7.2 useDefineForClassFields
	                // Ref: https://github.com/microsoft/TypeScript/issues/34972
	                enumerable: false,
	                value: self
	            });
	        }
	        this.timings = (_b = this.request) === null || _b === void 0 ? void 0 : _b.timings;
	        // Recover the original stacktrace
	        if (is_1.default.string(error.stack) && is_1.default.string(this.stack)) {
	            const indexOfMessage = this.stack.indexOf(this.message) + this.message.length;
	            const thisStackTrace = this.stack.slice(indexOfMessage).split('\n').reverse();
	            const errorStackTrace = error.stack.slice(error.stack.indexOf(error.message) + error.message.length).split('\n').reverse();
	            // Remove duplicated traces
	            while (errorStackTrace.length !== 0 && errorStackTrace[0] === thisStackTrace[0]) {
	                thisStackTrace.shift();
	            }
	            this.stack = `${this.stack.slice(0, indexOfMessage)}${thisStackTrace.reverse().join('\n')}${errorStackTrace.reverse().join('\n')}`;
	        }
	    }
	}
	exports.RequestError = RequestError;
	/**
	An error to be thrown when the server redirects you more than ten times.
	Includes a `response` property.
	*/
	class MaxRedirectsError extends RequestError {
	    constructor(request) {
	        super(`Redirected ${request.options.maxRedirects} times. Aborting.`, {}, request);
	        this.name = 'MaxRedirectsError';
	        this.code = 'ERR_TOO_MANY_REDIRECTS';
	    }
	}
	exports.MaxRedirectsError = MaxRedirectsError;
	/**
	An error to be thrown when the server response code is not 2xx nor 3xx if `options.followRedirect` is `true`, but always except for 304.
	Includes a `response` property.
	*/
	class HTTPError extends RequestError {
	    constructor(response) {
	        super(`Response code ${response.statusCode} (${response.statusMessage})`, {}, response.request);
	        this.name = 'HTTPError';
	        this.code = 'ERR_NON_2XX_3XX_RESPONSE';
	    }
	}
	exports.HTTPError = HTTPError;
	/**
	An error to be thrown when a cache method fails.
	For example, if the database goes down or there's a filesystem error.
	*/
	class CacheError extends RequestError {
	    constructor(error, request) {
	        super(error.message, error, request);
	        this.name = 'CacheError';
	        this.code = this.code === 'ERR_GOT_REQUEST_ERROR' ? 'ERR_CACHE_ACCESS' : this.code;
	    }
	}
	exports.CacheError = CacheError;
	/**
	An error to be thrown when the request body is a stream and an error occurs while reading from that stream.
	*/
	class UploadError extends RequestError {
	    constructor(error, request) {
	        super(error.message, error, request);
	        this.name = 'UploadError';
	        this.code = this.code === 'ERR_GOT_REQUEST_ERROR' ? 'ERR_UPLOAD' : this.code;
	    }
	}
	exports.UploadError = UploadError;
	/**
	An error to be thrown when the request is aborted due to a timeout.
	Includes an `event` and `timings` property.
	*/
	class TimeoutError extends RequestError {
	    constructor(error, timings, request) {
	        super(error.message, error, request);
	        this.name = 'TimeoutError';
	        this.event = error.event;
	        this.timings = timings;
	    }
	}
	exports.TimeoutError = TimeoutError;
	/**
	An error to be thrown when reading from response stream fails.
	*/
	class ReadError extends RequestError {
	    constructor(error, request) {
	        super(error.message, error, request);
	        this.name = 'ReadError';
	        this.code = this.code === 'ERR_GOT_REQUEST_ERROR' ? 'ERR_READING_RESPONSE_STREAM' : this.code;
	    }
	}
	exports.ReadError = ReadError;
	/**
	An error to be thrown when given an unsupported protocol.
	*/
	class UnsupportedProtocolError extends RequestError {
	    constructor(options) {
	        super(`Unsupported protocol "${options.url.protocol}"`, {}, options);
	        this.name = 'UnsupportedProtocolError';
	        this.code = 'ERR_UNSUPPORTED_PROTOCOL';
	    }
	}
	exports.UnsupportedProtocolError = UnsupportedProtocolError;
	const proxiedRequestEvents = [
	    'socket',
	    'connect',
	    'continue',
	    'information',
	    'upgrade',
	    'timeout'
	];
	class Request extends stream_1.Duplex {
	    constructor(url, options = {}, defaults) {
	        super({
	            // This must be false, to enable throwing after destroy
	            // It is used for retry logic in Promise API
	            autoDestroy: false,
	            // It needs to be zero because we're just proxying the data to another stream
	            highWaterMark: 0
	        });
	        this[kDownloadedSize] = 0;
	        this[kUploadedSize] = 0;
	        this.requestInitialized = false;
	        this[kServerResponsesPiped] = new Set();
	        this.redirects = [];
	        this[kStopReading] = false;
	        this[kTriggerRead] = false;
	        this[kJobs] = [];
	        this.retryCount = 0;
	        // TODO: Remove this when targeting Node.js >= 12
	        this._progressCallbacks = [];
	        const unlockWrite = () => this._unlockWrite();
	        const lockWrite = () => this._lockWrite();
	        this.on('pipe', (source) => {
	            source.prependListener('data', unlockWrite);
	            source.on('data', lockWrite);
	            source.prependListener('end', unlockWrite);
	            source.on('end', lockWrite);
	        });
	        this.on('unpipe', (source) => {
	            source.off('data', unlockWrite);
	            source.off('data', lockWrite);
	            source.off('end', unlockWrite);
	            source.off('end', lockWrite);
	        });
	        this.on('pipe', source => {
	            if (source instanceof http_1.IncomingMessage) {
	                this.options.headers = {
	                    ...source.headers,
	                    ...this.options.headers
	                };
	            }
	        });
	        const { json, body, form } = options;
	        if (json || body || form) {
	            this._lockWrite();
	        }
	        if (exports.kIsNormalizedAlready in options) {
	            this.options = options;
	        }
	        else {
	            try {
	                // @ts-expect-error Common TypeScript bug saying that `this.constructor` is not accessible
	                this.options = this.constructor.normalizeArguments(url, options, defaults);
	            }
	            catch (error) {
	                // TODO: Move this to `_destroy()`
	                if (is_1.default.nodeStream(options.body)) {
	                    options.body.destroy();
	                }
	                this.destroy(error);
	                return;
	            }
	        }
	        (async () => {
	            var _a;
	            try {
	                if (this.options.body instanceof fs_1.ReadStream) {
	                    await waitForOpenFile(this.options.body);
	                }
	                const { url: normalizedURL } = this.options;
	                if (!normalizedURL) {
	                    throw new TypeError('Missing `url` property');
	                }
	                this.requestUrl = normalizedURL.toString();
	                decodeURI(this.requestUrl);
	                await this._finalizeBody();
	                await this._makeRequest();
	                if (this.destroyed) {
	                    (_a = this[kRequest]) === null || _a === void 0 ? void 0 : _a.destroy();
	                    return;
	                }
	                // Queued writes etc.
	                for (const job of this[kJobs]) {
	                    job();
	                }
	                // Prevent memory leak
	                this[kJobs].length = 0;
	                this.requestInitialized = true;
	            }
	            catch (error) {
	                if (error instanceof RequestError) {
	                    this._beforeError(error);
	                    return;
	                }
	                // This is a workaround for https://github.com/nodejs/node/issues/33335
	                if (!this.destroyed) {
	                    this.destroy(error);
	                }
	            }
	        })();
	    }
	    static normalizeArguments(url, options, defaults) {
	        var _a, _b, _c, _d, _e;
	        const rawOptions = options;
	        if (is_1.default.object(url) && !is_1.default.urlInstance(url)) {
	            options = { ...defaults, ...url, ...options };
	        }
	        else {
	            if (url && options && options.url !== undefined) {
	                throw new TypeError('The `url` option is mutually exclusive with the `input` argument');
	            }
	            options = { ...defaults, ...options };
	            if (url !== undefined) {
	                options.url = url;
	            }
	            if (is_1.default.urlInstance(options.url)) {
	                options.url = new url_1.URL(options.url.toString());
	            }
	        }
	        // TODO: Deprecate URL options in Got 12.
	        // Support extend-specific options
	        if (options.cache === false) {
	            options.cache = undefined;
	        }
	        if (options.dnsCache === false) {
	            options.dnsCache = undefined;
	        }
	        // Nice type assertions
	        is_1.assert.any([is_1.default.string, is_1.default.undefined], options.method);
	        is_1.assert.any([is_1.default.object, is_1.default.undefined], options.headers);
	        is_1.assert.any([is_1.default.string, is_1.default.urlInstance, is_1.default.undefined], options.prefixUrl);
	        is_1.assert.any([is_1.default.object, is_1.default.undefined], options.cookieJar);
	        is_1.assert.any([is_1.default.object, is_1.default.string, is_1.default.undefined], options.searchParams);
	        is_1.assert.any([is_1.default.object, is_1.default.string, is_1.default.undefined], options.cache);
	        is_1.assert.any([is_1.default.object, is_1.default.number, is_1.default.undefined], options.timeout);
	        is_1.assert.any([is_1.default.object, is_1.default.undefined], options.context);
	        is_1.assert.any([is_1.default.object, is_1.default.undefined], options.hooks);
	        is_1.assert.any([is_1.default.boolean, is_1.default.undefined], options.decompress);
	        is_1.assert.any([is_1.default.boolean, is_1.default.undefined], options.ignoreInvalidCookies);
	        is_1.assert.any([is_1.default.boolean, is_1.default.undefined], options.followRedirect);
	        is_1.assert.any([is_1.default.number, is_1.default.undefined], options.maxRedirects);
	        is_1.assert.any([is_1.default.boolean, is_1.default.undefined], options.throwHttpErrors);
	        is_1.assert.any([is_1.default.boolean, is_1.default.undefined], options.http2);
	        is_1.assert.any([is_1.default.boolean, is_1.default.undefined], options.allowGetBody);
	        is_1.assert.any([is_1.default.string, is_1.default.undefined], options.localAddress);
	        is_1.assert.any([dns_ip_version_1.isDnsLookupIpVersion, is_1.default.undefined], options.dnsLookupIpVersion);
	        is_1.assert.any([is_1.default.object, is_1.default.undefined], options.https);
	        is_1.assert.any([is_1.default.boolean, is_1.default.undefined], options.rejectUnauthorized);
	        if (options.https) {
	            is_1.assert.any([is_1.default.boolean, is_1.default.undefined], options.https.rejectUnauthorized);
	            is_1.assert.any([is_1.default.function_, is_1.default.undefined], options.https.checkServerIdentity);
	            is_1.assert.any([is_1.default.string, is_1.default.object, is_1.default.array, is_1.default.undefined], options.https.certificateAuthority);
	            is_1.assert.any([is_1.default.string, is_1.default.object, is_1.default.array, is_1.default.undefined], options.https.key);
	            is_1.assert.any([is_1.default.string, is_1.default.object, is_1.default.array, is_1.default.undefined], options.https.certificate);
	            is_1.assert.any([is_1.default.string, is_1.default.undefined], options.https.passphrase);
	            is_1.assert.any([is_1.default.string, is_1.default.buffer, is_1.default.array, is_1.default.undefined], options.https.pfx);
	        }
	        is_1.assert.any([is_1.default.object, is_1.default.undefined], options.cacheOptions);
	        // `options.method`
	        if (is_1.default.string(options.method)) {
	            options.method = options.method.toUpperCase();
	        }
	        else {
	            options.method = 'GET';
	        }
	        // `options.headers`
	        if (options.headers === (defaults === null || defaults === void 0 ? void 0 : defaults.headers)) {
	            options.headers = { ...options.headers };
	        }
	        else {
	            options.headers = lowercaseKeys({ ...(defaults === null || defaults === void 0 ? void 0 : defaults.headers), ...options.headers });
	        }
	        // Disallow legacy `url.Url`
	        if ('slashes' in options) {
	            throw new TypeError('The legacy `url.Url` has been deprecated. Use `URL` instead.');
	        }
	        // `options.auth`
	        if ('auth' in options) {
	            throw new TypeError('Parameter `auth` is deprecated. Use `username` / `password` instead.');
	        }
	        // `options.searchParams`
	        if ('searchParams' in options) {
	            if (options.searchParams && options.searchParams !== (defaults === null || defaults === void 0 ? void 0 : defaults.searchParams)) {
	                let searchParameters;
	                if (is_1.default.string(options.searchParams) || (options.searchParams instanceof url_1.URLSearchParams)) {
	                    searchParameters = new url_1.URLSearchParams(options.searchParams);
	                }
	                else {
	                    validateSearchParameters(options.searchParams);
	                    searchParameters = new url_1.URLSearchParams();
	                    // eslint-disable-next-line guard-for-in
	                    for (const key in options.searchParams) {
	                        const value = options.searchParams[key];
	                        if (value === null) {
	                            searchParameters.append(key, '');
	                        }
	                        else if (value !== undefined) {
	                            searchParameters.append(key, value);
	                        }
	                    }
	                }
	                // `normalizeArguments()` is also used to merge options
	                (_a = defaults === null || defaults === void 0 ? void 0 : defaults.searchParams) === null || _a === void 0 ? void 0 : _a.forEach((value, key) => {
	                    // Only use default if one isn't already defined
	                    if (!searchParameters.has(key)) {
	                        searchParameters.append(key, value);
	                    }
	                });
	                options.searchParams = searchParameters;
	            }
	        }
	        // `options.username` & `options.password`
	        options.username = (_b = options.username) !== null && _b !== void 0 ? _b : '';
	        options.password = (_c = options.password) !== null && _c !== void 0 ? _c : '';
	        // `options.prefixUrl` & `options.url`
	        if (is_1.default.undefined(options.prefixUrl)) {
	            options.prefixUrl = (_d = defaults === null || defaults === void 0 ? void 0 : defaults.prefixUrl) !== null && _d !== void 0 ? _d : '';
	        }
	        else {
	            options.prefixUrl = options.prefixUrl.toString();
	            if (options.prefixUrl !== '' && !options.prefixUrl.endsWith('/')) {
	                options.prefixUrl += '/';
	            }
	        }
	        if (is_1.default.string(options.url)) {
	            if (options.url.startsWith('/')) {
	                throw new Error('`input` must not start with a slash when using `prefixUrl`');
	            }
	            options.url = options_to_url_1.default(options.prefixUrl + options.url, options);
	        }
	        else if ((is_1.default.undefined(options.url) && options.prefixUrl !== '') || options.protocol) {
	            options.url = options_to_url_1.default(options.prefixUrl, options);
	        }
	        if (options.url) {
	            if ('port' in options) {
	                delete options.port;
	            }
	            // Make it possible to change `options.prefixUrl`
	            let { prefixUrl } = options;
	            Object.defineProperty(options, 'prefixUrl', {
	                set: (value) => {
	                    const url = options.url;
	                    if (!url.href.startsWith(value)) {
	                        throw new Error(`Cannot change \`prefixUrl\` from ${prefixUrl} to ${value}: ${url.href}`);
	                    }
	                    options.url = new url_1.URL(value + url.href.slice(prefixUrl.length));
	                    prefixUrl = value;
	                },
	                get: () => prefixUrl
	            });
	            // Support UNIX sockets
	            let { protocol } = options.url;
	            if (protocol === 'unix:') {
	                protocol = 'http:';
	                options.url = new url_1.URL(`http://unix${options.url.pathname}${options.url.search}`);
	            }
	            // Set search params
	            if (options.searchParams) {
	                // eslint-disable-next-line @typescript-eslint/no-base-to-string
	                options.url.search = options.searchParams.toString();
	            }
	            // Protocol check
	            if (protocol !== 'http:' && protocol !== 'https:') {
	                throw new UnsupportedProtocolError(options);
	            }
	            // Update `username`
	            if (options.username === '') {
	                options.username = options.url.username;
	            }
	            else {
	                options.url.username = options.username;
	            }
	            // Update `password`
	            if (options.password === '') {
	                options.password = options.url.password;
	            }
	            else {
	                options.url.password = options.password;
	            }
	        }
	        // `options.cookieJar`
	        const { cookieJar } = options;
	        if (cookieJar) {
	            let { setCookie, getCookieString } = cookieJar;
	            is_1.assert.function_(setCookie);
	            is_1.assert.function_(getCookieString);
	            /* istanbul ignore next: Horrible `tough-cookie` v3 check */
	            if (setCookie.length === 4 && getCookieString.length === 0) {
	                setCookie = util_1.promisify(setCookie.bind(options.cookieJar));
	                getCookieString = util_1.promisify(getCookieString.bind(options.cookieJar));
	                options.cookieJar = {
	                    setCookie,
	                    getCookieString: getCookieString
	                };
	            }
	        }
	        // `options.cache`
	        const { cache } = options;
	        if (cache) {
	            if (!cacheableStore.has(cache)) {
	                cacheableStore.set(cache, new CacheableRequest(((requestOptions, handler) => {
	                    const result = requestOptions[kRequest](requestOptions, handler);
	                    // TODO: remove this when `cacheable-request` supports async request functions.
	                    if (is_1.default.promise(result)) {
	                        // @ts-expect-error
	                        // We only need to implement the error handler in order to support HTTP2 caching.
	                        // The result will be a promise anyway.
	                        result.once = (event, handler) => {
	                            if (event === 'error') {
	                                result.catch(handler);
	                            }
	                            else if (event === 'abort') {
	                                // The empty catch is needed here in case when
	                                // it rejects before it's `await`ed in `_makeRequest`.
	                                (async () => {
	                                    try {
	                                        const request = (await result);
	                                        request.once('abort', handler);
	                                    }
	                                    catch (_a) { }
	                                })();
	                            }
	                            else {
	                                /* istanbul ignore next: safety check */
	                                throw new Error(`Unknown HTTP2 promise event: ${event}`);
	                            }
	                            return result;
	                        };
	                    }
	                    return result;
	                }), cache));
	            }
	        }
	        // `options.cacheOptions`
	        options.cacheOptions = { ...options.cacheOptions };
	        // `options.dnsCache`
	        if (options.dnsCache === true) {
	            if (!globalDnsCache) {
	                globalDnsCache = new cacheable_lookup_1.default();
	            }
	            options.dnsCache = globalDnsCache;
	        }
	        else if (!is_1.default.undefined(options.dnsCache) && !options.dnsCache.lookup) {
	            throw new TypeError(`Parameter \`dnsCache\` must be a CacheableLookup instance or a boolean, got ${is_1.default(options.dnsCache)}`);
	        }
	        // `options.timeout`
	        if (is_1.default.number(options.timeout)) {
	            options.timeout = { request: options.timeout };
	        }
	        else if (defaults && options.timeout !== defaults.timeout) {
	            options.timeout = {
	                ...defaults.timeout,
	                ...options.timeout
	            };
	        }
	        else {
	            options.timeout = { ...options.timeout };
	        }
	        // `options.context`
	        if (!options.context) {
	            options.context = {};
	        }
	        // `options.hooks`
	        const areHooksDefault = options.hooks === (defaults === null || defaults === void 0 ? void 0 : defaults.hooks);
	        options.hooks = { ...options.hooks };
	        for (const event of exports.knownHookEvents) {
	            if (event in options.hooks) {
	                if (is_1.default.array(options.hooks[event])) {
	                    // See https://github.com/microsoft/TypeScript/issues/31445#issuecomment-576929044
	                    options.hooks[event] = [...options.hooks[event]];
	                }
	                else {
	                    throw new TypeError(`Parameter \`${event}\` must be an Array, got ${is_1.default(options.hooks[event])}`);
	                }
	            }
	            else {
	                options.hooks[event] = [];
	            }
	        }
	        if (defaults && !areHooksDefault) {
	            for (const event of exports.knownHookEvents) {
	                const defaultHooks = defaults.hooks[event];
	                if (defaultHooks.length > 0) {
	                    // See https://github.com/microsoft/TypeScript/issues/31445#issuecomment-576929044
	                    options.hooks[event] = [
	                        ...defaults.hooks[event],
	                        ...options.hooks[event]
	                    ];
	                }
	            }
	        }
	        // DNS options
	        if ('family' in options) {
	            deprecation_warning_1.default('"options.family" was never documented, please use "options.dnsLookupIpVersion"');
	        }
	        // HTTPS options
	        if (defaults === null || defaults === void 0 ? void 0 : defaults.https) {
	            options.https = { ...defaults.https, ...options.https };
	        }
	        if ('rejectUnauthorized' in options) {
	            deprecation_warning_1.default('"options.rejectUnauthorized" is now deprecated, please use "options.https.rejectUnauthorized"');
	        }
	        if ('checkServerIdentity' in options) {
	            deprecation_warning_1.default('"options.checkServerIdentity" was never documented, please use "options.https.checkServerIdentity"');
	        }
	        if ('ca' in options) {
	            deprecation_warning_1.default('"options.ca" was never documented, please use "options.https.certificateAuthority"');
	        }
	        if ('key' in options) {
	            deprecation_warning_1.default('"options.key" was never documented, please use "options.https.key"');
	        }
	        if ('cert' in options) {
	            deprecation_warning_1.default('"options.cert" was never documented, please use "options.https.certificate"');
	        }
	        if ('passphrase' in options) {
	            deprecation_warning_1.default('"options.passphrase" was never documented, please use "options.https.passphrase"');
	        }
	        if ('pfx' in options) {
	            deprecation_warning_1.default('"options.pfx" was never documented, please use "options.https.pfx"');
	        }
	        // Other options
	        if ('followRedirects' in options) {
	            throw new TypeError('The `followRedirects` option does not exist. Use `followRedirect` instead.');
	        }
	        if (options.agent) {
	            for (const key in options.agent) {
	                if (key !== 'http' && key !== 'https' && key !== 'http2') {
	                    throw new TypeError(`Expected the \`options.agent\` properties to be \`http\`, \`https\` or \`http2\`, got \`${key}\``);
	                }
	            }
	        }
	        options.maxRedirects = (_e = options.maxRedirects) !== null && _e !== void 0 ? _e : 0;
	        // Set non-enumerable properties
	        exports.setNonEnumerableProperties([defaults, rawOptions], options);
	        return normalize_arguments_1.default(options, defaults);
	    }
	    _lockWrite() {
	        const onLockedWrite = () => {
	            throw new TypeError('The payload has been already provided');
	        };
	        this.write = onLockedWrite;
	        this.end = onLockedWrite;
	    }
	    _unlockWrite() {
	        this.write = super.write;
	        this.end = super.end;
	    }
	    async _finalizeBody() {
	        const { options } = this;
	        const { headers } = options;
	        const isForm = !is_1.default.undefined(options.form);
	        const isJSON = !is_1.default.undefined(options.json);
	        const isBody = !is_1.default.undefined(options.body);
	        const hasPayload = isForm || isJSON || isBody;
	        const cannotHaveBody = exports.withoutBody.has(options.method) && !(options.method === 'GET' && options.allowGetBody);
	        this._cannotHaveBody = cannotHaveBody;
	        if (hasPayload) {
	            if (cannotHaveBody) {
	                throw new TypeError(`The \`${options.method}\` method cannot be used with a body`);
	            }
	            if ([isBody, isForm, isJSON].filter(isTrue => isTrue).length > 1) {
	                throw new TypeError('The `body`, `json` and `form` options are mutually exclusive');
	            }
	            if (isBody &&
	                !(options.body instanceof stream_1.Readable) &&
	                !is_1.default.string(options.body) &&
	                !is_1.default.buffer(options.body) &&
	                !is_form_data_1.default(options.body)) {
	                throw new TypeError('The `body` option must be a stream.Readable, string or Buffer');
	            }
	            if (isForm && !is_1.default.object(options.form)) {
	                throw new TypeError('The `form` option must be an Object');
	            }
	            {
	                // Serialize body
	                const noContentType = !is_1.default.string(headers['content-type']);
	                if (isBody) {
	                    // Special case for https://github.com/form-data/form-data
	                    if (is_form_data_1.default(options.body) && noContentType) {
	                        headers['content-type'] = `multipart/form-data; boundary=${options.body.getBoundary()}`;
	                    }
	                    this[kBody] = options.body;
	                }
	                else if (isForm) {
	                    if (noContentType) {
	                        headers['content-type'] = 'application/x-www-form-urlencoded';
	                    }
	                    this[kBody] = (new url_1.URLSearchParams(options.form)).toString();
	                }
	                else {
	                    if (noContentType) {
	                        headers['content-type'] = 'application/json';
	                    }
	                    this[kBody] = options.stringifyJson(options.json);
	                }
	                const uploadBodySize = await get_body_size_1.default(this[kBody], options.headers);
	                // See https://tools.ietf.org/html/rfc7230#section-3.3.2
	                // A user agent SHOULD send a Content-Length in a request message when
	                // no Transfer-Encoding is sent and the request method defines a meaning
	                // for an enclosed payload body.  For example, a Content-Length header
	                // field is normally sent in a POST request even when the value is 0
	                // (indicating an empty payload body).  A user agent SHOULD NOT send a
	                // Content-Length header field when the request message does not contain
	                // a payload body and the method semantics do not anticipate such a
	                // body.
	                if (is_1.default.undefined(headers['content-length']) && is_1.default.undefined(headers['transfer-encoding'])) {
	                    if (!cannotHaveBody && !is_1.default.undefined(uploadBodySize)) {
	                        headers['content-length'] = String(uploadBodySize);
	                    }
	                }
	            }
	        }
	        else if (cannotHaveBody) {
	            this._lockWrite();
	        }
	        else {
	            this._unlockWrite();
	        }
	        this[kBodySize] = Number(headers['content-length']) || undefined;
	    }
	    async _onResponseBase(response) {
	        const { options } = this;
	        const { url } = options;
	        this[kOriginalResponse] = response;
	        if (options.decompress) {
	            response = decompressResponse$1(response);
	        }
	        const statusCode = response.statusCode;
	        const typedResponse = response;
	        typedResponse.statusMessage = typedResponse.statusMessage ? typedResponse.statusMessage : http.STATUS_CODES[statusCode];
	        typedResponse.url = options.url.toString();
	        typedResponse.requestUrl = this.requestUrl;
	        typedResponse.redirectUrls = this.redirects;
	        typedResponse.request = this;
	        typedResponse.isFromCache = response.fromCache || false;
	        typedResponse.ip = this.ip;
	        typedResponse.retryCount = this.retryCount;
	        this[kIsFromCache] = typedResponse.isFromCache;
	        this[kResponseSize] = Number(response.headers['content-length']) || undefined;
	        this[kResponse] = response;
	        response.once('end', () => {
	            this[kResponseSize] = this[kDownloadedSize];
	            this.emit('downloadProgress', this.downloadProgress);
	        });
	        response.once('error', (error) => {
	            // Force clean-up, because some packages don't do this.
	            // TODO: Fix decompress-response
	            response.destroy();
	            this._beforeError(new ReadError(error, this));
	        });
	        response.once('aborted', () => {
	            this._beforeError(new ReadError({
	                name: 'Error',
	                message: 'The server aborted pending request',
	                code: 'ECONNRESET'
	            }, this));
	        });
	        this.emit('downloadProgress', this.downloadProgress);
	        const rawCookies = response.headers['set-cookie'];
	        if (is_1.default.object(options.cookieJar) && rawCookies) {
	            let promises = rawCookies.map(async (rawCookie) => options.cookieJar.setCookie(rawCookie, url.toString()));
	            if (options.ignoreInvalidCookies) {
	                promises = promises.map(async (p) => p.catch(() => { }));
	            }
	            try {
	                await Promise.all(promises);
	            }
	            catch (error) {
	                this._beforeError(error);
	                return;
	            }
	        }
	        if (options.followRedirect && response.headers.location && redirectCodes.has(statusCode)) {
	            // We're being redirected, we don't care about the response.
	            // It'd be best to abort the request, but we can't because
	            // we would have to sacrifice the TCP connection. We don't want that.
	            response.resume();
	            if (this[kRequest]) {
	                this[kCancelTimeouts]();
	                // eslint-disable-next-line @typescript-eslint/no-dynamic-delete
	                delete this[kRequest];
	                this[kUnproxyEvents]();
	            }
	            const shouldBeGet = statusCode === 303 && options.method !== 'GET' && options.method !== 'HEAD';
	            if (shouldBeGet || !options.methodRewriting) {
	                // Server responded with "see other", indicating that the resource exists at another location,
	                // and the client should request it from that location via GET or HEAD.
	                options.method = 'GET';
	                if ('body' in options) {
	                    delete options.body;
	                }
	                if ('json' in options) {
	                    delete options.json;
	                }
	                if ('form' in options) {
	                    delete options.form;
	                }
	                this[kBody] = undefined;
	                delete options.headers['content-length'];
	            }
	            if (this.redirects.length >= options.maxRedirects) {
	                this._beforeError(new MaxRedirectsError(this));
	                return;
	            }
	            try {
	                // Do not remove. See https://github.com/sindresorhus/got/pull/214
	                const redirectBuffer = Buffer.from(response.headers.location, 'binary').toString();
	                // Handles invalid URLs. See https://github.com/sindresorhus/got/issues/604
	                const redirectUrl = new url_1.URL(redirectBuffer, url);
	                const redirectString = redirectUrl.toString();
	                decodeURI(redirectString);
	                // eslint-disable-next-line no-inner-declarations
	                function isUnixSocketURL(url) {
	                    return url.protocol === 'unix:' || url.hostname === 'unix';
	                }
	                if (!isUnixSocketURL(url) && isUnixSocketURL(redirectUrl)) {
	                    this._beforeError(new RequestError('Cannot redirect to UNIX socket', {}, this));
	                    return;
	                }
	                // Redirecting to a different site, clear sensitive data.
	                if (redirectUrl.hostname !== url.hostname || redirectUrl.port !== url.port) {
	                    if ('host' in options.headers) {
	                        delete options.headers.host;
	                    }
	                    if ('cookie' in options.headers) {
	                        delete options.headers.cookie;
	                    }
	                    if ('authorization' in options.headers) {
	                        delete options.headers.authorization;
	                    }
	                    if (options.username || options.password) {
	                        options.username = '';
	                        options.password = '';
	                    }
	                }
	                else {
	                    redirectUrl.username = options.username;
	                    redirectUrl.password = options.password;
	                }
	                this.redirects.push(redirectString);
	                options.url = redirectUrl;
	                for (const hook of options.hooks.beforeRedirect) {
	                    // eslint-disable-next-line no-await-in-loop
	                    await hook(options, typedResponse);
	                }
	                this.emit('redirect', typedResponse, options);
	                await this._makeRequest();
	            }
	            catch (error) {
	                this._beforeError(error);
	                return;
	            }
	            return;
	        }
	        if (options.isStream && options.throwHttpErrors && !is_response_ok_1.isResponseOk(typedResponse)) {
	            this._beforeError(new HTTPError(typedResponse));
	            return;
	        }
	        response.on('readable', () => {
	            if (this[kTriggerRead]) {
	                this._read();
	            }
	        });
	        this.on('resume', () => {
	            response.resume();
	        });
	        this.on('pause', () => {
	            response.pause();
	        });
	        response.once('end', () => {
	            this.push(null);
	        });
	        this.emit('response', response);
	        for (const destination of this[kServerResponsesPiped]) {
	            if (destination.headersSent) {
	                continue;
	            }
	            // eslint-disable-next-line guard-for-in
	            for (const key in response.headers) {
	                const isAllowed = options.decompress ? key !== 'content-encoding' : true;
	                const value = response.headers[key];
	                if (isAllowed) {
	                    destination.setHeader(key, value);
	                }
	            }
	            destination.statusCode = statusCode;
	        }
	    }
	    async _onResponse(response) {
	        try {
	            await this._onResponseBase(response);
	        }
	        catch (error) {
	            /* istanbul ignore next: better safe than sorry */
	            this._beforeError(error);
	        }
	    }
	    _onRequest(request) {
	        const { options } = this;
	        const { timeout, url } = options;
	        http_timer_1.default(request);
	        this[kCancelTimeouts] = timed_out_1.default(request, timeout, url);
	        const responseEventName = options.cache ? 'cacheableResponse' : 'response';
	        request.once(responseEventName, (response) => {
	            void this._onResponse(response);
	        });
	        request.once('error', (error) => {
	            var _a;
	            // Force clean-up, because some packages (e.g. nock) don't do this.
	            request.destroy();
	            // Node.js <= 12.18.2 mistakenly emits the response `end` first.
	            (_a = request.res) === null || _a === void 0 ? void 0 : _a.removeAllListeners('end');
	            error = error instanceof timed_out_1.TimeoutError ? new TimeoutError(error, this.timings, this) : new RequestError(error.message, error, this);
	            this._beforeError(error);
	        });
	        this[kUnproxyEvents] = proxy_events_1.default(request, this, proxiedRequestEvents);
	        this[kRequest] = request;
	        this.emit('uploadProgress', this.uploadProgress);
	        // Send body
	        const body = this[kBody];
	        const currentRequest = this.redirects.length === 0 ? this : request;
	        if (is_1.default.nodeStream(body)) {
	            body.pipe(currentRequest);
	            body.once('error', (error) => {
	                this._beforeError(new UploadError(error, this));
	            });
	        }
	        else {
	            this._unlockWrite();
	            if (!is_1.default.undefined(body)) {
	                this._writeRequest(body, undefined, () => { });
	                currentRequest.end();
	                this._lockWrite();
	            }
	            else if (this._cannotHaveBody || this._noPipe) {
	                currentRequest.end();
	                this._lockWrite();
	            }
	        }
	        this.emit('request', request);
	    }
	    async _createCacheableRequest(url, options) {
	        return new Promise((resolve, reject) => {
	            // TODO: Remove `utils/url-to-options.ts` when `cacheable-request` is fixed
	            Object.assign(options, url_to_options_1.default(url));
	            // `http-cache-semantics` checks this
	            // TODO: Fix this ignore.
	            // @ts-expect-error
	            delete options.url;
	            let request;
	            // This is ugly
	            const cacheRequest = cacheableStore.get(options.cache)(options, async (response) => {
	                // TODO: Fix `cacheable-response`
	                response._readableState.autoDestroy = false;
	                if (request) {
	                    (await request).emit('cacheableResponse', response);
	                }
	                resolve(response);
	            });
	            // Restore options
	            options.url = url;
	            cacheRequest.once('error', reject);
	            cacheRequest.once('request', async (requestOrPromise) => {
	                request = requestOrPromise;
	                resolve(request);
	            });
	        });
	    }
	    async _makeRequest() {
	        var _a, _b, _c, _d, _e;
	        const { options } = this;
	        const { headers } = options;
	        for (const key in headers) {
	            if (is_1.default.undefined(headers[key])) {
	                // eslint-disable-next-line @typescript-eslint/no-dynamic-delete
	                delete headers[key];
	            }
	            else if (is_1.default.null_(headers[key])) {
	                throw new TypeError(`Use \`undefined\` instead of \`null\` to delete the \`${key}\` header`);
	            }
	        }
	        if (options.decompress && is_1.default.undefined(headers['accept-encoding'])) {
	            headers['accept-encoding'] = supportsBrotli ? 'gzip, deflate, br' : 'gzip, deflate';
	        }
	        // Set cookies
	        if (options.cookieJar) {
	            const cookieString = await options.cookieJar.getCookieString(options.url.toString());
	            if (is_1.default.nonEmptyString(cookieString)) {
	                options.headers.cookie = cookieString;
	            }
	        }
	        for (const hook of options.hooks.beforeRequest) {
	            // eslint-disable-next-line no-await-in-loop
	            const result = await hook(options);
	            if (!is_1.default.undefined(result)) {
	                // @ts-expect-error Skip the type mismatch to support abstract responses
	                options.request = () => result;
	                break;
	            }
	        }
	        if (options.body && this[kBody] !== options.body) {
	            this[kBody] = options.body;
	        }
	        const { agent, request, timeout, url } = options;
	        if (options.dnsCache && !('lookup' in options)) {
	            options.lookup = options.dnsCache.lookup;
	        }
	        // UNIX sockets
	        if (url.hostname === 'unix') {
	            const matches = /(?<socketPath>.+?):(?<path>.+)/.exec(`${url.pathname}${url.search}`);
	            if (matches === null || matches === void 0 ? void 0 : matches.groups) {
	                const { socketPath, path } = matches.groups;
	                Object.assign(options, {
	                    socketPath,
	                    path,
	                    host: ''
	                });
	            }
	        }
	        const isHttps = url.protocol === 'https:';
	        // Fallback function
	        let fallbackFn;
	        if (options.http2) {
	            fallbackFn = http2wrapper.auto;
	        }
	        else {
	            fallbackFn = isHttps ? https.request : http.request;
	        }
	        const realFn = (_a = options.request) !== null && _a !== void 0 ? _a : fallbackFn;
	        // Cache support
	        const fn = options.cache ? this._createCacheableRequest : realFn;
	        // Pass an agent directly when HTTP2 is disabled
	        if (agent && !options.http2) {
	            options.agent = agent[isHttps ? 'https' : 'http'];
	        }
	        // Prepare plain HTTP request options
	        options[kRequest] = realFn;
	        delete options.request;
	        // TODO: Fix this ignore.
	        // @ts-expect-error
	        delete options.timeout;
	        const requestOptions = options;
	        requestOptions.shared = (_b = options.cacheOptions) === null || _b === void 0 ? void 0 : _b.shared;
	        requestOptions.cacheHeuristic = (_c = options.cacheOptions) === null || _c === void 0 ? void 0 : _c.cacheHeuristic;
	        requestOptions.immutableMinTimeToLive = (_d = options.cacheOptions) === null || _d === void 0 ? void 0 : _d.immutableMinTimeToLive;
	        requestOptions.ignoreCargoCult = (_e = options.cacheOptions) === null || _e === void 0 ? void 0 : _e.ignoreCargoCult;
	        // If `dnsLookupIpVersion` is not present do not override `family`
	        if (options.dnsLookupIpVersion !== undefined) {
	            try {
	                requestOptions.family = dns_ip_version_1.dnsLookupIpVersionToFamily(options.dnsLookupIpVersion);
	            }
	            catch (_f) {
	                throw new Error('Invalid `dnsLookupIpVersion` option value');
	            }
	        }
	        // HTTPS options remapping
	        if (options.https) {
	            if ('rejectUnauthorized' in options.https) {
	                requestOptions.rejectUnauthorized = options.https.rejectUnauthorized;
	            }
	            if (options.https.checkServerIdentity) {
	                requestOptions.checkServerIdentity = options.https.checkServerIdentity;
	            }
	            if (options.https.certificateAuthority) {
	                requestOptions.ca = options.https.certificateAuthority;
	            }
	            if (options.https.certificate) {
	                requestOptions.cert = options.https.certificate;
	            }
	            if (options.https.key) {
	                requestOptions.key = options.https.key;
	            }
	            if (options.https.passphrase) {
	                requestOptions.passphrase = options.https.passphrase;
	            }
	            if (options.https.pfx) {
	                requestOptions.pfx = options.https.pfx;
	            }
	        }
	        try {
	            let requestOrResponse = await fn(url, requestOptions);
	            if (is_1.default.undefined(requestOrResponse)) {
	                requestOrResponse = fallbackFn(url, requestOptions);
	            }
	            // Restore options
	            options.request = request;
	            options.timeout = timeout;
	            options.agent = agent;
	            // HTTPS options restore
	            if (options.https) {
	                if ('rejectUnauthorized' in options.https) {
	                    delete requestOptions.rejectUnauthorized;
	                }
	                if (options.https.checkServerIdentity) {
	                    // @ts-expect-error - This one will be removed when we remove the alias.
	                    delete requestOptions.checkServerIdentity;
	                }
	                if (options.https.certificateAuthority) {
	                    delete requestOptions.ca;
	                }
	                if (options.https.certificate) {
	                    delete requestOptions.cert;
	                }
	                if (options.https.key) {
	                    delete requestOptions.key;
	                }
	                if (options.https.passphrase) {
	                    delete requestOptions.passphrase;
	                }
	                if (options.https.pfx) {
	                    delete requestOptions.pfx;
	                }
	            }
	            if (isClientRequest(requestOrResponse)) {
	                this._onRequest(requestOrResponse);
	                // Emit the response after the stream has been ended
	            }
	            else if (this.writable) {
	                this.once('finish', () => {
	                    void this._onResponse(requestOrResponse);
	                });
	                this._unlockWrite();
	                this.end();
	                this._lockWrite();
	            }
	            else {
	                void this._onResponse(requestOrResponse);
	            }
	        }
	        catch (error) {
	            if (error instanceof CacheableRequest.CacheError) {
	                throw new CacheError(error, this);
	            }
	            throw new RequestError(error.message, error, this);
	        }
	    }
	    async _error(error) {
	        try {
	            for (const hook of this.options.hooks.beforeError) {
	                // eslint-disable-next-line no-await-in-loop
	                error = await hook(error);
	            }
	        }
	        catch (error_) {
	            error = new RequestError(error_.message, error_, this);
	        }
	        this.destroy(error);
	    }
	    _beforeError(error) {
	        if (this[kStopReading]) {
	            return;
	        }
	        const { options } = this;
	        const retryCount = this.retryCount + 1;
	        this[kStopReading] = true;
	        if (!(error instanceof RequestError)) {
	            error = new RequestError(error.message, error, this);
	        }
	        const typedError = error;
	        const { response } = typedError;
	        void (async () => {
	            if (response && !response.body) {
	                response.setEncoding(this._readableState.encoding);
	                try {
	                    response.rawBody = await get_buffer_1.default(response);
	                    response.body = response.rawBody.toString();
	                }
	                catch (_a) { }
	            }
	            if (this.listenerCount('retry') !== 0) {
	                let backoff;
	                try {
	                    let retryAfter;
	                    if (response && 'retry-after' in response.headers) {
	                        retryAfter = Number(response.headers['retry-after']);
	                        if (Number.isNaN(retryAfter)) {
	                            retryAfter = Date.parse(response.headers['retry-after']) - Date.now();
	                            if (retryAfter <= 0) {
	                                retryAfter = 1;
	                            }
	                        }
	                        else {
	                            retryAfter *= 1000;
	                        }
	                    }
	                    backoff = await options.retry.calculateDelay({
	                        attemptCount: retryCount,
	                        retryOptions: options.retry,
	                        error: typedError,
	                        retryAfter,
	                        computedValue: calculate_retry_delay_1.default({
	                            attemptCount: retryCount,
	                            retryOptions: options.retry,
	                            error: typedError,
	                            retryAfter,
	                            computedValue: 0
	                        })
	                    });
	                }
	                catch (error_) {
	                    void this._error(new RequestError(error_.message, error_, this));
	                    return;
	                }
	                if (backoff) {
	                    const retry = async () => {
	                        try {
	                            for (const hook of this.options.hooks.beforeRetry) {
	                                // eslint-disable-next-line no-await-in-loop
	                                await hook(this.options, typedError, retryCount);
	                            }
	                        }
	                        catch (error_) {
	                            void this._error(new RequestError(error_.message, error, this));
	                            return;
	                        }
	                        // Something forced us to abort the retry
	                        if (this.destroyed) {
	                            return;
	                        }
	                        this.destroy();
	                        this.emit('retry', retryCount, error);
	                    };
	                    this[kRetryTimeout] = setTimeout(retry, backoff);
	                    return;
	                }
	            }
	            void this._error(typedError);
	        })();
	    }
	    _read() {
	        this[kTriggerRead] = true;
	        const response = this[kResponse];
	        if (response && !this[kStopReading]) {
	            // We cannot put this in the `if` above
	            // because `.read()` also triggers the `end` event
	            if (response.readableLength) {
	                this[kTriggerRead] = false;
	            }
	            let data;
	            while ((data = response.read()) !== null) {
	                this[kDownloadedSize] += data.length;
	                this[kStartedReading] = true;
	                const progress = this.downloadProgress;
	                if (progress.percent < 1) {
	                    this.emit('downloadProgress', progress);
	                }
	                this.push(data);
	            }
	        }
	    }
	    // Node.js 12 has incorrect types, so the encoding must be a string
	    _write(chunk, encoding, callback) {
	        const write = () => {
	            this._writeRequest(chunk, encoding, callback);
	        };
	        if (this.requestInitialized) {
	            write();
	        }
	        else {
	            this[kJobs].push(write);
	        }
	    }
	    _writeRequest(chunk, encoding, callback) {
	        if (this[kRequest].destroyed) {
	            // Probably the `ClientRequest` instance will throw
	            return;
	        }
	        this._progressCallbacks.push(() => {
	            this[kUploadedSize] += Buffer.byteLength(chunk, encoding);
	            const progress = this.uploadProgress;
	            if (progress.percent < 1) {
	                this.emit('uploadProgress', progress);
	            }
	        });
	        // TODO: What happens if it's from cache? Then this[kRequest] won't be defined.
	        this[kRequest].write(chunk, encoding, (error) => {
	            if (!error && this._progressCallbacks.length > 0) {
	                this._progressCallbacks.shift()();
	            }
	            callback(error);
	        });
	    }
	    _final(callback) {
	        const endRequest = () => {
	            // FIX: Node.js 10 calls the write callback AFTER the end callback!
	            while (this._progressCallbacks.length !== 0) {
	                this._progressCallbacks.shift()();
	            }
	            // We need to check if `this[kRequest]` is present,
	            // because it isn't when we use cache.
	            if (!(kRequest in this)) {
	                callback();
	                return;
	            }
	            if (this[kRequest].destroyed) {
	                callback();
	                return;
	            }
	            this[kRequest].end((error) => {
	                if (!error) {
	                    this[kBodySize] = this[kUploadedSize];
	                    this.emit('uploadProgress', this.uploadProgress);
	                    this[kRequest].emit('upload-complete');
	                }
	                callback(error);
	            });
	        };
	        if (this.requestInitialized) {
	            endRequest();
	        }
	        else {
	            this[kJobs].push(endRequest);
	        }
	    }
	    _destroy(error, callback) {
	        var _a;
	        this[kStopReading] = true;
	        // Prevent further retries
	        clearTimeout(this[kRetryTimeout]);
	        if (kRequest in this) {
	            this[kCancelTimeouts]();
	            // TODO: Remove the next `if` when these get fixed:
	            // - https://github.com/nodejs/node/issues/32851
	            if (!((_a = this[kResponse]) === null || _a === void 0 ? void 0 : _a.complete)) {
	                this[kRequest].destroy();
	            }
	        }
	        if (error !== null && !is_1.default.undefined(error) && !(error instanceof RequestError)) {
	            error = new RequestError(error.message, error, this);
	        }
	        callback(error);
	    }
	    get _isAboutToError() {
	        return this[kStopReading];
	    }
	    /**
	    The remote IP address.
	    */
	    get ip() {
	        var _a;
	        return (_a = this.socket) === null || _a === void 0 ? void 0 : _a.remoteAddress;
	    }
	    /**
	    Indicates whether the request has been aborted or not.
	    */
	    get aborted() {
	        var _a, _b, _c;
	        return ((_b = (_a = this[kRequest]) === null || _a === void 0 ? void 0 : _a.destroyed) !== null && _b !== void 0 ? _b : this.destroyed) && !((_c = this[kOriginalResponse]) === null || _c === void 0 ? void 0 : _c.complete);
	    }
	    get socket() {
	        var _a, _b;
	        return (_b = (_a = this[kRequest]) === null || _a === void 0 ? void 0 : _a.socket) !== null && _b !== void 0 ? _b : undefined;
	    }
	    /**
	    Progress event for downloading (receiving a response).
	    */
	    get downloadProgress() {
	        let percent;
	        if (this[kResponseSize]) {
	            percent = this[kDownloadedSize] / this[kResponseSize];
	        }
	        else if (this[kResponseSize] === this[kDownloadedSize]) {
	            percent = 1;
	        }
	        else {
	            percent = 0;
	        }
	        return {
	            percent,
	            transferred: this[kDownloadedSize],
	            total: this[kResponseSize]
	        };
	    }
	    /**
	    Progress event for uploading (sending a request).
	    */
	    get uploadProgress() {
	        let percent;
	        if (this[kBodySize]) {
	            percent = this[kUploadedSize] / this[kBodySize];
	        }
	        else if (this[kBodySize] === this[kUploadedSize]) {
	            percent = 1;
	        }
	        else {
	            percent = 0;
	        }
	        return {
	            percent,
	            transferred: this[kUploadedSize],
	            total: this[kBodySize]
	        };
	    }
	    /**
	    The object contains the following properties:

	    - `start` - Time when the request started.
	    - `socket` - Time when a socket was assigned to the request.
	    - `lookup` - Time when the DNS lookup finished.
	    - `connect` - Time when the socket successfully connected.
	    - `secureConnect` - Time when the socket securely connected.
	    - `upload` - Time when the request finished uploading.
	    - `response` - Time when the request fired `response` event.
	    - `end` - Time when the response fired `end` event.
	    - `error` - Time when the request fired `error` event.
	    - `abort` - Time when the request fired `abort` event.
	    - `phases`
	        - `wait` - `timings.socket - timings.start`
	        - `dns` - `timings.lookup - timings.socket`
	        - `tcp` - `timings.connect - timings.lookup`
	        - `tls` - `timings.secureConnect - timings.connect`
	        - `request` - `timings.upload - (timings.secureConnect || timings.connect)`
	        - `firstByte` - `timings.response - timings.upload`
	        - `download` - `timings.end - timings.response`
	        - `total` - `(timings.end || timings.error || timings.abort) - timings.start`

	    If something has not been measured yet, it will be `undefined`.

	    __Note__: The time is a `number` representing the milliseconds elapsed since the UNIX epoch.
	    */
	    get timings() {
	        var _a;
	        return (_a = this[kRequest]) === null || _a === void 0 ? void 0 : _a.timings;
	    }
	    /**
	    Whether the response was retrieved from the cache.
	    */
	    get isFromCache() {
	        return this[kIsFromCache];
	    }
	    pipe(destination, options) {
	        if (this[kStartedReading]) {
	            throw new Error('Failed to pipe. The response has been emitted already.');
	        }
	        if (destination instanceof http_1.ServerResponse) {
	            this[kServerResponsesPiped].add(destination);
	        }
	        return super.pipe(destination, options);
	    }
	    unpipe(destination) {
	        if (destination instanceof http_1.ServerResponse) {
	            this[kServerResponsesPiped].delete(destination);
	        }
	        super.unpipe(destination);
	        return this;
	    }
	}
	exports.default = Request;
} (core$2));

var hasRequiredTypes$1;

function requireTypes$1 () {
	if (hasRequiredTypes$1) return types$1;
	hasRequiredTypes$1 = 1;
	(function (exports) {
		var __createBinding = (commonjsGlobal && commonjsGlobal.__createBinding) || (Object.create ? (function(o, m, k, k2) {
		    if (k2 === undefined) k2 = k;
		    Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });
		}) : (function(o, m, k, k2) {
		    if (k2 === undefined) k2 = k;
		    o[k2] = m[k];
		}));
		var __exportStar = (commonjsGlobal && commonjsGlobal.__exportStar) || function(m, exports) {
		    for (var p in m) if (p !== "default" && !Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
		};
		Object.defineProperty(exports, "__esModule", { value: true });
		exports.CancelError = exports.ParseError = void 0;
		const core_1 = core$2;
		/**
		An error to be thrown when server response code is 2xx, and parsing body fails.
		Includes a `response` property.
		*/
		class ParseError extends core_1.RequestError {
		    constructor(error, response) {
		        const { options } = response.request;
		        super(`${error.message} in "${options.url.toString()}"`, error, response.request);
		        this.name = 'ParseError';
		        this.code = this.code === 'ERR_GOT_REQUEST_ERROR' ? 'ERR_BODY_PARSE_FAILURE' : this.code;
		    }
		}
		exports.ParseError = ParseError;
		/**
		An error to be thrown when the request is aborted with `.cancel()`.
		*/
		class CancelError extends core_1.RequestError {
		    constructor(request) {
		        super('Promise was canceled', {}, request);
		        this.name = 'CancelError';
		        this.code = 'ERR_CANCELED';
		    }
		    get isCanceled() {
		        return true;
		    }
		}
		exports.CancelError = CancelError;
		__exportStar(core$2, exports);
} (types$1));
	return types$1;
}

var parseBody = {};

var hasRequiredParseBody;

function requireParseBody () {
	if (hasRequiredParseBody) return parseBody;
	hasRequiredParseBody = 1;
	Object.defineProperty(parseBody, "__esModule", { value: true });
	const types_1 = requireTypes$1();
	const parseBody$1 = (response, responseType, parseJson, encoding) => {
	    const { rawBody } = response;
	    try {
	        if (responseType === 'text') {
	            return rawBody.toString(encoding);
	        }
	        if (responseType === 'json') {
	            return rawBody.length === 0 ? '' : parseJson(rawBody.toString());
	        }
	        if (responseType === 'buffer') {
	            return rawBody;
	        }
	        throw new types_1.ParseError({
	            message: `Unknown body type '${responseType}'`,
	            name: 'Error'
	        }, response);
	    }
	    catch (error) {
	        throw new types_1.ParseError(error, response);
	    }
	};
	parseBody.default = parseBody$1;
	return parseBody;
}

var hasRequiredAsPromise;

function requireAsPromise () {
	if (hasRequiredAsPromise) return asPromise;
	hasRequiredAsPromise = 1;
	(function (exports) {
		var __createBinding = (commonjsGlobal && commonjsGlobal.__createBinding) || (Object.create ? (function(o, m, k, k2) {
		    if (k2 === undefined) k2 = k;
		    Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });
		}) : (function(o, m, k, k2) {
		    if (k2 === undefined) k2 = k;
		    o[k2] = m[k];
		}));
		var __exportStar = (commonjsGlobal && commonjsGlobal.__exportStar) || function(m, exports) {
		    for (var p in m) if (p !== "default" && !Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
		};
		Object.defineProperty(exports, "__esModule", { value: true });
		const events_1 = require$$0__default$5["default"];
		const is_1 = dist.exports;
		const PCancelable = requirePCancelable();
		const types_1 = requireTypes$1();
		const parse_body_1 = requireParseBody();
		const core_1 = core$2;
		const proxy_events_1 = requireProxyEvents();
		const get_buffer_1 = requireGetBuffer();
		const is_response_ok_1 = requireIsResponseOk();
		const proxiedRequestEvents = [
		    'request',
		    'response',
		    'redirect',
		    'uploadProgress',
		    'downloadProgress'
		];
		function asPromise(normalizedOptions) {
		    let globalRequest;
		    let globalResponse;
		    const emitter = new events_1.EventEmitter();
		    const promise = new PCancelable((resolve, reject, onCancel) => {
		        const makeRequest = (retryCount) => {
		            const request = new core_1.default(undefined, normalizedOptions);
		            request.retryCount = retryCount;
		            request._noPipe = true;
		            onCancel(() => request.destroy());
		            onCancel.shouldReject = false;
		            onCancel(() => reject(new types_1.CancelError(request)));
		            globalRequest = request;
		            request.once('response', async (response) => {
		                var _a;
		                response.retryCount = retryCount;
		                if (response.request.aborted) {
		                    // Canceled while downloading - will throw a `CancelError` or `TimeoutError` error
		                    return;
		                }
		                // Download body
		                let rawBody;
		                try {
		                    rawBody = await get_buffer_1.default(request);
		                    response.rawBody = rawBody;
		                }
		                catch (_b) {
		                    // The same error is caught below.
		                    // See request.once('error')
		                    return;
		                }
		                if (request._isAboutToError) {
		                    return;
		                }
		                // Parse body
		                const contentEncoding = ((_a = response.headers['content-encoding']) !== null && _a !== void 0 ? _a : '').toLowerCase();
		                const isCompressed = ['gzip', 'deflate', 'br'].includes(contentEncoding);
		                const { options } = request;
		                if (isCompressed && !options.decompress) {
		                    response.body = rawBody;
		                }
		                else {
		                    try {
		                        response.body = parse_body_1.default(response, options.responseType, options.parseJson, options.encoding);
		                    }
		                    catch (error) {
		                        // Fallback to `utf8`
		                        response.body = rawBody.toString();
		                        if (is_response_ok_1.isResponseOk(response)) {
		                            request._beforeError(error);
		                            return;
		                        }
		                    }
		                }
		                try {
		                    for (const [index, hook] of options.hooks.afterResponse.entries()) {
		                        // @ts-expect-error TS doesn't notice that CancelableRequest is a Promise
		                        // eslint-disable-next-line no-await-in-loop
		                        response = await hook(response, async (updatedOptions) => {
		                            const typedOptions = core_1.default.normalizeArguments(undefined, {
		                                ...updatedOptions,
		                                retry: {
		                                    calculateDelay: () => 0
		                                },
		                                throwHttpErrors: false,
		                                resolveBodyOnly: false
		                            }, options);
		                            // Remove any further hooks for that request, because we'll call them anyway.
		                            // The loop continues. We don't want duplicates (asPromise recursion).
		                            typedOptions.hooks.afterResponse = typedOptions.hooks.afterResponse.slice(0, index);
		                            for (const hook of typedOptions.hooks.beforeRetry) {
		                                // eslint-disable-next-line no-await-in-loop
		                                await hook(typedOptions);
		                            }
		                            const promise = asPromise(typedOptions);
		                            onCancel(() => {
		                                promise.catch(() => { });
		                                promise.cancel();
		                            });
		                            return promise;
		                        });
		                    }
		                }
		                catch (error) {
		                    request._beforeError(new types_1.RequestError(error.message, error, request));
		                    return;
		                }
		                globalResponse = response;
		                if (!is_response_ok_1.isResponseOk(response)) {
		                    request._beforeError(new types_1.HTTPError(response));
		                    return;
		                }
		                resolve(request.options.resolveBodyOnly ? response.body : response);
		            });
		            const onError = (error) => {
		                if (promise.isCanceled) {
		                    return;
		                }
		                const { options } = request;
		                if (error instanceof types_1.HTTPError && !options.throwHttpErrors) {
		                    const { response } = error;
		                    resolve(request.options.resolveBodyOnly ? response.body : response);
		                    return;
		                }
		                reject(error);
		            };
		            request.once('error', onError);
		            const previousBody = request.options.body;
		            request.once('retry', (newRetryCount, error) => {
		                var _a, _b;
		                if (previousBody === ((_a = error.request) === null || _a === void 0 ? void 0 : _a.options.body) && is_1.default.nodeStream((_b = error.request) === null || _b === void 0 ? void 0 : _b.options.body)) {
		                    onError(error);
		                    return;
		                }
		                makeRequest(newRetryCount);
		            });
		            proxy_events_1.default(request, emitter, proxiedRequestEvents);
		        };
		        makeRequest(0);
		    });
		    promise.on = (event, fn) => {
		        emitter.on(event, fn);
		        return promise;
		    };
		    const shortcut = (responseType) => {
		        const newPromise = (async () => {
		            // Wait until downloading has ended
		            await promise;
		            const { options } = globalResponse.request;
		            return parse_body_1.default(globalResponse, responseType, options.parseJson, options.encoding);
		        })();
		        Object.defineProperties(newPromise, Object.getOwnPropertyDescriptors(promise));
		        return newPromise;
		    };
		    promise.json = () => {
		        const { headers } = globalRequest.options;
		        if (!globalRequest.writableFinished && headers.accept === undefined) {
		            headers.accept = 'application/json';
		        }
		        return shortcut('json');
		    };
		    promise.buffer = () => shortcut('buffer');
		    promise.text = () => shortcut('text');
		    return promise;
		}
		exports.default = asPromise;
		__exportStar(requireTypes$1(), exports);
} (asPromise));
	return asPromise;
}

var createRejection$1 = {};

Object.defineProperty(createRejection$1, "__esModule", { value: true });
const types_1 = requireTypes$1();
function createRejection(error, ...beforeErrorGroups) {
    const promise = (async () => {
        if (error instanceof types_1.RequestError) {
            try {
                for (const hooks of beforeErrorGroups) {
                    if (hooks) {
                        for (const hook of hooks) {
                            // eslint-disable-next-line no-await-in-loop
                            error = await hook(error);
                        }
                    }
                }
            }
            catch (error_) {
                error = error_;
            }
        }
        throw error;
    })();
    const returnPromise = () => promise;
    promise.json = returnPromise;
    promise.text = returnPromise;
    promise.buffer = returnPromise;
    promise.on = returnPromise;
    return promise;
}
createRejection$1.default = createRejection;

var deepFreeze$1 = {};

Object.defineProperty(deepFreeze$1, "__esModule", { value: true });
const is_1 = dist.exports;
function deepFreeze(object) {
    for (const value of Object.values(object)) {
        if (is_1.default.plainObject(value) || is_1.default.array(value)) {
            deepFreeze(value);
        }
    }
    return Object.freeze(object);
}
deepFreeze$1.default = deepFreeze;

var types = {};

var hasRequiredTypes;

function requireTypes () {
	if (hasRequiredTypes) return types;
	hasRequiredTypes = 1;
	Object.defineProperty(types, "__esModule", { value: true });
	return types;
}

