diff --git a/packages/typescript-example/.gitignore b/packages/typescript-example/.gitignore
new file mode 100644
index 0000000000000000000000000000000000000000..e62f92aa809c7345cb05914d7143b0322ab6d725
--- /dev/null
+++ b/packages/typescript-example/.gitignore
@@ -0,0 +1,5 @@
+dist
+node_modules
+.idea
+npm-debug.log
+package-lock.json
diff --git a/packages/typescript-example/LICENSE b/packages/typescript-example/LICENSE
new file mode 100644
index 0000000000000000000000000000000000000000..4362b49151d7b34ef83b3067a8f9c9f877d72a0e
--- /dev/null
+++ b/packages/typescript-example/LICENSE
@@ -0,0 +1,502 @@
+                  GNU LESSER GENERAL PUBLIC LICENSE
+                       Version 2.1, February 1999
+
+ Copyright (C) 1991, 1999 Free Software Foundation, Inc.
+ 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ Everyone is permitted to copy and distribute verbatim copies
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+That's all there is to it!
diff --git a/packages/typescript-example/README.md b/packages/typescript-example/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..0b8e0cde67b10e7b63fbdce68004076b6d4dd576
--- /dev/null
+++ b/packages/typescript-example/README.md
@@ -0,0 +1,5 @@
+# Typescript Example Web Component
+
+This web component is just an example for how to write one using typescript.
+While we don't use typescript in our other components we want our dev/build
+pipeline to support it.
\ No newline at end of file
diff --git a/packages/typescript-example/assets/index.html b/packages/typescript-example/assets/index.html
new file mode 100644
index 0000000000000000000000000000000000000000..f2028df86b5b56f18cae1beb9fa3df866b3675d8
--- /dev/null
+++ b/packages/typescript-example/assets/index.html
@@ -0,0 +1,16 @@
+<!doctype html>
+<html>
+<head>
+    <meta charset="UTF-8">
+    <script type="module" src="dbp-typescript-example-demo.js"></script>
+    <style>
+    body {
+        font-family: sans;
+    }
+    </style>
+</head>
+
+<body>
+    <dbp-typescript-example-demo></dbp-typescript-example-demo>
+</body>
+</html>
diff --git a/packages/typescript-example/karma.conf.js b/packages/typescript-example/karma.conf.js
new file mode 100644
index 0000000000000000000000000000000000000000..ca038af2286e2ad631f1c58d7216fbe4054e4199
--- /dev/null
+++ b/packages/typescript-example/karma.conf.js
@@ -0,0 +1 @@
+module.exports = require('../../karma.common.conf.js');
diff --git a/packages/typescript-example/package.json b/packages/typescript-example/package.json
new file mode 100644
index 0000000000000000000000000000000000000000..7f0b37afd157da0aca21b518fd7b9e406490a34c
--- /dev/null
+++ b/packages/typescript-example/package.json
@@ -0,0 +1,40 @@
+{
+  "name": "@dbp-toolkit/typescript-example",
+  "version": "0.1.0",
+  "main": "src/index.js",
+  "license": "LGPL-2.1-or-later",
+  "private": true,
+  "devDependencies": {
+    "@rollup/plugin-commonjs": "^16.0.0",
+    "@rollup/plugin-json": "^4.1.0",
+    "@rollup/plugin-node-resolve": "^10.0.0",
+    "@types/mocha": "^8.2.0",
+    "chai": "^4.2.0",
+    "karma": "^5.1.0",
+    "karma-chrome-launcher": "^3.0.0",
+    "karma-firefox-launcher": "^2.1.0",
+    "karma-mocha": "^2.0.1",
+    "mocha": "^8.0.1",
+    "rollup": "^2.33.3",
+    "rollup-plugin-consts": "^1.0.1",
+    "rollup-plugin-copy": "^3.1.0",
+    "rollup-plugin-delete": "^2.0.0",
+    "rollup-plugin-serve": "^1.0.1",
+    "rollup-plugin-terser": "^7.0.2",
+    "rollup-plugin-typescript2": "^0.29.0",
+    "ts-lit-plugin": "^1.2.1",
+    "tslib": "^2.0.3",
+    "typescript": "^4.1.2"
+  },
+  "dependencies": {
+    "@dbp-toolkit/common": "^0.1.0",
+    "@open-wc/scoped-elements": "^1.3.2",
+    "lit-element": "^2.3.1"
+  },
+  "scripts": {
+    "clean": "rm dist/*",
+    "build": "rollup -c",
+    "watch": "rollup -c --watch",
+    "test": "rollup -c --environment BUILD:test && karma start --singleRun"
+  }
+}
diff --git a/packages/typescript-example/rollup.config.js b/packages/typescript-example/rollup.config.js
new file mode 100644
index 0000000000000000000000000000000000000000..4773e8a89798c400c733cbfb06e1164d9cf68b43
--- /dev/null
+++ b/packages/typescript-example/rollup.config.js
@@ -0,0 +1,50 @@
+import glob from 'glob';
+import resolve from '@rollup/plugin-node-resolve';
+import commonjs from '@rollup/plugin-commonjs';
+import copy from 'rollup-plugin-copy';
+import {terser} from "rollup-plugin-terser";
+import json from '@rollup/plugin-json';
+import serve from 'rollup-plugin-serve';
+import consts from 'rollup-plugin-consts';
+import del from 'rollup-plugin-delete';
+import typescript from 'rollup-plugin-typescript2';
+
+const build = (typeof process.env.BUILD !== 'undefined') ? process.env.BUILD : 'local';
+console.log("build: " + build);
+
+export default {
+    input: (build != 'test') ? ['src/dbp-typescript-example.ts', 'src/dbp-typescript-example-demo.ts'] : glob.sync('test/**/*.ts'),
+    output: {
+        dir: 'dist',
+        entryFileNames: '[name].js',
+        chunkFileNames: 'shared/[name].[hash].[format].js',
+        format: 'esm',
+        sourcemap: true
+    },
+    onwarn: function (warning, warn) {
+        // ignore chai warnings
+        if (warning.code === 'CIRCULAR_DEPENDENCY') {
+            return;
+        }
+        warn(warning);
+    },
+    plugins: [
+        del({
+            targets: 'dist/*'
+        }),
+        consts({
+            environment: build,
+        }),
+        resolve(),
+        commonjs(),
+        json(),
+        typescript(),
+        (build !== 'local' && build !== 'test') ? terser() : terser(),
+        copy({
+            targets: [
+                {src: 'assets/index.html', dest: 'dist'},
+            ],
+        }),
+        (process.env.ROLLUP_WATCH === 'true') ? serve({contentBase: 'dist', host: '127.0.0.1', port: 8002}) : false
+    ]
+};
diff --git a/packages/typescript-example/src/dbp-typescript-example-demo.ts b/packages/typescript-example/src/dbp-typescript-example-demo.ts
new file mode 100644
index 0000000000000000000000000000000000000000..30dc002f5791975a4068ae8f2d61187ad9980d6c
