diff --git a/gulpfile.babel.js b/gulpfile.babel.js
index 4ca96a6..ceb2f2d 100644
--- a/gulpfile.babel.js
+++ b/gulpfile.babel.js
@@ -8,6 +8,9 @@ import runSequence from 'run-sequence';
 import fs from 'fs';
 import github from 'conventional-github-releaser';
 import dotenv from 'dotenv';
+import ts from 'gulp-typescript';
+
+const project = ts.createProject('tsconfig.json');
 
 dotenv.config();
 
@@ -17,6 +20,10 @@ const opts = minimist(process.argv.slice(2), {
   semver: process.env.SEMVER || 'patch',
 });
 
+gulp.task('typescript', () => gulp
+  .src('lib/**/*.ts')
+  .pipe(project())
+  .pipe(gulp.dest('lib')));
 
 gulp.task('changelog', () => gulp
   .src('CHANGELOG.md', { buffer: false })
@@ -55,7 +62,7 @@ gulp.task('create-new-tag', done =>
   }));
 
 gulp.task('release', done =>
-  runSequence('bump-version', 'changelog', 'commit-changelog', 'push-changes', 'create-new-tag', 'github-release', (err) => {
+  runSequence('typescript', 'bump-version', 'changelog', 'commit-changelog', 'push-changes', 'create-new-tag', 'github-release', (err) => {
     if (err) {
       log.error(err.message);
     } else {
diff --git a/lib/index.d.ts b/lib/index.d.ts
new file mode 100644
index 0000000..f57860c
--- /dev/null
+++ b/lib/index.d.ts
@@ -0,0 +1,3 @@
+declare const $: (el: any, selector?: any) => HTMLElement | Error | HTMLElement[];
+declare const $$: (el: any, selector?: any) => HTMLElement | Error | HTMLElement[];
+export { $, $$, };
diff --git a/lib/index.js b/lib/index.js
index 636627e..b0b02f5 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -5,7 +5,6 @@ const queryType = {
   single: true,
   multiple: false,
 };
-
 const isNanOrInfinite = (el, selector) => {
   const result = [
     Number.isNaN(el),
@@ -13,14 +12,11 @@ const isNanOrInfinite = (el, selector) => {
     Number.isFinite(el),
     Number.isFinite(selector),
   ];
-
-  return result.find(x => x);
+  return result.some(x => x);
 };
-
 const errorHanler = (isSingle, { el, selector }) => {
   const root = document.querySelector(el);
   const isNan = isNanOrInfinite(el, selector);
-
   if (isNan && isNan.toString().length !== 0) {
     throw new Error(errorSelector);
   } else if (isSingle) {
@@ -28,33 +24,22 @@ const errorHanler = (isSingle, { el, selector }) => {
       isDom(root.querySelector(selector)) :
       isDom(root);
   }
-
   return selector ?
     isDom(...root.querySelectorAll(selector)) :
-    isDom(...document.querySelectorAll(el));
+    isDom(...Array.from(document.querySelectorAll(el)));
 };
-
-
 const core = (type, ...args) => {
   const isSingle = type === queryType.single;
   const [el, selector] = args;
   const root = document.querySelector(el);
-
   if (errorHanler(isSingle, { el, selector })) {
     if (selector) {
       return isSingle ? root.querySelector(selector) : [...root.querySelectorAll(selector)];
     }
-    return isSingle ? root : [...document.querySelectorAll(el)];
+    return isSingle ? root : Array.from(document.querySelectorAll(el));
   }
-
   throw new Error(errorSelector);
 };
-
-const $ = (el, selector = undefined) => core(queryType.single, el, selector);
-
-const $$ = (el, selector = undefined) => core(queryType.multiple, el, selector);
-
-export {
-  $,
-  $$,
-};
+const $ = (el, selector) => core(queryType.single, el, selector);
+const $$ = (el, selector) => core(queryType.multiple, el, selector);
+export { $, $$ };
diff --git a/lib/index.ts b/lib/index.ts
new file mode 100644
index 0000000..9c97025
--- /dev/null
+++ b/lib/index.ts
@@ -0,0 +1,67 @@
+import isDom from 'is-dom';
+
+const errorSelector = 'Selector does not exists in the DOM';
+
+interface IQueryType {
+  single: boolean;
+  multiple: boolean;
+}
+
+const queryType = {
+  single: true,
+  multiple: false,
+};
+
+const isNanOrInfinite = (el: any, selector: any) => {
+  const result = [
+    Number.isNaN(el),
+    Number.isNaN(selector),
+    Number.isFinite(el),
+    Number.isFinite(selector),
+  ];
+
+  return result.some(x => x);
+};
+
+const errorHanler = (isSingle: boolean, { el, selector }: { el: any, selector: any }): boolean => {
+  const root = document.querySelector(el);
+  const isNan = isNanOrInfinite(el, selector);
+
+  if (isNan && isNan.toString().length !== 0) {
+    throw new Error(errorSelector);
+  } else if (isSingle) {
+    return selector ?
+      isDom(root.querySelector(selector)) :
+      isDom(root);
+  }
+
+  return selector ?
+    isDom(...root.querySelectorAll(selector)) :
+    isDom(...Array.from(document.querySelectorAll(el)));
+};
+
+
+const core = (type: boolean, ...args: Array<any>): HTMLElement | Array<HTMLElement> | Error => {
+  const isSingle = type === queryType.single;
+  const [el, selector] = args;
+  const root = document.querySelector(el);
+
+  if (errorHanler(isSingle, { el, selector })) {
+    if (selector) {
+      return isSingle ? root.querySelector(selector) : [...root.querySelectorAll(selector)];
+    }
+    return isSingle ? root : Array.from(document.querySelectorAll(el));
+  }
+
+  throw new Error(errorSelector);
+};
+
+
+const $ = (el: any, selector?: any) => core(queryType.single, el, selector);
+
+const $$ = (el: any, selector?: any) => core(queryType.multiple, el, selector);
+
+export {
+  $,
+  $$,
+};
\ No newline at end of file
diff --git a/lib/shim.d.ts b/lib/shim.d.ts
new file mode 100644
index 0000000..d623d97
--- /dev/null
+++ b/lib/shim.d.ts
@@ -0,0 +1 @@
+declare module 'is-dom';
\ No newline at end of file
diff --git a/package.json b/package.json
index 19bbe71..70c5603 100644
--- a/package.json
+++ b/package.json
@@ -14,6 +14,9 @@
   "files": [
     "lib/index.js"
   ],
+  "types": [
+    "lib/index.d.ts"
+  ],
   "bugs": {
     "url": "https://github.com/lbenie/qselector/issues"
   },
@@ -65,6 +68,7 @@
     "gulp-bump": "^3.1.1",
     "gulp-conventional-changelog": "^1.1.24",
     "gulp-git": "^2.5.2",
+    "gulp-typescript": "^4.0.2",
     "husky": "^1.0.0-rc.2",
     "jest": "^22.4.3",
     "lint-staged": "^7.0.5",
@@ -76,7 +80,9 @@
     "stryker-baseline-reporter": "^1.0.3",
     "stryker-html-reporter": "^0.13.3",
     "stryker-javascript-mutator": "^0.6.3",
-    "stryker-jest-runner": "^0.6.0"
+    "stryker-jest-runner": "^0.6.0",
+    "ts-jest": "^22.4.6",
+    "typescript": "^2.9.1"
   },
   "engines": {
     "node": ">=8"
diff --git a/tsconfig.json b/tsconfig.json
new file mode 100644
index 0000000..a9d28dd
--- /dev/null
+++ b/tsconfig.json
@@ -0,0 +1,24 @@
+{
+  "compilerOptions": {
+    "target": "es2015",
+    "module": "es2015",
+    "strict": true,
+    "moduleResolution": "node",
+    "allowSyntheticDefaultImports": true,
+    "sourceMap": true,
+    "declaration": true,
+    "lib": [
+      "es6",
+      "dom",
+      "dom.iterable",
+      "scripthost",
+    ],
+    "baseUrl": "."
+  },
+  "include": [
+    "lib/**/*.ts",
+  ],
+  "exclude": [
+    "node_modules"
+  ]
+}
diff --git a/yarn.lock b/yarn.lock
index 3bb2d2e..4afe6ad 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -299,6 +299,13 @@ any-shell-escape@^0.1.1:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/any-shell-escape/-/any-shell-escape-0.1.1.tgz#d55ab972244c71a9a5e1ab0879f30bf110806959"
 