(function (exports) {
	var __createBinding = (commonjsGlobal && commonjsGlobal.__createBinding) || (Object.create ? (function(o, m, k, k2) {
	    if (k2 === undefined) k2 = k;
	    Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });
	}) : (function(o, m, k, k2) {
	    if (k2 === undefined) k2 = k;
	    o[k2] = m[k];
	}));
	var __exportStar = (commonjsGlobal && commonjsGlobal.__exportStar) || function(m, exports) {
	    for (var p in m) if (p !== "default" && !Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
	};
	Object.defineProperty(exports, "__esModule", { value: true });
	exports.defaultHandler = void 0;
	const is_1 = dist.exports;
	const as_promise_1 = requireAsPromise();
	const create_rejection_1 = createRejection$1;
	const core_1 = core$2;
	const deep_freeze_1 = deepFreeze$1;
	const errors = {
	    RequestError: as_promise_1.RequestError,
	    CacheError: as_promise_1.CacheError,
	    ReadError: as_promise_1.ReadError,
	    HTTPError: as_promise_1.HTTPError,
	    MaxRedirectsError: as_promise_1.MaxRedirectsError,
	    TimeoutError: as_promise_1.TimeoutError,
	    ParseError: as_promise_1.ParseError,
	    CancelError: as_promise_1.CancelError,
	    UnsupportedProtocolError: as_promise_1.UnsupportedProtocolError,
	    UploadError: as_promise_1.UploadError
	};
	// The `delay` package weighs 10KB (!)
	const delay = async (ms) => new Promise(resolve => {
	    setTimeout(resolve, ms);
	});
	const { normalizeArguments } = core_1.default;
	const mergeOptions = (...sources) => {
	    let mergedOptions;
	    for (const source of sources) {
	        mergedOptions = normalizeArguments(undefined, source, mergedOptions);
	    }
	    return mergedOptions;
	};
	const getPromiseOrStream = (options) => options.isStream ? new core_1.default(undefined, options) : as_promise_1.default(options);
	const isGotInstance = (value) => ('defaults' in value && 'options' in value.defaults);
	const aliases = [
	    'get',
	    'post',
	    'put',
	    'patch',
	    'head',
	    'delete'
	];
	exports.defaultHandler = (options, next) => next(options);
	const callInitHooks = (hooks, options) => {
	    if (hooks) {
	        for (const hook of hooks) {
	            hook(options);
	        }
	    }
	};
	const create = (defaults) => {
	    // Proxy properties from next handlers
	    defaults._rawHandlers = defaults.handlers;
	    defaults.handlers = defaults.handlers.map(fn => ((options, next) => {
	        // This will be assigned by assigning result
	        let root;
	        const result = fn(options, newOptions => {
	            root = next(newOptions);
	            return root;
	        });
	        if (result !== root && !options.isStream && root) {
	            const typedResult = result;
	            const { then: promiseThen, catch: promiseCatch, finally: promiseFianlly } = typedResult;
	            Object.setPrototypeOf(typedResult, Object.getPrototypeOf(root));
	            Object.defineProperties(typedResult, Object.getOwnPropertyDescriptors(root));
	            // These should point to the new promise
	            // eslint-disable-next-line promise/prefer-await-to-then
	            typedResult.then = promiseThen;
	            typedResult.catch = promiseCatch;
	            typedResult.finally = promiseFianlly;
	        }
	        return result;
	    }));
	    // Got interface
	    const got = ((url, options = {}, _defaults) => {
	        var _a, _b;
	        let iteration = 0;
	        const iterateHandlers = (newOptions) => {
	            return defaults.handlers[iteration++](newOptions, iteration === defaults.handlers.length ? getPromiseOrStream : iterateHandlers);
	        };
	        // TODO: Remove this in Got 12.
	        if (is_1.default.plainObject(url)) {
	            const mergedOptions = {
	                ...url,
	                ...options
	            };
	            core_1.setNonEnumerableProperties([url, options], mergedOptions);
	            options = mergedOptions;
	            url = undefined;
	        }
	        try {
	            // Call `init` hooks
	            let initHookError;
	            try {
	                callInitHooks(defaults.options.hooks.init, options);
	                callInitHooks((_a = options.hooks) === null || _a === void 0 ? void 0 : _a.init, options);
	            }
	            catch (error) {
	                initHookError = error;
	            }
	            // Normalize options & call handlers
	            const normalizedOptions = normalizeArguments(url, options, _defaults !== null && _defaults !== void 0 ? _defaults : defaults.options);
	            normalizedOptions[core_1.kIsNormalizedAlready] = true;
	            if (initHookError) {
	                throw new as_promise_1.RequestError(initHookError.message, initHookError, normalizedOptions);
	            }
	            return iterateHandlers(normalizedOptions);
	        }
	        catch (error) {
	            if (options.isStream) {
	                throw error;
	            }
	            else {
	                return create_rejection_1.default(error, defaults.options.hooks.beforeError, (_b = options.hooks) === null || _b === void 0 ? void 0 : _b.beforeError);
	            }
	        }
	    });
	    got.extend = (...instancesOrOptions) => {
	        const optionsArray = [defaults.options];
	        let handlers = [...defaults._rawHandlers];
	        let isMutableDefaults;
	        for (const value of instancesOrOptions) {
	            if (isGotInstance(value)) {
	                optionsArray.push(value.defaults.options);
	                handlers.push(...value.defaults._rawHandlers);
	                isMutableDefaults = value.defaults.mutableDefaults;
	            }
	            else {
	                optionsArray.push(value);
	                if ('handlers' in value) {
	                    handlers.push(...value.handlers);
	                }
	                isMutableDefaults = value.mutableDefaults;
	            }
	        }
	        handlers = handlers.filter(handler => handler !== exports.defaultHandler);
	        if (handlers.length === 0) {
	            handlers.push(exports.defaultHandler);
	        }
	        return create({
	            options: mergeOptions(...optionsArray),
	            handlers,
	            mutableDefaults: Boolean(isMutableDefaults)
	        });
	    };
	    // Pagination
	    const paginateEach = (async function* (url, options) {
	        // TODO: Remove this `@ts-expect-error` when upgrading to TypeScript 4.
	        // Error: Argument of type 'Merge<Options, PaginationOptions<T, R>> | undefined' is not assignable to parameter of type 'Options | undefined'.
	        // @ts-expect-error
	        let normalizedOptions = normalizeArguments(url, options, defaults.options);
	        normalizedOptions.resolveBodyOnly = false;
	        const pagination = normalizedOptions.pagination;
	        if (!is_1.default.object(pagination)) {
	            throw new TypeError('`options.pagination` must be implemented');
	        }
	        const all = [];
	        let { countLimit } = pagination;
	        let numberOfRequests = 0;
	        while (numberOfRequests < pagination.requestLimit) {
	            if (numberOfRequests !== 0) {
	                // eslint-disable-next-line no-await-in-loop
	                await delay(pagination.backoff);
	            }
	            // @ts-expect-error FIXME!
	            // TODO: Throw when result is not an instance of Response
	            // eslint-disable-next-line no-await-in-loop
	            const result = (await got(undefined, undefined, normalizedOptions));
	            // eslint-disable-next-line no-await-in-loop
	            const parsed = await pagination.transform(result);
	            const current = [];
	            for (const item of parsed) {
	                if (pagination.filter(item, all, current)) {
	                    if (!pagination.shouldContinue(item, all, current)) {
	                        return;
	                    }
	                    yield item;
	                    if (pagination.stackAllItems) {
	                        all.push(item);
	                    }
	                    current.push(item);
	                    if (--countLimit <= 0) {
	                        return;
	                    }
	                }
	            }
	            const optionsToMerge = pagination.paginate(result, all, current);
	            if (optionsToMerge === false) {
	                return;
	            }
	            if (optionsToMerge === result.request.options) {
	                normalizedOptions = result.request.options;
	            }
	            else if (optionsToMerge !== undefined) {
	                normalizedOptions = normalizeArguments(undefined, optionsToMerge, normalizedOptions);
	            }
	            numberOfRequests++;
	        }
	    });
	    got.paginate = paginateEach;
	    got.paginate.all = (async (url, options) => {
	        const results = [];
	        for await (const item of paginateEach(url, options)) {
	            results.push(item);
	        }
	        return results;
	    });
	    // For those who like very descriptive names
	    got.paginate.each = paginateEach;
	    // Stream API
	    got.stream = ((url, options) => got(url, { ...options, isStream: true }));
	    // Shortcuts
	    for (const method of aliases) {
	        got[method] = ((url, options) => got(url, { ...options, method }));
	        got.stream[method] = ((url, options) => {
	            return got(url, { ...options, method, isStream: true });
	        });
	    }
	    Object.assign(got, errors);
	    Object.defineProperty(got, 'defaults', {
	        value: defaults.mutableDefaults ? defaults : deep_freeze_1.default(defaults),
	        writable: defaults.mutableDefaults,
	        configurable: defaults.mutableDefaults,
	        enumerable: true
	    });
	    got.mergeOptions = mergeOptions;
	    return got;
	};
	exports.default = create;
	__exportStar(requireTypes(), exports);
} (create));

(function (module, exports) {
	var __createBinding = (commonjsGlobal && commonjsGlobal.__createBinding) || (Object.create ? (function(o, m, k, k2) {
	    if (k2 === undefined) k2 = k;
	    Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });
	}) : (function(o, m, k, k2) {
	    if (k2 === undefined) k2 = k;
	    o[k2] = m[k];
	}));
	var __exportStar = (commonjsGlobal && commonjsGlobal.__exportStar) || function(m, exports) {
	    for (var p in m) if (p !== "default" && !Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
	};
	Object.defineProperty(exports, "__esModule", { value: true });
	const url_1 = require$$0__default$6["default"];
	const create_1 = create;
	const defaults = {
	    options: {
	        method: 'GET',
	        retry: {
	            limit: 2,
	            methods: [
	                'GET',
	                'PUT',
	                'HEAD',
	                'DELETE',
	                'OPTIONS',
	                'TRACE'
	            ],
	            statusCodes: [
	                408,
	                413,
	                429,
	                500,
	                502,
	                503,
	                504,
	                521,
	                522,
	                524
	            ],
	            errorCodes: [
	                'ETIMEDOUT',
	                'ECONNRESET',
	                'EADDRINUSE',
	                'ECONNREFUSED',
	                'EPIPE',
	                'ENOTFOUND',
	                'ENETUNREACH',
	                'EAI_AGAIN'
	            ],
	            maxRetryAfter: undefined,
	            calculateDelay: ({ computedValue }) => computedValue
	        },
	        timeout: {},
	        headers: {
	            'user-agent': 'got (https://github.com/sindresorhus/got)'
	        },
	        hooks: {
	            init: [],
	            beforeRequest: [],
	            beforeRedirect: [],
	            beforeRetry: [],
	            beforeError: [],
	            afterResponse: []
	        },
	        cache: undefined,
	        dnsCache: undefined,
	        decompress: true,
	        throwHttpErrors: true,
	        followRedirect: true,
	        isStream: false,
	        responseType: 'text',
	        resolveBodyOnly: false,
	        maxRedirects: 10,
	        prefixUrl: '',
	        methodRewriting: true,
	        ignoreInvalidCookies: false,
	        context: {},
	        // TODO: Set this to `true` when Got 12 gets released
	        http2: false,
	        allowGetBody: false,
	        https: undefined,
	        pagination: {
	            transform: (response) => {
	                if (response.request.options.responseType === 'json') {
	                    return response.body;
	                }
	                return JSON.parse(response.body);
	            },
	            paginate: response => {
	                if (!Reflect.has(response.headers, 'link')) {
	                    return false;
	                }
	                const items = response.headers.link.split(',');
	                let next;
	                for (const item of items) {
	                    const parsed = item.split(';');
	                    if (parsed[1].includes('next')) {
	                        next = parsed[0].trimStart().trim();
	                        next = next.slice(1, -1);
	                        break;
	                    }
	                }
	                if (next) {
	                    const options = {
	                        url: new url_1.URL(next)
	                    };
	                    return options;
	                }
	                return false;
	            },
	            filter: () => true,
	            shouldContinue: () => true,
	            countLimit: Infinity,
	            backoff: 0,
	            requestLimit: 10000,
	            stackAllItems: true
	        },
	        parseJson: (text) => JSON.parse(text),
	        stringifyJson: (object) => JSON.stringify(object),
	        cacheOptions: {}
	    },
	    handlers: [create_1.defaultHandler],
	    mutableDefaults: false
	};
	const got = create_1.default(defaults);
	exports.default = got;
	// For CommonJS default export support
	module.exports = got;
	module.exports.default = got;
	module.exports.__esModule = true; // Workaround for TS issue: https://github.com/sindresorhus/got/pull/1267
	__exportStar(create, exports);
	__exportStar(requireAsPromise(), exports);
} (source$4, source$4.exports));

var got = /*@__PURE__*/getDefaultExportFromCjs(source$4.exports);

var lib = {};

var readable = {exports: {}};

var stream$2;
var hasRequiredStream;

function requireStream () {
	if (hasRequiredStream) return stream$2;
	hasRequiredStream = 1;
	stream$2 = require$$0__default$3["default"];
	return stream$2;
}

var buffer_list;
var hasRequiredBuffer_list;

function requireBuffer_list () {
	if (hasRequiredBuffer_list) return buffer_list;
	hasRequiredBuffer_list = 1;

	function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); if (enumerableOnly) symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; }); keys.push.apply(keys, symbols); } return keys; }

	function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; if (i % 2) { ownKeys(Object(source), true).forEach(function (key) { _defineProperty(target, key, source[key]); }); } else if (Object.getOwnPropertyDescriptors) { Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)); } else { ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } } return target; }

	function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }

	function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

	function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

	function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

	var _require = require$$0__default$4["default"],
	    Buffer = _require.Buffer;

	var _require2 = require$$1__default["default"],
	    inspect = _require2.inspect;

	var custom = inspect && inspect.custom || 'inspect';

	function copyBuffer(src, target, offset) {
	  Buffer.prototype.copy.call(src, target, offset);
	}

	buffer_list =
	/*#__PURE__*/
	function () {
	  function BufferList() {
	    _classCallCheck(this, BufferList);

	    this.head = null;
	    this.tail = null;
	    this.length = 0;
	  }

	  _createClass(BufferList, [{
	    key: "push",
	    value: function push(v) {
	      var entry = {
	        data: v,
	        next: null
	      };
	      if (this.length > 0) this.tail.next = entry;else this.head = entry;
	      this.tail = entry;
	      ++this.length;
	    }
	  }, {
	    key: "unshift",
	    value: function unshift(v) {
	      var entry = {
	        data: v,
	        next: this.head
	      };
	      if (this.length === 0) this.tail = entry;
	      this.head = entry;
	      ++this.length;
	    }
	  }, {
	    key: "shift",
	    value: function shift() {
	      if (this.length === 0) return;
	      var ret = this.head.data;
	      if (this.length === 1) this.head = this.tail = null;else this.head = this.head.next;
	      --this.length;
	      return ret;
	    }
	  }, {
	    key: "clear",
	    value: function clear() {
	      this.head = this.tail = null;
	      this.length = 0;
	    }
	  }, {
	    key: "join",
	    value: function join(s) {
	      if (this.length === 0) return '';
	      var p = this.head;
	      var ret = '' + p.data;

	      while (p = p.next) {
	        ret += s + p.data;
	      }

	      return ret;
	    }
	  }, {
	    key: "concat",
	    value: function concat(n) {
	      if (this.length === 0) return Buffer.alloc(0);
	      var ret = Buffer.allocUnsafe(n >>> 0);
	      var p = this.head;
	      var i = 0;

	      while (p) {
	        copyBuffer(p.data, ret, i);
	        i += p.data.length;
	        p = p.next;
	      }

	      return ret;
	    } // Consumes a specified amount of bytes or characters from the buffered data.

	  }, {
	    key: "consume",
	    value: function consume(n, hasStrings) {
	      var ret;

	      if (n < this.head.data.length) {
	        // `slice` is the same for buffers and strings.
	        ret = this.head.data.slice(0, n);
	        this.head.data = this.head.data.slice(n);
	      } else if (n === this.head.data.length) {
	        // First chunk is a perfect match.
	        ret = this.shift();
	      } else {
	        // Result spans more than one buffer.
	        ret = hasStrings ? this._getString(n) : this._getBuffer(n);
	      }

	      return ret;
	    }
	  }, {
	    key: "first",
	    value: function first() {
	      return this.head.data;
	    } // Consumes a specified amount of characters from the buffered data.

	  }, {
	    key: "_getString",
	    value: function _getString(n) {
	      var p = this.head;
	      var c = 1;
	      var ret = p.data;
	      n -= ret.length;

	      while (p = p.next) {
	        var str = p.data;
	        var nb = n > str.length ? str.length : n;
	        if (nb === str.length) ret += str;else ret += str.slice(0, n);
	        n -= nb;

	        if (n === 0) {
	          if (nb === str.length) {
	            ++c;
	            if (p.next) this.head = p.next;else this.head = this.tail = null;
	          } else {
	            this.head = p;
	            p.data = str.slice(nb);
	          }

	          break;
	        }

	        ++c;
	      }

	      this.length -= c;
	      return ret;
	    } // Consumes a specified amount of bytes from the buffered data.

	  }, {
	    key: "_getBuffer",
	    value: function _getBuffer(n) {
	      var ret = Buffer.allocUnsafe(n);
	      var p = this.head;
	      var c = 1;
	      p.data.copy(ret);
	      n -= p.data.length;

	      while (p = p.next) {
	        var buf = p.data;
	        var nb = n > buf.length ? buf.length : n;
	        buf.copy(ret, ret.length - n, 0, nb);
	        n -= nb;

	        if (n === 0) {
	          if (nb === buf.length) {
	            ++c;
	            if (p.next) this.head = p.next;else this.head = this.tail = null;
	          } else {
	            this.head = p;
	            p.data = buf.slice(nb);
	          }

	          break;
	        }

	        ++c;
	      }

	      this.length -= c;
	      return ret;
	    } // Make sure the linked list only shows the minimal necessary information.

	  }, {
	    key: custom,
	    value: function value(_, options) {
	      return inspect(this, _objectSpread({}, options, {
	        // Only inspect one level.
	        depth: 0,
	        // It should not recurse.
	        customInspect: false
	      }));
	    }
	  }]);

	  return BufferList;
	}();
	return buffer_list;
}

var destroy_1;
var hasRequiredDestroy;

function requireDestroy () {
	if (hasRequiredDestroy) return destroy_1;
	hasRequiredDestroy = 1;

	function destroy(err, cb) {
	  var _this = this;

	  var readableDestroyed = this._readableState && this._readableState.destroyed;
	  var writableDestroyed = this._writableState && this._writableState.destroyed;

	  if (readableDestroyed || writableDestroyed) {
	    if (cb) {
	      cb(err);
	    } else if (err) {
	      if (!this._writableState) {
	        process.nextTick(emitErrorNT, this, err);
	      } else if (!this._writableState.errorEmitted) {
	        this._writableState.errorEmitted = true;
	        process.nextTick(emitErrorNT, this, err);
	      }
	    }

	    return this;
	  } // we set destroyed to true before firing error callbacks in order
	  // to make it re-entrance safe in case destroy() is called within callbacks


	  if (this._readableState) {
	    this._readableState.destroyed = true;
	  } // if this is a duplex stream mark the writable part as destroyed as well


	  if (this._writableState) {
	    this._writableState.destroyed = true;
	  }

	  this._destroy(err || null, function (err) {
	    if (!cb && err) {
	      if (!_this._writableState) {
	        process.nextTick(emitErrorAndCloseNT, _this, err);
	      } else if (!_this._writableState.errorEmitted) {
	        _this._writableState.errorEmitted = true;
	        process.nextTick(emitErrorAndCloseNT, _this, err);
	      } else {
	        process.nextTick(emitCloseNT, _this);
	      }
	    } else if (cb) {
	      process.nextTick(emitCloseNT, _this);
	      cb(err);
	    } else {
	      process.nextTick(emitCloseNT, _this);
	    }
	  });

	  return this;
	}

	function emitErrorAndCloseNT(self, err) {
	  emitErrorNT(self, err);
	  emitCloseNT(self);
	}

	function emitCloseNT(self) {
	  if (self._writableState && !self._writableState.emitClose) return;
	  if (self._readableState && !self._readableState.emitClose) return;
	  self.emit('close');
	}

	function undestroy() {
	  if (this._readableState) {
	    this._readableState.destroyed = false;
	    this._readableState.reading = false;
	    this._readableState.ended = false;
	    this._readableState.endEmitted = false;
	  }

	  if (this._writableState) {
	    this._writableState.destroyed = false;
	    this._writableState.ended = false;
	    this._writableState.ending = false;
	    this._writableState.finalCalled = false;
	    this._writableState.prefinished = false;
	    this._writableState.finished = false;
	    this._writableState.errorEmitted = false;
	  }
	}

	function emitErrorNT(self, err) {
	  self.emit('error', err);
	}

	function errorOrDestroy(stream, err) {
	  // We have tests that rely on errors being emitted
	  // in the same tick, so changing this is semver major.
	  // For now when you opt-in to autoDestroy we allow
	  // the error to be emitted nextTick. In a future
	  // semver major update we should change the default to this.
	  var rState = stream._readableState;
	  var wState = stream._writableState;
	  if (rState && rState.autoDestroy || wState && wState.autoDestroy) stream.destroy(err);else stream.emit('error', err);
	}

	destroy_1 = {
	  destroy: destroy,
	  undestroy: undestroy,
	  errorOrDestroy: errorOrDestroy
	};
	return destroy_1;
}

var errors = {};

var hasRequiredErrors;

function requireErrors () {
	if (hasRequiredErrors) return errors;
	hasRequiredErrors = 1;

	const codes = {};

	function createErrorType(code, message, Base) {
	  if (!Base) {
	    Base = Error;
	  }

	  function getMessage (arg1, arg2, arg3) {
	    if (typeof message === 'string') {
	      return message
	    } else {
	      return message(arg1, arg2, arg3)
	    }
	  }

	  class NodeError extends Base {
	    constructor (arg1, arg2, arg3) {
	      super(getMessage(arg1, arg2, arg3));
	    }
	  }

	  NodeError.prototype.name = Base.name;
	  NodeError.prototype.code = code;

	  codes[code] = NodeError;
	}

	// https://github.com/nodejs/node/blob/v10.8.0/lib/internal/errors.js
	function oneOf(expected, thing) {
	  if (Array.isArray(expected)) {
	    const len = expected.length;
	    expected = expected.map((i) => String(i));
	    if (len > 2) {
	      return `one of ${thing} ${expected.slice(0, len - 1).join(', ')}, or ` +
	             expected[len - 1];
	    } else if (len === 2) {
	      return `one of ${thing} ${expected[0]} or ${expected[1]}`;
	    } else {
	      return `of ${thing} ${expected[0]}`;
	    }
	  } else {
	    return `of ${thing} ${String(expected)}`;
	  }
	}

	// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/startsWith
	function startsWith(str, search, pos) {
		return str.substr(!pos || pos < 0 ? 0 : +pos, search.length) === search;
	}

	// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/endsWith
	function endsWith(str, search, this_len) {
		if (this_len === undefined || this_len > str.length) {
			this_len = str.length;
		}
		return str.substring(this_len - search.length, this_len) === search;
	}

	// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/includes
	function includes(str, search, start) {
	  if (typeof start !== 'number') {
	    start = 0;
	  }

	  if (start + search.length > str.length) {
	    return false;
	  } else {
	    return str.indexOf(search, start) !== -1;
	  }
	}

	createErrorType('ERR_INVALID_OPT_VALUE', function (name, value) {
	  return 'The value "' + value + '" is invalid for option "' + name + '"'
	}, TypeError);
	createErrorType('ERR_INVALID_ARG_TYPE', function (name, expected, actual) {
	  // determiner: 'must be' or 'must not be'
	  let determiner;
	  if (typeof expected === 'string' && startsWith(expected, 'not ')) {
	    determiner = 'must not be';
	    expected = expected.replace(/^not /, '');
	  } else {
	    determiner = 'must be';
	  }

	  let msg;
	  if (endsWith(name, ' argument')) {
	    // For cases like 'first argument'
	    msg = `The ${name} ${determiner} ${oneOf(expected, 'type')}`;
	  } else {
	    const type = includes(name, '.') ? 'property' : 'argument';
	    msg = `The "${name}" ${type} ${determiner} ${oneOf(expected, 'type')}`;
	  }

	  msg += `. Received type ${typeof actual}`;
	  return msg;
	}, TypeError);
	createErrorType('ERR_STREAM_PUSH_AFTER_EOF', 'stream.push() after EOF');
	createErrorType('ERR_METHOD_NOT_IMPLEMENTED', function (name) {
	  return 'The ' + name + ' method is not implemented'
	});
	createErrorType('ERR_STREAM_PREMATURE_CLOSE', 'Premature close');
	createErrorType('ERR_STREAM_DESTROYED', function (name) {
	  return 'Cannot call ' + name + ' after a stream was destroyed';
	});
	createErrorType('ERR_MULTIPLE_CALLBACK', 'Callback called multiple times');
	createErrorType('ERR_STREAM_CANNOT_PIPE', 'Cannot pipe, not readable');
	createErrorType('ERR_STREAM_WRITE_AFTER_END', 'write after end');
	createErrorType('ERR_STREAM_NULL_VALUES', 'May not write null values to stream', TypeError);
	createErrorType('ERR_UNKNOWN_ENCODING', function (arg) {
	  return 'Unknown encoding: ' + arg
	}, TypeError);
	createErrorType('ERR_STREAM_UNSHIFT_AFTER_END_EVENT', 'stream.unshift() after end event');

	errors.codes = codes;
	return errors;
}

var state;
var hasRequiredState;

function requireState () {
	if (hasRequiredState) return state;
	hasRequiredState = 1;

	var ERR_INVALID_OPT_VALUE = requireErrors().codes.ERR_INVALID_OPT_VALUE;

	function highWaterMarkFrom(options, isDuplex, duplexKey) {
	  return options.highWaterMark != null ? options.highWaterMark : isDuplex ? options[duplexKey] : null;
	}

	function getHighWaterMark(state, options, duplexKey, isDuplex) {
	  var hwm = highWaterMarkFrom(options, isDuplex, duplexKey);

	  if (hwm != null) {
	    if (!(isFinite(hwm) && Math.floor(hwm) === hwm) || hwm < 0) {
	      var name = isDuplex ? duplexKey : 'highWaterMark';
	      throw new ERR_INVALID_OPT_VALUE(name, hwm);
	    }

	    return Math.floor(hwm);
	  } // Default value


	  return state.objectMode ? 16 : 16 * 1024;
	}

	state = {
	  getHighWaterMark: getHighWaterMark
	};
	return state;
}

var inherits = {exports: {}};

var inherits_browser = {exports: {}};

var hasRequiredInherits_browser;

function requireInherits_browser () {
	if (hasRequiredInherits_browser) return inherits_browser.exports;
	hasRequiredInherits_browser = 1;
	if (typeof Object.create === 'function') {
	  // implementation from standard node.js 'util' module
	  inherits_browser.exports = function inherits(ctor, superCtor) {
	    if (superCtor) {
	      ctor.super_ = superCtor;
	      ctor.prototype = Object.create(superCtor.prototype, {
	        constructor: {
	          value: ctor,
	          enumerable: false,
	          writable: true,
	          configurable: true
	        }
	      });
	    }
	  };
	} else {
	  // old school shim for old browsers
	  inherits_browser.exports = function inherits(ctor, superCtor) {
	    if (superCtor) {
	      ctor.super_ = superCtor;
	      var TempCtor = function () {};
	      TempCtor.prototype = superCtor.prototype;
	      ctor.prototype = new TempCtor();
	      ctor.prototype.constructor = ctor;
	    }
	  };
	}
	return inherits_browser.exports;
}

var hasRequiredInherits;

function requireInherits () {
	if (hasRequiredInherits) return inherits.exports;
	hasRequiredInherits = 1;
	try {
	  var util = require('util');
	  /* istanbul ignore next */
	  if (typeof util.inherits !== 'function') throw '';
	  inherits.exports = util.inherits;
	} catch (e) {
	  /* istanbul ignore next */
	  inherits.exports = requireInherits_browser();
	}
	return inherits.exports;
}

var node;
var hasRequiredNode;

function requireNode () {
	if (hasRequiredNode) return node;
	hasRequiredNode = 1;
	/**
	 * For Node.js, simply re-export the core `util.deprecate` function.
	 */

	node = require$$1__default["default"].deprecate;
	return node;
}

var _stream_writable;
var hasRequired_stream_writable;

function require_stream_writable () {
	if (hasRequired_stream_writable) return _stream_writable;
	hasRequired_stream_writable = 1;

	_stream_writable = Writable;
	// there will be only 2 of these for each stream


	function CorkedRequest(state) {
	  var _this = this;

	  this.next = null;
	  this.entry = null;

	  this.finish = function () {
	    onCorkedFinish(_this, state);
	  };
	}
	/* </replacement> */

	/*<replacement>*/


	var Duplex;
	/*</replacement>*/

	Writable.WritableState = WritableState;
	/*<replacement>*/

	var internalUtil = {
	  deprecate: requireNode()
	};
	/*</replacement>*/

	/*<replacement>*/

	var Stream = requireStream();
	/*</replacement>*/


	var Buffer = require$$0__default$4["default"].Buffer;

	var OurUint8Array = commonjsGlobal.Uint8Array || function () {};

	function _uint8ArrayToBuffer(chunk) {
	  return Buffer.from(chunk);
	}

	function _isUint8Array(obj) {
	  return Buffer.isBuffer(obj) || obj instanceof OurUint8Array;
	}

	var destroyImpl = requireDestroy();

	var _require = requireState(),
	    getHighWaterMark = _require.getHighWaterMark;

	var _require$codes = requireErrors().codes,
	    ERR_INVALID_ARG_TYPE = _require$codes.ERR_INVALID_ARG_TYPE,
	    ERR_METHOD_NOT_IMPLEMENTED = _require$codes.ERR_METHOD_NOT_IMPLEMENTED,
	    ERR_MULTIPLE_CALLBACK = _require$codes.ERR_MULTIPLE_CALLBACK,
	    ERR_STREAM_CANNOT_PIPE = _require$codes.ERR_STREAM_CANNOT_PIPE,
	    ERR_STREAM_DESTROYED = _require$codes.ERR_STREAM_DESTROYED,
	    ERR_STREAM_NULL_VALUES = _require$codes.ERR_STREAM_NULL_VALUES,
	    ERR_STREAM_WRITE_AFTER_END = _require$codes.ERR_STREAM_WRITE_AFTER_END,
	    ERR_UNKNOWN_ENCODING = _require$codes.ERR_UNKNOWN_ENCODING;

	var errorOrDestroy = destroyImpl.errorOrDestroy;

	requireInherits()(Writable, Stream);

	function nop() {}

	function WritableState(options, stream, isDuplex) {
	  Duplex = Duplex || require_stream_duplex();
	  options = options || {}; // Duplex streams are both readable and writable, but share
	  // the same options object.
	  // However, some cases require setting options to different
	  // values for the readable and the writable sides of the duplex stream,
	  // e.g. options.readableObjectMode vs. options.writableObjectMode, etc.

	  if (typeof isDuplex !== 'boolean') isDuplex = stream instanceof Duplex; // object stream flag to indicate whether or not this stream
	  // contains buffers or objects.

	  this.objectMode = !!options.objectMode;
	  if (isDuplex) this.objectMode = this.objectMode || !!options.writableObjectMode; // the point at which write() starts returning false
	  // Note: 0 is a valid value, means that we always return false if
	  // the entire buffer is not flushed immediately on write()

	  this.highWaterMark = getHighWaterMark(this, options, 'writableHighWaterMark', isDuplex); // if _final has been called

	  this.finalCalled = false; // drain event flag.

	  this.needDrain = false; // at the start of calling end()

	  this.ending = false; // when end() has been called, and returned

	  this.ended = false; // when 'finish' is emitted

	  this.finished = false; // has it been destroyed

	  this.destroyed = false; // should we decode strings into buffers before passing to _write?
	  // this is here so that some node-core streams can optimize string
	  // handling at a lower level.

	  var noDecode = options.decodeStrings === false;
	  this.decodeStrings = !noDecode; // Crypto is kind of old and crusty.  Historically, its default string
	  // encoding is 'binary' so we have to make this configurable.
	  // Everything else in the universe uses 'utf8', though.

	  this.defaultEncoding = options.defaultEncoding || 'utf8'; // not an actual buffer we keep track of, but a measurement
	  // of how much we're waiting to get pushed to some underlying
	  // socket or file.

	  this.length = 0; // a flag to see when we're in the middle of a write.

	  this.writing = false; // when true all writes will be buffered until .uncork() call

	  this.corked = 0; // a flag to be able to tell if the onwrite cb is called immediately,
	  // or on a later tick.  We set this to true at first, because any
	  // actions that shouldn't happen until "later" should generally also
	  // not happen before the first write call.

	  this.sync = true; // a flag to know if we're processing previously buffered items, which
	  // may call the _write() callback in the same tick, so that we don't
	  // end up in an overlapped onwrite situation.

	  this.bufferProcessing = false; // the callback that's passed to _write(chunk,cb)

	  this.onwrite = function (er) {
	    onwrite(stream, er);
	  }; // the callback that the user supplies to write(chunk,encoding,cb)


	  this.writecb = null; // the amount that is being written when _write is called.

	  this.writelen = 0;
	  this.bufferedRequest = null;
	  this.lastBufferedRequest = null; // number of pending user-supplied write callbacks
	  // this must be 0 before 'finish' can be emitted

	  this.pendingcb = 0; // emit prefinish if the only thing we're waiting for is _write cbs
	  // This is relevant for synchronous Transform streams

	  this.prefinished = false; // True if the error was already emitted and should not be thrown again

	  this.errorEmitted = false; // Should close be emitted on destroy. Defaults to true.

	  this.emitClose = options.emitClose !== false; // Should .destroy() be called after 'finish' (and potentially 'end')

	  this.autoDestroy = !!options.autoDestroy; // count buffered requests

	  this.bufferedRequestCount = 0; // allocate the first CorkedRequest, there is always
	  // one allocated and free to use, and we maintain at most two

	  this.corkedRequestsFree = new CorkedRequest(this);
	}

	WritableState.prototype.getBuffer = function getBuffer() {
	  var current = this.bufferedRequest;
	  var out = [];

	  while (current) {
	    out.push(current);
	    current = current.next;
	  }

	  return out;
	};

	(function () {
	  try {
	    Object.defineProperty(WritableState.prototype, 'buffer', {
	      get: internalUtil.deprecate(function writableStateBufferGetter() {
	        return this.getBuffer();
	      }, '_writableState.buffer is deprecated. Use _writableState.getBuffer ' + 'instead.', 'DEP0003')
	    });
	  } catch (_) {}
	})(); // Test _writableState for inheritance to account for Duplex streams,
	// whose prototype chain only points to Readable.


	var realHasInstance;

	if (typeof Symbol === 'function' && Symbol.hasInstance && typeof Function.prototype[Symbol.hasInstance] === 'function') {
	  realHasInstance = Function.prototype[Symbol.hasInstance];
	  Object.defineProperty(Writable, Symbol.hasInstance, {
	    value: function value(object) {
	      if (realHasInstance.call(this, object)) return true;
	      if (this !== Writable) return false;
	      return object && object._writableState instanceof WritableState;
	    }
	  });
	} else {
	  realHasInstance = function realHasInstance(object) {
	    return object instanceof this;
	  };
	}

	function Writable(options) {
	  Duplex = Duplex || require_stream_duplex(); // Writable ctor is applied to Duplexes, too.
	  // `realHasInstance` is necessary because using plain `instanceof`
	  // would return false, as no `_writableState` property is attached.
	  // Trying to use the custom `instanceof` for Writable here will also break the
	  // Node.js LazyTransform implementation, which has a non-trivial getter for
	  // `_writableState` that would lead to infinite recursion.
	  // Checking for a Stream.Duplex instance is faster here instead of inside
	  // the WritableState constructor, at least with V8 6.5

	  var isDuplex = this instanceof Duplex;
	  if (!isDuplex && !realHasInstance.call(Writable, this)) return new Writable(options);
	  this._writableState = new WritableState(options, this, isDuplex); // legacy.

	  this.writable = true;

	  if (options) {
	    if (typeof options.write === 'function') this._write = options.write;
	    if (typeof options.writev === 'function') this._writev = options.writev;
	    if (typeof options.destroy === 'function') this._destroy = options.destroy;
	    if (typeof options.final === 'function') this._final = options.final;
	  }

	  Stream.call(this);
	} // Otherwise people can pipe Writable streams, which is just wrong.


	Writable.prototype.pipe = function () {
	  errorOrDestroy(this, new ERR_STREAM_CANNOT_PIPE());
	};

	function writeAfterEnd(stream, cb) {
	  var er = new ERR_STREAM_WRITE_AFTER_END(); // TODO: defer error events consistently everywhere, not just the cb

	  errorOrDestroy(stream, er);
	  process.nextTick(cb, er);
	} // Checks that a user-supplied chunk is valid, especially for the particular
	// mode the stream is in. Currently this means that `null` is never accepted
	// and undefined/non-string values are only allowed in object mode.


	function validChunk(stream, state, chunk, cb) {
	  var er;

	  if (chunk === null) {
	    er = new ERR_STREAM_NULL_VALUES();
	  } else if (typeof chunk !== 'string' && !state.objectMode) {
	    er = new ERR_INVALID_ARG_TYPE('chunk', ['string', 'Buffer'], chunk);
	  }

	  if (er) {
	    errorOrDestroy(stream, er);
	    process.nextTick(cb, er);
	    return false;
	  }

	  return true;
	}

	Writable.prototype.write = function (chunk, encoding, cb) {
	  var state = this._writableState;
	  var ret = false;

	  var isBuf = !state.objectMode && _isUint8Array(chunk);

	  if (isBuf && !Buffer.isBuffer(chunk)) {
	    chunk = _uint8ArrayToBuffer(chunk);
	  }

	  if (typeof encoding === 'function') {
	    cb = encoding;
	    encoding = null;
	  }

	  if (isBuf) encoding = 'buffer';else if (!encoding) encoding = state.defaultEncoding;
	  if (typeof cb !== 'function') cb = nop;
	  if (state.ending) writeAfterEnd(this, cb);else if (isBuf || validChunk(this, state, chunk, cb)) {
	    state.pendingcb++;
	    ret = writeOrBuffer(this, state, isBuf, chunk, encoding, cb);
	  }
	  return ret;
	};

	Writable.prototype.cork = function () {
	  this._writableState.corked++;
	};

	Writable.prototype.uncork = function () {
	  var state = this._writableState;

	  if (state.corked) {
	    state.corked--;
	    if (!state.writing && !state.corked && !state.bufferProcessing && state.bufferedRequest) clearBuffer(this, state);
	  }
	};

	Writable.prototype.setDefaultEncoding = function setDefaultEncoding(encoding) {
	  // node::ParseEncoding() requires lower case.
	  if (typeof encoding === 'string') encoding = encoding.toLowerCase();
	  if (!(['hex', 'utf8', 'utf-8', 'ascii', 'binary', 'base64', 'ucs2', 'ucs-2', 'utf16le', 'utf-16le', 'raw'].indexOf((encoding + '').toLowerCase()) > -1)) throw new ERR_UNKNOWN_ENCODING(encoding);
	  this._writableState.defaultEncoding = encoding;
	  return this;
	};

	Object.defineProperty(Writable.prototype, 'writableBuffer', {
	  // making it explicit this property is not enumerable
	  // because otherwise some prototype manipulation in
	  // userland will fail
	  enumerable: false,
	  get: function get() {
	    return this._writableState && this._writableState.getBuffer();
	  }
	});

	function decodeChunk(state, chunk, encoding) {
	  if (!state.objectMode && state.decodeStrings !== false && typeof chunk === 'string') {
	    chunk = Buffer.from(chunk, encoding);
	  }

	  return chunk;
	}

	Object.defineProperty(Writable.prototype, 'writableHighWaterMark', {
	  // making it explicit this property is not enumerable
	  // because otherwise some prototype manipulation in
	  // userland will fail
	  enumerable: false,
	  get: function get() {
	    return this._writableState.highWaterMark;
	  }
	}); // if we're already writing something, then just put this
	// in the queue, and wait our turn.  Otherwise, call _write
	// If we return false, then we need a drain event, so set that flag.

	function writeOrBuffer(stream, state, isBuf, chunk, encoding, cb) {
	  if (!isBuf) {
	    var newChunk = decodeChunk(state, chunk, encoding);

	    if (chunk !== newChunk) {
	      isBuf = true;
	      encoding = 'buffer';
	      chunk = newChunk;
	    }
	  }

	  var len = state.objectMode ? 1 : chunk.length;
	  state.length += len;
	  var ret = state.length < state.highWaterMark; // we must ensure that previous needDrain will not be reset to false.

	  if (!ret) state.needDrain = true;

	  if (state.writing || state.corked) {
	    var last = state.lastBufferedRequest;
	    state.lastBufferedRequest = {
	      chunk: chunk,
	      encoding: encoding,
	      isBuf: isBuf,
	      callback: cb,
	      next: null
	    };

	    if (last) {
	      last.next = state.lastBufferedRequest;
	    } else {
	      state.bufferedRequest = state.lastBufferedRequest;
	    }

	    state.bufferedRequestCount += 1;
	  } else {
	    doWrite(stream, state, false, len, chunk, encoding, cb);
	  }

	  return ret;
	}

	function doWrite(stream, state, writev, len, chunk, encoding, cb) {
	  state.writelen = len;
	  state.writecb = cb;
	  state.writing = true;
	  state.sync = true;
	  if (state.destroyed) state.onwrite(new ERR_STREAM_DESTROYED('write'));else if (writev) stream._writev(chunk, state.onwrite);else stream._write(chunk, encoding, state.onwrite);
	  state.sync = false;
	}

	function onwriteError(stream, state, sync, er, cb) {
	  --state.pendingcb;

	  if (sync) {
	    // defer the callback if we are being called synchronously
	    // to avoid piling up things on the stack
	    process.nextTick(cb, er); // this can emit finish, and it will always happen
	    // after error

	    process.nextTick(finishMaybe, stream, state);
	    stream._writableState.errorEmitted = true;
	    errorOrDestroy(stream, er);
	  } else {
	    // the caller expect this to happen before if
	    // it is async
	    cb(er);
	    stream._writableState.errorEmitted = true;
	    errorOrDestroy(stream, er); // this can emit finish, but finish must
	    // always follow error

	    finishMaybe(stream, state);
	  }
	}

	function onwriteStateUpdate(state) {
	  state.writing = false;
	  state.writecb = null;
	  state.length -= state.writelen;
	  state.writelen = 0;
	}

	function onwrite(stream, er) {
	  var state = stream._writableState;
	  var sync = state.sync;
	  var cb = state.writecb;
	  if (typeof cb !== 'function') throw new ERR_MULTIPLE_CALLBACK();
	  onwriteStateUpdate(state);
	  if (er) onwriteError(stream, state, sync, er, cb);else {
	    // Check if we're actually ready to finish, but don't emit yet
	    var finished = needFinish(state) || stream.destroyed;

	    if (!finished && !state.corked && !state.bufferProcessing && state.bufferedRequest) {
	      clearBuffer(stream, state);
	    }

	    if (sync) {
	      process.nextTick(afterWrite, stream, state, finished, cb);
	    } else {
	      afterWrite(stream, state, finished, cb);
	    }
	  }
	}

	function afterWrite(stream, state, finished, cb) {
	  if (!finished) onwriteDrain(stream, state);
	  state.pendingcb--;
	  cb();
	  finishMaybe(stream, state);
	} // Must force callback to be called on nextTick, so that we don't
	// emit 'drain' before the write() consumer gets the 'false' return
	// value, and has a chance to attach a 'drain' listener.


	function onwriteDrain(stream, state) {
	  if (state.length === 0 && state.needDrain) {
	    state.needDrain = false;
	    stream.emit('drain');
	  }
	} // if there's something in the buffer waiting, then process it


	function clearBuffer(stream, state) {
	  state.bufferProcessing = true;
	  var entry = state.bufferedRequest;

	  if (stream._writev && entry && entry.next) {
	    // Fast case, write everything using _writev()
	    var l = state.bufferedRequestCount;
	    var buffer = new Array(l);
	    var holder = state.corkedRequestsFree;
	    holder.entry = entry;
	    var count = 0;
	    var allBuffers = true;

	    while (entry) {
	      buffer[count] = entry;
	      if (!entry.isBuf) allBuffers = false;
	      entry = entry.next;
	      count += 1;
	    }

	    buffer.allBuffers = allBuffers;
	    doWrite(stream, state, true, state.length, buffer, '', holder.finish); // doWrite is almost always async, defer these to save a bit of time
	    // as the hot path ends with doWrite

	    state.pendingcb++;
	    state.lastBufferedRequest = null;

	    if (holder.next) {
	      state.corkedRequestsFree = holder.next;
	      holder.next = null;
	    } else {
	      state.corkedRequestsFree = new CorkedRequest(state);
	    }

	    state.bufferedRequestCount = 0;
	  } else {
	    // Slow case, write chunks one-by-one
	    while (entry) {
	      var chunk = entry.chunk;
	      var encoding = entry.encoding;
	      var cb = entry.callback;
	      var len = state.objectMode ? 1 : chunk.length;
	      doWrite(stream, state, false, len, chunk, encoding, cb);
	      entry = entry.next;
	      state.bufferedRequestCount--; // if we didn't call the onwrite immediately, then
	      // it means that we need to wait until it does.
	      // also, that means that the chunk and cb are currently
	      // being processed, so move the buffer counter past them.

	      if (state.writing) {
	        break;
	      }
	    }

	    if (entry === null) state.lastBufferedRequest = null;
	  }

	  state.bufferedRequest = entry;
	  state.bufferProcessing = false;
	}

	Writable.prototype._write = function (chunk, encoding, cb) {
	  cb(new ERR_METHOD_NOT_IMPLEMENTED('_write()'));
	};

	Writable.prototype._writev = null;

	Writable.prototype.end = function (chunk, encoding, cb) {
	  var state = this._writableState;

	  if (typeof chunk === 'function') {
	    cb = chunk;
	    chunk = null;
	    encoding = null;
	  } else if (typeof encoding === 'function') {
	    cb = encoding;
	    encoding = null;
	  }

	  if (chunk !== null && chunk !== undefined) this.write(chunk, encoding); // .end() fully uncorks

	  if (state.corked) {
	    state.corked = 1;
	    this.uncork();
	  } // ignore unnecessary end() calls.


	  if (!state.ending) endWritable(this, state, cb);
	  return this;
	};

	Object.defineProperty(Writable.prototype, 'writableLength', {
	  // making it explicit this property is not enumerable
	  // because otherwise some prototype manipulation in
	  // userland will fail
	  enumerable: false,
	  get: function get() {
	    return this._writableState.length;
	  }
	});

	function needFinish(state) {
	  return state.ending && state.length === 0 && state.bufferedRequest === null && !state.finished && !state.writing;
	}

	function callFinal(stream, state) {
	  stream._final(function (err) {
	    state.pendingcb--;

	    if (err) {
	      errorOrDestroy(stream, err);
	    }

	    state.prefinished = true;
	    stream.emit('prefinish');
	    finishMaybe(stream, state);
	  });
	}

	function prefinish(stream, state) {
	  if (!state.prefinished && !state.finalCalled) {
	    if (typeof stream._final === 'function' && !state.destroyed) {
	      state.pendingcb++;
	      state.finalCalled = true;
	      process.nextTick(callFinal, stream, state);
	    } else {
	      state.prefinished = true;
	      stream.emit('prefinish');
	    }
	  }
	}

	function finishMaybe(stream, state) {
	  var need = needFinish(state);

	  if (need) {
	    prefinish(stream, state);

	    if (state.pendingcb === 0) {
	      state.finished = true;
	      stream.emit('finish');

	      if (state.autoDestroy) {
	        // In case of duplex streams we need a way to detect
	        // if the readable side is ready for autoDestroy as well
	        var rState = stream._readableState;

	        if (!rState || rState.autoDestroy && rState.endEmitted) {
	          stream.destroy();
	        }
	      }
	    }
	  }

	  return need;
	}

	function endWritable(stream, state, cb) {
	  state.ending = true;
	  finishMaybe(stream, state);

	  if (cb) {
	    if (state.finished) process.nextTick(cb);else stream.once('finish', cb);
	  }

	  state.ended = true;
	  stream.writable = false;
	}

	function onCorkedFinish(corkReq, state, err) {
	  var entry = corkReq.entry;
	  corkReq.entry = null;

	  while (entry) {
	    var cb = entry.callback;
	    state.pendingcb--;
	    cb(err);
	    entry = entry.next;
	  } // reuse the free corkReq.


	  state.corkedRequestsFree.next = corkReq;
	}

	Object.defineProperty(Writable.prototype, 'destroyed', {
	  // making it explicit this property is not enumerable
	  // because otherwise some prototype manipulation in
	  // userland will fail
	  enumerable: false,
	  get: function get() {
	    if (this._writableState === undefined) {
	      return false;
	    }

	    return this._writableState.destroyed;
	  },
	  set: function set(value) {
	    // we ignore the value if the stream
	    // has not been initialized yet
	    if (!this._writableState) {
	      return;
	    } // backward compatibility, the user is explicitly
	    // managing destroyed


	    this._writableState.destroyed = value;
	  }
	});
	Writable.prototype.destroy = destroyImpl.destroy;
	Writable.prototype._undestroy = destroyImpl.undestroy;

	Writable.prototype._destroy = function (err, cb) {
	  cb(err);
	};
	return _stream_writable;
}

var _stream_duplex;
var hasRequired_stream_duplex;

function require_stream_duplex () {
	if (hasRequired_stream_duplex) return _stream_duplex;
	hasRequired_stream_duplex = 1;
	/*<replacement>*/

	var objectKeys = Object.keys || function (obj) {
	  var keys = [];

	  for (var key in obj) {
	    keys.push(key);
	  }

	  return keys;
	};
	/*</replacement>*/


	_stream_duplex = Duplex;

	var Readable = require_stream_readable();

	var Writable = require_stream_writable();

	requireInherits()(Duplex, Readable);

	{
	  // Allow the keys array to be GC'ed.
	  var keys = objectKeys(Writable.prototype);

	  for (var v = 0; v < keys.length; v++) {
	    var method = keys[v];
	    if (!Duplex.prototype[method]) Duplex.prototype[method] = Writable.prototype[method];
	  }
	}

	function Duplex(options) {
	  if (!(this instanceof Duplex)) return new Duplex(options);
	  Readable.call(this, options);
	  Writable.call(this, options);
	  this.allowHalfOpen = true;

	  if (options) {
	    if (options.readable === false) this.readable = false;
	    if (options.writable === false) this.writable = false;

	    if (options.allowHalfOpen === false) {
	      this.allowHalfOpen = false;
	      this.once('end', onend);
	    }
	  }
	}

	Object.defineProperty(Duplex.prototype, 'writableHighWaterMark', {
	  // making it explicit this property is not enumerable
	  // because otherwise some prototype manipulation in
	  // userland will fail
	  enumerable: false,
	  get: function get() {
	    return this._writableState.highWaterMark;
	  }
	});
	Object.defineProperty(Duplex.prototype, 'writableBuffer', {
	  // making it explicit this property is not enumerable
	  // because otherwise some prototype manipulation in
	  // userland will fail
	  enumerable: false,
	  get: function get() {
	    return this._writableState && this._writableState.getBuffer();
	  }
	});
	Object.defineProperty(Duplex.prototype, 'writableLength', {
	  // making it explicit this property is not enumerable
	  // because otherwise some prototype manipulation in
	  // userland will fail
	  enumerable: false,
	  get: function get() {
	    return this._writableState.length;
	  }
	}); // the no-half-open enforcer

	function onend() {
	  // If the writable side ended, then we're ok.
	  if (this._writableState.ended) return; // no more data can be written.
	  // But allow more writes to happen in this tick.

	  process.nextTick(onEndNT, this);
	}

	function onEndNT(self) {
	  self.end();
	}

	Object.defineProperty(Duplex.prototype, 'destroyed', {
	  // making it explicit this property is not enumerable
	  // because otherwise some prototype manipulation in
	  // userland will fail
	  enumerable: false,
	  get: function get() {
	    if (this._readableState === undefined || this._writableState === undefined) {
	      return false;
	    }

	    return this._readableState.destroyed && this._writableState.destroyed;
	  },
	  set: function set(value) {
	    // we ignore the value if the stream
	    // has not been initialized yet
	    if (this._readableState === undefined || this._writableState === undefined) {
	      return;
	    } // backward compatibility, the user is explicitly
	    // managing destroyed


	    this._readableState.destroyed = value;
	    this._writableState.destroyed = value;
	  }
	});
	return _stream_duplex;
}

var string_decoder = {};

var safeBuffer = {exports: {}};

/*! safe-buffer. MIT License. Feross Aboukhadijeh <https://feross.org/opensource> */

(function (module, exports) {
	/* eslint-disable node/no-deprecated-api */
	var buffer = require$$0__default$4["default"];
	var Buffer = buffer.Buffer;

	// alternative to using Object.keys for old browsers
	function copyProps (src, dst) {
	  for (var key in src) {
	    dst[key] = src[key];
	  }
	}
	if (Buffer.from && Buffer.alloc && Buffer.allocUnsafe && Buffer.allocUnsafeSlow) {
	  module.exports = buffer;
	} else {
	  // Copy properties from require('buffer')
	  copyProps(buffer, exports);
	  exports.Buffer = SafeBuffer;
	}

	function SafeBuffer (arg, encodingOrOffset, length) {
	  return Buffer(arg, encodingOrOffset, length)
	}

	SafeBuffer.prototype = Object.create(Buffer.prototype);

	// Copy static methods from Buffer
	copyProps(Buffer, SafeBuffer);

	SafeBuffer.from = function (arg, encodingOrOffset, length) {
	  if (typeof arg === 'number') {
	    throw new TypeError('Argument must not be a number')
	  }
	  return Buffer(arg, encodingOrOffset, length)
	};

	SafeBuffer.alloc = function (size, fill, encoding) {
	  if (typeof size !== 'number') {
	    throw new TypeError('Argument must be a number')
	  }
	  var buf = Buffer(size);
	  if (fill !== undefined) {
	    if (typeof encoding === 'string') {
	      buf.fill(fill, encoding);
	    } else {
	      buf.fill(fill);
	    }
	  } else {
	    buf.fill(0);
	  }
	  return buf
	};

	SafeBuffer.allocUnsafe = function (size) {
	  if (typeof size !== 'number') {
	    throw new TypeError('Argument must be a number')
	  }
	  return Buffer(size)
	};

	SafeBuffer.allocUnsafeSlow = function (size) {
	  if (typeof size !== 'number') {
	    throw new TypeError('Argument must be a number')
	  }
	  return buffer.SlowBuffer(size)
	};
} (safeBuffer, safeBuffer.exports));

var hasRequiredString_decoder;

function requireString_decoder () {
	if (hasRequiredString_decoder) return string_decoder;
	hasRequiredString_decoder = 1;

	/*<replacement>*/

	var Buffer = safeBuffer.exports.Buffer;
	/*</replacement>*/

	var isEncoding = Buffer.isEncoding || function (encoding) {
	  encoding = '' + encoding;
	  switch (encoding && encoding.toLowerCase()) {
	    case 'hex':case 'utf8':case 'utf-8':case 'ascii':case 'binary':case 'base64':case 'ucs2':case 'ucs-2':case 'utf16le':case 'utf-16le':case 'raw':
	      return true;
	    default:
	      return false;
	  }
	};

	function _normalizeEncoding(enc) {
	  if (!enc) return 'utf8';
	  var retried;
	  while (true) {
	    switch (enc) {
	      case 'utf8':
	      case 'utf-8':
	        return 'utf8';
	      case 'ucs2':
	      case 'ucs-2':
	      case 'utf16le':
	      case 'utf-16le':
	        return 'utf16le';
	      case 'latin1':
	      case 'binary':
	        return 'latin1';
	      case 'base64':
	      case 'ascii':
	      case 'hex':
	        return enc;
	      default:
	        if (retried) return; // undefined
	        enc = ('' + enc).toLowerCase();
	        retried = true;
	    }
	  }
	}
	// Do not cache `Buffer.isEncoding` when checking encoding names as some
	// modules monkey-patch it to support additional encodings
	function normalizeEncoding(enc) {
	  var nenc = _normalizeEncoding(enc);
	  if (typeof nenc !== 'string' && (Buffer.isEncoding === isEncoding || !isEncoding(enc))) throw new Error('Unknown encoding: ' + enc);
	  return nenc || enc;
	}

	// StringDecoder provides an interface for efficiently splitting a series of
	// buffers into a series of JS strings without breaking apart multi-byte
	// characters.
	string_decoder.StringDecoder = StringDecoder;
	function StringDecoder(encoding) {
	  this.encoding = normalizeEncoding(encoding);
	  var nb;
	  switch (this.encoding) {
	    case 'utf16le':
	      this.text = utf16Text;
	      this.end = utf16End;
	      nb = 4;
	      break;
	    case 'utf8':
	      this.fillLast = utf8FillLast;
	      nb = 4;
	      break;
	    case 'base64':
	      this.text = base64Text;
	      this.end = base64End;
	      nb = 3;
	      break;
	    default:
	      this.write = simpleWrite;
	      this.end = simpleEnd;
	      return;
	  }
	  this.lastNeed = 0;
	  this.lastTotal = 0;
	  this.lastChar = Buffer.allocUnsafe(nb);
	}

	StringDecoder.prototype.write = function (buf) {
	  if (buf.length === 0) return '';
	  var r;
	  var i;
	  if (this.lastNeed) {
	    r = this.fillLast(buf);
	    if (r === undefined) return '';
	    i = this.lastNeed;
	    this.lastNeed = 0;
	  } else {
	    i = 0;
	  }
	  if (i < buf.length) return r ? r + this.text(buf, i) : this.text(buf, i);
	  return r || '';
	};

	StringDecoder.prototype.end = utf8End;

	// Returns only complete characters in a Buffer
	StringDecoder.prototype.text = utf8Text;

	// Attempts to complete a partial non-UTF-8 character using bytes from a Buffer
	StringDecoder.prototype.fillLast = function (buf) {
	  if (this.lastNeed <= buf.length) {
	    buf.copy(this.lastChar, this.lastTotal - this.lastNeed, 0, this.lastNeed);
	    return this.lastChar.toString(this.encoding, 0, this.lastTotal);
	  }
	  buf.copy(this.lastChar, this.lastTotal - this.lastNeed, 0, buf.length);
	  this.lastNeed -= buf.length;
	};

	// Checks the type of a UTF-8 byte, whether it's ASCII, a leading byte, or a
	// continuation byte. If an invalid byte is detected, -2 is returned.
	function utf8CheckByte(byte) {
	  if (byte <= 0x7F) return 0;else if (byte >> 5 === 0x06) return 2;else if (byte >> 4 === 0x0E) return 3;else if (byte >> 3 === 0x1E) return 4;
	  return byte >> 6 === 0x02 ? -1 : -2;
	}

	// Checks at most 3 bytes at the end of a Buffer in order to detect an
	// incomplete multi-byte UTF-8 character. The total number of bytes (2, 3, or 4)
	// needed to complete the UTF-8 character (if applicable) are returned.
	function utf8CheckIncomplete(self, buf, i) {
	  var j = buf.length - 1;
	  if (j < i) return 0;
	  var nb = utf8CheckByte(buf[j]);
	  if (nb >= 0) {
	    if (nb > 0) self.lastNeed = nb - 1;
	    return nb;
	  }
	  if (--j < i || nb === -2) return 0;
	  nb = utf8CheckByte(buf[j]);
	  if (nb >= 0) {
	    if (nb > 0) self.lastNeed = nb - 2;
	    return nb;
	  }
	  if (--j < i || nb === -2) return 0;
	  nb = utf8CheckByte(buf[j]);
	  if (nb >= 0) {
	    if (nb > 0) {
	      if (nb === 2) nb = 0;else self.lastNeed = nb - 3;
	    }
	    return nb;
	  }
	  return 0;
	}

	// Validates as many continuation bytes for a multi-byte UTF-8 character as
	// needed or are available. If we see a non-continuation byte where we expect
	// one, we "replace" the validated continuation bytes we've seen so far with
	// a single UTF-8 replacement character ('\ufffd'), to match v8's UTF-8 decoding
	// behavior. The continuation byte check is included three times in the case
	// where all of the continuation bytes for a character exist in the same buffer.
	// It is also done this way as a slight performance increase instead of using a
	// loop.
	function utf8CheckExtraBytes(self, buf, p) {
	  if ((buf[0] & 0xC0) !== 0x80) {
	    self.lastNeed = 0;
	    return '\ufffd';
	  }
	  if (self.lastNeed > 1 && buf.length > 1) {
	    if ((buf[1] & 0xC0) !== 0x80) {
	      self.lastNeed = 1;
	      return '\ufffd';
	    }
	    if (self.lastNeed > 2 && buf.length > 2) {
	      if ((buf[2] & 0xC0) !== 0x80) {
	        self.lastNeed = 2;
	        return '\ufffd';
	      }
	    }
	  }
	}

	// Attempts to complete a multi-byte UTF-8 character using bytes from a Buffer.
	function utf8FillLast(buf) {
	  var p = this.lastTotal - this.lastNeed;
	  var r = utf8CheckExtraBytes(this, buf);
	  if (r !== undefined) return r;
	  if (this.lastNeed <= buf.length) {
	    buf.copy(this.lastChar, p, 0, this.lastNeed);
	    return this.lastChar.toString(this.encoding, 0, this.lastTotal);
	  }
	  buf.copy(this.lastChar, p, 0, buf.length);
	  this.lastNeed -= buf.length;
	}

	// Returns all complete UTF-8 characters in a Buffer. If the Buffer ended on a
	// partial character, the character's bytes are buffered until the required
	// number of bytes are available.
	function utf8Text(buf, i) {
	  var total = utf8CheckIncomplete(this, buf, i);
	  if (!this.lastNeed) return buf.toString('utf8', i);
	  this.lastTotal = total;
	  var end = buf.length - (total - this.lastNeed);
	  buf.copy(this.lastChar, 0, end);
	  return buf.toString('utf8', i, end);
	}

	// For UTF-8, a replacement character is added when ending on a partial
	// character.
	function utf8End(buf) {
	  var r = buf && buf.length ? this.write(buf) : '';
	  if (this.lastNeed) return r + '\ufffd';
	  return r;
	}

	// UTF-16LE typically needs two bytes per character, but even if we have an even
	// number of bytes available, we need to check if we end on a leading/high
	// surrogate. In that case, we need to wait for the next two bytes in order to
	// decode the last character properly.
	function utf16Text(buf, i) {
	  if ((buf.length - i) % 2 === 0) {
	    var r = buf.toString('utf16le', i);
	    if (r) {
	      var c = r.charCodeAt(r.length - 1);
	      if (c >= 0xD800 && c <= 0xDBFF) {
	        this.lastNeed = 2;
	        this.lastTotal = 4;
	        this.lastChar[0] = buf[buf.length - 2];
	        this.lastChar[1] = buf[buf.length - 1];
	        return r.slice(0, -1);
	      }
	    }
	    return r;
	  }
	  this.lastNeed = 1;
	  this.lastTotal = 2;
	  this.lastChar[0] = buf[buf.length - 1];
	  return buf.toString('utf16le', i, buf.length - 1);
	}

	// For UTF-16LE we do not explicitly append special replacement characters if we
	// end on a partial character, we simply let v8 handle that.
	function utf16End(buf) {
	  var r = buf && buf.length ? this.write(buf) : '';
	  if (this.lastNeed) {
	    var end = this.lastTotal - this.lastNeed;
	    return r + this.lastChar.toString('utf16le', 0, end);
	  }
	  return r;
	}

	function base64Text(buf, i) {
	  var n = (buf.length - i) % 3;
	  if (n === 0) return buf.toString('base64', i);
	  this.lastNeed = 3 - n;
	  this.lastTotal = 3;
	  if (n === 1) {
	    this.lastChar[0] = buf[buf.length - 1];
	  } else {
	    this.lastChar[0] = buf[buf.length - 2];
	    this.lastChar[1] = buf[buf.length - 1];
	  }
	  return buf.toString('base64', i, buf.length - n);
	}

	function base64End(buf) {
	  var r = buf && buf.length ? this.write(buf) : '';
	  if (this.lastNeed) return r + this.lastChar.toString('base64', 0, 3 - this.lastNeed);
	  return r;
	}

	// Pass bytes on through for single-byte encodings (e.g. ascii, latin1, hex)
	function simpleWrite(buf) {
	  return buf.toString(this.encoding);
	}

	function simpleEnd(buf) {
	  return buf && buf.length ? this.write(buf) : '';
	}
	return string_decoder;
}

var endOfStream;
var hasRequiredEndOfStream;

function requireEndOfStream () {
	if (hasRequiredEndOfStream) return endOfStream;
	hasRequiredEndOfStream = 1;

	var ERR_STREAM_PREMATURE_CLOSE = requireErrors().codes.ERR_STREAM_PREMATURE_CLOSE;

	function once(callback) {
	  var called = false;
	  return function () {
	    if (called) return;
	    called = true;