--- /dev/null
+++ b/packages/typescript-example/src/dbp-typescript-example-demo.ts
@@ -0,0 +1,22 @@
+// @ts-nocheck
+import {html, LitElement} from 'lit-element';
+import {TypeScriptExample} from './typescript-example';
+import * as commonUtils from '@dbp-toolkit/common/utils';
+import { ScopedElementsMixin } from '@open-wc/scoped-elements';
+
+export class TypeScriptExampleDemo extends ScopedElementsMixin(LitElement) {
+
+    static get scopedElements() {
+        return {
+          'dbp-typescript-example': TypeScriptExample,
+        };
+    }
+
+    render() {
+        return html`
+            <dbp-typescript-example lang="de"></dbp-typescript-example>
+        `;
+    }
+}
+
+commonUtils.defineCustomElement('dbp-typescript-example-demo', TypeScriptExampleDemo);
diff --git a/packages/typescript-example/src/dbp-typescript-example.ts b/packages/typescript-example/src/dbp-typescript-example.ts
new file mode 100644
index 0000000000000000000000000000000000000000..5637280cbafa201b8a2cdaebe0b9f2cbe9497a51
--- /dev/null
+++ b/packages/typescript-example/src/dbp-typescript-example.ts
@@ -0,0 +1,4 @@
+import * as commonUtils from '@dbp-toolkit/common/utils';
+import {TypeScriptExample} from './typescript-example';
+
+commonUtils.defineCustomElement('dbp-typescript-example', TypeScriptExample);
diff --git a/packages/typescript-example/src/i18n.ts b/packages/typescript-example/src/i18n.ts
new file mode 100644
index 0000000000000000000000000000000000000000..498d9f037b0a5ca481ec8de5df24640900285808
--- /dev/null
+++ b/packages/typescript-example/src/i18n.ts
@@ -0,0 +1,6 @@
+import {createInstance} from '@dbp-toolkit/common/i18next.js';
+
+import de from './i18n/de/translation.json';
+import en from './i18n/en/translation.json';
+
+export const i18n = createInstance({en: en, de: de}, 'de', 'en');
\ No newline at end of file
diff --git a/packages/typescript-example/src/i18n/de/translation.json b/packages/typescript-example/src/i18n/de/translation.json
new file mode 100644
index 0000000000000000000000000000000000000000..dcf5d832a1e6010fdbcbda76b507d5ee91396ab2
--- /dev/null
+++ b/packages/typescript-example/src/i18n/de/translation.json
@@ -0,0 +1,3 @@
+{
+  "hello-world": "Hallo Welt"
+}
diff --git a/packages/typescript-example/src/i18n/en/translation.json b/packages/typescript-example/src/i18n/en/translation.json
new file mode 100644
index 0000000000000000000000000000000000000000..29468fe3108dfb1acd2c7bf2953e150e0b02b40c
--- /dev/null
+++ b/packages/typescript-example/src/i18n/en/translation.json
@@ -0,0 +1,4 @@
+{
+    "hello-world": "Hello World"
+  }
+  
\ No newline at end of file
diff --git a/packages/typescript-example/src/index.ts b/packages/typescript-example/src/index.ts
new file mode 100644
index 0000000000000000000000000000000000000000..dbcc5d08855225a2103a96b7577e266d84313012
--- /dev/null
+++ b/packages/typescript-example/src/index.ts
@@ -0,0 +1 @@
+// no content
\ No newline at end of file
diff --git a/packages/typescript-example/src/typescript-example.ts b/packages/typescript-example/src/typescript-example.ts
new file mode 100644
index 0000000000000000000000000000000000000000..d57aff5b779c769d7d7b006aecadb8ea7b4aa86f
--- /dev/null
+++ b/packages/typescript-example/src/typescript-example.ts
@@ -0,0 +1,33 @@
+import {html,LitElement,property} from 'lit-element';
+import {i18n} from './i18n';
+
+export class TypeScriptExample extends LitElement {
+
+    private _i18n: any;
+
+    constructor() {
+        super();
+
+        this._i18n = i18n.cloneInstance();
+    }
+
+    @property({type: String})
+    lang = '';
+
+    update(changedProperties) {
+        changedProperties.forEach((oldValue, propName) => {
+            switch (propName) {
+                case "lang":
+                    this._i18n.changeLanguage(this.lang);
+                    break;
+            }
+        });
+        super.update(changedProperties);
+    }
+
+    render() {
+        return html`
+            <h3>${this._i18n.t('hello-world')}</h3>
+        `;
+    }
+}
\ No newline at end of file
diff --git a/packages/typescript-example/test/unit.ts b/packages/typescript-example/test/unit.ts
new file mode 100644
index 0000000000000000000000000000000000000000..c487d54323d3dae48c564a10ce512be4e918af57
--- /dev/null
+++ b/packages/typescript-example/test/unit.ts
@@ -0,0 +1,21 @@
+import {assert} from 'chai';
+
+import '../src/dbp-typescript-example';
+
+suite('dbp-language-select basics', () => {
+  let node
+
+  setup(async () => {
+    node = document.createElement('dbp-typescript-example');
+    document.body.appendChild(node);
+    await node.updateComplete;
+  });
+
+  teardown(() => {
+    node.remove();
+  });
+
+  test('should render', () => {
+    assert.isNotNull(node.shadowRoot);
+  });
+});
\ No newline at end of file
diff --git a/packages/typescript-example/tsconfig.json b/packages/typescript-example/tsconfig.json
new file mode 100644
index 0000000000000000000000000000000000000000..d33cea24ce38f4d54a45e14f302896bdd235c8be
--- /dev/null
+++ b/packages/typescript-example/tsconfig.json
@@ -0,0 +1,22 @@
+{
+  "compilerOptions": {
+    "target": "ESNext",
+    "module": "ESNext",
+    "lib": ["ESNext", "dom", "dom.iterable"],
+    "sourceMap": true,
+    "outDir": "./dist",
+    "rootDir": "./",
+    "moduleResolution": "node",
+    "experimentalDecorators": true,
+    "allowSyntheticDefaultImports": true,
+    "resolveJsonModule": true,
+    "plugins": [
+      {
+        "name": "ts-lit-plugin",
+        "strict": true
+      }
+    ]
+  },
+  "include": ["src/**/*.ts", "test/**/*.ts"],
+  "exclude": []
+}
\ No newline at end of file
diff --git a/yarn.lock b/yarn.lock
index 04cf9db946227329677791a1ba40c348c78a0d2d..7a521a20b0541803d8f0d427334206f4eee79c13 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -60,7 +60,7 @@
   resolved "https://registry.yarnpkg.com/@babel/parser/-/parser-7.12.5.tgz#b4af32ddd473c0bfa643bd7ff0728b8e71b81ea0"
   integrity sha512-FVM6RZQ0mn2KCf1VUED7KepYeUWoVShczewOCfm3nzoBybaih51h+sYVVGthW9M6lPByEPTQf+xm27PBdlpwmQ==
 
