diff --git a/data/shared/citizen/scripting/v8/main.js b/data/shared/citizen/scripting/v8/main.js
index cfba3db175..d30c9681ea 100644
--- a/data/shared/citizen/scripting/v8/main.js
+++ b/data/shared/citizen/scripting/v8/main.js
@@ -1,5 +1,6 @@
 // CFX JS runtime
 /// <reference path="./natives_server.d.ts" />
+/// <reference path="./msgpack.d.ts" />
 
 const EXT_FUNCREF = 10;
 const EXT_LOCALFUNCREF = 11;
@@ -41,18 +42,34 @@ const EXT_LOCALFUNCREF = 11;
 	const nextRefIdx = () => refIndex++;
 	const refFunctionsMap = new Map();
 
-	const codec = msgpack.createCodec({
-		uint8array: true,
-		preset: false,
-		binarraybuffer: true
-	});
+	/** @type {import("./msgpack").Options} */
+	const packrOptions = {
+		// use "std::map" for the underlying msgpack type for compatibility
+		useRecords: false,
+		// allow Map, Set, and Error to be serialized
+		moreTypes: true,
+		// keep compatibility Lua/C#
+		encodeUndefinedAsNil: true,
+	}
+
+	/** @type {import("./msgpack").Packr} */
+	const packr = new Packr(packrOptions);
 
-	const pack = data => msgpack.encode(data, { codec });
-	const unpack = data => msgpack.decode(data, { codec });
+	addExtension({
+		Class: Function,
+		type: EXT_FUNCREF,
+		pack: refFunctionPacker,
+		unpack: refFunctionUnpacker
+	})
+
+
+	const pack = (value) => packr.pack(value);
+	const unpack = (packed_value) => packr.unpack(packed_value);
 
 	// store for use by natives.js
 	global.msgpack_pack = pack;
 	global.msgpack_unpack = unpack;
+	global.msgpack_packr = packr;
 
 	/**
 	 * @param {Function} refFunction
@@ -72,7 +89,7 @@ const EXT_LOCALFUNCREF = 11;
 	function refFunctionPacker(refFunction) {
 		const ref = Citizen.makeRefFunction(refFunction);
 
-		return ref;
+		return Buffer.from(ref);
 	}
 
 	function refFunctionUnpacker(refSerialized) {
@@ -134,12 +151,6 @@ const EXT_LOCALFUNCREF = 11;
 		};
 	}
 
-	const AsyncFunction = (async () => {}).constructor;
-	codec.addExtPacker(EXT_FUNCREF, AsyncFunction, refFunctionPacker);
-	codec.addExtPacker(EXT_FUNCREF, Function, refFunctionPacker);
-	codec.addExtUnpacker(EXT_FUNCREF, refFunctionUnpacker);
-	codec.addExtUnpacker(EXT_LOCALFUNCREF, refFunctionUnpacker);
-
 	/**
 	 * Deletes ref function
 	 * 
diff --git a/data/shared/citizen/scripting/v8/msgpack.d.ts b/data/shared/citizen/scripting/v8/msgpack.d.ts
new file mode 100644
index 0000000000..739175d2af
--- /dev/null
+++ b/data/shared/citizen/scripting/v8/msgpack.d.ts
@@ -0,0 +1,89 @@
+export enum FLOAT32_OPTIONS {
+	NEVER = 0,
+	ALWAYS = 1,
+	DECIMAL_ROUND = 3,
+	DECIMAL_FIT = 4
+}
+
+export interface Options {
+	useFloat32?: FLOAT32_OPTIONS
+	useRecords?: boolean | ((value:any)=> boolean)
+	structures?: {}[]
+	moreTypes?: boolean
+	sequential?: boolean
+	structuredClone?: boolean
+	mapsAsObjects?: boolean
+	variableMapSize?: boolean
+	coercibleKeyAsNumber?: boolean
+	copyBuffers?: boolean
+	bundleStrings?: boolean
+	useTimestamp32?: boolean
+	largeBigIntToFloat?: boolean
+	largeBigIntToString?: boolean
+	useBigIntExtension?: boolean
+	encodeUndefinedAsNil?: boolean
+	maxSharedStructures?: number
+	maxOwnStructures?: number
+	mapAsEmptyObject?: boolean
+	setAsEmptyObject?: boolean
+	writeFunction?: () => any
+	/** @deprecated use int64AsType: 'number' */
+	int64AsNumber?: boolean
+	int64AsType?: 'bigint' | 'number' | 'string'
+	shouldShareStructure?: (keys: string[]) => boolean
+	getStructures?(): {}[]
+	saveStructures?(structures: {}[]): boolean | void
+	onInvalidDate?: () => any
+}
+interface Extension {
+	Class?: Function
+	type?: number
+	pack?(value: any): Buffer | Uint8Array
+	unpack?(messagePack: Buffer | Uint8Array): any
+	read?(datum: any): any
+	write?(instance: any): any
+}
+export type UnpackOptions = { start?: number; end?: number; lazy?: boolean; } | number;
+export class Unpackr {
+	constructor(options?: Options)
+	unpack(messagePack: Buffer | Uint8Array, options?: UnpackOptions): any
+	decode(messagePack: Buffer | Uint8Array, options?: UnpackOptions): any
+	unpackMultiple(messagePack: Buffer | Uint8Array): any[]
+	unpackMultiple(messagePack: Buffer | Uint8Array, forEach: (value: any, start?: number, end?: number) => any): void
+}
+export class Decoder extends Unpackr {}
+export function unpack(messagePack: Buffer | Uint8Array, options?: UnpackOptions): any
+export function unpackMultiple(messagePack: Buffer | Uint8Array): any[]
+export function unpackMultiple(messagePack: Buffer | Uint8Array, forEach: (value: any, start?: number, end?: number) => any): void
+export function decode(messagePack: Buffer | Uint8Array, options?: UnpackOptions): any
+export function addExtension(extension: Extension): void
+export function clearSource(): void
+export function roundFloat32(float32Number: number): number
+export const C1: {}
+export let isNativeAccelerationEnabled: boolean
+
+export class Packr extends Unpackr {
+	offset: number;
+	position: number;
+	pack(value: any, encodeOptions?: number): Buffer
+	encode(value: any, encodeOptions?: number): Buffer
+	useBuffer(buffer: Buffer | Uint8Array): void;
+	clearSharedData(): void;
+}
+export class Encoder extends Packr {}
+export function pack(value: any, encodeOptions?: number): Buffer
+export function encode(value: any, encodeOptions?: number): Buffer
+
+export const REUSE_BUFFER_MODE: number;
+export const RESET_BUFFER_MODE: number;
+export const RESERVE_START_SPACE: number;
+
+import { Transform, Readable } from 'stream'
+
+export as namespace msgpackr;
+export class UnpackrStream extends Transform {
+	constructor(options?: Options | { highWaterMark: number, emitClose: boolean, allowHalfOpen: boolean })
+}
+export class PackrStream extends Transform {
+	constructor(options?: Options | { highWaterMark: number, emitClose: boolean, allowHalfOpen: boolean })
+}
diff --git a/data/shared/citizen/scripting/v8/msgpack.js b/data/shared/citizen/scripting/v8/msgpack.js
index 670aee7789..46cf68cf59 100644
--- a/data/shared/citizen/scripting/v8/msgpack.js
+++ b/data/shared/citizen/scripting/v8/msgpack.js
@@ -1,30 +1,2331 @@
-/*
-    https://github.com/kawanet/msgpack-lite
-
-    The MIT License (MIT)
-
-    Copyright (c) 2015 Yusuke Kawasaki
-
-    Permission is hereby granted, free of charge, to any person obtaining a copy
-    of this software and associated documentation files (the "Software"), to deal
-    in the Software without restriction, including without limitation the rights
-    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-    copies of the Software, and to permit persons to whom the Software is
-    furnished to do so, subject to the following conditions:
-
-    The above copyright notice and this permission notice shall be included in all
-    copies or substantial portions of the Software.
-
-    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-    SOFTWARE.
- */
-
- // Modified to support functions packing, fork: https://github.com/thers/msgpack-lite
-
-!function(t){if("object"==typeof exports&&"undefined"!=typeof module)module.exports=t();else if("function"==typeof define&&define.amd)define([],t);else{var r;r="undefined"!=typeof window?window:"undefined"!=typeof global?global:"undefined"!=typeof self?self:this,r.msgpack=t()}}(function(){return function t(r,e,n){function i(f,u){if(!e[f]){if(!r[f]){var a="function"==typeof require&&require;if(!u&&a)return a(f,!0);if(o)return o(f,!0);var s=new Error("Cannot find module '"+f+"'");throw s.code="MODULE_NOT_FOUND",s}var c=e[f]={exports:{}};r[f][0].call(c.exports,function(t){var e=r[f][1][t];return i(e||t)},c,c.exports,t,r,e,n)}return e[f].exports}for(var o="function"==typeof require&&require,f=0;f<n.length;f++)i(n[f]);return i}({1:[function(t,r,e){e.encode=t("./encode").encode,e.decode=t("./decode").decode,e.Encoder=t("./encoder").Encoder,e.Decoder=t("./decoder").Decoder,e.createCodec=t("./ext").createCodec,e.codec=t("./codec").codec},{"./codec":10,"./decode":12,"./decoder":13,"./encode":15,"./encoder":16,"./ext":20}],2:[function(t,r,e){(function(Buffer){function t(t){return t&&t.isBuffer&&t}r.exports=t(void 0!==Buffer&&Buffer)||t(this.Buffer)||t("undefined"!=typeof window&&window.Buffer)||this.Buffer}).call(this,t("buffer").Buffer)},{buffer:30}],3:[function(t,r,e){function n(t,r){for(var e=this,n=r||(r|=0),i=t.length,o=0,f=0;f<i;)o=t.charCodeAt(f++),o<128?e[n++]=o:o<2048?(e[n++]=192|o>>>6,e[n++]=128|63&o):o<55296||o>57343?(e[n++]=224|o>>>12,e[n++]=128|o>>>6&63,e[n++]=128|63&o):(o=65536+(o-55296<<10|t.charCodeAt(f++)-56320),e[n++]=240|o>>>18,e[n++]=128|o>>>12&63,e[n++]=128|o>>>6&63,e[n++]=128|63&o);return n-r}function i(t,r,e){var n=this,i=0|r;e||(e=n.length);for(var o="",f=0;i<e;)f=n[i++],f<128?o+=String.fromCharCode(f):(192==(224&f)?f=(31&f)<<6|63&n[i++]:224==(240&f)?f=(15&f)<<12|(63&n[i++])<<6|63&n[i++]:240==(248&f)&&(f=(7&f)<<18|(63&n[i++])<<12|(63&n[i++])<<6|63&n[i++]),f>=65536?(f-=65536,o+=String.fromCharCode(55296+(f>>>10),56320+(1023&f))):o+=String.fromCharCode(f));return o}function o(t,r,e,n){var i;e||(e=0),n||0===n||(n=this.length),r||(r=0);var o=n-e;if(t===this&&e<r&&r<n)for(i=o-1;i>=0;i--)t[i+r]=this[i+e];else for(i=0;i<o;i++)t[i+r]=this[i+e];return o}e.copy=o,e.toString=i,e.write=n},{}],4:[function(t,r,e){function n(t){return new Array(t)}function i(t){if(!o.isBuffer(t)&&o.isView(t))t=o.Uint8Array.from(t);else if(o.isArrayBuffer(t))t=new Uint8Array(t);else{if("string"==typeof t)return o.from.call(e,t);if("number"==typeof t)throw new TypeError('"value" argument must not be a number')}return Array.prototype.slice.call(t)}var o=t("./bufferish"),e=r.exports=n(0);e.alloc=n,e.concat=o.concat,e.from=i},{"./bufferish":8}],5:[function(t,r,e){function n(t){return new Buffer(t)}function i(t){if(!o.isBuffer(t)&&o.isView(t))t=o.Uint8Array.from(t);else if(o.isArrayBuffer(t))t=new Uint8Array(t);else{if("string"==typeof t)return o.from.call(e,t);if("number"==typeof t)throw new TypeError('"value" argument must not be a number')}return Buffer.from&&1!==Buffer.from.length?Buffer.from(t):new Buffer(t)}var o=t("./bufferish"),Buffer=o.global,e=r.exports=o.hasBuffer?n(0):[];e.alloc=o.hasBuffer&&Buffer.alloc||n,e.concat=o.concat,e.from=i},{"./bufferish":8}],6:[function(t,r,e){function n(t,r,e,n){var o=u.isBuffer(this),a=u.isBuffer(t);if(o&&a)return this.copy(t,r,e,n);if(s||o||a||!u.isView(this)||!u.isView(t))return f.copy.call(this,t,r,e,n);var c=e||null!=n?i.call(this,e,n):this;return t.set(c,r),c.length}function i(t,r){var e=this.slice||!s&&this.subarray;if(e)return e.call(this,t,r);var i=u.alloc.call(this,r-t);return 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n(t){return"string"==typeof t?u.call(this,t):a(this).from(t)}function i(t){return a(this).alloc(t)}function o(t,r){function n(t){r+=t.length}function o(t){a+=w.copy.call(t,u,a)}r||(r=0,Array.prototype.forEach.call(t,n));var f=this!==e&&this||t[0],u=i.call(f,r),a=0;return Array.prototype.forEach.call(t,o),u}function f(t){return t instanceof ArrayBuffer||E(t)}function u(t){var r=3*t.length,e=i.call(this,r),n=w.write.call(e,t);return r!==n&&(e=w.slice.call(e,0,n)),e}function a(t){return d(t)?v:y(t)?b:p(t)?g:h?v:l?b:g}function s(){return!1}function c(t,r){return t="[object "+t+"]",function(e){return null!=e&&{}.toString.call(r?e[r]:e)===t}}var Buffer=e.global=t("./buffer-global"),h=e.hasBuffer=Buffer&&!!Buffer.isBuffer,l=e.hasArrayBuffer="undefined"!