+anymatch@^1.3.0:
+  version "1.3.2"
+  resolved "https://registry.yarnpkg.com/anymatch/-/anymatch-1.3.2.tgz#553dcb8f91e3c889845dfdba34c77721b90b9d7a"
+  dependencies:
+    micromatch "^2.1.5"
+    normalize-path "^2.0.0"
+
 anymatch@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/anymatch/-/anymatch-2.0.0.tgz#bcb24b4f37934d9aa7ac17b4adaf89e7c76ef2eb"
@@ -310,6 +317,12 @@ app-root-path@^2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/app-root-path/-/app-root-path-2.0.1.tgz#cd62dcf8e4fd5a417efc664d2e5b10653c651b46"
 
+append-buffer@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/append-buffer/-/append-buffer-1.0.2.tgz#d8220cf466081525efea50614f3de6514dfa58f1"
+  dependencies:
+    buffer-equal "^1.0.0"
+
 append-transform@^0.4.0:
   version "0.4.0"
   resolved "https://registry.yarnpkg.com/append-transform/-/append-transform-0.4.0.tgz#d76ebf8ca94d276e247a36bad44a4b74ab611991"
@@ -385,6 +398,10 @@ array-equal@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/array-equal/-/array-equal-1.0.0.tgz#8c2a5ef2472fd9ea742b04c77a75093ba2757c93"
 
+array-filter@~0.0.0:
+  version "0.0.1"
+  resolved "https://registry.yarnpkg.com/array-filter/-/array-filter-0.0.1.tgz#7da8cf2e26628ed732803581fd21f67cacd2eeec"
+
 array-find-index@^1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/array-find-index/-/array-find-index-1.0.2.tgz#df010aa1287e164bbda6f9723b0a96a1ec4187a1"
@@ -400,6 +417,14 @@ array-includes@^3.0.3:
     define-properties "^1.1.2"
     es-abstract "^1.7.0"
 
+array-map@~0.0.0:
+  version "0.0.0"
+  resolved "https://registry.yarnpkg.com/array-map/-/array-map-0.0.0.tgz#88a2bab73d1cf7bcd5c1b118a003f66f665fa662"
+
+array-reduce@~0.0.0:
+  version "0.0.0"
+  resolved "https://registry.yarnpkg.com/array-reduce/-/array-reduce-0.0.0.tgz#173899d3ffd1c7d9383e4479525dbe278cab5f2b"
+
 array-slice@^0.2.3:
   version "0.2.3"
   resolved "https://registry.yarnpkg.com/array-slice/-/array-slice-0.2.3.tgz#dd3cfb80ed7973a75117cdac69b0b99ec86186f5"
@@ -458,6 +483,10 @@ astral-regex@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/astral-regex/-/astral-regex-1.0.0.tgz#6c8c3fb827dd43ee3918f27b82782ab7658a6fd9"
 
+async-each@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/async-each/-/async-each-1.0.1.tgz#19d386a1d9edc6e7c1c85d388aedbcc56d33602d"
+
 async-limiter@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/async-limiter/-/async-limiter-1.0.0.tgz#78faed8c3d074ab81f22b4e985d79e8738f720f8"
@@ -530,6 +559,30 @@ babel-core@^6.0.0, babel-core@^6.26.0:
     slash "^1.0.0"
     source-map "^0.5.6"
 
+babel-core@^6.26.3:
+  version "6.26.3"
+  resolved "https://registry.yarnpkg.com/babel-core/-/babel-core-6.26.3.tgz#b2e2f09e342d0f0c88e2f02e067794125e75c207"
+  dependencies:
+    babel-code-frame "^6.26.0"
+    babel-generator "^6.26.0"
+    babel-helpers "^6.24.1"
+    babel-messages "^6.23.0"
+    babel-register "^6.26.0"
+    babel-runtime "^6.26.0"
+    babel-template "^6.26.0"
+    babel-traverse "^6.26.0"
+    babel-types "^6.26.0"
+    babylon "^6.18.0"
+    convert-source-map "^1.5.1"
+    debug "^2.6.9"
+    json5 "^0.5.1"
+    lodash "^4.17.4"
+    minimatch "^3.0.4"
+    path-is-absolute "^1.0.1"
+    private "^0.1.8"
+    slash "^1.0.0"
+    source-map "^0.5.7"
+
 babel-generator@^6.18.0, babel-generator@^6.26.0:
   version "6.26.1"
   resolved "https://registry.yarnpkg.com/babel-generator/-/babel-generator-6.26.1.tgz#1844408d3b8f0d35a404ea7ac180f087a601bd90"
@@ -663,7 +716,7 @@ babel-plugin-check-es2015-constants@^6.22.0:
   dependencies:
     babel-runtime "^6.22.0"
 