-"@babel/runtime@^7.12.0":
+"@babel/runtime@^7.10.2", "@babel/runtime@^7.12.0":
   version "7.12.5"
   resolved "https://registry.yarnpkg.com/@babel/runtime/-/runtime-7.12.5.tgz#410e7e487441e1b360c29be715d870d9b985882e"
   integrity sha512-plcc+hbExy3McchJCEQG3knOsuh3HH+Prx1P6cLIkET/0dLuQDEnrT+s27Axgc9bqfsmNUNHfscgMUdBpC9xfg==
@@ -1181,6 +1181,11 @@
   resolved "https://registry.yarnpkg.com/@types/minimist/-/minimist-1.2.1.tgz#283f669ff76d7b8260df8ab7a4262cc83d988256"
   integrity sha512-fZQQafSREFyuZcdWFAExYjBiCL7AUCdgsk80iO0q4yihYYdcIiH28CcuPTGFgLOCC8RlW49GSQxdHwZP+I7CNg==
 
+"@types/mocha@^8.2.0":
+  version "8.2.0"
+  resolved "https://registry.yarnpkg.com/@types/mocha/-/mocha-8.2.0.tgz#3eb56d13a1de1d347ecb1957c6860c911704bc44"
+  integrity sha512-/Sge3BymXo4lKc31C8OINJgXLaw+7vL1/L1pGiBNpGrBiT8FQiaFpSYV0uhTaG4y78vcMBTMFsWaHDvuD+xGzQ==
+
 "@types/node@*":
   version "14.14.8"
   resolved "https://registry.yarnpkg.com/@types/node/-/node-14.14.8.tgz#2127bd81949a95c8b7d3240f3254352d72563aec"
@@ -2852,6 +2857,15 @@ di@^0.0.1:
   resolved "https://registry.yarnpkg.com/di/-/di-0.0.1.tgz#806649326ceaa7caa3306d75d985ea2748ba913c"
   integrity sha1-gGZJMmzqp8qjMG112YXqJ0i6kTw=
 