	    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
	      args[_key] = arguments[_key];
	    }

	    callback.apply(this, args);
	  };
	}

	function noop() {}

	function isRequest(stream) {
	  return stream.setHeader && typeof stream.abort === 'function';
	}

	function eos(stream, opts, callback) {
	  if (typeof opts === 'function') return eos(stream, null, opts);
	  if (!opts) opts = {};
	  callback = once(callback || noop);
	  var readable = opts.readable || opts.readable !== false && stream.readable;
	  var writable = opts.writable || opts.writable !== false && stream.writable;

	  var onlegacyfinish = function onlegacyfinish() {
	    if (!stream.writable) onfinish();
	  };

	  var writableEnded = stream._writableState && stream._writableState.finished;

	  var onfinish = function onfinish() {
	    writable = false;
	    writableEnded = true;
	    if (!readable) callback.call(stream);
	  };

	  var readableEnded = stream._readableState && stream._readableState.endEmitted;

	  var onend = function onend() {
	    readable = false;
	    readableEnded = true;
	    if (!writable) callback.call(stream);
	  };

	  var onerror = function onerror(err) {
	    callback.call(stream, err);
	  };

	  var onclose = function onclose() {
	    var err;

	    if (readable && !readableEnded) {
	      if (!stream._readableState || !stream._readableState.ended) err = new ERR_STREAM_PREMATURE_CLOSE();
	      return callback.call(stream, err);
	    }

	    if (writable && !writableEnded) {
	      if (!stream._writableState || !stream._writableState.ended) err = new ERR_STREAM_PREMATURE_CLOSE();
	      return callback.call(stream, err);
	    }
	  };

	  var onrequest = function onrequest() {
	    stream.req.on('finish', onfinish);
	  };

	  if (isRequest(stream)) {
	    stream.on('complete', onfinish);
	    stream.on('abort', onclose);
	    if (stream.req) onrequest();else stream.on('request', onrequest);
	  } else if (writable && !stream._writableState) {
	    // legacy streams
	    stream.on('end', onlegacyfinish);
	    stream.on('close', onlegacyfinish);
	  }

	  stream.on('end', onend);
	  stream.on('finish', onfinish);
	  if (opts.error !== false) stream.on('error', onerror);
	  stream.on('close', onclose);
	  return function () {
	    stream.removeListener('complete', onfinish);
	    stream.removeListener('abort', onclose);
	    stream.removeListener('request', onrequest);
	    if (stream.req) stream.req.removeListener('finish', onfinish);
	    stream.removeListener('end', onlegacyfinish);
	    stream.removeListener('close', onlegacyfinish);
	    stream.removeListener('finish', onfinish);
	    stream.removeListener('end', onend);
	    stream.removeListener('error', onerror);
	    stream.removeListener('close', onclose);
	  };
	}

	endOfStream = eos;
	return endOfStream;
}

var async_iterator;
var hasRequiredAsync_iterator;

function requireAsync_iterator () {
	if (hasRequiredAsync_iterator) return async_iterator;
	hasRequiredAsync_iterator = 1;

	var _Object$setPrototypeO;

	function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }

	var finished = requireEndOfStream();

	var kLastResolve = Symbol('lastResolve');
	var kLastReject = Symbol('lastReject');
	var kError = Symbol('error');
	var kEnded = Symbol('ended');
	var kLastPromise = Symbol('lastPromise');
	var kHandlePromise = Symbol('handlePromise');
	var kStream = Symbol('stream');

	function createIterResult(value, done) {
	  return {
	    value: value,
	    done: done
	  };
	}

	function readAndResolve(iter) {
	  var resolve = iter[kLastResolve];

	  if (resolve !== null) {
	    var data = iter[kStream].read(); // we defer if data is null
	    // we can be expecting either 'end' or
	    // 'error'

	    if (data !== null) {
	      iter[kLastPromise] = null;
	      iter[kLastResolve] = null;
	      iter[kLastReject] = null;
	      resolve(createIterResult(data, false));
	    }
	  }
	}

	function onReadable(iter) {
	  // we wait for the next tick, because it might
	  // emit an error with process.nextTick
	  process.nextTick(readAndResolve, iter);
	}

	function wrapForNext(lastPromise, iter) {
	  return function (resolve, reject) {
	    lastPromise.then(function () {
	      if (iter[kEnded]) {
	        resolve(createIterResult(undefined, true));
	        return;
	      }

	      iter[kHandlePromise](resolve, reject);
	    }, reject);
	  };
	}

	var AsyncIteratorPrototype = Object.getPrototypeOf(function () {});
	var ReadableStreamAsyncIteratorPrototype = Object.setPrototypeOf((_Object$setPrototypeO = {
	  get stream() {
	    return this[kStream];
	  },

	  next: function next() {
	    var _this = this;

	    // if we have detected an error in the meanwhile
	    // reject straight away
	    var error = this[kError];

	    if (error !== null) {
	      return Promise.reject(error);
	    }

	    if (this[kEnded]) {
	      return Promise.resolve(createIterResult(undefined, true));
	    }

	    if (this[kStream].destroyed) {
	      // We need to defer via nextTick because if .destroy(err) is
	      // called, the error will be emitted via nextTick, and
	      // we cannot guarantee that there is no error lingering around
	      // waiting to be emitted.
	      return new Promise(function (resolve, reject) {
	        process.nextTick(function () {
	          if (_this[kError]) {
	            reject(_this[kError]);
	          } else {
	            resolve(createIterResult(undefined, true));
	          }
	        });
	      });
	    } // if we have multiple next() calls
	    // we will wait for the previous Promise to finish
	    // this logic is optimized to support for await loops,
	    // where next() is only called once at a time


	    var lastPromise = this[kLastPromise];
	    var promise;

	    if (lastPromise) {
	      promise = new Promise(wrapForNext(lastPromise, this));
	    } else {
	      // fast path needed to support multiple this.push()
	      // without triggering the next() queue
	      var data = this[kStream].read();

	      if (data !== null) {
	        return Promise.resolve(createIterResult(data, false));
	      }

	      promise = new Promise(this[kHandlePromise]);
	    }

	    this[kLastPromise] = promise;
	    return promise;
	  }
	}, _defineProperty(_Object$setPrototypeO, Symbol.asyncIterator, function () {
	  return this;
	}), _defineProperty(_Object$setPrototypeO, "return", function _return() {
	  var _this2 = this;

	  // destroy(err, cb) is a private API
	  // we can guarantee we have that here, because we control the
	  // Readable class this is attached to
	  return new Promise(function (resolve, reject) {
	    _this2[kStream].destroy(null, function (err) {
	      if (err) {
	        reject(err);
	        return;
	      }

	      resolve(createIterResult(undefined, true));
	    });
	  });
	}), _Object$setPrototypeO), AsyncIteratorPrototype);

	var createReadableStreamAsyncIterator = function createReadableStreamAsyncIterator(stream) {
	  var _Object$create;

	  var iterator = Object.create(ReadableStreamAsyncIteratorPrototype, (_Object$create = {}, _defineProperty(_Object$create, kStream, {
	    value: stream,
	    writable: true
	  }), _defineProperty(_Object$create, kLastResolve, {
	    value: null,
	    writable: true
	  }), _defineProperty(_Object$create, kLastReject, {
	    value: null,
	    writable: true
	  }), _defineProperty(_Object$create, kError, {
	    value: null,
	    writable: true
	  }), _defineProperty(_Object$create, kEnded, {
	    value: stream._readableState.endEmitted,
	    writable: true
	  }), _defineProperty(_Object$create, kHandlePromise, {
	    value: function value(resolve, reject) {
	      var data = iterator[kStream].read();

	      if (data) {
	        iterator[kLastPromise] = null;
	        iterator[kLastResolve] = null;
	        iterator[kLastReject] = null;
	        resolve(createIterResult(data, false));
	      } else {
	        iterator[kLastResolve] = resolve;
	        iterator[kLastReject] = reject;
	      }
	    },
	    writable: true
	  }), _Object$create));
	  iterator[kLastPromise] = null;
	  finished(stream, function (err) {
	    if (err && err.code !== 'ERR_STREAM_PREMATURE_CLOSE') {
	      var reject = iterator[kLastReject]; // reject if we are waiting for data in the Promise
	      // returned by next() and store the error

	      if (reject !== null) {
	        iterator[kLastPromise] = null;
	        iterator[kLastResolve] = null;
	        iterator[kLastReject] = null;
	        reject(err);
	      }

	      iterator[kError] = err;
	      return;
	    }

	    var resolve = iterator[kLastResolve];

	    if (resolve !== null) {
	      iterator[kLastPromise] = null;
	      iterator[kLastResolve] = null;
	      iterator[kLastReject] = null;
	      resolve(createIterResult(undefined, true));
	    }

	    iterator[kEnded] = true;
	  });
	  stream.on('readable', onReadable.bind(null, iterator));
	  return iterator;
	};

	async_iterator = createReadableStreamAsyncIterator;
	return async_iterator;
}

var from_1;
var hasRequiredFrom;

function requireFrom () {
	if (hasRequiredFrom) return from_1;
	hasRequiredFrom = 1;

	function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { Promise.resolve(value).then(_next, _throw); } }

	function _asyncToGenerator(fn) { return function () { var self = this, args = arguments; return new Promise(function (resolve, reject) { var gen = fn.apply(self, args); function _next(value) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value); } function _throw(err) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err); } _next(undefined); }); }; }

	function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); if (enumerableOnly) symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; }); keys.push.apply(keys, symbols); } return keys; }

	function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; if (i % 2) { ownKeys(Object(source), true).forEach(function (key) { _defineProperty(target, key, source[key]); }); } else if (Object.getOwnPropertyDescriptors) { Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)); } else { ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } } return target; }

	function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }

	var ERR_INVALID_ARG_TYPE = requireErrors().codes.ERR_INVALID_ARG_TYPE;

	function from(Readable, iterable, opts) {
	  var iterator;

	  if (iterable && typeof iterable.next === 'function') {
	    iterator = iterable;
	  } else if (iterable && iterable[Symbol.asyncIterator]) iterator = iterable[Symbol.asyncIterator]();else if (iterable && iterable[Symbol.iterator]) iterator = iterable[Symbol.iterator]();else throw new ERR_INVALID_ARG_TYPE('iterable', ['Iterable'], iterable);

	  var readable = new Readable(_objectSpread({
	    objectMode: true
	  }, opts)); // Reading boolean to protect against _read
	  // being called before last iteration completion.

	  var reading = false;

	  readable._read = function () {
	    if (!reading) {
	      reading = true;
	      next();
	    }
	  };

	  function next() {
	    return _next2.apply(this, arguments);
	  }

	  function _next2() {
	    _next2 = _asyncToGenerator(function* () {
	      try {
	        var _ref = yield iterator.next(),
	            value = _ref.value,
	            done = _ref.done;

	        if (done) {
	          readable.push(null);
	        } else if (readable.push((yield value))) {
	          next();
	        } else {
	          reading = false;
	        }
	      } catch (err) {
	        readable.destroy(err);
	      }
	    });
	    return _next2.apply(this, arguments);
	  }

	  return readable;
	}

	from_1 = from;
	return from_1;
}

var _stream_readable;
var hasRequired_stream_readable;

function require_stream_readable () {
	if (hasRequired_stream_readable) return _stream_readable;
	hasRequired_stream_readable = 1;

	_stream_readable = Readable;
	/*<replacement>*/

	var Duplex;
	/*</replacement>*/

	Readable.ReadableState = ReadableState;
	/*<replacement>*/

	require$$0__default$5["default"].EventEmitter;

	var EElistenerCount = function EElistenerCount(emitter, type) {
	  return emitter.listeners(type).length;
	};
	/*</replacement>*/

	/*<replacement>*/


	var Stream = requireStream();
	/*</replacement>*/


	var Buffer = require$$0__default$4["default"].Buffer;

	var OurUint8Array = commonjsGlobal.Uint8Array || function () {};

	function _uint8ArrayToBuffer(chunk) {
	  return Buffer.from(chunk);
	}

	function _isUint8Array(obj) {
	  return Buffer.isBuffer(obj) || obj instanceof OurUint8Array;
	}
	/*<replacement>*/


	var debugUtil = require$$1__default["default"];

	var debug;

	if (debugUtil && debugUtil.debuglog) {
	  debug = debugUtil.debuglog('stream');
	} else {
	  debug = function debug() {};
	}
	/*</replacement>*/


	var BufferList = requireBuffer_list();

	var destroyImpl = requireDestroy();

	var _require = requireState(),
	    getHighWaterMark = _require.getHighWaterMark;

	var _require$codes = requireErrors().codes,
	    ERR_INVALID_ARG_TYPE = _require$codes.ERR_INVALID_ARG_TYPE,
	    ERR_STREAM_PUSH_AFTER_EOF = _require$codes.ERR_STREAM_PUSH_AFTER_EOF,
	    ERR_METHOD_NOT_IMPLEMENTED = _require$codes.ERR_METHOD_NOT_IMPLEMENTED,
	    ERR_STREAM_UNSHIFT_AFTER_END_EVENT = _require$codes.ERR_STREAM_UNSHIFT_AFTER_END_EVENT; // Lazy loaded to improve the startup performance.


	var StringDecoder;
	var createReadableStreamAsyncIterator;
	var from;

	requireInherits()(Readable, Stream);

	var errorOrDestroy = destroyImpl.errorOrDestroy;
	var kProxyEvents = ['error', 'close', 'destroy', 'pause', 'resume'];

	function prependListener(emitter, event, fn) {
	  // Sadly this is not cacheable as some libraries bundle their own
	  // event emitter implementation with them.
	  if (typeof emitter.prependListener === 'function') return emitter.prependListener(event, fn); // This is a hack to make sure that our error handler is attached before any
	  // userland ones.  NEVER DO THIS. This is here only because this code needs
	  // to continue to work with older versions of Node.js that do not include
	  // the prependListener() method. The goal is to eventually remove this hack.

	  if (!emitter._events || !emitter._events[event]) emitter.on(event, fn);else if (Array.isArray(emitter._events[event])) emitter._events[event].unshift(fn);else emitter._events[event] = [fn, emitter._events[event]];
	}

	function ReadableState(options, stream, isDuplex) {
	  Duplex = Duplex || require_stream_duplex();
	  options = options || {}; // Duplex streams are both readable and writable, but share
	  // the same options object.
	  // However, some cases require setting options to different
	  // values for the readable and the writable sides of the duplex stream.
	  // These options can be provided separately as readableXXX and writableXXX.

	  if (typeof isDuplex !== 'boolean') isDuplex = stream instanceof Duplex; // object stream flag. Used to make read(n) ignore n and to
	  // make all the buffer merging and length checks go away

	  this.objectMode = !!options.objectMode;
	  if (isDuplex) this.objectMode = this.objectMode || !!options.readableObjectMode; // the point at which it stops calling _read() to fill the buffer
	  // Note: 0 is a valid value, means "don't call _read preemptively ever"

	  this.highWaterMark = getHighWaterMark(this, options, 'readableHighWaterMark', isDuplex); // A linked list is used to store data chunks instead of an array because the
	  // linked list can remove elements from the beginning faster than
	  // array.shift()

	  this.buffer = new BufferList();
	  this.length = 0;
	  this.pipes = null;
	  this.pipesCount = 0;
	  this.flowing = null;
	  this.ended = false;
	  this.endEmitted = false;
	  this.reading = false; // a flag to be able to tell if the event 'readable'/'data' is emitted
	  // immediately, or on a later tick.  We set this to true at first, because
	  // any actions that shouldn't happen until "later" should generally also
	  // not happen before the first read call.

	  this.sync = true; // whenever we return null, then we set a flag to say
	  // that we're awaiting a 'readable' event emission.

	  this.needReadable = false;
	  this.emittedReadable = false;
	  this.readableListening = false;
	  this.resumeScheduled = false;
	  this.paused = true; // Should close be emitted on destroy. Defaults to true.

	  this.emitClose = options.emitClose !== false; // Should .destroy() be called after 'end' (and potentially 'finish')

	  this.autoDestroy = !!options.autoDestroy; // has it been destroyed

	  this.destroyed = false; // Crypto is kind of old and crusty.  Historically, its default string
	  // encoding is 'binary' so we have to make this configurable.
	  // Everything else in the universe uses 'utf8', though.

	  this.defaultEncoding = options.defaultEncoding || 'utf8'; // the number of writers that are awaiting a drain event in .pipe()s

	  this.awaitDrain = 0; // if true, a maybeReadMore has been scheduled

	  this.readingMore = false;
	  this.decoder = null;
	  this.encoding = null;

	  if (options.encoding) {
	    if (!StringDecoder) StringDecoder = requireString_decoder().StringDecoder;
	    this.decoder = new StringDecoder(options.encoding);
	    this.encoding = options.encoding;
	  }
	}

	function Readable(options) {
	  Duplex = Duplex || require_stream_duplex();
	  if (!(this instanceof Readable)) return new Readable(options); // Checking for a Stream.Duplex instance is faster here instead of inside
	  // the ReadableState constructor, at least with V8 6.5

	  var isDuplex = this instanceof Duplex;
	  this._readableState = new ReadableState(options, this, isDuplex); // legacy

	  this.readable = true;

	  if (options) {
	    if (typeof options.read === 'function') this._read = options.read;
	    if (typeof options.destroy === 'function') this._destroy = options.destroy;
	  }

	  Stream.call(this);
	}

	Object.defineProperty(Readable.prototype, 'destroyed', {
	  // making it explicit this property is not enumerable
	  // because otherwise some prototype manipulation in
	  // userland will fail
	  enumerable: false,
	  get: function get() {
	    if (this._readableState === undefined) {
	      return false;
	    }

	    return this._readableState.destroyed;
	  },
	  set: function set(value) {
	    // we ignore the value if the stream
	    // has not been initialized yet
	    if (!this._readableState) {
	      return;
	    } // backward compatibility, the user is explicitly
	    // managing destroyed


	    this._readableState.destroyed = value;
	  }
	});
	Readable.prototype.destroy = destroyImpl.destroy;
	Readable.prototype._undestroy = destroyImpl.undestroy;

	Readable.prototype._destroy = function (err, cb) {
	  cb(err);
	}; // Manually shove something into the read() buffer.
	// This returns true if the highWaterMark has not been hit yet,
	// similar to how Writable.write() returns true if you should
	// write() some more.


	Readable.prototype.push = function (chunk, encoding) {
	  var state = this._readableState;
	  var skipChunkCheck;

	  if (!state.objectMode) {
	    if (typeof chunk === 'string') {
	      encoding = encoding || state.defaultEncoding;

	      if (encoding !== state.encoding) {
	        chunk = Buffer.from(chunk, encoding);
	        encoding = '';
	      }

	      skipChunkCheck = true;
	    }
	  } else {
	    skipChunkCheck = true;
	  }

	  return readableAddChunk(this, chunk, encoding, false, skipChunkCheck);
	}; // Unshift should *always* be something directly out of read()


	Readable.prototype.unshift = function (chunk) {
	  return readableAddChunk(this, chunk, null, true, false);
	};

	function readableAddChunk(stream, chunk, encoding, addToFront, skipChunkCheck) {
	  debug('readableAddChunk', chunk);
	  var state = stream._readableState;

	  if (chunk === null) {
	    state.reading = false;
	    onEofChunk(stream, state);
	  } else {
	    var er;
	    if (!skipChunkCheck) er = chunkInvalid(state, chunk);

	    if (er) {
	      errorOrDestroy(stream, er);
	    } else if (state.objectMode || chunk && chunk.length > 0) {
	      if (typeof chunk !== 'string' && !state.objectMode && Object.getPrototypeOf(chunk) !== Buffer.prototype) {
	        chunk = _uint8ArrayToBuffer(chunk);
	      }

	      if (addToFront) {
	        if (state.endEmitted) errorOrDestroy(stream, new ERR_STREAM_UNSHIFT_AFTER_END_EVENT());else addChunk(stream, state, chunk, true);
	      } else if (state.ended) {
	        errorOrDestroy(stream, new ERR_STREAM_PUSH_AFTER_EOF());
	      } else if (state.destroyed) {
	        return false;
	      } else {
	        state.reading = false;

	        if (state.decoder && !encoding) {
	          chunk = state.decoder.write(chunk);
	          if (state.objectMode || chunk.length !== 0) addChunk(stream, state, chunk, false);else maybeReadMore(stream, state);
	        } else {
	          addChunk(stream, state, chunk, false);
	        }
	      }
	    } else if (!addToFront) {
	      state.reading = false;
	      maybeReadMore(stream, state);
	    }
	  } // We can push more data if we are below the highWaterMark.
	  // Also, if we have no data yet, we can stand some more bytes.
	  // This is to work around cases where hwm=0, such as the repl.


	  return !state.ended && (state.length < state.highWaterMark || state.length === 0);
	}

	function addChunk(stream, state, chunk, addToFront) {
	  if (state.flowing && state.length === 0 && !state.sync) {
	    state.awaitDrain = 0;
	    stream.emit('data', chunk);
	  } else {
	    // update the buffer info.
	    state.length += state.objectMode ? 1 : chunk.length;
	    if (addToFront) state.buffer.unshift(chunk);else state.buffer.push(chunk);
	    if (state.needReadable) emitReadable(stream);
	  }

	  maybeReadMore(stream, state);
	}

	function chunkInvalid(state, chunk) {
	  var er;

	  if (!_isUint8Array(chunk) && typeof chunk !== 'string' && chunk !== undefined && !state.objectMode) {
	    er = new ERR_INVALID_ARG_TYPE('chunk', ['string', 'Buffer', 'Uint8Array'], chunk);
	  }

	  return er;
	}

	Readable.prototype.isPaused = function () {
	  return this._readableState.flowing === false;
	}; // backwards compatibility.


	Readable.prototype.setEncoding = function (enc) {
	  if (!StringDecoder) StringDecoder = requireString_decoder().StringDecoder;
	  var decoder = new StringDecoder(enc);
	  this._readableState.decoder = decoder; // If setEncoding(null), decoder.encoding equals utf8

	  this._readableState.encoding = this._readableState.decoder.encoding; // Iterate over current buffer to convert already stored Buffers:

	  var p = this._readableState.buffer.head;
	  var content = '';

	  while (p !== null) {
	    content += decoder.write(p.data);
	    p = p.next;
	  }

	  this._readableState.buffer.clear();

	  if (content !== '') this._readableState.buffer.push(content);
	  this._readableState.length = content.length;
	  return this;
	}; // Don't raise the hwm > 1GB


	var MAX_HWM = 0x40000000;

	function computeNewHighWaterMark(n) {
	  if (n >= MAX_HWM) {
	    // TODO(ronag): Throw ERR_VALUE_OUT_OF_RANGE.
	    n = MAX_HWM;
	  } else {
	    // Get the next highest power of 2 to prevent increasing hwm excessively in
	    // tiny amounts
	    n--;
	    n |= n >>> 1;
	    n |= n >>> 2;
	    n |= n >>> 4;
	    n |= n >>> 8;
	    n |= n >>> 16;
	    n++;
	  }

	  return n;
	} // This function is designed to be inlinable, so please take care when making
	// changes to the function body.


	function howMuchToRead(n, state) {
	  if (n <= 0 || state.length === 0 && state.ended) return 0;
	  if (state.objectMode) return 1;

	  if (n !== n) {
	    // Only flow one buffer at a time
	    if (state.flowing && state.length) return state.buffer.head.data.length;else return state.length;
	  } // If we're asking for more than the current hwm, then raise the hwm.


	  if (n > state.highWaterMark) state.highWaterMark = computeNewHighWaterMark(n);
	  if (n <= state.length) return n; // Don't have enough

	  if (!state.ended) {
	    state.needReadable = true;
	    return 0;
	  }

	  return state.length;
	} // you can override either this method, or the async _read(n) below.


	Readable.prototype.read = function (n) {
	  debug('read', n);
	  n = parseInt(n, 10);
	  var state = this._readableState;
	  var nOrig = n;
	  if (n !== 0) state.emittedReadable = false; // if we're doing read(0) to trigger a readable event, but we
	  // already have a bunch of data in the buffer, then just trigger
	  // the 'readable' event and move on.

	  if (n === 0 && state.needReadable && ((state.highWaterMark !== 0 ? state.length >= state.highWaterMark : state.length > 0) || state.ended)) {
	    debug('read: emitReadable', state.length, state.ended);
	    if (state.length === 0 && state.ended) endReadable(this);else emitReadable(this);
	    return null;
	  }

	  n = howMuchToRead(n, state); // if we've ended, and we're now clear, then finish it up.

	  if (n === 0 && state.ended) {
	    if (state.length === 0) endReadable(this);
	    return null;
	  } // All the actual chunk generation logic needs to be
	  // *below* the call to _read.  The reason is that in certain
	  // synthetic stream cases, such as passthrough streams, _read
	  // may be a completely synchronous operation which may change
	  // the state of the read buffer, providing enough data when
	  // before there was *not* enough.
	  //
	  // So, the steps are:
	  // 1. Figure out what the state of things will be after we do
	  // a read from the buffer.
	  //
	  // 2. If that resulting state will trigger a _read, then call _read.
	  // Note that this may be asynchronous, or synchronous.  Yes, it is
	  // deeply ugly to write APIs this way, but that still doesn't mean
	  // that the Readable class should behave improperly, as streams are
	  // designed to be sync/async agnostic.
	  // Take note if the _read call is sync or async (ie, if the read call
	  // has returned yet), so that we know whether or not it's safe to emit
	  // 'readable' etc.
	  //
	  // 3. Actually pull the requested chunks out of the buffer and return.
	  // if we need a readable event, then we need to do some reading.


	  var doRead = state.needReadable;
	  debug('need readable', doRead); // if we currently have less than the highWaterMark, then also read some

	  if (state.length === 0 || state.length - n < state.highWaterMark) {
	    doRead = true;
	    debug('length less than watermark', doRead);
	  } // however, if we've ended, then there's no point, and if we're already
	  // reading, then it's unnecessary.


	  if (state.ended || state.reading) {
	    doRead = false;
	    debug('reading or ended', doRead);
	  } else if (doRead) {
	    debug('do read');
	    state.reading = true;
	    state.sync = true; // if the length is currently zero, then we *need* a readable event.

	    if (state.length === 0) state.needReadable = true; // call internal read method

	    this._read(state.highWaterMark);

	    state.sync = false; // If _read pushed data synchronously, then `reading` will be false,
	    // and we need to re-evaluate how much data we can return to the user.

	    if (!state.reading) n = howMuchToRead(nOrig, state);
	  }

	  var ret;
	  if (n > 0) ret = fromList(n, state);else ret = null;

	  if (ret === null) {
	    state.needReadable = state.length <= state.highWaterMark;
	    n = 0;
	  } else {
	    state.length -= n;
	    state.awaitDrain = 0;
	  }

	  if (state.length === 0) {
	    // If we have nothing in the buffer, then we want to know
	    // as soon as we *do* get something into the buffer.
	    if (!state.ended) state.needReadable = true; // If we tried to read() past the EOF, then emit end on the next tick.

	    if (nOrig !== n && state.ended) endReadable(this);
	  }

	  if (ret !== null) this.emit('data', ret);
	  return ret;
	};

	function onEofChunk(stream, state) {
	  debug('onEofChunk');
	  if (state.ended) return;

	  if (state.decoder) {
	    var chunk = state.decoder.end();

	    if (chunk && chunk.length) {
	      state.buffer.push(chunk);
	      state.length += state.objectMode ? 1 : chunk.length;
	    }
	  }

	  state.ended = true;

	  if (state.sync) {
	    // if we are sync, wait until next tick to emit the data.
	    // Otherwise we risk emitting data in the flow()
	    // the readable code triggers during a read() call
	    emitReadable(stream);
	  } else {
	    // emit 'readable' now to make sure it gets picked up.
	    state.needReadable = false;

	    if (!state.emittedReadable) {
	      state.emittedReadable = true;
	      emitReadable_(stream);
	    }
	  }
	} // Don't emit readable right away in sync mode, because this can trigger
	// another read() call => stack overflow.  This way, it might trigger
	// a nextTick recursion warning, but that's not so bad.


	function emitReadable(stream) {
	  var state = stream._readableState;
	  debug('emitReadable', state.needReadable, state.emittedReadable);
	  state.needReadable = false;

	  if (!state.emittedReadable) {
	    debug('emitReadable', state.flowing);
	    state.emittedReadable = true;
	    process.nextTick(emitReadable_, stream);
	  }
	}

	function emitReadable_(stream) {
	  var state = stream._readableState;
	  debug('emitReadable_', state.destroyed, state.length, state.ended);

	  if (!state.destroyed && (state.length || state.ended)) {
	    stream.emit('readable');
	    state.emittedReadable = false;
	  } // The stream needs another readable event if
	  // 1. It is not flowing, as the flow mechanism will take
	  //    care of it.
	  // 2. It is not ended.
	  // 3. It is below the highWaterMark, so we can schedule
	  //    another readable later.


	  state.needReadable = !state.flowing && !state.ended && state.length <= state.highWaterMark;
	  flow(stream);
	} // at this point, the user has presumably seen the 'readable' event,
	// and called read() to consume some data.  that may have triggered
	// in turn another _read(n) call, in which case reading = true if
	// it's in progress.
	// However, if we're not ended, or reading, and the length < hwm,
	// then go ahead and try to read some more preemptively.


	function maybeReadMore(stream, state) {
	  if (!state.readingMore) {
	    state.readingMore = true;
	    process.nextTick(maybeReadMore_, stream, state);
	  }
	}

	function maybeReadMore_(stream, state) {
	  // Attempt to read more data if we should.
	  //
	  // The conditions for reading more data are (one of):
	  // - Not enough data buffered (state.length < state.highWaterMark). The loop
	  //   is responsible for filling the buffer with enough data if such data
	  //   is available. If highWaterMark is 0 and we are not in the flowing mode
	  //   we should _not_ attempt to buffer any extra data. We'll get more data
	  //   when the stream consumer calls read() instead.
	  // - No data in the buffer, and the stream is in flowing mode. In this mode
	  //   the loop below is responsible for ensuring read() is called. Failing to
	  //   call read here would abort the flow and there's no other mechanism for
	  //   continuing the flow if the stream consumer has just subscribed to the
	  //   'data' event.
	  //
	  // In addition to the above conditions to keep reading data, the following
	  // conditions prevent the data from being read:
	  // - The stream has ended (state.ended).
	  // - There is already a pending 'read' operation (state.reading). This is a
	  //   case where the the stream has called the implementation defined _read()
	  //   method, but they are processing the call asynchronously and have _not_
	  //   called push() with new data. In this case we skip performing more
	  //   read()s. The execution ends in this method again after the _read() ends
	  //   up calling push() with more data.
	  while (!state.reading && !state.ended && (state.length < state.highWaterMark || state.flowing && state.length === 0)) {
	    var len = state.length;
	    debug('maybeReadMore read 0');
	    stream.read(0);
	    if (len === state.length) // didn't get any data, stop spinning.
	      break;
	  }

	  state.readingMore = false;
	} // abstract method.  to be overridden in specific implementation classes.
	// call cb(er, data) where data is <= n in length.
	// for virtual (non-string, non-buffer) streams, "length" is somewhat
	// arbitrary, and perhaps not very meaningful.


	Readable.prototype._read = function (n) {
	  errorOrDestroy(this, new ERR_METHOD_NOT_IMPLEMENTED('_read()'));
	};

	Readable.prototype.pipe = function (dest, pipeOpts) {
	  var src = this;
	  var state = this._readableState;

	  switch (state.pipesCount) {
	    case 0:
	      state.pipes = dest;
	      break;

	    case 1:
	      state.pipes = [state.pipes, dest];
	      break;

	    default:
	      state.pipes.push(dest);
	      break;
	  }

	  state.pipesCount += 1;
	  debug('pipe count=%d opts=%j', state.pipesCount, pipeOpts);
	  var doEnd = (!pipeOpts || pipeOpts.end !== false) && dest !== process.stdout && dest !== process.stderr;
	  var endFn = doEnd ? onend : unpipe;
	  if (state.endEmitted) process.nextTick(endFn);else src.once('end', endFn);
	  dest.on('unpipe', onunpipe);

	  function onunpipe(readable, unpipeInfo) {
	    debug('onunpipe');

	    if (readable === src) {
	      if (unpipeInfo && unpipeInfo.hasUnpiped === false) {
	        unpipeInfo.hasUnpiped = true;
	        cleanup();
	      }
	    }
	  }

	  function onend() {
	    debug('onend');
	    dest.end();
	  } // when the dest drains, it reduces the awaitDrain counter
	  // on the source.  This would be more elegant with a .once()
	  // handler in flow(), but adding and removing repeatedly is
	  // too slow.


	  var ondrain = pipeOnDrain(src);
	  dest.on('drain', ondrain);
	  var cleanedUp = false;

	  function cleanup() {
	    debug('cleanup'); // cleanup event handlers once the pipe is broken

	    dest.removeListener('close', onclose);
	    dest.removeListener('finish', onfinish);
	    dest.removeListener('drain', ondrain);
	    dest.removeListener('error', onerror);
	    dest.removeListener('unpipe', onunpipe);
	    src.removeListener('end', onend);
	    src.removeListener('end', unpipe);
	    src.removeListener('data', ondata);
	    cleanedUp = true; // if the reader is waiting for a drain event from this
	    // specific writer, then it would cause it to never start
	    // flowing again.
	    // So, if this is awaiting a drain, then we just call it now.
	    // If we don't know, then assume that we are waiting for one.

	    if (state.awaitDrain && (!dest._writableState || dest._writableState.needDrain)) ondrain();
	  }

	  src.on('data', ondata);

	  function ondata(chunk) {
	    debug('ondata');
	    var ret = dest.write(chunk);
	    debug('dest.write', ret);

	    if (ret === false) {
	      // If the user unpiped during `dest.write()`, it is possible
	      // to get stuck in a permanently paused state if that write
	      // also returned false.
	      // => Check whether `dest` is still a piping destination.
	      if ((state.pipesCount === 1 && state.pipes === dest || state.pipesCount > 1 && indexOf(state.pipes, dest) !== -1) && !cleanedUp) {
	        debug('false write response, pause', state.awaitDrain);
	        state.awaitDrain++;
	      }

	      src.pause();
	    }
	  } // if the dest has an error, then stop piping into it.
	  // however, don't suppress the throwing behavior for this.


	  function onerror(er) {
	    debug('onerror', er);
	    unpipe();
	    dest.removeListener('error', onerror);
	    if (EElistenerCount(dest, 'error') === 0) errorOrDestroy(dest, er);
	  } // Make sure our error handler is attached before userland ones.


	  prependListener(dest, 'error', onerror); // Both close and finish should trigger unpipe, but only once.

	  function onclose() {
	    dest.removeListener('finish', onfinish);
	    unpipe();
	  }

	  dest.once('close', onclose);

	  function onfinish() {
	    debug('onfinish');
	    dest.removeListener('close', onclose);
	    unpipe();
	  }

	  dest.once('finish', onfinish);

	  function unpipe() {
	    debug('unpipe');
	    src.unpipe(dest);
	  } // tell the dest that it's being piped to


	  dest.emit('pipe', src); // start the flow if it hasn't been started already.

	  if (!state.flowing) {
	    debug('pipe resume');
	    src.resume();
	  }

	  return dest;
	};

	function pipeOnDrain(src) {
	  return function pipeOnDrainFunctionResult() {
	    var state = src._readableState;
	    debug('pipeOnDrain', state.awaitDrain);
	    if (state.awaitDrain) state.awaitDrain--;

	    if (state.awaitDrain === 0 && EElistenerCount(src, 'data')) {
	      state.flowing = true;
	      flow(src);
	    }
	  };
	}

	Readable.prototype.unpipe = function (dest) {
	  var state = this._readableState;
	  var unpipeInfo = {
	    hasUnpiped: false
	  }; // if we're not piping anywhere, then do nothing.

	  if (state.pipesCount === 0) return this; // just one destination.  most common case.

	  if (state.pipesCount === 1) {
	    // passed in one, but it's not the right one.
	    if (dest && dest !== state.pipes) return this;
	    if (!dest) dest = state.pipes; // got a match.

	    state.pipes = null;
	    state.pipesCount = 0;
	    state.flowing = false;
	    if (dest) dest.emit('unpipe', this, unpipeInfo);
	    return this;
	  } // slow case. multiple pipe destinations.


	  if (!dest) {
	    // remove all.
	    var dests = state.pipes;
	    var len = state.pipesCount;
	    state.pipes = null;
	    state.pipesCount = 0;
	    state.flowing = false;

	    for (var i = 0; i < len; i++) {
	      dests[i].emit('unpipe', this, {
	        hasUnpiped: false
	      });
	    }

	    return this;
	  } // try to find the right one.


	  var index = indexOf(state.pipes, dest);
	  if (index === -1) return this;
	  state.pipes.splice(index, 1);
	  state.pipesCount -= 1;
	  if (state.pipesCount === 1) state.pipes = state.pipes[0];
	  dest.emit('unpipe', this, unpipeInfo);
	  return this;
	}; // set up data events if they are asked for
	// Ensure readable listeners eventually get something


	Readable.prototype.on = function (ev, fn) {
	  var res = Stream.prototype.on.call(this, ev, fn);
	  var state = this._readableState;

	  if (ev === 'data') {
	    // update readableListening so that resume() may be a no-op
	    // a few lines down. This is needed to support once('readable').
	    state.readableListening = this.listenerCount('readable') > 0; // Try start flowing on next tick if stream isn't explicitly paused

	    if (state.flowing !== false) this.resume();
	  } else if (ev === 'readable') {
	    if (!state.endEmitted && !state.readableListening) {
	      state.readableListening = state.needReadable = true;
	      state.flowing = false;
	      state.emittedReadable = false;
	      debug('on readable', state.length, state.reading);

	      if (state.length) {
	        emitReadable(this);
	      } else if (!state.reading) {
	        process.nextTick(nReadingNextTick, this);
	      }
	    }
	  }

	  return res;
	};

	Readable.prototype.addListener = Readable.prototype.on;

	Readable.prototype.removeListener = function (ev, fn) {
	  var res = Stream.prototype.removeListener.call(this, ev, fn);

	  if (ev === 'readable') {
	    // We need to check if there is someone still listening to
	    // readable and reset the state. However this needs to happen
	    // after readable has been emitted but before I/O (nextTick) to
	    // support once('readable', fn) cycles. This means that calling
	    // resume within the same tick will have no
	    // effect.
	    process.nextTick(updateReadableListening, this);
	  }

	  return res;
	};

	Readable.prototype.removeAllListeners = function (ev) {
	  var res = Stream.prototype.removeAllListeners.apply(this, arguments);

	  if (ev === 'readable' || ev === undefined) {
	    // We need to check if there is someone still listening to
	    // readable and reset the state. However this needs to happen
	    // after readable has been emitted but before I/O (nextTick) to
	    // support once('readable', fn) cycles. This means that calling
	    // resume within the same tick will have no
	    // effect.
	    process.nextTick(updateReadableListening, this);
	  }

	  return res;
	};

	function updateReadableListening(self) {
	  var state = self._readableState;
	  state.readableListening = self.listenerCount('readable') > 0;

	  if (state.resumeScheduled && !state.paused) {
	    // flowing needs to be set to true now, otherwise
	    // the upcoming resume will not flow.
	    state.flowing = true; // crude way to check if we should resume
	  } else if (self.listenerCount('data') > 0) {
	    self.resume();
	  }
	}

	function nReadingNextTick(self) {
	  debug('readable nexttick read 0');
	  self.read(0);
	} // pause() and resume() are remnants of the legacy readable stream API
	// If the user uses them, then switch into old mode.


	Readable.prototype.resume = function () {
	  var state = this._readableState;

	  if (!state.flowing) {
	    debug('resume'); // we flow only if there is no one listening
	    // for readable, but we still have to call
	    // resume()

	    state.flowing = !state.readableListening;
	    resume(this, state);
	  }

	  state.paused = false;
	  return this;
	};

	function resume(stream, state) {
	  if (!state.resumeScheduled) {
	    state.resumeScheduled = true;
	    process.nextTick(resume_, stream, state);
	  }
	}

	function resume_(stream, state) {
	  debug('resume', state.reading);

	  if (!state.reading) {
	    stream.read(0);
	  }

	  state.resumeScheduled = false;
	  stream.emit('resume');
	  flow(stream);
	  if (state.flowing && !state.reading) stream.read(0);
	}

	Readable.prototype.pause = function () {
	  debug('call pause flowing=%j', this._readableState.flowing);

	  if (this._readableState.flowing !== false) {
	    debug('pause');
	    this._readableState.flowing = false;
	    this.emit('pause');
	  }

	  this._readableState.paused = true;
	  return this;
	};

	function flow(stream) {
	  var state = stream._readableState;
	  debug('flow', state.flowing);

	  while (state.flowing && stream.read() !== null) {
	  }
	} // wrap an old-style stream as the async data source.
	// This is *not* part of the readable stream interface.
	// It is an ugly unfortunate mess of history.


	Readable.prototype.wrap = function (stream) {
	  var _this = this;

	  var state = this._readableState;
	  var paused = false;
	  stream.on('end', function () {
	    debug('wrapped end');

	    if (state.decoder && !state.ended) {
	      var chunk = state.decoder.end();
	      if (chunk && chunk.length) _this.push(chunk);
	    }

	    _this.push(null);
	  });
	  stream.on('data', function (chunk) {
	    debug('wrapped data');
	    if (state.decoder) chunk = state.decoder.write(chunk); // don't skip over falsy values in objectMode

	    if (state.objectMode && (chunk === null || chunk === undefined)) return;else if (!state.objectMode && (!chunk || !chunk.length)) return;

	    var ret = _this.push(chunk);

	    if (!ret) {
	      paused = true;
	      stream.pause();
	    }
	  }); // proxy all the other methods.
	  // important when wrapping filters and duplexes.

	  for (var i in stream) {
	    if (this[i] === undefined && typeof stream[i] === 'function') {
	      this[i] = function methodWrap(method) {
	        return function methodWrapReturnFunction() {
	          return stream[method].apply(stream, arguments);
	        };
	      }(i);
	    }
	  } // proxy certain important events.


	  for (var n = 0; n < kProxyEvents.length; n++) {
	    stream.on(kProxyEvents[n], this.emit.bind(this, kProxyEvents[n]));
	  } // when we try to consume some more bytes, simply unpause the
	  // underlying stream.


	  this._read = function (n) {
	    debug('wrapped _read', n);

	    if (paused) {
	      paused = false;
	      stream.resume();
	    }
	  };

	  return this;
	};

	if (typeof Symbol === 'function') {
	  Readable.prototype[Symbol.asyncIterator] = function () {
	    if (createReadableStreamAsyncIterator === undefined) {
	      createReadableStreamAsyncIterator = requireAsync_iterator();
	    }

	    return createReadableStreamAsyncIterator(this);
	  };
	}

	Object.defineProperty(Readable.prototype, 'readableHighWaterMark', {
	  // making it explicit this property is not enumerable
	  // because otherwise some prototype manipulation in
	  // userland will fail
	  enumerable: false,
	  get: function get() {
	    return this._readableState.highWaterMark;
	  }
	});
	Object.defineProperty(Readable.prototype, 'readableBuffer', {
	  // making it explicit this property is not enumerable
	  // because otherwise some prototype manipulation in
	  // userland will fail
	  enumerable: false,
	  get: function get() {
	    return this._readableState && this._readableState.buffer;
	  }
	});
	Object.defineProperty(Readable.prototype, 'readableFlowing', {
	  // making it explicit this property is not enumerable
	  // because otherwise some prototype manipulation in
	  // userland will fail
	  enumerable: false,
	  get: function get() {
	    return this._readableState.flowing;
	  },
	  set: function set(state) {
	    if (this._readableState) {
	      this._readableState.flowing = state;
	    }
	  }
	}); // exposed for testing purposes only.

	Readable._fromList = fromList;
	Object.defineProperty(Readable.prototype, 'readableLength', {
	  // making it explicit this property is not enumerable
	  // because otherwise some prototype manipulation in
	  // userland will fail
	  enumerable: false,
	  get: function get() {
	    return this._readableState.length;
	  }
	}); // Pluck off n bytes from an array of buffers.
	// Length is the combined lengths of all the buffers in the list.
	// This function is designed to be inlinable, so please take care when making
	// changes to the function body.

	function fromList(n, state) {
	  // nothing buffered
	  if (state.length === 0) return null;
	  var ret;
	  if (state.objectMode) ret = state.buffer.shift();else if (!n || n >= state.length) {
	    // read it all, truncate the list
	    if (state.decoder) ret = state.buffer.join('');else if (state.buffer.length === 1) ret = state.buffer.first();else ret = state.buffer.concat(state.length);
	    state.buffer.clear();
	  } else {
	    // read part of list
	    ret = state.buffer.consume(n, state.decoder);
	  }
	  return ret;
	}

	function endReadable(stream) {
	  var state = stream._readableState;
	  debug('endReadable', state.endEmitted);

	  if (!state.endEmitted) {
	    state.ended = true;
	    process.nextTick(endReadableNT, state, stream);
	  }
	}

	function endReadableNT(state, stream) {
	  debug('endReadableNT', state.endEmitted, state.length); // Check that we didn't get one last unshift.

	  if (!state.endEmitted && state.length === 0) {
	    state.endEmitted = true;
	    stream.readable = false;
	    stream.emit('end');

	    if (state.autoDestroy) {
	      // In case of duplex streams we need a way to detect
	      // if the writable side is ready for autoDestroy as well
	      var wState = stream._writableState;

	      if (!wState || wState.autoDestroy && wState.finished) {
	        stream.destroy();
	      }
	    }
	  }
	}

	if (typeof Symbol === 'function') {
	  Readable.from = function (iterable, opts) {
	    if (from === undefined) {
	      from = requireFrom();
	    }

	    return from(Readable, iterable, opts);
	  };
	}

	function indexOf(xs, x) {
	  for (var i = 0, l = xs.length; i < l; i++) {
	    if (xs[i] === x) return i;
	  }

	  return -1;
	}
	return _stream_readable;
}

var _stream_transform;
var hasRequired_stream_transform;

function require_stream_transform () {
	if (hasRequired_stream_transform) return _stream_transform;
	hasRequired_stream_transform = 1;

	_stream_transform = Transform;

	var _require$codes = requireErrors().codes,
	    ERR_METHOD_NOT_IMPLEMENTED = _require$codes.ERR_METHOD_NOT_IMPLEMENTED,
	    ERR_MULTIPLE_CALLBACK = _require$codes.ERR_MULTIPLE_CALLBACK,
	    ERR_TRANSFORM_ALREADY_TRANSFORMING = _require$codes.ERR_TRANSFORM_ALREADY_TRANSFORMING,
	    ERR_TRANSFORM_WITH_LENGTH_0 = _require$codes.ERR_TRANSFORM_WITH_LENGTH_0;

	var Duplex = require_stream_duplex();

	requireInherits()(Transform, Duplex);

	function afterTransform(er, data) {
	  var ts = this._transformState;
	  ts.transforming = false;
	  var cb = ts.writecb;

	  if (cb === null) {
	    return this.emit('error', new ERR_MULTIPLE_CALLBACK());
	  }

	  ts.writechunk = null;
	  ts.writecb = null;
	  if (data != null) // single equals check for both `null` and `undefined`
	    this.push(data);
	  cb(er);
	  var rs = this._readableState;
	  rs.reading = false;

	  if (rs.needReadable || rs.length < rs.highWaterMark) {
	    this._read(rs.highWaterMark);
	  }
	}

	function Transform(options) {
	  if (!(this instanceof Transform)) return new Transform(options);
	  Duplex.call(this, options);
	  this._transformState = {
	    afterTransform: afterTransform.bind(this),
	    needTransform: false,
	    transforming: false,
	    writecb: null,
	    writechunk: null,
	    writeencoding: null
	  }; // start out asking for a readable event once data is transformed.

	  this._readableState.needReadable = true; // we have implemented the _read method, and done the other things
	  // that Readable wants before the first _read call, so unset the
	  // sync guard flag.

	  this._readableState.sync = false;

	  if (options) {
	    if (typeof options.transform === 'function') this._transform = options.transform;
	    if (typeof options.flush === 'function') this._flush = options.flush;
	  } // When the writable side finishes, then flush out anything remaining.


	  this.on('prefinish', prefinish);
	}

	function prefinish() {
	  var _this = this;

	  if (typeof this._flush === 'function' && !this._readableState.destroyed) {
	    this._flush(function (er, data) {
	      done(_this, er, data);
	    });
	  } else {
	    done(this, null, null);
	  }
	}

	Transform.prototype.push = function (chunk, encoding) {
	  this._transformState.needTransform = false;
	  return Duplex.prototype.push.call(this, chunk, encoding);
	}; // This is the part where you do stuff!
	// override this function in implementation classes.
	// 'chunk' is an input chunk.
	//
	// Call `push(newChunk)` to pass along transformed output
	// to the readable side.  You may call 'push' zero or more times.
	//
	// Call `cb(err)` when you are done with this chunk.  If you pass
	// an error, then that'll put the hurt on the whole operation.  If you
	// never call cb(), then you'll never get another chunk.


	Transform.prototype._transform = function (chunk, encoding, cb) {
	  cb(new ERR_METHOD_NOT_IMPLEMENTED('_transform()'));
	};

	Transform.prototype._write = function (chunk, encoding, cb) {
	  var ts = this._transformState;
	  ts.writecb = cb;
	  ts.writechunk = chunk;
	  ts.writeencoding = encoding;

	  if (!ts.transforming) {
	    var rs = this._readableState;
	    if (ts.needTransform || rs.needReadable || rs.length < rs.highWaterMark) this._read(rs.highWaterMark);
	  }
	}; // Doesn't matter what the args are here.
	// _transform does all the work.
	// That we got here means that the readable side wants more data.


	Transform.prototype._read = function (n) {
	  var ts = this._transformState;

	  if (ts.writechunk !== null && !ts.transforming) {
	    ts.transforming = true;

	    this._transform(ts.writechunk, ts.writeencoding, ts.afterTransform);
	  } else {
	    // mark that we need a transform, so that any data that comes in
	    // will get processed, now that we've asked for it.
	    ts.needTransform = true;
	  }
	};

	Transform.prototype._destroy = function (err, cb) {
	  Duplex.prototype._destroy.call(this, err, function (err2) {
	    cb(err2);
	  });
	};

	function done(stream, er, data) {
	  if (er) return stream.emit('error', er);
	  if (data != null) // single equals check for both `null` and `undefined`
	    stream.push(data); // TODO(BridgeAR): Write a test for these two error cases
	  // if there's nothing in the write buffer, then that means
	  // that nothing more will ever be provided

	  if (stream._writableState.length) throw new ERR_TRANSFORM_WITH_LENGTH_0();
	  if (stream._transformState.transforming) throw new ERR_TRANSFORM_ALREADY_TRANSFORMING();
	  return stream.push(null);
	}
	return _stream_transform;
}

var _stream_passthrough;
var hasRequired_stream_passthrough;

function require_stream_passthrough () {
	if (hasRequired_stream_passthrough) return _stream_passthrough;
	hasRequired_stream_passthrough = 1;

	_stream_passthrough = PassThrough;

	var Transform = require_stream_transform();

	requireInherits()(PassThrough, Transform);

	function PassThrough(options) {
	  if (!(this instanceof PassThrough)) return new PassThrough(options);
	  Transform.call(this, options);
	}

	PassThrough.prototype._transform = function (chunk, encoding, cb) {
	  cb(null, chunk);
	};
	return _stream_passthrough;
}

var pipeline_1;
var hasRequiredPipeline;

function requirePipeline () {
	if (hasRequiredPipeline) return pipeline_1;
	hasRequiredPipeline = 1;

	var eos;

	function once(callback) {
	  var called = false;
	  return function () {
	    if (called) return;
	    called = true;
	    callback.apply(void 0, arguments);
	  };
	}

	var _require$codes = requireErrors().codes,
	    ERR_MISSING_ARGS = _require$codes.ERR_MISSING_ARGS,
	    ERR_STREAM_DESTROYED = _require$codes.ERR_STREAM_DESTROYED;

	function noop(err) {
	  // Rethrow the error if it exists to avoid swallowing it
	  if (err) throw err;
	}

	function isRequest(stream) {
	  return stream.setHeader && typeof stream.abort === 'function';
	}

	function destroyer(stream, reading, writing, callback) {
	  callback = once(callback);
	  var closed = false;
	  stream.on('close', function () {
	    closed = true;
	  });
	  if (eos === undefined) eos = requireEndOfStream();
	  eos(stream, {
	    readable: reading,
	    writable: writing
	  }, function (err) {
	    if (err) return callback(err);
	    closed = true;
	    callback();
	  });
	  var destroyed = false;
	  return function (err) {
	    if (closed) return;
	    if (destroyed) return;
	    destroyed = true; // request.destroy just do .end - .abort is what we want

	    if (isRequest(stream)) return stream.abort();
	    if (typeof stream.destroy === 'function') return stream.destroy();
	    callback(err || new ERR_STREAM_DESTROYED('pipe'));
	  };
	}

	function call(fn) {
	  fn();
	}

	function pipe(from, to) {
	  return from.pipe(to);
	}

	function popCallback(streams) {
	  if (!streams.length) return noop;
	  if (typeof streams[streams.length - 1] !== 'function') return noop;
	  return streams.pop();
	}

	function pipeline() {
	  for (var _len = arguments.length, streams = new Array(_len), _key = 0; _key < _len; _key++) {
	    streams[_key] = arguments[_key];
	  }

	  var callback = popCallback(streams);
	  if (Array.isArray(streams[0])) streams = streams[0];

	  if (streams.length < 2) {
	    throw new ERR_MISSING_ARGS('streams');
	  }

	  var error;
	  var destroys = streams.map(function (stream, i) {
	    var reading = i < streams.length - 1;
	    var writing = i > 0;
	    return destroyer(stream, reading, writing, function (err) {
	      if (!error) error = err;
	      if (err) destroys.forEach(call);
	      if (reading) return;
	      destroys.forEach(call);
	      callback(error);
	    });
	  });
	  return streams.reduce(pipe);
	}

	pipeline_1 = pipeline;
	return pipeline_1;
}

(function (module, exports) {
	var Stream = require$$0__default$3["default"];
	if (process.env.READABLE_STREAM === 'disable' && Stream) {
	  module.exports = Stream.Readable;
	  Object.assign(module.exports, Stream);
	  module.exports.Stream = Stream;
	} else {
	  exports = module.exports = require_stream_readable();
	  exports.Stream = Stream || exports;
	  exports.Readable = exports;
	  exports.Writable = require_stream_writable();
	  exports.Duplex = require_stream_duplex();
	  exports.Transform = require_stream_transform();
	  exports.PassThrough = require_stream_passthrough();
	  exports.finished = requireEndOfStream();
	  exports.pipeline = requirePipeline();
	}
} (readable, readable.exports));

Object.defineProperty(lib, "__esModule", { value: true });
lib.ReadableWebToNodeStream = void 0;
const readable_stream_1 = readable.exports;
/**
 * Converts a Web-API stream into Node stream.Readable class
 * Node stream readable: https://nodejs.org/api/stream.html#stream_readable_streams
 * Web API readable-stream: https://developer.mozilla.org/en-US/docs/Web/API/ReadableStream
 * Node readable stream: https://nodejs.org/api/stream.html#stream_readable_streams
 */
class ReadableWebToNodeStream extends readable_stream_1.Readable {
    /**
     *
     * @param stream Readable​Stream: https://developer.mozilla.org/en-US/docs/Web/API/ReadableStream
     */
    constructor(stream) {
        super();
        this.bytesRead = 0;
        this.released = false;
        this.reader = stream.getReader();
    }
    /**
     * Implementation of readable._read(size).
     * When readable._read() is called, if data is available from the resource,
     * the implementation should begin pushing that data into the read queue
     * https://nodejs.org/api/stream.html#stream_readable_read_size_1
     */
    async _read() {
        // Should start pushing data into the queue
        // Read data from the underlying Web-API-readable-stream
        if (this.released) {
            this.push(null); // Signal EOF
            return;
        }
        this.pendingRead = this.reader.read();
        const data = await this.pendingRead;
        // clear the promise before pushing pushing new data to the queue and allow sequential calls to _read()
        delete this.pendingRead;
        if (data.done || this.released) {
            this.push(null); // Signal EOF
        }
        else {
            this.bytesRead += data.value.length;
            this.push(data.value); // Push new data to the queue
        }
    }
    /**
     * If there is no unresolved read call to Web-API Readable​Stream immediately returns;
     * otherwise will wait until the read is resolved.
     */
    async waitForReadToComplete() {
        if (this.pendingRead) {
            await this.pendingRead;
        }
    }
    /**
     * Close wrapper
     */
    async close() {
        await this.syncAndRelease();
    }
    async syncAndRelease() {
        this.released = true;
        await this.waitForReadToComplete();
        await this.reader.releaseLock();
    }
}
lib.ReadableWebToNodeStream = ReadableWebToNodeStream;

// Primitive types
function dv(array) {
    return new DataView(array.buffer, array.byteOffset);
}
/**
 * 8-bit unsigned integer
 */
const UINT8 = {
    len: 1,
    get(array, offset) {
        return dv(array).getUint8(offset);
    },
    put(array, offset, value) {
        dv(array).setUint8(offset, value);
        return offset + 1;
    }
};
/**
 * 16-bit unsigned integer, Little Endian byte order
 */
const UINT16_LE = {
    len: 2,
    get(array, offset) {
        return dv(array).getUint16(offset, true);
    },
    put(array, offset, value) {
        dv(array).setUint16(offset, value, true);
        return offset + 2;
    }
};
/**
 * 16-bit unsigned integer, Big Endian byte order
 */
const UINT16_BE = {
    len: 2,
    get(array, offset) {
        return dv(array).getUint16(offset);
    },
    put(array, offset, value) {
        dv(array).setUint16(offset, value);
        return offset + 2;
    }
};
/**
 * 32-bit unsigned integer, Little Endian byte order
 */
const UINT32_LE = {
    len: 4,
    get(array, offset) {
        return dv(array).getUint32(offset, true);
    },
    put(array, offset, value) {
        dv(array).setUint32(offset, value, true);
        return offset + 4;
    }
};
/**
 * 32-bit unsigned integer, Big Endian byte order
 */
const UINT32_BE = {
    len: 4,
    get(array, offset) {
        return dv(array).getUint32(offset);
    },
    put(array, offset, value) {
        dv(array).setUint32(offset, value);
        return offset + 4;
    }
};
/**
 * 32-bit signed integer, Big Endian byte order
 */
const INT32_BE = {
    len: 4,
    get(array, offset) {
        return dv(array).getInt32(offset);
    },
    put(array, offset, value) {
        dv(array).setInt32(offset, value);
        return offset + 4;
    }
};
/**
 * 64-bit unsigned integer, Little Endian byte order
 */
const UINT64_LE = {
    len: 8,
    get(array, offset) {
        return dv(array).getBigUint64(offset, true);
    },
    put(array, offset, value) {
        dv(array).setBigUint64(offset, value, true);
        return offset + 8;
    }
};
/**
 * Consume a fixed number of bytes from the stream and return a string with a specified encoding.
 */
class StringType {
    constructor(len, encoding) {
        this.len = len;
        this.encoding = encoding;
    }
    get(uint8Array, offset) {
        return require$$0$5.Buffer.from(uint8Array).toString(this.encoding, offset, offset + this.len);
    }
}

const defaultMessages = 'End-Of-Stream';
/**
 * Thrown on read operation of the end of file or stream has been reached
 */
class EndOfStreamError extends Error {
    constructor() {
        super(defaultMessages);
    }
}

/**
 * Core tokenizer
 */
class AbstractTokenizer {
    constructor(fileInfo) {
        /**
         * Tokenizer-stream position
         */
        this.position = 0;
        this.numBuffer = new Uint8Array(8);
        this.fileInfo = fileInfo ? fileInfo : {};
    }
    /**
     * Read a token from the tokenizer-stream
     * @param token - The token to read
     * @param position - If provided, the desired position in the tokenizer-stream
     * @returns Promise with token data
     */
    async readToken(token, position = this.position) {
        const uint8Array = require$$0$5.Buffer.alloc(token.len);
        const len = await this.readBuffer(uint8Array, { position });
        if (len < token.len)
            throw new EndOfStreamError();
        return token.get(uint8Array, 0);
    }
    /**
     * Peek a token from the tokenizer-stream.
     * @param token - Token to peek from the tokenizer-stream.
     * @param position - Offset where to begin reading within the file. If position is null, data will be read from the current file position.
     * @returns Promise with token data
     */
    async peekToken(token, position = this.position) {
        const uint8Array = require$$0$5.Buffer.alloc(token.len);
        const len = await this.peekBuffer(uint8Array, { position });
        if (len < token.len)
            throw new EndOfStreamError();
        return token.get(uint8Array, 0);
    }
    /**
     * Read a numeric token from the stream
     * @param token - Numeric token
     * @returns Promise with number
     */
    async readNumber(token) {
        const len = await this.readBuffer(this.numBuffer, { length: token.len });
        if (len < token.len)
            throw new EndOfStreamError();
        return token.get(this.numBuffer, 0);
    }
    /**
     * Read a numeric token from the stream
     * @param token - Numeric token
     * @returns Promise with number
     */
    async peekNumber(token) {
        const len = await this.peekBuffer(this.numBuffer, { length: token.len });
        if (len < token.len)
            throw new EndOfStreamError();
        return token.get(this.numBuffer, 0);
    }
    /**
     * Ignore number of bytes, advances the pointer in under tokenizer-stream.
     * @param length - Number of bytes to ignore
     * @return resolves the number of bytes ignored, equals length if this available, otherwise the number of bytes available
     */
    async ignore(length) {
        if (this.fileInfo.size !== undefined) {
            const bytesLeft = this.fileInfo.size - this.position;
            if (length > bytesLeft) {
                this.position += bytesLeft;
                return bytesLeft;
            }
        }
        this.position += length;
        return length;
    }
    async close() {
        // empty
    }
    normalizeOptions(uint8Array, options) {
        if (options && options.position !== undefined && options.position < this.position) {
            throw new Error('`options.position` must be equal or greater than `tokenizer.position`');
        }
        if (options) {
            return {
                mayBeLess: options.mayBeLess === true,
                offset: options.offset ? options.offset : 0,
                length: options.length ? options.length : (uint8Array.length - (options.offset ? options.offset : 0)),
                position: options.position ? options.position : this.position
            };
        }
        return {
            mayBeLess: false,
            offset: 0,
            length: uint8Array.length,
            position: this.position
        };
    }
}

class BufferTokenizer extends AbstractTokenizer {
    /**
     * Construct BufferTokenizer
     * @param uint8Array - Uint8Array to tokenize
     * @param fileInfo - Pass additional file information to the tokenizer
     */
    constructor(uint8Array, fileInfo) {
        super(fileInfo);
        this.uint8Array = uint8Array;
        this.fileInfo.size = this.fileInfo.size ? this.fileInfo.size : uint8Array.length;
    }
    /**
     * Read buffer from tokenizer
     * @param uint8Array - Uint8Array to tokenize
     * @param options - Read behaviour options
     * @returns {Promise<number>}
     */
    async readBuffer(uint8Array, options) {
        if (options && options.position) {
            if (options.position < this.position) {
                throw new Error('`options.position` must be equal or greater than `tokenizer.position`');
            }
            this.position = options.position;
        }
        const bytesRead = await this.peekBuffer(uint8Array, options);
        this.position += bytesRead;
        return bytesRead;
    }
    /**
     * Peek (read ahead) buffer from tokenizer
     * @param uint8Array
     * @param options - Read behaviour options
     * @returns {Promise<number>}
     */
    async peekBuffer(uint8Array, options) {
        const normOptions = this.normalizeOptions(uint8Array, options);
        const bytes2read = Math.min(this.uint8Array.length - normOptions.position, normOptions.length);
        if ((!normOptions.mayBeLess) && bytes2read < normOptions.length) {
            throw new EndOfStreamError();
        }
        else {
            uint8Array.set(this.uint8Array.subarray(normOptions.position, normOptions.position + bytes2read), normOptions.offset);
            return bytes2read;
        }
    }
    async close() {
        // empty
    }
}

/**
 * Construct ReadStreamTokenizer from given Buffer.
 * @param uint8Array - Uint8Array to tokenize
 * @param fileInfo - Pass additional file information to the tokenizer
 * @returns BufferTokenizer
 */
function fromBuffer(uint8Array, fileInfo) {
    return new BufferTokenizer(uint8Array, fileInfo);
}

function stringToBytes(string) {
	return [...string].map(character => character.charCodeAt(0));
}

/**
Checks whether the TAR checksum is valid.