-babel-plugin-istanbul@^4.1.5:
+babel-plugin-istanbul@^4.1.5, babel-plugin-istanbul@^4.1.6:
   version "4.1.6"
   resolved "https://registry.yarnpkg.com/babel-plugin-istanbul/-/babel-plugin-istanbul-4.1.6.tgz#36c59b2192efce81c5b378321b74175add1c9a45"
   dependencies:
@@ -793,6 +846,15 @@ babel-plugin-transform-es2015-modules-commonjs@^6.23.0, babel-plugin-transform-e
     babel-template "^6.26.0"
     babel-types "^6.26.0"
 
+babel-plugin-transform-es2015-modules-commonjs@^6.26.2:
+  version "6.26.2"
+  resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-modules-commonjs/-/babel-plugin-transform-es2015-modules-commonjs-6.26.2.tgz#58a793863a9e7ca870bdc5a881117ffac27db6f3"
+  dependencies:
+    babel-plugin-transform-strict-mode "^6.24.1"
+    babel-runtime "^6.26.0"
+    babel-template "^6.26.0"
+    babel-types "^6.26.0"
+
 babel-plugin-transform-es2015-modules-systemjs@^6.23.0, babel-plugin-transform-es2015-modules-systemjs@^6.24.1:
   version "6.24.1"
   resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-modules-systemjs/-/babel-plugin-transform-es2015-modules-systemjs-6.24.1.tgz#ff89a142b9119a906195f5f106ecf305d9407d23"
@@ -980,7 +1042,7 @@ babel-register@^6.26.0:
     mkdirp "^0.5.1"
     source-map-support "^0.4.15"
 
-babel-runtime@6.26.0, babel-runtime@^6.18.0, babel-runtime@^6.22.0, babel-runtime@^6.23.0, babel-runtime@^6.26.0:
+babel-runtime@6.26.0, babel-runtime@^6.18.0, babel-runtime@^6.22.0, babel-runtime@^6.23.0, babel-runtime@^6.26.0, babel-runtime@^6.9.2:
   version "6.26.0"
   resolved "https://registry.yarnpkg.com/babel-runtime/-/babel-runtime-6.26.0.tgz#965c7058668e82b55d7bfe04ff2337bc8b5647fe"
   dependencies:
@@ -1050,6 +1112,10 @@ beeper@^1.0.0:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/beeper/-/beeper-1.1.1.tgz#e6d5ea8c5dad001304a70b22638447f69cb2f809"
 
+binary-extensions@^1.0.0:
+  version "1.11.0"
+  resolved "https://registry.yarnpkg.com/binary-extensions/-/binary-extensions-1.11.0.tgz#46aa1751fb6a2f93ee5e689bb1087d4b14c6c205"
+
 block-stream@*:
   version "0.0.9"
   resolved "https://registry.yarnpkg.com/block-stream/-/block-stream-0.0.9.tgz#13ebfe778a03205cfe03751481ebb4b3300c126a"
@@ -1127,6 +1193,10 @@ bser@^2.0.0:
   dependencies:
     node-int64 "^0.4.0"
 
+buffer-equal@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/buffer-equal/-/buffer-equal-1.0.0.tgz#59616b498304d556abd466966b22eeda3eca5fbe"
+
 buffer-from@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/buffer-from/-/buffer-from-1.0.0.tgz#4cb8832d23612589b0406e9e2956c17f06fdf531"
@@ -1256,6 +1326,25 @@ chardet@^0.4.0:
   version "0.4.2"
   resolved "https://registry.yarnpkg.com/chardet/-/chardet-0.4.2.tgz#b5473b33dc97c424e5d98dc87d55d4d8a29c8bf2"
 
+chokidar@^1.6.0:
+  version "1.7.0"
+  resolved "https://registry.yarnpkg.com/chokidar/-/chokidar-1.7.0.tgz#798e689778151c8076b4b360e5edd28cda2bb468"
+  dependencies:
+    anymatch "^1.3.0"
+    async-each "^1.0.0"
+    glob-parent "^2.0.0"
+    inherits "^2.0.1"
+    is-binary-path "^1.0.0"
+    is-glob "^2.0.0"
+    path-is-absolute "^1.0.0"
+    readdirp "^2.0.0"
+  optionalDependencies:
+    fsevents "^1.0.0"
+
+chownr@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/chownr/-/chownr-1.0.1.tgz#e2a75042a9551908bebd25b8523d5f9769d79181"
+
 ci-info@^1.0.0:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/ci-info/-/ci-info-1.1.3.tgz#710193264bb05c77b8c90d02f5aaf22216a667b2"
@@ -1595,7 +1684,7 @@ conventional-github-releaser@^2.0.2:
     semver-regex "^1.0.0"
     through2 "^2.0.0"
 
-convert-source-map@^1.4.0, convert-source-map@^1.5.0:
+convert-source-map@^1.4.0, convert-source-map@^1.5.0, convert-source-map@^1.5.1:
   version "1.5.1"
   resolved "https://registry.yarnpkg.com/convert-source-map/-/convert-source-map-1.5.1.tgz#b8278097b9bc229365de5c62cf5fcaed8b5599e5"
 
@@ -1624,6 +1713,22 @@ cosmiconfig@^4.0.0:
     parse-json "^4.0.0"
     require-from-string "^2.0.1"
 