+didyoumean2@4.1.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/didyoumean2/-/didyoumean2-4.1.0.tgz#f813cb7c82c249443e599be077f76e88f24b85e4"
+  integrity sha512-qTBmfQoXvhKO75D/05C8m+fteQmn4U46FWYiLhXtZQInzitXLWY0EQ/2oKnpAz9g2lQWW8jYcLcT+hPJGT+kig==
+  dependencies:
+    "@babel/runtime" "^7.10.2"
+    leven "^3.1.0"
+    lodash.deburr "^4.1.0"
+
 diff@4.0.2:
   version "4.0.2"
   resolved "https://registry.yarnpkg.com/diff/-/diff-4.0.2.tgz#60f3aecb89d5fae520c11aa19efc2bb982aade7d"
@@ -3517,6 +3531,15 @@ finalhandler@1.1.2:
     statuses "~1.5.0"
     unpipe "~1.0.0"
 
+find-cache-dir@^3.3.1:
+  version "3.3.1"
+  resolved "https://registry.yarnpkg.com/find-cache-dir/-/find-cache-dir-3.3.1.tgz#89b33fad4a4670daa94f855f7fbe31d6d84fe880"
+  integrity sha512-t2GDMt3oGC/v+BMwzmllWDuJF/xcDtE5j/fCGbqDD7OLuJkj0cfh1YSA5VKPvwMeLFLNDBkwOKZ2X85jGLVftQ==
+  dependencies:
+    commondir "^1.0.1"
+    make-dir "^3.0.2"
+    pkg-dir "^4.1.0"
+
 find-up@5.0.0:
   version "5.0.0"
   resolved "https://registry.yarnpkg.com/find-up/-/find-up-5.0.0.tgz#4c92819ecb7083561e4f4a240a86be5198f536fc"
@@ -3547,7 +3570,7 @@ find-up@^3.0.0:
   dependencies:
     locate-path "^3.0.0"
 