@param {Buffer} buffer - The TAR header `[offset ... offset + 512]`.
@param {number} offset - TAR header offset.
@returns {boolean} `true` if the TAR checksum is valid, otherwise `false`.
*/
function tarHeaderChecksumMatches(buffer, offset = 0) {
	const readSum = Number.parseInt(buffer.toString('utf8', 148, 154).replace(/\0.*$/, '').trim(), 8); // Read sum in header
	if (Number.isNaN(readSum)) {
		return false;
	}

	let sum = 8 * 0x20; // Initialize signed bit sum

	for (let i = offset; i < offset + 148; i++) {
		sum += buffer[i];
	}

	for (let i = offset + 156; i < offset + 512; i++) {
		sum += buffer[i];
	}

	return readSum === sum;
}

/**
ID3 UINT32 sync-safe tokenizer token.
28 bits (representing up to 256MB) integer, the msb is 0 to avoid "false syncsignals".
*/
const uint32SyncSafeToken = {
	get: (buffer, offset) => (buffer[offset + 3] & 0x7F) | ((buffer[offset + 2]) << 7) | ((buffer[offset + 1]) << 14) | ((buffer[offset]) << 21),
	len: 4,
};

const minimumBytes = 4100; // A fair amount of file-types are detectable within this range.

async function fileTypeFromBuffer(input) {
	if (!(input instanceof Uint8Array || input instanceof ArrayBuffer)) {
		throw new TypeError(`Expected the \`input\` argument to be of type \`Uint8Array\` or \`Buffer\` or \`ArrayBuffer\`, got \`${typeof input}\``);
	}

	const buffer = input instanceof Uint8Array ? input : new Uint8Array(input);

	if (!(buffer && buffer.length > 1)) {
		return;
	}

	return fileTypeFromTokenizer(fromBuffer(buffer));
}

function _check(buffer, headers, options) {
	options = {
		offset: 0,
		...options,
	};

	for (const [index, header] of headers.entries()) {
		// If a bitmask is set
		if (options.mask) {
			// If header doesn't equal `buf` with bits masked off
			if (header !== (options.mask[index] & buffer[index + options.offset])) {
				return false;
			}
		} else if (header !== buffer[index + options.offset]) {
			return false;
		}
	}

	return true;
}

async function fileTypeFromTokenizer(tokenizer) {
	try {
		return new FileTypeParser().parse(tokenizer);
	} catch (error) {
		if (!(error instanceof EndOfStreamError)) {
			throw error;
		}
	}
}

class FileTypeParser {
	check(header, options) {
		return _check(this.buffer, header, options);
	}

	checkString(header, options) {
		return this.check(stringToBytes(header), options);
	}

	async parse(tokenizer) {
		this.buffer = require$$0$5.Buffer.alloc(minimumBytes);

		// Keep reading until EOF if the file size is unknown.
		if (tokenizer.fileInfo.size === undefined) {
			tokenizer.fileInfo.size = Number.MAX_SAFE_INTEGER;
		}

		this.tokenizer = tokenizer;

		await tokenizer.peekBuffer(this.buffer, {length: 12, mayBeLess: true});

		// -- 2-byte signatures --

		if (this.check([0x42, 0x4D])) {
			return {
				ext: 'bmp',
				mime: 'image/bmp',
			};
		}

		if (this.check([0x0B, 0x77])) {
			return {
				ext: 'ac3',
				mime: 'audio/vnd.dolby.dd-raw',
			};
		}

		if (this.check([0x78, 0x01])) {
			return {
				ext: 'dmg',
				mime: 'application/x-apple-diskimage',
			};
		}

		if (this.check([0x4D, 0x5A])) {
			return {
				ext: 'exe',
				mime: 'application/x-msdownload',
			};
		}

		if (this.check([0x25, 0x21])) {
			await tokenizer.peekBuffer(this.buffer, {length: 24, mayBeLess: true});

			if (
				this.checkString('PS-Adobe-', {offset: 2})
				&& this.checkString(' EPSF-', {offset: 14})
			) {
				return {
					ext: 'eps',
					mime: 'application/eps',
				};
			}

			return {
				ext: 'ps',
				mime: 'application/postscript',
			};
		}

		if (
			this.check([0x1F, 0xA0])
			|| this.check([0x1F, 0x9D])
		) {
			return {
				ext: 'Z',
				mime: 'application/x-compress',
			};
		}

		// -- 3-byte signatures --

		if (this.check([0xEF, 0xBB, 0xBF])) { // UTF-8-BOM
			// Strip off UTF-8-BOM
			this.tokenizer.ignore(3);
			return this.parse(tokenizer);
		}

		if (this.check([0x47, 0x49, 0x46])) {
			return {
				ext: 'gif',
				mime: 'image/gif',
			};
		}

		if (this.check([0xFF, 0xD8, 0xFF])) {
			return {
				ext: 'jpg',
				mime: 'image/jpeg',
			};
		}

		if (this.check([0x49, 0x49, 0xBC])) {
			return {
				ext: 'jxr',
				mime: 'image/vnd.ms-photo',
			};
		}

		if (this.check([0x1F, 0x8B, 0x8])) {
			return {
				ext: 'gz',
				mime: 'application/gzip',
			};
		}

		if (this.check([0x42, 0x5A, 0x68])) {
			return {
				ext: 'bz2',
				mime: 'application/x-bzip2',
			};
		}

		if (this.checkString('ID3')) {
			await tokenizer.ignore(6); // Skip ID3 header until the header size
			const id3HeaderLength = await tokenizer.readToken(uint32SyncSafeToken);
			if (tokenizer.position + id3HeaderLength > tokenizer.fileInfo.size) {
				// Guess file type based on ID3 header for backward compatibility
				return {
					ext: 'mp3',
					mime: 'audio/mpeg',
				};
			}

			await tokenizer.ignore(id3HeaderLength);
			return fileTypeFromTokenizer(tokenizer); // Skip ID3 header, recursion
		}

		// Musepack, SV7
		if (this.checkString('MP+')) {
			return {
				ext: 'mpc',
				mime: 'audio/x-musepack',
			};
		}

		if (
			(this.buffer[0] === 0x43 || this.buffer[0] === 0x46)
			&& this.check([0x57, 0x53], {offset: 1})
		) {
			return {
				ext: 'swf',
				mime: 'application/x-shockwave-flash',
			};
		}

		// -- 4-byte signatures --

		if (this.checkString('FLIF')) {
			return {
				ext: 'flif',
				mime: 'image/flif',
			};
		}

		if (this.checkString('8BPS')) {
			return {
				ext: 'psd',
				mime: 'image/vnd.adobe.photoshop',
			};
		}

		if (this.checkString('WEBP', {offset: 8})) {
			return {
				ext: 'webp',
				mime: 'image/webp',
			};
		}

		// Musepack, SV8
		if (this.checkString('MPCK')) {
			return {
				ext: 'mpc',
				mime: 'audio/x-musepack',
			};
		}

		if (this.checkString('FORM')) {
			return {
				ext: 'aif',
				mime: 'audio/aiff',
			};
		}

		if (this.checkString('icns', {offset: 0})) {
			return {
				ext: 'icns',
				mime: 'image/icns',
			};
		}

		// Zip-based file formats
		// Need to be before the `zip` check
		if (this.check([0x50, 0x4B, 0x3, 0x4])) { // Local file header signature
			try {
				while (tokenizer.position + 30 < tokenizer.fileInfo.size) {
					await tokenizer.readBuffer(this.buffer, {length: 30});

					// https://en.wikipedia.org/wiki/Zip_(file_format)#File_headers
					const zipHeader = {
						compressedSize: this.buffer.readUInt32LE(18),
						uncompressedSize: this.buffer.readUInt32LE(22),
						filenameLength: this.buffer.readUInt16LE(26),
						extraFieldLength: this.buffer.readUInt16LE(28),
					};

					zipHeader.filename = await tokenizer.readToken(new StringType(zipHeader.filenameLength, 'utf-8'));
					await tokenizer.ignore(zipHeader.extraFieldLength);

					// Assumes signed `.xpi` from addons.mozilla.org
					if (zipHeader.filename === 'META-INF/mozilla.rsa') {
						return {
							ext: 'xpi',
							mime: 'application/x-xpinstall',
						};
					}

					if (zipHeader.filename.endsWith('.rels') || zipHeader.filename.endsWith('.xml')) {
						const type = zipHeader.filename.split('/')[0];
						switch (type) {
							case '_rels':
								break;
							case 'word':
								return {
									ext: 'docx',
									mime: 'application/vnd.openxmlformats-officedocument.wordprocessingml.document',
								};
							case 'ppt':
								return {
									ext: 'pptx',
									mime: 'application/vnd.openxmlformats-officedocument.presentationml.presentation',
								};
							case 'xl':
								return {
									ext: 'xlsx',
									mime: 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
								};
							default:
								break;
						}
					}

					if (zipHeader.filename.startsWith('xl/')) {
						return {
							ext: 'xlsx',
							mime: 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
						};
					}

					if (zipHeader.filename.startsWith('3D/') && zipHeader.filename.endsWith('.model')) {
						return {
							ext: '3mf',
							mime: 'model/3mf',
						};
					}

					// The docx, xlsx and pptx file types extend the Office Open XML file format:
					// https://en.wikipedia.org/wiki/Office_Open_XML_file_formats
					// We look for:
					// - one entry named '[Content_Types].xml' or '_rels/.rels',
					// - one entry indicating specific type of file.
					// MS Office, OpenOffice and LibreOffice may put the parts in different order, so the check should not rely on it.
					if (zipHeader.filename === 'mimetype' && zipHeader.compressedSize === zipHeader.uncompressedSize) {
						const mimeType = (await tokenizer.readToken(new StringType(zipHeader.compressedSize, 'utf-8'))).trim();

						switch (mimeType) {
							case 'application/epub+zip':
								return {
									ext: 'epub',
									mime: 'application/epub+zip',
								};
							case 'application/vnd.oasis.opendocument.text':
								return {
									ext: 'odt',
									mime: 'application/vnd.oasis.opendocument.text',
								};
							case 'application/vnd.oasis.opendocument.spreadsheet':
								return {
									ext: 'ods',
									mime: 'application/vnd.oasis.opendocument.spreadsheet',
								};
							case 'application/vnd.oasis.opendocument.presentation':
								return {
									ext: 'odp',
									mime: 'application/vnd.oasis.opendocument.presentation',
								};
							default:
						}
					}

					// Try to find next header manually when current one is corrupted
					if (zipHeader.compressedSize === 0) {
						let nextHeaderIndex = -1;

						while (nextHeaderIndex < 0 && (tokenizer.position < tokenizer.fileInfo.size)) {
							await tokenizer.peekBuffer(this.buffer, {mayBeLess: true});

							nextHeaderIndex = this.buffer.indexOf('504B0304', 0, 'hex');
							// Move position to the next header if found, skip the whole buffer otherwise
							await tokenizer.ignore(nextHeaderIndex >= 0 ? nextHeaderIndex : this.buffer.length);
						}
					} else {
						await tokenizer.ignore(zipHeader.compressedSize);
					}
				}
			} catch (error) {
				if (!(error instanceof EndOfStreamError)) {
					throw error;
				}
			}

			return {
				ext: 'zip',
				mime: 'application/zip',
			};
		}

		if (this.checkString('OggS')) {
			// This is an OGG container
			await tokenizer.ignore(28);
			const type = require$$0$5.Buffer.alloc(8);
			await tokenizer.readBuffer(type);

			// Needs to be before `ogg` check
			if (_check(type, [0x4F, 0x70, 0x75, 0x73, 0x48, 0x65, 0x61, 0x64])) {
				return {
					ext: 'opus',
					mime: 'audio/opus',
				};
			}

			// If ' theora' in header.
			if (_check(type, [0x80, 0x74, 0x68, 0x65, 0x6F, 0x72, 0x61])) {
				return {
					ext: 'ogv',
					mime: 'video/ogg',
				};
			}

			// If '\x01video' in header.
			if (_check(type, [0x01, 0x76, 0x69, 0x64, 0x65, 0x6F, 0x00])) {
				return {
					ext: 'ogm',
					mime: 'video/ogg',
				};
			}

			// If ' FLAC' in header  https://xiph.org/flac/faq.html
			if (_check(type, [0x7F, 0x46, 0x4C, 0x41, 0x43])) {
				return {
					ext: 'oga',
					mime: 'audio/ogg',
				};
			}

			// 'Speex  ' in header https://en.wikipedia.org/wiki/Speex
			if (_check(type, [0x53, 0x70, 0x65, 0x65, 0x78, 0x20, 0x20])) {
				return {
					ext: 'spx',
					mime: 'audio/ogg',
				};
			}

			// If '\x01vorbis' in header
			if (_check(type, [0x01, 0x76, 0x6F, 0x72, 0x62, 0x69, 0x73])) {
				return {
					ext: 'ogg',
					mime: 'audio/ogg',
				};
			}

			// Default OGG container https://www.iana.org/assignments/media-types/application/ogg
			return {
				ext: 'ogx',
				mime: 'application/ogg',
			};
		}

		if (
			this.check([0x50, 0x4B])
			&& (this.buffer[2] === 0x3 || this.buffer[2] === 0x5 || this.buffer[2] === 0x7)
			&& (this.buffer[3] === 0x4 || this.buffer[3] === 0x6 || this.buffer[3] === 0x8)
		) {
			return {
				ext: 'zip',
				mime: 'application/zip',
			};
		}

		//

		// File Type Box (https://en.wikipedia.org/wiki/ISO_base_media_file_format)
		// It's not required to be first, but it's recommended to be. Almost all ISO base media files start with `ftyp` box.
		// `ftyp` box must contain a brand major identifier, which must consist of ISO 8859-1 printable characters.
		// Here we check for 8859-1 printable characters (for simplicity, it's a mask which also catches one non-printable character).
		if (
			this.checkString('ftyp', {offset: 4})
			&& (this.buffer[8] & 0x60) !== 0x00 // Brand major, first character ASCII?
		) {
			// They all can have MIME `video/mp4` except `application/mp4` special-case which is hard to detect.
			// For some cases, we're specific, everything else falls to `video/mp4` with `mp4` extension.
			const brandMajor = this.buffer.toString('binary', 8, 12).replace('\0', ' ').trim();
			switch (brandMajor) {
				case 'avif':
				case 'avis':
					return {ext: 'avif', mime: 'image/avif'};
				case 'mif1':
					return {ext: 'heic', mime: 'image/heif'};
				case 'msf1':
					return {ext: 'heic', mime: 'image/heif-sequence'};
				case 'heic':
				case 'heix':
					return {ext: 'heic', mime: 'image/heic'};
				case 'hevc':
				case 'hevx':
					return {ext: 'heic', mime: 'image/heic-sequence'};
				case 'qt':
					return {ext: 'mov', mime: 'video/quicktime'};
				case 'M4V':
				case 'M4VH':
				case 'M4VP':
					return {ext: 'm4v', mime: 'video/x-m4v'};
				case 'M4P':
					return {ext: 'm4p', mime: 'video/mp4'};
				case 'M4B':
					return {ext: 'm4b', mime: 'audio/mp4'};
				case 'M4A':
					return {ext: 'm4a', mime: 'audio/x-m4a'};
				case 'F4V':
					return {ext: 'f4v', mime: 'video/mp4'};
				case 'F4P':
					return {ext: 'f4p', mime: 'video/mp4'};
				case 'F4A':
					return {ext: 'f4a', mime: 'audio/mp4'};
				case 'F4B':
					return {ext: 'f4b', mime: 'audio/mp4'};
				case 'crx':
					return {ext: 'cr3', mime: 'image/x-canon-cr3'};
				default:
					if (brandMajor.startsWith('3g')) {
						if (brandMajor.startsWith('3g2')) {
							return {ext: '3g2', mime: 'video/3gpp2'};
						}

						return {ext: '3gp', mime: 'video/3gpp'};
					}

					return {ext: 'mp4', mime: 'video/mp4'};
			}
		}

		if (this.checkString('MThd')) {
			return {
				ext: 'mid',
				mime: 'audio/midi',
			};
		}

		if (
			this.checkString('wOFF')
			&& (
				this.check([0x00, 0x01, 0x00, 0x00], {offset: 4})
				|| this.checkString('OTTO', {offset: 4})
			)
		) {
			return {
				ext: 'woff',
				mime: 'font/woff',
			};
		}

		if (
			this.checkString('wOF2')
			&& (
				this.check([0x00, 0x01, 0x00, 0x00], {offset: 4})
				|| this.checkString('OTTO', {offset: 4})
			)
		) {
			return {
				ext: 'woff2',
				mime: 'font/woff2',
			};
		}

		if (this.check([0xD4, 0xC3, 0xB2, 0xA1]) || this.check([0xA1, 0xB2, 0xC3, 0xD4])) {
			return {
				ext: 'pcap',
				mime: 'application/vnd.tcpdump.pcap',
			};
		}

		// Sony DSD Stream File (DSF)
		if (this.checkString('DSD ')) {
			return {
				ext: 'dsf',
				mime: 'audio/x-dsf', // Non-standard
			};
		}

		if (this.checkString('LZIP')) {
			return {
				ext: 'lz',
				mime: 'application/x-lzip',
			};
		}

		if (this.checkString('fLaC')) {
			return {
				ext: 'flac',
				mime: 'audio/x-flac',
			};
		}

		if (this.check([0x42, 0x50, 0x47, 0xFB])) {
			return {
				ext: 'bpg',
				mime: 'image/bpg',
			};
		}

		if (this.checkString('wvpk')) {
			return {
				ext: 'wv',
				mime: 'audio/wavpack',
			};
		}

		if (this.checkString('%PDF')) {
			await tokenizer.ignore(1350);
			const maxBufferSize = 10 * 1024 * 1024;
			const buffer = require$$0$5.Buffer.alloc(Math.min(maxBufferSize, tokenizer.fileInfo.size));
			await tokenizer.readBuffer(buffer, {mayBeLess: true});

			// Check if this is an Adobe Illustrator file
			if (buffer.includes(require$$0$5.Buffer.from('AIPrivateData'))) {
				return {
					ext: 'ai',
					mime: 'application/postscript',
				};
			}

			// Assume this is just a normal PDF
			return {
				ext: 'pdf',
				mime: 'application/pdf',
			};
		}

		if (this.check([0x00, 0x61, 0x73, 0x6D])) {
			return {
				ext: 'wasm',
				mime: 'application/wasm',
			};
		}

		// TIFF, little-endian type
		if (this.check([0x49, 0x49])) {
			const fileType = await this.readTiffHeader(false);
			if (fileType) {
				return fileType;
			}
		}

		// TIFF, big-endian type
		if (this.check([0x4D, 0x4D])) {
			const fileType = await this.readTiffHeader(true);
			if (fileType) {
				return fileType;
			}
		}

		if (this.checkString('MAC ')) {
			return {
				ext: 'ape',
				mime: 'audio/ape',
			};
		}

		// https://github.com/threatstack/libmagic/blob/master/magic/Magdir/matroska
		if (this.check([0x1A, 0x45, 0xDF, 0xA3])) { // Root element: EBML
			async function readField() {
				const msb = await tokenizer.peekNumber(UINT8);
				let mask = 0x80;
				let ic = 0; // 0 = A, 1 = B, 2 = C, 3
				// = D

				while ((msb & mask) === 0 && mask !== 0) {
					++ic;
					mask >>= 1;
				}

				const id = require$$0$5.Buffer.alloc(ic + 1);
				await tokenizer.readBuffer(id);
				return id;
			}

			async function readElement() {
				const id = await readField();
				const lengthField = await readField();
				lengthField[0] ^= 0x80 >> (lengthField.length - 1);
				const nrLength = Math.min(6, lengthField.length); // JavaScript can max read 6 bytes integer
				return {
					id: id.readUIntBE(0, id.length),
					len: lengthField.readUIntBE(lengthField.length - nrLength, nrLength),
				};
			}

			async function readChildren(children) {
				while (children > 0) {
					const element = await readElement();
					if (element.id === 0x42_82) {
						const rawValue = await tokenizer.readToken(new StringType(element.len, 'utf-8'));
						return rawValue.replace(/\00.*$/g, ''); // Return DocType
					}

					await tokenizer.ignore(element.len); // ignore payload
					--children;
				}
			}

			const re = await readElement();
			const docType = await readChildren(re.len);

			switch (docType) {
				case 'webm':
					return {
						ext: 'webm',
						mime: 'video/webm',
					};

				case 'matroska':
					return {
						ext: 'mkv',
						mime: 'video/x-matroska',
					};

				default:
					return;
			}
		}

		// RIFF file format which might be AVI, WAV, QCP, etc
		if (this.check([0x52, 0x49, 0x46, 0x46])) {
			if (this.check([0x41, 0x56, 0x49], {offset: 8})) {
				return {
					ext: 'avi',
					mime: 'video/vnd.avi',
				};
			}

			if (this.check([0x57, 0x41, 0x56, 0x45], {offset: 8})) {
				return {
					ext: 'wav',
					mime: 'audio/vnd.wave',
				};
			}

			// QLCM, QCP file
			if (this.check([0x51, 0x4C, 0x43, 0x4D], {offset: 8})) {
				return {
					ext: 'qcp',
					mime: 'audio/qcelp',
				};
			}
		}

		if (this.checkString('SQLi')) {
			return {
				ext: 'sqlite',
				mime: 'application/x-sqlite3',
			};
		}

		if (this.check([0x4E, 0x45, 0x53, 0x1A])) {
			return {
				ext: 'nes',
				mime: 'application/x-nintendo-nes-rom',
			};
		}

		if (this.checkString('Cr24')) {
			return {
				ext: 'crx',
				mime: 'application/x-google-chrome-extension',
			};
		}

		if (
			this.checkString('MSCF')
			|| this.checkString('ISc(')
		) {
			return {
				ext: 'cab',
				mime: 'application/vnd.ms-cab-compressed',
			};
		}

		if (this.check([0xED, 0xAB, 0xEE, 0xDB])) {
			return {
				ext: 'rpm',
				mime: 'application/x-rpm',
			};
		}

		if (this.check([0xC5, 0xD0, 0xD3, 0xC6])) {
			return {
				ext: 'eps',
				mime: 'application/eps',
			};
		}

		if (this.check([0x28, 0xB5, 0x2F, 0xFD])) {
			return {
				ext: 'zst',
				mime: 'application/zstd',
			};
		}

		if (this.check([0x7F, 0x45, 0x4C, 0x46])) {
			return {
				ext: 'elf',
				mime: 'application/x-elf',
			};
		}

		// -- 5-byte signatures --

		if (this.check([0x4F, 0x54, 0x54, 0x4F, 0x00])) {
			return {
				ext: 'otf',
				mime: 'font/otf',
			};
		}

		if (this.checkString('#!AMR')) {
			return {
				ext: 'amr',
				mime: 'audio/amr',
			};
		}

		if (this.checkString('{\\rtf')) {
			return {
				ext: 'rtf',
				mime: 'application/rtf',
			};
		}

		if (this.check([0x46, 0x4C, 0x56, 0x01])) {
			return {
				ext: 'flv',
				mime: 'video/x-flv',
			};
		}

		if (this.checkString('IMPM')) {
			return {
				ext: 'it',
				mime: 'audio/x-it',
			};
		}

		if (
			this.checkString('-lh0-', {offset: 2})
			|| this.checkString('-lh1-', {offset: 2})
			|| this.checkString('-lh2-', {offset: 2})
			|| this.checkString('-lh3-', {offset: 2})
			|| this.checkString('-lh4-', {offset: 2})
			|| this.checkString('-lh5-', {offset: 2})
			|| this.checkString('-lh6-', {offset: 2})
			|| this.checkString('-lh7-', {offset: 2})
			|| this.checkString('-lzs-', {offset: 2})
			|| this.checkString('-lz4-', {offset: 2})
			|| this.checkString('-lz5-', {offset: 2})
			|| this.checkString('-lhd-', {offset: 2})
		) {
			return {
				ext: 'lzh',
				mime: 'application/x-lzh-compressed',
			};
		}

		// MPEG program stream (PS or MPEG-PS)
		if (this.check([0x00, 0x00, 0x01, 0xBA])) {
			//  MPEG-PS, MPEG-1 Part 1
			if (this.check([0x21], {offset: 4, mask: [0xF1]})) {
				return {
					ext: 'mpg', // May also be .ps, .mpeg
					mime: 'video/MP1S',
				};
			}

			// MPEG-PS, MPEG-2 Part 1
			if (this.check([0x44], {offset: 4, mask: [0xC4]})) {
				return {
					ext: 'mpg', // May also be .mpg, .m2p, .vob or .sub
					mime: 'video/MP2P',
				};
			}
		}

		if (this.checkString('ITSF')) {
			return {
				ext: 'chm',
				mime: 'application/vnd.ms-htmlhelp',
			};
		}

		// -- 6-byte signatures --

		if (this.check([0xFD, 0x37, 0x7A, 0x58, 0x5A, 0x00])) {
			return {
				ext: 'xz',
				mime: 'application/x-xz',
			};
		}

		if (this.checkString('<?xml ')) {
			return {
				ext: 'xml',
				mime: 'application/xml',
			};
		}

		if (this.check([0x37, 0x7A, 0xBC, 0xAF, 0x27, 0x1C])) {
			return {
				ext: '7z',
				mime: 'application/x-7z-compressed',
			};
		}

		if (
			this.check([0x52, 0x61, 0x72, 0x21, 0x1A, 0x7])
			&& (this.buffer[6] === 0x0 || this.buffer[6] === 0x1)
		) {
			return {
				ext: 'rar',
				mime: 'application/x-rar-compressed',
			};
		}

		if (this.checkString('solid ')) {
			return {
				ext: 'stl',
				mime: 'model/stl',
			};
		}

		// -- 7-byte signatures --

		if (this.checkString('BLENDER')) {
			return {
				ext: 'blend',
				mime: 'application/x-blender',
			};
		}

		if (this.checkString('!<arch>')) {
			await tokenizer.ignore(8);
			const string = await tokenizer.readToken(new StringType(13, 'ascii'));
			if (string === 'debian-binary') {
				return {
					ext: 'deb',
					mime: 'application/x-deb',
				};
			}

			return {
				ext: 'ar',
				mime: 'application/x-unix-archive',
			};
		}

		// -- 8-byte signatures --

		if (this.check([0x89, 0x50, 0x4E, 0x47, 0x0D, 0x0A, 0x1A, 0x0A])) {
			// APNG format (https://wiki.mozilla.org/APNG_Specification)
			// 1. Find the first IDAT (image data) chunk (49 44 41 54)
			// 2. Check if there is an "acTL" chunk before the IDAT one (61 63 54 4C)

			// Offset calculated as follows:
			// - 8 bytes: PNG signature
			// - 4 (length) + 4 (chunk type) + 13 (chunk data) + 4 (CRC): IHDR chunk

			await tokenizer.ignore(8); // ignore PNG signature

			async function readChunkHeader() {
				return {
					length: await tokenizer.readToken(INT32_BE),
					type: await tokenizer.readToken(new StringType(4, 'binary')),
				};
			}

			do {
				const chunk = await readChunkHeader();
				if (chunk.length < 0) {
					return; // Invalid chunk length
				}

				switch (chunk.type) {
					case 'IDAT':
						return {
							ext: 'png',
							mime: 'image/png',
						};
					case 'acTL':
						return {
							ext: 'apng',
							mime: 'image/apng',
						};
					default:
						await tokenizer.ignore(chunk.length + 4); // Ignore chunk-data + CRC
				}
			} while (tokenizer.position + 8 < tokenizer.fileInfo.size);

			return {
				ext: 'png',
				mime: 'image/png',
			};
		}

		if (this.check([0x41, 0x52, 0x52, 0x4F, 0x57, 0x31, 0x00, 0x00])) {
			return {
				ext: 'arrow',
				mime: 'application/x-apache-arrow',
			};
		}

		if (this.check([0x67, 0x6C, 0x54, 0x46, 0x02, 0x00, 0x00, 0x00])) {
			return {
				ext: 'glb',
				mime: 'model/gltf-binary',
			};
		}

		// `mov` format variants
		if (
			this.check([0x66, 0x72, 0x65, 0x65], {offset: 4}) // `free`
			|| this.check([0x6D, 0x64, 0x61, 0x74], {offset: 4}) // `mdat` MJPEG
			|| this.check([0x6D, 0x6F, 0x6F, 0x76], {offset: 4}) // `moov`
			|| this.check([0x77, 0x69, 0x64, 0x65], {offset: 4}) // `wide`
		) {
			return {
				ext: 'mov',
				mime: 'video/quicktime',
			};
		}

		// -- 9-byte signatures --

		if (this.check([0x49, 0x49, 0x52, 0x4F, 0x08, 0x00, 0x00, 0x00, 0x18])) {
			return {
				ext: 'orf',
				mime: 'image/x-olympus-orf',
			};
		}

		if (this.checkString('gimp xcf ')) {
			return {
				ext: 'xcf',
				mime: 'image/x-xcf',
			};
		}

		// -- 12-byte signatures --

		if (this.check([0x49, 0x49, 0x55, 0x00, 0x18, 0x00, 0x00, 0x00, 0x88, 0xE7, 0x74, 0xD8])) {
			return {
				ext: 'rw2',
				mime: 'image/x-panasonic-rw2',
			};
		}

		// ASF_Header_Object first 80 bytes
		if (this.check([0x30, 0x26, 0xB2, 0x75, 0x8E, 0x66, 0xCF, 0x11, 0xA6, 0xD9])) {
			async function readHeader() {
				const guid = require$$0$5.Buffer.alloc(16);
				await tokenizer.readBuffer(guid);
				return {
					id: guid,
					size: Number(await tokenizer.readToken(UINT64_LE)),
				};
			}

			await tokenizer.ignore(30);
			// Search for header should be in first 1KB of file.
			while (tokenizer.position + 24 < tokenizer.fileInfo.size) {
				const header = await readHeader();
				let payload = header.size - 24;
				if (_check(header.id, [0x91, 0x07, 0xDC, 0xB7, 0xB7, 0xA9, 0xCF, 0x11, 0x8E, 0xE6, 0x00, 0xC0, 0x0C, 0x20, 0x53, 0x65])) {
					// Sync on Stream-Properties-Object (B7DC0791-A9B7-11CF-8EE6-00C00C205365)
					const typeId = require$$0$5.Buffer.alloc(16);
					payload -= await tokenizer.readBuffer(typeId);

					if (_check(typeId, [0x40, 0x9E, 0x69, 0xF8, 0x4D, 0x5B, 0xCF, 0x11, 0xA8, 0xFD, 0x00, 0x80, 0x5F, 0x5C, 0x44, 0x2B])) {
						// Found audio:
						return {
							ext: 'asf',
							mime: 'audio/x-ms-asf',
						};
					}

					if (_check(typeId, [0xC0, 0xEF, 0x19, 0xBC, 0x4D, 0x5B, 0xCF, 0x11, 0xA8, 0xFD, 0x00, 0x80, 0x5F, 0x5C, 0x44, 0x2B])) {
						// Found video:
						return {
							ext: 'asf',
							mime: 'video/x-ms-asf',
						};
					}

					break;
				}

				await tokenizer.ignore(payload);
			}

			// Default to ASF generic extension
			return {
				ext: 'asf',
				mime: 'application/vnd.ms-asf',
			};
		}

		if (this.check([0xAB, 0x4B, 0x54, 0x58, 0x20, 0x31, 0x31, 0xBB, 0x0D, 0x0A, 0x1A, 0x0A])) {
			return {
				ext: 'ktx',
				mime: 'image/ktx',
			};
		}

		if ((this.check([0x7E, 0x10, 0x04]) || this.check([0x7E, 0x18, 0x04])) && this.check([0x30, 0x4D, 0x49, 0x45], {offset: 4})) {
			return {
				ext: 'mie',
				mime: 'application/x-mie',
			};
		}

		if (this.check([0x27, 0x0A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00], {offset: 2})) {
			return {
				ext: 'shp',
				mime: 'application/x-esri-shape',
			};
		}

		if (this.check([0x00, 0x00, 0x00, 0x0C, 0x6A, 0x50, 0x20, 0x20, 0x0D, 0x0A, 0x87, 0x0A])) {
			// JPEG-2000 family

			await tokenizer.ignore(20);
			const type = await tokenizer.readToken(new StringType(4, 'ascii'));
			switch (type) {
				case 'jp2 ':
					return {
						ext: 'jp2',
						mime: 'image/jp2',
					};
				case 'jpx ':
					return {
						ext: 'jpx',
						mime: 'image/jpx',
					};
				case 'jpm ':
					return {
						ext: 'jpm',
						mime: 'image/jpm',
					};
				case 'mjp2':
					return {
						ext: 'mj2',
						mime: 'image/mj2',
					};
				default:
					return;
			}
		}

		if (
			this.check([0xFF, 0x0A])
			|| this.check([0x00, 0x00, 0x00, 0x0C, 0x4A, 0x58, 0x4C, 0x20, 0x0D, 0x0A, 0x87, 0x0A])
		) {
			return {
				ext: 'jxl',
				mime: 'image/jxl',
			};
		}

		if (this.check([0xFE, 0xFF])) { // UTF-16-BOM-LE
			if (this.check([0, 60, 0, 63, 0, 120, 0, 109, 0, 108], {offset: 2})) {
				return {
					ext: 'xml',
					mime: 'application/xml',
				};
			}

			return undefined; // Some unknown text based format
		}

		// -- Unsafe signatures --

		if (
			this.check([0x0, 0x0, 0x1, 0xBA])
			|| this.check([0x0, 0x0, 0x1, 0xB3])
		) {
			return {
				ext: 'mpg',
				mime: 'video/mpeg',
			};
		}

		if (this.check([0x00, 0x01, 0x00, 0x00, 0x00])) {
			return {
				ext: 'ttf',
				mime: 'font/ttf',
			};
		}

		if (this.check([0x00, 0x00, 0x01, 0x00])) {
			return {
				ext: 'ico',
				mime: 'image/x-icon',
			};
		}

		if (this.check([0x00, 0x00, 0x02, 0x00])) {
			return {
				ext: 'cur',
				mime: 'image/x-icon',
			};
		}

		if (this.check([0xD0, 0xCF, 0x11, 0xE0, 0xA1, 0xB1, 0x1A, 0xE1])) {
			// Detected Microsoft Compound File Binary File (MS-CFB) Format.
			return {
				ext: 'cfb',
				mime: 'application/x-cfb',
			};
		}

		// Increase sample size from 12 to 256.
		await tokenizer.peekBuffer(this.buffer, {length: Math.min(256, tokenizer.fileInfo.size), mayBeLess: true});

		// -- 15-byte signatures --

		if (this.checkString('BEGIN:')) {
			if (this.checkString('VCARD', {offset: 6})) {
				return {
					ext: 'vcf',
					mime: 'text/vcard',
				};
			}

			if (this.checkString('VCALENDAR', {offset: 6})) {
				return {
					ext: 'ics',
					mime: 'text/calendar',
				};
			}
		}

		// `raf` is here just to keep all the raw image detectors together.
		if (this.checkString('FUJIFILMCCD-RAW')) {
			return {
				ext: 'raf',
				mime: 'image/x-fujifilm-raf',
			};
		}

		if (this.checkString('Extended Module:')) {
			return {
				ext: 'xm',
				mime: 'audio/x-xm',
			};
		}

		if (this.checkString('Creative Voice File')) {
			return {
				ext: 'voc',
				mime: 'audio/x-voc',
			};
		}

		if (this.check([0x04, 0x00, 0x00, 0x00]) && this.buffer.length >= 16) { // Rough & quick check Pickle/ASAR
			const jsonSize = this.buffer.readUInt32LE(12);
			if (jsonSize > 12 && this.buffer.length >= jsonSize + 16) {
				try {
					const header = this.buffer.slice(16, jsonSize + 16).toString();
					const json = JSON.parse(header);
					// Check if Pickle is ASAR
					if (json.files) { // Final check, assuring Pickle/ASAR format
						return {
							ext: 'asar',
							mime: 'application/x-asar',
						};
					}
				} catch {}
			}
		}

		if (this.check([0x06, 0x0E, 0x2B, 0x34, 0x02, 0x05, 0x01, 0x01, 0x0D, 0x01, 0x02, 0x01, 0x01, 0x02])) {
			return {
				ext: 'mxf',
				mime: 'application/mxf',
			};
		}

		if (this.checkString('SCRM', {offset: 44})) {
			return {
				ext: 's3m',
				mime: 'audio/x-s3m',
			};
		}

		// Raw MPEG-2 transport stream (188-byte packets)
		if (this.check([0x47]) && this.check([0x47], {offset: 188})) {
			return {
				ext: 'mts',
				mime: 'video/mp2t',
			};
		}

		// Blu-ray Disc Audio-Video (BDAV) MPEG-2 transport stream has 4-byte TP_extra_header before each 188-byte packet
		if (this.check([0x47], {offset: 4}) && this.check([0x47], {offset: 196})) {
			return {
				ext: 'mts',
				mime: 'video/mp2t',
			};
		}

		if (this.check([0x42, 0x4F, 0x4F, 0x4B, 0x4D, 0x4F, 0x42, 0x49], {offset: 60})) {
			return {
				ext: 'mobi',
				mime: 'application/x-mobipocket-ebook',
			};
		}

		if (this.check([0x44, 0x49, 0x43, 0x4D], {offset: 128})) {
			return {
				ext: 'dcm',
				mime: 'application/dicom',
			};
		}

		if (this.check([0x4C, 0x00, 0x00, 0x00, 0x01, 0x14, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x46])) {
			return {
				ext: 'lnk',
				mime: 'application/x.ms.shortcut', // Invented by us
			};
		}

		if (this.check([0x62, 0x6F, 0x6F, 0x6B, 0x00, 0x00, 0x00, 0x00, 0x6D, 0x61, 0x72, 0x6B, 0x00, 0x00, 0x00, 0x00])) {
			return {
				ext: 'alias',
				mime: 'application/x.apple.alias', // Invented by us
			};
		}

		if (
			this.check([0x4C, 0x50], {offset: 34})
			&& (
				this.check([0x00, 0x00, 0x01], {offset: 8})
				|| this.check([0x01, 0x00, 0x02], {offset: 8})
				|| this.check([0x02, 0x00, 0x02], {offset: 8})
			)
		) {
			return {
				ext: 'eot',
				mime: 'application/vnd.ms-fontobject',
			};
		}

		if (this.check([0x06, 0x06, 0xED, 0xF5, 0xD8, 0x1D, 0x46, 0xE5, 0xBD, 0x31, 0xEF, 0xE7, 0xFE, 0x74, 0xB7, 0x1D])) {
			return {
				ext: 'indd',
				mime: 'application/x-indesign',
			};
		}

		// Increase sample size from 256 to 512
		await tokenizer.peekBuffer(this.buffer, {length: Math.min(512, tokenizer.fileInfo.size), mayBeLess: true});

		// Requires a buffer size of 512 bytes
		if (tarHeaderChecksumMatches(this.buffer)) {
			return {
				ext: 'tar',
				mime: 'application/x-tar',
			};
		}

		if (this.check([0xFF, 0xFE])) { // UTF-16-BOM-BE
			if (this.check([60, 0, 63, 0, 120, 0, 109, 0, 108, 0], {offset: 2})) {
				return {
					ext: 'xml',
					mime: 'application/xml',
				};
			}

			if (this.check([0xFF, 0x0E, 0x53, 0x00, 0x6B, 0x00, 0x65, 0x00, 0x74, 0x00, 0x63, 0x00, 0x68, 0x00, 0x55, 0x00, 0x70, 0x00, 0x20, 0x00, 0x4D, 0x00, 0x6F, 0x00, 0x64, 0x00, 0x65, 0x00, 0x6C, 0x00], {offset: 2})) {
				return {
					ext: 'skp',
					mime: 'application/vnd.sketchup.skp',
				};
			}

			return undefined; // Some text based format
		}

		if (this.checkString('-----BEGIN PGP MESSAGE-----')) {
			return {
				ext: 'pgp',
				mime: 'application/pgp-encrypted',
			};
		}

		// Check MPEG 1 or 2 Layer 3 header, or 'layer 0' for ADTS (MPEG sync-word 0xFFE)
		if (this.buffer.length >= 2 && this.check([0xFF, 0xE0], {offset: 0, mask: [0xFF, 0xE0]})) {
			if (this.check([0x10], {offset: 1, mask: [0x16]})) {
				// Check for (ADTS) MPEG-2
				if (this.check([0x08], {offset: 1, mask: [0x08]})) {
					return {
						ext: 'aac',
						mime: 'audio/aac',
					};
				}

				// Must be (ADTS) MPEG-4
				return {
					ext: 'aac',
					mime: 'audio/aac',
				};
			}

			// MPEG 1 or 2 Layer 3 header
			// Check for MPEG layer 3
			if (this.check([0x02], {offset: 1, mask: [0x06]})) {
				return {
					ext: 'mp3',
					mime: 'audio/mpeg',
				};
			}

			// Check for MPEG layer 2
			if (this.check([0x04], {offset: 1, mask: [0x06]})) {
				return {
					ext: 'mp2',
					mime: 'audio/mpeg',
				};
			}

			// Check for MPEG layer 1
			if (this.check([0x06], {offset: 1, mask: [0x06]})) {
				return {
					ext: 'mp1',
					mime: 'audio/mpeg',
				};
			}
		}
	}

	async readTiffTag(bigEndian) {
		const tagId = await this.tokenizer.readToken(bigEndian ? UINT16_BE : UINT16_LE);
		this.tokenizer.ignore(10);
		switch (tagId) {
			case 50_341:
				return {
					ext: 'arw',
					mime: 'image/x-sony-arw',
				};
			case 50_706:
				return {
					ext: 'dng',
					mime: 'image/x-adobe-dng',
				};
		}
	}

	async readTiffIFD(bigEndian) {
		const numberOfTags = await this.tokenizer.readToken(bigEndian ? UINT16_BE : UINT16_LE);
		for (let n = 0; n < numberOfTags; ++n) {
			const fileType = await this.readTiffTag(bigEndian);
			if (fileType) {
				return fileType;
			}
		}
	}

	async readTiffHeader(bigEndian) {
		const version = (bigEndian ? UINT16_BE : UINT16_LE).get(this.buffer, 2);
		const ifdOffset = (bigEndian ? UINT32_BE : UINT32_LE).get(this.buffer, 4);

		if (version === 42) {
			// TIFF file header
			if (ifdOffset >= 6) {
				if (this.checkString('CR', {offset: 8})) {
					return {
						ext: 'cr2',
						mime: 'image/x-canon-cr2',
					};
				}

				if (ifdOffset >= 8 && (this.check([0x1C, 0x00, 0xFE, 0x00], {offset: 8}) || this.check([0x1F, 0x00, 0x0B, 0x00], {offset: 8}))) {
					return {
						ext: 'nef',
						mime: 'image/x-nikon-nef',
					};
				}
			}

			await this.tokenizer.ignore(ifdOffset);
			const fileType = await this.readTiffIFD(false);
			return fileType ? fileType : {
				ext: 'tif',
				mime: 'image/tiff',
			};
		}

		if (version === 43) {	// Big TIFF file header
			return {
				ext: 'tif',
				mime: 'image/tiff',
			};
		}
	}
}

function escapeStringRegexp(string) {
	if (typeof string !== 'string') {
		throw new TypeError('Expected a string');
	}

	// Escape characters with special meaning either inside or outside character sets.
	// Use a simple backslash escape when it’s always valid, and a `\xnn` escape when the simpler form would be disallowed by Unicode patterns’ stricter grammar.
	return string
		.replace(/[|\\{}()[\]^$+*?.]/g, '\\$&')
		.replace(/-/g, '\\x2d');
}

function trimRepeated(string, target) {
	if (typeof string !== 'string' || typeof target !== 'string') {
		throw new TypeError('Expected a string');
	}

	const regex = new RegExp(`(?:${escapeStringRegexp(target)}){2,}`, 'g');

	return string.replace(regex, target);
}

/* eslint-disable no-control-regex */

function filenameReservedRegex() {
	return /[<>:"/\\|?*\u0000-\u001F]/g;
}

function windowsReservedNameRegex() {
	return /^(con|prn|aux|nul|com\d|lpt\d)$/i;
}

function stripOuter(string, substring) {
	if (typeof string !== 'string' || typeof substring !== 'string') {
		throw new TypeError('Expected a string');
	}

	if (string.startsWith(substring)) {
		string = string.slice(substring.length);
	}

	if (string.endsWith(substring)) {
		string = string.slice(0, -substring.length);
	}

	return string;
}

// Doesn't make sense to have longer filenames
const MAX_FILENAME_LENGTH = 100;

const reControlChars = /[\u0000-\u001F\u0080-\u009F]/g; // eslint-disable-line no-control-regex
const reRelativePath = /^\.+/;
const reTrailingPeriods = /\.+$/;

function filenamify(string, options = {}) {
	if (typeof string !== 'string') {
		throw new TypeError('Expected a string');
	}

	const replacement = options.replacement === undefined ? '!' : options.replacement;

	if (filenameReservedRegex().test(replacement) && reControlChars.test(replacement)) {
		throw new Error('Replacement string cannot contain reserved filename characters');
	}

	string = string.replace(filenameReservedRegex(), replacement);
	string = string.replace(reControlChars, replacement);
	string = string.replace(reRelativePath, replacement);
	string = string.replace(reTrailingPeriods, '');

	if (replacement.length > 0) {
		string = trimRepeated(string, replacement);
		string = string.length > 1 ? stripOuter(string, replacement) : string;
	}

	string = windowsReservedNameRegex().test(string) ? string + replacement : string;
	const allowedLength = typeof options.maxLength === 'number' ? options.maxLength : MAX_FILENAME_LENGTH;
	if (string.length > allowedLength) {
		const extensionIndex = string.lastIndexOf('.');
		string = string.slice(0, Math.min(allowedLength, extensionIndex)) + string.slice(extensionIndex);
	}

	return string;
}

/*! arch. MIT License. Feross Aboukhadijeh <https://feross.org/opensource> */

var arch;
var hasRequiredArch;

function requireArch () {
	if (hasRequiredArch) return arch;
	hasRequiredArch = 1;
	var cp = require$$0__default$9["default"];
	var fs = require$$0__default$2["default"];
	var path = path__default["default"];

	/**
	 * Returns the operating system's CPU architecture. This is different than
	 * `process.arch` or `os.arch()` which returns the architecture the Node.js (or
	 * Electron) binary was compiled for.
	 */
	arch = function arch () {
	  /**
	   * The running binary is 64-bit, so the OS is clearly 64-bit.
	   */
	  if (process.arch === 'x64') {
	    return 'x64'
	  }

	  /**
	   * All recent versions of Mac OS are 64-bit.
	   */
	  if (process.platform === 'darwin') {
	    return 'x64'
	  }

	  /**
	   * On Windows, the most reliable way to detect a 64-bit OS from within a 32-bit
	   * app is based on the presence of a WOW64 file: %SystemRoot%\SysNative.
	   * See: https://twitter.com/feross/status/776949077208510464
	   */
	  if (process.platform === 'win32') {
	    var useEnv = false;
	    try {
	      useEnv = !!(process.env.SYSTEMROOT && fs.statSync(process.env.SYSTEMROOT));
	    } catch (err) {}

	    var sysRoot = useEnv ? process.env.SYSTEMROOT : 'C:\\Windows';

	    // If %SystemRoot%\SysNative exists, we are in a WOW64 FS Redirected application.
	    var isWOW64 = false;
	    try {
	      isWOW64 = !!fs.statSync(path.join(sysRoot, 'sysnative'));
	    } catch (err) {}

	    return isWOW64 ? 'x64' : 'x86'
	  }

	  /**
	   * On Linux, use the `getconf` command to get the architecture.
	   */
	  if (process.platform === 'linux') {
	    var output = cp.execSync('getconf LONG_BIT', { encoding: 'utf8' });
	    return output === '64\n' ? 'x64' : 'x86'
	  }

	  /**
	   * If none of the above, assume the architecture is 32-bit.
	   */
	  return 'x86'
	};
	return arch;
}

var osFilterObj = input => {
	const arch = requireArch()();
	const check = (bool, key, val) => (!bool || !key || key === val);

	return input.filter(x => [process.platform, arch].every((y, i) => check(i === 0, x.os, y) && check(i === 1, x.arch, y)));
};

var binCheck = {exports: {}};

var execa$3 = {exports: {}};

var crossSpawn$2 = {exports: {}};

var windows;
var hasRequiredWindows;

function requireWindows () {
	if (hasRequiredWindows) return windows;
	hasRequiredWindows = 1;
	windows = isexe;
	isexe.sync = sync;

	var fs = require$$0__default$2["default"];

	function checkPathExt (path, options) {
	  var pathext = options.pathExt !== undefined ?
	    options.pathExt : process.env.PATHEXT;

	  if (!pathext) {
	    return true
	  }

	  pathext = pathext.split(';');
	  if (pathext.indexOf('') !== -1) {
	    return true
	  }
	  for (var i = 0; i < pathext.length; i++) {
	    var p = pathext[i].toLowerCase();
	    if (p && path.substr(-p.length).toLowerCase() === p) {
	      return true
	    }
	  }
	  return false
	}

	function checkStat (stat, path, options) {
	  if (!stat.isSymbolicLink() && !stat.isFile()) {
	    return false
	  }
	  return checkPathExt(path, options)
	}

	function isexe (path, options, cb) {
	  fs.stat(path, function (er, stat) {
	    cb(er, er ? false : checkStat(stat, path, options));
	  });
	}

	function sync (path, options) {
	  return checkStat(fs.statSync(path), path, options)
	}
	return windows;
}

var mode;
var hasRequiredMode;

function requireMode () {
	if (hasRequiredMode) return mode;
	hasRequiredMode = 1;
	mode = isexe;
	isexe.sync = sync;

	var fs = require$$0__default$2["default"];

	function isexe (path, options, cb) {
	  fs.stat(path, function (er, stat) {
	    cb(er, er ? false : checkStat(stat, options));
	  });
	}

	function sync (path, options) {
	  return checkStat(fs.statSync(path), options)
	}

	function checkStat (stat, options) {
	  return stat.isFile() && checkMode(stat, options)
	}

	function checkMode (stat, options) {
	  var mod = stat.mode;
	  var uid = stat.uid;
	  var gid = stat.gid;

	  var myUid = options.uid !== undefined ?
	    options.uid : process.getuid && process.getuid();
	  var myGid = options.gid !== undefined ?
	    options.gid : process.getgid && process.getgid();

	  var u = parseInt('100', 8);
	  var g = parseInt('010', 8);
	  var o = parseInt('001', 8);
	  var ug = u | g;

	  var ret = (mod & o) ||
	    (mod & g) && gid === myGid ||
	    (mod & u) && uid === myUid ||
	    (mod & ug) && myUid === 0;

	  return ret
	}
	return mode;
}

var core$1;
if (process.platform === 'win32' || commonjsGlobal.TESTING_WINDOWS) {
  core$1 = requireWindows();
} else {
  core$1 = requireMode();
}

var isexe_1 = isexe$2;
isexe$2.sync = sync;

function isexe$2 (path, options, cb) {
  if (typeof options === 'function') {
    cb = options;
    options = {};
  }

  if (!cb) {
    if (typeof Promise !== 'function') {
      throw new TypeError('callback not provided')
    }

    return new Promise(function (resolve, reject) {
      isexe$2(path, options || {}, function (er, is) {
        if (er) {
          reject(er);
        } else {
          resolve(is);
        }
      });
    })
  }

  core$1(path, options || {}, function (er, is) {
    // ignore EACCES because that just means we aren't allowed to run it
    if (er) {
      if (er.code === 'EACCES' || options && options.ignoreErrors) {
        er = null;
        is = false;
      }
    }
    cb(er, is);
  });
}

function sync (path, options) {
  // my kingdom for a filtered catch
  try {
    return core$1.sync(path, options || {})
  } catch (er) {
    if (options && options.ignoreErrors || er.code === 'EACCES') {
      return false
    } else {
      throw er
    }
  }
}

var which_1$1 = which$3;
which$3.sync = whichSync$1;

var isWindows$1 = process.platform === 'win32' ||
    process.env.OSTYPE === 'cygwin' ||
    process.env.OSTYPE === 'msys';

var path$5 = path__default["default"];
var COLON$1 = isWindows$1 ? ';' : ':';
var isexe$1 = isexe_1;

function getNotFoundError$1 (cmd) {
  var er = new Error('not found: ' + cmd);
  er.code = 'ENOENT';

  return er
}

function getPathInfo$1 (cmd, opt) {
  var colon = opt.colon || COLON$1;
  var pathEnv = opt.path || process.env.PATH || '';
  var pathExt = [''];

  pathEnv = pathEnv.split(colon);

  var pathExtExe = '';
  if (isWindows$1) {
    pathEnv.unshift(process.cwd());
    pathExtExe = (opt.pathExt || process.env.PATHEXT || '.EXE;.CMD;.BAT;.COM');
    pathExt = pathExtExe.split(colon);


    // Always test the cmd itself first.  isexe will check to make sure
    // it's found in the pathExt set.
    if (cmd.indexOf('.') !== -1 && pathExt[0] !== '')
      pathExt.unshift('');
  }

  // If it has a slash, then we don't bother searching the pathenv.
  // just check the file itself, and that's it.
  if (cmd.match(/\//) || isWindows$1 && cmd.match(/\\/))
    pathEnv = [''];

  return {
    env: pathEnv,
    ext: pathExt,
    extExe: pathExtExe
  }
}

function which$3 (cmd, opt, cb) {
  if (typeof opt === 'function') {
    cb = opt;
    opt = {};
  }

  var info = getPathInfo$1(cmd, opt);
  var pathEnv = info.env;
  var pathExt = info.ext;
  var pathExtExe = info.extExe;
  var found = []

  ;(function F (i, l) {
    if (i === l) {
      if (opt.all && found.length)
        return cb(null, found)
      else
        return cb(getNotFoundError$1(cmd))
    }

    var pathPart = pathEnv[i];
    if (pathPart.charAt(0) === '"' && pathPart.slice(-1) === '"')
      pathPart = pathPart.slice(1, -1);

    var p = path$5.join(pathPart, cmd);
    if (!pathPart && (/^\.[\\\/]/).test(cmd)) {
      p = cmd.slice(0, 2) + p;
    }
(function E (ii, ll) {
      if (ii === ll) return F(i + 1, l)
      var ext = pathExt[ii];
      isexe$1(p + ext, { pathExt: pathExtExe }, function (er, is) {
        if (!er && is) {
          if (opt.all)
            found.push(p + ext);
          else
            return cb(null, p + ext)
        }
        return E(ii + 1, ll)
      });
    })(0, pathExt.length);
  })(0, pathEnv.length);
}

function whichSync$1 (cmd, opt) {
  opt = opt || {};

  var info = getPathInfo$1(cmd, opt);
  var pathEnv = info.env;
  var pathExt = info.ext;
  var pathExtExe = info.extExe;
  var found = [];

  for (var i = 0, l = pathEnv.length; i < l; i ++) {
    var pathPart = pathEnv[i];
    if (pathPart.charAt(0) === '"' && pathPart.slice(-1) === '"')
      pathPart = pathPart.slice(1, -1);

    var p = path$5.join(pathPart, cmd);
    if (!pathPart && /^\.[\\\/]/.test(cmd)) {
      p = cmd.slice(0, 2) + p;
    }
    for (var j = 0, ll = pathExt.length; j < ll; j ++) {
      var cur = p + pathExt[j];
      var is;
      try {
        is = isexe$1.sync(cur, { pathExt: pathExtExe });
        if (is) {
          if (opt.all)
            found.push(cur);
          else
            return cur
        }
      } catch (ex) {}
    }
  }

  if (opt.all && found.length)
    return found

  if (opt.nothrow)
    return null

  throw getNotFoundError$1(cmd)
}

var map = {exports: {}};

var pseudomap;
var hasRequiredPseudomap;

function requirePseudomap () {
	if (hasRequiredPseudomap) return pseudomap;
	hasRequiredPseudomap = 1;
	var hasOwnProperty = Object.prototype.hasOwnProperty;

	pseudomap = PseudoMap;

	function PseudoMap (set) {
	  if (!(this instanceof PseudoMap)) // whyyyyyyy
	    throw new TypeError("Constructor PseudoMap requires 'new'")

	  this.clear();

	  if (set) {
	    if ((set instanceof PseudoMap) ||
	        (typeof Map === 'function' && set instanceof Map))
	      set.forEach(function (value, key) {
	        this.set(key, value);
	      }, this);
	    else if (Array.isArray(set))
	      set.forEach(function (kv) {
	        this.set(kv[0], kv[1]);
	      }, this);
	    else
	      throw new TypeError('invalid argument')
	  }
	}

	PseudoMap.prototype.forEach = function (fn, thisp) {
	  thisp = thisp || this;
	  Object.keys(this._data).forEach(function (k) {
	    if (k !== 'size')
	      fn.call(thisp, this._data[k].value, this._data[k].key);
	  }, this);
	};

	PseudoMap.prototype.has = function (k) {
	  return !!find(this._data, k)
	};

	PseudoMap.prototype.get = function (k) {
	  var res = find(this._data, k);
	  return res && res.value
	};

	PseudoMap.prototype.set = function (k, v) {
	  set(this._data, k, v);
	};

	PseudoMap.prototype.delete = function (k) {
	  var res = find(this._data, k);
	  if (res) {
	    delete this._data[res._index];
	    this._data.size--;
	  }
	};

	PseudoMap.prototype.clear = function () {
	  var data = Object.create(null);
	  data.size = 0;

	  Object.defineProperty(this, '_data', {
	    value: data,
	    enumerable: false,
	    configurable: true,
	    writable: false
	  });
	};

	Object.defineProperty(PseudoMap.prototype, 'size', {
	  get: function () {
	    return this._data.size
	  },
	  set: function (n) {},
	  enumerable: true,
	  configurable: true
	});

	PseudoMap.prototype.values =
	PseudoMap.prototype.keys =
	PseudoMap.prototype.entries = function () {
	  throw new Error('iterators are not implemented in this version')
	};

	// Either identical, or both NaN
	function same (a, b) {
	  return a === b || a !== a && b !== b
	}

	function Entry (k, v, i) {
	  this.key = k;
	  this.value = v;
	  this._index = i;
	}

	function find (data, k) {
	  for (var i = 0, s = '_' + k, key = s;
	       hasOwnProperty.call(data, key);
	       key = s + i++) {
	    if (same(data[key].key, k))
	      return data[key]
	  }
	}

	function set (data, k, v) {
	  for (var i = 0, s = '_' + k, key = s;
	       hasOwnProperty.call(data, key);
	       key = s + i++) {
	    if (same(data[key].key, k)) {
	      data[key].value = v;
	      return
	    }
	  }
	  data.size++;
	  data[key] = new Entry(k, v, key);
	}
	return pseudomap;
}

if (process.env.npm_package_name === 'pseudomap' &&
    process.env.npm_lifecycle_script === 'test')
  process.env.TEST_PSEUDOMAP = 'true';

if (typeof Map === 'function' && !process.env.TEST_PSEUDOMAP) {
  map.exports = Map;
} else {
  map.exports = requirePseudomap();
}

var yallist$1 = Yallist$1;

Yallist$1.Node = Node;
Yallist$1.create = Yallist$1;

function Yallist$1 (list) {
  var self = this;
  if (!(self instanceof Yallist$1)) {
    self = new Yallist$1();
  }

  self.tail = null;
  self.head = null;
  self.length = 0;

  if (list && typeof list.forEach === 'function') {
    list.forEach(function (item) {
      self.push(item);
    });
  } else if (arguments.length > 0) {
    for (var i = 0, l = arguments.length; i < l; i++) {
      self.push(arguments[i]);
    }
  }

  return self
}

Yallist$1.prototype.removeNode = function (node) {
  if (node.list !== this) {
    throw new Error('removing node which does not belong to this list')
  }

  var next = node.next;
  var prev = node.prev;

  if (next) {
    next.prev = prev;
  }

  if (prev) {
    prev.next = next;
  }

  if (node === this.head) {
    this.head = next;
  }
  if (node === this.tail) {
    this.tail = prev;
  }

  node.list.length--;
  node.next = null;
  node.prev = null;
  node.list = null;
};

Yallist$1.prototype.unshiftNode = function (node) {
  if (node === this.head) {
    return
  }

  if (node.list) {
    node.list.removeNode(node);
  }

  var head = this.head;
  node.list = this;
  node.next = head;
  if (head) {
    head.prev = node;
  }

  this.head = node;
  if (!this.tail) {
    this.tail = node;
  }
  this.length++;
};

Yallist$1.prototype.pushNode = function (node) {
  if (node === this.tail) {
    return
  }

  if (node.list) {
    node.list.removeNode(node);
  }

  var tail = this.tail;
  node.list = this;
  node.prev = tail;
  if (tail) {
    tail.next = node;
  }

  this.tail = node;
  if (!this.head) {
    this.head = node;
  }
  this.length++;
};

Yallist$1.prototype.push = function () {
  for (var i = 0, l = arguments.length; i < l; i++) {
    push(this, arguments[i]);
  }
  return this.length
};

Yallist$1.prototype.unshift = function () {
  for (var i = 0, l = arguments.length; i < l; i++) {
    unshift(this, arguments[i]);
  }
  return this.length
};

Yallist$1.prototype.pop = function () {
  if (!this.tail) {
    return undefined
  }

  var res = this.tail.value;
  this.tail = this.tail.prev;
  if (this.tail) {
    this.tail.next = null;
  } else {
    this.head = null;
  }
  this.length--;
  return res
};

Yallist$1.prototype.shift = function () {
  if (!this.head) {
    return undefined
  }

  var res = this.head.value;
  this.head = this.head.next;
  if (this.head) {
    this.head.prev = null;
  } else {
    this.tail = null;
  }
  this.length--;
  return res
};

Yallist$1.prototype.forEach = function (fn, thisp) {
  thisp = thisp || this;
  for (var walker = this.head, i = 0; walker !== null; i++) {
    fn.call(thisp, walker.value, i, this);
    walker = walker.next;
  }
};

Yallist$1.prototype.forEachReverse = function (fn, thisp) {
  thisp = thisp || this;
  for (var walker = this.tail, i = this.length - 1; walker !== null; i--) {
    fn.call(thisp, walker.value, i, this);
    walker = walker.prev;
  }
};

Yallist$1.prototype.get = function (n) {
  for (var i = 0, walker = this.head; walker !== null && i < n; i++) {
    // abort out of the list early if we hit a cycle
    walker = walker.next;
  }
  if (i === n && walker !== null) {
    return walker.value
  }
};

Yallist$1.prototype.getReverse = function (n) {
  for (var i = 0, walker = this.tail; walker !== null && i < n; i++) {
    // abort out of the list early if we hit a cycle
    walker = walker.prev;
  }
  if (i === n && walker !== null) {
    return walker.value
  }
};

Yallist$1.prototype.map = function (fn, thisp) {
  thisp = thisp || this;
  var res = new Yallist$1();
  for (var walker = this.head; walker !== null;) {
    res.push(fn.call(thisp, walker.value, this));
    walker = walker.next;
  }
  return res
};

Yallist$1.prototype.mapReverse = function (fn, thisp) {
  thisp = thisp || this;
  var res = new Yallist$1();
  for (var walker = this.tail; walker !== null;) {
    res.push(fn.call(thisp, walker.value, this));
    walker = walker.prev;
  }
  return res
};

Yallist$1.prototype.reduce = function (fn, initial) {
  var acc;
  var walker = this.head;
  if (arguments.length > 1) {
    acc = initial;
  } else if (this.head) {
    walker = this.head.next;
    acc = this.head.value;
  } else {
    throw new TypeError('Reduce of empty list with no initial value')
  }

  for (var i = 0; walker !== null; i++) {
    acc = fn(acc, walker.value, i);
    walker = walker.next;
  }

  return acc
};

Yallist$1.prototype.reduceReverse = function (fn, initial) {
  var acc;
  var walker = this.tail;
  if (arguments.length > 1) {
    acc = initial;
  } else if (this.tail) {
    walker = this.tail.prev;
    acc = this.tail.value;
  } else {
    throw new TypeError('Reduce of empty list with no initial value')
  }

  for (var i = this.length - 1; walker !== null; i--) {
    acc = fn(acc, walker.value, i);
    walker = walker.prev;
  }

  return acc
};

Yallist$1.prototype.toArray = function () {
  var arr = new Array(this.length);
  for (var i = 0, walker = this.head; walker !== null; i++) {
    arr[i] = walker.value;
    walker = walker.next;
  }
  return arr
};

Yallist$1.prototype.toArrayReverse = function () {
  var arr = new Array(this.length);
  for (var i = 0, walker = this.tail; walker !== null; i++) {
    arr[i] = walker.value;
    walker = walker.prev;
  }
  return arr
};

Yallist$1.prototype.slice = function (from, to) {
  to = to || this.length;
  if (to < 0) {
    to += this.length;
  }
  from = from || 0;
  if (from < 0) {
    from += this.length;
  }
  var ret = new Yallist$1();
  if (to < from || to < 0) {
    return ret
  }
  if (from < 0) {
    from = 0;
  }
  if (to > this.length) {
    to = this.length;
  }
  for (var i = 0, walker = this.head; walker !== null && i < from; i++) {
    walker = walker.next;
  }
  for (; walker !== null && i < to; i++, walker = walker.next) {
    ret.push(walker.value);
  }
  return ret
};