+cpx@^1.5.0:
+  version "1.5.0"
+  resolved "https://registry.yarnpkg.com/cpx/-/cpx-1.5.0.tgz#185be018511d87270dedccc293171e37655ab88f"
+  dependencies:
+    babel-runtime "^6.9.2"
+    chokidar "^1.6.0"
+    duplexer "^0.1.1"
+    glob "^7.0.5"
+    glob2base "^0.0.12"
+    minimatch "^3.0.2"
+    mkdirp "^0.5.1"
+    resolve "^1.1.7"
+    safe-buffer "^5.0.1"
+    shell-quote "^1.6.1"
+    subarg "^1.0.0"
+
 cross-env@^5.1.4:
   version "5.1.4"
   resolved "https://registry.yarnpkg.com/cross-env/-/cross-env-5.1.4.tgz#f61c14291f7cc653bb86457002ea80a04699d022"
@@ -1743,7 +1848,7 @@ debug@^0.7.2:
   version "0.7.4"
   resolved "https://registry.yarnpkg.com/debug/-/debug-0.7.4.tgz#06e1ea8082c2cb14e39806e22e2f6f757f92af39"
 
-debug@^2.2.0, debug@^2.3.3, debug@^2.6.8, debug@^2.6.9:
+debug@^2.1.2, debug@^2.2.0, debug@^2.3.3, debug@^2.6.8, debug@^2.6.9:
   version "2.6.9"
   resolved "https://registry.yarnpkg.com/debug/-/debug-2.6.9.tgz#5d128515df134ff327e90a4c93f4e077a536341f"
   dependencies:
@@ -1921,6 +2026,19 @@ duplexer3@^0.1.4:
   version "0.1.4"
   resolved "https://registry.yarnpkg.com/duplexer3/-/duplexer3-0.1.4.tgz#ee01dd1cac0ed3cbc7fdbea37dc0a8f1ce002ce2"
 
+duplexer@^0.1.1:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/duplexer/-/duplexer-0.1.1.tgz#ace6ff808c1ce66b57d1ebf97977acb02334cfc1"
+
+duplexify@^3.6.0:
+  version "3.6.0"
+  resolved "https://registry.yarnpkg.com/duplexify/-/duplexify-3.6.0.tgz#592903f5d80b38d037220541264d69a198fb3410"
+  dependencies:
+    end-of-stream "^1.0.0"
+    inherits "^2.0.1"
+    readable-stream "^2.0.0"
+    stream-shift "^1.0.0"
+
 ecc-jsbn@~0.1.1:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/ecc-jsbn/-/ecc-jsbn-0.1.1.tgz#0fc73a9ed5f0d53c38193398523ef7e543777505"
@@ -1945,6 +2063,12 @@ encoding@^0.1.11:
   dependencies:
     iconv-lite "~0.4.13"
 
+end-of-stream@^1.0.0, end-of-stream@^1.1.0:
+  version "1.4.1"
+  resolved "https://registry.yarnpkg.com/end-of-stream/-/end-of-stream-1.4.1.tgz#ed29634d19baba463b6ce6b80a37213eab71ec43"
+  dependencies:
+    once "^1.4.0"
+
 end-of-stream@~0.1.5:
   version "0.1.5"
   resolved "https://registry.yarnpkg.com/end-of-stream/-/end-of-stream-0.1.5.tgz#8e177206c3c80837d85632e8b9359dfe8b2f6eaf"
@@ -2479,6 +2603,13 @@ flat-cache@^1.2.1:
     graceful-fs "^4.1.2"
     write "^0.2.1"
 
+flush-write-stream@^1.0.2:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/flush-write-stream/-/flush-write-stream-1.0.3.tgz#c5d586ef38af6097650b49bc41b55fabb19f35bd"
+  dependencies:
+    inherits "^2.0.1"
+    readable-stream "^2.0.4"
+
 for-in@^1.0.1, for-in@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/for-in/-/for-in-1.0.2.tgz#81068d295a8142ec0ac726c6e2200c30fb6d5e80"
@@ -2529,6 +2660,14 @@ fs-exists-sync@^0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/fs-exists-sync/-/fs-exists-sync-0.1.0.tgz#982d6893af918e72d08dec9e8673ff2b5a8d6add"
 
+fs-extra@6.0.0:
+  version "6.0.0"
+  resolved "https://registry.yarnpkg.com/fs-extra/-/fs-extra-6.0.0.tgz#0f0afb290bb3deb87978da816fcd3c7797f3a817"
+  dependencies:
+    graceful-fs "^4.1.2"
+    jsonfile "^4.0.0"
+    universalify "^0.1.0"
+
 fs-extra@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/fs-extra/-/fs-extra-1.0.0.tgz#cd3ce5f7e7cb6145883fcae3191e9877f8587950"
@@ -2537,10 +2676,30 @@ fs-extra@^1.0.0:
     jsonfile "^2.1.0"
     klaw "^1.0.0"
 
+fs-minipass@^1.2.5:
+  version "1.2.5"
+  resolved "https://registry.yarnpkg.com/fs-minipass/-/fs-minipass-1.2.5.tgz#06c277218454ec288df77ada54a03b8702aacb9d"
+  dependencies:
+    minipass "^2.2.1"
+
+fs-mkdirp-stream@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/fs-mkdirp-stream/-/fs-mkdirp-stream-1.0.0.tgz#0b7815fc3201c6a69e14db98ce098c16935259eb"
+  dependencies:
+    graceful-fs "^4.1.11"
+    through2 "^2.0.3"
+
 fs.realpath@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/fs.realpath/-/fs.realpath-1.0.0.tgz#1504ad2523158caa40db4a2787cb01411994ea4f"
 
+fsevents@^1.0.0:
+  version "1.2.4"
+  resolved "https://registry.yarnpkg.com/fsevents/-/fsevents-1.2.4.tgz#f41dcb1af2582af3692da36fc55cbd8e1041c426"
+  dependencies:
+    nan "^2.9.2"
+    node-pre-gyp "^0.10.0"
+
 fsevents@^1.1.1:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/fsevents/-/fsevents-1.1.3.tgz#11f82318f5fe7bb2cd22965a108e9306208216d8"
@@ -2682,6 +2841,13 @@ glob-parent@^2.0.0:
   dependencies:
     is-glob "^2.0.0"
 
+glob-parent@^3.1.0:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/glob-parent/-/glob-parent-3.1.0.tgz#9e6af6299d8d3bd2bd40430832bd113df906c5ae"
+  dependencies:
+    is-glob "^3.1.0"
+    path-dirname "^1.0.0"
+
 glob-stream@^3.1.5:
   version "3.1.18"
   resolved "https://registry.yarnpkg.com/glob-stream/-/glob-stream-3.1.18.tgz#9170a5f12b790306fdfe598f313f8f7954fd143b"
@@ -2693,6 +2859,21 @@ glob-stream@^3.1.5:
     through2 "^0.6.1"
     unique-stream "^1.0.0"
 