=typeof ArrayBuffer,p=e.isArray=t("isarray");e.isArrayBuffer=l?f:s;var d=e.isBuffer=h?Buffer.isBuffer:s,y=e.isView=l?ArrayBuffer.isView||c("ArrayBuffer","buffer"):s;e.alloc=i,e.concat=o,e.from=n;var 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t&&t.uint8array&&(this.bufferish=c.Uint8Array),this},e.preset=a({preset:!0})},{"./bufferish":8,isarray:34}],10:[function(t,r,e){t("./read-core"),t("./write-core"),e.codec={preset:t("./codec-base").preset}},{"./codec-base":9,"./read-core":22,"./write-core":25}],11:[function(t,r,e){function n(t){if(!(this instanceof n))return new n(t);if(t&&(this.options=t,t.codec)){var r=this.codec=t.codec;r.bufferish&&(this.bufferish=r.bufferish)}}e.DecodeBuffer=n;var i=t("./read-core").preset;t("./flex-buffer").FlexDecoder.mixin(n.prototype),n.prototype.codec=i,n.prototype.fetch=function(){return this.codec.decode(this)}},{"./flex-buffer":21,"./read-core":22}],12:[function(t,r,e){function n(t,r){var e=new i(r);return e.write(t),e.read()}e.decode=n;var i=t("./decode-buffer").DecodeBuffer},{"./decode-buffer":11}],13:[function(t,r,e){function n(t){if(!(this instanceof n))return new n(t);o.call(this,t)}e.Decoder=n;var i=t("event-lite"),o=t("./decode-buffer").DecodeBuffer;n.prototype=new 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Uint8Array&&(t.addExtPacker(17,Int8Array,c),t.addExtPacker(18,Uint8Array,c),t.addExtPacker(19,Int16Array,c),t.addExtPacker(20,Uint16Array,c),t.addExtPacker(21,Int32Array,c),t.addExtPacker(22,Uint32Array,c),t.addExtPacker(23,Float32Array,c),"undefined"!=typeof Float64Array&&t.addExtPacker(24,Float64Array,c),"undefined"!=typeof Uint8ClampedArray&&t.addExtPacker(25,Uint8ClampedArray,c),t.addExtPacker(26,ArrayBuffer,c),t.addExtPacker(29,DataView,c)),s.hasBuffer&&t.addExtPacker(27,Buffer,s.from)}function i(r){return a||(a=t("./encode").encode),a(r)}function o(t){return t.valueOf()}function f(t){t=RegExp.prototype.toString.call(t).split("/"),t.shift();var r=[t.pop()];return r.unshift(t.join("/")),r}function u(t){var r={};for(var e in h)r[e]=t[e];return r}e.setExtPackers=n;var a,s=t("./bufferish"),Buffer=s.global,c=s.Uint8Array.from,h={name:1,message:1,stack:1,columnNumber:1,fileName:1,lineNumber:1}},{"./bufferish":8,"./encode":15}],19:[function(t,r,e){function 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t=+t,r|=0,e||C(this,t,r,2,65535,0),Buffer.TYPED_ARRAY_SUPPORT?(this[r]=255&t,this[r+1]=t>>>8):D(this,t,r,!0),r+2},Buffer.prototype.writeUInt16BE=function(t,r,e){return t=+t,r|=0,e||C(this,t,r,2,65535,0),Buffer.TYPED_ARRAY_SUPPORT?(this[r]=t>>>8,this[r+1]=255&t):D(this,t,r,!1),r+2},Buffer.prototype.writeUInt32LE=function(t,r,e){return t=+t,r|=0,e||C(this,t,r,4,4294967295,0),Buffer.TYPED_ARRAY_SUPPORT?(this[r+3]=t>>>24,this[r+2]=t>>>16,this[r+1]=t>>>8,this[r]=255&t):O(this,t,r,!0),r+4},Buffer.prototype.writeUInt32BE=function(t,r,e){return t=+t,r|=0,e||C(this,t,r,4,4294967295,0),Buffer.TYPED_ARRAY_SUPPORT?(this[r]=t>>>24,this[r+1]=t>>>16,this[r+2]=t>>>8,this[r+3]=255&t):O(this,t,r,!1),r+4},Buffer.prototype.writeIntLE=function(t,r,e,n){if(t=+t,r|=0,!n){var i=Math.pow(2,8*e-1);C(this,t,r,e,i-1,-i)}var o=0,f=1,u=0;for(this[r]=255&t;++o<e&&(f*=256);)t<0&&0===u&&0!==this[r+o-1]&&(u=1),this[r+o]=(t/f>>0)-u&255;return r+e},Buffer.prototype.writeIntBE=function(t,r,e,n){if(t=+t,r|=0,!n){var i=Math.pow(2,8*e-1);C(this,t,r,e,i-1,-i)}var o=e-1,f=1,u=0;for(this[r+o]=255&t;--o>=0&&(f*=256);)t<0&&0===u&&0!==this[r+o+1]&&(u=1),this[r+o]=(t/f>>0)-u&255;return r+e},Buffer.prototype.writeInt8=function(t,r,e){return t=+t,r|=0,e||C(this,t,r,1,127,-128),Buffer.TYPED_ARRAY_SUPPORT||(t=Math.floor(t)),t<0&&(t=255+t+1),this[r]=255&t,r+1},Buffer.prototype.writeInt16LE=function(t,r,e){return t=+t,r|=0,e||C(this,t,r,2,32767,-32768),Buffer.TYPED_ARRAY_SUPPORT?(this[r]=255&t,this[r+1]=t>>>8):D(this,t,r,!0),r+2},Buffer.prototype.writeInt16BE=function(t,r,e){return t=+t,r|=0,e||C(this,t,r,2,32767,-32768),Buffer.TYPED_ARRAY_SUPPORT?(this[r]=t>>>8,this[r+1]=255&t):D(this,t,r,!1),r+2},Buffer.prototype.writeInt32LE=function(t,r,e){return t=+t,r|=0,e||C(this,t,r,4,2147483647,-2147483648),Buffer.TYPED_ARRAY_SUPPORT?(this[r]=255&t,this[r+1]=t>>>8,this[r+2]=t>>>16,this[r+3]=t>>>24):O(this,t,r,!0),r+4},Buffer.prototype.writeInt32BE=function(t,r,e){return t=+t,r|=0,e||C(this,t,r,4,2147483647,-2147483648),t<0&&(t=4294967295+t+1),Buffer.TYPED_ARRAY_SUPPORT?(this[r]=t>>>24,this[r+1]=t>>>16,this[r+2]=t>>>8,this[r+3]=255&t):O(this,t,r,!1),r+4},Buffer.prototype.writeFloatLE=function(t,r,e){return M(this,t,r,!0,e)},Buffer.prototype.writeFloatBE=function(t,r,e){return M(this,t,r,!1,e)},Buffer.prototype.writeDoubleLE=function(t,r,e){return N(this,t,r,!0,e)},Buffer.prototype.writeDoubleBE=function(t,r,e){return N(this,t,r,!1,e)},Buffer.prototype.copy=function(t,r,e,n){if(e||(e=0),n||0===n||(n=this.length),r>=t.length&&(r=t.length),r||(r=0),n>0&&n<e&&(n=e),n===e)return 0;if(0===t.length||0===this.length)return 0;if(r<0)throw new RangeError("targetStart out of bounds");if(e<0||e>=this.length)throw new RangeError("sourceStart out of bounds");if(n<0)throw new RangeError("sourceEnd out of bounds");n>this.length&&(n=this.length),t.length-r<n-e&&(n=t.length-r+e);var i,o=n-e;if(this===t&&e<r&&r<n)for(i=o-1;i>=0;--i)t[i+r]=this[i+e];else 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+(function (global, factory) {
+	typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
+	typeof define === 'function' && define.amd ? define(['exports'], factory) :
+	(global = typeof globalThis !== 'undefined' ? globalThis : global || self, factory(global.msgpackr = {}));
+})(this, (function (exports) { 'use strict';
+
+	var decoder;
+	try {
+		decoder = new TextDecoder();
+	} catch(error) {}
+	var src;
+	var srcEnd;
+	var position$1 = 0;
+	var currentUnpackr = {};
+	var currentStructures;
+	var srcString;
+	var srcStringStart = 0;
+	var srcStringEnd = 0;
+	var bundledStrings$1;
+	var referenceMap;
+	var currentExtensions = [];
+	var dataView;
+	var defaultOptions = {
+		useRecords: false,
+		mapsAsObjects: true
+	};
+	class C1Type {}
+	const C1 = new C1Type();
+	C1.name = 'MessagePack 0xC1';
+	var sequentialMode = false;
+	var inlineObjectReadThreshold = 2;
+	var readStruct;
+	var BlockedFunction; // we use search and replace to change the next call to BlockedFunction to avoid CSP issues for
+	// no-eval build
+	try {
+		new BlockedFunction ('');
+	} catch(error) {
+		// if eval variants are not supported, do not create inline object readers ever
+		inlineObjectReadThreshold = Infinity;
+	}
+
+	class Unpackr {
+		constructor(options) {
+			if (options) {
+				if (options.useRecords === false && options.mapsAsObjects === undefined)
+					options.mapsAsObjects = true;
+				if (options.sequential && options.trusted !== false) {
+					options.trusted = true;
+					if (!options.structures && options.useRecords != false) {
+						options.structures = [];
+						if (!options.maxSharedStructures)
+							options.maxSharedStructures = 0;
+					}
+				}
+				if (options.structures)
+					options.structures.sharedLength = options.structures.length;
+				else if (options.getStructures) {
+					(options.structures = []).uninitialized = true; // this is what we use to denote an uninitialized structures
+					options.structures.sharedLength = 0;
+				}
+				if (options.int64AsNumber) {
+					options.int64AsType = 'number';
+				}
+			}
+			Object.assign(this, options);
+		}
+		unpack(source, options) {
+			if (src) {
+				// re-entrant execution, save the state and restore it after we do this unpack
+				return saveState(() => {
+					clearSource();
+					return this ? this.unpack(source, options) : Unpackr.prototype.unpack.call(defaultOptions, source, options)
+				})
+			}
+			if (!source.buffer && source.constructor === ArrayBuffer)
+				source = typeof Buffer !== 'undefined' ? Buffer.from(source) : new Uint8Array(source);
+			if (typeof options === 'object') {
+				srcEnd = options.end || source.length;
+				position$1 = options.start || 0;
+			} else {
+				position$1 = 0;
+				srcEnd = options > -1 ? options : source.length;
+			}
+			srcStringEnd = 0;
+			srcString = null;
+			bundledStrings$1 = null;
+			src = source;
+			// this provides cached access to the data view for a buffer if it is getting reused, which is a recommend
+			// technique for getting data from a database where it can be copied into an existing buffer instead of creating
+			// new ones
+			try {
+				dataView = source.dataView || (source.dataView = new DataView(source.buffer, source.byteOffset, source.byteLength));
+			} catch(error) {
+				// if it doesn't have a buffer, maybe it is the wrong type of object
+				src = null;
+				if (source instanceof Uint8Array)
+					throw error
+				throw new Error('Source must be a Uint8Array or Buffer but was a ' + ((source && typeof source == 'object') ? source.constructor.name : typeof source))
+			}
+			if (this instanceof Unpackr) {
+				currentUnpackr = this;
+				if (this.structures) {
+					currentStructures = this.structures;
+					return checkedRead(options)
+				} else if (!currentStructures || currentStructures.length > 0) {
+					currentStructures = [];
+				}
+			} else {
+				currentUnpackr = defaultOptions;
+				if (!currentStructures || currentStructures.length > 0)
+					currentStructures = [];
+			}
+			return checkedRead(options)
+		}
+		unpackMultiple(source, forEach) {
+			let values, lastPosition = 0;
+			try {
+				sequentialMode = true;
+				let size = source.length;
+				let value = this ? this.unpack(source, size) : defaultUnpackr.unpack(source, size);
+				if (forEach) {
+					if (forEach(value, lastPosition, position$1) === false) return;
+					while(position$1 < size) {
+						lastPosition = position$1;
+						if (forEach(checkedRead(), lastPosition, position$1) === false) {
+							return
+						}
+					}
+				}
+				else {
+					values = [ value ];
+					while(position$1 < size) {
+						lastPosition = position$1;
+						values.push(checkedRead());
+					}
+					return values
+				}
+			} catch(error) {
+				error.lastPosition = lastPosition;
+				error.values = values;
+				throw error
+			} finally {
+				sequentialMode = false;
+				clearSource();
+			}
+		}
+		_mergeStructures(loadedStructures, existingStructures) {
+			loadedStructures = loadedStructures || [];
+			if (Object.isFrozen(loadedStructures))
+				loadedStructures = loadedStructures.map(structure => structure.slice(0));
+			for (let i = 0, l = loadedStructures.length; i < l; i++) {
+				let structure = loadedStructures[i];
+				if (structure) {
+					structure.isShared = true;
+					if (i >= 32)
+						structure.highByte = (i - 32) >> 5;
+				}
+			}
+			loadedStructures.sharedLength = loadedStructures.length;
+			for (let id in existingStructures || []) {
+				if (id >= 0) {
+					let structure = loadedStructures[id];
+					let existing = existingStructures[id];
+					if (existing) {
+						if (structure)
+							(loadedStructures.restoreStructures || (loadedStructures.restoreStructures = []))[id] = structure;
+						loadedStructures[id] = existing;
+					}
+				}
+			}
+			return this.structures = loadedStructures
+		}
+		decode(source, options) {
+			return this.unpack(source, options)
+		}
+	}
+	function checkedRead(options) {
+		try {
+			if (!currentUnpackr.trusted && !sequentialMode) {
+				let sharedLength = currentStructures.sharedLength || 0;
+				if (sharedLength < currentStructures.length)
+					currentStructures.length = sharedLength;
+			}
+			let result;
+			if (currentUnpackr.randomAccessStructure && src[position$1] < 0x40 && src[position$1] >= 0x20 && readStruct) {