-find-up@^4.1.0:
+find-up@^4.0.0, find-up@^4.1.0:
   version "4.1.0"
   resolved "https://registry.yarnpkg.com/find-up/-/find-up-4.1.0.tgz#97afe7d6cdc0bc5928584b7c8d7b16e8a9aa5d19"
   integrity sha512-PpOwAdQ/YlXQ2vj8a3h8IipDuYRi3wceVQQGYWxNINccq40Anw7BlsEXCMbt1Zt+OLA6Fq9suIpIWD0OsnISlw==
@@ -3621,7 +3644,7 @@ from2@^2.1.0:
     inherits "^2.0.1"
     readable-stream "^2.0.0"
 
-fs-extra@^8.1.0:
+fs-extra@8.1.0, fs-extra@^8.1.0:
   version "8.1.0"
   resolved "https://registry.yarnpkg.com/fs-extra/-/fs-extra-8.1.0.tgz#49d43c45a88cd9677668cb7be1b46efdb8d2e1c0"
   integrity sha512-yhlQgA6mnOJUKOsRUFsgJdQCvkKhcz8tlZG5HBQfReYZy46OwLcY+Zia0mtdHsOo9y/hP+CxMN0TU9QxoOtG4g==
@@ -4986,6 +5009,11 @@ lerna@^3.22.1:
     import-local "^2.0.0"
     npmlog "^4.1.2"
 
+leven@^3.1.0:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/leven/-/leven-3.1.0.tgz#77891de834064cccba82ae7842bb6b14a13ed7f2"
+  integrity sha512-qsda+H8jTaUaN/x5vzW2rzc+8Rw4TAQ/4KjB46IwK5VH+IlVeeeje/EoZRpiXvIqjFgK84QffqPztGI3VBLG1A==
+
 levn@^0.4.1:
   version "0.4.1"
   resolved "https://registry.yarnpkg.com/levn/-/levn-0.4.1.tgz#ae4562c007473b932a6200d403268dd2fffc6ade"
@@ -5006,6 +5034,20 @@ lines-and-columns@^1.1.6:
   resolved "https://registry.yarnpkg.com/lines-and-columns/-/lines-and-columns-1.1.6.tgz#1c00c743b433cd0a4e80758f7b64a57440d9ff00"
   integrity sha1-HADHQ7QzzQpOgHWPe2SldEDZ/wA=
 
+lit-analyzer@1.2.1:
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/lit-analyzer/-/lit-analyzer-1.2.1.tgz#725331a4019ae870dd631d4dd709d39a237161ea"
+  integrity sha512-OEARBhDidyaQENavLbzpTKbEmu5rnAI+SdYsH4ia1BlGlLiqQXoym7uH1MaRPtwtUPbkhUfT4OBDZ+74VHc3Cg==
+  dependencies:
+    chalk "^2.4.2"
+    didyoumean2 "4.1.0"
+    fast-glob "^2.2.6"
+    parse5 "5.1.0"
+    ts-simple-type "~1.0.5"
+    vscode-css-languageservice "4.3.0"
+    vscode-html-languageservice "3.1.0"
+    web-component-analyzer "~1.1.1"
+
 lit-element@^2.1.0, lit-element@^2.3.1:
   version "2.4.0"
   resolved "https://registry.yarnpkg.com/lit-element/-/lit-element-2.4.0.tgz#b22607a037a8fc08f5a80736dddf7f3f5d401452"
@@ -5104,6 +5146,11 @@ lodash.clonedeep@^4.5.0:
   resolved "https://registry.yarnpkg.com/lodash.clonedeep/-/lodash.clonedeep-4.5.0.tgz#e23f3f9c4f8fbdde872529c1071857a086e5ccef"
   integrity sha1-4j8/nE+Pvd6HJSnBBxhXoIblzO8=
 
+lodash.deburr@^4.1.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/lodash.deburr/-/lodash.deburr-4.1.0.tgz#ddb1bbb3ef07458c0177ba07de14422cb033ff9b"
+  integrity sha1-3bG7s+8HRYwBd7oH3hRCLLAz/5s=
+
 lodash.get@^4.4.2:
   version "4.4.2"
   resolved "https://registry.yarnpkg.com/lodash.get/-/lodash.get-4.4.2.tgz#2d177f652fa31e939b4438d5341499dfa3825e99"
@@ -5221,7 +5268,7 @@ make-dir@^2.1.0:
     pify "^4.0.1"
     semver "^5.6.0"
 
