diff --git a/.github/FUNDING.yml b/.github/FUNDING.yml
index 3ec50a0..b8b8326 100644
--- a/.github/FUNDING.yml
+++ b/.github/FUNDING.yml
@@ -1,6 +1,6 @@
 # These are supported funding model platforms
 
-github: # Replace with up to 4 GitHub Sponsors-enabled usernames e.g., [user1, user2]
+github: faisalman
 patreon: # Replace with a single Patreon username
 open_collective: ua-parser-js
 ko_fi: # Replace with a single Ko-fi username
diff --git a/license.md b/license.md
index 01d840a..9ba50e2 100644
--- a/license.md
+++ b/license.md
@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2012-2021 Faisal Salman <<f@faisalman.com>>
+Copyright (c) 2012-2023 Faisal Salman <<f@faisalman.com>>
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
diff --git a/package.json b/package.json
index 7d98775..37854dc 100644
--- a/package.json
+++ b/package.json
@@ -197,6 +197,10 @@
     {
       "type": "paypal",
       "url": "https://paypal.me/faisalman"
+    },
+    {
+      "type": "github",
+      "url": "https://github.com/sponsors/faisalman"
     }
   ]
 }
diff --git a/readme.md b/readme.md
index fd32a7f..acf44a1 100644
--- a/readme.md
+++ b/readme.md
@@ -90,10 +90,10 @@ The methods are self explanatory, here's a small overview on all the available m
 
 ---
 
-* `getResult() : UAResult`
+* `getResult()`
     * returns `{ ua: '', browser: UABrowser {}, cpu: UACPU {}, device: UADevice {}, engine: UAEngine {}, os: UAOS {} }`
 
-* `getBrowser() : UABrowser`
+* `getBrowser()`
     * returns `{ name: '', version: '' }`
 
 ```sh
@@ -117,7 +117,7 @@ Vivaldi, Waterfox, WeChat, Weibo, Yandex, baidu, iCab, w3m, Whale Browser...
 # 'browser.version' determined dynamically
 ```
 
-* `getDevice() : UADevice`
+* `getDevice()`
     * returns `{ model: '', type: '', vendor: '' }`
 
 ```sh
@@ -141,7 +141,7 @@ Siemens, Sony[Ericsson], Sprint, Tesla, Vivo, Vodafone, Xbox, Xiaomi, Zebra, ZTE
 # 'device.model' determined dynamically
 ```
 
-* `getEngine() : UAEngine`
+* `getEngine()`
     * returns `{ name: '', version: '' }`
 
 ```sh
@@ -152,7 +152,7 @@ NetSurf, Presto, Tasman, Trident, w3m, WebKit
 # 'engine.version' determined dynamically
 ```
 
-* `getOS() : UAOS`
+* `getOS()`
     * returns `{ name: '', version: '' }`
 
 ```sh
@@ -169,7 +169,7 @@ Ubuntu, Unix, VectorLinux, Viera, watchOS, WebOS, Windows [Phone/Mobile], Zenwal
 # 'os.version' determined dynamically
 ```
 
-* `getCPU() : UACPU`
+* `getCPU()`
     * returns `{ architecture: '' }`
 
 ```sh
@@ -177,7 +177,7 @@ Ubuntu, Unix, VectorLinux, Viera, watchOS, WebOS, Windows [Phone/Mobile], Zenwal
 68k, amd64, arm[64/hf], avr, ia[32/64], irix[64], mips[64], pa-risc, ppc, sparc[64]
 ```
 
-* `getUA() : string`
+* `getUA()`
     * returns UA string of current instance
 
 * `setUA(uastring)`
@@ -479,7 +479,7 @@ Made with [contributors-img](https://contrib.rocks).
 
 MIT License
 
-Copyright (c) 2012-2021 Faisal Salman <<f@faisalman.com>>
+Copyright (c) 2012-2023 Faisal Salman <<f@faisalman.com>>
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
diff --git a/src/ua-parser.js b/src/ua-parser.js
index 188fbcb..a219a38 100755
--- a/src/ua-parser.js
+++ b/src/ua-parser.js
@@ -1,6 +1,6 @@
 /////////////////////////////////////////////////////////////////////////////////
 /* UAParser.js v1.1.34
-   Copyright © 2012-2021 Faisal Salman <f@faisalman.com>
+   Copyright © 2012-2023 Faisal Salman <f@faisalman.com>
    MIT License *//*
    Detect Browser, Engine, OS, CPU, and Device type/model from User-Agent data.
    Supports browser & node.js environment. 
@@ -802,8 +802,7 @@
     UAItem.prototype.then = function (callback) {
         return callback(this.data);
     };
-
-    var createUAData = function (data) {
+    UAItem.createUAData = function (data) {
         return (function () {
             var propIs = data.propIs;
             var ignoreIs = data.ignoreIs;
@@ -840,7 +839,7 @@
     };
 
     function UABrowser () {
-        this.data = createUAData({
+        this.data = UAItem.createUAData({
             props : [NAME, VERSION, MAJOR],
             propIs : [NAME],
             ignoreIs : ' ?browser$',
@@ -850,7 +849,7 @@
     UABrowser.prototype = new UAItem();
 
     function UACPU () {
-        this.data = createUAData({
+        this.data = UAItem.createUAData({
             props : [ARCHITECTURE],
             propIs : [ARCHITECTURE],
             propToStr : [ARCHITECTURE]
@@ -859,7 +858,7 @@
     UACPU.prototype = new UAItem();
 
     function UADevice () {
-        this.data = createUAData({
+        this.data = UAItem.createUAData({
             props : [TYPE, MODEL, VENDOR],
             propIs : [TYPE, MODEL, VENDOR],
             propToStr : [VENDOR, MODEL]
@@ -868,7 +867,7 @@
     UADevice.prototype = new UAItem();
 
     function UAEngine () {
-        this.data = createUAData({
+        this.data = UAItem.createUAData({
             props : [NAME, VERSION],
             propIs : [NAME],
             propToStr : [NAME, VERSION]
@@ -877,7 +876,7 @@
     UAEngine.prototype = new UAItem();
 
     function UAOS () {
-        this.data = createUAData({
+        this.data = UAItem.createUAData({
             props : [NAME, VERSION],
             propIs : [NAME],
             ignoreIs : ' ?os$',
diff --git a/test/test.js b/test/test.js
index a906e2c..7b4e4a4 100644
--- a/test/test.js
+++ b/test/test.js
@@ -228,7 +228,7 @@ describe('is() utility method', function () {
 
         uap.setUA("");
         assert.strictEqual(uap.getDevice().model, undefined);
-        assert.strictEqual(uap.getDevice().is("undefined"), true);
+        assert.strictEqual(uap.getDevice().is("undefined"), false);
         assert.strictEqual(uap.getDevice().is(undefined), true);
     });