Yallist$1.prototype.sliceReverse = function (from, to) {
  to = to || this.length;
  if (to < 0) {
    to += this.length;
  }
  from = from || 0;
  if (from < 0) {
    from += this.length;
  }
  var ret = new Yallist$1();
  if (to < from || to < 0) {
    return ret
  }
  if (from < 0) {
    from = 0;
  }
  if (to > this.length) {
    to = this.length;
  }
  for (var i = this.length, walker = this.tail; walker !== null && i > to; i--) {
    walker = walker.prev;
  }
  for (; walker !== null && i > from; i--, walker = walker.prev) {
    ret.push(walker.value);
  }
  return ret
};

Yallist$1.prototype.reverse = function () {
  var head = this.head;
  var tail = this.tail;
  for (var walker = head; walker !== null; walker = walker.prev) {
    var p = walker.prev;
    walker.prev = walker.next;
    walker.next = p;
  }
  this.head = tail;
  this.tail = head;
  return this
};

function push (self, item) {
  self.tail = new Node(item, self.tail, null, self);
  if (!self.head) {
    self.head = self.tail;
  }
  self.length++;
}

function unshift (self, item) {
  self.head = new Node(item, null, self.head, self);
  if (!self.tail) {
    self.tail = self.head;
  }
  self.length++;
}

function Node (value, prev, next, list) {
  if (!(this instanceof Node)) {
    return new Node(value, prev, next, list)
  }

  this.list = list;
  this.value = value;

  if (prev) {
    prev.next = this;
    this.prev = prev;
  } else {
    this.prev = null;
  }

  if (next) {
    next.prev = this;
    this.next = next;
  } else {
    this.next = null;
  }
}

var lruCache$1 = LRUCache;

// This will be a proper iterable 'Map' in engines that support it,
// or a fakey-fake PseudoMap in older versions.
var Map$1 = map.exports;
var util = require$$1__default["default"];

// A linked list to keep track of recently-used-ness
var Yallist = yallist$1;

// use symbols if possible, otherwise just _props
var hasSymbol = typeof Symbol === 'function' && process.env._nodeLRUCacheForceNoSymbol !== '1';
var makeSymbol;
if (hasSymbol) {
  makeSymbol = function (key) {
    return Symbol(key)
  };
} else {
  makeSymbol = function (key) {
    return '_' + key
  };
}

var MAX = makeSymbol('max');
var LENGTH = makeSymbol('length');
var LENGTH_CALCULATOR = makeSymbol('lengthCalculator');
var ALLOW_STALE = makeSymbol('allowStale');
var MAX_AGE = makeSymbol('maxAge');
var DISPOSE = makeSymbol('dispose');
var NO_DISPOSE_ON_SET = makeSymbol('noDisposeOnSet');
var LRU_LIST = makeSymbol('lruList');
var CACHE = makeSymbol('cache');

function naiveLength () { return 1 }

// lruList is a yallist where the head is the youngest
// item, and the tail is the oldest.  the list contains the Hit
// objects as the entries.
// Each Hit object has a reference to its Yallist.Node.  This
// never changes.
//
// cache is a Map (or PseudoMap) that matches the keys to
// the Yallist.Node object.
function LRUCache (options) {
  if (!(this instanceof LRUCache)) {
    return new LRUCache(options)
  }

  if (typeof options === 'number') {
    options = { max: options };
  }

  if (!options) {
    options = {};
  }

  var max = this[MAX] = options.max;
  // Kind of weird to have a default max of Infinity, but oh well.
  if (!max ||
      !(typeof max === 'number') ||
      max <= 0) {
    this[MAX] = Infinity;
  }

  var lc = options.length || naiveLength;
  if (typeof lc !== 'function') {
    lc = naiveLength;
  }
  this[LENGTH_CALCULATOR] = lc;

  this[ALLOW_STALE] = options.stale || false;
  this[MAX_AGE] = options.maxAge || 0;
  this[DISPOSE] = options.dispose;
  this[NO_DISPOSE_ON_SET] = options.noDisposeOnSet || false;
  this.reset();
}

// resize the cache when the max changes.
Object.defineProperty(LRUCache.prototype, 'max', {
  set: function (mL) {
    if (!mL || !(typeof mL === 'number') || mL <= 0) {
      mL = Infinity;
    }
    this[MAX] = mL;
    trim(this);
  },
  get: function () {
    return this[MAX]
  },
  enumerable: true
});

Object.defineProperty(LRUCache.prototype, 'allowStale', {
  set: function (allowStale) {
    this[ALLOW_STALE] = !!allowStale;
  },
  get: function () {
    return this[ALLOW_STALE]
  },
  enumerable: true
});

Object.defineProperty(LRUCache.prototype, 'maxAge', {
  set: function (mA) {
    if (!mA || !(typeof mA === 'number') || mA < 0) {
      mA = 0;
    }
    this[MAX_AGE] = mA;
    trim(this);
  },
  get: function () {
    return this[MAX_AGE]
  },
  enumerable: true
});

// resize the cache when the lengthCalculator changes.
Object.defineProperty(LRUCache.prototype, 'lengthCalculator', {
  set: function (lC) {
    if (typeof lC !== 'function') {
      lC = naiveLength;
    }
    if (lC !== this[LENGTH_CALCULATOR]) {
      this[LENGTH_CALCULATOR] = lC;
      this[LENGTH] = 0;
      this[LRU_LIST].forEach(function (hit) {
        hit.length = this[LENGTH_CALCULATOR](hit.value, hit.key);
        this[LENGTH] += hit.length;
      }, this);
    }
    trim(this);
  },
  get: function () { return this[LENGTH_CALCULATOR] },
  enumerable: true
});

Object.defineProperty(LRUCache.prototype, 'length', {
  get: function () { return this[LENGTH] },
  enumerable: true
});

Object.defineProperty(LRUCache.prototype, 'itemCount', {
  get: function () { return this[LRU_LIST].length },
  enumerable: true
});

LRUCache.prototype.rforEach = function (fn, thisp) {
  thisp = thisp || this;
  for (var walker = this[LRU_LIST].tail; walker !== null;) {
    var prev = walker.prev;
    forEachStep(this, fn, walker, thisp);
    walker = prev;
  }
};

function forEachStep (self, fn, node, thisp) {
  var hit = node.value;
  if (isStale(self, hit)) {
    del(self, node);
    if (!self[ALLOW_STALE]) {
      hit = undefined;
    }
  }
  if (hit) {
    fn.call(thisp, hit.value, hit.key, self);
  }
}

LRUCache.prototype.forEach = function (fn, thisp) {
  thisp = thisp || this;
  for (var walker = this[LRU_LIST].head; walker !== null;) {
    var next = walker.next;
    forEachStep(this, fn, walker, thisp);
    walker = next;
  }
};

LRUCache.prototype.keys = function () {
  return this[LRU_LIST].toArray().map(function (k) {
    return k.key
  }, this)
};

LRUCache.prototype.values = function () {
  return this[LRU_LIST].toArray().map(function (k) {
    return k.value
  }, this)
};

LRUCache.prototype.reset = function () {
  if (this[DISPOSE] &&
      this[LRU_LIST] &&
      this[LRU_LIST].length) {
    this[LRU_LIST].forEach(function (hit) {
      this[DISPOSE](hit.key, hit.value);
    }, this);
  }

  this[CACHE] = new Map$1(); // hash of items by key
  this[LRU_LIST] = new Yallist(); // list of items in order of use recency
  this[LENGTH] = 0; // length of items in the list
};

LRUCache.prototype.dump = function () {
  return this[LRU_LIST].map(function (hit) {
    if (!isStale(this, hit)) {
      return {
        k: hit.key,
        v: hit.value,
        e: hit.now + (hit.maxAge || 0)
      }
    }
  }, this).toArray().filter(function (h) {
    return h
  })
};

LRUCache.prototype.dumpLru = function () {
  return this[LRU_LIST]
};

/* istanbul ignore next */
LRUCache.prototype.inspect = function (n, opts) {
  var str = 'LRUCache {';
  var extras = false;

  var as = this[ALLOW_STALE];
  if (as) {
    str += '\n  allowStale: true';
    extras = true;
  }

  var max = this[MAX];
  if (max && max !== Infinity) {
    if (extras) {
      str += ',';
    }
    str += '\n  max: ' + util.inspect(max, opts);
    extras = true;
  }

  var maxAge = this[MAX_AGE];
  if (maxAge) {
    if (extras) {
      str += ',';
    }
    str += '\n  maxAge: ' + util.inspect(maxAge, opts);
    extras = true;
  }

  var lc = this[LENGTH_CALCULATOR];
  if (lc && lc !== naiveLength) {
    if (extras) {
      str += ',';
    }
    str += '\n  length: ' + util.inspect(this[LENGTH], opts);
    extras = true;
  }

  var didFirst = false;
  this[LRU_LIST].forEach(function (item) {
    if (didFirst) {
      str += ',\n  ';
    } else {
      if (extras) {
        str += ',\n';
      }
      didFirst = true;
      str += '\n  ';
    }
    var key = util.inspect(item.key).split('\n').join('\n  ');
    var val = { value: item.value };
    if (item.maxAge !== maxAge) {
      val.maxAge = item.maxAge;
    }
    if (lc !== naiveLength) {
      val.length = item.length;
    }
    if (isStale(this, item)) {
      val.stale = true;
    }

    val = util.inspect(val, opts).split('\n').join('\n  ');
    str += key + ' => ' + val;
  });

  if (didFirst || extras) {
    str += '\n';
  }
  str += '}';

  return str
};

LRUCache.prototype.set = function (key, value, maxAge) {
  maxAge = maxAge || this[MAX_AGE];

  var now = maxAge ? Date.now() : 0;
  var len = this[LENGTH_CALCULATOR](value, key);

  if (this[CACHE].has(key)) {
    if (len > this[MAX]) {
      del(this, this[CACHE].get(key));
      return false
    }

    var node = this[CACHE].get(key);
    var item = node.value;

    // dispose of the old one before overwriting
    // split out into 2 ifs for better coverage tracking
    if (this[DISPOSE]) {
      if (!this[NO_DISPOSE_ON_SET]) {
        this[DISPOSE](key, item.value);
      }
    }

    item.now = now;
    item.maxAge = maxAge;
    item.value = value;
    this[LENGTH] += len - item.length;
    item.length = len;
    this.get(key);
    trim(this);
    return true
  }

  var hit = new Entry(key, value, len, now, maxAge);

  // oversized objects fall out of cache automatically.
  if (hit.length > this[MAX]) {
    if (this[DISPOSE]) {
      this[DISPOSE](key, value);
    }
    return false
  }

  this[LENGTH] += hit.length;
  this[LRU_LIST].unshift(hit);
  this[CACHE].set(key, this[LRU_LIST].head);
  trim(this);
  return true
};

LRUCache.prototype.has = function (key) {
  if (!this[CACHE].has(key)) return false
  var hit = this[CACHE].get(key).value;
  if (isStale(this, hit)) {
    return false
  }
  return true
};

LRUCache.prototype.get = function (key) {
  return get(this, key, true)
};

LRUCache.prototype.peek = function (key) {
  return get(this, key, false)
};

LRUCache.prototype.pop = function () {
  var node = this[LRU_LIST].tail;
  if (!node) return null
  del(this, node);
  return node.value
};

LRUCache.prototype.del = function (key) {
  del(this, this[CACHE].get(key));
};

LRUCache.prototype.load = function (arr) {
  // reset the cache
  this.reset();

  var now = Date.now();
  // A previous serialized cache has the most recent items first
  for (var l = arr.length - 1; l >= 0; l--) {
    var hit = arr[l];
    var expiresAt = hit.e || 0;
    if (expiresAt === 0) {
      // the item was created without expiration in a non aged cache
      this.set(hit.k, hit.v);
    } else {
      var maxAge = expiresAt - now;
      // dont add already expired items
      if (maxAge > 0) {
        this.set(hit.k, hit.v, maxAge);
      }
    }
  }
};

LRUCache.prototype.prune = function () {
  var self = this;
  this[CACHE].forEach(function (value, key) {
    get(self, key, false);
  });
};

function get (self, key, doUse) {
  var node = self[CACHE].get(key);
  if (node) {
    var hit = node.value;
    if (isStale(self, hit)) {
      del(self, node);
      if (!self[ALLOW_STALE]) hit = undefined;
    } else {
      if (doUse) {
        self[LRU_LIST].unshiftNode(node);
      }
    }
    if (hit) hit = hit.value;
  }
  return hit
}

function isStale (self, hit) {
  if (!hit || (!hit.maxAge && !self[MAX_AGE])) {
    return false
  }
  var stale = false;
  var diff = Date.now() - hit.now;
  if (hit.maxAge) {
    stale = diff > hit.maxAge;
  } else {
    stale = self[MAX_AGE] && (diff > self[MAX_AGE]);
  }
  return stale
}

function trim (self) {
  if (self[LENGTH] > self[MAX]) {
    for (var walker = self[LRU_LIST].tail;
      self[LENGTH] > self[MAX] && walker !== null;) {
      // We know that we're about to delete this one, and also
      // what the next least recently used key will be, so just
      // go ahead and set it now.
      var prev = walker.prev;
      del(self, walker);
      walker = prev;
    }
  }
}

function del (self, node) {
  if (node) {
    var hit = node.value;
    if (self[DISPOSE]) {
      self[DISPOSE](hit.key, hit.value);
    }
    self[LENGTH] -= hit.length;
    self[CACHE].delete(hit.key);
    self[LRU_LIST].removeNode(node);
  }
}

// classy, since V8 prefers predictable objects.
function Entry (key, value, length, now, maxAge) {
  this.key = key;
  this.value = value;
  this.length = length;
  this.now = now;
  this.maxAge = maxAge || 0;
}

var path$4 = path__default["default"];
var which$2 = which_1$1;
var LRU$1 = lruCache$1;

var commandCache = new LRU$1({ max: 50, maxAge: 30 * 1000 });  // Cache just for 30sec

function resolveCommand$4(command, noExtension) {
    var resolved;

    noExtension = !!noExtension;
    resolved = commandCache.get(command + '!' + noExtension);

    // Check if its resolved in the cache
    if (commandCache.has(command)) {
        return commandCache.get(command);
    }

    try {
        resolved = !noExtension ?
            which$2.sync(command) :
            which$2.sync(command, { pathExt: path$4.delimiter + (process.env.PATHEXT || '') });
    } catch (e) { /* empty */ }

    commandCache.set(command + '!' + noExtension, resolved);

    return resolved;
}

var resolveCommand_1$1 = resolveCommand$4;

// See: https://github.com/IndigoUnited/node-cross-spawn/pull/34#issuecomment-221623455
function hasEmptyArgumentBug$1() {
    var nodeVer;

    if (process.platform !== 'win32') {
        return false;
    }

    nodeVer = process.version.substr(1).split('.').map(function (num) {
        return parseInt(num, 10);
    });

    return (nodeVer[0] === 0 && nodeVer[1] < 12);
}

var hasEmptyArgumentBug_1 = hasEmptyArgumentBug$1();

function escapeArgument$3(arg, quote) {
    // Convert to string
    arg = '' + arg;

    // If we are not going to quote the argument,
    // escape shell metacharacters, including double and single quotes:
    if (!quote) {
        arg = arg.replace(/([()%!^<>&|;,"'\s])/g, '^$1');
    } else {
        // Sequence of backslashes followed by a double quote:
        // double up all the backslashes and escape the double quote
        arg = arg.replace(/(\\*)"/g, '$1$1\\"');

        // Sequence of backslashes followed by the end of the string
        // (which will become a double quote later):
        // double up all the backslashes
        arg = arg.replace(/(\\*)$/, '$1$1');

        // All other backslashes occur literally

        // Quote the whole thing:
        arg = '"' + arg + '"';
    }

    return arg;
}

var escapeArgument_1 = escapeArgument$3;

var escapeArgument$2 = escapeArgument_1;

function escapeCommand$2(command) {
    // Do not escape if this command is not dangerous..
    // We do this so that commands like "echo" or "ifconfig" work
    // Quoting them, will make them unaccessible
    return /^[a-z0-9_-]+$/i.test(command) ? command : escapeArgument$2(command, true);
}

var escapeCommand_1 = escapeCommand$2;

var shebangRegex$3 = /^#!.*/;

var shebangRegex$2 = shebangRegex$3;

var shebangCommand$3 = function (str) {
	var match = str.match(shebangRegex$2);

	if (!match) {
		return null;
	}

	var arr = match[0].replace(/#! ?/, '').split(' ');
	var bin = arr[0].split('/').pop();
	var arg = arr[1];

	return (bin === 'env' ?
		arg :
		bin + (arg ? ' ' + arg : '')
	);
};

var fs$2 = require$$0__default$2["default"];
var LRU = lruCache$1;
var shebangCommand$2 = shebangCommand$3;

var shebangCache = new LRU({ max: 50, maxAge: 30 * 1000 });  // Cache just for 30sec

function readShebang$3(command) {
    var buffer;
    var fd;
    var shebang;

    // Check if it is in the cache first
    if (shebangCache.has(command)) {
        return shebangCache.get(command);
    }

    // Read the first 150 bytes from the file
    buffer = new Buffer(150);

    try {
        fd = fs$2.openSync(command, 'r');
        fs$2.readSync(fd, buffer, 0, 150, 0);
        fs$2.closeSync(fd);
    } catch (e) { /* empty */ }

    // Attempt to extract shebang (null is returned if not a shebang)
    shebang = shebangCommand$2(buffer.toString());

    // Store the shebang in the cache
    shebangCache.set(command, shebang);

    return shebang;
}

var readShebang_1$1 = readShebang$3;

var resolveCommand$3 = resolveCommand_1$1;
var hasEmptyArgumentBug = hasEmptyArgumentBug_1;
var escapeArgument$1 = escapeArgument_1;
var escapeCommand$1 = escapeCommand_1;
var readShebang$2 = readShebang_1$1;

var isWin$4 = process.platform === 'win32';
var skipShellRegExp = /\.(?:com|exe)$/i;

// Supported in Node >= 6 and >= 4.8
var supportsShellOption = parseInt(process.version.substr(1).split('.')[0], 10) >= 6 ||
 parseInt(process.version.substr(1).split('.')[0], 10) === 4 && parseInt(process.version.substr(1).split('.')[1], 10) >= 8;

function parseNonShell$1(parsed) {
    var shebang;
    var needsShell;
    var applyQuotes;

    if (!isWin$4) {
        return parsed;
    }

    // Detect & add support for shebangs
    parsed.file = resolveCommand$3(parsed.command);
    parsed.file = parsed.file || resolveCommand$3(parsed.command, true);
    shebang = parsed.file && readShebang$2(parsed.file);

    if (shebang) {
        parsed.args.unshift(parsed.file);
        parsed.command = shebang;
        needsShell = hasEmptyArgumentBug || !skipShellRegExp.test(resolveCommand$3(shebang) || resolveCommand$3(shebang, true));
    } else {
        needsShell = hasEmptyArgumentBug || !skipShellRegExp.test(parsed.file);
    }

    // If a shell is required, use cmd.exe and take care of escaping everything correctly
    if (needsShell) {
        // Escape command & arguments
        applyQuotes = (parsed.command !== 'echo');  // Do not quote arguments for the special "echo" command
        parsed.command = escapeCommand$1(parsed.command);
        parsed.args = parsed.args.map(function (arg) {
            return escapeArgument$1(arg, applyQuotes);
        });

        // Make use of cmd.exe
        parsed.args = ['/d', '/s', '/c', '"' + parsed.command + (parsed.args.length ? ' ' + parsed.args.join(' ') : '') + '"'];
        parsed.command = process.env.comspec || 'cmd.exe';
        parsed.options.windowsVerbatimArguments = true;  // Tell node's spawn that the arguments are already escaped
    }

    return parsed;
}

function parseShell(parsed) {
    var shellCommand;

    // If node supports the shell option, there's no need to mimic its behavior
    if (supportsShellOption) {
        return parsed;
    }

    // Mimic node shell option, see: https://github.com/nodejs/node/blob/b9f6a2dc059a1062776133f3d4fd848c4da7d150/lib/child_process.js#L335
    shellCommand = [parsed.command].concat(parsed.args).join(' ');

    if (isWin$4) {
        parsed.command = typeof parsed.options.shell === 'string' ? parsed.options.shell : process.env.comspec || 'cmd.exe';
        parsed.args = ['/d', '/s', '/c', '"' + shellCommand + '"'];
        parsed.options.windowsVerbatimArguments = true;  // Tell node's spawn that the arguments are already escaped
    } else {
        if (typeof parsed.options.shell === 'string') {
            parsed.command = parsed.options.shell;
        } else if (process.platform === 'android') {
            parsed.command = '/system/bin/sh';
        } else {
            parsed.command = '/bin/sh';
        }

        parsed.args = ['-c', shellCommand];
    }

    return parsed;
}

// ------------------------------------------------

function parse$a(command, args, options) {
    var parsed;

    // Normalize arguments, similar to nodejs
    if (args && !Array.isArray(args)) {
        options = args;
        args = null;
    }

    args = args ? args.slice(0) : [];  // Clone array to avoid changing the original
    options = options || {};

    // Build our parsed object
    parsed = {
        command: command,
        args: args,
        options: options,
        file: undefined,
        original: command,
    };

    // Delegate further parsing to shell or non-shell
    return options.shell ? parseShell(parsed) : parseNonShell$1(parsed);
}

var parse_1$2 = parse$a;

var enoent$3 = {};

var isWin$3 = process.platform === 'win32';
var resolveCommand$2 = resolveCommand_1$1;

var isNode10 = process.version.indexOf('v0.10.') === 0;

function notFoundError$1(command, syscall) {
    var err;

    err = new Error(syscall + ' ' + command + ' ENOENT');
    err.code = err.errno = 'ENOENT';
    err.syscall = syscall + ' ' + command;

    return err;
}

function hookChildProcess$1(cp, parsed) {
    var originalEmit;

    if (!isWin$3) {
        return;
    }

    originalEmit = cp.emit;
    cp.emit = function (name, arg1) {
        var err;

        // If emitting "exit" event and exit code is 1, we need to check if
        // the command exists and emit an "error" instead
        // See: https://github.com/IndigoUnited/node-cross-spawn/issues/16
        if (name === 'exit') {
            err = verifyENOENT$1(arg1, parsed);

            if (err) {
                return originalEmit.call(cp, 'error', err);
            }
        }

        return originalEmit.apply(cp, arguments);
    };
}

function verifyENOENT$1(status, parsed) {
    if (isWin$3 && status === 1 && !parsed.file) {
        return notFoundError$1(parsed.original, 'spawn');
    }

    return null;
}

function verifyENOENTSync$1(status, parsed) {
    if (isWin$3 && status === 1 && !parsed.file) {
        return notFoundError$1(parsed.original, 'spawnSync');
    }

    // If we are in node 10, then we are using spawn-sync; if it exited
    // with -1 it probably means that the command does not exist
    if (isNode10 && status === -1) {
        parsed.file = isWin$3 ? parsed.file : resolveCommand$2(parsed.original);

        if (!parsed.file) {
            return notFoundError$1(parsed.original, 'spawnSync');
        }
    }

    return null;
}

enoent$3.hookChildProcess = hookChildProcess$1;
enoent$3.verifyENOENT = verifyENOENT$1;
enoent$3.verifyENOENTSync = verifyENOENTSync$1;
enoent$3.notFoundError = notFoundError$1;

var cp$1 = require$$0__default$9["default"];
var parse$9 = parse_1$2;
var enoent$2 = enoent$3;

var cpSpawnSync = cp$1.spawnSync;

function spawn$1(command, args, options) {
    var parsed;
    var spawned;

    // Parse the arguments
    parsed = parse$9(command, args, options);

    // Spawn the child process
    spawned = cp$1.spawn(parsed.command, parsed.args, parsed.options);

    // Hook into child process "exit" event to emit an error if the command
    // does not exists, see: https://github.com/IndigoUnited/node-cross-spawn/issues/16
    enoent$2.hookChildProcess(spawned, parsed);

    return spawned;
}

function spawnSync$1(command, args, options) {
    var parsed;
    var result;

    if (!cpSpawnSync) {
        try {
            cpSpawnSync = require('spawn-sync');  // eslint-disable-line global-require
        } catch (ex) {
            throw new Error(
                'In order to use spawnSync on node 0.10 or older, you must ' +
                'install spawn-sync:\n\n' +
                '  npm install spawn-sync --save'
            );
        }
    }

    // Parse the arguments
    parsed = parse$9(command, args, options);

    // Spawn the child process
    result = cpSpawnSync(parsed.command, parsed.args, parsed.options);

    // Analyze if the command does not exists, see: https://github.com/IndigoUnited/node-cross-spawn/issues/16
    result.error = result.error || enoent$2.verifyENOENTSync(result.status, parsed);

    return result;
}

crossSpawn$2.exports = spawn$1;
crossSpawn$2.exports.spawn = spawn$1;
crossSpawn$2.exports.sync = spawnSync$1;

crossSpawn$2.exports._parse = parse$9;
crossSpawn$2.exports._enoent = enoent$2;

var stripEof = function (x) {
	var lf = typeof x === 'string' ? '\n' : '\n'.charCodeAt();
	var cr = typeof x === 'string' ? '\r' : '\r'.charCodeAt();

	if (x[x.length - 1] === lf) {
		x = x.slice(0, x.length - 1);
	}

	if (x[x.length - 1] === cr) {
		x = x.slice(0, x.length - 1);
	}

	return x;
};

var npmRunPath$2 = {exports: {}};

var pathKey$2 = opts => {
	opts = opts || {};

	const env = opts.env || process.env;
	const platform = opts.platform || process.platform;

	if (platform !== 'win32') {
		return 'PATH';
	}

	return Object.keys(env).find(x => x.toUpperCase() === 'PATH') || 'Path';
};

(function (module) {
	const path = path__default["default"];
	const pathKey = pathKey$2;

	module.exports = opts => {
		opts = Object.assign({
			cwd: process.cwd(),
			path: process.env[pathKey()]
		}, opts);

		let prev;
		let pth = path.resolve(opts.cwd);
		const ret = [];

		while (prev !== pth) {
			ret.push(path.join(pth, 'node_modules/.bin'));
			prev = pth;
			pth = path.resolve(pth, '..');
		}

		// ensure the running `node` binary is used
		ret.push(path.dirname(process.execPath));

		return ret.concat(opts.path).join(path.delimiter);
	};

	module.exports.env = opts => {
		opts = Object.assign({
			env: process.env
		}, opts);

		const env = Object.assign({}, opts.env);
		const path = pathKey({env});

		opts.path = env[path];
		env[path] = module.exports(opts);

		return env;
	};
} (npmRunPath$2));

var isStream$3 = {exports: {}};

var isStream$2 = isStream$3.exports = function (stream) {
	return stream !== null && typeof stream === 'object' && typeof stream.pipe === 'function';
};

isStream$2.writable = function (stream) {
	return isStream$2(stream) && stream.writable !== false && typeof stream._write === 'function' && typeof stream._writableState === 'object';
};

isStream$2.readable = function (stream) {
	return isStream$2(stream) && stream.readable !== false && typeof stream._read === 'function' && typeof stream._readableState === 'object';
};

isStream$2.duplex = function (stream) {
	return isStream$2.writable(stream) && isStream$2.readable(stream);
};

isStream$2.transform = function (stream) {
	return isStream$2.duplex(stream) && typeof stream._transform === 'function' && typeof stream._transformState === 'object';
};

var getStream$4 = {exports: {}};

const PassThrough$1 = require$$0__default$3["default"].PassThrough;

var bufferStream$3 = opts => {
	opts = Object.assign({}, opts);

	const array = opts.array;
	let encoding = opts.encoding;
	const buffer = encoding === 'buffer';
	let objectMode = false;

	if (array) {
		objectMode = !(encoding || buffer);
	} else {
		encoding = encoding || 'utf8';
	}

	if (buffer) {
		encoding = null;
	}

	let len = 0;
	const ret = [];
	const stream = new PassThrough$1({objectMode});

	if (encoding) {
		stream.setEncoding(encoding);
	}

	stream.on('data', chunk => {
		ret.push(chunk);

		if (objectMode) {
			len = ret.length;
		} else {
			len += chunk.length;
		}
	});

	stream.getBufferedValue = () => {
		if (array) {
			return ret;
		}

		return buffer ? Buffer.concat(ret, len) : ret.join('');
	};

	stream.getBufferedLength = () => len;

	return stream;
};

const bufferStream$2 = bufferStream$3;

function getStream$3(inputStream, opts) {
	if (!inputStream) {
		return Promise.reject(new Error('Expected a stream'));
	}

	opts = Object.assign({maxBuffer: Infinity}, opts);

	const maxBuffer = opts.maxBuffer;
	let stream;
	let clean;

	const p = new Promise((resolve, reject) => {
		const error = err => {
			if (err) { // null check
				err.bufferedData = stream.getBufferedValue();
			}

			reject(err);
		};

		stream = bufferStream$2(opts);
		inputStream.once('error', error);
		inputStream.pipe(stream);

		stream.on('data', () => {
			if (stream.getBufferedLength() > maxBuffer) {
				reject(new Error('maxBuffer exceeded'));
			}
		});
		stream.once('error', error);
		stream.on('end', resolve);

		clean = () => {
			// some streams doesn't implement the `stream.Readable` interface correctly
			if (inputStream.unpipe) {
				inputStream.unpipe(stream);
			}
		};
	});

	p.then(clean, clean);

	return p.then(() => stream.getBufferedValue());
}

getStream$4.exports = getStream$3;
getStream$4.exports.buffer = (stream, opts) => getStream$3(stream, Object.assign({}, opts, {encoding: 'buffer'}));
getStream$4.exports.array = (stream, opts) => getStream$3(stream, Object.assign({}, opts, {array: true}));

var pFinally = (promise, onFinally) => {
	onFinally = onFinally || (() => {});

	return promise.then(
		val => new Promise(resolve => {
			resolve(onFinally());
		}).then(() => val),
		err => new Promise(resolve => {
			resolve(onFinally());
		}).then(() => {
			throw err;
		})
	);
};

var signalExit = {exports: {}};

var signals$2 = {exports: {}};

var hasRequiredSignals;

function requireSignals () {
	if (hasRequiredSignals) return signals$2.exports;
	hasRequiredSignals = 1;
	(function (module) {
		// This is not the set of all possible signals.
		//
		// It IS, however, the set of all signals that trigger
		// an exit on either Linux or BSD systems.  Linux is a
		// superset of the signal names supported on BSD, and
		// the unknown signals just fail to register, so we can
		// catch that easily enough.
		//
		// Don't bother with SIGKILL.  It's uncatchable, which
		// means that we can't fire any callbacks anyway.
		//
		// If a user does happen to register a handler on a non-
		// fatal signal like SIGWINCH or something, and then
		// exit, it'll end up firing `process.emit('exit')`, so
		// the handler will be fired anyway.
		//
		// SIGBUS, SIGFPE, SIGSEGV and SIGILL, when not raised
		// artificially, inherently leave the process in a
		// state from which it is not safe to try and enter JS
		// listeners.
		module.exports = [
		  'SIGABRT',
		  'SIGALRM',
		  'SIGHUP',
		  'SIGINT',
		  'SIGTERM'
		];

		if (process.platform !== 'win32') {
		  module.exports.push(
		    'SIGVTALRM',
		    'SIGXCPU',
		    'SIGXFSZ',
		    'SIGUSR2',
		    'SIGTRAP',
		    'SIGSYS',
		    'SIGQUIT',
		    'SIGIOT'
		    // should detect profiler and enable/disable accordingly.
		    // see #21
		    // 'SIGPROF'
		  );
		}

		if (process.platform === 'linux') {
		  module.exports.push(
		    'SIGIO',
		    'SIGPOLL',
		    'SIGPWR',
		    'SIGSTKFLT',
		    'SIGUNUSED'
		  );
		}
} (signals$2));
	return signals$2.exports;
}

// Note: since nyc uses this module to output coverage, any lines
// that are in the direct sync flow of nyc's outputCoverage are
// ignored, since we can never get coverage for them.
// grab a reference to node's real process object right away
var process$1 = commonjsGlobal.process;

const processOk = function (process) {
  return process &&
    typeof process === 'object' &&
    typeof process.removeListener === 'function' &&
    typeof process.emit === 'function' &&
    typeof process.reallyExit === 'function' &&
    typeof process.listeners === 'function' &&
    typeof process.kill === 'function' &&
    typeof process.pid === 'number' &&
    typeof process.on === 'function'
};

// some kind of non-node environment, just no-op
/* istanbul ignore if */
if (!processOk(process$1)) {
  signalExit.exports = function () {
    return function () {}
  };
} else {
  var assert = require$$0__default$a["default"];
  var signals$1 = requireSignals();
  var isWin$2 = /^win/i.test(process$1.platform);

  var EE = require$$0__default$5["default"];
  /* istanbul ignore if */
  if (typeof EE !== 'function') {
    EE = EE.EventEmitter;
  }

  var emitter;
  if (process$1.__signal_exit_emitter__) {
    emitter = process$1.__signal_exit_emitter__;
  } else {
    emitter = process$1.__signal_exit_emitter__ = new EE();
    emitter.count = 0;
    emitter.emitted = {};
  }

  // Because this emitter is a global, we have to check to see if a
  // previous version of this library failed to enable infinite listeners.
  // I know what you're about to say.  But literally everything about
  // signal-exit is a compromise with evil.  Get used to it.
  if (!emitter.infinite) {
    emitter.setMaxListeners(Infinity);
    emitter.infinite = true;
  }

  signalExit.exports = function (cb, opts) {
    /* istanbul ignore if */
    if (!processOk(commonjsGlobal.process)) {
      return function () {}
    }
    assert.equal(typeof cb, 'function', 'a callback must be provided for exit handler');

    if (loaded === false) {
      load();
    }

    var ev = 'exit';
    if (opts && opts.alwaysLast) {
      ev = 'afterexit';
    }

    var remove = function () {
      emitter.removeListener(ev, cb);
      if (emitter.listeners('exit').length === 0 &&
          emitter.listeners('afterexit').length === 0) {
        unload();
      }
    };
    emitter.on(ev, cb);

    return remove
  };

  var unload = function unload () {
    if (!loaded || !processOk(commonjsGlobal.process)) {
      return
    }
    loaded = false;

    signals$1.forEach(function (sig) {
      try {
        process$1.removeListener(sig, sigListeners[sig]);
      } catch (er) {}
    });
    process$1.emit = originalProcessEmit;
    process$1.reallyExit = originalProcessReallyExit;
    emitter.count -= 1;
  };
  signalExit.exports.unload = unload;

  var emit = function emit (event, code, signal) {
    /* istanbul ignore if */
    if (emitter.emitted[event]) {
      return
    }
    emitter.emitted[event] = true;
    emitter.emit(event, code, signal);
  };

  // { <signal>: <listener fn>, ... }
  var sigListeners = {};
  signals$1.forEach(function (sig) {
    sigListeners[sig] = function listener () {
      /* istanbul ignore if */
      if (!processOk(commonjsGlobal.process)) {
        return
      }
      // If there are no other listeners, an exit is coming!
      // Simplest way: remove us and then re-send the signal.
      // We know that this will kill the process, so we can
      // safely emit now.
      var listeners = process$1.listeners(sig);
      if (listeners.length === emitter.count) {
        unload();
        emit('exit', null, sig);
        /* istanbul ignore next */
        emit('afterexit', null, sig);
        /* istanbul ignore next */
        if (isWin$2 && sig === 'SIGHUP') {
          // "SIGHUP" throws an `ENOSYS` error on Windows,
          // so use a supported signal instead
          sig = 'SIGINT';
        }
        /* istanbul ignore next */
        process$1.kill(process$1.pid, sig);
      }
    };
  });

  signalExit.exports.signals = function () {
    return signals$1
  };

  var loaded = false;

  var load = function load () {
    if (loaded || !processOk(commonjsGlobal.process)) {
      return
    }
    loaded = true;

    // This is the number of onSignalExit's that are in play.
    // It's important so that we can count the correct number of
    // listeners on signals, and don't wait for the other one to
    // handle it instead of us.
    emitter.count += 1;

    signals$1 = signals$1.filter(function (sig) {
      try {
        process$1.on(sig, sigListeners[sig]);
        return true
      } catch (er) {
        return false
      }
    });

    process$1.emit = processEmit;
    process$1.reallyExit = processReallyExit;
  };
  signalExit.exports.load = load;

  var originalProcessReallyExit = process$1.reallyExit;
  var processReallyExit = function processReallyExit (code) {
    /* istanbul ignore if */
    if (!processOk(commonjsGlobal.process)) {
      return
    }
    process$1.exitCode = code || /* istanbul ignore next */ 0;
    emit('exit', process$1.exitCode, null);
    /* istanbul ignore next */
    emit('afterexit', process$1.exitCode, null);
    /* istanbul ignore next */
    originalProcessReallyExit.call(process$1, process$1.exitCode);
  };

  var originalProcessEmit = process$1.emit;
  var processEmit = function processEmit (ev, arg) {
    if (ev === 'exit' && processOk(commonjsGlobal.process)) {
      /* istanbul ignore else */
      if (arg !== undefined) {
        process$1.exitCode = arg;
      }
      var ret = originalProcessEmit.apply(this, arguments);
      /* istanbul ignore next */
      emit('exit', process$1.exitCode, null);
      /* istanbul ignore next */
      emit('afterexit', process$1.exitCode, null);
      /* istanbul ignore next */
      return ret
    } else {
      return originalProcessEmit.apply(this, arguments)
    }
  };
}

var errname$1 = {exports: {}};

// The Node team wants to deprecate `process.bind(...)`.
//   https://github.com/nodejs/node/pull/2768
//
// However, we need the 'uv' binding for errname support.
// This is a defensive wrapper around it so `execa` will not fail entirely if it stops working someday.
//
// If this ever stops working. See: https://github.com/sindresorhus/execa/issues/31#issuecomment-215939939 for another possible solution.
let uv;

try {
	uv = process.binding('uv');

	if (typeof uv.errname !== 'function') {
		throw new TypeError('uv.errname is not a function');
	}
} catch (err) {
	console.error('execa/lib/errname: unable to establish process.binding(\'uv\')', err);
	uv = null;
}

function errname(uv, code) {
	if (uv) {
		return uv.errname(code);
	}

	if (!(code < 0)) {
		throw new Error('err >= 0');
	}

	return `Unknown system error ${code}`;
}

errname$1.exports = code => errname(uv, code);

// Used for testing the fallback behavior
errname$1.exports.__test__ = errname;

const alias = ['stdin', 'stdout', 'stderr'];

const hasAlias$1 = opts => alias.some(x => Boolean(opts[x]));

var stdio$1 = opts => {
	if (!opts) {
		return null;
	}

	if (opts.stdio && hasAlias$1(opts)) {
		throw new Error(`It's not possible to provide \`stdio\` in combination with one of ${alias.map(x => `\`${x}\``).join(', ')}`);
	}

	if (typeof opts.stdio === 'string') {
		return opts.stdio;
	}

	const stdio = opts.stdio || [];

	if (!Array.isArray(stdio)) {
		throw new TypeError(`Expected \`stdio\` to be of type \`string\` or \`Array\`, got \`${typeof stdio}\``);
	}

	const result = [];
	const len = Math.max(stdio.length, alias.length);

	for (let i = 0; i < len; i++) {
		let value = null;

		if (stdio[i] !== undefined) {
			value = stdio[i];
		} else if (opts[alias[i]] !== undefined) {
			value = opts[alias[i]];
		}

		result[i] = value;
	}

	return result;
};

(function (module) {
	const childProcess = require$$0__default$9["default"];
	const util = require$$1__default["default"];
	const crossSpawn = crossSpawn$2.exports;
	const stripEof$1 = stripEof;
	const npmRunPath = npmRunPath$2.exports;
	const isStream = isStream$3.exports;
	const _getStream = getStream$4.exports;
	const pFinally$1 = pFinally;
	const onExit = signalExit.exports;
	const errname = errname$1.exports;
	const stdio = stdio$1;

	const TEN_MEGABYTES = 1000 * 1000 * 10;

	function handleArgs(cmd, args, opts) {
		let parsed;

		if (opts && opts.env && opts.extendEnv !== false) {
			opts.env = Object.assign({}, process.env, opts.env);
		}

		if (opts && opts.__winShell === true) {
			delete opts.__winShell;
			parsed = {
				command: cmd,
				args,
				options: opts,
				file: cmd,
				original: cmd
			};
		} else {
			parsed = crossSpawn._parse(cmd, args, opts);
		}

		opts = Object.assign({
			maxBuffer: TEN_MEGABYTES,
			stripEof: true,
			preferLocal: true,
			localDir: parsed.options.cwd || process.cwd(),
			encoding: 'utf8',
			reject: true,
			cleanup: true
		}, parsed.options);

		opts.stdio = stdio(opts);

		if (opts.preferLocal) {
			opts.env = npmRunPath.env(Object.assign({}, opts, {cwd: opts.localDir}));
		}

		return {
			cmd: parsed.command,
			args: parsed.args,
			opts,
			parsed
		};
	}

	function handleInput(spawned, opts) {
		const input = opts.input;

		if (input === null || input === undefined) {
			return;
		}

		if (isStream(input)) {
			input.pipe(spawned.stdin);
		} else {
			spawned.stdin.end(input);
		}
	}

	function handleOutput(opts, val) {
		if (val && opts.stripEof) {
			val = stripEof$1(val);
		}

		return val;
	}

	function handleShell(fn, cmd, opts) {
		let file = '/bin/sh';
		let args = ['-c', cmd];

		opts = Object.assign({}, opts);

		if (process.platform === 'win32') {
			opts.__winShell = true;
			file = process.env.comspec || 'cmd.exe';
			args = ['/s', '/c', `"${cmd}"`];
			opts.windowsVerbatimArguments = true;
		}

		if (opts.shell) {
			file = opts.shell;
			delete opts.shell;
		}

		return fn(file, args, opts);
	}

	function getStream(process, stream, encoding, maxBuffer) {
		if (!process[stream]) {
			return null;
		}

		let ret;

		if (encoding) {
			ret = _getStream(process[stream], {
				encoding,
				maxBuffer
			});
		} else {
			ret = _getStream.buffer(process[stream], {maxBuffer});
		}

		return ret.catch(err => {
			err.stream = stream;
			err.message = `${stream} ${err.message}`;
			throw err;
		});
	}

	module.exports = (cmd, args, opts) => {
		let joinedCmd = cmd;

		if (Array.isArray(args) && args.length > 0) {
			joinedCmd += ' ' + args.join(' ');
		}

		const parsed = handleArgs(cmd, args, opts);
		const encoding = parsed.opts.encoding;
		const maxBuffer = parsed.opts.maxBuffer;

		let spawned;
		try {
			spawned = childProcess.spawn(parsed.cmd, parsed.args, parsed.opts);
		} catch (err) {
			return Promise.reject(err);
		}

		let removeExitHandler;
		if (parsed.opts.cleanup) {
			removeExitHandler = onExit(() => {
				spawned.kill();
			});
		}

		let timeoutId = null;
		let timedOut = false;

		const cleanupTimeout = () => {
			if (timeoutId) {
				clearTimeout(timeoutId);
				timeoutId = null;
			}
		};

		if (parsed.opts.timeout > 0) {
			timeoutId = setTimeout(() => {
				timeoutId = null;
				timedOut = true;
				spawned.kill(parsed.opts.killSignal);
			}, parsed.opts.timeout);
		}

		const processDone = new Promise(resolve => {
			spawned.on('exit', (code, signal) => {
				cleanupTimeout();
				resolve({code, signal});
			});

			spawned.on('error', err => {
				cleanupTimeout();
				resolve({err});
			});

			if (spawned.stdin) {
				spawned.stdin.on('error', err => {
					cleanupTimeout();
					resolve({err});
				});
			}
		});

		function destroy() {
			if (spawned.stdout) {
				spawned.stdout.destroy();
			}

			if (spawned.stderr) {
				spawned.stderr.destroy();
			}
		}

		const promise = pFinally$1(Promise.all([
			processDone,
			getStream(spawned, 'stdout', encoding, maxBuffer),
			getStream(spawned, 'stderr', encoding, maxBuffer)
		]).then(arr => {
			const result = arr[0];
			const stdout = arr[1];
			const stderr = arr[2];

			let err = result.err;
			const code = result.code;
			const signal = result.signal;

			if (removeExitHandler) {
				removeExitHandler();
			}

			if (err || code !== 0 || signal !== null) {
				if (!err) {
					let output = '';

					if (Array.isArray(parsed.opts.stdio)) {
						if (parsed.opts.stdio[2] !== 'inherit') {
							output += output.length > 0 ? stderr : `\n${stderr}`;
						}

						if (parsed.opts.stdio[1] !== 'inherit') {
							output += `\n${stdout}`;
						}
					} else if (parsed.opts.stdio !== 'inherit') {
						output = `\n${stderr}${stdout}`;
					}

					err = new Error(`Command failed: ${joinedCmd}${output}`);
					err.code = code < 0 ? errname(code) : code;
				}

				// TODO: missing some timeout logic for killed
				// https://github.com/nodejs/node/blob/master/lib/child_process.js#L203
				// err.killed = spawned.killed || killed;
				err.killed = err.killed || spawned.killed;

				err.stdout = stdout;
				err.stderr = stderr;
				err.failed = true;
				err.signal = signal || null;
				err.cmd = joinedCmd;
				err.timedOut = timedOut;

				if (!parsed.opts.reject) {
					return err;
				}

				throw err;
			}

			return {
				stdout: handleOutput(parsed.opts, stdout),
				stderr: handleOutput(parsed.opts, stderr),
				code: 0,
				failed: false,
				killed: false,
				signal: null,
				cmd: joinedCmd,
				timedOut: false
			};
		}), destroy);

		crossSpawn._enoent.hookChildProcess(spawned, parsed.parsed);

		handleInput(spawned, parsed.opts);

		spawned.then = promise.then.bind(promise);
		spawned.catch = promise.catch.bind(promise);

		return spawned;
	};

	module.exports.stdout = function () {
		// TODO: set `stderr: 'ignore'` when that option is implemented
		return module.exports.apply(null, arguments).then(x => x.stdout);
	};

	module.exports.stderr = function () {
		// TODO: set `stdout: 'ignore'` when that option is implemented
		return module.exports.apply(null, arguments).then(x => x.stderr);
	};

	module.exports.shell = (cmd, opts) => handleShell(module.exports, cmd, opts);

	module.exports.sync = (cmd, args, opts) => {
		const parsed = handleArgs(cmd, args, opts);

		if (isStream(parsed.opts.input)) {
			throw new TypeError('The `input` option cannot be a stream in sync mode');
		}

		const result = childProcess.spawnSync(parsed.cmd, parsed.args, parsed.opts);

		if (result.error || result.status !== 0) {
			throw (result.error || new Error(result.stderr === '' ? result.stdout : result.stderr));
		}

		result.stdout = handleOutput(parsed.opts, result.stdout);
		result.stderr = handleOutput(parsed.opts, result.stderr);

		return result;
	};

	module.exports.shellSync = (cmd, opts) => handleShell(module.exports.sync, cmd, opts);

	module.exports.spawn = util.deprecate(module.exports, 'execa.spawn() is deprecated. Use execa() instead.');
} (execa$3));

var executable$1 = {exports: {}};

var pify$2 = {exports: {}};

var processFn = function (fn, P, opts) {
	return function () {
		var that = this;
		var args = new Array(arguments.length);

		for (var i = 0; i < arguments.length; i++) {
			args[i] = arguments[i];
		}

		return new P(function (resolve, reject) {
			args.push(function (err, result) {
				if (err) {
					reject(err);
				} else if (opts.multiArgs) {
					var results = new Array(arguments.length - 1);

					for (var i = 1; i < arguments.length; i++) {
						results[i - 1] = arguments[i];
					}

					resolve(results);
				} else {
					resolve(result);
				}
			});

			fn.apply(that, args);
		});
	};
};

var pify$1 = pify$2.exports = function (obj, P, opts) {
	if (typeof P !== 'function') {
		opts = P;
		P = Promise;
	}

	opts = opts || {};
	opts.exclude = opts.exclude || [/.+Sync$/];

	var filter = function (key) {
		var match = function (pattern) {
			return typeof pattern === 'string' ? key === pattern : pattern.test(key);
		};

		return opts.include ? opts.include.some(match) : !opts.exclude.some(match);
	};

	var ret = typeof obj === 'function' ? function () {
		if (opts.excludeMain) {
			return obj.apply(this, arguments);
		}

		return processFn(obj, P, opts).apply(this, arguments);
	} : {};

	return Object.keys(obj).reduce(function (ret, key) {
		var x = obj[key];

		ret[key] = typeof x === 'function' && filter(key) ? processFn(x, P, opts) : x;

		return ret;
	}, ret);
};

pify$1.all = pify$1;

const fs$1 = require$$0__default$2["default"];
const pify = pify$2.exports;

const isExe = (mode, gid, uid) => {
	if (process.platform === 'win32') {
		return true;
	}

	const isGroup = gid ? process.getgid && gid === process.getgid() : true;
	const isUser = uid ? process.getuid && uid === process.getuid() : true;

	return Boolean((mode & 0o0001) ||
		((mode & 0o0010) && isGroup) ||
		((mode & 0o0100) && isUser));
};

executable$1.exports = name => {
	if (typeof name !== 'string') {
		return Promise.reject(new TypeError('Expected a string'));
	}

	return pify(fs$1.stat)(name).then(stats => stats && stats.isFile() && isExe(stats.mode, stats.gid, stats.uid));
};

executable$1.exports.sync = name => {
	if (typeof name !== 'string') {
		throw new TypeError('Expected a string');
	}

	const stats = fs$1.statSync(name);

	return stats && stats.isFile() && isExe(stats.mode, stats.gid, stats.uid);
};

executable$1.exports.checkMode = isExe;

const execa$2 = execa$3.exports;
const executable = executable$1.exports;

binCheck.exports = (bin, args) => {
	if (!Array.isArray(args)) {
		args = ['--help'];
	}

	return executable(bin)
		.then(works => {
			if (!works) {
				throw new Error(`Couldn't execute the \`${bin}\` binary. Make sure it has the right permissions.`);
			}

			return execa$2(bin, args);
		})
		.then(res => res.code === 0);
};

binCheck.exports.sync = (bin, args) => {
	if (!Array.isArray(args)) {
		args = ['--help'];
	}

	if (!executable.sync(bin)) {
		throw new Error(`Couldn't execute the \`${bin}\` binary. Make sure it has the right permissions.`);
	}

	return execa$2.sync(bin, args).status === 0;
};

var re$3 = {exports: {}};

// Note: this is the semver.org version of the spec that it implements
// Not necessarily the package version of this code.
const SEMVER_SPEC_VERSION = '2.0.0';

const MAX_LENGTH$2 = 256;
const MAX_SAFE_INTEGER$1 = Number.MAX_SAFE_INTEGER ||
  /* istanbul ignore next */ 9007199254740991;

// Max safe segment length for coercion.
const MAX_SAFE_COMPONENT_LENGTH = 16;

var constants = {
  SEMVER_SPEC_VERSION,
  MAX_LENGTH: MAX_LENGTH$2,
  MAX_SAFE_INTEGER: MAX_SAFE_INTEGER$1,
  MAX_SAFE_COMPONENT_LENGTH
};

const debug$1 = (
  typeof process === 'object' &&
  process.env &&
  process.env.NODE_DEBUG &&
  /\bsemver\b/i.test(process.env.NODE_DEBUG)
) ? (...args) => console.error('SEMVER', ...args)
  : () => {};

var debug_1 = debug$1;

(function (module, exports) {
	const { MAX_SAFE_COMPONENT_LENGTH } = constants;
	const debug = debug_1;
	exports = module.exports = {};

	// The actual regexps go on exports.re
	const re = exports.re = [];
	const src = exports.src = [];
	const t = exports.t = {};
	let R = 0;

	const createToken = (name, value, isGlobal) => {
	  const index = R++;
	  debug(index, value);
	  t[name] = index;
	  src[index] = value;
	  re[index] = new RegExp(value, isGlobal ? 'g' : undefined);
	};

	// The following Regular Expressions can be used for tokenizing,
	// validating, and parsing SemVer version strings.

	// ## Numeric Identifier
	// A single `0`, or a non-zero digit followed by zero or more digits.

	createToken('NUMERICIDENTIFIER', '0|[1-9]\\d*');
	createToken('NUMERICIDENTIFIERLOOSE', '[0-9]+');

	// ## Non-numeric Identifier
	// Zero or more digits, followed by a letter or hyphen, and then zero or
	// more letters, digits, or hyphens.

	createToken('NONNUMERICIDENTIFIER', '\\d*[a-zA-Z-][a-zA-Z0-9-]*');

	// ## Main Version
	// Three dot-separated numeric identifiers.

	createToken('MAINVERSION', `(${src[t.NUMERICIDENTIFIER]})\\.` +
	                   `(${src[t.NUMERICIDENTIFIER]})\\.` +
	                   `(${src[t.NUMERICIDENTIFIER]})`);

	createToken('MAINVERSIONLOOSE', `(${src[t.NUMERICIDENTIFIERLOOSE]})\\.` +
	                        `(${src[t.NUMERICIDENTIFIERLOOSE]})\\.` +
	                        `(${src[t.NUMERICIDENTIFIERLOOSE]})`);

	// ## Pre-release Version Identifier
	// A numeric identifier, or a non-numeric identifier.

	createToken('PRERELEASEIDENTIFIER', `(?:${src[t.NUMERICIDENTIFIER]
	}|${src[t.NONNUMERICIDENTIFIER]})`);

	createToken('PRERELEASEIDENTIFIERLOOSE', `(?:${src[t.NUMERICIDENTIFIERLOOSE]
	}|${src[t.NONNUMERICIDENTIFIER]})`);

	// ## Pre-release Version
	// Hyphen, followed by one or more dot-separated pre-release version
	// identifiers.

	createToken('PRERELEASE', `(?:-(${src[t.PRERELEASEIDENTIFIER]
	}(?:\\.${src[t.PRERELEASEIDENTIFIER]})*))`);

	createToken('PRERELEASELOOSE', `(?:-?(${src[t.PRERELEASEIDENTIFIERLOOSE]
	}(?:\\.${src[t.PRERELEASEIDENTIFIERLOOSE]})*))`);

	// ## Build Metadata Identifier
	// Any combination of digits, letters, or hyphens.

	createToken('BUILDIDENTIFIER', '[0-9A-Za-z-]+');

	// ## Build Metadata
	// Plus sign, followed by one or more period-separated build metadata
	// identifiers.

	createToken('BUILD', `(?:\\+(${src[t.BUILDIDENTIFIER]
	}(?:\\.${src[t.BUILDIDENTIFIER]})*))`);

	// ## Full Version String
	// A main version, followed optionally by a pre-release version and
	// build metadata.