-make-dir@^3.0.0:
+make-dir@^3.0.0, make-dir@^3.0.2:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/make-dir/-/make-dir-3.1.0.tgz#415e967046b3a7f1d185277d84aa58203726a13f"
   integrity sha512-g3FeP20LNwhALb/6Cz6Dd4F2ngze0jz7tbzrD2wAV+o9FeNHe4rL+yK2md0J/fiSf1sa1ADhXqi5+oVwOM/eGw==
@@ -6144,6 +6191,11 @@ parse-url@^5.0.0:
     parse-path "^4.0.0"
     protocols "^1.4.0"
 
+parse5@5.1.0:
+  version "5.1.0"
+  resolved "https://registry.yarnpkg.com/parse5/-/parse5-5.1.0.tgz#c59341c9723f414c452975564c7c00a68d58acd2"
+  integrity sha512-fxNG2sQjHvlVAYmzBZS9YlDp6PTSSDwa98vkD4QgVDDCAo84z5X1t5XyJQ62ImdLXx5NdIIfihey6xpum9/gRQ==
+
 parse5@^6.0.0:
   version "6.0.1"
   resolved "https://registry.yarnpkg.com/parse5/-/parse5-6.0.1.tgz#e1a1c085c569b3dc08321184f19a39cc27f7c30b"
@@ -6310,6 +6362,13 @@ pkg-dir@^3.0.0:
   dependencies:
     find-up "^3.0.0"
 
+pkg-dir@^4.1.0:
+  version "4.2.0"
+  resolved "https://registry.yarnpkg.com/pkg-dir/-/pkg-dir-4.2.0.tgz#f099133df7ede422e81d1d8448270eeb3e4261f3"
+  integrity sha512-HRDzbaKjC+AOWVXxAU/x54COGeIv9eb+6CkDSQoNTt4XyWoIJvuPsXizxu/Fr23EiekbtZwmh1IcIG/l/a10GQ==
+  dependencies:
+    find-up "^4.0.0"
+
 posix-character-classes@^0.1.0:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/posix-character-classes/-/posix-character-classes-0.1.1.tgz#01eac0fe3b5af71a2a6c02feabb8c1fef7e00eab"
@@ -7113,6 +7172,13 @@ resolve-url@^0.2.1:
   resolved "https://registry.yarnpkg.com/resolve-url/-/resolve-url-0.2.1.tgz#2c637fe77c893afd2a663fe21aa9080068e2052a"
   integrity sha1-LGN/53yJOv0qZj/iGqkIAGjiBSo=
 
+resolve@1.17.0:
+  version "1.17.0"
+  resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.17.0.tgz#b25941b54968231cc2d1bb76a79cb7f2c0bf8444"
+  integrity sha512-ic+7JYiV8Vi2yzQGFWOkiZD5Z9z7O2Zhm9XMaTxdJExKasieFCr+yXZ/WmXsckHiKl12ar0y6XiXDx3m4RHn1w==
+  dependencies:
+    path-parse "^1.0.6"
+
 resolve@^1.10.0, resolve@^1.12.0, resolve@^1.16.1, resolve@^1.17.0:
   version "1.19.0"
   resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.19.0.tgz#1af5bf630409734a067cae29318aac7fa29a267c"
@@ -7251,6 +7317,17 @@ rollup-plugin-terser@^7.0.2:
     serialize-javascript "^4.0.0"
     terser "^5.0.0"
 
+rollup-plugin-typescript2@^0.29.0:
+  version "0.29.0"
+  resolved "https://registry.yarnpkg.com/rollup-plugin-typescript2/-/rollup-plugin-typescript2-0.29.0.tgz#b7ad83f5241dbc5bdf1e98d9c3fca005ffe39e1a"
+  integrity sha512-YytahBSZCIjn/elFugEGQR5qTsVhxhUwGZIsA9TmrSsC88qroGo65O5HZP/TTArH2dm0vUmYWhKchhwi2wL9bw==
+  dependencies:
+    "@rollup/pluginutils" "^3.1.0"
+    find-cache-dir "^3.3.1"
+    fs-extra "8.1.0"
+    resolve "1.17.0"
+    tslib "2.0.1"
+
 rollup-pluginutils@^2.8.2:
   version "2.8.2"
   resolved "https://registry.yarnpkg.com/rollup-pluginutils/-/rollup-pluginutils-2.8.2.tgz#72f2af0748b592364dbd3389e600e5a9444a351e"
@@ -8174,12 +8251,29 @@ trim-off-newlines@^1.0.0:
   resolved "https://registry.yarnpkg.com/trim-off-newlines/-/trim-off-newlines-1.0.1.tgz#9f9ba9d9efa8764c387698bcbfeb2c848f11adb3"
   integrity sha1-n5up2e+odkw4dpi8v+sshI8RrbM=
 