+				result = readStruct(src, position$1, srcEnd, currentUnpackr);
+				src = null; // dispose of this so that recursive unpack calls don't save state
+				if (!(options && options.lazy) && result)
+					result = result.toJSON();
+				position$1 = srcEnd;
+			} else
+				result = read();
+			if (bundledStrings$1) { // bundled strings to skip past
+				position$1 = bundledStrings$1.postBundlePosition;
+				bundledStrings$1 = null;
+			}
+			if (sequentialMode)
+				// we only need to restore the structures if there was an error, but if we completed a read,
+				// we can clear this out and keep the structures we read
+				currentStructures.restoreStructures = null;
+
+			if (position$1 == srcEnd) {
+				// finished reading this source, cleanup references
+				if (currentStructures && currentStructures.restoreStructures)
+					restoreStructures();
+				currentStructures = null;
+				src = null;
+				if (referenceMap)
+					referenceMap = null;
+			} else if (position$1 > srcEnd) {
+				// over read
+				throw new Error('Unexpected end of MessagePack data')
+			} else if (!sequentialMode) {
+				let jsonView;
+				try {
+					jsonView = JSON.stringify(result, (_, value) => typeof value === "bigint" ? `${value}n` : value).slice(0, 100);
+				} catch(error) {
+					jsonView = '(JSON view not available ' + error + ')';
+				}
+				throw new Error('Data read, but end of buffer not reached ' + jsonView)
+			}
+			// else more to read, but we are reading sequentially, so don't clear source yet
+			return result
+		} catch(error) {
+			if (currentStructures && currentStructures.restoreStructures)
+				restoreStructures();
+			clearSource();
+			if (error instanceof RangeError || error.message.startsWith('Unexpected end of buffer') || position$1 > srcEnd) {
+				error.incomplete = true;
+			}
+			throw error
+		}
+	}
+
+	function restoreStructures() {
+		for (let id in currentStructures.restoreStructures) {
+			currentStructures[id] = currentStructures.restoreStructures[id];
+		}
+		currentStructures.restoreStructures = null;
+	}
+
+	function read() {
+		let token = src[position$1++];
+		if (token < 0xa0) {
+			if (token < 0x80) {
+				if (token < 0x40)
+					return token
+				else {
+					let structure = currentStructures[token & 0x3f] ||
+						currentUnpackr.getStructures && loadStructures()[token & 0x3f];
+					if (structure) {
+						if (!structure.read) {
+							structure.read = createStructureReader(structure, token & 0x3f);
+						}
+						return structure.read()
+					} else
+						return token
+				}
+			} else if (token < 0x90) {
+				// map
+				token -= 0x80;
+				if (currentUnpackr.mapsAsObjects) {
+					let object = {};
+					for (let i = 0; i < token; i++) {
+						let key = readKey();
+						if (key === '__proto__')
+							key = '__proto_';
+						object[key] = read();
+					}
+					return object
+				} else {
+					let map = new Map();
+					for (let i = 0; i < token; i++) {
+						map.set(read(), read());
+					}
+					return map
+				}
+			} else {
+				token -= 0x90;
+				let array = new Array(token);
+				for (let i = 0; i < token; i++) {
+					array[i] = read();
+				}
+				if (currentUnpackr.freezeData)
+					return Object.freeze(array)
+				return array
+			}
+		} else if (token < 0xc0) {
+			// fixstr
+			let length = token - 0xa0;
+			if (srcStringEnd >= position$1) {
+				return srcString.slice(position$1 - srcStringStart, (position$1 += length) - srcStringStart)
+			}
+			if (srcStringEnd == 0 && srcEnd < 140) {
+				// for small blocks, avoiding the overhead of the extract call is helpful
+				let string = length < 16 ? shortStringInJS(length) : longStringInJS(length);
+				if (string != null)
+					return string
+			}
+			return readFixedString(length)
+		} else {
+			let value;
+			switch (token) {
+				case 0xc0: return null
+				case 0xc1:
+					if (bundledStrings$1) {
+						value = read(); // followed by the length of the string in characters (not bytes!)
+						if (value > 0)
+							return bundledStrings$1[1].slice(bundledStrings$1.position1, bundledStrings$1.position1 += value)
+						else
+							return bundledStrings$1[0].slice(bundledStrings$1.position0, bundledStrings$1.position0 -= value)
+					}
+					return C1; // "never-used", return special object to denote that
+				case 0xc2: return false
+				case 0xc3: return true
+				case 0xc4:
+					// bin 8
+					value = src[position$1++];
+					if (value === undefined)
+						throw new Error('Unexpected end of buffer')
+					return readBin(value)
+				case 0xc5:
+					// bin 16
+					value = dataView.getUint16(position$1);
+					position$1 += 2;
+					return readBin(value)
+				case 0xc6:
+					// bin 32
+					value = dataView.getUint32(position$1);
+					position$1 += 4;
+					return readBin(value)
+				case 0xc7:
+					// ext 8
+					return readExt(src[position$1++])
+				case 0xc8:
+					// ext 16
+					value = dataView.getUint16(position$1);
+					position$1 += 2;
+					return readExt(value)
+				case 0xc9:
+					// ext 32
+					value = dataView.getUint32(position$1);
+					position$1 += 4;
+					return readExt(value)
+				case 0xca:
+					value = dataView.getFloat32(position$1);
+					if (currentUnpackr.useFloat32 > 2) {
+						// this does rounding of numbers that were encoded in 32-bit float to nearest significant decimal digit that could be preserved
+						let multiplier = mult10[((src[position$1] & 0x7f) << 1) | (src[position$1 + 1] >> 7)];
+						position$1 += 4;
+						return ((multiplier * value + (value > 0 ? 0.5 : -0.5)) >> 0) / multiplier
+					}
+					position$1 += 4;
+					return value
+				case 0xcb:
+					value = dataView.getFloat64(position$1);
+					position$1 += 8;
+					return value
+				// uint handlers
+				case 0xcc:
+					return src[position$1++]
+				case 0xcd:
+					value = dataView.getUint16(position$1);
+					position$1 += 2;
+					return value
+				case 0xce:
+					value = dataView.getUint32(position$1);
+					position$1 += 4;
+					return value
+				case 0xcf:
+					if (currentUnpackr.int64AsType === 'number') {
+						value = dataView.getUint32(position$1) * 0x100000000;
+						value += dataView.getUint32(position$1 + 4);
+					} else if (currentUnpackr.int64AsType === 'string') {
+						value = dataView.getBigUint64(position$1).toString();
+					} else if (currentUnpackr.int64AsType === 'auto') {
+						value = dataView.getBigUint64(position$1);
+						if (value<=BigInt(2)<<BigInt(52)) value=Number(value);
+					} else
+						value = dataView.getBigUint64(position$1);
+					position$1 += 8;
+					return value
+
+				// int handlers
+				case 0xd0:
+					return dataView.getInt8(position$1++)
+				case 0xd1:
+					value = dataView.getInt16(position$1);
+					position$1 += 2;
+					return value
+				case 0xd2:
+					value = dataView.getInt32(position$1);
+					position$1 += 4;
+					return value
+				case 0xd3:
+					if (currentUnpackr.int64AsType === 'number') {
+						value = dataView.getInt32(position$1) * 0x100000000;
+						value += dataView.getUint32(position$1 + 4);
+					} else if (currentUnpackr.int64AsType === 'string') {
+						value = dataView.getBigInt64(position$1).toString();
+					} else if (currentUnpackr.int64AsType === 'auto') {
+						value = dataView.getBigInt64(position$1);
+						if (value>=BigInt(-2)<<BigInt(52)&&value<=BigInt(2)<<BigInt(52)) value=Number(value);
+					} else
+						value = dataView.getBigInt64(position$1);
+					position$1 += 8;
+					return value
+
+				case 0xd4:
+					// fixext 1
+					value = src[position$1++];
+					if (value == 0x72) {
+						return recordDefinition(src[position$1++] & 0x3f)
+					} else {
+						let extension = currentExtensions[value];
+						if (extension) {
+							if (extension.read) {
+								position$1++; // skip filler byte
+								return extension.read(read())
+							} else if (extension.noBuffer) {
+								position$1++; // skip filler byte
+								return extension()
+							} else
+								return extension(src.subarray(position$1, ++position$1))
+						} else
+							throw new Error('Unknown extension ' + value)
+					}
+				case 0xd5:
+					// fixext 2
+					value = src[position$1];
+					if (value == 0x72) {
+						position$1++;
+						return recordDefinition(src[position$1++] & 0x3f, src[position$1++])
+					} else
+						return readExt(2)
+				case 0xd6:
+					// fixext 4
+					return readExt(4)
+				case 0xd7:
+					// fixext 8
+					return readExt(8)
+				case 0xd8:
+					// fixext 16
+					return readExt(16)
+				case 0xd9:
+				// str 8
+					value = src[position$1++];
+					if (srcStringEnd >= position$1) {
+						return srcString.slice(position$1 - srcStringStart, (position$1 += value) - srcStringStart)
+					}
+					return readString8(value)
+				case 0xda:
+				// str 16
+					value = dataView.getUint16(position$1);
+					position$1 += 2;
+					if (srcStringEnd >= position$1) {
+						return srcString.slice(position$1 - srcStringStart, (position$1 += value) - srcStringStart)
+					}
+					return readString16(value)
+				case 0xdb:
+				// str 32
+					value = dataView.getUint32(position$1);
+					position$1 += 4;
+					if (srcStringEnd >= position$1) {
+						return srcString.slice(position$1 - srcStringStart, (position$1 += value) - srcStringStart)
+					}
+					return readString32(value)
+				case 0xdc:
+				// array 16
+					value = dataView.getUint16(position$1);
+					position$1 += 2;
+					return readArray(value)
+				case 0xdd:
+				// array 32
+					value = dataView.getUint32(position$1);
+					position$1 += 4;
+					return readArray(value)
+				case 0xde:
+				// map 16
+					value = dataView.getUint16(position$1);
+					position$1 += 2;
+					return readMap(value)
+				case 0xdf:
+				// map 32
+					value = dataView.getUint32(position$1);
+					position$1 += 4;
+					return readMap(value)
+				default: // negative int
+					if (token >= 0xe0)
+						return token - 0x100
+					if (token === undefined) {
+						let error = new Error('Unexpected end of MessagePack data');
+						error.incomplete = true;
+						throw error
+					}
+					throw new Error('Unknown MessagePack token ' + token)
+
+			}
+		}
+	}
+	const validName = /^[a-zA-Z_$][a-zA-Z\d_$]*$/;
+	function createStructureReader(structure, firstId) {
+		function readObject() {
+			// This initial function is quick to instantiate, but runs slower. After several iterations pay the cost to build the faster function
+			if (readObject.count++ > inlineObjectReadThreshold) {
+				let readObject = structure.read = (new BlockedFunction ('r', 'return function(){return ' + (currentUnpackr.freezeData ? 'Object.freeze' : '') +
+					'({' + structure.map(key => key === '__proto__' ? '__proto_:r()' : validName.test(key) ? key + ':r()' : ('[' + JSON.stringify(key) + ']:r()')).join(',') + '})}'))(read);
+				if (structure.highByte === 0)
+					structure.read = createSecondByteReader(firstId, structure.read);
+				return readObject() // second byte is already read, if there is one so immediately read object
+			}
+			let object = {};
+			for (let i = 0, l = structure.length; i < l; i++) {
+				let key = structure[i];
+				if (key === '__proto__')
+					key = '__proto_';
+				object[key] = read();
+			}
+			if (currentUnpackr.freezeData)
+				return Object.freeze(object);
+			return object
+		}
+		readObject.count = 0;
+		if (structure.highByte === 0) {
+			return createSecondByteReader(firstId, readObject)
+		}
+		return readObject
+	}
+
+	const createSecondByteReader = (firstId, read0) => {