+glob-stream@^6.1.0:
+  version "6.1.0"
+  resolved "https://registry.yarnpkg.com/glob-stream/-/glob-stream-6.1.0.tgz#7045c99413b3eb94888d83ab46d0b404cc7bdde4"
+  dependencies:
+    extend "^3.0.0"
+    glob "^7.1.1"
+    glob-parent "^3.1.0"
+    is-negated-glob "^1.0.0"
+    ordered-read-streams "^1.0.0"
+    pumpify "^1.3.5"
+    readable-stream "^2.1.5"
+    remove-trailing-separator "^1.0.1"
+    to-absolute-glob "^2.0.0"
+    unique-stream "^2.0.2"
+
 glob-watcher@^0.0.6:
   version "0.0.6"
   resolved "https://registry.yarnpkg.com/glob-watcher/-/glob-watcher-0.0.6.tgz#b95b4a8df74b39c83298b0c05c978b4d9a3b710b"
@@ -2842,7 +3023,7 @@ graceful-fs@^3.0.0:
   dependencies:
     natives "^1.1.0"
 
-graceful-fs@^4.1.11, graceful-fs@^4.1.2, graceful-fs@^4.1.3, graceful-fs@^4.1.6, graceful-fs@^4.1.9:
+graceful-fs@^4.0.0, graceful-fs@^4.1.11, graceful-fs@^4.1.2, graceful-fs@^4.1.3, graceful-fs@^4.1.6, graceful-fs@^4.1.9:
   version "4.1.11"
   resolved "https://registry.yarnpkg.com/graceful-fs/-/graceful-fs-4.1.11.tgz#0e8bdfe4d1ddb8854d64e04ea7c00e2a026e5658"
 
@@ -2889,6 +3070,17 @@ gulp-git@^2.5.2:
     through2 "^2.0.3"
     vinyl "^2.0.1"
 
+gulp-typescript@^4.0.2:
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/gulp-typescript/-/gulp-typescript-4.0.2.tgz#80bb9e376e7aa87b763a6ad5fe054a5d078da1e6"
+  dependencies:
+    ansi-colors "^1.0.1"
+    plugin-error "^0.1.2"
+    source-map "^0.6.1"
+    through2 "^2.0.3"
+    vinyl "^2.1.0"
+    vinyl-fs "^3.0.0"
+
 gulp-util@^3.0.0:
   version "3.0.8"
   resolved "https://registry.yarnpkg.com/gulp-util/-/gulp-util-3.0.8.tgz#0054e1e744502e27c04c187c3ecc505dd54bbb4f"
@@ -2992,6 +3184,10 @@ has-symbol-support-x@^1.4.1:
   version "1.4.2"
   resolved "https://registry.yarnpkg.com/has-symbol-support-x/-/has-symbol-support-x-1.4.2.tgz#1409f98bc00247da45da67cee0a36f282ff26455"
 
+has-symbols@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/has-symbols/-/has-symbols-1.0.0.tgz#ba1a8f1af2a0fc39650f5c850367704122063b44"
+
 has-to-string-tag-x@^1.2.0:
   version "1.4.1"
   resolved "https://registry.yarnpkg.com/has-to-string-tag-x/-/has-to-string-tag-x-1.4.1.tgz#a045ab383d7b4b2012a00148ab0aa5f290044d4d"
@@ -3123,6 +3319,18 @@ iconv-lite@^0.4.17, iconv-lite@~0.4.13:
   dependencies:
     safer-buffer "^2.1.0"
 
+iconv-lite@^0.4.4:
+  version "0.4.23"
+  resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.23.tgz#297871f63be507adcfbfca715d0cd0eed84e9a63"
+  dependencies:
+    safer-buffer ">= 2.1.2 < 3"
+
+ignore-walk@^3.0.1:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/ignore-walk/-/ignore-walk-3.0.1.tgz#a83e62e7d272ac0e3b551aaa82831a19b69f82f8"
+  dependencies:
+    minimatch "^3.0.4"
+
 ignore@^3.3.3:
   version "3.3.7"
   resolved "https://registry.yarnpkg.com/ignore/-/ignore-3.3.7.tgz#612289bfb3c220e186a58118618d5be8c1bab021"
@@ -3263,6 +3471,12 @@ is-arrayish@^0.2.1:
   version "0.2.1"
   resolved "https://registry.yarnpkg.com/is-arrayish/-/is-arrayish-0.2.1.tgz#77c99840527aa8ecb1a8ba697b80645a7a926a9d"
 
+is-binary-path@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/is-binary-path/-/is-binary-path-1.0.1.tgz#75f16642b480f187a711c814161fd3a4a7655898"
+  dependencies:
+    binary-extensions "^1.0.0"
+
 is-buffer@^1.1.5:
   version "1.1.6"
   resolved "https://registry.yarnpkg.com/is-buffer/-/is-buffer-1.1.6.tgz#efaa2ea9daa0d7ab2ea13a97b2b8ad51fefbe8be"
@@ -3389,6 +3603,10 @@ is-glob@^4.0.0:
   dependencies:
     is-extglob "^2.1.1"
 
+is-negated-glob@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/is-negated-glob/-/is-negated-glob-1.0.0.tgz#6910bca5da8c95e784b5751b976cf5a10fee36d2"
+
 is-number@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/is-number/-/is-number-2.1.0.tgz#01fcbbb393463a548f2f466cce16dece49db908f"
@@ -3519,6 +3737,10 @@ is-utf8@^0.2.0, is-utf8@^0.2.1:
   version "0.2.1"
   resolved "https://registry.yarnpkg.com/is-utf8/-/is-utf8-0.2.1.tgz#4b0da1442104d1b336340e80797e865cf39f7d72"
 
+is-valid-glob@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/is-valid-glob/-/is-valid-glob-1.0.0.tgz#29bf3eff701be2d4d315dbacc39bc39fe8f601aa"
+
 is-windows@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/is-windows/-/is-windows-0.2.0.tgz#de1aa6d63ea29dd248737b69f1ff8b8002d2108c"
@@ -3970,7 +4192,7 @@ json-stable-stringify-without-jsonify@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/json-stable-stringify-without-jsonify/-/json-stable-stringify-without-jsonify-1.0.1.tgz#9db7b59496ad3f3cfef30a75142d2d930ad72651"
 