	// Note that the only major, minor, patch, and pre-release sections of
	// the version string are capturing groups.  The build metadata is not a
	// capturing group, because it should not ever be used in version
	// comparison.

	createToken('FULLPLAIN', `v?${src[t.MAINVERSION]
	}${src[t.PRERELEASE]}?${
	  src[t.BUILD]}?`);

	createToken('FULL', `^${src[t.FULLPLAIN]}$`);

	// like full, but allows v1.2.3 and =1.2.3, which people do sometimes.
	// also, 1.0.0alpha1 (prerelease without the hyphen) which is pretty
	// common in the npm registry.
	createToken('LOOSEPLAIN', `[v=\\s]*${src[t.MAINVERSIONLOOSE]
	}${src[t.PRERELEASELOOSE]}?${
	  src[t.BUILD]}?`);

	createToken('LOOSE', `^${src[t.LOOSEPLAIN]}$`);

	createToken('GTLT', '((?:<|>)?=?)');

	// Something like "2.*" or "1.2.x".
	// Note that "x.x" is a valid xRange identifer, meaning "any version"
	// Only the first item is strictly required.
	createToken('XRANGEIDENTIFIERLOOSE', `${src[t.NUMERICIDENTIFIERLOOSE]}|x|X|\\*`);
	createToken('XRANGEIDENTIFIER', `${src[t.NUMERICIDENTIFIER]}|x|X|\\*`);

	createToken('XRANGEPLAIN', `[v=\\s]*(${src[t.XRANGEIDENTIFIER]})` +
	                   `(?:\\.(${src[t.XRANGEIDENTIFIER]})` +
	                   `(?:\\.(${src[t.XRANGEIDENTIFIER]})` +
	                   `(?:${src[t.PRERELEASE]})?${
	                     src[t.BUILD]}?` +
	                   `)?)?`);

	createToken('XRANGEPLAINLOOSE', `[v=\\s]*(${src[t.XRANGEIDENTIFIERLOOSE]})` +
	                        `(?:\\.(${src[t.XRANGEIDENTIFIERLOOSE]})` +
	                        `(?:\\.(${src[t.XRANGEIDENTIFIERLOOSE]})` +
	                        `(?:${src[t.PRERELEASELOOSE]})?${
	                          src[t.BUILD]}?` +
	                        `)?)?`);

	createToken('XRANGE', `^${src[t.GTLT]}\\s*${src[t.XRANGEPLAIN]}$`);
	createToken('XRANGELOOSE', `^${src[t.GTLT]}\\s*${src[t.XRANGEPLAINLOOSE]}$`);

	// Coercion.
	// Extract anything that could conceivably be a part of a valid semver
	createToken('COERCE', `${'(^|[^\\d])' +
	              '(\\d{1,'}${MAX_SAFE_COMPONENT_LENGTH}})` +
	              `(?:\\.(\\d{1,${MAX_SAFE_COMPONENT_LENGTH}}))?` +
	              `(?:\\.(\\d{1,${MAX_SAFE_COMPONENT_LENGTH}}))?` +
	              `(?:$|[^\\d])`);
	createToken('COERCERTL', src[t.COERCE], true);

	// Tilde ranges.
	// Meaning is "reasonably at or greater than"
	createToken('LONETILDE', '(?:~>?)');

	createToken('TILDETRIM', `(\\s*)${src[t.LONETILDE]}\\s+`, true);
	exports.tildeTrimReplace = '$1~';

	createToken('TILDE', `^${src[t.LONETILDE]}${src[t.XRANGEPLAIN]}$`);
	createToken('TILDELOOSE', `^${src[t.LONETILDE]}${src[t.XRANGEPLAINLOOSE]}$`);

	// Caret ranges.
	// Meaning is "at least and backwards compatible with"
	createToken('LONECARET', '(?:\\^)');

	createToken('CARETTRIM', `(\\s*)${src[t.LONECARET]}\\s+`, true);
	exports.caretTrimReplace = '$1^';

	createToken('CARET', `^${src[t.LONECARET]}${src[t.XRANGEPLAIN]}$`);
	createToken('CARETLOOSE', `^${src[t.LONECARET]}${src[t.XRANGEPLAINLOOSE]}$`);

	// A simple gt/lt/eq thing, or just "" to indicate "any version"
	createToken('COMPARATORLOOSE', `^${src[t.GTLT]}\\s*(${src[t.LOOSEPLAIN]})$|^$`);
	createToken('COMPARATOR', `^${src[t.GTLT]}\\s*(${src[t.FULLPLAIN]})$|^$`);

	// An expression to strip any whitespace between the gtlt and the thing
	// it modifies, so that `> 1.2.3` ==> `>1.2.3`
	createToken('COMPARATORTRIM', `(\\s*)${src[t.GTLT]
	}\\s*(${src[t.LOOSEPLAIN]}|${src[t.XRANGEPLAIN]})`, true);
	exports.comparatorTrimReplace = '$1$2$3';

	// Something like `1.2.3 - 1.2.4`
	// Note that these all use the loose form, because they'll be
	// checked against either the strict or loose comparator form
	// later.
	createToken('HYPHENRANGE', `^\\s*(${src[t.XRANGEPLAIN]})` +
	                   `\\s+-\\s+` +
	                   `(${src[t.XRANGEPLAIN]})` +
	                   `\\s*$`);

	createToken('HYPHENRANGELOOSE', `^\\s*(${src[t.XRANGEPLAINLOOSE]})` +
	                        `\\s+-\\s+` +
	                        `(${src[t.XRANGEPLAINLOOSE]})` +
	                        `\\s*$`);

	// Star ranges basically just allow anything at all.
	createToken('STAR', '(<|>)?=?\\s*\\*');
	// >=0.0.0 is like a star
	createToken('GTE0', '^\\s*>=\\s*0\.0\.0\\s*$');
	createToken('GTE0PRE', '^\\s*>=\\s*0\.0\.0-0\\s*$');
} (re$3, re$3.exports));

// parse out just the options we care about so we always get a consistent
// obj with keys in a consistent order.
const opts = ['includePrerelease', 'loose', 'rtl'];
const parseOptions$2 = options =>
  !options ? {}
  : typeof options !== 'object' ? { loose: true }
  : opts.filter(k => options[k]).reduce((options, k) => {
    options[k] = true;
    return options
  }, {});
var parseOptions_1 = parseOptions$2;

const numeric = /^[0-9]+$/;
const compareIdentifiers$1 = (a, b) => {
  const anum = numeric.test(a);
  const bnum = numeric.test(b);

  if (anum && bnum) {
    a = +a;
    b = +b;
  }

  return a === b ? 0
    : (anum && !bnum) ? -1
    : (bnum && !anum) ? 1
    : a < b ? -1
    : 1
};

const rcompareIdentifiers = (a, b) => compareIdentifiers$1(b, a);

var identifiers = {
  compareIdentifiers: compareIdentifiers$1,
  rcompareIdentifiers
};

const debug = debug_1;
const { MAX_LENGTH: MAX_LENGTH$1, MAX_SAFE_INTEGER } = constants;
const { re: re$2, t: t$2 } = re$3.exports;

const parseOptions$1 = parseOptions_1;
const { compareIdentifiers } = identifiers;
class SemVer$c {
  constructor (version, options) {
    options = parseOptions$1(options);

    if (version instanceof SemVer$c) {
      if (version.loose === !!options.loose &&
          version.includePrerelease === !!options.includePrerelease) {
        return version
      } else {
        version = version.version;
      }
    } else if (typeof version !== 'string') {
      throw new TypeError(`Invalid Version: ${version}`)
    }

    if (version.length > MAX_LENGTH$1) {
      throw new TypeError(
        `version is longer than ${MAX_LENGTH$1} characters`
      )
    }

    debug('SemVer', version, options);
    this.options = options;
    this.loose = !!options.loose;
    // this isn't actually relevant for versions, but keep it so that we
    // don't run into trouble passing this.options around.
    this.includePrerelease = !!options.includePrerelease;

    const m = version.trim().match(options.loose ? re$2[t$2.LOOSE] : re$2[t$2.FULL]);

    if (!m) {
      throw new TypeError(`Invalid Version: ${version}`)
    }

    this.raw = version;

    // these are actually numbers
    this.major = +m[1];
    this.minor = +m[2];
    this.patch = +m[3];

    if (this.major > MAX_SAFE_INTEGER || this.major < 0) {
      throw new TypeError('Invalid major version')
    }

    if (this.minor > MAX_SAFE_INTEGER || this.minor < 0) {
      throw new TypeError('Invalid minor version')
    }

    if (this.patch > MAX_SAFE_INTEGER || this.patch < 0) {
      throw new TypeError('Invalid patch version')
    }

    // numberify any prerelease numeric ids
    if (!m[4]) {
      this.prerelease = [];
    } else {
      this.prerelease = m[4].split('.').map((id) => {
        if (/^[0-9]+$/.test(id)) {
          const num = +id;
          if (num >= 0 && num < MAX_SAFE_INTEGER) {
            return num
          }
        }
        return id
      });
    }

    this.build = m[5] ? m[5].split('.') : [];
    this.format();
  }

  format () {
    this.version = `${this.major}.${this.minor}.${this.patch}`;
    if (this.prerelease.length) {
      this.version += `-${this.prerelease.join('.')}`;
    }
    return this.version
  }

  toString () {
    return this.version
  }

  compare (other) {
    debug('SemVer.compare', this.version, this.options, other);
    if (!(other instanceof SemVer$c)) {
      if (typeof other === 'string' && other === this.version) {
        return 0
      }
      other = new SemVer$c(other, this.options);
    }

    if (other.version === this.version) {
      return 0
    }

    return this.compareMain(other) || this.comparePre(other)
  }

  compareMain (other) {
    if (!(other instanceof SemVer$c)) {
      other = new SemVer$c(other, this.options);
    }

    return (
      compareIdentifiers(this.major, other.major) ||
      compareIdentifiers(this.minor, other.minor) ||
      compareIdentifiers(this.patch, other.patch)
    )
  }

  comparePre (other) {
    if (!(other instanceof SemVer$c)) {
      other = new SemVer$c(other, this.options);
    }

    // NOT having a prerelease is > having one
    if (this.prerelease.length && !other.prerelease.length) {
      return -1
    } else if (!this.prerelease.length && other.prerelease.length) {
      return 1
    } else if (!this.prerelease.length && !other.prerelease.length) {
      return 0
    }

    let i = 0;
    do {
      const a = this.prerelease[i];
      const b = other.prerelease[i];
      debug('prerelease compare', i, a, b);
      if (a === undefined && b === undefined) {
        return 0
      } else if (b === undefined) {
        return 1
      } else if (a === undefined) {
        return -1
      } else if (a === b) {
        continue
      } else {
        return compareIdentifiers(a, b)
      }
    } while (++i)
  }

  compareBuild (other) {
    if (!(other instanceof SemVer$c)) {
      other = new SemVer$c(other, this.options);
    }

    let i = 0;
    do {
      const a = this.build[i];
      const b = other.build[i];
      debug('prerelease compare', i, a, b);
      if (a === undefined && b === undefined) {
        return 0
      } else if (b === undefined) {
        return 1
      } else if (a === undefined) {
        return -1
      } else if (a === b) {
        continue
      } else {
        return compareIdentifiers(a, b)
      }
    } while (++i)
  }

  // preminor will bump the version up to the next minor release, and immediately
  // down to pre-release. premajor and prepatch work the same way.
  inc (release, identifier) {
    switch (release) {
      case 'premajor':
        this.prerelease.length = 0;
        this.patch = 0;
        this.minor = 0;
        this.major++;
        this.inc('pre', identifier);
        break
      case 'preminor':
        this.prerelease.length = 0;
        this.patch = 0;
        this.minor++;
        this.inc('pre', identifier);
        break
      case 'prepatch':
        // If this is already a prerelease, it will bump to the next version
        // drop any prereleases that might already exist, since they are not
        // relevant at this point.
        this.prerelease.length = 0;
        this.inc('patch', identifier);
        this.inc('pre', identifier);
        break
      // If the input is a non-prerelease version, this acts the same as
      // prepatch.
      case 'prerelease':
        if (this.prerelease.length === 0) {
          this.inc('patch', identifier);
        }
        this.inc('pre', identifier);
        break

      case 'major':
        // If this is a pre-major version, bump up to the same major version.
        // Otherwise increment major.
        // 1.0.0-5 bumps to 1.0.0
        // 1.1.0 bumps to 2.0.0
        if (
          this.minor !== 0 ||
          this.patch !== 0 ||
          this.prerelease.length === 0
        ) {
          this.major++;
        }
        this.minor = 0;
        this.patch = 0;
        this.prerelease = [];
        break
      case 'minor':
        // If this is a pre-minor version, bump up to the same minor version.
        // Otherwise increment minor.
        // 1.2.0-5 bumps to 1.2.0
        // 1.2.1 bumps to 1.3.0
        if (this.patch !== 0 || this.prerelease.length === 0) {
          this.minor++;
        }
        this.patch = 0;
        this.prerelease = [];
        break
      case 'patch':
        // If this is not a pre-release version, it will increment the patch.
        // If it is a pre-release it will bump up to the same patch version.
        // 1.2.0-5 patches to 1.2.0
        // 1.2.0 patches to 1.2.1
        if (this.prerelease.length === 0) {
          this.patch++;
        }
        this.prerelease = [];
        break
      // This probably shouldn't be used publicly.
      // 1.0.0 'pre' would become 1.0.0-0 which is the wrong direction.
      case 'pre':
        if (this.prerelease.length === 0) {
          this.prerelease = [0];
        } else {
          let i = this.prerelease.length;
          while (--i >= 0) {
            if (typeof this.prerelease[i] === 'number') {
              this.prerelease[i]++;
              i = -2;
            }
          }
          if (i === -1) {
            // didn't increment anything
            this.prerelease.push(0);
          }
        }
        if (identifier) {
          // 1.2.0-beta.1 bumps to 1.2.0-beta.2,
          // 1.2.0-beta.fooblz or 1.2.0-beta bumps to 1.2.0-beta.0
          if (this.prerelease[0] === identifier) {
            if (isNaN(this.prerelease[1])) {
              this.prerelease = [identifier, 0];
            }
          } else {
            this.prerelease = [identifier, 0];
          }
        }
        break

      default:
        throw new Error(`invalid increment argument: ${release}`)
    }
    this.format();
    this.raw = this.version;
    return this
  }
}

var semver$3 = SemVer$c;

const {MAX_LENGTH} = constants;
const { re: re$1, t: t$1 } = re$3.exports;
const SemVer$b = semver$3;

const parseOptions = parseOptions_1;
const parse$8 = (version, options) => {
  options = parseOptions(options);

  if (version instanceof SemVer$b) {
    return version
  }

  if (typeof version !== 'string') {
    return null
  }

  if (version.length > MAX_LENGTH) {
    return null
  }

  const r = options.loose ? re$1[t$1.LOOSE] : re$1[t$1.FULL];
  if (!r.test(version)) {
    return null
  }

  try {
    return new SemVer$b(version, options)
  } catch (er) {
    return null
  }
};

var parse_1$1 = parse$8;

const parse$7 = parse_1$1;
const valid$1 = (version, options) => {
  const v = parse$7(version, options);
  return v ? v.version : null
};
var valid_1 = valid$1;

const parse$6 = parse_1$1;
const clean = (version, options) => {
  const s = parse$6(version.trim().replace(/^[=v]+/, ''), options);
  return s ? s.version : null
};
var clean_1 = clean;

const SemVer$a = semver$3;

const inc = (version, release, options, identifier) => {
  if (typeof (options) === 'string') {
    identifier = options;
    options = undefined;
  }

  try {
    return new SemVer$a(version, options).inc(release, identifier).version
  } catch (er) {
    return null
  }
};
var inc_1 = inc;

const SemVer$9 = semver$3;
const compare$a = (a, b, loose) =>
  new SemVer$9(a, loose).compare(new SemVer$9(b, loose));

var compare_1 = compare$a;

const compare$9 = compare_1;
const eq$2 = (a, b, loose) => compare$9(a, b, loose) === 0;
var eq_1 = eq$2;

const parse$5 = parse_1$1;
const eq$1 = eq_1;

const diff = (version1, version2) => {
  if (eq$1(version1, version2)) {
    return null
  } else {
    const v1 = parse$5(version1);
    const v2 = parse$5(version2);
    const hasPre = v1.prerelease.length || v2.prerelease.length;
    const prefix = hasPre ? 'pre' : '';
    const defaultResult = hasPre ? 'prerelease' : '';
    for (const key in v1) {
      if (key === 'major' || key === 'minor' || key === 'patch') {
        if (v1[key] !== v2[key]) {
          return prefix + key
        }
      }
    }
    return defaultResult // may be undefined
  }
};
var diff_1 = diff;

const SemVer$8 = semver$3;
const major = (a, loose) => new SemVer$8(a, loose).major;
var major_1 = major;

const SemVer$7 = semver$3;
const minor = (a, loose) => new SemVer$7(a, loose).minor;
var minor_1 = minor;

const SemVer$6 = semver$3;
const patch = (a, loose) => new SemVer$6(a, loose).patch;
var patch_1 = patch;

const parse$4 = parse_1$1;
const prerelease = (version, options) => {
  const parsed = parse$4(version, options);
  return (parsed && parsed.prerelease.length) ? parsed.prerelease : null
};
var prerelease_1 = prerelease;

const compare$8 = compare_1;
const rcompare = (a, b, loose) => compare$8(b, a, loose);
var rcompare_1 = rcompare;

const compare$7 = compare_1;
const compareLoose = (a, b) => compare$7(a, b, true);
var compareLoose_1 = compareLoose;

const SemVer$5 = semver$3;
const compareBuild$2 = (a, b, loose) => {
  const versionA = new SemVer$5(a, loose);
  const versionB = new SemVer$5(b, loose);
  return versionA.compare(versionB) || versionA.compareBuild(versionB)
};
var compareBuild_1 = compareBuild$2;

const compareBuild$1 = compareBuild_1;
const sort = (list, loose) => list.sort((a, b) => compareBuild$1(a, b, loose));
var sort_1 = sort;

const compareBuild = compareBuild_1;
const rsort = (list, loose) => list.sort((a, b) => compareBuild(b, a, loose));
var rsort_1 = rsort;

const compare$6 = compare_1;
const gt$3 = (a, b, loose) => compare$6(a, b, loose) > 0;
var gt_1 = gt$3;

const compare$5 = compare_1;
const lt$2 = (a, b, loose) => compare$5(a, b, loose) < 0;
var lt_1 = lt$2;

const compare$4 = compare_1;
const neq$1 = (a, b, loose) => compare$4(a, b, loose) !== 0;
var neq_1 = neq$1;

const compare$3 = compare_1;
const gte$2 = (a, b, loose) => compare$3(a, b, loose) >= 0;
var gte_1 = gte$2;

const compare$2 = compare_1;
const lte$2 = (a, b, loose) => compare$2(a, b, loose) <= 0;
var lte_1 = lte$2;

const eq = eq_1;
const neq = neq_1;
const gt$2 = gt_1;
const gte$1 = gte_1;
const lt$1 = lt_1;
const lte$1 = lte_1;

const cmp = (a, op, b, loose) => {
  switch (op) {
    case '===':
      if (typeof a === 'object')
        a = a.version;
      if (typeof b === 'object')
        b = b.version;
      return a === b

    case '!==':
      if (typeof a === 'object')
        a = a.version;
      if (typeof b === 'object')
        b = b.version;
      return a !== b

    case '':
    case '=':
    case '==':
      return eq(a, b, loose)

    case '!=':
      return neq(a, b, loose)

    case '>':
      return gt$2(a, b, loose)

    case '>=':
      return gte$1(a, b, loose)

    case '<':
      return lt$1(a, b, loose)

    case '<=':
      return lte$1(a, b, loose)

    default:
      throw new TypeError(`Invalid operator: ${op}`)
  }
};
var cmp_1 = cmp;

const SemVer$4 = semver$3;
const parse$3 = parse_1$1;
const {re, t} = re$3.exports;

const coerce = (version, options) => {
  if (version instanceof SemVer$4) {
    return version
  }

  if (typeof version === 'number') {
    version = String(version);
  }

  if (typeof version !== 'string') {
    return null
  }

  options = options || {};

  let match = null;
  if (!options.rtl) {
    match = version.match(re[t.COERCE]);
  } else {
    // Find the right-most coercible string that does not share
    // a terminus with a more left-ward coercible string.
    // Eg, '1.2.3.4' wants to coerce '2.3.4', not '3.4' or '4'
    //
    // Walk through the string checking with a /g regexp
    // Manually set the index so as to pick up overlapping matches.
    // Stop when we get a match that ends at the string end, since no
    // coercible string can be more right-ward without the same terminus.
    let next;
    while ((next = re[t.COERCERTL].exec(version)) &&
        (!match || match.index + match[0].length !== version.length)
    ) {
      if (!match ||
            next.index + next[0].length !== match.index + match[0].length) {
        match = next;
      }
      re[t.COERCERTL].lastIndex = next.index + next[1].length + next[2].length;
    }
    // leave it in a clean state
    re[t.COERCERTL].lastIndex = -1;
  }

  if (match === null)
    return null

  return parse$3(`${match[2]}.${match[3] || '0'}.${match[4] || '0'}`, options)
};
var coerce_1 = coerce;

var iterator;
var hasRequiredIterator;

function requireIterator () {
	if (hasRequiredIterator) return iterator;
	hasRequiredIterator = 1;
	iterator = function (Yallist) {
	  Yallist.prototype[Symbol.iterator] = function* () {
	    for (let walker = this.head; walker; walker = walker.next) {
	      yield walker.value;
	    }
	  };
	};
	return iterator;
}

var yallist;
var hasRequiredYallist;

function requireYallist () {
	if (hasRequiredYallist) return yallist;
	hasRequiredYallist = 1;
	yallist = Yallist;

	Yallist.Node = Node;
	Yallist.create = Yallist;

	function Yallist (list) {
	  var self = this;
	  if (!(self instanceof Yallist)) {
	    self = new Yallist();
	  }

	  self.tail = null;
	  self.head = null;
	  self.length = 0;

	  if (list && typeof list.forEach === 'function') {
	    list.forEach(function (item) {
	      self.push(item);
	    });
	  } else if (arguments.length > 0) {
	    for (var i = 0, l = arguments.length; i < l; i++) {
	      self.push(arguments[i]);
	    }
	  }

	  return self
	}

	Yallist.prototype.removeNode = function (node) {
	  if (node.list !== this) {
	    throw new Error('removing node which does not belong to this list')
	  }

	  var next = node.next;
	  var prev = node.prev;

	  if (next) {
	    next.prev = prev;
	  }

	  if (prev) {
	    prev.next = next;
	  }

	  if (node === this.head) {
	    this.head = next;
	  }
	  if (node === this.tail) {
	    this.tail = prev;
	  }

	  node.list.length--;
	  node.next = null;
	  node.prev = null;
	  node.list = null;

	  return next
	};

	Yallist.prototype.unshiftNode = function (node) {
	  if (node === this.head) {
	    return
	  }

	  if (node.list) {
	    node.list.removeNode(node);
	  }

	  var head = this.head;
	  node.list = this;
	  node.next = head;
	  if (head) {
	    head.prev = node;
	  }

	  this.head = node;
	  if (!this.tail) {
	    this.tail = node;
	  }
	  this.length++;
	};

	Yallist.prototype.pushNode = function (node) {
	  if (node === this.tail) {
	    return
	  }

	  if (node.list) {
	    node.list.removeNode(node);
	  }

	  var tail = this.tail;
	  node.list = this;
	  node.prev = tail;
	  if (tail) {
	    tail.next = node;
	  }

	  this.tail = node;
	  if (!this.head) {
	    this.head = node;
	  }
	  this.length++;
	};

	Yallist.prototype.push = function () {
	  for (var i = 0, l = arguments.length; i < l; i++) {
	    push(this, arguments[i]);
	  }
	  return this.length
	};

	Yallist.prototype.unshift = function () {
	  for (var i = 0, l = arguments.length; i < l; i++) {
	    unshift(this, arguments[i]);
	  }
	  return this.length
	};

	Yallist.prototype.pop = function () {
	  if (!this.tail) {
	    return undefined
	  }

	  var res = this.tail.value;
	  this.tail = this.tail.prev;
	  if (this.tail) {
	    this.tail.next = null;
	  } else {
	    this.head = null;
	  }
	  this.length--;
	  return res
	};

	Yallist.prototype.shift = function () {
	  if (!this.head) {
	    return undefined
	  }

	  var res = this.head.value;
	  this.head = this.head.next;
	  if (this.head) {
	    this.head.prev = null;
	  } else {
	    this.tail = null;
	  }
	  this.length--;
	  return res
	};

	Yallist.prototype.forEach = function (fn, thisp) {
	  thisp = thisp || this;
	  for (var walker = this.head, i = 0; walker !== null; i++) {
	    fn.call(thisp, walker.value, i, this);
	    walker = walker.next;
	  }
	};

	Yallist.prototype.forEachReverse = function (fn, thisp) {
	  thisp = thisp || this;
	  for (var walker = this.tail, i = this.length - 1; walker !== null; i--) {
	    fn.call(thisp, walker.value, i, this);
	    walker = walker.prev;
	  }
	};

	Yallist.prototype.get = function (n) {
	  for (var i = 0, walker = this.head; walker !== null && i < n; i++) {
	    // abort out of the list early if we hit a cycle
	    walker = walker.next;
	  }
	  if (i === n && walker !== null) {
	    return walker.value
	  }
	};

	Yallist.prototype.getReverse = function (n) {
	  for (var i = 0, walker = this.tail; walker !== null && i < n; i++) {
	    // abort out of the list early if we hit a cycle
	    walker = walker.prev;
	  }
	  if (i === n && walker !== null) {
	    return walker.value
	  }
	};

	Yallist.prototype.map = function (fn, thisp) {
	  thisp = thisp || this;
	  var res = new Yallist();
	  for (var walker = this.head; walker !== null;) {
	    res.push(fn.call(thisp, walker.value, this));
	    walker = walker.next;
	  }
	  return res
	};

	Yallist.prototype.mapReverse = function (fn, thisp) {
	  thisp = thisp || this;
	  var res = new Yallist();
	  for (var walker = this.tail; walker !== null;) {
	    res.push(fn.call(thisp, walker.value, this));
	    walker = walker.prev;
	  }
	  return res
	};

	Yallist.prototype.reduce = function (fn, initial) {
	  var acc;
	  var walker = this.head;
	  if (arguments.length > 1) {
	    acc = initial;
	  } else if (this.head) {
	    walker = this.head.next;
	    acc = this.head.value;
	  } else {
	    throw new TypeError('Reduce of empty list with no initial value')
	  }

	  for (var i = 0; walker !== null; i++) {
	    acc = fn(acc, walker.value, i);
	    walker = walker.next;
	  }

	  return acc
	};

	Yallist.prototype.reduceReverse = function (fn, initial) {
	  var acc;
	  var walker = this.tail;
	  if (arguments.length > 1) {
	    acc = initial;
	  } else if (this.tail) {
	    walker = this.tail.prev;
	    acc = this.tail.value;
	  } else {
	    throw new TypeError('Reduce of empty list with no initial value')
	  }

	  for (var i = this.length - 1; walker !== null; i--) {
	    acc = fn(acc, walker.value, i);
	    walker = walker.prev;
	  }

	  return acc
	};

	Yallist.prototype.toArray = function () {
	  var arr = new Array(this.length);
	  for (var i = 0, walker = this.head; walker !== null; i++) {
	    arr[i] = walker.value;
	    walker = walker.next;
	  }
	  return arr
	};

	Yallist.prototype.toArrayReverse = function () {
	  var arr = new Array(this.length);
	  for (var i = 0, walker = this.tail; walker !== null; i++) {
	    arr[i] = walker.value;
	    walker = walker.prev;
	  }
	  return arr
	};

	Yallist.prototype.slice = function (from, to) {
	  to = to || this.length;
	  if (to < 0) {
	    to += this.length;
	  }
	  from = from || 0;
	  if (from < 0) {
	    from += this.length;
	  }
	  var ret = new Yallist();
	  if (to < from || to < 0) {
	    return ret
	  }
	  if (from < 0) {
	    from = 0;
	  }
	  if (to > this.length) {
	    to = this.length;
	  }
	  for (var i = 0, walker = this.head; walker !== null && i < from; i++) {
	    walker = walker.next;
	  }
	  for (; walker !== null && i < to; i++, walker = walker.next) {
	    ret.push(walker.value);
	  }
	  return ret
	};

	Yallist.prototype.sliceReverse = function (from, to) {
	  to = to || this.length;
	  if (to < 0) {
	    to += this.length;
	  }
	  from = from || 0;
	  if (from < 0) {
	    from += this.length;
	  }
	  var ret = new Yallist();
	  if (to < from || to < 0) {
	    return ret
	  }
	  if (from < 0) {
	    from = 0;
	  }
	  if (to > this.length) {
	    to = this.length;
	  }
	  for (var i = this.length, walker = this.tail; walker !== null && i > to; i--) {
	    walker = walker.prev;
	  }
	  for (; walker !== null && i > from; i--, walker = walker.prev) {
	    ret.push(walker.value);
	  }
	  return ret
	};

	Yallist.prototype.splice = function (start, deleteCount, ...nodes) {
	  if (start > this.length) {
	    start = this.length - 1;
	  }
	  if (start < 0) {
	    start = this.length + start;
	  }

	  for (var i = 0, walker = this.head; walker !== null && i < start; i++) {
	    walker = walker.next;
	  }

	  var ret = [];
	  for (var i = 0; walker && i < deleteCount; i++) {
	    ret.push(walker.value);
	    walker = this.removeNode(walker);
	  }
	  if (walker === null) {
	    walker = this.tail;
	  }

	  if (walker !== this.head && walker !== this.tail) {
	    walker = walker.prev;
	  }

	  for (var i = 0; i < nodes.length; i++) {
	    walker = insert(this, walker, nodes[i]);
	  }
	  return ret;
	};

	Yallist.prototype.reverse = function () {
	  var head = this.head;
	  var tail = this.tail;
	  for (var walker = head; walker !== null; walker = walker.prev) {
	    var p = walker.prev;
	    walker.prev = walker.next;
	    walker.next = p;
	  }
	  this.head = tail;
	  this.tail = head;
	  return this
	};

	function insert (self, node, value) {
	  var inserted = node === self.head ?
	    new Node(value, null, node, self) :
	    new Node(value, node, node.next, self);

	  if (inserted.next === null) {
	    self.tail = inserted;
	  }
	  if (inserted.prev === null) {
	    self.head = inserted;
	  }

	  self.length++;

	  return inserted
	}

	function push (self, item) {
	  self.tail = new Node(item, self.tail, null, self);
	  if (!self.head) {
	    self.head = self.tail;
	  }
	  self.length++;
	}

	function unshift (self, item) {
	  self.head = new Node(item, null, self.head, self);
	  if (!self.tail) {
	    self.tail = self.head;
	  }
	  self.length++;
	}

	function Node (value, prev, next, list) {
	  if (!(this instanceof Node)) {
	    return new Node(value, prev, next, list)
	  }

	  this.list = list;
	  this.value = value;

	  if (prev) {
	    prev.next = this;
	    this.prev = prev;
	  } else {
	    this.prev = null;
	  }

	  if (next) {
	    next.prev = this;
	    this.next = next;
	  } else {
	    this.next = null;
	  }
	}

	try {
	  // add if support for Symbol.iterator is present
	  requireIterator()(Yallist);
	} catch (er) {}
	return yallist;
}

var lruCache;
var hasRequiredLruCache;

function requireLruCache () {
	if (hasRequiredLruCache) return lruCache;
	hasRequiredLruCache = 1;

	// A linked list to keep track of recently-used-ness
	const Yallist = requireYallist();

	const MAX = Symbol('max');
	const LENGTH = Symbol('length');
	const LENGTH_CALCULATOR = Symbol('lengthCalculator');
	const ALLOW_STALE = Symbol('allowStale');
	const MAX_AGE = Symbol('maxAge');
	const DISPOSE = Symbol('dispose');
	const NO_DISPOSE_ON_SET = Symbol('noDisposeOnSet');
	const LRU_LIST = Symbol('lruList');
	const CACHE = Symbol('cache');
	const UPDATE_AGE_ON_GET = Symbol('updateAgeOnGet');

	const naiveLength = () => 1;

	// lruList is a yallist where the head is the youngest
	// item, and the tail is the oldest.  the list contains the Hit
	// objects as the entries.
	// Each Hit object has a reference to its Yallist.Node.  This
	// never changes.
	//
	// cache is a Map (or PseudoMap) that matches the keys to
	// the Yallist.Node object.
	class LRUCache {
	  constructor (options) {
	    if (typeof options === 'number')
	      options = { max: options };

	    if (!options)
	      options = {};

	    if (options.max && (typeof options.max !== 'number' || options.max < 0))
	      throw new TypeError('max must be a non-negative number')
	    // Kind of weird to have a default max of Infinity, but oh well.
	    this[MAX] = options.max || Infinity;

	    const lc = options.length || naiveLength;
	    this[LENGTH_CALCULATOR] = (typeof lc !== 'function') ? naiveLength : lc;
	    this[ALLOW_STALE] = options.stale || false;
	    if (options.maxAge && typeof options.maxAge !== 'number')
	      throw new TypeError('maxAge must be a number')
	    this[MAX_AGE] = options.maxAge || 0;
	    this[DISPOSE] = options.dispose;
	    this[NO_DISPOSE_ON_SET] = options.noDisposeOnSet || false;
	    this[UPDATE_AGE_ON_GET] = options.updateAgeOnGet || false;
	    this.reset();
	  }

	  // resize the cache when the max changes.
	  set max (mL) {
	    if (typeof mL !== 'number' || mL < 0)
	      throw new TypeError('max must be a non-negative number')

	    this[MAX] = mL || Infinity;
	    trim(this);
	  }
	  get max () {
	    return this[MAX]
	  }

	  set allowStale (allowStale) {
	    this[ALLOW_STALE] = !!allowStale;
	  }
	  get allowStale () {
	    return this[ALLOW_STALE]
	  }

	  set maxAge (mA) {
	    if (typeof mA !== 'number')
	      throw new TypeError('maxAge must be a non-negative number')

	    this[MAX_AGE] = mA;
	    trim(this);
	  }
	  get maxAge () {
	    return this[MAX_AGE]
	  }

	  // resize the cache when the lengthCalculator changes.
	  set lengthCalculator (lC) {
	    if (typeof lC !== 'function')
	      lC = naiveLength;

	    if (lC !== this[LENGTH_CALCULATOR]) {
	      this[LENGTH_CALCULATOR] = lC;
	      this[LENGTH] = 0;
	      this[LRU_LIST].forEach(hit => {
	        hit.length = this[LENGTH_CALCULATOR](hit.value, hit.key);
	        this[LENGTH] += hit.length;
	      });
	    }
	    trim(this);
	  }
	  get lengthCalculator () { return this[LENGTH_CALCULATOR] }

	  get length () { return this[LENGTH] }
	  get itemCount () { return this[LRU_LIST].length }

	  rforEach (fn, thisp) {
	    thisp = thisp || this;
	    for (let walker = this[LRU_LIST].tail; walker !== null;) {
	      const prev = walker.prev;
	      forEachStep(this, fn, walker, thisp);
	      walker = prev;
	    }
	  }

	  forEach (fn, thisp) {
	    thisp = thisp || this;
	    for (let walker = this[LRU_LIST].head; walker !== null;) {
	      const next = walker.next;
	      forEachStep(this, fn, walker, thisp);
	      walker = next;
	    }
	  }

	  keys () {
	    return this[LRU_LIST].toArray().map(k => k.key)
	  }

	  values () {
	    return this[LRU_LIST].toArray().map(k => k.value)
	  }

	  reset () {
	    if (this[DISPOSE] &&
	        this[LRU_LIST] &&
	        this[LRU_LIST].length) {
	      this[LRU_LIST].forEach(hit => this[DISPOSE](hit.key, hit.value));
	    }

	    this[CACHE] = new Map(); // hash of items by key
	    this[LRU_LIST] = new Yallist(); // list of items in order of use recency
	    this[LENGTH] = 0; // length of items in the list
	  }

	  dump () {
	    return this[LRU_LIST].map(hit =>
	      isStale(this, hit) ? false : {
	        k: hit.key,
	        v: hit.value,
	        e: hit.now + (hit.maxAge || 0)
	      }).toArray().filter(h => h)
	  }

	  dumpLru () {
	    return this[LRU_LIST]
	  }

	  set (key, value, maxAge) {
	    maxAge = maxAge || this[MAX_AGE];

	    if (maxAge && typeof maxAge !== 'number')
	      throw new TypeError('maxAge must be a number')

	    const now = maxAge ? Date.now() : 0;
	    const len = this[LENGTH_CALCULATOR](value, key);

	    if (this[CACHE].has(key)) {
	      if (len > this[MAX]) {
	        del(this, this[CACHE].get(key));
	        return false
	      }

	      const node = this[CACHE].get(key);
	      const item = node.value;

	      // dispose of the old one before overwriting
	      // split out into 2 ifs for better coverage tracking
	      if (this[DISPOSE]) {
	        if (!this[NO_DISPOSE_ON_SET])
	          this[DISPOSE](key, item.value);
	      }

	      item.now = now;
	      item.maxAge = maxAge;
	      item.value = value;
	      this[LENGTH] += len - item.length;
	      item.length = len;
	      this.get(key);
	      trim(this);
	      return true
	    }

	    const hit = new Entry(key, value, len, now, maxAge);

	    // oversized objects fall out of cache automatically.
	    if (hit.length > this[MAX]) {
	      if (this[DISPOSE])
	        this[DISPOSE](key, value);

	      return false
	    }

	    this[LENGTH] += hit.length;
	    this[LRU_LIST].unshift(hit);
	    this[CACHE].set(key, this[LRU_LIST].head);
	    trim(this);
	    return true
	  }

	  has (key) {
	    if (!this[CACHE].has(key)) return false
	    const hit = this[CACHE].get(key).value;
	    return !isStale(this, hit)
	  }

	  get (key) {
	    return get(this, key, true)
	  }

	  peek (key) {
	    return get(this, key, false)
	  }

	  pop () {
	    const node = this[LRU_LIST].tail;
	    if (!node)
	      return null

	    del(this, node);
	    return node.value
	  }

	  del (key) {
	    del(this, this[CACHE].get(key));
	  }

	  load (arr) {
	    // reset the cache
	    this.reset();

	    const now = Date.now();
	    // A previous serialized cache has the most recent items first
	    for (let l = arr.length - 1; l >= 0; l--) {
	      const hit = arr[l];
	      const expiresAt = hit.e || 0;
	      if (expiresAt === 0)
	        // the item was created without expiration in a non aged cache
	        this.set(hit.k, hit.v);
	      else {
	        const maxAge = expiresAt - now;
	        // dont add already expired items
	        if (maxAge > 0) {
	          this.set(hit.k, hit.v, maxAge);
	        }
	      }
	    }
	  }

	  prune () {
	    this[CACHE].forEach((value, key) => get(this, key, false));
	  }
	}

	const get = (self, key, doUse) => {
	  const node = self[CACHE].get(key);
	  if (node) {
	    const hit = node.value;
	    if (isStale(self, hit)) {
	      del(self, node);
	      if (!self[ALLOW_STALE])
	        return undefined
	    } else {
	      if (doUse) {
	        if (self[UPDATE_AGE_ON_GET])
	          node.value.now = Date.now();
	        self[LRU_LIST].unshiftNode(node);
	      }
	    }
	    return hit.value
	  }
	};

	const isStale = (self, hit) => {
	  if (!hit || (!hit.maxAge && !self[MAX_AGE]))
	    return false

	  const diff = Date.now() - hit.now;
	  return hit.maxAge ? diff > hit.maxAge
	    : self[MAX_AGE] && (diff > self[MAX_AGE])
	};

	const trim = self => {
	  if (self[LENGTH] > self[MAX]) {
	    for (let walker = self[LRU_LIST].tail;
	      self[LENGTH] > self[MAX] && walker !== null;) {
	      // We know that we're about to delete this one, and also
	      // what the next least recently used key will be, so just
	      // go ahead and set it now.
	      const prev = walker.prev;
	      del(self, walker);
	      walker = prev;
	    }
	  }
	};

	const del = (self, node) => {
	  if (node) {
	    const hit = node.value;
	    if (self[DISPOSE])
	      self[DISPOSE](hit.key, hit.value);

	    self[LENGTH] -= hit.length;
	    self[CACHE].delete(hit.key);
	    self[LRU_LIST].removeNode(node);
	  }
	};

	class Entry {
	  constructor (key, value, length, now, maxAge) {
	    this.key = key;
	    this.value = value;
	    this.length = length;
	    this.now = now;
	    this.maxAge = maxAge || 0;
	  }
	}

	const forEachStep = (self, fn, node, thisp) => {
	  let hit = node.value;
	  if (isStale(self, hit)) {
	    del(self, node);
	    if (!self[ALLOW_STALE])
	      hit = undefined;
	  }
	  if (hit)
	    fn.call(thisp, hit.value, hit.key, self);
	};

	lruCache = LRUCache;
	return lruCache;
}

var range;
var hasRequiredRange;

function requireRange () {
	if (hasRequiredRange) return range;
	hasRequiredRange = 1;
	// hoisted class for cyclic dependency
	class Range {
	  constructor (range, options) {
	    options = parseOptions(options);

	    if (range instanceof Range) {
	      if (
	        range.loose === !!options.loose &&
	        range.includePrerelease === !!options.includePrerelease
	      ) {
	        return range
	      } else {
	        return new Range(range.raw, options)
	      }
	    }

	    if (range instanceof Comparator) {
	      // just put it in the set and return
	      this.raw = range.value;
	      this.set = [[range]];
	      this.format();
	      return this
	    }

	    this.options = options;
	    this.loose = !!options.loose;
	    this.includePrerelease = !!options.includePrerelease;

	    // First, split based on boolean or ||
	    this.raw = range;
	    this.set = range
	      .split(/\s*\|\|\s*/)
	      // map the range to a 2d array of comparators
	      .map(range => this.parseRange(range.trim()))
	      // throw out any comparator lists that are empty
	      // this generally means that it was not a valid range, which is allowed
	      // in loose mode, but will still throw if the WHOLE range is invalid.
	      .filter(c => c.length);

	    if (!this.set.length) {
	      throw new TypeError(`Invalid SemVer Range: ${range}`)
	    }

	    // if we have any that are not the null set, throw out null sets.
	    if (this.set.length > 1) {
	      // keep the first one, in case they're all null sets
	      const first = this.set[0];
	      this.set = this.set.filter(c => !isNullSet(c[0]));
	      if (this.set.length === 0)
	        this.set = [first];
	      else if (this.set.length > 1) {
	        // if we have any that are *, then the range is just *
	        for (const c of this.set) {
	          if (c.length === 1 && isAny(c[0])) {
	            this.set = [c];
	            break
	          }
	        }
	      }
	    }

	    this.format();
	  }

	  format () {
	    this.range = this.set
	      .map((comps) => {
	        return comps.join(' ').trim()
	      })
	      .join('||')
	      .trim();
	    return this.range
	  }

	  toString () {
	    return this.range
	  }

	  parseRange (range) {
	    range = range.trim();

	    // memoize range parsing for performance.
	    // this is a very hot path, and fully deterministic.
	    const memoOpts = Object.keys(this.options).join(',');
	    const memoKey = `parseRange:${memoOpts}:${range}`;
	    const cached = cache.get(memoKey);
	    if (cached)
	      return cached

	    const loose = this.options.loose;
	    // `1.2.3 - 1.2.4` => `>=1.2.3 <=1.2.4`
	    const hr = loose ? re[t.HYPHENRANGELOOSE] : re[t.HYPHENRANGE];
	    range = range.replace(hr, hyphenReplace(this.options.includePrerelease));
	    debug('hyphen replace', range);
	    // `> 1.2.3 < 1.2.5` => `>1.2.3 <1.2.5`
	    range = range.replace(re[t.COMPARATORTRIM], comparatorTrimReplace);
	    debug('comparator trim', range, re[t.COMPARATORTRIM]);

	    // `~ 1.2.3` => `~1.2.3`
	    range = range.replace(re[t.TILDETRIM], tildeTrimReplace);

	    // `^ 1.2.3` => `^1.2.3`
	    range = range.replace(re[t.CARETTRIM], caretTrimReplace);

	    // normalize spaces
	    range = range.split(/\s+/).join(' ');

	    // At this point, the range is completely trimmed and
	    // ready to be split into comparators.

	    const compRe = loose ? re[t.COMPARATORLOOSE] : re[t.COMPARATOR];
	    const rangeList = range
	      .split(' ')
	      .map(comp => parseComparator(comp, this.options))
	      .join(' ')
	      .split(/\s+/)
	      // >=0.0.0 is equivalent to *
	      .map(comp => replaceGTE0(comp, this.options))
	      // in loose mode, throw out any that are not valid comparators
	      .filter(this.options.loose ? comp => !!comp.match(compRe) : () => true)
	      .map(comp => new Comparator(comp, this.options));

	    // if any comparators are the null set, then replace with JUST null set
	    // if more than one comparator, remove any * comparators
	    // also, don't include the same comparator more than once
	    rangeList.length;
	    const rangeMap = new Map();
	    for (const comp of rangeList) {
	      if (isNullSet(comp))
	        return [comp]
	      rangeMap.set(comp.value, comp);
	    }
	    if (rangeMap.size > 1 && rangeMap.has(''))
	      rangeMap.delete('');

	    const result = [...rangeMap.values()];
	    cache.set(memoKey, result);
	    return result
	  }

	  intersects (range, options) {
	    if (!(range instanceof Range)) {
	      throw new TypeError('a Range is required')
	    }

	    return this.set.some((thisComparators) => {
	      return (
	        isSatisfiable(thisComparators, options) &&
	        range.set.some((rangeComparators) => {
	          return (
	            isSatisfiable(rangeComparators, options) &&
	            thisComparators.every((thisComparator) => {
	              return rangeComparators.every((rangeComparator) => {
	                return thisComparator.intersects(rangeComparator, options)
	              })
	            })
	          )
	        })
	      )
	    })
	  }

	  // if ANY of the sets match ALL of its comparators, then pass
	  test (version) {
	    if (!version) {
	      return false
	    }

	    if (typeof version === 'string') {
	      try {
	        version = new SemVer(version, this.options);
	      } catch (er) {
	        return false
	      }
	    }

	    for (let i = 0; i < this.set.length; i++) {
	      if (testSet(this.set[i], version, this.options)) {
	        return true
	      }
	    }
	    return false
	  }
	}
	range = Range;

	const LRU = requireLruCache();
	const cache = new LRU({ max: 1000 });

	const parseOptions = parseOptions_1;
	const Comparator = requireComparator();
	const debug = debug_1;
	const SemVer = semver$3;
	const {
	  re,
	  t,
	  comparatorTrimReplace,
	  tildeTrimReplace,
	  caretTrimReplace
	} = re$3.exports;

	const isNullSet = c => c.value === '<0.0.0-0';
	const isAny = c => c.value === '';

	// take a set of comparators and determine whether there
	// exists a version which can satisfy it
	const isSatisfiable = (comparators, options) => {
	  let result = true;
	  const remainingComparators = comparators.slice();
	  let testComparator = remainingComparators.pop();

	  while (result && remainingComparators.length) {
	    result = remainingComparators.every((otherComparator) => {
	      return testComparator.intersects(otherComparator, options)
	    });

	    testComparator = remainingComparators.pop();
	  }

	  return result
	};

	// comprised of xranges, tildes, stars, and gtlt's at this point.
	// already replaced the hyphen ranges
	// turn into a set of JUST comparators.
	const parseComparator = (comp, options) => {
	  debug('comp', comp, options);
	  comp = replaceCarets(comp, options);
	  debug('caret', comp);
	  comp = replaceTildes(comp, options);
	  debug('tildes', comp);
	  comp = replaceXRanges(comp, options);
	  debug('xrange', comp);
	  comp = replaceStars(comp, options);
	  debug('stars', comp);
	  return comp
	};

	const isX = id => !id || id.toLowerCase() === 'x' || id === '*';

	// ~, ~> --> * (any, kinda silly)
	// ~2, ~2.x, ~2.x.x, ~>2, ~>2.x ~>2.x.x --> >=2.0.0 <3.0.0-0
	// ~2.0, ~2.0.x, ~>2.0, ~>2.0.x --> >=2.0.0 <2.1.0-0
	// ~1.2, ~1.2.x, ~>1.2, ~>1.2.x --> >=1.2.0 <1.3.0-0
	// ~1.2.3, ~>1.2.3 --> >=1.2.3 <1.3.0-0
	// ~1.2.0, ~>1.2.0 --> >=1.2.0 <1.3.0-0
	const replaceTildes = (comp, options) =>
	  comp.trim().split(/\s+/).map((comp) => {
	    return replaceTilde(comp, options)
	  }).join(' ');

	const replaceTilde = (comp, options) => {
	  const r = options.loose ? re[t.TILDELOOSE] : re[t.TILDE];
	  return comp.replace(r, (_, M, m, p, pr) => {
	    debug('tilde', comp, _, M, m, p, pr);
	    let ret;

	    if (isX(M)) {
	      ret = '';
	    } else if (isX(m)) {
	      ret = `>=${M}.0.0 <${+M + 1}.0.0-0`;
	    } else if (isX(p)) {
	      // ~1.2 == >=1.2.0 <1.3.0-0
	      ret = `>=${M}.${m}.0 <${M}.${+m + 1}.0-0`;
	    } else if (pr) {
	      debug('replaceTilde pr', pr);
	      ret = `>=${M}.${m}.${p}-${pr
	      } <${M}.${+m + 1}.0-0`;
	    } else {
	      // ~1.2.3 == >=1.2.3 <1.3.0-0
	      ret = `>=${M}.${m}.${p
	      } <${M}.${+m + 1}.0-0`;
	    }

	    debug('tilde return', ret);
	    return ret
	  })
	};

	// ^ --> * (any, kinda silly)
	// ^2, ^2.x, ^2.x.x --> >=2.0.0 <3.0.0-0
	// ^2.0, ^2.0.x --> >=2.0.0 <3.0.0-0
	// ^1.2, ^1.2.x --> >=1.2.0 <2.0.0-0
	// ^1.2.3 --> >=1.2.3 <2.0.0-0
	// ^1.2.0 --> >=1.2.0 <2.0.0-0
	const replaceCarets = (comp, options) =>
	  comp.trim().split(/\s+/).map((comp) => {
	    return replaceCaret(comp, options)
	  }).join(' ');

	const replaceCaret = (comp, options) => {
	  debug('caret', comp, options);
	  const r = options.loose ? re[t.CARETLOOSE] : re[t.CARET];
	  const z = options.includePrerelease ? '-0' : '';
	  return comp.replace(r, (_, M, m, p, pr) => {
	    debug('caret', comp, _, M, m, p, pr);
	    let ret;

	    if (isX(M)) {
	      ret = '';
	    } else if (isX(m)) {
	      ret = `>=${M}.0.0${z} <${+M + 1}.0.0-0`;
	    } else if (isX(p)) {
	      if (M === '0') {
	        ret = `>=${M}.${m}.0${z} <${M}.${+m + 1}.0-0`;
	      } else {
	        ret = `>=${M}.${m}.0${z} <${+M + 1}.0.0-0`;
	      }
	    } else if (pr) {
	      debug('replaceCaret pr', pr);
	      if (M === '0') {
	        if (m === '0') {
	          ret = `>=${M}.${m}.${p}-${pr
	          } <${M}.${m}.${+p + 1}-0`;
	        } else {
	          ret = `>=${M}.${m}.${p}-${pr
	          } <${M}.${+m + 1}.0-0`;
	        }
	      } else {
	        ret = `>=${M}.${m}.${p}-${pr
	        } <${+M + 1}.0.0-0`;
	      }
	    } else {
	      debug('no pr');
	      if (M === '0') {
	        if (m === '0') {
	          ret = `>=${M}.${m}.${p
	          }${z} <${M}.${m}.${+p + 1}-0`;
	        } else {
	          ret = `>=${M}.${m}.${p
	          }${z} <${M}.${+m + 1}.0-0`;
	        }
	      } else {
	        ret = `>=${M}.${m}.${p
	        } <${+M + 1}.0.0-0`;
	      }
	    }

	    debug('caret return', ret);
	    return ret
	  })
	};

	const replaceXRanges = (comp, options) => {
	  debug('replaceXRanges', comp, options);
	  return comp.split(/\s+/).map((comp) => {
	    return replaceXRange(comp, options)
	  }).join(' ')
	};

	const replaceXRange = (comp, options) => {
	  comp = comp.trim();
	  const r = options.loose ? re[t.XRANGELOOSE] : re[t.XRANGE];
	  return comp.replace(r, (ret, gtlt, M, m, p, pr) => {
	    debug('xRange', comp, ret, gtlt, M, m, p, pr);
	    const xM = isX(M);
	    const xm = xM || isX(m);
	    const xp = xm || isX(p);
	    const anyX = xp;

	    if (gtlt === '=' && anyX) {
	      gtlt = '';
	    }

	    // if we're including prereleases in the match, then we need
	    // to fix this to -0, the lowest possible prerelease value
	    pr = options.includePrerelease ? '-0' : '';

	    if (xM) {
	      if (gtlt === '>' || gtlt === '<') {
	        // nothing is allowed
	        ret = '<0.0.0-0';
	      } else {
	        // nothing is forbidden
	        ret = '*';
	      }
	    } else if (gtlt && anyX) {
	      // we know patch is an x, because we have any x at all.
	      // replace X with 0
	      if (xm) {
	        m = 0;
	      }
	      p = 0;

	      if (gtlt === '>') {
	        // >1 => >=2.0.0
	        // >1.2 => >=1.3.0
	        gtlt = '>=';
	        if (xm) {
	          M = +M + 1;
	          m = 0;
	          p = 0;
	        } else {
	          m = +m + 1;
	          p = 0;
	        }
	      } else if (gtlt === '<=') {
	        // <=0.7.x is actually <0.8.0, since any 0.7.x should
	        // pass.  Similarly, <=7.x is actually <8.0.0, etc.
	        gtlt = '<';
	        if (xm) {
	          M = +M + 1;
	        } else {
	          m = +m + 1;
	        }
	      }

	      if (gtlt === '<')
	        pr = '-0';

	      ret = `${gtlt + M}.${m}.${p}${pr}`;
	    } else if (xm) {
	      ret = `>=${M}.0.0${pr} <${+M + 1}.0.0-0`;
	    } else if (xp) {
	      ret = `>=${M}.${m}.0${pr
	      } <${M}.${+m + 1}.0-0`;
	    }

	    debug('xRange return', ret);

	    return ret
	  })
	};

	// Because * is AND-ed with everything else in the comparator,
	// and '' means "any version", just remove the *s entirely.
	const replaceStars = (comp, options) => {
	  debug('replaceStars', comp, options);
	  // Looseness is ignored here.  star is always as loose as it gets!
	  return comp.trim().replace(re[t.STAR], '')
	};

	const replaceGTE0 = (comp, options) => {
	  debug('replaceGTE0', comp, options);
	  return comp.trim()
	    .replace(re[options.includePrerelease ? t.GTE0PRE : t.GTE0], '')
	};

	// This function is passed to string.replace(re[t.HYPHENRANGE])
	// M, m, patch, prerelease, build
	// 1.2 - 3.4.5 => >=1.2.0 <=3.4.5
	// 1.2.3 - 3.4 => >=1.2.0 <3.5.0-0 Any 3.4.x will do
	// 1.2 - 3.4 => >=1.2.0 <3.5.0-0
	const hyphenReplace = incPr => ($0,
	  from, fM, fm, fp, fpr, fb,
	  to, tM, tm, tp, tpr, tb) => {
	  if (isX(fM)) {
	    from = '';
	  } else if (isX(fm)) {
	    from = `>=${fM}.0.0${incPr ? '-0' : ''}`;
	  } else if (isX(fp)) {
	    from = `>=${fM}.${fm}.0${incPr ? '-0' : ''}`;
	  } else if (fpr) {
	    from = `>=${from}`;
	  } else {
	    from = `>=${from}${incPr ? '-0' : ''}`;
	  }

	  if (isX(tM)) {
	    to = '';
	  } else if (isX(tm)) {
	    to = `<${+tM + 1}.0.0-0`;
	  } else if (isX(tp)) {
	    to = `<${tM}.${+tm + 1}.0-0`;
	  } else if (tpr) {
	    to = `<=${tM}.${tm}.${tp}-${tpr}`;
	  } else if (incPr) {
	    to = `<${tM}.${tm}.${+tp + 1}-0`;
	  } else {
	    to = `<=${to}`;
	  }

	  return (`${from} ${to}`).trim()
	};

	const testSet = (set, version, options) => {
	  for (let i = 0; i < set.length; i++) {
	    if (!set[i].test(version)) {
	      return false
	    }
	  }

	  if (version.prerelease.length && !options.includePrerelease) {
	    // Find the set of versions that are allowed to have prereleases
	    // For example, ^1.2.3-pr.1 desugars to >=1.2.3-pr.1 <2.0.0
	    // That should allow `1.2.3-pr.2` to pass.
	    // However, `1.2.4-alpha.notready` should NOT be allowed,
	    // even though it's within the range set by the comparators.
	    for (let i = 0; i < set.length; i++) {
	      debug(set[i].semver);
	      if (set[i].semver === Comparator.ANY) {
	        continue
	      }

	      if (set[i].semver.prerelease.length > 0) {
	        const allowed = set[i].semver;
	        if (allowed.major === version.major &&
	            allowed.minor === version.minor &&
	            allowed.patch === version.patch) {
	          return true
	        }
	      }
	    }

	    // Version has a -pre, but it's not one of the ones we like.
	    return false
	  }

	  return true
	};
	return range;
}

var comparator;
var hasRequiredComparator;

function requireComparator () {
	if (hasRequiredComparator) return comparator;
	hasRequiredComparator = 1;
	const ANY = Symbol('SemVer ANY');
	// hoisted class for cyclic dependency
	class Comparator {
	  static get ANY () {
	    return ANY
	  }
	  constructor (comp, options) {
	    options = parseOptions(options);

	    if (comp instanceof Comparator) {
	      if (comp.loose === !!options.loose) {
	        return comp
	      } else {
	        comp = comp.value;
	      }
	    }

	    debug('comparator', comp, options);
	    this.options = options;
	    this.loose = !!options.loose;
	    this.parse(comp);

	    if (this.semver === ANY) {
	      this.value = '';
	    } else {
	      this.value = this.operator + this.semver.version;
	    }

	    debug('comp', this);
	  }

	  parse (comp) {
	    const r = this.options.loose ? re[t.COMPARATORLOOSE] : re[t.COMPARATOR];
	    const m = comp.match(r);

	    if (!m) {
	      throw new TypeError(`Invalid comparator: ${comp}`)
	    }

	    this.operator = m[1] !== undefined ? m[1] : '';
	    if (this.operator === '=') {
	      this.operator = '';
	    }

	    // if it literally is just '>' or '' then allow anything.
	    if (!m[2]) {
	      this.semver = ANY;
	    } else {
	      this.semver = new SemVer(m[2], this.options.loose);
	    }
	  }

	  toString () {
	    return this.value
	  }

	  test (version) {
	    debug('Comparator.test', version, this.options.loose);

	    if (this.semver === ANY || version === ANY) {
	      return true
	    }

	    if (typeof version === 'string') {
	      try {
	        version = new SemVer(version, this.options);
	      } catch (er) {
	        return false
	      }
	    }

	    return cmp(version, this.operator, this.semver, this.options)
	  }

	  intersects (comp, options) {
	    if (!(comp instanceof Comparator)) {
	      throw new TypeError('a Comparator is required')
	    }

	    if (!options || typeof options !== 'object') {
	      options = {
	        loose: !!options,
	        includePrerelease: false
	      };
	    }

	    if (this.operator === '') {
	      if (this.value === '') {
	        return true
	      }
	      return new Range(comp.value, options).test(this.value)
	    } else if (comp.operator === '') {
	      if (comp.value === '') {
	        return true
	      }
	      return new Range(this.value, options).test(comp.semver)
	    }

	    const sameDirectionIncreasing =
	      (this.operator === '>=' || this.operator === '>') &&
	      (comp.operator === '>=' || comp.operator === '>');
	    const sameDirectionDecreasing =
	      (this.operator === '<=' || this.operator === '<') &&
	      (comp.operator === '<=' || comp.operator === '<');
	    const sameSemVer = this.semver.version === comp.semver.version;
	    const differentDirectionsInclusive =
	      (this.operator === '>=' || this.operator === '<=') &&
	      (comp.operator === '>=' || comp.operator === '<=');
	    const oppositeDirectionsLessThan =
	      cmp(this.semver, '<', comp.semver, options) &&
	      (this.operator === '>=' || this.operator === '>') &&
	        (comp.operator === '<=' || comp.operator === '<');
	    const oppositeDirectionsGreaterThan =
	      cmp(this.semver, '>', comp.semver, options) &&
	      (this.operator === '<=' || this.operator === '<') &&
	        (comp.operator === '>=' || comp.operator === '>');

	    return (
	      sameDirectionIncreasing ||
	      sameDirectionDecreasing ||
	      (sameSemVer && differentDirectionsInclusive) ||
	      oppositeDirectionsLessThan ||
	      oppositeDirectionsGreaterThan
	    )
	  }
	}

	comparator = Comparator;

	const parseOptions = parseOptions_1;
	const {re, t} = re$3.exports;
	const cmp = cmp_1;
	const debug = debug_1;
	const SemVer = semver$3;
	const Range = requireRange();
	return comparator;
}

const Range$8 = requireRange();
const satisfies$3 = (version, range, options) => {
  try {
    range = new Range$8(range, options);
  } catch (er) {
    return false
  }
  return range.test(version)
};
var satisfies_1 = satisfies$3;

const Range$7 = requireRange();

// Mostly just for testing and legacy API reasons
const toComparators = (range, options) =>
  new Range$7(range, options).set
    .map(comp => comp.map(c => c.value).join(' ').trim().split(' '));

var toComparators_1 = toComparators;

const SemVer$3 = semver$3;
const Range$6 = requireRange();

const maxSatisfying = (versions, range, options) => {
  let max = null;
  let maxSV = null;
  let rangeObj = null;
  try {
    rangeObj = new Range$6(range, options);
  } catch (er) {
    return null
  }
  versions.forEach((v) => {
    if (rangeObj.test(v)) {
      // satisfies(v, range, options)
      if (!max || maxSV.compare(v) === -1) {
        // compare(max, v, true)
        max = v;
        maxSV = new SemVer$3(max, options);
      }
    }
  });
  return max
};
var maxSatisfying_1 = maxSatisfying;

const SemVer$2 = semver$3;
const Range$5 = requireRange();
const minSatisfying = (versions, range, options) => {
  let min = null;
  let minSV = null;
  let rangeObj = null;
  try {
    rangeObj = new Range$5(range, options);
  } catch (er) {
    return null
  }
  versions.forEach((v) => {
    if (rangeObj.test(v)) {
      // satisfies(v, range, options)
      if (!min || minSV.compare(v) === 1) {
        // compare(min, v, true)
        min = v;
        minSV = new SemVer$2(min, options);
      }
    }
  });
  return min
};
var minSatisfying_1 = minSatisfying;

const SemVer$1 = semver$3;
const Range$4 = requireRange();
const gt$1 = gt_1;

const minVersion = (range, loose) => {
  range = new Range$4(range, loose);

  let minver = new SemVer$1('0.0.0');
  if (range.test(minver)) {
    return minver
  }

  minver = new SemVer$1('0.0.0-0');
  if (range.test(minver)) {
    return minver
  }

  minver = null;
  for (let i = 0; i < range.set.length; ++i) {
    const comparators = range.set[i];

    let setMin = null;
    comparators.forEach((comparator) => {
      // Clone to avoid manipulating the comparator's semver object.
      const compver = new SemVer$1(comparator.semver.version);
      switch (comparator.operator) {
        case '>':
          if (compver.prerelease.length === 0) {
            compver.patch++;
          } else {
            compver.prerelease.push(0);
          }
          compver.raw = compver.format();
          /* fallthrough */
        case '':
        case '>=':
          if (!setMin || gt$1(compver, setMin)) {
            setMin = compver;
          }
          break
        case '<':
        case '<=':
          /* Ignore maximum versions */
          break
        /* istanbul ignore next */
        default:
          throw new Error(`Unexpected operation: ${comparator.operator}`)
      }
    });
    if (setMin && (!minver || gt$1(minver, setMin)))
      minver = setMin;
  }

  if (minver && range.test(minver)) {
    return minver
  }

  return null
};
var minVersion_1 = minVersion;

const Range$3 = requireRange();
const validRange = (range, options) => {
  try {
    // Return '*' instead of '' so that truthiness works.
    // This will throw if it's invalid anyway
    return new Range$3(range, options).range || '*'
  } catch (er) {
    return null
  }
};
var valid = validRange;

const SemVer = semver$3;
const Comparator$1 = requireComparator();
const {ANY: ANY$1} = Comparator$1;
const Range$2 = requireRange();
const satisfies$2 = satisfies_1;
const gt = gt_1;
const lt = lt_1;
const lte = lte_1;
const gte = gte_1;

const outside$2 = (version, range, hilo, options) => {
  version = new SemVer(version, options);
  range = new Range$2(range, options);

  let gtfn, ltefn, ltfn, comp, ecomp;
  switch (hilo) {
    case '>':
      gtfn = gt;
      ltefn = lte;
      ltfn = lt;
      comp = '>';
      ecomp = '>=';
      break
    case '<':
      gtfn = lt;
      ltefn = gte;
      ltfn = gt;
      comp = '<';
      ecomp = '<=';
      break
    default:
      throw new TypeError('Must provide a hilo val of "<" or ">"')
  }

  // If it satisfies the range it is not outside
  if (satisfies$2(version, range, options)) {
    return false
  }

  // From now on, variable terms are as if we're in "gtr" mode.
  // but note that everything is flipped for the "ltr" function.

  for (let i = 0; i < range.set.length; ++i) {
    const comparators = range.set[i];

    let high = null;
    let low = null;

    comparators.forEach((comparator) => {
      if (comparator.semver === ANY$1) {
        comparator = new Comparator$1('>=0.0.0');
      }
      high = high || comparator;
      low = low || comparator;
      if (gtfn(comparator.semver, high.semver, options)) {
        high = comparator;
      } else if (ltfn(comparator.semver, low.semver, options)) {
        low = comparator;
      }
    });

    // If the edge version comparator has a operator then our version
    // isn't outside it
    if (high.operator === comp || high.operator === ecomp) {
      return false
    }

    // If the lowest version comparator has an operator and our version
    // is less than it then it isn't higher than the range
    if ((!low.operator || low.operator === comp) &&
        ltefn(version, low.semver)) {
      return false
    } else if (low.operator === ecomp && ltfn(version, low.semver)) {
      return false
    }
  }
  return true
};

var outside_1 = outside$2;

// Determine if version is greater than all the versions possible in the range.
const outside$1 = outside_1;
const gtr = (version, range, options) => outside$1(version, range, '>', options);
var gtr_1 = gtr;

const outside = outside_1;
// Determine if version is less than all the versions possible in the range
const ltr = (version, range, options) => outside(version, range, '<', options);
var ltr_1 = ltr;

const Range$1 = requireRange();
const intersects = (r1, r2, options) => {
  r1 = new Range$1(r1, options);
  r2 = new Range$1(r2, options);
  return r1.intersects(r2)
};
var intersects_1 = intersects;

// given a set of versions and a range, create a "simplified" range
// that includes the same versions that the original range does
// If the original range is shorter than the simplified one, return that.
const satisfies$1 = satisfies_1;
const compare$1 = compare_1;
var simplify = (versions, range, options) => {
  const set = [];
  let min = null;
  let prev = null;
  const v = versions.sort((a, b) => compare$1(a, b, options));
  for (const version of v) {
    const included = satisfies$1(version, range, options);
    if (included) {
      prev = version;
      if (!min)
        min = version;
    } else {
      if (prev) {
        set.push([min, prev]);
      }
      prev = null;
      min = null;
    }
  }
  if (min)
    set.push([min, null]);

  const ranges = [];
  for (const [min, max] of set) {
    if (min === max)
      ranges.push(min);
    else if (!max && min === v[0])
      ranges.push('*');
    else if (!max)
      ranges.push(`>=${min}`);
    else if (min === v[0])
      ranges.push(`<=${max}`);
    else
      ranges.push(`${min} - ${max}`);
  }
  const simplified = ranges.join(' || ');
  const original = typeof range.raw === 'string' ? range.raw : String(range);
  return simplified.length < original.length ? simplified : range
};

const Range = requireRange();
const Comparator = requireComparator();
const { ANY } = Comparator;
const satisfies = satisfies_1;
const compare = compare_1;

// Complex range `r1 || r2 || ...` is a subset of `R1 || R2 || ...` iff:
// - Every simple range `r1, r2, ...` is a null set, OR
// - Every simple range `r1, r2, ...` which is not a null set is a subset of
//   some `R1, R2, ...`
//
// Simple range `c1 c2 ...` is a subset of simple range `C1 C2 ...` iff:
// - If c is only the ANY comparator
//   - If C is only the ANY comparator, return true
//   - Else if in prerelease mode, return false
//   - else replace c with `[>=0.0.0]`
// - If C is only the ANY comparator
//   - if in prerelease mode, return true
//   - else replace C with `[>=0.0.0]`
// - Let EQ be the set of = comparators in c
// - If EQ is more than one, return true (null set)
// - Let GT be the highest > or >= comparator in c
// - Let LT be the lowest < or <= comparator in c
// - If GT and LT, and GT.semver > LT.semver, return true (null set)
// - If any C is a = range, and GT or LT are set, return false
// - If EQ
//   - If GT, and EQ does not satisfy GT, return true (null set)
//   - If LT, and EQ does not satisfy LT, return true (null set)
//   - If EQ satisfies every C, return true
//   - Else return false
// - If GT
//   - If GT.semver is lower than any > or >= comp in C, return false
//   - If GT is >=, and GT.semver does not satisfy every C, return false
//   - If GT.semver has a prerelease, and not in prerelease mode
//     - If no C has a prerelease and the GT.semver tuple, return false
// - If LT
//   - If LT.semver is greater than any < or <= comp in C, return false
//   - If LT is <=, and LT.semver does not satisfy every C, return false
//   - If GT.semver has a prerelease, and not in prerelease mode
//     - If no C has a prerelease and the LT.semver tuple, return false
// - Else return true

const subset = (sub, dom, options = {}) => {
  if (sub === dom)
    return true

  sub = new Range(sub, options);
  dom = new Range(dom, options);
  let sawNonNull = false;

  OUTER: for (const simpleSub of sub.set) {
    for (const simpleDom of dom.set) {
      const isSub = simpleSubset(simpleSub, simpleDom, options);
      sawNonNull = sawNonNull || isSub !== null;
      if (isSub)
        continue OUTER
    }
    // the null set is a subset of everything, but null simple ranges in
    // a complex range should be ignored.  so if we saw a non-null range,
    // then we know this isn't a subset, but if EVERY simple range was null,
    // then it is a subset.
    if (sawNonNull)
      return false
  }
  return true
};

const simpleSubset = (sub, dom, options) => {
  if (sub === dom)
    return true

  if (sub.length === 1 && sub[0].semver === ANY) {
    if (dom.length === 1 && dom[0].semver === ANY)
      return true
    else if (options.includePrerelease)
      sub = [ new Comparator('>=0.0.0-0') ];
    else
      sub = [ new Comparator('>=0.0.0') ];
  }

  if (dom.length === 1 && dom[0].semver === ANY) {
    if (options.includePrerelease)
      return true
    else
      dom = [ new Comparator('>=0.0.0') ];
  }

  const eqSet = new Set();
  let gt, lt;
  for (const c of sub) {
    if (c.operator === '>' || c.operator === '>=')
      gt = higherGT(gt, c, options);
    else if (c.operator === '<' || c.operator === '<=')
      lt = lowerLT(lt, c, options);
    else
      eqSet.add(c.semver);
  }

  if (eqSet.size > 1)
    return null

  let gtltComp;
  if (gt && lt) {
    gtltComp = compare(gt.semver, lt.semver, options);
    if (gtltComp > 0)
      return null
    else if (gtltComp === 0 && (gt.operator !== '>=' || lt.operator !== '<='))
      return null
  }