+		return function() {
+			let highByte = src[position$1++];
+			if (highByte === 0)
+				return read0()
+			let id = firstId < 32 ? -(firstId + (highByte << 5)) : firstId + (highByte << 5);
+			let structure = currentStructures[id] || loadStructures()[id];
+			if (!structure) {
+				throw new Error('Record id is not defined for ' + id)
+			}
+			if (!structure.read)
+				structure.read = createStructureReader(structure, firstId);
+			return structure.read()
+		}
+	};
+
+	function loadStructures() {
+		let loadedStructures = saveState(() => {
+			// save the state in case getStructures modifies our buffer
+			src = null;
+			return currentUnpackr.getStructures()
+		});
+		return currentStructures = currentUnpackr._mergeStructures(loadedStructures, currentStructures)
+	}
+
+	var readFixedString = readStringJS;
+	var readString8 = readStringJS;
+	var readString16 = readStringJS;
+	var readString32 = readStringJS;
+	let isNativeAccelerationEnabled = false;
+	function readStringJS(length) {
+		let result;
+		if (length < 16) {
+			if (result = shortStringInJS(length))
+				return result
+		}
+		if (length > 64 && decoder)
+			return decoder.decode(src.subarray(position$1, position$1 += length))
+		const end = position$1 + length;
+		const units = [];
+		result = '';
+		while (position$1 < end) {
+			const byte1 = src[position$1++];
+			if ((byte1 & 0x80) === 0) {
+				// 1 byte
+				units.push(byte1);
+			} else if ((byte1 & 0xe0) === 0xc0) {
+				// 2 bytes
+				const byte2 = src[position$1++] & 0x3f;
+				units.push(((byte1 & 0x1f) << 6) | byte2);
+			} else if ((byte1 & 0xf0) === 0xe0) {
+				// 3 bytes
+				const byte2 = src[position$1++] & 0x3f;
+				const byte3 = src[position$1++] & 0x3f;
+				units.push(((byte1 & 0x1f) << 12) | (byte2 << 6) | byte3);
+			} else if ((byte1 & 0xf8) === 0xf0) {
+				// 4 bytes
+				const byte2 = src[position$1++] & 0x3f;
+				const byte3 = src[position$1++] & 0x3f;
+				const byte4 = src[position$1++] & 0x3f;
+				let unit = ((byte1 & 0x07) << 0x12) | (byte2 << 0x0c) | (byte3 << 0x06) | byte4;
+				if (unit > 0xffff) {
+					unit -= 0x10000;
+					units.push(((unit >>> 10) & 0x3ff) | 0xd800);
+					unit = 0xdc00 | (unit & 0x3ff);
+				}
+				units.push(unit);
+			} else {
+				units.push(byte1);
+			}
+
+			if (units.length >= 0x1000) {
+				result += fromCharCode.apply(String, units);
+				units.length = 0;
+			}
+		}
+
+		if (units.length > 0) {
+			result += fromCharCode.apply(String, units);
+		}
+
+		return result
+	}
+
+	function readArray(length) {
+		let array = new Array(length);
+		for (let i = 0; i < length; i++) {
+			array[i] = read();
+		}
+		if (currentUnpackr.freezeData)
+			return Object.freeze(array)
+		return array
+	}
+
+	function readMap(length) {
+		if (currentUnpackr.mapsAsObjects) {
+			let object = {};
+			for (let i = 0; i < length; i++) {
+				let key = readKey();
+				if (key === '__proto__')
+					key = '__proto_';
+				object[key] = read();
+			}
+			return object
+		} else {
+			let map = new Map();
+			for (let i = 0; i < length; i++) {
+				map.set(read(), read());
+			}
+			return map
+		}
+	}
+
+	var fromCharCode = String.fromCharCode;
+	function longStringInJS(length) {
+		let start = position$1;
+		let bytes = new Array(length);
+		for (let i = 0; i < length; i++) {
+			const byte = src[position$1++];
+			if ((byte & 0x80) > 0) {
+					position$1 = start;
+					return
+				}
+				bytes[i] = byte;
+			}
+			return fromCharCode.apply(String, bytes)
+	}
+	function shortStringInJS(length) {
+		if (length < 4) {
+			if (length < 2) {
+				if (length === 0)
+					return ''
+				else {
+					let a = src[position$1++];
+					if ((a & 0x80) > 1) {
+						position$1 -= 1;
+						return
+					}
+					return fromCharCode(a)
+				}
+			} else {
+				let a = src[position$1++];
+				let b = src[position$1++];
+				if ((a & 0x80) > 0 || (b & 0x80) > 0) {
+					position$1 -= 2;
+					return
+				}
+				if (length < 3)
+					return fromCharCode(a, b)
+				let c = src[position$1++];
+				if ((c & 0x80) > 0) {
+					position$1 -= 3;
+					return
+				}
+				return fromCharCode(a, b, c)
+			}
+		} else {
+			let a = src[position$1++];
+			let b = src[position$1++];
+			let c = src[position$1++];
+			let d = src[position$1++];
+			if ((a & 0x80) > 0 || (b & 0x80) > 0 || (c & 0x80) > 0 || (d & 0x80) > 0) {
+				position$1 -= 4;
+				return
+			}
+			if (length < 6) {
+				if (length === 4)
+					return fromCharCode(a, b, c, d)
+				else {
+					let e = src[position$1++];
+					if ((e & 0x80) > 0) {
+						position$1 -= 5;
+						return
+					}
+					return fromCharCode(a, b, c, d, e)
+				}
+			} else if (length < 8) {
+				let e = src[position$1++];
+				let f = src[position$1++];
+				if ((e & 0x80) > 0 || (f & 0x80) > 0) {
+					position$1 -= 6;
+					return
+				}
+				if (length < 7)
+					return fromCharCode(a, b, c, d, e, f)
+				let g = src[position$1++];
+				if ((g & 0x80) > 0) {
+					position$1 -= 7;
+					return
+				}
+				return fromCharCode(a, b, c, d, e, f, g)
+			} else {
+				let e = src[position$1++];
+				let f = src[position$1++];
+				let g = src[position$1++];
+				let h = src[position$1++];
+				if ((e & 0x80) > 0 || (f & 0x80) > 0 || (g & 0x80) > 0 || (h & 0x80) > 0) {
+					position$1 -= 8;
+					return
+				}
+				if (length < 10) {
+					if (length === 8)
+						return fromCharCode(a, b, c, d, e, f, g, h)
+					else {
+						let i = src[position$1++];
+						if ((i & 0x80) > 0) {
+							position$1 -= 9;
+							return
+						}
+						return fromCharCode(a, b, c, d, e, f, g, h, i)
+					}
+				} else if (length < 12) {
+					let i = src[position$1++];
+					let j = src[position$1++];
+					if ((i & 0x80) > 0 || (j & 0x80) > 0) {
+						position$1 -= 10;
+						return
+					}
+					if (length < 11)
+						return fromCharCode(a, b, c, d, e, f, g, h, i, j)
+					let k = src[position$1++];
+					if ((k & 0x80) > 0) {
+						position$1 -= 11;
+						return
+					}
+					return fromCharCode(a, b, c, d, e, f, g, h, i, j, k)
+				} else {
+					let i = src[position$1++];
+					let j = src[position$1++];
+					let k = src[position$1++];
+					let l = src[position$1++];
+					if ((i & 0x80) > 0 || (j & 0x80) > 0 || (k & 0x80) > 0 || (l & 0x80) > 0) {
+						position$1 -= 12;
+						return
+					}
+					if (length < 14) {
+						if (length === 12)
+							return fromCharCode(a, b, c, d, e, f, g, h, i, j, k, l)
+						else {
+							let m = src[position$1++];
+							if ((m & 0x80) > 0) {
+								position$1 -= 13;
+								return
+							}
+							return fromCharCode(a, b, c, d, e, f, g, h, i, j, k, l, m)
+						}
+					} else {
+						let m = src[position$1++];
+						let n = src[position$1++];
+						if ((m & 0x80) > 0 || (n & 0x80) > 0) {
+							position$1 -= 14;
+							return
+						}
+						if (length < 15)
+							return fromCharCode(a, b, c, d, e, f, g, h, i, j, k, l, m, n)
+						let o = src[position$1++];
+						if ((o & 0x80) > 0) {
+							position$1 -= 15;
+							return
+						}
+						return fromCharCode(a, b, c, d, e, f, g, h, i, j, k, l, m, n, o)
+					}
+				}
+			}
+		}
+	}
+
+	function readOnlyJSString() {
+		let token = src[position$1++];
+		let length;
+		if (token < 0xc0) {
+			// fixstr
+			length = token - 0xa0;
+		} else {
+			switch(token) {
+				case 0xd9:
+				// str 8
+					length = src[position$1++];
+					break
+				case 0xda:
+				// str 16
+					length = dataView.getUint16(position$1);
+					position$1 += 2;
+					break
+				case 0xdb:
+				// str 32
+					length = dataView.getUint32(position$1);
+					position$1 += 4;
+					break
+				default:
+					throw new Error('Expected string')
+			}
+		}
+		return readStringJS(length)
+	}
+
+
+	function readBin(length) {
+		return currentUnpackr.copyBuffers ?
+			// specifically use the copying slice (not the node one)
+			Uint8Array.prototype.slice.call(src, position$1, position$1 += length) :
+			src.subarray(position$1, position$1 += length)
+	}
+	function readExt(length) {
+		let type = src[position$1++];
+		if (currentExtensions[type]) {
+			let end;
+			return currentExtensions[type](src.subarray(position$1, end = (position$1 += length)), (readPosition) => {
+				position$1 = readPosition;
+				try {
+					return read();
+				} finally {
+					position$1 = end;
+				}
+			})
+		}
+		else
+			throw new Error('Unknown extension type ' + type)
+	}
+
+	var keyCache = new Array(4096);
+	function readKey() {
+		let length = src[position$1++];
+		if (length >= 0xa0 && length < 0xc0) {
+			// fixstr, potentially use key cache
+			length = length - 0xa0;
+			if (srcStringEnd >= position$1) // if it has been extracted, must use it (and faster anyway)
+				return srcString.slice(position$1 - srcStringStart, (position$1 += length) - srcStringStart)
+			else if (!(srcStringEnd == 0 && srcEnd < 180))
+				return readFixedString(length)
+		} else { // not cacheable, go back and do a standard read
+			position$1--;
+			return asSafeString(read())
+		}
+		let key = ((length << 5) ^ (length > 1 ? dataView.getUint16(position$1) : length > 0 ? src[position$1] : 0)) & 0xfff;
+		let entry = keyCache[key];
+		let checkPosition = position$1;
+		let end = position$1 + length - 3;
+		let chunk;
+		let i = 0;
+		if (entry && entry.bytes == length) {
+			while (checkPosition < end) {
+				chunk = dataView.getUint32(checkPosition);
+				if (chunk != entry[i++]) {
+					checkPosition = 0x70000000;
+					break
+				}
+				checkPosition += 4;
+			}
+			end += 3;
+			while (checkPosition < end) {
+				chunk = src[checkPosition++];
+				if (chunk != entry[i++]) {
+					checkPosition = 0x70000000;
+					break
+				}
+			}
+			if (checkPosition === end) {
+				position$1 = checkPosition;
+				return entry.string
+			}
+			end -= 3;
+			checkPosition = position$1;
+		}
+		entry = [];
+		keyCache[key] = entry;
+		entry.bytes = length;
+		while (checkPosition < end) {
+			chunk = dataView.getUint32(checkPosition);
+			entry.push(chunk);
+			checkPosition += 4;
+		}
+		end += 3;
+		while (checkPosition < end) {
+			chunk = src[checkPosition++];
+			entry.push(chunk);
+		}
+		// for small blocks, avoiding the overhead of the extract call is helpful
+		let string = length < 16 ? shortStringInJS(length) : longStringInJS(length);
+		if (string != null)
+			return entry.string = string
+		return entry.string = readFixedString(length)
+	}
+
+	function asSafeString(property) {
+		// protect against expensive (DoS) string conversions
+		if (typeof property === 'string') return property;
+		if (typeof property === 'number' || typeof property === 'boolean' || typeof property === 'bigint') return property.toString();
+		if (property == null) return property + '';
+		throw new Error('Invalid property type for record', typeof property);
+	}
+	// the registration of the record definition extension (as "r")
+	const recordDefinition = (id, highByte) => {
+		let structure = read().map(asSafeString); // ensure that all keys are strings and
+		// that the array is mutable
+		let firstByte = id;
+		if (highByte !== undefined) {
+			id = id < 32 ? -((highByte << 5) + id) : ((highByte << 5) + id);
+			structure.highByte = highByte;
+		}
+		let existingStructure = currentStructures[id];
+		// If it is a shared structure, we need to restore any changes after reading.
+		// Also in sequential mode, we may get incomplete reads and thus errors, and we need to restore
+		// to the state prior to an incomplete read in order to properly resume.