-json-stable-stringify@^1.0.1:
+json-stable-stringify@^1.0.0, json-stable-stringify@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/json-stable-stringify/-/json-stable-stringify-1.0.1.tgz#9a759d39c5f2ff503fd5300646ed445f88c4f9af"
   dependencies:
@@ -3990,6 +4212,12 @@ jsonfile@^2.1.0:
   optionalDependencies:
     graceful-fs "^4.1.6"
 
+jsonfile@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/jsonfile/-/jsonfile-4.0.0.tgz#8771aae0799b64076b76640fca058f9c10e33ecb"
+  optionalDependencies:
+    graceful-fs "^4.1.6"
+
 jsonify@~0.0.0:
   version "0.0.0"
   resolved "https://registry.yarnpkg.com/jsonify/-/jsonify-0.0.0.tgz#2c74b6ee41d93ca51b7b5aaee8f503631d252a73"
@@ -4047,12 +4275,24 @@ lazy-cache@^1.0.3:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/lazy-cache/-/lazy-cache-1.0.4.tgz#a1d78fc3a50474cb80845d3b3b6e1da49a446e8e"
 
+lazystream@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/lazystream/-/lazystream-1.0.0.tgz#f6995fe0f820392f61396be89462407bb77168e4"
+  dependencies:
+    readable-stream "^2.0.5"
+
 lcid@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/lcid/-/lcid-1.0.0.tgz#308accafa0bc483a3867b4b6f2b9506251d1b835"
   dependencies:
     invert-kv "^1.0.0"
 
+lead@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/lead/-/lead-1.0.0.tgz#6f14f99a37be3a9dd784f5495690e5903466ee42"
+  dependencies:
+    flush-write-stream "^1.0.2"
+
 left-pad@^1.2.0:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/left-pad/-/left-pad-1.3.0.tgz#5b8a3a7765dfe001261dde915589e782f8c94d1e"
@@ -4347,7 +4587,7 @@ lodash@^4.13.1, lodash@^4.14.0, lodash@^4.17.4, lodash@^4.3.0:
   version "4.17.5"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.5.tgz#99a92d65c0272debe8c96b6057bc8fbfa3bed511"
 
-lodash@^4.17.5, lodash@^4.2.1, lodash@^4.5.1:
+lodash@^4.17.10, lodash@^4.17.5, lodash@^4.2.1, lodash@^4.5.1:
   version "4.17.10"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.10.tgz#1b7793cf7259ea38fb3661d4d38b3260af8ae4e7"
 
@@ -4489,7 +4729,7 @@ merge@^1.1.3, merge@^1.2.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/merge/-/merge-1.2.0.tgz#7531e39d4949c281a66b8c5a6e0265e8b05894da"
 
-micromatch@^2.3.11, micromatch@^2.3.7:
+micromatch@^2.1.5, micromatch@^2.3.11, micromatch@^2.3.7:
   version "2.3.11"
   resolved "https://registry.yarnpkg.com/micromatch/-/micromatch-2.3.11.tgz#86677c97d1720b363431d04d0d15293bd38c1565"
   dependencies:
@@ -4581,6 +4821,19 @@ minimist@~0.0.1:
   version "0.0.10"
   resolved "https://registry.yarnpkg.com/minimist/-/minimist-0.0.10.tgz#de3f98543dbf96082be48ad1a0c7cda836301dcf"
 
+minipass@^2.2.1, minipass@^2.3.3:
+  version "2.3.3"
+  resolved "https://registry.yarnpkg.com/minipass/-/minipass-2.3.3.tgz#a7dcc8b7b833f5d368759cce544dccb55f50f233"
+  dependencies:
+    safe-buffer "^5.1.2"
+    yallist "^3.0.0"
+
+minizlib@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/minizlib/-/minizlib-1.1.0.tgz#11e13658ce46bc3a70a267aac58359d1e0c29ceb"
+  dependencies:
+    minipass "^2.2.1"
+
 mixin-deep@^1.2.0:
   version "1.3.1"
   resolved "https://registry.yarnpkg.com/mixin-deep/-/mixin-deep-1.3.1.tgz#a49e7268dce1a0d9698e45326c5626df3543d0fe"
@@ -4628,7 +4881,7 @@ mz@^2.5.0, mz@^2.6.0, mz@^2.7.0:
     object-assign "^4.0.1"
     thenify-all "^1.0.0"
 
-nan@^2.3.0:
+nan@^2.3.0, nan@^2.9.2:
   version "2.10.0"
   resolved "https://registry.yarnpkg.com/nan/-/nan-2.10.0.tgz#96d0cd610ebd58d4b4de9cc0c6828cda99c7548f"
 
@@ -4657,6 +4910,14 @@ natural-compare@^1.4.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/natural-compare/-/natural-compare-1.4.0.tgz#4abebfeed7541f2c27acfb29bdbbd15c8d5ba4f7"
 
+needle@^2.2.0:
+  version "2.2.1"
+  resolved "https://registry.yarnpkg.com/needle/-/needle-2.2.1.tgz#b5e325bd3aae8c2678902fa296f729455d1d3a7d"
+  dependencies:
+    debug "^2.1.2"
+    iconv-lite "^0.4.4"
+    sax "^1.2.4"
+
 node-fetch@^1.0.1:
   version "1.7.3"
   resolved "https://registry.yarnpkg.com/node-fetch/-/node-fetch-1.7.3.tgz#980f6f72d85211a5347c6b2bc18c5b84c3eb47ef"
@@ -4681,6 +4942,21 @@ node-notifier@^5.2.1:
     shellwords "^0.1.1"
     which "^1.3.0"
 