  // will iterate one or zero times
  for (const eq of eqSet) {
    if (gt && !satisfies(eq, String(gt), options))
      return null

    if (lt && !satisfies(eq, String(lt), options))
      return null

    for (const c of dom) {
      if (!satisfies(eq, String(c), options))
        return false
    }

    return true
  }

  let higher, lower;
  let hasDomLT, hasDomGT;
  // if the subset has a prerelease, we need a comparator in the superset
  // with the same tuple and a prerelease, or it's not a subset
  let needDomLTPre = lt &&
    !options.includePrerelease &&
    lt.semver.prerelease.length ? lt.semver : false;
  let needDomGTPre = gt &&
    !options.includePrerelease &&
    gt.semver.prerelease.length ? gt.semver : false;
  // exception: <1.2.3-0 is the same as <1.2.3
  if (needDomLTPre && needDomLTPre.prerelease.length === 1 &&
      lt.operator === '<' && needDomLTPre.prerelease[0] === 0) {
    needDomLTPre = false;
  }

  for (const c of dom) {
    hasDomGT = hasDomGT || c.operator === '>' || c.operator === '>=';
    hasDomLT = hasDomLT || c.operator === '<' || c.operator === '<=';
    if (gt) {
      if (needDomGTPre) {
        if (c.semver.prerelease && c.semver.prerelease.length &&
            c.semver.major === needDomGTPre.major &&
            c.semver.minor === needDomGTPre.minor &&
            c.semver.patch === needDomGTPre.patch) {
          needDomGTPre = false;
        }
      }
      if (c.operator === '>' || c.operator === '>=') {
        higher = higherGT(gt, c, options);
        if (higher === c && higher !== gt)
          return false
      } else if (gt.operator === '>=' && !satisfies(gt.semver, String(c), options))
        return false
    }
    if (lt) {
      if (needDomLTPre) {
        if (c.semver.prerelease && c.semver.prerelease.length &&
            c.semver.major === needDomLTPre.major &&
            c.semver.minor === needDomLTPre.minor &&
            c.semver.patch === needDomLTPre.patch) {
          needDomLTPre = false;
        }
      }
      if (c.operator === '<' || c.operator === '<=') {
        lower = lowerLT(lt, c, options);
        if (lower === c && lower !== lt)
          return false
      } else if (lt.operator === '<=' && !satisfies(lt.semver, String(c), options))
        return false
    }
    if (!c.operator && (lt || gt) && gtltComp !== 0)
      return false
  }

  // if there was a < or >, and nothing in the dom, then must be false
  // UNLESS it was limited by another range in the other direction.
  // Eg, >1.0.0 <1.0.1 is still a subset of <2.0.0
  if (gt && hasDomLT && !lt && gtltComp !== 0)
    return false

  if (lt && hasDomGT && !gt && gtltComp !== 0)
    return false

  // we needed a prerelease range in a specific tuple, but didn't get one
  // then this isn't a subset.  eg >=1.2.3-pre is not a subset of >=1.0.0,
  // because it includes prereleases in the 1.2.3 tuple
  if (needDomGTPre || needDomLTPre)
    return false

  return true
};

// >=1.2.3 is lower than >1.2.3
const higherGT = (a, b, options) => {
  if (!a)
    return b
  const comp = compare(a.semver, b.semver, options);
  return comp > 0 ? a
    : comp < 0 ? b
    : b.operator === '>' && a.operator === '>=' ? b
    : a
};

// <=1.2.3 is higher than <1.2.3
const lowerLT = (a, b, options) => {
  if (!a)
    return b
  const comp = compare(a.semver, b.semver, options);
  return comp < 0 ? a
    : comp > 0 ? b
    : b.operator === '<' && a.operator === '<=' ? b
    : a
};

var subset_1 = subset;

// just pre-load all the stuff that index.js lazily exports
const internalRe = re$3.exports;
var semver$2 = {
  re: internalRe.re,
  src: internalRe.src,
  tokens: internalRe.t,
  SEMVER_SPEC_VERSION: constants.SEMVER_SPEC_VERSION,
  SemVer: semver$3,
  compareIdentifiers: identifiers.compareIdentifiers,
  rcompareIdentifiers: identifiers.rcompareIdentifiers,
  parse: parse_1$1,
  valid: valid_1,
  clean: clean_1,
  inc: inc_1,
  diff: diff_1,
  major: major_1,
  minor: minor_1,
  patch: patch_1,
  prerelease: prerelease_1,
  compare: compare_1,
  rcompare: rcompare_1,
  compareLoose: compareLoose_1,
  compareBuild: compareBuild_1,
  sort: sort_1,
  rsort: rsort_1,
  gt: gt_1,
  lt: lt_1,
  eq: eq_1,
  neq: neq_1,
  gte: gte_1,
  lte: lte_1,
  cmp: cmp_1,
  coerce: coerce_1,
  Comparator: requireComparator(),
  Range: requireRange(),
  satisfies: satisfies_1,
  toComparators: toComparators_1,
  maxSatisfying: maxSatisfying_1,
  minSatisfying: minSatisfying_1,
  minVersion: minVersion_1,
  validRange: valid,
  outside: outside_1,
  gtr: gtr_1,
  ltr: ltr_1,
  intersects: intersects_1,
  simplifyRange: simplify,
  subset: subset_1,
};

var execa$1 = {exports: {}};

var crossSpawn$1 = {exports: {}};

const isWindows = process.platform === 'win32' ||
    process.env.OSTYPE === 'cygwin' ||
    process.env.OSTYPE === 'msys';

const path$3 = path__default["default"];
const COLON = isWindows ? ';' : ':';
const isexe = isexe_1;

const getNotFoundError = (cmd) =>
  Object.assign(new Error(`not found: ${cmd}`), { code: 'ENOENT' });

const getPathInfo = (cmd, opt) => {
  const colon = opt.colon || COLON;

  // If it has a slash, then we don't bother searching the pathenv.
  // just check the file itself, and that's it.
  const pathEnv = cmd.match(/\//) || isWindows && cmd.match(/\\/) ? ['']
    : (
      [
        // windows always checks the cwd first
        ...(isWindows ? [process.cwd()] : []),
        ...(opt.path || process.env.PATH ||
          /* istanbul ignore next: very unusual */ '').split(colon),
      ]
    );
  const pathExtExe = isWindows
    ? opt.pathExt || process.env.PATHEXT || '.EXE;.CMD;.BAT;.COM'
    : '';
  const pathExt = isWindows ? pathExtExe.split(colon) : [''];

  if (isWindows) {
    if (cmd.indexOf('.') !== -1 && pathExt[0] !== '')
      pathExt.unshift('');
  }

  return {
    pathEnv,
    pathExt,
    pathExtExe,
  }
};

const which$1 = (cmd, opt, cb) => {
  if (typeof opt === 'function') {
    cb = opt;
    opt = {};
  }
  if (!opt)
    opt = {};

  const { pathEnv, pathExt, pathExtExe } = getPathInfo(cmd, opt);
  const found = [];

  const step = i => new Promise((resolve, reject) => {
    if (i === pathEnv.length)
      return opt.all && found.length ? resolve(found)
        : reject(getNotFoundError(cmd))

    const ppRaw = pathEnv[i];
    const pathPart = /^".*"$/.test(ppRaw) ? ppRaw.slice(1, -1) : ppRaw;

    const pCmd = path$3.join(pathPart, cmd);
    const p = !pathPart && /^\.[\\\/]/.test(cmd) ? cmd.slice(0, 2) + pCmd
      : pCmd;

    resolve(subStep(p, i, 0));
  });

  const subStep = (p, i, ii) => new Promise((resolve, reject) => {
    if (ii === pathExt.length)
      return resolve(step(i + 1))
    const ext = pathExt[ii];
    isexe(p + ext, { pathExt: pathExtExe }, (er, is) => {
      if (!er && is) {
        if (opt.all)
          found.push(p + ext);
        else
          return resolve(p + ext)
      }
      return resolve(subStep(p, i, ii + 1))
    });
  });

  return cb ? step(0).then(res => cb(null, res), cb) : step(0)
};

const whichSync = (cmd, opt) => {
  opt = opt || {};

  const { pathEnv, pathExt, pathExtExe } = getPathInfo(cmd, opt);
  const found = [];

  for (let i = 0; i < pathEnv.length; i ++) {
    const ppRaw = pathEnv[i];
    const pathPart = /^".*"$/.test(ppRaw) ? ppRaw.slice(1, -1) : ppRaw;

    const pCmd = path$3.join(pathPart, cmd);
    const p = !pathPart && /^\.[\\\/]/.test(cmd) ? cmd.slice(0, 2) + pCmd
      : pCmd;

    for (let j = 0; j < pathExt.length; j ++) {
      const cur = p + pathExt[j];
      try {
        const is = isexe.sync(cur, { pathExt: pathExtExe });
        if (is) {
          if (opt.all)
            found.push(cur);
          else
            return cur
        }
      } catch (ex) {}
    }
  }

  if (opt.all && found.length)
    return found

  if (opt.nothrow)
    return null

  throw getNotFoundError(cmd)
};

var which_1 = which$1;
which$1.sync = whichSync;

var pathKey$1 = {exports: {}};

const pathKey = (options = {}) => {
	const environment = options.env || process.env;
	const platform = options.platform || process.platform;

	if (platform !== 'win32') {
		return 'PATH';
	}

	return Object.keys(environment).reverse().find(key => key.toUpperCase() === 'PATH') || 'Path';
};

pathKey$1.exports = pathKey;
// TODO: Remove this for the next major release
pathKey$1.exports.default = pathKey;

const path$2 = path__default["default"];
const which = which_1;
const getPathKey = pathKey$1.exports;

function resolveCommandAttempt(parsed, withoutPathExt) {
    const env = parsed.options.env || process.env;
    const cwd = process.cwd();
    const hasCustomCwd = parsed.options.cwd != null;
    // Worker threads do not have process.chdir()
    const shouldSwitchCwd = hasCustomCwd && process.chdir !== undefined && !process.chdir.disabled;

    // If a custom `cwd` was specified, we need to change the process cwd
    // because `which` will do stat calls but does not support a custom cwd
    if (shouldSwitchCwd) {
        try {
            process.chdir(parsed.options.cwd);
        } catch (err) {
            /* Empty */
        }
    }

    let resolved;

    try {
        resolved = which.sync(parsed.command, {
            path: env[getPathKey({ env })],
            pathExt: withoutPathExt ? path$2.delimiter : undefined,
        });
    } catch (e) {
        /* Empty */
    } finally {
        if (shouldSwitchCwd) {
            process.chdir(cwd);
        }
    }

    // If we successfully resolved, ensure that an absolute path is returned
    // Note that when a custom `cwd` was used, we need to resolve to an absolute path based on it
    if (resolved) {
        resolved = path$2.resolve(hasCustomCwd ? parsed.options.cwd : '', resolved);
    }

    return resolved;
}

function resolveCommand$1(parsed) {
    return resolveCommandAttempt(parsed) || resolveCommandAttempt(parsed, true);
}

var resolveCommand_1 = resolveCommand$1;

var _escape = {};

// See http://www.robvanderwoude.com/escapechars.php
const metaCharsRegExp = /([()\][%!^"`<>&|;, *?])/g;

function escapeCommand(arg) {
    // Escape meta chars
    arg = arg.replace(metaCharsRegExp, '^$1');

    return arg;
}

function escapeArgument(arg, doubleEscapeMetaChars) {
    // Convert to string
    arg = `${arg}`;

    // Algorithm below is based on https://qntm.org/cmd

    // Sequence of backslashes followed by a double quote:
    // double up all the backslashes and escape the double quote
    arg = arg.replace(/(\\*)"/g, '$1$1\\"');

    // Sequence of backslashes followed by the end of the string
    // (which will become a double quote later):
    // double up all the backslashes
    arg = arg.replace(/(\\*)$/, '$1$1');

    // All other backslashes occur literally

    // Quote the whole thing:
    arg = `"${arg}"`;

    // Escape meta chars
    arg = arg.replace(metaCharsRegExp, '^$1');

    // Double escape meta chars if necessary
    if (doubleEscapeMetaChars) {
        arg = arg.replace(metaCharsRegExp, '^$1');
    }

    return arg;
}

_escape.command = escapeCommand;
_escape.argument = escapeArgument;

var shebangRegex$1 = /^#!(.*)/;

const shebangRegex = shebangRegex$1;

var shebangCommand$1 = (string = '') => {
	const match = string.match(shebangRegex);

	if (!match) {
		return null;
	}

	const [path, argument] = match[0].replace(/#! ?/, '').split(' ');
	const binary = path.split('/').pop();

	if (binary === 'env') {
		return argument;
	}

	return argument ? `${binary} ${argument}` : binary;
};

const fs = require$$0__default$2["default"];
const shebangCommand = shebangCommand$1;

function readShebang$1(command) {
    // Read the first 150 bytes from the file
    const size = 150;
    const buffer = Buffer.alloc(size);

    let fd;

    try {
        fd = fs.openSync(command, 'r');
        fs.readSync(fd, buffer, 0, size, 0);
        fs.closeSync(fd);
    } catch (e) { /* Empty */ }

    // Attempt to extract shebang (null is returned if not a shebang)
    return shebangCommand(buffer.toString());
}

var readShebang_1 = readShebang$1;

const path$1 = path__default["default"];
const resolveCommand = resolveCommand_1;
const escape = _escape;
const readShebang = readShebang_1;

const isWin$1 = process.platform === 'win32';
const isExecutableRegExp = /\.(?:com|exe)$/i;
const isCmdShimRegExp = /node_modules[\\/].bin[\\/][^\\/]+\.cmd$/i;

function detectShebang(parsed) {
    parsed.file = resolveCommand(parsed);

    const shebang = parsed.file && readShebang(parsed.file);

    if (shebang) {
        parsed.args.unshift(parsed.file);
        parsed.command = shebang;

        return resolveCommand(parsed);
    }

    return parsed.file;
}

function parseNonShell(parsed) {
    if (!isWin$1) {
        return parsed;
    }

    // Detect & add support for shebangs
    const commandFile = detectShebang(parsed);

    // We don't need a shell if the command filename is an executable
    const needsShell = !isExecutableRegExp.test(commandFile);

    // If a shell is required, use cmd.exe and take care of escaping everything correctly
    // Note that `forceShell` is an hidden option used only in tests
    if (parsed.options.forceShell || needsShell) {
        // Need to double escape meta chars if the command is a cmd-shim located in `node_modules/.bin/`
        // The cmd-shim simply calls execute the package bin file with NodeJS, proxying any argument
        // Because the escape of metachars with ^ gets interpreted when the cmd.exe is first called,
        // we need to double escape them
        const needsDoubleEscapeMetaChars = isCmdShimRegExp.test(commandFile);

        // Normalize posix paths into OS compatible paths (e.g.: foo/bar -> foo\bar)
        // This is necessary otherwise it will always fail with ENOENT in those cases
        parsed.command = path$1.normalize(parsed.command);

        // Escape command & arguments
        parsed.command = escape.command(parsed.command);
        parsed.args = parsed.args.map((arg) => escape.argument(arg, needsDoubleEscapeMetaChars));

        const shellCommand = [parsed.command].concat(parsed.args).join(' ');

        parsed.args = ['/d', '/s', '/c', `"${shellCommand}"`];
        parsed.command = process.env.comspec || 'cmd.exe';
        parsed.options.windowsVerbatimArguments = true; // Tell node's spawn that the arguments are already escaped
    }

    return parsed;
}

function parse$2(command, args, options) {
    // Normalize arguments, similar to nodejs
    if (args && !Array.isArray(args)) {
        options = args;
        args = null;
    }

    args = args ? args.slice(0) : []; // Clone array to avoid changing the original
    options = Object.assign({}, options); // Clone object to avoid changing the original

    // Build our parsed object
    const parsed = {
        command,
        args,
        options,
        file: undefined,
        original: {
            command,
            args,
        },
    };

    // Delegate further parsing to shell or non-shell
    return options.shell ? parsed : parseNonShell(parsed);
}

var parse_1 = parse$2;

const isWin = process.platform === 'win32';

function notFoundError(original, syscall) {
    return Object.assign(new Error(`${syscall} ${original.command} ENOENT`), {
        code: 'ENOENT',
        errno: 'ENOENT',
        syscall: `${syscall} ${original.command}`,
        path: original.command,
        spawnargs: original.args,
    });
}

function hookChildProcess(cp, parsed) {
    if (!isWin) {
        return;
    }

    const originalEmit = cp.emit;

    cp.emit = function (name, arg1) {
        // If emitting "exit" event and exit code is 1, we need to check if
        // the command exists and emit an "error" instead
        // See https://github.com/IndigoUnited/node-cross-spawn/issues/16
        if (name === 'exit') {
            const err = verifyENOENT(arg1, parsed);

            if (err) {
                return originalEmit.call(cp, 'error', err);
            }
        }

        return originalEmit.apply(cp, arguments); // eslint-disable-line prefer-rest-params
    };
}

function verifyENOENT(status, parsed) {
    if (isWin && status === 1 && !parsed.file) {
        return notFoundError(parsed.original, 'spawn');
    }

    return null;
}

function verifyENOENTSync(status, parsed) {
    if (isWin && status === 1 && !parsed.file) {
        return notFoundError(parsed.original, 'spawnSync');
    }

    return null;
}

var enoent$1 = {
    hookChildProcess,
    verifyENOENT,
    verifyENOENTSync,
    notFoundError,
};

const cp = require$$0__default$9["default"];
const parse$1 = parse_1;
const enoent = enoent$1;

function spawn(command, args, options) {
    // Parse the arguments
    const parsed = parse$1(command, args, options);

    // Spawn the child process
    const spawned = cp.spawn(parsed.command, parsed.args, parsed.options);

    // Hook into child process "exit" event to emit an error if the command
    // does not exists, see: https://github.com/IndigoUnited/node-cross-spawn/issues/16
    enoent.hookChildProcess(spawned, parsed);

    return spawned;
}

function spawnSync(command, args, options) {
    // Parse the arguments
    const parsed = parse$1(command, args, options);

    // Spawn the child process
    const result = cp.spawnSync(parsed.command, parsed.args, parsed.options);

    // Analyze if the command does not exist, see: https://github.com/IndigoUnited/node-cross-spawn/issues/16
    result.error = result.error || enoent.verifyENOENTSync(result.status, parsed);

    return result;
}

crossSpawn$1.exports = spawn;
crossSpawn$1.exports.spawn = spawn;
crossSpawn$1.exports.sync = spawnSync;

crossSpawn$1.exports._parse = parse$1;
crossSpawn$1.exports._enoent = enoent;

var stripFinalNewline$1 = input => {
	const LF = typeof input === 'string' ? '\n' : '\n'.charCodeAt();
	const CR = typeof input === 'string' ? '\r' : '\r'.charCodeAt();

	if (input[input.length - 1] === LF) {
		input = input.slice(0, input.length - 1);
	}

	if (input[input.length - 1] === CR) {
		input = input.slice(0, input.length - 1);
	}

	return input;
};

var npmRunPath$1 = {exports: {}};

(function (module) {
	const path = path__default["default"];
	const pathKey = pathKey$1.exports;

	const npmRunPath = options => {
		options = {
			cwd: process.cwd(),
			path: process.env[pathKey()],
			execPath: process.execPath,
			...options
		};

		let previous;
		let cwdPath = path.resolve(options.cwd);
		const result = [];

		while (previous !== cwdPath) {
			result.push(path.join(cwdPath, 'node_modules/.bin'));
			previous = cwdPath;
			cwdPath = path.resolve(cwdPath, '..');
		}

		// Ensure the running `node` binary is used
		const execPathDir = path.resolve(options.cwd, options.execPath, '..');
		result.push(execPathDir);

		return result.concat(options.path).join(path.delimiter);
	};

	module.exports = npmRunPath;
	// TODO: Remove this for the next major release
	module.exports.default = npmRunPath;

	module.exports.env = options => {
		options = {
			env: process.env,
			...options
		};

		const env = {...options.env};
		const path = pathKey({env});

		options.path = env[path];
		env[path] = module.exports(options);

		return env;
	};
} (npmRunPath$1));

var onetime$2 = {exports: {}};

var mimicFn$2 = {exports: {}};

const mimicFn$1 = (to, from) => {
	for (const prop of Reflect.ownKeys(from)) {
		Object.defineProperty(to, prop, Object.getOwnPropertyDescriptor(from, prop));
	}

	return to;
};

mimicFn$2.exports = mimicFn$1;
// TODO: Remove this for the next major release
mimicFn$2.exports.default = mimicFn$1;

const mimicFn = mimicFn$2.exports;

const calledFunctions = new WeakMap();

const onetime$1 = (function_, options = {}) => {
	if (typeof function_ !== 'function') {
		throw new TypeError('Expected a function');
	}

	let returnValue;
	let callCount = 0;
	const functionName = function_.displayName || function_.name || '<anonymous>';

	const onetime = function (...arguments_) {
		calledFunctions.set(onetime, ++callCount);

		if (callCount === 1) {
			returnValue = function_.apply(this, arguments_);
			function_ = null;
		} else if (options.throw === true) {
			throw new Error(`Function \`${functionName}\` can only be called once`);
		}

		return returnValue;
	};

	mimicFn(onetime, function_);
	calledFunctions.set(onetime, callCount);

	return onetime;
};

onetime$2.exports = onetime$1;
// TODO: Remove this for the next major release
onetime$2.exports.default = onetime$1;

onetime$2.exports.callCount = function_ => {
	if (!calledFunctions.has(function_)) {
		throw new Error(`The given function \`${function_.name}\` is not wrapped by the \`onetime\` package`);
	}

	return calledFunctions.get(function_);
};

var main = {};

var signals = {};

var core = {};

Object.defineProperty(core,"__esModule",{value:true});core.SIGNALS=void 0;

const SIGNALS=[
{
name:"SIGHUP",
number:1,
action:"terminate",
description:"Terminal closed",
standard:"posix"},

{
name:"SIGINT",
number:2,
action:"terminate",
description:"User interruption with CTRL-C",
standard:"ansi"},

{
name:"SIGQUIT",
number:3,
action:"core",
description:"User interruption with CTRL-\\",
standard:"posix"},

{
name:"SIGILL",
number:4,
action:"core",
description:"Invalid machine instruction",
standard:"ansi"},

{
name:"SIGTRAP",
number:5,
action:"core",
description:"Debugger breakpoint",
standard:"posix"},

{
name:"SIGABRT",
number:6,
action:"core",
description:"Aborted",
standard:"ansi"},

{
name:"SIGIOT",
number:6,
action:"core",
description:"Aborted",
standard:"bsd"},

{
name:"SIGBUS",
number:7,
action:"core",
description:
"Bus error due to misaligned, non-existing address or paging error",
standard:"bsd"},

{
name:"SIGEMT",
number:7,
action:"terminate",
description:"Command should be emulated but is not implemented",
standard:"other"},

{
name:"SIGFPE",
number:8,
action:"core",
description:"Floating point arithmetic error",
standard:"ansi"},

{
name:"SIGKILL",
number:9,
action:"terminate",
description:"Forced termination",
standard:"posix",
forced:true},

{
name:"SIGUSR1",
number:10,
action:"terminate",
description:"Application-specific signal",
standard:"posix"},

{
name:"SIGSEGV",
number:11,
action:"core",
description:"Segmentation fault",
standard:"ansi"},

{
name:"SIGUSR2",
number:12,
action:"terminate",
description:"Application-specific signal",
standard:"posix"},

{
name:"SIGPIPE",
number:13,
action:"terminate",
description:"Broken pipe or socket",
standard:"posix"},

{
name:"SIGALRM",
number:14,
action:"terminate",
description:"Timeout or timer",
standard:"posix"},

{
name:"SIGTERM",
number:15,
action:"terminate",
description:"Termination",
standard:"ansi"},

{
name:"SIGSTKFLT",
number:16,
action:"terminate",
description:"Stack is empty or overflowed",
standard:"other"},

{
name:"SIGCHLD",
number:17,
action:"ignore",
description:"Child process terminated, paused or unpaused",
standard:"posix"},

{
name:"SIGCLD",
number:17,
action:"ignore",
description:"Child process terminated, paused or unpaused",
standard:"other"},

{
name:"SIGCONT",
number:18,
action:"unpause",
description:"Unpaused",
standard:"posix",
forced:true},

{
name:"SIGSTOP",
number:19,
action:"pause",
description:"Paused",
standard:"posix",
forced:true},

{
name:"SIGTSTP",
number:20,
action:"pause",
description:"Paused using CTRL-Z or \"suspend\"",
standard:"posix"},

{
name:"SIGTTIN",
number:21,
action:"pause",
description:"Background process cannot read terminal input",
standard:"posix"},

{
name:"SIGBREAK",
number:21,
action:"terminate",
description:"User interruption with CTRL-BREAK",
standard:"other"},

{
name:"SIGTTOU",
number:22,
action:"pause",
description:"Background process cannot write to terminal output",
standard:"posix"},

{
name:"SIGURG",
number:23,
action:"ignore",
description:"Socket received out-of-band data",
standard:"bsd"},

{
name:"SIGXCPU",
number:24,
action:"core",
description:"Process timed out",
standard:"bsd"},

{
name:"SIGXFSZ",
number:25,
action:"core",
description:"File too big",
standard:"bsd"},

{
name:"SIGVTALRM",
number:26,
action:"terminate",
description:"Timeout or timer",
standard:"bsd"},

{
name:"SIGPROF",
number:27,
action:"terminate",
description:"Timeout or timer",
standard:"bsd"},

{
name:"SIGWINCH",
number:28,
action:"ignore",
description:"Terminal window size changed",
standard:"bsd"},

{
name:"SIGIO",
number:29,
action:"terminate",
description:"I/O is available",
standard:"other"},

{
name:"SIGPOLL",
number:29,
action:"terminate",
description:"Watched event",
standard:"other"},

{
name:"SIGINFO",
number:29,
action:"ignore",
description:"Request for process information",
standard:"other"},

{
name:"SIGPWR",
number:30,
action:"terminate",
description:"Device running out of power",
standard:"systemv"},

{
name:"SIGSYS",
number:31,
action:"core",
description:"Invalid system call",
standard:"other"},

{
name:"SIGUNUSED",
number:31,
action:"terminate",
description:"Invalid system call",
standard:"other"}];core.SIGNALS=SIGNALS;

var realtime = {};

Object.defineProperty(realtime,"__esModule",{value:true});realtime.SIGRTMAX=realtime.getRealtimeSignals=void 0;
const getRealtimeSignals=function(){
const length=SIGRTMAX-SIGRTMIN+1;
return Array.from({length},getRealtimeSignal);
};realtime.getRealtimeSignals=getRealtimeSignals;

const getRealtimeSignal=function(value,index){
return {
name:`SIGRT${index+1}`,
number:SIGRTMIN+index,
action:"terminate",
description:"Application-specific signal (realtime)",
standard:"posix"};

};

const SIGRTMIN=34;
const SIGRTMAX=64;realtime.SIGRTMAX=SIGRTMAX;

Object.defineProperty(signals,"__esModule",{value:true});signals.getSignals=void 0;var _os$1=require$$0__default$1["default"];

var _core=core;
var _realtime$1=realtime;



const getSignals=function(){
const realtimeSignals=(0, _realtime$1.getRealtimeSignals)();
const signals=[..._core.SIGNALS,...realtimeSignals].map(normalizeSignal);
return signals;
};signals.getSignals=getSignals;







const normalizeSignal=function({
name,
number:defaultNumber,
description,
action,
forced=false,
standard})
{
const{
signals:{[name]:constantSignal}}=
_os$1.constants;
const supported=constantSignal!==undefined;
const number=supported?constantSignal:defaultNumber;
return {name,number,description,supported,action,forced,standard};
};

Object.defineProperty(main,"__esModule",{value:true});main.signalsByNumber=main.signalsByName=void 0;var _os=require$$0__default$1["default"];

var _signals=signals;
var _realtime=realtime;



const getSignalsByName=function(){
const signals=(0, _signals.getSignals)();
return signals.reduce(getSignalByName,{});
};

const getSignalByName=function(
signalByNameMemo,
{name,number,description,supported,action,forced,standard})
{
return {
...signalByNameMemo,
[name]:{name,number,description,supported,action,forced,standard}};

};

const signalsByName$1=getSignalsByName();main.signalsByName=signalsByName$1;




const getSignalsByNumber=function(){
const signals=(0, _signals.getSignals)();
const length=_realtime.SIGRTMAX+1;
const signalsA=Array.from({length},(value,number)=>
getSignalByNumber(number,signals));

return Object.assign({},...signalsA);
};

const getSignalByNumber=function(number,signals){
const signal=findSignalByNumber(number,signals);

if(signal===undefined){
return {};
}

const{name,description,supported,action,forced,standard}=signal;
return {
[number]:{
name,
number,
description,
supported,
action,
forced,
standard}};


};



const findSignalByNumber=function(number,signals){
const signal=signals.find(({name})=>_os.constants.signals[name]===number);

if(signal!==undefined){
return signal;
}

return signals.find(signalA=>signalA.number===number);
};

const signalsByNumber=getSignalsByNumber();main.signalsByNumber=signalsByNumber;

const {signalsByName} = main;

const getErrorPrefix = ({timedOut, timeout, errorCode, signal, signalDescription, exitCode, isCanceled}) => {
	if (timedOut) {
		return `timed out after ${timeout} milliseconds`;
	}

	if (isCanceled) {
		return 'was canceled';
	}

	if (errorCode !== undefined) {
		return `failed with ${errorCode}`;
	}

	if (signal !== undefined) {
		return `was killed with ${signal} (${signalDescription})`;
	}

	if (exitCode !== undefined) {
		return `failed with exit code ${exitCode}`;
	}

	return 'failed';
};

const makeError$1 = ({
	stdout,
	stderr,
	all,
	error,
	signal,
	exitCode,
	command,
	escapedCommand,
	timedOut,
	isCanceled,
	killed,
	parsed: {options: {timeout}}
}) => {
	// `signal` and `exitCode` emitted on `spawned.on('exit')` event can be `null`.
	// We normalize them to `undefined`
	exitCode = exitCode === null ? undefined : exitCode;
	signal = signal === null ? undefined : signal;
	const signalDescription = signal === undefined ? undefined : signalsByName[signal].description;

	const errorCode = error && error.code;

	const prefix = getErrorPrefix({timedOut, timeout, errorCode, signal, signalDescription, exitCode, isCanceled});
	const execaMessage = `Command ${prefix}: ${command}`;
	const isError = Object.prototype.toString.call(error) === '[object Error]';
	const shortMessage = isError ? `${execaMessage}\n${error.message}` : execaMessage;
	const message = [shortMessage, stderr, stdout].filter(Boolean).join('\n');

	if (isError) {
		error.originalMessage = error.message;
		error.message = message;
	} else {
		error = new Error(message);
	}

	error.shortMessage = shortMessage;
	error.command = command;
	error.escapedCommand = escapedCommand;
	error.exitCode = exitCode;
	error.signal = signal;
	error.signalDescription = signalDescription;
	error.stdout = stdout;
	error.stderr = stderr;

	if (all !== undefined) {
		error.all = all;
	}

	if ('bufferedData' in error) {
		delete error.bufferedData;
	}

	error.failed = true;
	error.timedOut = Boolean(timedOut);
	error.isCanceled = isCanceled;
	error.killed = killed && !timedOut;

	return error;
};

var error = makeError$1;

var stdio = {exports: {}};

const aliases = ['stdin', 'stdout', 'stderr'];

const hasAlias = options => aliases.some(alias => options[alias] !== undefined);

const normalizeStdio$1 = options => {
	if (!options) {
		return;
	}

	const {stdio} = options;

	if (stdio === undefined) {
		return aliases.map(alias => options[alias]);
	}

	if (hasAlias(options)) {
		throw new Error(`It's not possible to provide \`stdio\` in combination with one of ${aliases.map(alias => `\`${alias}\``).join(', ')}`);
	}

	if (typeof stdio === 'string') {
		return stdio;
	}

	if (!Array.isArray(stdio)) {
		throw new TypeError(`Expected \`stdio\` to be of type \`string\` or \`Array\`, got \`${typeof stdio}\``);
	}

	const length = Math.max(stdio.length, aliases.length);
	return Array.from({length}, (value, index) => stdio[index]);
};

stdio.exports = normalizeStdio$1;

// `ipc` is pushed unless it is already present
stdio.exports.node = options => {
	const stdio = normalizeStdio$1(options);

	if (stdio === 'ipc') {
		return 'ipc';
	}

	if (stdio === undefined || typeof stdio === 'string') {
		return [stdio, stdio, stdio, 'ipc'];
	}

	if (stdio.includes('ipc')) {
		return stdio;
	}

	return [...stdio, 'ipc'];
};

const os = require$$0__default$1["default"];
const onExit = signalExit.exports;

const DEFAULT_FORCE_KILL_TIMEOUT = 1000 * 5;

// Monkey-patches `childProcess.kill()` to add `forceKillAfterTimeout` behavior
const spawnedKill$1 = (kill, signal = 'SIGTERM', options = {}) => {
	const killResult = kill(signal);
	setKillTimeout(kill, signal, options, killResult);
	return killResult;
};

const setKillTimeout = (kill, signal, options, killResult) => {
	if (!shouldForceKill(signal, options, killResult)) {
		return;
	}

	const timeout = getForceKillAfterTimeout(options);
	const t = setTimeout(() => {
		kill('SIGKILL');
	}, timeout);

	// Guarded because there's no `.unref()` when `execa` is used in the renderer
	// process in Electron. This cannot be tested since we don't run tests in
	// Electron.
	// istanbul ignore else
	if (t.unref) {
		t.unref();
	}
};

const shouldForceKill = (signal, {forceKillAfterTimeout}, killResult) => {
	return isSigterm(signal) && forceKillAfterTimeout !== false && killResult;
};

const isSigterm = signal => {
	return signal === os.constants.signals.SIGTERM ||
		(typeof signal === 'string' && signal.toUpperCase() === 'SIGTERM');
};

const getForceKillAfterTimeout = ({forceKillAfterTimeout = true}) => {
	if (forceKillAfterTimeout === true) {
		return DEFAULT_FORCE_KILL_TIMEOUT;
	}

	if (!Number.isFinite(forceKillAfterTimeout) || forceKillAfterTimeout < 0) {
		throw new TypeError(`Expected the \`forceKillAfterTimeout\` option to be a non-negative integer, got \`${forceKillAfterTimeout}\` (${typeof forceKillAfterTimeout})`);
	}

	return forceKillAfterTimeout;
};

// `childProcess.cancel()`
const spawnedCancel$1 = (spawned, context) => {
	const killResult = spawned.kill();

	if (killResult) {
		context.isCanceled = true;
	}
};

const timeoutKill = (spawned, signal, reject) => {
	spawned.kill(signal);
	reject(Object.assign(new Error('Timed out'), {timedOut: true, signal}));
};

// `timeout` option handling
const setupTimeout$1 = (spawned, {timeout, killSignal = 'SIGTERM'}, spawnedPromise) => {
	if (timeout === 0 || timeout === undefined) {
		return spawnedPromise;
	}

	let timeoutId;
	const timeoutPromise = new Promise((resolve, reject) => {
		timeoutId = setTimeout(() => {
			timeoutKill(spawned, killSignal, reject);
		}, timeout);
	});

	const safeSpawnedPromise = spawnedPromise.finally(() => {
		clearTimeout(timeoutId);
	});

	return Promise.race([timeoutPromise, safeSpawnedPromise]);
};

const validateTimeout$1 = ({timeout}) => {
	if (timeout !== undefined && (!Number.isFinite(timeout) || timeout < 0)) {
		throw new TypeError(`Expected the \`timeout\` option to be a non-negative integer, got \`${timeout}\` (${typeof timeout})`);
	}
};

// `cleanup` option handling
const setExitHandler$1 = async (spawned, {cleanup, detached}, timedPromise) => {
	if (!cleanup || detached) {
		return timedPromise;
	}

	const removeExitHandler = onExit(() => {
		spawned.kill();
	});

	return timedPromise.finally(() => {
		removeExitHandler();
	});
};

var kill = {
	spawnedKill: spawnedKill$1,
	spawnedCancel: spawnedCancel$1,
	setupTimeout: setupTimeout$1,
	validateTimeout: validateTimeout$1,
	setExitHandler: setExitHandler$1
};

const isStream$1 = stream =>
	stream !== null &&
	typeof stream === 'object' &&
	typeof stream.pipe === 'function';

isStream$1.writable = stream =>
	isStream$1(stream) &&
	stream.writable !== false &&
	typeof stream._write === 'function' &&
	typeof stream._writableState === 'object';

isStream$1.readable = stream =>
	isStream$1(stream) &&
	stream.readable !== false &&
	typeof stream._read === 'function' &&
	typeof stream._readableState === 'object';

isStream$1.duplex = stream =>
	isStream$1.writable(stream) &&
	isStream$1.readable(stream);

isStream$1.transform = stream =>
	isStream$1.duplex(stream) &&
	typeof stream._transform === 'function';

var isStream_1 = isStream$1;

var getStream$2 = {exports: {}};

const {PassThrough: PassThroughStream} = require$$0__default$3["default"];

var bufferStream$1 = options => {
	options = {...options};

	const {array} = options;
	let {encoding} = options;
	const isBuffer = encoding === 'buffer';
	let objectMode = false;

	if (array) {
		objectMode = !(encoding || isBuffer);
	} else {
		encoding = encoding || 'utf8';
	}

	if (isBuffer) {
		encoding = null;
	}

	const stream = new PassThroughStream({objectMode});

	if (encoding) {
		stream.setEncoding(encoding);
	}

	let length = 0;
	const chunks = [];

	stream.on('data', chunk => {
		chunks.push(chunk);

		if (objectMode) {
			length = chunks.length;
		} else {
			length += chunk.length;
		}
	});

	stream.getBufferedValue = () => {
		if (array) {
			return chunks;
		}

		return isBuffer ? Buffer.concat(chunks, length) : chunks.join('');
	};

	stream.getBufferedLength = () => length;

	return stream;
};

const {constants: BufferConstants} = require$$0__default$4["default"];
const stream$1 = require$$0__default$3["default"];
const {promisify} = require$$1__default["default"];
const bufferStream = bufferStream$1;

const streamPipelinePromisified = promisify(stream$1.pipeline);

class MaxBufferError extends Error {
	constructor() {
		super('maxBuffer exceeded');
		this.name = 'MaxBufferError';
	}
}

async function getStream$1(inputStream, options) {
	if (!inputStream) {
		throw new Error('Expected a stream');
	}

	options = {
		maxBuffer: Infinity,
		...options
	};

	const {maxBuffer} = options;
	const stream = bufferStream(options);

	await new Promise((resolve, reject) => {
		const rejectPromise = error => {
			// Don't retrieve an oversized buffer.
			if (error && stream.getBufferedLength() <= BufferConstants.MAX_LENGTH) {
				error.bufferedData = stream.getBufferedValue();
			}

			reject(error);
		};

		(async () => {
			try {
				await streamPipelinePromisified(inputStream, stream);
				resolve();
			} catch (error) {
				rejectPromise(error);
			}
		})();

		stream.on('data', () => {
			if (stream.getBufferedLength() > maxBuffer) {
				rejectPromise(new MaxBufferError());
			}
		});
	});

	return stream.getBufferedValue();
}

getStream$2.exports = getStream$1;
getStream$2.exports.buffer = (stream, options) => getStream$1(stream, {...options, encoding: 'buffer'});
getStream$2.exports.array = (stream, options) => getStream$1(stream, {...options, array: true});
getStream$2.exports.MaxBufferError = MaxBufferError;

const { PassThrough } = require$$0__default$3["default"];

var mergeStream$1 = function (/*streams...*/) {
  var sources = [];
  var output  = new PassThrough({objectMode: true});

  output.setMaxListeners(0);

  output.add = add;
  output.isEmpty = isEmpty;

  output.on('unpipe', remove);

  Array.prototype.slice.call(arguments).forEach(add);

  return output

  function add (source) {
    if (Array.isArray(source)) {
      source.forEach(add);
      return this
    }

    sources.push(source);
    source.once('end', remove.bind(null, source));
    source.once('error', output.emit.bind(output, 'error'));
    source.pipe(output, {end: false});
    return this
  }

  function isEmpty () {
    return sources.length == 0;
  }

  function remove (source) {
    sources = sources.filter(function (it) { return it !== source });
    if (!sources.length && output.readable) { output.end(); }
  }
};

const isStream = isStream_1;
const getStream = getStream$2.exports;
const mergeStream = mergeStream$1;

// `input` option
const handleInput$1 = (spawned, input) => {
	// Checking for stdin is workaround for https://github.com/nodejs/node/issues/26852
	// @todo remove `|| spawned.stdin === undefined` once we drop support for Node.js <=12.2.0
	if (input === undefined || spawned.stdin === undefined) {
		return;
	}

	if (isStream(input)) {
		input.pipe(spawned.stdin);
	} else {
		spawned.stdin.end(input);
	}
};

// `all` interleaves `stdout` and `stderr`
const makeAllStream$1 = (spawned, {all}) => {
	if (!all || (!spawned.stdout && !spawned.stderr)) {
		return;
	}

	const mixed = mergeStream();

	if (spawned.stdout) {
		mixed.add(spawned.stdout);
	}

	if (spawned.stderr) {
		mixed.add(spawned.stderr);
	}

	return mixed;
};

// On failure, `result.stdout|stderr|all` should contain the currently buffered stream
const getBufferedData = async (stream, streamPromise) => {
	if (!stream) {
		return;
	}

	stream.destroy();

	try {
		return await streamPromise;
	} catch (error) {
		return error.bufferedData;
	}
};

const getStreamPromise = (stream, {encoding, buffer, maxBuffer}) => {
	if (!stream || !buffer) {
		return;
	}

	if (encoding) {
		return getStream(stream, {encoding, maxBuffer});
	}

	return getStream.buffer(stream, {maxBuffer});
};

// Retrieve result of child process: exit code, signal, error, streams (stdout/stderr/all)
const getSpawnedResult$1 = async ({stdout, stderr, all}, {encoding, buffer, maxBuffer}, processDone) => {
	const stdoutPromise = getStreamPromise(stdout, {encoding, buffer, maxBuffer});
	const stderrPromise = getStreamPromise(stderr, {encoding, buffer, maxBuffer});
	const allPromise = getStreamPromise(all, {encoding, buffer, maxBuffer: maxBuffer * 2});

	try {
		return await Promise.all([processDone, stdoutPromise, stderrPromise, allPromise]);
	} catch (error) {
		return Promise.all([
			{error, signal: error.signal, timedOut: error.timedOut},
			getBufferedData(stdout, stdoutPromise),
			getBufferedData(stderr, stderrPromise),
			getBufferedData(all, allPromise)
		]);
	}
};

const validateInputSync$1 = ({input}) => {
	if (isStream(input)) {
		throw new TypeError('The `input` option cannot be a stream in sync mode');
	}
};

var stream = {
	handleInput: handleInput$1,
	makeAllStream: makeAllStream$1,
	getSpawnedResult: getSpawnedResult$1,
	validateInputSync: validateInputSync$1
};

const nativePromisePrototype = (async () => {})().constructor.prototype;
const descriptors = ['then', 'catch', 'finally'].map(property => [
	property,
	Reflect.getOwnPropertyDescriptor(nativePromisePrototype, property)
]);

// The return value is a mixin of `childProcess` and `Promise`
const mergePromise$1 = (spawned, promise) => {
	for (const [property, descriptor] of descriptors) {
		// Starting the main `promise` is deferred to avoid consuming streams
		const value = typeof promise === 'function' ?
			(...args) => Reflect.apply(descriptor.value, promise(), args) :
			descriptor.value.bind(promise);

		Reflect.defineProperty(spawned, property, {...descriptor, value});
	}

	return spawned;
};

// Use promises instead of `child_process` events
const getSpawnedPromise$1 = spawned => {
	return new Promise((resolve, reject) => {
		spawned.on('exit', (exitCode, signal) => {
			resolve({exitCode, signal});
		});

		spawned.on('error', error => {
			reject(error);
		});

		if (spawned.stdin) {
			spawned.stdin.on('error', error => {
				reject(error);
			});
		}
	});
};

var promise = {
	mergePromise: mergePromise$1,
	getSpawnedPromise: getSpawnedPromise$1
};

const normalizeArgs = (file, args = []) => {
	if (!Array.isArray(args)) {
		return [file];
	}

	return [file, ...args];
};

const NO_ESCAPE_REGEXP = /^[\w.-]+$/;
const DOUBLE_QUOTES_REGEXP = /"/g;

const escapeArg = arg => {
	if (typeof arg !== 'string' || NO_ESCAPE_REGEXP.test(arg)) {
		return arg;
	}

	return `"${arg.replace(DOUBLE_QUOTES_REGEXP, '\\"')}"`;
};

const joinCommand$1 = (file, args) => {
	return normalizeArgs(file, args).join(' ');
};

const getEscapedCommand$1 = (file, args) => {
	return normalizeArgs(file, args).map(arg => escapeArg(arg)).join(' ');
};

const SPACES_REGEXP = / +/g;

// Handle `execa.command()`
const parseCommand$1 = command => {
	const tokens = [];
	for (const token of command.trim().split(SPACES_REGEXP)) {
		// Allow spaces to be escaped by a backslash if not meant as a delimiter
		const previousToken = tokens[tokens.length - 1];
		if (previousToken && previousToken.endsWith('\\')) {
			// Merge previous token with current one
			tokens[tokens.length - 1] = `${previousToken.slice(0, -1)} ${token}`;
		} else {
			tokens.push(token);
		}
	}

	return tokens;
};

var command = {
	joinCommand: joinCommand$1,
	getEscapedCommand: getEscapedCommand$1,
	parseCommand: parseCommand$1
};

const path = path__default["default"];
const childProcess = require$$0__default$9["default"];
const crossSpawn = crossSpawn$1.exports;
const stripFinalNewline = stripFinalNewline$1;
const npmRunPath = npmRunPath$1.exports;
const onetime = onetime$2.exports;
const makeError = error;
const normalizeStdio = stdio.exports;
const {spawnedKill, spawnedCancel, setupTimeout, validateTimeout, setExitHandler} = kill;
const {handleInput, getSpawnedResult, makeAllStream, validateInputSync} = stream;
const {mergePromise, getSpawnedPromise} = promise;
const {joinCommand, parseCommand, getEscapedCommand} = command;

const DEFAULT_MAX_BUFFER = 1000 * 1000 * 100;

const getEnv = ({env: envOption, extendEnv, preferLocal, localDir, execPath}) => {
	const env = extendEnv ? {...process.env, ...envOption} : envOption;

	if (preferLocal) {
		return npmRunPath.env({env, cwd: localDir, execPath});
	}

	return env;
};

const handleArguments = (file, args, options = {}) => {
	const parsed = crossSpawn._parse(file, args, options);
	file = parsed.command;
	args = parsed.args;
	options = parsed.options;

	options = {
		maxBuffer: DEFAULT_MAX_BUFFER,
		buffer: true,
		stripFinalNewline: true,
		extendEnv: true,
		preferLocal: false,
		localDir: options.cwd || process.cwd(),
		execPath: process.execPath,
		encoding: 'utf8',
		reject: true,
		cleanup: true,
		all: false,
		windowsHide: true,
		...options
	};

	options.env = getEnv(options);

	options.stdio = normalizeStdio(options);

	if (process.platform === 'win32' && path.basename(file, '.exe') === 'cmd') {
		// #116
		args.unshift('/q');
	}

	return {file, args, options, parsed};
};

const handleOutput = (options, value, error) => {
	if (typeof value !== 'string' && !Buffer.isBuffer(value)) {
		// When `execa.sync()` errors, we normalize it to '' to mimic `execa()`
		return error === undefined ? undefined : '';
	}

	if (options.stripFinalNewline) {
		return stripFinalNewline(value);
	}

	return value;
};

const execa = (file, args, options) => {
	const parsed = handleArguments(file, args, options);
	const command = joinCommand(file, args);
	const escapedCommand = getEscapedCommand(file, args);

	validateTimeout(parsed.options);

	let spawned;
	try {
		spawned = childProcess.spawn(parsed.file, parsed.args, parsed.options);
	} catch (error) {
		// Ensure the returned error is always both a promise and a child process
		const dummySpawned = new childProcess.ChildProcess();
		const errorPromise = Promise.reject(makeError({
			error,
			stdout: '',
			stderr: '',
			all: '',
			command,
			escapedCommand,
			parsed,
			timedOut: false,
			isCanceled: false,
			killed: false
		}));
		return mergePromise(dummySpawned, errorPromise);
	}

	const spawnedPromise = getSpawnedPromise(spawned);
	const timedPromise = setupTimeout(spawned, parsed.options, spawnedPromise);
	const processDone = setExitHandler(spawned, parsed.options, timedPromise);

	const context = {isCanceled: false};

	spawned.kill = spawnedKill.bind(null, spawned.kill.bind(spawned));
	spawned.cancel = spawnedCancel.bind(null, spawned, context);

	const handlePromise = async () => {
		const [{error, exitCode, signal, timedOut}, stdoutResult, stderrResult, allResult] = await getSpawnedResult(spawned, parsed.options, processDone);
		const stdout = handleOutput(parsed.options, stdoutResult);
		const stderr = handleOutput(parsed.options, stderrResult);
		const all = handleOutput(parsed.options, allResult);

		if (error || exitCode !== 0 || signal !== null) {
			const returnedError = makeError({
				error,
				exitCode,
				signal,
				stdout,
				stderr,
				all,
				command,
				escapedCommand,
				parsed,
				timedOut,
				isCanceled: context.isCanceled,
				killed: spawned.killed
			});

			if (!parsed.options.reject) {
				return returnedError;
			}

			throw returnedError;
		}

		return {
			command,
			escapedCommand,
			exitCode: 0,
			stdout,
			stderr,
			all,
			failed: false,
			timedOut: false,
			isCanceled: false,
			killed: false
		};
	};

	const handlePromiseOnce = onetime(handlePromise);

	handleInput(spawned, parsed.options.input);

	spawned.all = makeAllStream(spawned, parsed.options);

	return mergePromise(spawned, handlePromiseOnce);
};

execa$1.exports = execa;

execa$1.exports.sync = (file, args, options) => {
	const parsed = handleArguments(file, args, options);
	const command = joinCommand(file, args);
	const escapedCommand = getEscapedCommand(file, args);

	validateInputSync(parsed.options);

	let result;
	try {
		result = childProcess.spawnSync(parsed.file, parsed.args, parsed.options);
	} catch (error) {
		throw makeError({
			error,
			stdout: '',
			stderr: '',
			all: '',
			command,
			escapedCommand,
			parsed,
			timedOut: false,
			isCanceled: false,
			killed: false
		});
	}

	const stdout = handleOutput(parsed.options, result.stdout, result.error);
	const stderr = handleOutput(parsed.options, result.stderr, result.error);

	if (result.error || result.status !== 0 || result.signal !== null) {
		const error = makeError({
			stdout,
			stderr,
			error: result.error,
			signal: result.signal,
			exitCode: result.status,
			command,
			escapedCommand,
			parsed,
			timedOut: result.error && result.error.code === 'ETIMEDOUT',
			isCanceled: false,
			killed: result.signal !== null
		});

		if (!parsed.options.reject) {
			return error;
		}

		throw error;
	}

	return {
		command,
		escapedCommand,
		exitCode: 0,
		stdout,
		stderr,
		failed: false,
		timedOut: false,
		isCanceled: false,
		killed: false
	};
};

execa$1.exports.command = (command, options) => {
	const [file, ...args] = parseCommand(command);
	return execa(file, args, options);
};

execa$1.exports.commandSync = (command, options) => {
	const [file, ...args] = parseCommand(command);
	return execa.sync(file, args, options);
};

execa$1.exports.node = (scriptPath, args, options = {}) => {
	if (args && !Array.isArray(args) && typeof args === 'object') {
		options = args;
		args = [];
	}

	const stdio = normalizeStdio.node(options);
	const defaultExecArgv = process.execArgv.filter(arg => !arg.startsWith('--inspect'));

	const {
		nodePath = process.execPath,
		nodeOptions = defaultExecArgv
	} = options;

	return execa(
		nodePath,
		[
			...nodeOptions,
			scriptPath,
			...(Array.isArray(args) ? args : [])
		],
		{
			...options,
			stdin: undefined,
			stdout: undefined,
			stderr: undefined,
			stdio,
			shell: false
		}
	);
};

function semverRegex() {
	return /(?<=^v?|\sv?)(?:(?:0|[1-9]\d{0,9}?)\.){2}(?:0|[1-9]\d{0,9})(?:-(?:--+)?(?:0|[1-9]\d*|\d*[a-z]+\d*)){0,100}(?=$| |\+|\.)(?:(?<=-\S+)(?:\.(?:--?|[\da-z-]*[a-z-]\d*|0|[1-9]\d*)){1,100}?)?(?!\.)(?:\+(?:[\da-z]\.?-?){1,100}?(?!\w))?(?!\+)/gi;
}

function findVersions(stringWithVersions, {loose = false} = {}) {
	if (typeof stringWithVersions !== 'string') {
		throw new TypeError(`Expected a string, got ${typeof stringWithVersions}`);
	}

	const regex = loose ? new RegExp(`(?:${semverRegex().source})|(?:v?(?:\\d+\\.\\d+)(?:\\.\\d+)?)`, 'g') : semverRegex();
	const matches = stringWithVersions.match(regex) || [];

	return [...new Set(matches.map(match => match.trim().replace(/^v/, '').replace(/^\d+\.\d+$/, '$&.0')))];
}

const oneMegabyte = 1000 * 1000;

const knownBinaryArguments = new Map([
	...[
		'ffmpeg',
		'ffprobe',
		'ffplay'
	].map(name => [name, ['-version']]),
	['openssl', ['version']]
]);

const defaultPossibleArguments = [
	['--version'],
	['version']
];

async function binaryVersion(binary, options = {}) {
	let possibleArguments;

	if (options.args === undefined) {
		const customArgs = knownBinaryArguments.get(binary);
		possibleArguments = customArgs === undefined ? defaultPossibleArguments : [customArgs];
	} else {
		possibleArguments = [options.args];
	}

	for (const args of possibleArguments) {
		try {
			// eslint-disable-next-line no-await-in-loop
			const {all} = await execa$1.exports(binary, args, {
				all: true,
				maxBuffer: oneMegabyte
			});

			const [version] = findVersions(all, {loose: true});
			if (version !== undefined) {
				return version;
			}
		} catch (error) {
			if (error.code === 'ENOENT') {
				const newError = new Error(`Couldn't find the \`${binary}\` binary. Make sure it's installed and in your $PATH.`);
				newError.sourceError = error;
				throw newError;
			}

			if (error.code === 'EACCES') {
				throw error;
			}
		}
	}

	throw new Error(`Couldn't find version of \`${binary}\``);
}

var semver$1 = {exports: {}};

(function (module, exports) {
	exports = module.exports = SemVer;

	var debug;
	/* istanbul ignore next */
	if (typeof process === 'object' &&
	    process.env &&
	    process.env.NODE_DEBUG &&
	    /\bsemver\b/i.test(process.env.NODE_DEBUG)) {
	  debug = function () {
	    var args = Array.prototype.slice.call(arguments, 0);
	    args.unshift('SEMVER');
	    console.log.apply(console, args);
	  };
	} else {
	  debug = function () {};
	}

	// Note: this is the semver.org version of the spec that it implements
	// Not necessarily the package version of this code.
	exports.SEMVER_SPEC_VERSION = '2.0.0';

	var MAX_LENGTH = 256;
	var MAX_SAFE_INTEGER = Number.MAX_SAFE_INTEGER ||
	  /* istanbul ignore next */ 9007199254740991;

	// Max safe segment length for coercion.
	var MAX_SAFE_COMPONENT_LENGTH = 16;

	// The actual regexps go on exports.re
	var re = exports.re = [];
	var src = exports.src = [];
	var t = exports.tokens = {};
	var R = 0;

	function tok (n) {
	  t[n] = R++;
	}

	// The following Regular Expressions can be used for tokenizing,
	// validating, and parsing SemVer version strings.

	// ## Numeric Identifier
	// A single `0`, or a non-zero digit followed by zero or more digits.

	tok('NUMERICIDENTIFIER');
	src[t.NUMERICIDENTIFIER] = '0|[1-9]\\d*';
	tok('NUMERICIDENTIFIERLOOSE');
	src[t.NUMERICIDENTIFIERLOOSE] = '[0-9]+';

	// ## Non-numeric Identifier
	// Zero or more digits, followed by a letter or hyphen, and then zero or
	// more letters, digits, or hyphens.

	tok('NONNUMERICIDENTIFIER');
	src[t.NONNUMERICIDENTIFIER] = '\\d*[a-zA-Z-][a-zA-Z0-9-]*';

	// ## Main Version
	// Three dot-separated numeric identifiers.

	tok('MAINVERSION');
	src[t.MAINVERSION] = '(' + src[t.NUMERICIDENTIFIER] + ')\\.' +
	                   '(' + src[t.NUMERICIDENTIFIER] + ')\\.' +
	                   '(' + src[t.NUMERICIDENTIFIER] + ')';

	tok('MAINVERSIONLOOSE');
	src[t.MAINVERSIONLOOSE] = '(' + src[t.NUMERICIDENTIFIERLOOSE] + ')\\.' +
	                        '(' + src[t.NUMERICIDENTIFIERLOOSE] + ')\\.' +
	                        '(' + src[t.NUMERICIDENTIFIERLOOSE] + ')';

	// ## Pre-release Version Identifier
	// A numeric identifier, or a non-numeric identifier.

	tok('PRERELEASEIDENTIFIER');
	src[t.PRERELEASEIDENTIFIER] = '(?:' + src[t.NUMERICIDENTIFIER] +
	                            '|' + src[t.NONNUMERICIDENTIFIER] + ')';

	tok('PRERELEASEIDENTIFIERLOOSE');
	src[t.PRERELEASEIDENTIFIERLOOSE] = '(?:' + src[t.NUMERICIDENTIFIERLOOSE] +
	                                 '|' + src[t.NONNUMERICIDENTIFIER] + ')';

	// ## Pre-release Version
	// Hyphen, followed by one or more dot-separated pre-release version
	// identifiers.

	tok('PRERELEASE');
	src[t.PRERELEASE] = '(?:-(' + src[t.PRERELEASEIDENTIFIER] +
	                  '(?:\\.' + src[t.PRERELEASEIDENTIFIER] + ')*))';

	tok('PRERELEASELOOSE');
	src[t.PRERELEASELOOSE] = '(?:-?(' + src[t.PRERELEASEIDENTIFIERLOOSE] +
	                       '(?:\\.' + src[t.PRERELEASEIDENTIFIERLOOSE] + ')*))';

	// ## Build Metadata Identifier
	// Any combination of digits, letters, or hyphens.

	tok('BUILDIDENTIFIER');
	src[t.BUILDIDENTIFIER] = '[0-9A-Za-z-]+';

	// ## Build Metadata
	// Plus sign, followed by one or more period-separated build metadata
	// identifiers.

	tok('BUILD');
	src[t.BUILD] = '(?:\\+(' + src[t.BUILDIDENTIFIER] +
	             '(?:\\.' + src[t.BUILDIDENTIFIER] + ')*))';

	// ## Full Version String
	// A main version, followed optionally by a pre-release version and
	// build metadata.