+		if (existingStructure && (existingStructure.isShared || sequentialMode)) {
+			(currentStructures.restoreStructures || (currentStructures.restoreStructures = []))[id] = existingStructure;
+		}
+		currentStructures[id] = structure;
+		structure.read = createStructureReader(structure, firstByte);
+		return structure.read()
+	};
+	currentExtensions[0] = () => {}; // notepack defines extension 0 to mean undefined, so use that as the default here
+	currentExtensions[0].noBuffer = true;
+
+	currentExtensions[0x42] = (data) => {
+		// decode bigint
+		let length = data.length;
+		let value = BigInt(data[0] & 0x80 ? data[0] - 0x100 : data[0]);
+		for (let i = 1; i < length; i++) {
+			value <<= BigInt(8);
+			value += BigInt(data[i]);
+		}
+		return value;
+	};
+
+	let errors = { Error, TypeError, ReferenceError };
+	currentExtensions[0x65] = () => {
+		let data = read();
+		return (errors[data[0]] || Error)(data[1], { cause: data[2] })
+	};
+
+	currentExtensions[0x69] = (data) => {
+		// id extension (for structured clones)
+		if (currentUnpackr.structuredClone === false) throw new Error('Structured clone extension is disabled')
+		let id = dataView.getUint32(position$1 - 4);
+		if (!referenceMap)
+			referenceMap = new Map();
+		let token = src[position$1];
+		let target;
+		// TODO: handle Maps, Sets, and other types that can cycle; this is complicated, because you potentially need to read
+		// ahead past references to record structure definitions
+		if (token >= 0x90 && token < 0xa0 || token == 0xdc || token == 0xdd)
+			target = [];
+		else
+			target = {};
+
+		let refEntry = { target }; // a placeholder object
+		referenceMap.set(id, refEntry);
+		let targetProperties = read(); // read the next value as the target object to id
+		if (refEntry.used) // there is a cycle, so we have to assign properties to original target
+			return Object.assign(target, targetProperties)
+		refEntry.target = targetProperties; // the placeholder wasn't used, replace with the deserialized one
+		return targetProperties // no cycle, can just use the returned read object
+	};
+
+	currentExtensions[0x70] = (data) => {
+		// pointer extension (for structured clones)
+		if (currentUnpackr.structuredClone === false) throw new Error('Structured clone extension is disabled')
+		let id = dataView.getUint32(position$1 - 4);
+		let refEntry = referenceMap.get(id);
+		refEntry.used = true;
+		return refEntry.target
+	};
+
+	currentExtensions[0x73] = () => new Set(read());
+
+	const typedArrays = ['Int8','Uint8','Uint8Clamped','Int16','Uint16','Int32','Uint32','Float32','Float64','BigInt64','BigUint64'].map(type => type + 'Array');
+
+	let glbl = typeof globalThis === 'object' ? globalThis : window;
+	currentExtensions[0x74] = (data) => {
+		let typeCode = data[0];
+		let typedArrayName = typedArrays[typeCode];
+		if (!typedArrayName) {
+			if (typeCode === 16) {
+				let ab = new ArrayBuffer(data.length - 1);
+				let u8 = new Uint8Array(ab);
+				u8.set(data.subarray(1));
+				return ab;
+			}
+			throw new Error('Could not find typed array for code ' + typeCode)
+		}
+		// we have to always slice/copy here to get a new ArrayBuffer that is word/byte aligned
+		return new glbl[typedArrayName](Uint8Array.prototype.slice.call(data, 1).buffer)
+	};
+	currentExtensions[0x78] = () => {
+		let data = read();
+		return new RegExp(data[0], data[1])
+	};
+	const TEMP_BUNDLE = [];
+	currentExtensions[0x62] = (data) => {
+		let dataSize = (data[0] << 24) + (data[1] << 16) + (data[2] << 8) + data[3];
+		let dataPosition = position$1;
+		position$1 += dataSize - data.length;
+		bundledStrings$1 = TEMP_BUNDLE;
+		bundledStrings$1 = [readOnlyJSString(), readOnlyJSString()];
+		bundledStrings$1.position0 = 0;
+		bundledStrings$1.position1 = 0;
+		bundledStrings$1.postBundlePosition = position$1;
+		position$1 = dataPosition;
+		return read()
+	};
+
+	currentExtensions[0xff] = (data) => {
+		// 32-bit date extension
+		if (data.length == 4)
+			return new Date((data[0] * 0x1000000 + (data[1] << 16) + (data[2] << 8) + data[3]) * 1000)
+		else if (data.length == 8)
+			return new Date(
+				((data[0] << 22) + (data[1] << 14) + (data[2] << 6) + (data[3] >> 2)) / 1000000 +
+				((data[3] & 0x3) * 0x100000000 + data[4] * 0x1000000 + (data[5] << 16) + (data[6] << 8) + data[7]) * 1000)
+		else if (data.length == 12)// TODO: Implement support for negative
+			return new Date(
+				((data[0] << 24) + (data[1] << 16) + (data[2] << 8) + data[3]) / 1000000 +
+				(((data[4] & 0x80) ? -0x1000000000000 : 0) + data[6] * 0x10000000000 + data[7] * 0x100000000 + data[8] * 0x1000000 + (data[9] << 16) + (data[10] << 8) + data[11]) * 1000)
+		else
+			return new Date('invalid')
+	}; // notepack defines extension 0 to mean undefined, so use that as the default here
+	// registration of bulk record definition?
+	// currentExtensions[0x52] = () =>
+
+	function saveState(callback) {
+		let savedSrcEnd = srcEnd;
+		let savedPosition = position$1;
+		let savedSrcStringStart = srcStringStart;
+		let savedSrcStringEnd = srcStringEnd;
+		let savedSrcString = srcString;
+		let savedReferenceMap = referenceMap;
+		let savedBundledStrings = bundledStrings$1;
+
+		// TODO: We may need to revisit this if we do more external calls to user code (since it could be slow)
+		let savedSrc = new Uint8Array(src.slice(0, srcEnd)); // we copy the data in case it changes while external data is processed
+		let savedStructures = currentStructures;
+		let savedStructuresContents = currentStructures.slice(0, currentStructures.length);
+		let savedPackr = currentUnpackr;
+		let savedSequentialMode = sequentialMode;
+		let value = callback();
+		srcEnd = savedSrcEnd;
+		position$1 = savedPosition;
+		srcStringStart = savedSrcStringStart;
+		srcStringEnd = savedSrcStringEnd;
+		srcString = savedSrcString;
+		referenceMap = savedReferenceMap;
+		bundledStrings$1 = savedBundledStrings;
+		src = savedSrc;
+		sequentialMode = savedSequentialMode;
+		currentStructures = savedStructures;
+		currentStructures.splice(0, currentStructures.length, ...savedStructuresContents);
+		currentUnpackr = savedPackr;
+		dataView = new DataView(src.buffer, src.byteOffset, src.byteLength);
+		return value
+	}
+	function clearSource() {
+		src = null;
+		referenceMap = null;
+		currentStructures = null;
+	}
+
+	function addExtension$1(extension) {
+		if (extension.unpack)
+			currentExtensions[extension.type] = extension.unpack;
+		else
+			currentExtensions[extension.type] = extension;
+	}
+
+	const mult10 = new Array(147); // this is a table matching binary exponents to the multiplier to determine significant digit rounding
+	for (let i = 0; i < 256; i++) {
+		mult10[i] = +('1e' + Math.floor(45.15 - i * 0.30103));
+	}
+	const Decoder = Unpackr;
+	var defaultUnpackr = new Unpackr({ useRecords: false });
+	const unpack = defaultUnpackr.unpack;
+	const unpackMultiple = defaultUnpackr.unpackMultiple;
+	const decode = defaultUnpackr.unpack;
+	const FLOAT32_OPTIONS = {
+		NEVER: 0,
+		ALWAYS: 1,
+		DECIMAL_ROUND: 3,
+		DECIMAL_FIT: 4
+	};
+	let f32Array = new Float32Array(1);
+	let u8Array = new Uint8Array(f32Array.buffer, 0, 4);
+	function roundFloat32(float32Number) {
+		f32Array[0] = float32Number;
+		let multiplier = mult10[((u8Array[3] & 0x7f) << 1) | (u8Array[2] >> 7)];
+		return ((multiplier * float32Number + (float32Number > 0 ? 0.5 : -0.5)) >> 0) / multiplier
+	}
+
+	let textEncoder;
+	try {
+		textEncoder = new TextEncoder();
+	} catch (error) {}
+	let extensions, extensionClasses;
+	const hasNodeBuffer = typeof Buffer !== 'undefined';
+	const ByteArrayAllocate = hasNodeBuffer ?
+		function(length) { return Buffer.allocUnsafeSlow(length) } : Uint8Array;
+	const ByteArray = hasNodeBuffer ? Buffer : Uint8Array;
+	const MAX_BUFFER_SIZE = hasNodeBuffer ? 0x100000000 : 0x7fd00000;
+	let target, keysTarget;
+	let targetView;
+	let position = 0;
+	let safeEnd;
+	let bundledStrings = null;
+	let writeStructSlots;
+	const MAX_BUNDLE_SIZE = 0x5500; // maximum characters such that the encoded bytes fits in 16 bits.
+	const hasNonLatin = /[\u0080-\uFFFF]/;
+	const RECORD_SYMBOL = Symbol('record-id');
+	class Packr extends Unpackr {
+		constructor(options) {
+			super(options);
+			this.offset = 0;
+			let start;
+			let hasSharedUpdate;
+			let structures;
+			let referenceMap;
+			let encodeUtf8 = ByteArray.prototype.utf8Write ? function(string, position) {
+				return target.utf8Write(string, position, target.byteLength - position)
+			} : (textEncoder && textEncoder.encodeInto) ?
+				function(string, position) {
+					return textEncoder.encodeInto(string, target.subarray(position)).written
+				} : false;
+
+			let packr = this;
+			if (!options)
+				options = {};
+			let isSequential = options && options.sequential;
+			let hasSharedStructures = options.structures || options.saveStructures;
+			let maxSharedStructures = options.maxSharedStructures;
+			if (maxSharedStructures == null)
+				maxSharedStructures = hasSharedStructures ? 32 : 0;
+			if (maxSharedStructures > 8160)
+				throw new Error('Maximum maxSharedStructure is 8160')
+			if (options.structuredClone && options.moreTypes == undefined) {
+				this.moreTypes = true;
+			}
+			let maxOwnStructures = options.maxOwnStructures;
+			if (maxOwnStructures == null)
+				maxOwnStructures = hasSharedStructures ? 32 : 64;
+			if (!this.structures && options.useRecords != false)
+				this.structures = [];
+			// two byte record ids for shared structures
+			let useTwoByteRecords = maxSharedStructures > 32 || (maxOwnStructures + maxSharedStructures > 64);
+			let sharedLimitId = maxSharedStructures + 0x40;
+			let maxStructureId = maxSharedStructures + maxOwnStructures + 0x40;
+			if (maxStructureId > 8256) {
+				throw new Error('Maximum maxSharedStructure + maxOwnStructure is 8192')
+			}
+			let recordIdsToRemove = [];
+			let transitionsCount = 0;
+			let serializationsSinceTransitionRebuild = 0;
+
+			this.pack = this.encode = function(value, encodeOptions) {
+				if (!target) {
+					target = new ByteArrayAllocate(8192);
+					targetView = target.dataView || (target.dataView = new DataView(target.buffer, 0, 8192));
+					position = 0;
+				}
+				safeEnd = target.length - 10;
+				if (safeEnd - position < 0x800) {
+					// don't start too close to the end,
+					target = new ByteArrayAllocate(target.length);
+					targetView = target.dataView || (target.dataView = new DataView(target.buffer, 0, target.length));
+					safeEnd = target.length - 10;
+					position = 0;
+				} else
+					position = (position + 7) & 0x7ffffff8; // Word align to make any future copying of this buffer faster
+				start = position;
+				if (encodeOptions & RESERVE_START_SPACE) position += (encodeOptions & 0xff);
+				referenceMap = packr.structuredClone ? new Map() : null;
+				if (packr.bundleStrings && typeof value !== 'string') {
+					bundledStrings = [];
+					bundledStrings.size = Infinity; // force a new bundle start on first string
+				} else
+					bundledStrings = null;
+				structures = packr.structures;
+				if (structures) {
+					if (structures.uninitialized)
+						structures = packr._mergeStructures(packr.getStructures());
+					let sharedLength = structures.sharedLength || 0;
+					if (sharedLength > maxSharedStructures) {
+						//if (maxSharedStructures <= 32 && structures.sharedLength > 32) // TODO: could support this, but would need to update the limit ids
+						throw new Error('Shared structures is larger than maximum shared structures, try increasing maxSharedStructures to ' + structures.sharedLength)
+					}
+					if (!structures.transitions) {
+						// rebuild our structure transitions
+						structures.transitions = Object.create(null);
+						for (let i = 0; i < sharedLength; i++) {
+							let keys = structures[i];
+							if (!keys)
+								continue
+							let nextTransition, transition = structures.transitions;
+							for (let j = 0, l = keys.length; j < l; j++) {
+								let key = keys[j];
+								nextTransition = transition[key];
+								if (!nextTransition) {
+									nextTransition = transition[key] = Object.create(null);
+								}
+								transition = nextTransition;
+							}
+							transition[RECORD_SYMBOL] = i + 0x40;
+						}
+						this.lastNamedStructuresLength = sharedLength;
+					}
+					if (!isSequential) {
+						structures.nextId = sharedLength + 0x40;
+					}
+				}
+				if (hasSharedUpdate)
+					hasSharedUpdate = false;
+				let encodingError;
+				try {
+					if (packr.randomAccessStructure && value && value.constructor && value.constructor === Object)
+						writeStruct(value);
+					else
+						pack(value);
+					let lastBundle = bundledStrings;
+					if (bundledStrings)
+						writeBundles(start, pack, 0);
+					if (referenceMap && referenceMap.idsToInsert) {
+						let idsToInsert = referenceMap.idsToInsert.sort((a, b) => a.offset > b.offset ? 1 : -1);
+						let i = idsToInsert.length;
+						let incrementPosition = -1;
+						while (lastBundle && i > 0) {
+							let insertionPoint = idsToInsert[--i].offset + start;
+							if (insertionPoint < (lastBundle.stringsPosition + start) && incrementPosition === -1)
+								incrementPosition = 0;
+							if (insertionPoint > (lastBundle.position + start)) {
+								if (incrementPosition >= 0)
+									incrementPosition += 6;