+node-pre-gyp@^0.10.0:
+  version "0.10.0"
+  resolved "https://registry.yarnpkg.com/node-pre-gyp/-/node-pre-gyp-0.10.0.tgz#6e4ef5bb5c5203c6552448828c852c40111aac46"
+  dependencies:
+    detect-libc "^1.0.2"
+    mkdirp "^0.5.1"
+    needle "^2.2.0"
+    nopt "^4.0.1"
+    npm-packlist "^1.1.6"
+    npmlog "^4.0.2"
+    rc "^1.1.7"
+    rimraf "^2.6.1"
+    semver "^5.3.0"
+    tar "^4"
+
 node-pre-gyp@^0.6.39:
   version "0.6.39"
   resolved "https://registry.yarnpkg.com/node-pre-gyp/-/node-pre-gyp-0.6.39.tgz#c00e96860b23c0e1420ac7befc5044e1d78d8649"
@@ -4713,12 +4989,29 @@ normalize-package-data@^2.3.0, normalize-package-data@^2.3.2, normalize-package-
     semver "2 || 3 || 4 || 5"
     validate-npm-package-license "^3.0.1"
 
-normalize-path@^2.0.1, normalize-path@^2.1.1:
+normalize-path@^2.0.0, normalize-path@^2.0.1, normalize-path@^2.1.1:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/normalize-path/-/normalize-path-2.1.1.tgz#1ab28b556e198363a8c1a6f7e6fa20137fe6aed9"
   dependencies:
     remove-trailing-separator "^1.0.1"
 
+now-and-later@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/now-and-later/-/now-and-later-2.0.0.tgz#bc61cbb456d79cb32207ce47ca05136ff2e7d6ee"
+  dependencies:
+    once "^1.3.2"
+
+npm-bundled@^1.0.1:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/npm-bundled/-/npm-bundled-1.0.3.tgz#7e71703d973af3370a9591bafe3a63aca0be2308"
+
+npm-packlist@^1.1.6:
+  version "1.1.10"
+  resolved "https://registry.yarnpkg.com/npm-packlist/-/npm-packlist-1.1.10.tgz#1039db9e985727e464df066f4cf0ab6ef85c398a"
+  dependencies:
+    ignore-walk "^3.0.1"
+    npm-bundled "^1.0.1"
+
 npm-path@^2.0.2:
   version "2.0.4"
   resolved "https://registry.yarnpkg.com/npm-path/-/npm-path-2.0.4.tgz#c641347a5ff9d6a09e4d9bce5580c4f505278e64"
@@ -4776,7 +5069,7 @@ object-copy@^0.1.0:
     define-property "^0.2.5"
     kind-of "^3.0.3"
 
-object-keys@^1.0.8:
+object-keys@^1.0.11, object-keys@^1.0.8:
   version "1.0.11"
   resolved "https://registry.yarnpkg.com/object-keys/-/object-keys-1.0.11.tgz#c54601778ad560f1142ce0e01bcca8b56d13426d"
 
@@ -4786,6 +5079,15 @@ object-visit@^1.0.0:
   dependencies:
     isobject "^3.0.0"
 
+object.assign@^4.0.4:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/object.assign/-/object.assign-4.1.0.tgz#968bf1100d7956bb3ca086f006f846b3bc4008da"
+  dependencies:
+    define-properties "^1.1.2"
+    function-bind "^1.1.1"
+    has-symbols "^1.0.0"
+    object-keys "^1.0.11"
+
 object.defaults@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/object.defaults/-/object.defaults-1.1.0.tgz#3a7f868334b407dea06da16d88d5cd29e435fecf"
@@ -4822,7 +5124,7 @@ object.pick@^1.2.0, object.pick@^1.3.0:
   dependencies:
     isobject "^3.0.1"
 
-once@^1.3.0, once@^1.3.3, once@^1.4.0:
+once@^1.3.0, once@^1.3.1, once@^1.3.2, once@^1.3.3, once@^1.4.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/once/-/once-1.4.0.tgz#583b1aa775961d4b113ac17d9c50baef9dd76bd1"
   dependencies:
@@ -4883,6 +5185,12 @@ ordered-read-streams@^0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/ordered-read-streams/-/ordered-read-streams-0.1.0.tgz#fd565a9af8eb4473ba69b6ed8a34352cb552f126"
 
+ordered-read-streams@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/ordered-read-streams/-/ordered-read-streams-1.0.1.tgz#77c0cb37c41525d64166d990ffad7ec6a0e1363e"
+  dependencies:
+    readable-stream "^2.0.1"
+
 os-homedir@^1.0.0, os-homedir@^1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/os-homedir/-/os-homedir-1.0.2.tgz#ffbc4988336e0e833de0c168c7ef152121aa7fb3"
@@ -4996,6 +5304,10 @@ pascalcase@^0.1.1:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/pascalcase/-/pascalcase-0.1.1.tgz#b363e55e8006ca6fe21784d2db22bd15d7917f14"
 
+path-dirname@^1.0.0:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/path-dirname/-/path-dirname-1.0.2.tgz#cc33d24d525e099a5388c0336c6e32b9160609e0"
+
 path-exists@2.1.0, path-exists@^2.0.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/path-exists/-/path-exists-2.1.0.tgz#0feb6c64f0fc518d9a754dd5efb62c7022761f4b"
@@ -5161,7 +5473,7 @@ pretty-hrtime@^1.0.0:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/pretty-hrtime/-/pretty-hrtime-1.0.3.tgz#b7e3ea42435a4c9b2759d99e0f201eb195802ee1"
 
-private@^0.1.6, private@^0.1.7:
+private@^0.1.6, private@^0.1.7, private@^0.1.8:
   version "0.1.8"
   resolved "https://registry.yarnpkg.com/private/-/private-0.1.8.tgz#2381edb3689f7a53d653190060fcf822d2f368ff"
 
@@ -5191,6 +5503,21 @@ pseudomap@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/pseudomap/-/pseudomap-1.0.2.tgz#f052a28da70e618917ef0a8ac34c1ae5a68286b3"
 
+pump@^2.0.0:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/pump/-/pump-2.0.1.tgz#12399add6e4cf7526d973cbc8b5ce2e2908b3909"
+  dependencies:
+    end-of-stream "^1.1.0"
+    once "^1.3.1"
+
+pumpify@^1.3.5:
+  version "1.5.1"
+  resolved "https://registry.yarnpkg.com/pumpify/-/pumpify-1.5.1.tgz#36513be246ab27570b1a374a5ce278bfd74370ce"
+  dependencies:
+    duplexify "^3.6.0"
+    inherits "^2.0.3"
+    pump "^2.0.0"
+
 punycode@^1.4.1:
   version "1.4.1"
   resolved "https://registry.yarnpkg.com/punycode/-/punycode-1.4.1.tgz#c0d5a63b2718800ad8e1eb0fa5269c84dd41845e"
@@ -5298,7 +5625,7 @@ readable-stream@^1.1.7, readable-stream@~1.1.9:
     isarray "0.0.1"
     string_decoder "~0.10.x"
 