+ts-lit-plugin@^1.2.1:
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/ts-lit-plugin/-/ts-lit-plugin-1.2.1.tgz#7fca17a454645c14911917fa7f17ade582fa3056"
+  integrity sha512-k/Me+aT1N9ckC/KuJCAlAJgCHFezOxuOGOzBE0q42xnKbJnUMNl08WqWF6C7OKecCPHIMRk5Wj5o6MDsmt9+qA==
+  dependencies:
+    lit-analyzer "1.2.1"
+
+ts-simple-type@~1.0.5:
+  version "1.0.7"
+  resolved "https://registry.yarnpkg.com/ts-simple-type/-/ts-simple-type-1.0.7.tgz#03930af557528dd40eaa121913c7035a0baaacf8"
+  integrity sha512-zKmsCQs4dZaeSKjEA7pLFDv7FHHqAFLPd0Mr//OIJvu8M+4p4bgSFJwZSEBEg3ec9W7RzRz1vi8giiX0+mheBQ==
+
+tslib@2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/tslib/-/tslib-2.0.1.tgz#410eb0d113e5b6356490eec749603725b021b43e"
+  integrity sha512-SgIkNheinmEBgx1IUNirK0TUD4X9yjjBRTqqjggWCU3pUEqIk3/Uwl3yRixYKT6WjQuGiwDv4NomL3wqRCj+CQ==
+
 tslib@^1.9.0, tslib@^1.9.3:
   version "1.14.1"
   resolved "https://registry.yarnpkg.com/tslib/-/tslib-1.14.1.tgz#cf2d38bdc34a134bcaf1091c41f6619e2f672d00"
   integrity sha512-Xni35NKzjgMrwevysHTCArtLDpPvye8zV/0E4EyYn43P7/7qvQwPh9BGkHewbMulVntbigmcT7rdX3BNo9wRJg==
 
-tslib@^2.0.0:
+tslib@^2.0.0, tslib@^2.0.3:
   version "2.0.3"
   resolved "https://registry.yarnpkg.com/tslib/-/tslib-2.0.3.tgz#8e0741ac45fc0c226e58a17bfc3e64b9bc6ca61c"
   integrity sha512-uZtkfKblCEQtZKBF6EBXVZeQNl82yqtDQdv+eck8u7tdPxjLu2/lp5/uPW+um2tpuxINHWy3GhiccY7QgEaVHQ==
@@ -8241,6 +8335,16 @@ typedarray@^0.0.6:
   resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
   integrity sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c=
 
+typescript@^3.8.3:
+  version "3.9.7"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.9.7.tgz#98d600a5ebdc38f40cb277522f12dc800e9e25fa"
+  integrity sha512-BLbiRkiBzAwsjut4x/dsibSTB6yWpwT5qWmC2OfuCg3GgVQCSgMs4vEctYPhsaGtd0AeuuHMkjZ2h2WG8MSzRw==
+
+typescript@^4.1.2:
+  version "4.1.2"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.1.2.tgz#6369ef22516fe5e10304aae5a5c4862db55380e9"
+  integrity sha512-thGloWsGH3SOxv1SoY7QojKi0tc+8FnOmiarEGMbd/lar7QOEd3hvlx3Fp5y6FlDUGl9L+pd4n2e+oToGMmhRQ==
+
 ua-parser-js@0.7.22:
   version "0.7.22"
   resolved "https://registry.yarnpkg.com/ua-parser-js/-/ua-parser-js-0.7.22.tgz#960df60a5f911ea8f1c818f3747b99c6e177eae3"
@@ -8509,6 +8613,46 @@ void-elements@^2.0.0:
   resolved "https://registry.yarnpkg.com/void-elements/-/void-elements-2.0.1.tgz#c066afb582bb1cb4128d60ea92392e94d5e9dbec"
   integrity sha1-wGavtYK7HLQSjWDqkjkulNXp2+w=
 