+							} else {
+								if (incrementPosition >= 0) {
+									// update the bundle reference now
+									targetView.setUint32(lastBundle.position + start,
+										targetView.getUint32(lastBundle.position + start) + incrementPosition);
+									incrementPosition = -1; // reset
+								}
+								lastBundle = lastBundle.previous;
+								i++;
+							}
+						}
+						if (incrementPosition >= 0 && lastBundle) {
+							// update the bundle reference now
+							targetView.setUint32(lastBundle.position + start,
+								targetView.getUint32(lastBundle.position + start) + incrementPosition);
+						}
+						position += idsToInsert.length * 6;
+						if (position > safeEnd)
+							makeRoom(position);
+						packr.offset = position;
+						let serialized = insertIds(target.subarray(start, position), idsToInsert);
+						referenceMap = null;
+						return serialized
+					}
+					packr.offset = position; // update the offset so next serialization doesn't write over our buffer, but can continue writing to same buffer sequentially
+					if (encodeOptions & REUSE_BUFFER_MODE) {
+						target.start = start;
+						target.end = position;
+						return target
+					}
+					return target.subarray(start, position) // position can change if we call pack again in saveStructures, so we get the buffer now
+				} catch(error) {
+					encodingError = error;
+					throw error;
+				} finally {
+					if (structures) {
+						resetStructures();
+						if (hasSharedUpdate && packr.saveStructures) {
+							let sharedLength = structures.sharedLength || 0;
+							// we can't rely on start/end with REUSE_BUFFER_MODE since they will (probably) change when we save
+							let returnBuffer = target.subarray(start, position);
+							let newSharedData = prepareStructures(structures, packr);
+							if (!encodingError) { // TODO: If there is an encoding error, should make the structures as uninitialized so they get rebuilt next time
+								if (packr.saveStructures(newSharedData, newSharedData.isCompatible) === false) {
+									// get updated structures and try again if the update failed
+									return packr.pack(value, encodeOptions)
+								}
+								packr.lastNamedStructuresLength = sharedLength;
+								// don't keep large buffers around
+								if (target.length > 0x40000000) target = null;
+								return returnBuffer
+							}
+						}
+					}
+					// don't keep large buffers around, they take too much memory and cause problems (limit at 1GB)
+					if (target.length > 0x40000000) target = null;
+					if (encodeOptions & RESET_BUFFER_MODE)
+						position = start;
+				}
+			};
+			const resetStructures = () => {
+				if (serializationsSinceTransitionRebuild < 10)
+					serializationsSinceTransitionRebuild++;
+				let sharedLength = structures.sharedLength || 0;
+				if (structures.length > sharedLength && !isSequential)
+					structures.length = sharedLength;
+				if (transitionsCount > 10000) {
+					// force a rebuild occasionally after a lot of transitions so it can get cleaned up
+					structures.transitions = null;
+					serializationsSinceTransitionRebuild = 0;
+					transitionsCount = 0;
+					if (recordIdsToRemove.length > 0)
+						recordIdsToRemove = [];
+				} else if (recordIdsToRemove.length > 0 && !isSequential) {
+					for (let i = 0, l = recordIdsToRemove.length; i < l; i++) {
+						recordIdsToRemove[i][RECORD_SYMBOL] = 0;
+					}
+					recordIdsToRemove = [];
+				}
+			};
+			const packArray = (value) => {
+				var length = value.length;
+				if (length < 0x10) {
+					target[position++] = 0x90 | length;
+				} else if (length < 0x10000) {
+					target[position++] = 0xdc;
+					target[position++] = length >> 8;
+					target[position++] = length & 0xff;
+				} else {
+					target[position++] = 0xdd;
+					targetView.setUint32(position, length);
+					position += 4;
+				}
+				for (let i = 0; i < length; i++) {
+					pack(value[i]);
+				}
+			};
+			const pack = (value) => {
+				if (position > safeEnd)
+					target = makeRoom(position);
+
+				var type = typeof value;
+				var length;
+				if (type === 'string') {
+					let strLength = value.length;
+					if (bundledStrings && strLength >= 4 && strLength < 0x1000) {
+						if ((bundledStrings.size += strLength) > MAX_BUNDLE_SIZE) {
+							let extStart;
+							let maxBytes = (bundledStrings[0] ? bundledStrings[0].length * 3 + bundledStrings[1].length : 0) + 10;
+							if (position + maxBytes > safeEnd)
+								target = makeRoom(position + maxBytes);
+							let lastBundle;
+							if (bundledStrings.position) { // here we use the 0x62 extension to write the last bundle and reserve space for the reference pointer to the next/current bundle
+								lastBundle = bundledStrings;
+								target[position] = 0xc8; // ext 16
+								position += 3; // reserve for the writing bundle size
+								target[position++] = 0x62; // 'b'
+								extStart = position - start;
+								position += 4; // reserve for writing bundle reference
+								writeBundles(start, pack, 0); // write the last bundles
+								targetView.setUint16(extStart + start - 3, position - start - extStart);
+							} else { // here we use the 0x62 extension just to reserve the space for the reference pointer to the bundle (will be updated once the bundle is written)
+								target[position++] = 0xd6; // fixext 4
+								target[position++] = 0x62; // 'b'
+								extStart = position - start;
+								position += 4; // reserve for writing bundle reference
+							}
+							bundledStrings = ['', '']; // create new ones
+							bundledStrings.previous = lastBundle;
+							bundledStrings.size = 0;
+							bundledStrings.position = extStart;
+						}
+						let twoByte = hasNonLatin.test(value);
+						bundledStrings[twoByte ? 0 : 1] += value;
+						target[position++] = 0xc1;
+						pack(twoByte ? -strLength : strLength);
+						return
+					}
+					let headerSize;
+					// first we estimate the header size, so we can write to the correct location
+					if (strLength < 0x20) {
+						headerSize = 1;
+					} else if (strLength < 0x100) {
+						headerSize = 2;
+					} else if (strLength < 0x10000) {
+						headerSize = 3;
+					} else {
+						headerSize = 5;
+					}
+					let maxBytes = strLength * 3;
+					if (position + maxBytes > safeEnd)
+						target = makeRoom(position + maxBytes);
+
+					if (strLength < 0x40 || !encodeUtf8) {
+						let i, c1, c2, strPosition = position + headerSize;
+						for (i = 0; i < strLength; i++) {
+							c1 = value.charCodeAt(i);
+							if (c1 < 0x80) {
+								target[strPosition++] = c1;
+							} else if (c1 < 0x800) {
+								target[strPosition++] = c1 >> 6 | 0xc0;
+								target[strPosition++] = c1 & 0x3f | 0x80;
+							} else if (
+								(c1 & 0xfc00) === 0xd800 &&
+								((c2 = value.charCodeAt(i + 1)) & 0xfc00) === 0xdc00
+							) {
+								c1 = 0x10000 + ((c1 & 0x03ff) << 10) + (c2 & 0x03ff);
+								i++;
+								target[strPosition++] = c1 >> 18 | 0xf0;
+								target[strPosition++] = c1 >> 12 & 0x3f | 0x80;
+								target[strPosition++] = c1 >> 6 & 0x3f | 0x80;
+								target[strPosition++] = c1 & 0x3f | 0x80;
+							} else {
+								target[strPosition++] = c1 >> 12 | 0xe0;
+								target[strPosition++] = c1 >> 6 & 0x3f | 0x80;
+								target[strPosition++] = c1 & 0x3f | 0x80;
+							}
+						}
+						length = strPosition - position - headerSize;
+					} else {
+						length = encodeUtf8(value, position + headerSize);
+					}
+
+					if (length < 0x20) {
+						target[position++] = 0xa0 | length;
+					} else if (length < 0x100) {
+						if (headerSize < 2) {
+							target.copyWithin(position + 2, position + 1, position + 1 + length);
+						}
+						target[position++] = 0xd9;
+						target[position++] = length;
+					} else if (length < 0x10000) {
+						if (headerSize < 3) {
+							target.copyWithin(position + 3, position + 2, position + 2 + length);
+						}
+						target[position++] = 0xda;
+						target[position++] = length >> 8;
+						target[position++] = length & 0xff;
+					} else {
+						if (headerSize < 5) {
+							target.copyWithin(position + 5, position + 3, position + 3 + length);
+						}
+						target[position++] = 0xdb;
+						targetView.setUint32(position, length);
+						position += 4;
+					}
+					position += length;
+				} else if (type === 'number') {
+					if (value >>> 0 === value) {// positive integer, 32-bit or less
+						// positive uint
+						if (value < 0x20 || (value < 0x80 && this.useRecords === false) || (value < 0x40 && !this.randomAccessStructure)) {
+							target[position++] = value;
+						} else if (value < 0x100) {
+							target[position++] = 0xcc;
+							target[position++] = value;
+						} else if (value < 0x10000) {
+							target[position++] = 0xcd;
+							target[position++] = value >> 8;
+							target[position++] = value & 0xff;
+						} else {
+							target[position++] = 0xce;
+							targetView.setUint32(position, value);
+							position += 4;
+						}
+					} else if (value >> 0 === value) { // negative integer
+						if (value >= -0x20) {
+							target[position++] = 0x100 + value;
+						} else if (value >= -0x80) {
+							target[position++] = 0xd0;
+							target[position++] = value + 0x100;
+						} else if (value >= -0x8000) {
+							target[position++] = 0xd1;
+							targetView.setInt16(position, value);
+							position += 2;
+						} else {
+							target[position++] = 0xd2;
+							targetView.setInt32(position, value);
+							position += 4;
+						}
+					} else {
+						let useFloat32;
+						if ((useFloat32 = this.useFloat32) > 0 && value < 0x100000000 && value >= -0x80000000) {
+							target[position++] = 0xca;
+							targetView.setFloat32(position, value);
+							let xShifted;
+							if (useFloat32 < 4 ||
+									// this checks for rounding of numbers that were encoded in 32-bit float to nearest significant decimal digit that could be preserved
+									((xShifted = value * mult10[((target[position] & 0x7f) << 1) | (target[position + 1] >> 7)]) >> 0) === xShifted) {
+								position += 4;
+								return
+							} else
+								position--; // move back into position for writing a double
+						}
+						target[position++] = 0xcb;
+						targetView.setFloat64(position, value);
+						position += 8;
+					}
+				} else if (type === 'object' || type === 'function') {
+					if (!value)
+						target[position++] = 0xc0;
+					else {
+						if (referenceMap) {
+							let referee = referenceMap.get(value);
+							if (referee) {
+								if (!referee.id) {
+									let idsToInsert = referenceMap.idsToInsert || (referenceMap.idsToInsert = []);
+									referee.id = idsToInsert.push(referee);
+								}
+								target[position++] = 0xd6; // fixext 4
+								target[position++] = 0x70; // "p" for pointer
+								targetView.setUint32(position, referee.id);
+								position += 4;
+								return
+							} else
+								referenceMap.set(value, { offset: position - start });
+						}
+						let constructor = value.constructor;
+						if (constructor === Object) {
+							writeObject(value);
+						} else if (constructor === Array) {
+							packArray(value);
+						} else if (constructor === Map) {
+							if (this.mapAsEmptyObject) target[position++] = 0x80;
+							else {
+								length = value.size;
+								if (length < 0x10) {
+									target[position++] = 0x80 | length;
+								} else if (length < 0x10000) {
+									target[position++] = 0xde;
+									target[position++] = length >> 8;
+									target[position++] = length & 0xff;
+								} else {
+									target[position++] = 0xdf;
+									targetView.setUint32(position, length);
+									position += 4;
+								}
+								for (let [key, entryValue] of value) {
+									pack(key);
+									pack(entryValue);
+								}
+							}
+						} else {
+							for (let i = 0, l = extensions.length; i < l; i++) {
+								let extensionClass = extensionClasses[i];
+								if (value instanceof extensionClass) {
+									let extension = extensions[i];
+									if (extension.write) {
+										if (extension.type) {
+											target[position++] = 0xd4; // one byte "tag" extension
+											target[position++] = extension.type;
+											target[position++] = 0;
+										}
+										let writeResult = extension.write.call(this, value);
+										if (writeResult === value) { // avoid infinite recursion
+											if (Array.isArray(value)) {
+												packArray(value);
+											} else {
+												writeObject(value);
+											}
+										} else {
+											pack(writeResult);
+										}
+										return
+									}
+									let currentTarget = target;
+									let currentTargetView = targetView;
+									let currentPosition = position;
+									target = null;
+									let result;
+									try {
+										result = extension.pack.call(this, value, (size) => {
+											// restore target and use it
+											target = currentTarget;
+											currentTarget = null;
+											position += size;
+											if (position > safeEnd)
+												makeRoom(position);
+											return {
+												target, targetView, position: position - size
+											}
+										}, pack);
+									} finally {
+										// restore current target information (unless already restored)
+										if (currentTarget) {