	// Note that the only major, minor, patch, and pre-release sections of
	// the version string are capturing groups.  The build metadata is not a
	// capturing group, because it should not ever be used in version
	// comparison.

	tok('FULL');
	tok('FULLPLAIN');
	src[t.FULLPLAIN] = 'v?' + src[t.MAINVERSION] +
	                  src[t.PRERELEASE] + '?' +
	                  src[t.BUILD] + '?';

	src[t.FULL] = '^' + src[t.FULLPLAIN] + '$';

	// like full, but allows v1.2.3 and =1.2.3, which people do sometimes.
	// also, 1.0.0alpha1 (prerelease without the hyphen) which is pretty
	// common in the npm registry.
	tok('LOOSEPLAIN');
	src[t.LOOSEPLAIN] = '[v=\\s]*' + src[t.MAINVERSIONLOOSE] +
	                  src[t.PRERELEASELOOSE] + '?' +
	                  src[t.BUILD] + '?';

	tok('LOOSE');
	src[t.LOOSE] = '^' + src[t.LOOSEPLAIN] + '$';

	tok('GTLT');
	src[t.GTLT] = '((?:<|>)?=?)';

	// Something like "2.*" or "1.2.x".
	// Note that "x.x" is a valid xRange identifer, meaning "any version"
	// Only the first item is strictly required.
	tok('XRANGEIDENTIFIERLOOSE');
	src[t.XRANGEIDENTIFIERLOOSE] = src[t.NUMERICIDENTIFIERLOOSE] + '|x|X|\\*';
	tok('XRANGEIDENTIFIER');
	src[t.XRANGEIDENTIFIER] = src[t.NUMERICIDENTIFIER] + '|x|X|\\*';

	tok('XRANGEPLAIN');
	src[t.XRANGEPLAIN] = '[v=\\s]*(' + src[t.XRANGEIDENTIFIER] + ')' +
	                   '(?:\\.(' + src[t.XRANGEIDENTIFIER] + ')' +
	                   '(?:\\.(' + src[t.XRANGEIDENTIFIER] + ')' +
	                   '(?:' + src[t.PRERELEASE] + ')?' +
	                   src[t.BUILD] + '?' +
	                   ')?)?';

	tok('XRANGEPLAINLOOSE');
	src[t.XRANGEPLAINLOOSE] = '[v=\\s]*(' + src[t.XRANGEIDENTIFIERLOOSE] + ')' +
	                        '(?:\\.(' + src[t.XRANGEIDENTIFIERLOOSE] + ')' +
	                        '(?:\\.(' + src[t.XRANGEIDENTIFIERLOOSE] + ')' +
	                        '(?:' + src[t.PRERELEASELOOSE] + ')?' +
	                        src[t.BUILD] + '?' +
	                        ')?)?';

	tok('XRANGE');
	src[t.XRANGE] = '^' + src[t.GTLT] + '\\s*' + src[t.XRANGEPLAIN] + '$';
	tok('XRANGELOOSE');
	src[t.XRANGELOOSE] = '^' + src[t.GTLT] + '\\s*' + src[t.XRANGEPLAINLOOSE] + '$';

	// Coercion.
	// Extract anything that could conceivably be a part of a valid semver
	tok('COERCE');
	src[t.COERCE] = '(^|[^\\d])' +
	              '(\\d{1,' + MAX_SAFE_COMPONENT_LENGTH + '})' +
	              '(?:\\.(\\d{1,' + MAX_SAFE_COMPONENT_LENGTH + '}))?' +
	              '(?:\\.(\\d{1,' + MAX_SAFE_COMPONENT_LENGTH + '}))?' +
	              '(?:$|[^\\d])';
	tok('COERCERTL');
	re[t.COERCERTL] = new RegExp(src[t.COERCE], 'g');

	// Tilde ranges.
	// Meaning is "reasonably at or greater than"
	tok('LONETILDE');
	src[t.LONETILDE] = '(?:~>?)';

	tok('TILDETRIM');
	src[t.TILDETRIM] = '(\\s*)' + src[t.LONETILDE] + '\\s+';
	re[t.TILDETRIM] = new RegExp(src[t.TILDETRIM], 'g');
	var tildeTrimReplace = '$1~';

	tok('TILDE');
	src[t.TILDE] = '^' + src[t.LONETILDE] + src[t.XRANGEPLAIN] + '$';
	tok('TILDELOOSE');
	src[t.TILDELOOSE] = '^' + src[t.LONETILDE] + src[t.XRANGEPLAINLOOSE] + '$';

	// Caret ranges.
	// Meaning is "at least and backwards compatible with"
	tok('LONECARET');
	src[t.LONECARET] = '(?:\\^)';

	tok('CARETTRIM');
	src[t.CARETTRIM] = '(\\s*)' + src[t.LONECARET] + '\\s+';
	re[t.CARETTRIM] = new RegExp(src[t.CARETTRIM], 'g');
	var caretTrimReplace = '$1^';

	tok('CARET');
	src[t.CARET] = '^' + src[t.LONECARET] + src[t.XRANGEPLAIN] + '$';
	tok('CARETLOOSE');
	src[t.CARETLOOSE] = '^' + src[t.LONECARET] + src[t.XRANGEPLAINLOOSE] + '$';

	// A simple gt/lt/eq thing, or just "" to indicate "any version"
	tok('COMPARATORLOOSE');
	src[t.COMPARATORLOOSE] = '^' + src[t.GTLT] + '\\s*(' + src[t.LOOSEPLAIN] + ')$|^$';
	tok('COMPARATOR');
	src[t.COMPARATOR] = '^' + src[t.GTLT] + '\\s*(' + src[t.FULLPLAIN] + ')$|^$';

	// An expression to strip any whitespace between the gtlt and the thing
	// it modifies, so that `> 1.2.3` ==> `>1.2.3`
	tok('COMPARATORTRIM');
	src[t.COMPARATORTRIM] = '(\\s*)' + src[t.GTLT] +
	                      '\\s*(' + src[t.LOOSEPLAIN] + '|' + src[t.XRANGEPLAIN] + ')';

	// this one has to use the /g flag
	re[t.COMPARATORTRIM] = new RegExp(src[t.COMPARATORTRIM], 'g');
	var comparatorTrimReplace = '$1$2$3';

	// Something like `1.2.3 - 1.2.4`
	// Note that these all use the loose form, because they'll be
	// checked against either the strict or loose comparator form
	// later.
	tok('HYPHENRANGE');
	src[t.HYPHENRANGE] = '^\\s*(' + src[t.XRANGEPLAIN] + ')' +
	                   '\\s+-\\s+' +
	                   '(' + src[t.XRANGEPLAIN] + ')' +
	                   '\\s*$';

	tok('HYPHENRANGELOOSE');
	src[t.HYPHENRANGELOOSE] = '^\\s*(' + src[t.XRANGEPLAINLOOSE] + ')' +
	                        '\\s+-\\s+' +
	                        '(' + src[t.XRANGEPLAINLOOSE] + ')' +
	                        '\\s*$';

	// Star ranges basically just allow anything at all.
	tok('STAR');
	src[t.STAR] = '(<|>)?=?\\s*\\*';

	// Compile to actual regexp objects.
	// All are flag-free, unless they were created above with a flag.
	for (var i = 0; i < R; i++) {
	  debug(i, src[i]);
	  if (!re[i]) {
	    re[i] = new RegExp(src[i]);
	  }
	}

	exports.parse = parse;
	function parse (version, options) {
	  if (!options || typeof options !== 'object') {
	    options = {
	      loose: !!options,
	      includePrerelease: false
	    };
	  }

	  if (version instanceof SemVer) {
	    return version
	  }

	  if (typeof version !== 'string') {
	    return null
	  }

	  if (version.length > MAX_LENGTH) {
	    return null
	  }

	  var r = options.loose ? re[t.LOOSE] : re[t.FULL];
	  if (!r.test(version)) {
	    return null
	  }

	  try {
	    return new SemVer(version, options)
	  } catch (er) {
	    return null
	  }
	}

	exports.valid = valid;
	function valid (version, options) {
	  var v = parse(version, options);
	  return v ? v.version : null
	}

	exports.clean = clean;
	function clean (version, options) {
	  var s = parse(version.trim().replace(/^[=v]+/, ''), options);
	  return s ? s.version : null
	}

	exports.SemVer = SemVer;

	function SemVer (version, options) {
	  if (!options || typeof options !== 'object') {
	    options = {
	      loose: !!options,
	      includePrerelease: false
	    };
	  }
	  if (version instanceof SemVer) {
	    if (version.loose === options.loose) {
	      return version
	    } else {
	      version = version.version;
	    }
	  } else if (typeof version !== 'string') {
	    throw new TypeError('Invalid Version: ' + version)
	  }

	  if (version.length > MAX_LENGTH) {
	    throw new TypeError('version is longer than ' + MAX_LENGTH + ' characters')
	  }

	  if (!(this instanceof SemVer)) {
	    return new SemVer(version, options)
	  }

	  debug('SemVer', version, options);
	  this.options = options;
	  this.loose = !!options.loose;

	  var m = version.trim().match(options.loose ? re[t.LOOSE] : re[t.FULL]);

	  if (!m) {
	    throw new TypeError('Invalid Version: ' + version)
	  }

	  this.raw = version;

	  // these are actually numbers
	  this.major = +m[1];
	  this.minor = +m[2];
	  this.patch = +m[3];

	  if (this.major > MAX_SAFE_INTEGER || this.major < 0) {
	    throw new TypeError('Invalid major version')
	  }

	  if (this.minor > MAX_SAFE_INTEGER || this.minor < 0) {
	    throw new TypeError('Invalid minor version')
	  }

	  if (this.patch > MAX_SAFE_INTEGER || this.patch < 0) {
	    throw new TypeError('Invalid patch version')
	  }

	  // numberify any prerelease numeric ids
	  if (!m[4]) {
	    this.prerelease = [];
	  } else {
	    this.prerelease = m[4].split('.').map(function (id) {
	      if (/^[0-9]+$/.test(id)) {
	        var num = +id;
	        if (num >= 0 && num < MAX_SAFE_INTEGER) {
	          return num
	        }
	      }
	      return id
	    });
	  }

	  this.build = m[5] ? m[5].split('.') : [];
	  this.format();
	}

	SemVer.prototype.format = function () {
	  this.version = this.major + '.' + this.minor + '.' + this.patch;
	  if (this.prerelease.length) {
	    this.version += '-' + this.prerelease.join('.');
	  }
	  return this.version
	};

	SemVer.prototype.toString = function () {
	  return this.version
	};

	SemVer.prototype.compare = function (other) {
	  debug('SemVer.compare', this.version, this.options, other);
	  if (!(other instanceof SemVer)) {
	    other = new SemVer(other, this.options);
	  }

	  return this.compareMain(other) || this.comparePre(other)
	};

	SemVer.prototype.compareMain = function (other) {
	  if (!(other instanceof SemVer)) {
	    other = new SemVer(other, this.options);
	  }

	  return compareIdentifiers(this.major, other.major) ||
	         compareIdentifiers(this.minor, other.minor) ||
	         compareIdentifiers(this.patch, other.patch)
	};

	SemVer.prototype.comparePre = function (other) {
	  if (!(other instanceof SemVer)) {
	    other = new SemVer(other, this.options);
	  }

	  // NOT having a prerelease is > having one
	  if (this.prerelease.length && !other.prerelease.length) {
	    return -1
	  } else if (!this.prerelease.length && other.prerelease.length) {
	    return 1
	  } else if (!this.prerelease.length && !other.prerelease.length) {
	    return 0
	  }

	  var i = 0;
	  do {
	    var a = this.prerelease[i];
	    var b = other.prerelease[i];
	    debug('prerelease compare', i, a, b);
	    if (a === undefined && b === undefined) {
	      return 0
	    } else if (b === undefined) {
	      return 1
	    } else if (a === undefined) {
	      return -1
	    } else if (a === b) {
	      continue
	    } else {
	      return compareIdentifiers(a, b)
	    }
	  } while (++i)
	};

	SemVer.prototype.compareBuild = function (other) {
	  if (!(other instanceof SemVer)) {
	    other = new SemVer(other, this.options);
	  }

	  var i = 0;
	  do {
	    var a = this.build[i];
	    var b = other.build[i];
	    debug('prerelease compare', i, a, b);
	    if (a === undefined && b === undefined) {
	      return 0
	    } else if (b === undefined) {
	      return 1
	    } else if (a === undefined) {
	      return -1
	    } else if (a === b) {
	      continue
	    } else {
	      return compareIdentifiers(a, b)
	    }
	  } while (++i)
	};

	// preminor will bump the version up to the next minor release, and immediately
	// down to pre-release. premajor and prepatch work the same way.
	SemVer.prototype.inc = function (release, identifier) {
	  switch (release) {
	    case 'premajor':
	      this.prerelease.length = 0;
	      this.patch = 0;
	      this.minor = 0;
	      this.major++;
	      this.inc('pre', identifier);
	      break
	    case 'preminor':
	      this.prerelease.length = 0;
	      this.patch = 0;
	      this.minor++;
	      this.inc('pre', identifier);
	      break
	    case 'prepatch':
	      // If this is already a prerelease, it will bump to the next version
	      // drop any prereleases that might already exist, since they are not
	      // relevant at this point.
	      this.prerelease.length = 0;
	      this.inc('patch', identifier);
	      this.inc('pre', identifier);
	      break
	    // If the input is a non-prerelease version, this acts the same as
	    // prepatch.
	    case 'prerelease':
	      if (this.prerelease.length === 0) {
	        this.inc('patch', identifier);
	      }
	      this.inc('pre', identifier);
	      break

	    case 'major':
	      // If this is a pre-major version, bump up to the same major version.
	      // Otherwise increment major.
	      // 1.0.0-5 bumps to 1.0.0
	      // 1.1.0 bumps to 2.0.0
	      if (this.minor !== 0 ||
	          this.patch !== 0 ||
	          this.prerelease.length === 0) {
	        this.major++;
	      }
	      this.minor = 0;
	      this.patch = 0;
	      this.prerelease = [];
	      break
	    case 'minor':
	      // If this is a pre-minor version, bump up to the same minor version.
	      // Otherwise increment minor.
	      // 1.2.0-5 bumps to 1.2.0
	      // 1.2.1 bumps to 1.3.0
	      if (this.patch !== 0 || this.prerelease.length === 0) {
	        this.minor++;
	      }
	      this.patch = 0;
	      this.prerelease = [];
	      break
	    case 'patch':
	      // If this is not a pre-release version, it will increment the patch.
	      // If it is a pre-release it will bump up to the same patch version.
	      // 1.2.0-5 patches to 1.2.0
	      // 1.2.0 patches to 1.2.1
	      if (this.prerelease.length === 0) {
	        this.patch++;
	      }
	      this.prerelease = [];
	      break
	    // This probably shouldn't be used publicly.
	    // 1.0.0 "pre" would become 1.0.0-0 which is the wrong direction.
	    case 'pre':
	      if (this.prerelease.length === 0) {
	        this.prerelease = [0];
	      } else {
	        var i = this.prerelease.length;
	        while (--i >= 0) {
	          if (typeof this.prerelease[i] === 'number') {
	            this.prerelease[i]++;
	            i = -2;
	          }
	        }
	        if (i === -1) {
	          // didn't increment anything
	          this.prerelease.push(0);
	        }
	      }
	      if (identifier) {
	        // 1.2.0-beta.1 bumps to 1.2.0-beta.2,
	        // 1.2.0-beta.fooblz or 1.2.0-beta bumps to 1.2.0-beta.0
	        if (this.prerelease[0] === identifier) {
	          if (isNaN(this.prerelease[1])) {
	            this.prerelease = [identifier, 0];
	          }
	        } else {
	          this.prerelease = [identifier, 0];
	        }
	      }
	      break

	    default:
	      throw new Error('invalid increment argument: ' + release)
	  }
	  this.format();
	  this.raw = this.version;
	  return this
	};

	exports.inc = inc;
	function inc (version, release, loose, identifier) {
	  if (typeof (loose) === 'string') {
	    identifier = loose;
	    loose = undefined;
	  }

	  try {
	    return new SemVer(version, loose).inc(release, identifier).version
	  } catch (er) {
	    return null
	  }
	}

	exports.diff = diff;
	function diff (version1, version2) {
	  if (eq(version1, version2)) {
	    return null
	  } else {
	    var v1 = parse(version1);
	    var v2 = parse(version2);
	    var prefix = '';
	    if (v1.prerelease.length || v2.prerelease.length) {
	      prefix = 'pre';
	      var defaultResult = 'prerelease';
	    }
	    for (var key in v1) {
	      if (key === 'major' || key === 'minor' || key === 'patch') {
	        if (v1[key] !== v2[key]) {
	          return prefix + key
	        }
	      }
	    }
	    return defaultResult // may be undefined
	  }
	}

	exports.compareIdentifiers = compareIdentifiers;

	var numeric = /^[0-9]+$/;
	function compareIdentifiers (a, b) {
	  var anum = numeric.test(a);
	  var bnum = numeric.test(b);

	  if (anum && bnum) {
	    a = +a;
	    b = +b;
	  }

	  return a === b ? 0
	    : (anum && !bnum) ? -1
	    : (bnum && !anum) ? 1
	    : a < b ? -1
	    : 1
	}

	exports.rcompareIdentifiers = rcompareIdentifiers;
	function rcompareIdentifiers (a, b) {
	  return compareIdentifiers(b, a)
	}

	exports.major = major;
	function major (a, loose) {
	  return new SemVer(a, loose).major
	}

	exports.minor = minor;
	function minor (a, loose) {
	  return new SemVer(a, loose).minor
	}

	exports.patch = patch;
	function patch (a, loose) {
	  return new SemVer(a, loose).patch
	}

	exports.compare = compare;
	function compare (a, b, loose) {
	  return new SemVer(a, loose).compare(new SemVer(b, loose))
	}

	exports.compareLoose = compareLoose;
	function compareLoose (a, b) {
	  return compare(a, b, true)
	}

	exports.compareBuild = compareBuild;
	function compareBuild (a, b, loose) {
	  var versionA = new SemVer(a, loose);
	  var versionB = new SemVer(b, loose);
	  return versionA.compare(versionB) || versionA.compareBuild(versionB)
	}

	exports.rcompare = rcompare;
	function rcompare (a, b, loose) {
	  return compare(b, a, loose)
	}

	exports.sort = sort;
	function sort (list, loose) {
	  return list.sort(function (a, b) {
	    return exports.compareBuild(a, b, loose)
	  })
	}

	exports.rsort = rsort;
	function rsort (list, loose) {
	  return list.sort(function (a, b) {
	    return exports.compareBuild(b, a, loose)
	  })
	}

	exports.gt = gt;
	function gt (a, b, loose) {
	  return compare(a, b, loose) > 0
	}

	exports.lt = lt;
	function lt (a, b, loose) {
	  return compare(a, b, loose) < 0
	}

	exports.eq = eq;
	function eq (a, b, loose) {
	  return compare(a, b, loose) === 0
	}

	exports.neq = neq;
	function neq (a, b, loose) {
	  return compare(a, b, loose) !== 0
	}

	exports.gte = gte;
	function gte (a, b, loose) {
	  return compare(a, b, loose) >= 0
	}

	exports.lte = lte;
	function lte (a, b, loose) {
	  return compare(a, b, loose) <= 0
	}

	exports.cmp = cmp;
	function cmp (a, op, b, loose) {
	  switch (op) {
	    case '===':
	      if (typeof a === 'object')
	        a = a.version;
	      if (typeof b === 'object')
	        b = b.version;
	      return a === b

	    case '!==':
	      if (typeof a === 'object')
	        a = a.version;
	      if (typeof b === 'object')
	        b = b.version;
	      return a !== b

	    case '':
	    case '=':
	    case '==':
	      return eq(a, b, loose)

	    case '!=':
	      return neq(a, b, loose)

	    case '>':
	      return gt(a, b, loose)

	    case '>=':
	      return gte(a, b, loose)

	    case '<':
	      return lt(a, b, loose)

	    case '<=':
	      return lte(a, b, loose)

	    default:
	      throw new TypeError('Invalid operator: ' + op)
	  }
	}

	exports.Comparator = Comparator;
	function Comparator (comp, options) {
	  if (!options || typeof options !== 'object') {
	    options = {
	      loose: !!options,
	      includePrerelease: false
	    };
	  }

	  if (comp instanceof Comparator) {
	    if (comp.loose === !!options.loose) {
	      return comp
	    } else {
	      comp = comp.value;
	    }
	  }

	  if (!(this instanceof Comparator)) {
	    return new Comparator(comp, options)
	  }

	  debug('comparator', comp, options);
	  this.options = options;
	  this.loose = !!options.loose;
	  this.parse(comp);

	  if (this.semver === ANY) {
	    this.value = '';
	  } else {
	    this.value = this.operator + this.semver.version;
	  }

	  debug('comp', this);
	}

	var ANY = {};
	Comparator.prototype.parse = function (comp) {
	  var r = this.options.loose ? re[t.COMPARATORLOOSE] : re[t.COMPARATOR];
	  var m = comp.match(r);

	  if (!m) {
	    throw new TypeError('Invalid comparator: ' + comp)
	  }

	  this.operator = m[1] !== undefined ? m[1] : '';
	  if (this.operator === '=') {
	    this.operator = '';
	  }

	  // if it literally is just '>' or '' then allow anything.
	  if (!m[2]) {
	    this.semver = ANY;
	  } else {
	    this.semver = new SemVer(m[2], this.options.loose);
	  }
	};

	Comparator.prototype.toString = function () {
	  return this.value
	};

	Comparator.prototype.test = function (version) {
	  debug('Comparator.test', version, this.options.loose);

	  if (this.semver === ANY || version === ANY) {
	    return true
	  }

	  if (typeof version === 'string') {
	    try {
	      version = new SemVer(version, this.options);
	    } catch (er) {
	      return false
	    }
	  }

	  return cmp(version, this.operator, this.semver, this.options)
	};

	Comparator.prototype.intersects = function (comp, options) {
	  if (!(comp instanceof Comparator)) {
	    throw new TypeError('a Comparator is required')
	  }

	  if (!options || typeof options !== 'object') {
	    options = {
	      loose: !!options,
	      includePrerelease: false
	    };
	  }

	  var rangeTmp;

	  if (this.operator === '') {
	    if (this.value === '') {
	      return true
	    }
	    rangeTmp = new Range(comp.value, options);
	    return satisfies(this.value, rangeTmp, options)
	  } else if (comp.operator === '') {
	    if (comp.value === '') {
	      return true
	    }
	    rangeTmp = new Range(this.value, options);
	    return satisfies(comp.semver, rangeTmp, options)
	  }

	  var sameDirectionIncreasing =
	    (this.operator === '>=' || this.operator === '>') &&
	    (comp.operator === '>=' || comp.operator === '>');
	  var sameDirectionDecreasing =
	    (this.operator === '<=' || this.operator === '<') &&
	    (comp.operator === '<=' || comp.operator === '<');
	  var sameSemVer = this.semver.version === comp.semver.version;
	  var differentDirectionsInclusive =
	    (this.operator === '>=' || this.operator === '<=') &&
	    (comp.operator === '>=' || comp.operator === '<=');
	  var oppositeDirectionsLessThan =
	    cmp(this.semver, '<', comp.semver, options) &&
	    ((this.operator === '>=' || this.operator === '>') &&
	    (comp.operator === '<=' || comp.operator === '<'));
	  var oppositeDirectionsGreaterThan =
	    cmp(this.semver, '>', comp.semver, options) &&
	    ((this.operator === '<=' || this.operator === '<') &&
	    (comp.operator === '>=' || comp.operator === '>'));

	  return sameDirectionIncreasing || sameDirectionDecreasing ||
	    (sameSemVer && differentDirectionsInclusive) ||
	    oppositeDirectionsLessThan || oppositeDirectionsGreaterThan
	};

	exports.Range = Range;
	function Range (range, options) {
	  if (!options || typeof options !== 'object') {
	    options = {
	      loose: !!options,
	      includePrerelease: false
	    };
	  }

	  if (range instanceof Range) {
	    if (range.loose === !!options.loose &&
	        range.includePrerelease === !!options.includePrerelease) {
	      return range
	    } else {
	      return new Range(range.raw, options)
	    }
	  }

	  if (range instanceof Comparator) {
	    return new Range(range.value, options)
	  }

	  if (!(this instanceof Range)) {
	    return new Range(range, options)
	  }

	  this.options = options;
	  this.loose = !!options.loose;
	  this.includePrerelease = !!options.includePrerelease;

	  // First, split based on boolean or ||
	  this.raw = range;
	  this.set = range.split(/\s*\|\|\s*/).map(function (range) {
	    return this.parseRange(range.trim())
	  }, this).filter(function (c) {
	    // throw out any that are not relevant for whatever reason
	    return c.length
	  });

	  if (!this.set.length) {
	    throw new TypeError('Invalid SemVer Range: ' + range)
	  }

	  this.format();
	}

	Range.prototype.format = function () {
	  this.range = this.set.map(function (comps) {
	    return comps.join(' ').trim()
	  }).join('||').trim();
	  return this.range
	};

	Range.prototype.toString = function () {
	  return this.range
	};

	Range.prototype.parseRange = function (range) {
	  var loose = this.options.loose;
	  range = range.trim();
	  // `1.2.3 - 1.2.4` => `>=1.2.3 <=1.2.4`
	  var hr = loose ? re[t.HYPHENRANGELOOSE] : re[t.HYPHENRANGE];
	  range = range.replace(hr, hyphenReplace);
	  debug('hyphen replace', range);
	  // `> 1.2.3 < 1.2.5` => `>1.2.3 <1.2.5`
	  range = range.replace(re[t.COMPARATORTRIM], comparatorTrimReplace);
	  debug('comparator trim', range, re[t.COMPARATORTRIM]);

	  // `~ 1.2.3` => `~1.2.3`
	  range = range.replace(re[t.TILDETRIM], tildeTrimReplace);

	  // `^ 1.2.3` => `^1.2.3`
	  range = range.replace(re[t.CARETTRIM], caretTrimReplace);

	  // normalize spaces
	  range = range.split(/\s+/).join(' ');

	  // At this point, the range is completely trimmed and
	  // ready to be split into comparators.

	  var compRe = loose ? re[t.COMPARATORLOOSE] : re[t.COMPARATOR];
	  var set = range.split(' ').map(function (comp) {
	    return parseComparator(comp, this.options)
	  }, this).join(' ').split(/\s+/);
	  if (this.options.loose) {
	    // in loose mode, throw out any that are not valid comparators
	    set = set.filter(function (comp) {
	      return !!comp.match(compRe)
	    });
	  }
	  set = set.map(function (comp) {
	    return new Comparator(comp, this.options)
	  }, this);

	  return set
	};

	Range.prototype.intersects = function (range, options) {
	  if (!(range instanceof Range)) {
	    throw new TypeError('a Range is required')
	  }

	  return this.set.some(function (thisComparators) {
	    return (
	      isSatisfiable(thisComparators, options) &&
	      range.set.some(function (rangeComparators) {
	        return (
	          isSatisfiable(rangeComparators, options) &&
	          thisComparators.every(function (thisComparator) {
	            return rangeComparators.every(function (rangeComparator) {
	              return thisComparator.intersects(rangeComparator, options)
	            })
	          })
	        )
	      })
	    )
	  })
	};

	// take a set of comparators and determine whether there
	// exists a version which can satisfy it
	function isSatisfiable (comparators, options) {
	  var result = true;
	  var remainingComparators = comparators.slice();
	  var testComparator = remainingComparators.pop();

	  while (result && remainingComparators.length) {
	    result = remainingComparators.every(function (otherComparator) {
	      return testComparator.intersects(otherComparator, options)
	    });

	    testComparator = remainingComparators.pop();
	  }

	  return result
	}

	// Mostly just for testing and legacy API reasons
	exports.toComparators = toComparators;
	function toComparators (range, options) {
	  return new Range(range, options).set.map(function (comp) {
	    return comp.map(function (c) {
	      return c.value
	    }).join(' ').trim().split(' ')
	  })
	}

	// comprised of xranges, tildes, stars, and gtlt's at this point.
	// already replaced the hyphen ranges
	// turn into a set of JUST comparators.
	function parseComparator (comp, options) {
	  debug('comp', comp, options);
	  comp = replaceCarets(comp, options);
	  debug('caret', comp);
	  comp = replaceTildes(comp, options);
	  debug('tildes', comp);
	  comp = replaceXRanges(comp, options);
	  debug('xrange', comp);
	  comp = replaceStars(comp, options);
	  debug('stars', comp);
	  return comp
	}

	function isX (id) {
	  return !id || id.toLowerCase() === 'x' || id === '*'
	}

	// ~, ~> --> * (any, kinda silly)
	// ~2, ~2.x, ~2.x.x, ~>2, ~>2.x ~>2.x.x --> >=2.0.0 <3.0.0
	// ~2.0, ~2.0.x, ~>2.0, ~>2.0.x --> >=2.0.0 <2.1.0
	// ~1.2, ~1.2.x, ~>1.2, ~>1.2.x --> >=1.2.0 <1.3.0
	// ~1.2.3, ~>1.2.3 --> >=1.2.3 <1.3.0
	// ~1.2.0, ~>1.2.0 --> >=1.2.0 <1.3.0
	function replaceTildes (comp, options) {
	  return comp.trim().split(/\s+/).map(function (comp) {
	    return replaceTilde(comp, options)
	  }).join(' ')
	}

	function replaceTilde (comp, options) {
	  var r = options.loose ? re[t.TILDELOOSE] : re[t.TILDE];
	  return comp.replace(r, function (_, M, m, p, pr) {
	    debug('tilde', comp, _, M, m, p, pr);
	    var ret;

	    if (isX(M)) {
	      ret = '';
	    } else if (isX(m)) {
	      ret = '>=' + M + '.0.0 <' + (+M + 1) + '.0.0';
	    } else if (isX(p)) {
	      // ~1.2 == >=1.2.0 <1.3.0
	      ret = '>=' + M + '.' + m + '.0 <' + M + '.' + (+m + 1) + '.0';
	    } else if (pr) {
	      debug('replaceTilde pr', pr);
	      ret = '>=' + M + '.' + m + '.' + p + '-' + pr +
	            ' <' + M + '.' + (+m + 1) + '.0';
	    } else {
	      // ~1.2.3 == >=1.2.3 <1.3.0
	      ret = '>=' + M + '.' + m + '.' + p +
	            ' <' + M + '.' + (+m + 1) + '.0';
	    }

	    debug('tilde return', ret);
	    return ret
	  })
	}

	// ^ --> * (any, kinda silly)
	// ^2, ^2.x, ^2.x.x --> >=2.0.0 <3.0.0
	// ^2.0, ^2.0.x --> >=2.0.0 <3.0.0
	// ^1.2, ^1.2.x --> >=1.2.0 <2.0.0
	// ^1.2.3 --> >=1.2.3 <2.0.0
	// ^1.2.0 --> >=1.2.0 <2.0.0
	function replaceCarets (comp, options) {
	  return comp.trim().split(/\s+/).map(function (comp) {
	    return replaceCaret(comp, options)
	  }).join(' ')
	}

	function replaceCaret (comp, options) {
	  debug('caret', comp, options);
	  var r = options.loose ? re[t.CARETLOOSE] : re[t.CARET];
	  return comp.replace(r, function (_, M, m, p, pr) {
	    debug('caret', comp, _, M, m, p, pr);
	    var ret;

	    if (isX(M)) {
	      ret = '';
	    } else if (isX(m)) {
	      ret = '>=' + M + '.0.0 <' + (+M + 1) + '.0.0';
	    } else if (isX(p)) {
	      if (M === '0') {
	        ret = '>=' + M + '.' + m + '.0 <' + M + '.' + (+m + 1) + '.0';
	      } else {
	        ret = '>=' + M + '.' + m + '.0 <' + (+M + 1) + '.0.0';
	      }
	    } else if (pr) {
	      debug('replaceCaret pr', pr);
	      if (M === '0') {
	        if (m === '0') {
	          ret = '>=' + M + '.' + m + '.' + p + '-' + pr +
	                ' <' + M + '.' + m + '.' + (+p + 1);
	        } else {
	          ret = '>=' + M + '.' + m + '.' + p + '-' + pr +
	                ' <' + M + '.' + (+m + 1) + '.0';
	        }
	      } else {
	        ret = '>=' + M + '.' + m + '.' + p + '-' + pr +
	              ' <' + (+M + 1) + '.0.0';
	      }
	    } else {
	      debug('no pr');
	      if (M === '0') {
	        if (m === '0') {
	          ret = '>=' + M + '.' + m + '.' + p +
	                ' <' + M + '.' + m + '.' + (+p + 1);
	        } else {
	          ret = '>=' + M + '.' + m + '.' + p +
	                ' <' + M + '.' + (+m + 1) + '.0';
	        }
	      } else {
	        ret = '>=' + M + '.' + m + '.' + p +
	              ' <' + (+M + 1) + '.0.0';
	      }
	    }

	    debug('caret return', ret);
	    return ret
	  })
	}

	function replaceXRanges (comp, options) {
	  debug('replaceXRanges', comp, options);
	  return comp.split(/\s+/).map(function (comp) {
	    return replaceXRange(comp, options)
	  }).join(' ')
	}

	function replaceXRange (comp, options) {
	  comp = comp.trim();
	  var r = options.loose ? re[t.XRANGELOOSE] : re[t.XRANGE];
	  return comp.replace(r, function (ret, gtlt, M, m, p, pr) {
	    debug('xRange', comp, ret, gtlt, M, m, p, pr);
	    var xM = isX(M);
	    var xm = xM || isX(m);
	    var xp = xm || isX(p);
	    var anyX = xp;

	    if (gtlt === '=' && anyX) {
	      gtlt = '';
	    }

	    // if we're including prereleases in the match, then we need
	    // to fix this to -0, the lowest possible prerelease value
	    pr = options.includePrerelease ? '-0' : '';

	    if (xM) {
	      if (gtlt === '>' || gtlt === '<') {
	        // nothing is allowed
	        ret = '<0.0.0-0';
	      } else {
	        // nothing is forbidden
	        ret = '*';
	      }
	    } else if (gtlt && anyX) {
	      // we know patch is an x, because we have any x at all.
	      // replace X with 0
	      if (xm) {
	        m = 0;
	      }
	      p = 0;

	      if (gtlt === '>') {
	        // >1 => >=2.0.0
	        // >1.2 => >=1.3.0
	        // >1.2.3 => >= 1.2.4
	        gtlt = '>=';
	        if (xm) {
	          M = +M + 1;
	          m = 0;
	          p = 0;
	        } else {
	          m = +m + 1;
	          p = 0;
	        }
	      } else if (gtlt === '<=') {
	        // <=0.7.x is actually <0.8.0, since any 0.7.x should
	        // pass.  Similarly, <=7.x is actually <8.0.0, etc.
	        gtlt = '<';
	        if (xm) {
	          M = +M + 1;
	        } else {
	          m = +m + 1;
	        }
	      }

	      ret = gtlt + M + '.' + m + '.' + p + pr;
	    } else if (xm) {
	      ret = '>=' + M + '.0.0' + pr + ' <' + (+M + 1) + '.0.0' + pr;
	    } else if (xp) {
	      ret = '>=' + M + '.' + m + '.0' + pr +
	        ' <' + M + '.' + (+m + 1) + '.0' + pr;
	    }

	    debug('xRange return', ret);

	    return ret
	  })
	}

	// Because * is AND-ed with everything else in the comparator,
	// and '' means "any version", just remove the *s entirely.
	function replaceStars (comp, options) {
	  debug('replaceStars', comp, options);
	  // Looseness is ignored here.  star is always as loose as it gets!
	  return comp.trim().replace(re[t.STAR], '')
	}

	// This function is passed to string.replace(re[t.HYPHENRANGE])
	// M, m, patch, prerelease, build
	// 1.2 - 3.4.5 => >=1.2.0 <=3.4.5
	// 1.2.3 - 3.4 => >=1.2.0 <3.5.0 Any 3.4.x will do
	// 1.2 - 3.4 => >=1.2.0 <3.5.0
	function hyphenReplace ($0,
	  from, fM, fm, fp, fpr, fb,
	  to, tM, tm, tp, tpr, tb) {
	  if (isX(fM)) {
	    from = '';
	  } else if (isX(fm)) {
	    from = '>=' + fM + '.0.0';
	  } else if (isX(fp)) {
	    from = '>=' + fM + '.' + fm + '.0';
	  } else {
	    from = '>=' + from;
	  }

	  if (isX(tM)) {
	    to = '';
	  } else if (isX(tm)) {
	    to = '<' + (+tM + 1) + '.0.0';
	  } else if (isX(tp)) {
	    to = '<' + tM + '.' + (+tm + 1) + '.0';
	  } else if (tpr) {
	    to = '<=' + tM + '.' + tm + '.' + tp + '-' + tpr;
	  } else {
	    to = '<=' + to;
	  }

	  return (from + ' ' + to).trim()
	}

	// if ANY of the sets match ALL of its comparators, then pass
	Range.prototype.test = function (version) {
	  if (!version) {
	    return false
	  }

	  if (typeof version === 'string') {
	    try {
	      version = new SemVer(version, this.options);
	    } catch (er) {
	      return false
	    }
	  }

	  for (var i = 0; i < this.set.length; i++) {
	    if (testSet(this.set[i], version, this.options)) {
	      return true
	    }
	  }
	  return false
	};

	function testSet (set, version, options) {
	  for (var i = 0; i < set.length; i++) {
	    if (!set[i].test(version)) {
	      return false
	    }
	  }

	  if (version.prerelease.length && !options.includePrerelease) {
	    // Find the set of versions that are allowed to have prereleases
	    // For example, ^1.2.3-pr.1 desugars to >=1.2.3-pr.1 <2.0.0
	    // That should allow `1.2.3-pr.2` to pass.
	    // However, `1.2.4-alpha.notready` should NOT be allowed,
	    // even though it's within the range set by the comparators.
	    for (i = 0; i < set.length; i++) {
	      debug(set[i].semver);
	      if (set[i].semver === ANY) {
	        continue
	      }

	      if (set[i].semver.prerelease.length > 0) {
	        var allowed = set[i].semver;
	        if (allowed.major === version.major &&
	            allowed.minor === version.minor &&
	            allowed.patch === version.patch) {
	          return true
	        }
	      }
	    }

	    // Version has a -pre, but it's not one of the ones we like.
	    return false
	  }

	  return true
	}

	exports.satisfies = satisfies;
	function satisfies (version, range, options) {
	  try {
	    range = new Range(range, options);
	  } catch (er) {
	    return false
	  }
	  return range.test(version)
	}

	exports.maxSatisfying = maxSatisfying;
	function maxSatisfying (versions, range, options) {
	  var max = null;
	  var maxSV = null;
	  try {
	    var rangeObj = new Range(range, options);
	  } catch (er) {
	    return null
	  }
	  versions.forEach(function (v) {
	    if (rangeObj.test(v)) {
	      // satisfies(v, range, options)
	      if (!max || maxSV.compare(v) === -1) {
	        // compare(max, v, true)
	        max = v;
	        maxSV = new SemVer(max, options);
	      }
	    }
	  });
	  return max
	}

	exports.minSatisfying = minSatisfying;
	function minSatisfying (versions, range, options) {
	  var min = null;
	  var minSV = null;
	  try {
	    var rangeObj = new Range(range, options);
	  } catch (er) {
	    return null
	  }
	  versions.forEach(function (v) {
	    if (rangeObj.test(v)) {
	      // satisfies(v, range, options)
	      if (!min || minSV.compare(v) === 1) {
	        // compare(min, v, true)
	        min = v;
	        minSV = new SemVer(min, options);
	      }
	    }
	  });
	  return min
	}

	exports.minVersion = minVersion;
	function minVersion (range, loose) {
	  range = new Range(range, loose);

	  var minver = new SemVer('0.0.0');
	  if (range.test(minver)) {
	    return minver
	  }

	  minver = new SemVer('0.0.0-0');
	  if (range.test(minver)) {
	    return minver
	  }

	  minver = null;
	  for (var i = 0; i < range.set.length; ++i) {
	    var comparators = range.set[i];

	    comparators.forEach(function (comparator) {
	      // Clone to avoid manipulating the comparator's semver object.
	      var compver = new SemVer(comparator.semver.version);
	      switch (comparator.operator) {
	        case '>':
	          if (compver.prerelease.length === 0) {
	            compver.patch++;
	          } else {
	            compver.prerelease.push(0);
	          }
	          compver.raw = compver.format();
	          /* fallthrough */
	        case '':
	        case '>=':
	          if (!minver || gt(minver, compver)) {
	            minver = compver;
	          }
	          break
	        case '<':
	        case '<=':
	          /* Ignore maximum versions */
	          break
	        /* istanbul ignore next */
	        default:
	          throw new Error('Unexpected operation: ' + comparator.operator)
	      }
	    });
	  }

	  if (minver && range.test(minver)) {
	    return minver
	  }

	  return null
	}

	exports.validRange = validRange;
	function validRange (range, options) {
	  try {
	    // Return '*' instead of '' so that truthiness works.
	    // This will throw if it's invalid anyway
	    return new Range(range, options).range || '*'
	  } catch (er) {
	    return null
	  }
	}

	// Determine if version is less than all the versions possible in the range
	exports.ltr = ltr;
	function ltr (version, range, options) {
	  return outside(version, range, '<', options)
	}

	// Determine if version is greater than all the versions possible in the range.
	exports.gtr = gtr;
	function gtr (version, range, options) {
	  return outside(version, range, '>', options)
	}

	exports.outside = outside;
	function outside (version, range, hilo, options) {
	  version = new SemVer(version, options);
	  range = new Range(range, options);

	  var gtfn, ltefn, ltfn, comp, ecomp;
	  switch (hilo) {
	    case '>':
	      gtfn = gt;
	      ltefn = lte;
	      ltfn = lt;
	      comp = '>';
	      ecomp = '>=';
	      break
	    case '<':
	      gtfn = lt;
	      ltefn = gte;
	      ltfn = gt;
	      comp = '<';
	      ecomp = '<=';
	      break
	    default:
	      throw new TypeError('Must provide a hilo val of "<" or ">"')
	  }

	  // If it satisifes the range it is not outside
	  if (satisfies(version, range, options)) {
	    return false
	  }

	  // From now on, variable terms are as if we're in "gtr" mode.
	  // but note that everything is flipped for the "ltr" function.

	  for (var i = 0; i < range.set.length; ++i) {
	    var comparators = range.set[i];

	    var high = null;
	    var low = null;

	    comparators.forEach(function (comparator) {
	      if (comparator.semver === ANY) {
	        comparator = new Comparator('>=0.0.0');
	      }
	      high = high || comparator;
	      low = low || comparator;
	      if (gtfn(comparator.semver, high.semver, options)) {
	        high = comparator;
	      } else if (ltfn(comparator.semver, low.semver, options)) {
	        low = comparator;
	      }
	    });

	    // If the edge version comparator has a operator then our version
	    // isn't outside it
	    if (high.operator === comp || high.operator === ecomp) {
	      return false
	    }

	    // If the lowest version comparator has an operator and our version
	    // is less than it then it isn't higher than the range
	    if ((!low.operator || low.operator === comp) &&
	        ltefn(version, low.semver)) {
	      return false
	    } else if (low.operator === ecomp && ltfn(version, low.semver)) {
	      return false
	    }
	  }
	  return true
	}

	exports.prerelease = prerelease;
	function prerelease (version, options) {
	  var parsed = parse(version, options);
	  return (parsed && parsed.prerelease.length) ? parsed.prerelease : null
	}

	exports.intersects = intersects;
	function intersects (r1, r2, options) {
	  r1 = new Range(r1, options);
	  r2 = new Range(r2, options);
	  return r1.intersects(r2)
	}

	exports.coerce = coerce;
	function coerce (version, options) {
	  if (version instanceof SemVer) {
	    return version
	  }

	  if (typeof version === 'number') {
	    version = String(version);
	  }

	  if (typeof version !== 'string') {
	    return null
	  }

	  options = options || {};

	  var match = null;
	  if (!options.rtl) {
	    match = version.match(re[t.COERCE]);
	  } else {
	    // Find the right-most coercible string that does not share
	    // a terminus with a more left-ward coercible string.
	    // Eg, '1.2.3.4' wants to coerce '2.3.4', not '3.4' or '4'
	    //
	    // Walk through the string checking with a /g regexp
	    // Manually set the index so as to pick up overlapping matches.
	    // Stop when we get a match that ends at the string end, since no
	    // coercible string can be more right-ward without the same terminus.
	    var next;
	    while ((next = re[t.COERCERTL].exec(version)) &&
	      (!match || match.index + match[0].length !== version.length)
	    ) {
	      if (!match ||
	          next.index + next[0].length !== match.index + match[0].length) {
	        match = next;
	      }
	      re[t.COERCERTL].lastIndex = next.index + next[1].length + next[2].length;
	    }
	    // leave it in a clean state
	    re[t.COERCERTL].lastIndex = -1;
	  }

	  if (match === null) {
	    return null
	  }

	  return parse(match[2] +
	    '.' + (match[3] || '0') +
	    '.' + (match[4] || '0'), options)
	}
} (semver$1, semver$1.exports));

const semver = semver$1.exports;

var semverTruncate = (version, type) => {
	if (!['major', 'minor', 'patch'].includes(type)) {
		throw new TypeError(`Invalid version type: ${version}`);
	}

	version = semver.parse(version, {loose: true});

	if (!version) {
		throw new Error(`Version ${version} is not valid semver`);
	}

	version.build = '';
	version.prerelease = '';

	if (type === 'minor') {
		version.patch = 0;
	}

	if (type === 'major') {
		version.patch = 0;
		version.minor = 0;
	}

	return version.format();
};

async function binaryVersionCheck(binary, semverRange, options) {
	if (typeof binary !== 'string' || typeof semverRange !== 'string') {
		throw new TypeError('`binary` and `semverRange` arguments required');
	}

	if (!semver$2.validRange(semverRange)) {
		throw new Error('Invalid version range');
	}

	const version = await binaryVersion(binary, options);

	if (semver$2.satisfies(semverTruncate(version, 'patch'), semverRange)) {
		return;
	}

	const error = new Error(`${binary} ${version} doesn't satisfy the version requirement of ${semverRange}`);
	error.name = 'InvalidBinaryVersion';
	throw error;
}

var contentDisposition$1 = {exports: {}};

/*!
 * content-disposition
 * Copyright(c) 2014-2017 Douglas Christopher Wilson
 * MIT Licensed
 */

/**
 * Module exports.
 * @public
 */

contentDisposition$1.exports = contentDisposition;
contentDisposition$1.exports.parse = parse;

/**
 * Module dependencies.
 * @private
 */

var basename = path__default["default"].basename;
var Buffer$1 = safeBuffer.exports.Buffer;

/**
 * RegExp to match non attr-char, *after* encodeURIComponent (i.e. not including "%")
 * @private
 */

var ENCODE_URL_ATTR_CHAR_REGEXP = /[\x00-\x20"'()*,/:;<=>?@[\\\]{}\x7f]/g; // eslint-disable-line no-control-regex

/**
 * RegExp to match percent encoding escape.
 * @private
 */

var HEX_ESCAPE_REGEXP = /%[0-9A-Fa-f]{2}/;
var HEX_ESCAPE_REPLACE_REGEXP = /%([0-9A-Fa-f]{2})/g;

/**
 * RegExp to match non-latin1 characters.
 * @private
 */

var NON_LATIN1_REGEXP = /[^\x20-\x7e\xa0-\xff]/g;

/**
 * RegExp to match quoted-pair in RFC 2616
 *
 * quoted-pair = "\" CHAR
 * CHAR        = <any US-ASCII character (octets 0 - 127)>
 * @private
 */

var QESC_REGEXP = /\\([\u0000-\u007f])/g; // eslint-disable-line no-control-regex

/**
 * RegExp to match chars that must be quoted-pair in RFC 2616
 * @private
 */

var QUOTE_REGEXP = /([\\"])/g;

/**
 * RegExp for various RFC 2616 grammar
 *
 * parameter     = token "=" ( token | quoted-string )
 * token         = 1*<any CHAR except CTLs or separators>
 * separators    = "(" | ")" | "<" | ">" | "@"
 *               | "," | ";" | ":" | "\" | <">
 *               | "/" | "[" | "]" | "?" | "="
 *               | "{" | "}" | SP | HT
 * quoted-string = ( <"> *(qdtext | quoted-pair ) <"> )
 * qdtext        = <any TEXT except <">>
 * quoted-pair   = "\" CHAR
 * CHAR          = <any US-ASCII character (octets 0 - 127)>
 * TEXT          = <any OCTET except CTLs, but including LWS>
 * LWS           = [CRLF] 1*( SP | HT )
 * CRLF          = CR LF
 * CR            = <US-ASCII CR, carriage return (13)>
 * LF            = <US-ASCII LF, linefeed (10)>
 * SP            = <US-ASCII SP, space (32)>
 * HT            = <US-ASCII HT, horizontal-tab (9)>
 * CTL           = <any US-ASCII control character (octets 0 - 31) and DEL (127)>
 * OCTET         = <any 8-bit sequence of data>
 * @private
 */

var PARAM_REGEXP = /;[\x09\x20]*([!#$%&'*+.0-9A-Z^_`a-z|~-]+)[\x09\x20]*=[\x09\x20]*("(?:[\x20!\x23-\x5b\x5d-\x7e\x80-\xff]|\\[\x20-\x7e])*"|[!#$%&'*+.0-9A-Z^_`a-z|~-]+)[\x09\x20]*/g; // eslint-disable-line no-control-regex
var TEXT_REGEXP = /^[\x20-\x7e\x80-\xff]+$/;
var TOKEN_REGEXP = /^[!#$%&'*+.0-9A-Z^_`a-z|~-]+$/;

/**
 * RegExp for various RFC 5987 grammar
 *
 * ext-value     = charset  "'" [ language ] "'" value-chars
 * charset       = "UTF-8" / "ISO-8859-1" / mime-charset
 * mime-charset  = 1*mime-charsetc
 * mime-charsetc = ALPHA / DIGIT
 *               / "!" / "#" / "$" / "%" / "&"
 *               / "+" / "-" / "^" / "_" / "`"
 *               / "{" / "}" / "~"
 * language      = ( 2*3ALPHA [ extlang ] )
 *               / 4ALPHA
 *               / 5*8ALPHA
 * extlang       = *3( "-" 3ALPHA )
 * value-chars   = *( pct-encoded / attr-char )
 * pct-encoded   = "%" HEXDIG HEXDIG
 * attr-char     = ALPHA / DIGIT
 *               / "!" / "#" / "$" / "&" / "+" / "-" / "."
 *               / "^" / "_" / "`" / "|" / "~"
 * @private
 */

var EXT_VALUE_REGEXP = /^([A-Za-z0-9!#$%&+\-^_`{}~]+)'(?:[A-Za-z]{2,3}(?:-[A-Za-z]{3}){0,3}|[A-Za-z]{4,8}|)'((?:%[0-9A-Fa-f]{2}|[A-Za-z0-9!#$&+.^_`|~-])+)$/;

/**
 * RegExp for various RFC 6266 grammar
 *
 * disposition-type = "inline" | "attachment" | disp-ext-type
 * disp-ext-type    = token
 * disposition-parm = filename-parm | disp-ext-parm
 * filename-parm    = "filename" "=" value
 *                  | "filename*" "=" ext-value
 * disp-ext-parm    = token "=" value
 *                  | ext-token "=" ext-value
 * ext-token        = <the characters in token, followed by "*">
 * @private
 */

var DISPOSITION_TYPE_REGEXP = /^([!#$%&'*+.0-9A-Z^_`a-z|~-]+)[\x09\x20]*(?:$|;)/; // eslint-disable-line no-control-regex

/**
 * Create an attachment Content-Disposition header.
 *
 * @param {string} [filename]
 * @param {object} [options]
 * @param {string} [options.type=attachment]
 * @param {string|boolean} [options.fallback=true]
 * @return {string}
 * @public
 */

function contentDisposition (filename, options) {
  var opts = options || {};

  // get type
  var type = opts.type || 'attachment';

  // get parameters
  var params = createparams(filename, opts.fallback);

  // format into string
  return format(new ContentDisposition(type, params))
}

/**
 * Create parameters object from filename and fallback.
 *
 * @param {string} [filename]
 * @param {string|boolean} [fallback=true]
 * @return {object}
 * @private
 */

function createparams (filename, fallback) {
  if (filename === undefined) {
    return
  }

  var params = {};

  if (typeof filename !== 'string') {
    throw new TypeError('filename must be a string')
  }

  // fallback defaults to true
  if (fallback === undefined) {
    fallback = true;
  }

  if (typeof fallback !== 'string' && typeof fallback !== 'boolean') {
    throw new TypeError('fallback must be a string or boolean')
  }

  if (typeof fallback === 'string' && NON_LATIN1_REGEXP.test(fallback)) {
    throw new TypeError('fallback must be ISO-8859-1 string')
  }

  // restrict to file base name
  var name = basename(filename);

  // determine if name is suitable for quoted string
  var isQuotedString = TEXT_REGEXP.test(name);

  // generate fallback name
  var fallbackName = typeof fallback !== 'string'
    ? fallback && getlatin1(name)
    : basename(fallback);
  var hasFallback = typeof fallbackName === 'string' && fallbackName !== name;

  // set extended filename parameter
  if (hasFallback || !isQuotedString || HEX_ESCAPE_REGEXP.test(name)) {
    params['filename*'] = name;
  }

  // set filename parameter
  if (isQuotedString || hasFallback) {
    params.filename = hasFallback
      ? fallbackName
      : name;
  }

  return params
}

/**
 * Format object to Content-Disposition header.
 *
 * @param {object} obj
 * @param {string} obj.type
 * @param {object} [obj.parameters]
 * @return {string}
 * @private
 */

function format (obj) {
  var parameters = obj.parameters;
  var type = obj.type;

  if (!type || typeof type !== 'string' || !TOKEN_REGEXP.test(type)) {
    throw new TypeError('invalid type')
  }

  // start with normalized type
  var string = String(type).toLowerCase();

  // append parameters
  if (parameters && typeof parameters === 'object') {
    var param;
    var params = Object.keys(parameters).sort();

    for (var i = 0; i < params.length; i++) {
      param = params[i];

      var val = param.substr(-1) === '*'
        ? ustring(parameters[param])
        : qstring(parameters[param]);

      string += '; ' + param + '=' + val;
    }
  }

  return string
}

/**
 * Decode a RFC 5987 field value (gracefully).
 *
 * @param {string} str
 * @return {string}
 * @private
 */

function decodefield (str) {
  var match = EXT_VALUE_REGEXP.exec(str);

  if (!match) {
    throw new TypeError('invalid extended field value')
  }

  var charset = match[1].toLowerCase();
  var encoded = match[2];
  var value;

  // to binary string
  var binary = encoded.replace(HEX_ESCAPE_REPLACE_REGEXP, pdecode);

  switch (charset) {
    case 'iso-8859-1':
      value = getlatin1(binary);
      break
    case 'utf-8':
      value = Buffer$1.from(binary, 'binary').toString('utf8');
      break
    default:
      throw new TypeError('unsupported charset in extended field')
  }

  return value
}

/**
 * Get ISO-8859-1 version of string.
 *
 * @param {string} val
 * @return {string}
 * @private
 */

function getlatin1 (val) {
  // simple Unicode -> ISO-8859-1 transformation
  return String(val).replace(NON_LATIN1_REGEXP, '?')
}

/**
 * Parse Content-Disposition header string.
 *
 * @param {string} string
 * @return {object}
 * @public
 */

function parse (string) {
  if (!string || typeof string !== 'string') {
    throw new TypeError('argument string is required')
  }

  var match = DISPOSITION_TYPE_REGEXP.exec(string);

  if (!match) {
    throw new TypeError('invalid type format')
  }

  // normalize type
  var index = match[0].length;
  var type = match[1].toLowerCase();

  var key;
  var names = [];
  var params = {};
  var value;

  // calculate index to start at
  index = PARAM_REGEXP.lastIndex = match[0].substr(-1) === ';'
    ? index - 1
    : index;

  // match parameters
  while ((match = PARAM_REGEXP.exec(string))) {
    if (match.index !== index) {
      throw new TypeError('invalid parameter format')
    }

    index += match[0].length;
    key = match[1].toLowerCase();
    value = match[2];

    if (names.indexOf(key) !== -1) {
      throw new TypeError('invalid duplicate parameter')
    }

    names.push(key);

    if (key.indexOf('*') + 1 === key.length) {
      // decode extended value
      key = key.slice(0, -1);
      value = decodefield(value);

      // overwrite existing value
      params[key] = value;
      continue
    }

    if (typeof params[key] === 'string') {
      continue
    }

    if (value[0] === '"') {
      // remove quotes and escapes
      value = value
        .substr(1, value.length - 2)
        .replace(QESC_REGEXP, '$1');
    }

    params[key] = value;
  }

  if (index !== -1 && index !== string.length) {
    throw new TypeError('invalid parameter format')
  }

  return new ContentDisposition(type, params)
}

/**
 * Percent decode a single character.
 *
 * @param {string} str
 * @param {string} hex
 * @return {string}
 * @private
 */

function pdecode (str, hex) {
  return String.fromCharCode(parseInt(hex, 16))
}

/**
 * Percent encode a single character.
 *
 * @param {string} char
 * @return {string}
 * @private
 */

function pencode (char) {
  return '%' + String(char)
    .charCodeAt(0)
    .toString(16)
    .toUpperCase()
}

/**
 * Quote a string for HTTP.
 *
 * @param {string} val
 * @return {string}
 * @private
 */

function qstring (val) {
  var str = String(val);

  return '"' + str.replace(QUOTE_REGEXP, '\\$1') + '"'
}

/**
 * Encode a Unicode string for HTTP (RFC 5987).
 *
 * @param {string} val
 * @return {string}
 * @private
 */

function ustring (val) {
  var str = String(val);

  // percent encode as UTF-8
  var encoded = encodeURIComponent(str)
    .replace(ENCODE_URL_ATTR_CHAR_REGEXP, pencode);

  return 'UTF-8\'\'' + encoded
}

/**
 * Class for parsed Content-Disposition header for v8 optimization
 *
 * @public
 * @param {string} type
 * @param {object} parameters
 * @constructor
 */

function ContentDisposition (type, parameters) {
  this.type = type;
  this.parameters = parameters;
}

var extName = {exports: {}};

var require$$0 = {
	"application/1d-interleaved-parityfec": {
	source: "iana"
},
	"application/3gpdash-qoe-report+xml": {
	source: "iana",
	charset: "UTF-8",
	compressible: true
},
	"application/3gpp-ims+xml": {
	source: "iana",
	compressible: true
},
	"application/3gpphal+json": {
	source: "iana",
	compressible: true
},
	"application/3gpphalforms+json": {
	source: "iana",
	compressible: true
},
	"application/a2l": {
	source: "iana"
},
	"application/ace+cbor": {
	source: "iana"
},
	"application/activemessage": {
	source: "iana"
},
	"application/activity+json": {
	source: "iana",
	compressible: true
},
	"application/alto-costmap+json": {
	source: "iana",
	compressible: true
},
	"application/alto-costmapfilter+json": {
	source: "iana",
	compressible: true
},
	"application/alto-directory+json": {
	source: "iana",
	compressible: true
},
	"application/alto-endpointcost+json": {
	source: "iana",
	compressible: true
},
	"application/alto-endpointcostparams+json": {
	source: "iana",
	compressible: true
},
	"application/alto-endpointprop+json": {
	source: "iana",
	compressible: true
},
	"application/alto-endpointpropparams+json": {
	source: "iana",
	compressible: true
},
	"application/alto-error+json": {
	source: "iana",
	compressible: true
},
	"application/alto-networkmap+json": {
	source: "iana",
	compressible: true
},
	"application/alto-networkmapfilter+json": {
	source: "iana",
	compressible: true
},
	"application/alto-updatestreamcontrol+json": {
	source: "iana",
	compressible: true
},
	"application/alto-updatestreamparams+json": {
	source: "iana",
	compressible: true
},
	"application/aml": {
	source: "iana"
},
	"application/andrew-inset": {
	source: "iana",
	extensions: [
		"ez"
	]
},
	"application/applefile": {
	source: "iana"
},
	"application/applixware": {
	source: "apache",
	extensions: [
		"aw"
	]
},
	"application/at+jwt": {
	source: "iana"
},
	"application/atf": {
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},
	"video/x-m4v": {
	source: "apache",
	extensions: [
		"m4v"
	]
},
	"video/x-matroska": {
	source: "apache",
	compressible: false,
	extensions: [
		"mkv",
		"mk3d",
		"mks"
	]
},
	"video/x-mng": {
	source: "apache",
	extensions: [
		"mng"
	]
},
	"video/x-ms-asf": {
	source: "apache",
	extensions: [
		"asf",
		"asx"
	]
},
	"video/x-ms-vob": {
	source: "apache",
	extensions: [
		"vob"
	]
},
	"video/x-ms-wm": {
	source: "apache",
	extensions: [
		"wm"
	]
},
	"video/x-ms-wmv": {
	source: "apache",
	compressible: false,
	extensions: [
		"wmv"
	]
},
	"video/x-ms-wmx": {
	source: "apache",
	extensions: [
		"wmx"
	]
},
	"video/x-ms-wvx": {
	source: "apache",
	extensions: [
		"wvx"
	]
},
	"video/x-msvideo": {
	source: "apache",
	extensions: [
		"avi"
	]
},
	"video/x-sgi-movie": {
	source: "apache",
	extensions: [
		"movie"
	]
},
	"video/x-smv": {
	source: "apache",
	extensions: [
		"smv"
	]
},
	"x-conference/x-cooltalk": {
	source: "apache",
	extensions: [
		"ice"
	]
},
	"x-shader/x-fragment": {
	compressible: true
},
	"x-shader/x-vertex": {
	compressible: true
}
};

/*!
 * mime-db
 * Copyright(c) 2014 Jonathan Ong
 * Copyright(c) 2015-2022 Douglas Christopher Wilson
 * MIT Licensed
 */

/**
 * Module exports.
 */

var mimeDb$1 = require$$0;

var mimeDb = mimeDb$1;

var extList$1 = function () {
	var ret = {};

	Object.keys(mimeDb).forEach(function (x) {
		var val = mimeDb[x];

		if (val.extensions && val.extensions.length > 0) {
			val.extensions.forEach(function (y) {
				ret[y] = x;
			});
		}
	});

	return ret;
};

var sortKeysLength$1 = {};

var toString = Object.prototype.toString;

var isPlainObj$1 = function (x) {
	var prototype;
	return toString.call(x) === '[object Object]' && (prototype = Object.getPrototypeOf(x), prototype === null || prototype === Object.getPrototypeOf({}));
};

var isPlainObj = isPlainObj$1;

var sortKeys$1 = function (obj, opts) {
	if (!isPlainObj(obj)) {
		throw new TypeError('Expected a plain object');
	}

	opts = opts || {};

	// DEPRECATED
	if (typeof opts === 'function') {
		opts = {compare: opts};
	}

	var deep = opts.deep;
	var seenInput = [];
	var seenOutput = [];

	var sortKeys = function (x) {
		var seenIndex = seenInput.indexOf(x);

		if (seenIndex !== -1) {
			return seenOutput[seenIndex];
		}

		var ret = {};
		var keys = Object.keys(x).sort(opts.compare);

		seenInput.push(x);
		seenOutput.push(ret);

		for (var i = 0; i < keys.length; i++) {
			var key = keys[i];
			var val = x[key];

			ret[key] = deep && isPlainObj(val) ? sortKeys(val) : val;
		}

		return ret;
	};

	return sortKeys(obj);
};

var sortKeys = sortKeys$1;

/**
 * Sort object keys by length
 *
 * @param obj
 * @api public
 */

sortKeysLength$1.desc = function (obj) {
	return sortKeys(obj, function (a, b) {
		return b.length - a.length;
	});
};

sortKeysLength$1.asc = function (obj) {
	return sortKeys(obj, function (a, b) {
		return a.length - b.length;
	});
};

const extList = extList$1;
const sortKeysLength = sortKeysLength$1;

extName.exports = str => {
	const obj = sortKeysLength.desc(extList());
	const exts = Object.keys(obj).filter(x => str.endsWith(x));

	if (exts.length === 0) {
		return [];
	}

	return exts.map(x => ({
		ext: x,
		mime: obj[x]
	}));
};

extName.exports.mime = str => {
	const obj = sortKeysLength.desc(extList());
	const exts = Object.keys(obj).filter(x => obj[x] === str);

	if (exts.length === 0) {
		return [];
	}

	return exts.map(x => ({
		ext: x,
		mime: obj[x]
	}));
};

const getExtFromMime = response => {
	const header = response.headers['content-type'];

	if (!header) {
		return null;
	}

	const exts = extName.exports.mime(header);

	if (exts.length !== 1) {
		return null;
	}

	return exts[0].ext;
};

const getFilename = async (response, data) => {
	const header = response.headers['content-disposition'];

	if (header) {
		const parsed = contentDisposition$1.exports.parse(header);

		if (parsed.parameters && parsed.parameters.filename) {
			return parsed.parameters.filename;
		}
	}

	const filename = path__default["default"].basename(new URL(response.requestUrl).pathname);

	if (!path__default["default"].extname(filename)) {
		const fileTypeResult = await fileTypeFromBuffer(data).catch(() => null);
		const ext = fileTypeResult ? fileTypeResult.ext : getExtFromMime(response);

		if (ext && ext !== 'elf') {
			return `${filename}.${ext}`;
		}
	}

	return filename;
};

/**
 * Initialize a new `BinWrapper`
 *
 * @param {Object} options
 * @api public
 */
class BinWrapper {
	constructor(options = {}) {
		this.options = options;

		this._src = [];
		this._dest = '';
		this._use = '';
		this._version = '';
	}

	/**
	 * Get or set files to download
	 *
	 * @param {String} src
	 * @param {String} os
	 * @param {String} arch
	 * @api public
	 */
	src(src, os, arch) {
		if (arguments.length === 0) {
			return this._src;
		}

		this._src.push({
			url: src,
			os,
			arch,
		});

		return this;
	}

	/**
	 * Get or set the destination
	 *
	 * @param {String} dest
	 * @api public
	 */
	dest(dest) {
		if (arguments.length === 0) {
			return this._dest;
		}

		this._dest = dest;
		return this;
	}

	/**
	 * Get or set the binary
	 *
	 * @param {String} bin
	 * @api public
	 */
	use(bin) {
		if (arguments.length === 0) {
			return this._use;
		}

		this._use = bin;
		return this;
	}

	/**
	 * Get or set a semver range to test the binary against
	 *
	 * @param {String} range
	 * @api public
	 */
	version(range) {
		if (arguments.length === 0) {
			return this._version;
		}

		this._version = range;
		return this;
	}

	/**
	 * Get path to the binary
	 *
	 * @api public
	 */
	get path() {
		return path__default["default"].join(this.dest(), this.use());
	}

	/**
	 * Run
	 *
	 * @param {Array} cmd
	 * @api public
	 */
	async run(cmd = ['--version']) {
		await this.findExisting();
		if (this.options.skipCheck) {
			return;
		}

		return this.runCheck(cmd);
	}

	/**
	 * Run binary check
	 *
	 * @param {Array} cmd
	 * @api private
	 */
	async runCheck(cmd) {
		const bin = this.path;
		if (this.version()) {
			if (cmd.length === 1 && cmd[0] === '--version') {
				return binaryVersionCheck(bin, this.version());
			}

			return binaryVersionCheck(bin, this.version(), {args: cmd});
		}

		await binCheck.exports(bin, cmd).catch(() => {
			throw new Error(`The \`${bin}\` binary doesn't seem to work correctly`);
		});
	}

	/**
	 * Find existing files
	 *
	 * @api private
	 */
	async findExisting() {
		try {
			await require$$0$3.promises.stat(this.path);
		} catch (error) {
			if (error && error.code === 'ENOENT') {
				return this.download();
			}

			throw new Error(error);
		}
	}

	/**
	 * Download files
	 *
	 * @api private
	 */
	async download() {
		const files = osFilterObj(this.src());
		const urls = [];

		if (files.length === 0) {
			throw new Error('No binary found matching your system. It\'s probably not supported.');
		}

		for (const file of files) {
			urls.push(file.url);
		}

		const downloadFile = async (url, output) => {
			const responsePromise = got(url, {
				responseType: 'buffer',
				https: {
					rejectUnauthorized: process__default["default"].env.npm_config_strict_ssl !== 'false',
				},
				...this.options.gotOptions,
			});
			const response = await responsePromise;
			const data = await responsePromise.buffer();

			if (!output) {
				return data;
			}

			const filename = this.options.filename || filenamify(await getFilename(response, data));
			const outputFilepath = path__default["default"].join(output, filename);

			await require$$0$3.promises.mkdir(path__default["default"].dirname(outputFilepath), {recursive: true});
			await require$$0$3.promises.writeFile(outputFilepath, data);
			return data;
		};

		const result = await Promise.all(urls.map(url => downloadFile(url, this.dest())));
		const resultingFiles = result.flatMap((item, index) => {
			if (Array.isArray(item)) {
				return item.map(file => file.path);
			}

			const parsedUrl = new URL(files[index].url);
			const parsedPath = path__default["default"].parse(parsedUrl.pathname);

			return parsedPath.base;
		});

		return Promise.all(resultingFiles.map(fileName => require$$0$3.promises.chmod(path__default["default"].join(this.dest(), fileName), 0o755)));
	}
}

exports.BinWrapper = BinWrapper;