+vscode-css-languageservice@4.3.0:
+  version "4.3.0"
+  resolved "https://registry.yarnpkg.com/vscode-css-languageservice/-/vscode-css-languageservice-4.3.0.tgz#40c797d664ab6188cace33cfbb19b037580a9318"
+  integrity sha512-BkQAMz4oVHjr0oOAz5PdeE72txlLQK7NIwzmclfr+b6fj6I8POwB+VoXvrZLTbWt9hWRgfvgiQRkh5JwrjPJ5A==
+  dependencies:
+    vscode-languageserver-textdocument "^1.0.1"
+    vscode-languageserver-types "3.16.0-next.2"
+    vscode-nls "^4.1.2"
+    vscode-uri "^2.1.2"
+
+vscode-html-languageservice@3.1.0:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/vscode-html-languageservice/-/vscode-html-languageservice-3.1.0.tgz#265b53bda595e6947b16b0fb8c604e1e58685393"
+  integrity sha512-QAyRHI98bbEIBCqTzZVA0VblGU40na0txggongw5ZgTj9UVsVk5XbLT16O9OTcbqBGSqn0oWmFDNjK/XGIDcqg==
+  dependencies:
+    vscode-languageserver-textdocument "^1.0.1"
+    vscode-languageserver-types "3.16.0-next.2"
+    vscode-nls "^4.1.2"
+    vscode-uri "^2.1.2"
+
+vscode-languageserver-textdocument@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/vscode-languageserver-textdocument/-/vscode-languageserver-textdocument-1.0.1.tgz#178168e87efad6171b372add1dea34f53e5d330f"
+  integrity sha512-UIcJDjX7IFkck7cSkNNyzIz5FyvpQfY7sdzVy+wkKN/BLaD4DQ0ppXQrKePomCxTS7RrolK1I0pey0bG9eh8dA==
+
+vscode-languageserver-types@3.16.0-next.2:
+  version "3.16.0-next.2"
+  resolved "https://registry.yarnpkg.com/vscode-languageserver-types/-/vscode-languageserver-types-3.16.0-next.2.tgz#940bd15c992295a65eae8ab6b8568a1e8daa3083"
+  integrity sha512-QjXB7CKIfFzKbiCJC4OWC8xUncLsxo19FzGVp/ADFvvi87PlmBSCAtZI5xwGjF5qE0xkLf0jjKUn3DzmpDP52Q==
+
+vscode-nls@^4.1.2:
+  version "4.1.2"
+  resolved "https://registry.yarnpkg.com/vscode-nls/-/vscode-nls-4.1.2.tgz#ca8bf8bb82a0987b32801f9fddfdd2fb9fd3c167"
+  integrity sha512-7bOHxPsfyuCqmP+hZXscLhiHwe7CSuFE4hyhbs22xPIhQ4jv99FcR4eBzfYYVLP356HNFpdvz63FFb/xw6T4Iw==
+
+vscode-uri@^2.1.2:
+  version "2.1.2"
+  resolved "https://registry.yarnpkg.com/vscode-uri/-/vscode-uri-2.1.2.tgz#c8d40de93eb57af31f3c715dd650e2ca2c096f1c"
+  integrity sha512-8TEXQxlldWAuIODdukIb+TR5s+9Ds40eSJrw+1iDDA9IFORPjMELarNQE3myz5XIkWWpdprmJjm1/SxMlWOC8A==
+
 wcwidth@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/wcwidth/-/wcwidth-1.0.1.tgz#f0b0dcf915bc5ff1528afadb2c0e17b532da2fe8"
@@ -8516,6 +8660,16 @@ wcwidth@^1.0.0:
   dependencies:
     defaults "^1.0.3"
 
+web-component-analyzer@~1.1.1:
+  version "1.1.6"
+  resolved "https://registry.yarnpkg.com/web-component-analyzer/-/web-component-analyzer-1.1.6.tgz#d9bd904d904a711c19ba6046a45b60a7ee3ed2e9"
+  integrity sha512-1PyBkb/jijDEVE+Pnk3DTmVHD8takipdvAwvZv1V8jIidsSIJ5nhN87Gs+4dpEb1vw48yp8dnbZKkvMYJ+C0VQ==
+  dependencies:
+    fast-glob "^3.2.2"
+    ts-simple-type "~1.0.5"
+    typescript "^3.8.3"
+    yargs "^15.3.1"
+
 webdav@^3.6.1:
   version "3.6.1"
   resolved "https://registry.yarnpkg.com/webdav/-/webdav-3.6.1.tgz#ab01f8067faf748abe3938720dcaeb39836d78e3"