+											target = currentTarget;
+											targetView = currentTargetView;
+											position = currentPosition;
+											safeEnd = target.length - 10;
+										}
+									}
+									if (result) {
+										if (result.length + position > safeEnd)
+											makeRoom(result.length + position);
+										position = writeExtensionData(result, target, position, extension.type);
+									}
+									return
+								}
+							}
+							// check isArray after extensions, because extensions can extend Array
+							if (Array.isArray(value)) {
+								packArray(value);
+							} else {
+								// use this as an alternate mechanism for expressing how to serialize
+								if (value.toJSON) {
+									const json = value.toJSON();
+									// if for some reason value.toJSON returns itself it'll loop forever
+									if (json !== value)
+										return pack(json)
+								}
+
+								// if there is a writeFunction, use it, otherwise just encode as undefined
+								if (type === 'function')
+									return pack(this.writeFunction && this.writeFunction(value));
+
+								// no extension found, write as plain object
+								writeObject(value);
+							}
+						}
+					}
+				} else if (type === 'boolean') {
+					target[position++] = value ? 0xc3 : 0xc2;
+				} else if (type === 'bigint') {
+					if (value < (BigInt(1)<<BigInt(63)) && value >= -(BigInt(1)<<BigInt(63))) {
+						// use a signed int as long as it fits
+						target[position++] = 0xd3;
+						targetView.setBigInt64(position, value);
+					} else if (value < (BigInt(1)<<BigInt(64)) && value > 0) {
+						// if we can fit an unsigned int, use that
+						target[position++] = 0xcf;
+						targetView.setBigUint64(position, value);
+					} else {
+						// overflow
+						if (this.largeBigIntToFloat) {
+							target[position++] = 0xcb;
+							targetView.setFloat64(position, Number(value));
+						} else if (this.largeBigIntToString) {
+							return pack(value.toString());
+						} else if (this.useBigIntExtension && value < BigInt(2)**BigInt(1023) && value > -(BigInt(2)**BigInt(1023))) {
+							target[position++] = 0xc7;
+							position++;
+							target[position++] = 0x42; // "B" for BigInt
+							let bytes = [];
+							let alignedSign;
+							do {
+								let byte = value & BigInt(0xff);
+								alignedSign = (byte & BigInt(0x80)) === (value < BigInt(0) ? BigInt(0x80) : BigInt(0));
+								bytes.push(byte);
+								value >>= BigInt(8);
+							} while (!((value === BigInt(0) || value === BigInt(-1)) && alignedSign));
+							target[position-2] = bytes.length;
+							for (let i = bytes.length; i > 0;) {
+								target[position++] = Number(bytes[--i]);
+							}
+							return
+						} else {
+							throw new RangeError(value + ' was too large to fit in MessagePack 64-bit integer format, use' +
+								' useBigIntExtension, or set largeBigIntToFloat to convert to float-64, or set' +
+								' largeBigIntToString to convert to string')
+						}
+					}
+					position += 8;
+				} else if (type === 'undefined') {
+					if (this.encodeUndefinedAsNil)
+						target[position++] = 0xc0;
+					else {
+						target[position++] = 0xd4; // a number of implementations use fixext1 with type 0, data 0 to denote undefined, so we follow suite
+						target[position++] = 0;
+						target[position++] = 0;
+					}
+				} else {
+					throw new Error('Unknown type: ' + type)
+				}
+			};
+
+			const writePlainObject = (this.variableMapSize || this.coercibleKeyAsNumber || this.skipValues) ? (object) => {
+				// this method is slightly slower, but generates "preferred serialization" (optimally small for smaller objects)
+				let keys;
+				if (this.skipValues) {
+					keys = [];
+					for (let key in object) {
+						if ((typeof object.hasOwnProperty !== 'function' || object.hasOwnProperty(key)) &&
+							!this.skipValues.includes(object[key]))
+							keys.push(key);
+					}
+				} else {
+					keys = Object.keys(object);
+				}
+				let length = keys.length;
+				if (length < 0x10) {
+					target[position++] = 0x80 | length;
+				} else if (length < 0x10000) {
+					target[position++] = 0xde;
+					target[position++] = length >> 8;
+					target[position++] = length & 0xff;
+				} else {
+					target[position++] = 0xdf;
+					targetView.setUint32(position, length);
+					position += 4;
+				}
+				let key;
+				if (this.coercibleKeyAsNumber) {
+					for (let i = 0; i < length; i++) {
+						key = keys[i];
+						let num = Number(key);
+						pack(isNaN(num) ? key : num);
+						pack(object[key]);
+					}
+
+				} else {
+					for (let i = 0; i < length; i++) {
+						pack(key = keys[i]);
+						pack(object[key]);
+					}
+				}
+			} :
+			(object) => {
+				target[position++] = 0xde; // always using map 16, so we can preallocate and set the length afterwards
+				let objectOffset = position - start;
+				position += 2;
+				let size = 0;
+				for (let key in object) {
+					if (typeof object.hasOwnProperty !== 'function' || object.hasOwnProperty(key)) {
+						pack(key);
+						pack(object[key]);
+						size++;
+					}
+				}
+				if (size > 0xffff) {
+					throw new Error('Object is too large to serialize with fast 16-bit map size,' +
+					' use the "variableMapSize" option to serialize this object');
+				}
+				target[objectOffset++ + start] = size >> 8;
+				target[objectOffset + start] = size & 0xff;
+			};
+
+			const writeRecord = this.useRecords === false ? writePlainObject :
+			(options.progressiveRecords && !useTwoByteRecords) ?  // this is about 2% faster for highly stable structures, since it only requires one for-in loop (but much more expensive when new structure needs to be written)
+			(object) => {
+				let nextTransition, transition = structures.transitions || (structures.transitions = Object.create(null));
+				let objectOffset = position++ - start;
+				let wroteKeys;
+				for (let key in object) {
+					if (typeof object.hasOwnProperty !== 'function' || object.hasOwnProperty(key)) {
+						nextTransition = transition[key];
+						if (nextTransition)
+							transition = nextTransition;
+						else {
+							// record doesn't exist, create full new record and insert it
+							let keys = Object.keys(object);
+							let lastTransition = transition;
+							transition = structures.transitions;
+							let newTransitions = 0;
+							for (let i = 0, l = keys.length; i < l; i++) {
+								let key = keys[i];
+								nextTransition = transition[key];
+								if (!nextTransition) {
+									nextTransition = transition[key] = Object.create(null);
+									newTransitions++;
+								}
+								transition = nextTransition;
+							}
+							if (objectOffset + start + 1 == position) {
+								// first key, so we don't need to insert, we can just write record directly
+								position--;
+								newRecord(transition, keys, newTransitions);
+							} else // otherwise we need to insert the record, moving existing data after the record
+								insertNewRecord(transition, keys, objectOffset, newTransitions);
+							wroteKeys = true;
+							transition = lastTransition[key];
+						}
+						pack(object[key]);
+					}
+				}
+				if (!wroteKeys) {
+					let recordId = transition[RECORD_SYMBOL];
+					if (recordId)
+						target[objectOffset + start] = recordId;
+					else
+						insertNewRecord(transition, Object.keys(object), objectOffset, 0);
+				}
+			} :
+			(object) => {
+				let nextTransition, transition = structures.transitions || (structures.transitions = Object.create(null));
+				let newTransitions = 0;
+				for (let key in object) if (typeof object.hasOwnProperty !== 'function' || object.hasOwnProperty(key)) {
+					nextTransition = transition[key];
+					if (!nextTransition) {
+						nextTransition = transition[key] = Object.create(null);
+						newTransitions++;
+					}
+					transition = nextTransition;
+				}
+				let recordId = transition[RECORD_SYMBOL];
+				if (recordId) {
+					if (recordId >= 0x60 && useTwoByteRecords) {
+						target[position++] = ((recordId -= 0x60) & 0x1f) + 0x60;
+						target[position++] = recordId >> 5;
+					} else
+						target[position++] = recordId;
+				} else {
+					newRecord(transition, transition.__keys__ || Object.keys(object), newTransitions);
+				}
+				// now write the values
+				for (let key in object)
+					if (typeof object.hasOwnProperty !== 'function' || object.hasOwnProperty(key)) {
+						pack(object[key]);
+					}
+			};
+
+			// create reference to useRecords if useRecords is a function
+			const checkUseRecords = typeof this.useRecords == 'function' && this.useRecords;
+
+			const writeObject = checkUseRecords ? (object) => {
+				checkUseRecords(object) ? writeRecord(object) : writePlainObject(object);
+			} : writeRecord;
+
+			const makeRoom = (end) => {
+				let newSize;
+				if (end > 0x1000000) {
+					// special handling for really large buffers
+					if ((end - start) > MAX_BUFFER_SIZE)
+						throw new Error('Packed buffer would be larger than maximum buffer size')
+					newSize = Math.min(MAX_BUFFER_SIZE,
+						Math.round(Math.max((end - start) * (end > 0x4000000 ? 1.25 : 2), 0x400000) / 0x1000) * 0x1000);
+				} else // faster handling for smaller buffers
+					newSize = ((Math.max((end - start) << 2, target.length - 1) >> 12) + 1) << 12;
+				let newBuffer = new ByteArrayAllocate(newSize);
+				targetView = newBuffer.dataView || (newBuffer.dataView = new DataView(newBuffer.buffer, 0, newSize));
+				end = Math.min(end, target.length);
+				if (target.copy)
+					target.copy(newBuffer, 0, start, end);
+				else
+					newBuffer.set(target.slice(start, end));
+				position -= start;
+				start = 0;
+				safeEnd = newBuffer.length - 10;
+				return target = newBuffer
+			};
+			const newRecord = (transition, keys, newTransitions) => {
+				let recordId = structures.nextId;
+				if (!recordId)
+					recordId = 0x40;
+				if (recordId < sharedLimitId && this.shouldShareStructure && !this.shouldShareStructure(keys)) {
+					recordId = structures.nextOwnId;
+					if (!(recordId < maxStructureId))
+						recordId = sharedLimitId;
+					structures.nextOwnId = recordId + 1;
+				} else {
+					if (recordId >= maxStructureId)// cycle back around
+						recordId = sharedLimitId;
+					structures.nextId = recordId + 1;
+				}
+				let highByte = keys.highByte = recordId >= 0x60 && useTwoByteRecords ? (recordId - 0x60) >> 5 : -1;
+				transition[RECORD_SYMBOL] = recordId;
+				transition.__keys__ = keys;
+				structures[recordId - 0x40] = keys;
+
+				if (recordId < sharedLimitId) {
+					keys.isShared = true;
+					structures.sharedLength = recordId - 0x3f;
+					hasSharedUpdate = true;
+					if (highByte >= 0) {
+						target[position++] = (recordId & 0x1f) + 0x60;
+						target[position++] = highByte;
+					} else {
+						target[position++] = recordId;
+					}
+				} else {
+					if (highByte >= 0) {
+						target[position++] = 0xd5; // fixext 2
+						target[position++] = 0x72; // "r" record defintion extension type
+						target[position++] = (recordId & 0x1f) + 0x60;
+						target[position++] = highByte;
+					} else {
+						target[position++] = 0xd4; // fixext 1
+						target[position++] = 0x72; // "r" record defintion extension type
+						target[position++] = recordId;
+					}
+
+					if (newTransitions)
+						transitionsCount += serializationsSinceTransitionRebuild * newTransitions;
+					// record the removal of the id, we can maintain our shared structure
+					if (recordIdsToRemove.length >= maxOwnStructures)
+						recordIdsToRemove.shift()[RECORD_SYMBOL] = 0; // we are cycling back through, and have to remove old ones
+					recordIdsToRemove.push(transition);
+					pack(keys);
+				}
+			};
+			const insertNewRecord = (transition, keys, insertionOffset, newTransitions) => {
+				let mainTarget = target;
+				let mainPosition = position;
+				let mainSafeEnd = safeEnd;
+				let mainStart = start;
+				target = keysTarget;
+				position = 0;
+				start = 0;
+				if (!target)
+					keysTarget = target = new ByteArrayAllocate(8192);
+				safeEnd = target.length - 10;
+				newRecord(transition, keys, newTransitions);
+				keysTarget = target;
+				let keysPosition = position;
+				target = mainTarget;
+				position = mainPosition;
+				safeEnd = mainSafeEnd;
+				start = mainStart;
+				if (keysPosition > 1) {
+					let newEnd = position + keysPosition - 1;
+					if (newEnd > safeEnd)
+						makeRoom(newEnd);
+					let insertionPosition = insertionOffset + start;
+					target.copyWithin(insertionPosition + keysPosition, insertionPosition + 1, position);
+					target.set(keysTarget.slice(0, keysPosition), insertionPosition);
+					position = newEnd;
+				} else {
+					target[insertionOffset + start] = keysTarget[0];
+				}
+			};
+			const writeStruct = (object) => {
+				let newPosition = writeStructSlots(object, target, start, position, structures, makeRoom, (value, newPosition, notifySharedUpdate) => {
+					if (notifySharedUpdate)
+						return hasSharedUpdate = true;
+					position = newPosition;
+					let startTarget = target;
+					pack(value);
+					resetStructures();
+					if (startTarget !== target) {
+						return { position, targetView, target }; // indicate the buffer was re-allocated
+					}
+					return position;
+				}, this);
+				if (newPosition === 0) // bail and go to a msgpack object
+					return writeObject(object);
+				position = newPosition;
+			};
+		}
+		useBuffer(buffer) {
+			// this means we are finished using our own buffer and we can write over it safely
+			target = buffer;
+			target.dataView || (target.dataView = new DataView(target.buffer, target.byteOffset, target.byteLength));
+			position = 0;
+		}
+		set position (value) {
+			position = value;
+		}
+		get position() {
+			return position;
+		}
+		clearSharedData() {
+			if (this.structures)
+				this.structures = [];
+			if (this.typedStructs)
+				this.typedStructs = [];
+		}
+	}
+
+	extensionClasses = [ Date, Set, Error, RegExp, ArrayBuffer, Object.getPrototypeOf(Uint8Array.prototype).constructor /*TypedArray*/, C1Type ];
+	extensions = [{
+		pack(date, allocateForWrite, pack) {
+			let seconds = date.getTime() / 1000;
+			if ((this.useTimestamp32 || date.getMilliseconds() === 0) && seconds >= 0 && seconds < 0x100000000) {
+				// Timestamp 32
+				let { target, targetView, position} = allocateForWrite(6);
+				target[position++] = 0xd6;
+				target[position++] = 0xff;
+				targetView.setUint32(position, seconds);
+			} else if (seconds > 0 && seconds < 0x100000000) {
+				// Timestamp 64
+				let { target, targetView, position} = allocateForWrite(10);
+				target[position++] = 0xd7;
+				target[position++] = 0xff;
+				targetView.setUint32(position, date.getMilliseconds() * 4000000 + ((seconds / 1000 / 0x100000000) >> 0));
+				targetView.setUint32(position + 4, seconds);
+			} else if (isNaN(seconds)) {
+				if (this.onInvalidDate) {
+					allocateForWrite(0);
+					return pack(this.onInvalidDate())
+				}
+				// Intentionally invalid timestamp
+				let { target, targetView, position} = allocateForWrite(3);
+				target[position++] = 0xd4;
+				target[position++] = 0xff;
+				target[position++] = 0xff;
+			} else {
+				// Timestamp 96
+				let { target, targetView, position} = allocateForWrite(15);
+				target[position++] = 0xc7;
+				target[position++] = 12;
+				target[position++] = 0xff;
+				targetView.setUint32(position, date.getMilliseconds() * 1000000);
+				targetView.setBigInt64(position + 4, BigInt(Math.floor(seconds)));
+			}
+		}
+	}, {
+		pack(set, allocateForWrite, pack) {
+			if (this.setAsEmptyObject) {
+				allocateForWrite(0);
+				return pack({})
+			}
+			let array = Array.from(set);
+			let { target, position} = allocateForWrite(this.moreTypes ? 3 : 0);
+			if (this.moreTypes) {
+				target[position++] = 0xd4;
+				target[position++] = 0x73; // 's' for Set
+				target[position++] = 0;
+			}
+			pack(array);
+		}
+	}, {
+		pack(error, allocateForWrite, pack) {
+			let { target, position} = allocateForWrite(this.moreTypes ? 3 : 0);
+			if (this.moreTypes) {
+				target[position++] = 0xd4;
+				target[position++] = 0x65; // 'e' for error
+				target[position++] = 0;
+			}
+			pack([ error.name, error.message, error.cause ]);
+		}
+	}, {
+		pack(regex, allocateForWrite, pack) {
+			let { target, position} = allocateForWrite(this.moreTypes ? 3 : 0);
+			if (this.moreTypes) {
+				target[position++] = 0xd4;
+				target[position++] = 0x78; // 'x' for regeXp
+				target[position++] = 0;
+			}
+			pack([ regex.source, regex.flags ]);
+		}
+	}, {
+		pack(arrayBuffer, allocateForWrite) {
+			if (this.moreTypes)
+				writeExtBuffer(arrayBuffer, 0x10, allocateForWrite);
+			else
+				writeBuffer(hasNodeBuffer ? Buffer.from(arrayBuffer) : new Uint8Array(arrayBuffer), allocateForWrite);
+		}
+	}, {
+		pack(typedArray, allocateForWrite) {
+			let constructor = typedArray.constructor;
+			if (constructor !== ByteArray && this.moreTypes)
+				writeExtBuffer(typedArray, typedArrays.indexOf(constructor.name), allocateForWrite);
+			else
+				writeBuffer(typedArray, allocateForWrite);
+		}
+	}, {
+		pack(c1, allocateForWrite) { // specific 0xC1 object
+			let { target, position} = allocateForWrite(1);
+			target[position] = 0xc1;
+		}
+	}];
+
+	function writeExtBuffer(typedArray, type, allocateForWrite, encode) {
+		let length = typedArray.byteLength;
+		if (length + 1 < 0x100) {
+			var { target, position } = allocateForWrite(4 + length);
+			target[position++] = 0xc7;
+			target[position++] = length + 1;
+		} else if (length + 1 < 0x10000) {
+			var { target, position } = allocateForWrite(5 + length);
+			target[position++] = 0xc8;
+			target[position++] = (length + 1) >> 8;
+			target[position++] = (length + 1) & 0xff;
+		} else {
+			var { target, position, targetView } = allocateForWrite(7 + length);
+			target[position++] = 0xc9;
+			targetView.setUint32(position, length + 1); // plus one for the type byte
+			position += 4;
+		}
+		target[position++] = 0x74; // "t" for typed array
+		target[position++] = type;
+		if (!typedArray.buffer) typedArray = new Uint8Array(typedArray);
+		target.set(new Uint8Array(typedArray.buffer, typedArray.byteOffset, typedArray.byteLength), position);
+	}
+	function writeBuffer(buffer, allocateForWrite) {
+		let length = buffer.byteLength;
+		var target, position;
+		if (length < 0x100) {
+			var { target, position } = allocateForWrite(length + 2);
+			target[position++] = 0xc4;
+			target[position++] = length;
+		} else if (length < 0x10000) {
+			var { target, position } = allocateForWrite(length + 3);
+			target[position++] = 0xc5;
+			target[position++] = length >> 8;
+			target[position++] = length & 0xff;
+		} else {
+			var { target, position, targetView } = allocateForWrite(length + 5);
+			target[position++] = 0xc6;
+			targetView.setUint32(position, length);
+			position += 4;
+		}
+		target.set(buffer, position);
+	}
+
+	function writeExtensionData(result, target, position, type) {
+		let length = result.length;
+		switch (length) {
+			case 1:
+				target[position++] = 0xd4;
+				break
+			case 2:
+				target[position++] = 0xd5;
+				break
+			case 4:
+				target[position++] = 0xd6;
+				break
+			case 8:
+				target[position++] = 0xd7;
+				break
+			case 16:
+				target[position++] = 0xd8;
+				break
+			default:
+				if (length < 0x100) {
+					target[position++] = 0xc7;
+					target[position++] = length;
+				} else if (length < 0x10000) {
+					target[position++] = 0xc8;
+					target[position++] = length >> 8;
+					target[position++] = length & 0xff;
+				} else {
+					target[position++] = 0xc9;
+					target[position++] = length >> 24;
+					target[position++] = (length >> 16) & 0xff;
+					target[position++] = (length >> 8) & 0xff;
+					target[position++] = length & 0xff;
+				}
+		}
+		target[position++] = type;
+		target.set(result, position);
+		position += length;
+		return position
+	}
+
+	function insertIds(serialized, idsToInsert) {
+		// insert the ids that need to be referenced for structured clones
+		let nextId;
+		let distanceToMove = idsToInsert.length * 6;
+		let lastEnd = serialized.length - distanceToMove;
+		while (nextId = idsToInsert.pop()) {
+			let offset = nextId.offset;
+			let id = nextId.id;
+			serialized.copyWithin(offset + distanceToMove, offset, lastEnd);
+			distanceToMove -= 6;
+			let position = offset + distanceToMove;
+			serialized[position++] = 0xd6;
+			serialized[position++] = 0x69; // 'i'
+			serialized[position++] = id >> 24;
+			serialized[position++] = (id >> 16) & 0xff;
+			serialized[position++] = (id >> 8) & 0xff;
+			serialized[position++] = id & 0xff;
+			lastEnd = offset;
+		}
+		return serialized
+	}
+
+	function writeBundles(start, pack, incrementPosition) {
+		if (bundledStrings.length > 0) {
+			targetView.setUint32(bundledStrings.position + start, position + incrementPosition - bundledStrings.position - start);
+			bundledStrings.stringsPosition = position - start;
+			let writeStrings = bundledStrings;
+			bundledStrings = null;
+			pack(writeStrings[0]);
+			pack(writeStrings[1]);
+		}
+	}
+
+	function addExtension(extension) {
+		if (extension.Class) {
+			if (!extension.pack && !extension.write)
+				throw new Error('Extension has no pack or write function')
+			if (extension.pack && !extension.type)
+				throw new Error('Extension has no type (numeric code to identify the extension)')
+			extensionClasses.unshift(extension.Class);
+			extensions.unshift(extension);
+		}
+		addExtension$1(extension);
+	}
+	function prepareStructures(structures, packr) {
+		structures.isCompatible = (existingStructures) => {
+			let compatible = !existingStructures || ((packr.lastNamedStructuresLength || 0) === existingStructures.length);
+			if (!compatible) // we want to merge these existing structures immediately since we already have it and we are in the right transaction
+				packr._mergeStructures(existingStructures);
+			return compatible;
+		};
+		return structures
+	}
+
+	let defaultPackr = new Packr({ useRecords: false });
+	const pack = defaultPackr.pack;
+	const encode = defaultPackr.pack;
+	const Encoder = Packr;
+	const { NEVER, ALWAYS, DECIMAL_ROUND, DECIMAL_FIT } = FLOAT32_OPTIONS;
+	const REUSE_BUFFER_MODE = 512;
+	const RESET_BUFFER_MODE = 1024;
+	const RESERVE_START_SPACE = 2048;
+
+	/**
+	 * Given an Iterable first argument, returns an Iterable where each value is packed as a Buffer
+	 * If the argument is only Async Iterable, the return value will be an Async Iterable.
+	 * @param {Iterable|Iterator|AsyncIterable|AsyncIterator} objectIterator - iterable source, like a Readable object stream, an array, Set, or custom object
+	 * @param {options} [options] - msgpackr pack options
+	 * @returns {IterableIterator|Promise.<AsyncIterableIterator>}
+	 */
+	function packIter (objectIterator, options = {}) {
+	  if (!objectIterator || typeof objectIterator !== 'object') {
+	    throw new Error('first argument must be an Iterable, Async Iterable, or a Promise for an Async Iterable')
+	  } else if (typeof objectIterator[Symbol.iterator] === 'function') {
+	    return packIterSync(objectIterator, options)
+	  } else if (typeof objectIterator.then === 'function' || typeof objectIterator[Symbol.asyncIterator] === 'function') {
+	    return packIterAsync(objectIterator, options)
+	  } else {
+	    throw new Error('first argument must be an Iterable, Async Iterable, Iterator, Async Iterator, or a Promise')
+	  }
+	}
+
+	function * packIterSync (objectIterator, options) {
+	  const packr = new Packr(options);
+	  for (const value of objectIterator) {
+	    yield packr.pack(value);
+	  }
+	}
+
+	async function * packIterAsync (objectIterator, options) {
+	  const packr = new Packr(options);
+	  for await (const value of objectIterator) {
+	    yield packr.pack(value);
+	  }
+	}
+
+	/**
+	 * Given an Iterable/Iterator input which yields buffers, returns an IterableIterator which yields sync decoded objects
+	 * Or, given an Async Iterable/Iterator which yields promises resolving in buffers, returns an AsyncIterableIterator.
+	 * @param {Iterable|Iterator|AsyncIterable|AsyncIterableIterator} bufferIterator
+	 * @param {object} [options] - unpackr options
+	 * @returns {IterableIterator|Promise.<AsyncIterableIterator}
+	 */
+	function unpackIter (bufferIterator, options = {}) {
+	  if (!bufferIterator || typeof bufferIterator !== 'object') {
+	    throw new Error('first argument must be an Iterable, Async Iterable, Iterator, Async Iterator, or a promise')
+	  }
+
+	  const unpackr = new Unpackr(options);
+	  let incomplete;
+	  const parser = (chunk) => {
+	    let yields;
+	    // if there's incomplete data from previous chunk, concatinate and try again
+	    if (incomplete) {
+	      chunk = Buffer.concat([incomplete, chunk]);
+	      incomplete = undefined;
+	    }
+
+	    try {
+	      yields = unpackr.unpackMultiple(chunk);
+	    } catch (err) {
+	      if (err.incomplete) {
+	        incomplete = chunk.slice(err.lastPosition);
+	        yields = err.values;
+	      } else {
+	        throw err
+	      }
+	    }
+	    return yields
+	  };
+
+	  if (typeof bufferIterator[Symbol.iterator] === 'function') {
+	    return (function * iter () {
+	      for (const value of bufferIterator) {
+	        yield * parser(value);
+	      }
+	    })()
+	  } else if (typeof bufferIterator[Symbol.asyncIterator] === 'function') {
+	    return (async function * iter () {
+	      for await (const value of bufferIterator) {
+	        yield * parser(value);
+	      }
+	    })()
+	  }
+	}
+	const decodeIter = unpackIter;
+	const encodeIter = packIter;
+
+	const useRecords = false;
+	const mapsAsObjects = true;
+
+	global.ALWAYS = ALWAYS;
+	global.C1 = C1;
+	global.DECIMAL_FIT = DECIMAL_FIT;
+	global.DECIMAL_ROUND = DECIMAL_ROUND;
+	global.Decoder = Decoder;
+	global.Encoder = Encoder;
+	global.FLOAT32_OPTIONS = FLOAT32_OPTIONS;
+	global.NEVER = NEVER;
+	global.Packr = Packr;
+	global.RESERVE_START_SPACE = RESERVE_START_SPACE;
+	global.RESET_BUFFER_MODE = RESET_BUFFER_MODE;
+	global.REUSE_BUFFER_MODE = REUSE_BUFFER_MODE;
+	global.Unpackr = Unpackr;
+	global.addExtension = addExtension;
+	global.clearSource = clearSource;
+	global.decode = decode;
+	global.decodeIter = decodeIter;
+	global.encode = encode;
+	global.encodeIter = encodeIter;
+	global.isNativeAccelerationEnabled = isNativeAccelerationEnabled;
+	global.mapsAsObjects = mapsAsObjects;
+	global.pack = pack;
+	global.roundFloat32 = roundFloat32;
+	global.unpack = unpack;
+	global.unpackMultiple = unpackMultiple;
+	global.useRecords = useRecords;
+
+}));
+//# sourceMappingURL=index-no-eval.cjs.map
+