-readable-stream@^2.0.1, readable-stream@^2.0.2, readable-stream@^2.0.6, readable-stream@^2.1.4, readable-stream@^2.1.5, readable-stream@^2.2.2, readable-stream@^2.3.5:
+readable-stream@^2.0.0, readable-stream@^2.0.1, readable-stream@^2.0.2, readable-stream@^2.0.4, readable-stream@^2.0.5, readable-stream@^2.0.6, readable-stream@^2.1.4, readable-stream@^2.1.5, readable-stream@^2.2.2, readable-stream@^2.3.3, readable-stream@^2.3.5:
   version "2.3.6"
   resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-2.3.6.tgz#b11c27d88b8ff1fbe070643cf94b0c79ae1b0aaf"
   dependencies:
@@ -5310,6 +5637,15 @@ readable-stream@^2.0.1, readable-stream@^2.0.2, readable-stream@^2.0.6, readable
     string_decoder "~1.1.1"
     util-deprecate "~1.0.1"
 
+readdirp@^2.0.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/readdirp/-/readdirp-2.1.0.tgz#4ed0ad060df3073300c48440373f72d1cc642d78"
+  dependencies:
+    graceful-fs "^4.1.2"
+    minimatch "^3.0.2"
+    readable-stream "^2.0.2"
+    set-immediate-shim "^1.0.1"
+
 readline2@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/readline2/-/readline2-1.0.1.tgz#41059608ffc154757b715d9989d199ffbf372e35"
@@ -5399,6 +5735,21 @@ regjsparser@^0.1.4:
   dependencies:
     jsesc "~0.5.0"
 
+remove-bom-buffer@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/remove-bom-buffer/-/remove-bom-buffer-3.0.0.tgz#c2bf1e377520d324f623892e33c10cac2c252b53"
+  dependencies:
+    is-buffer "^1.1.5"
+    is-utf8 "^0.2.1"
+
+remove-bom-stream@^1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/remove-bom-stream/-/remove-bom-stream-1.2.0.tgz#05f1a593f16e42e1fb90ebf59de8e569525f9523"
+  dependencies:
+    remove-bom-buffer "^3.0.0"
+    safe-buffer "^5.1.0"
+    through2 "^2.0.3"
+
 remove-trailing-separator@^1.0.1:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/remove-trailing-separator/-/remove-trailing-separator-1.1.0.tgz#c24bce2a283adad5bc3f58e0d48249b92379d8ef"
@@ -5554,6 +5905,12 @@ resolve-global@^0.1.0:
   dependencies:
     global-dirs "^0.1.0"
 
+resolve-options@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/resolve-options/-/resolve-options-1.1.0.tgz#32bb9e39c06d67338dc9378c0d6d6074566ad131"
+  dependencies:
+    value-or-function "^3.0.0"
+
 resolve-url@^0.2.1:
   version "0.2.1"
   resolved "https://registry.yarnpkg.com/resolve-url/-/resolve-url-0.2.1.tgz#2c637fe77c893afd2a663fe21aa9080068e2052a"
@@ -5660,13 +6017,17 @@ safe-buffer@^5.0.1, safe-buffer@^5.1.1, safe-buffer@~5.1.0, safe-buffer@~5.1.1:
   version "5.1.1"
   resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.1.1.tgz#893312af69b2123def71f57889001671eeb2c853"
 
+safe-buffer@^5.1.0, safe-buffer@^5.1.2:
+  version "5.1.2"
+  resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.1.2.tgz#991ec69d296e0313747d59bdfd2b745c35f8828d"
+
 safe-regex@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/safe-regex/-/safe-regex-1.1.0.tgz#40a3669f3b077d1e943d44629e157dd48023bf2e"
   dependencies:
     ret "~0.1.10"
 
-safer-buffer@^2.1.0:
+"safer-buffer@>= 2.1.2 < 3", safer-buffer@^2.1.0:
   version "2.1.2"
   resolved "https://registry.yarnpkg.com/safer-buffer/-/safer-buffer-2.1.2.tgz#44fa161b0187b9549dd84bb91802f9bd8385cd6a"
 
@@ -5712,6 +6073,10 @@ set-blocking@^2.0.0, set-blocking@~2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/set-blocking/-/set-blocking-2.0.0.tgz#045f9782d011ae9a6803ddd382b24392b3d890f7"
 
+set-immediate-shim@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/set-immediate-shim/-/set-immediate-shim-1.0.1.tgz#4b2b1b27eb808a9f8dcc481a58e5e56f599f3f61"
+
 set-value@^0.4.3:
   version "0.4.3"
   resolved "https://registry.yarnpkg.com/set-value/-/set-value-0.4.3.tgz#7db08f9d3d22dc7f78e53af3c3bf4666ecdfccf1"
@@ -5744,6 +6109,15 @@ shebang-regex@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/shebang-regex/-/shebang-regex-1.0.0.tgz#da42f49740c0b42db2ca9728571cb190c98efea3"
 
+shell-quote@^1.6.1:
+  version "1.6.1"
+  resolved "https://registry.yarnpkg.com/shell-quote/-/shell-quote-1.6.1.tgz#f4781949cce402697127430ea3b3c5476f481767"
+  dependencies:
+    array-filter "~0.0.0"
+    array-map "~0.0.0"
+    array-reduce "~0.0.0"
+    jsonify "~0.0.0"
+
 shelljs@0.7.6:
   version "0.7.6"
   resolved "https://registry.yarnpkg.com/shelljs/-/shelljs-0.7.6.tgz#379cccfb56b91c8601e4793356eb5382924de9ad"
@@ -5843,6 +6217,13 @@ source-map-support@^0.5.0:
   dependencies:
     source-map "^0.6.0"
 
+source-map-support@^0.5.5:
+  version "0.5.6"
+  resolved "https://registry.yarnpkg.com/source-map-support/-/source-map-support-0.5.6.tgz#4435cee46b1aab62b8e8610ce60f788091c51c13"
+  dependencies:
+    buffer-from "^1.0.0"
+    source-map "^0.6.0"
+
 source-map-url@^0.4.0:
   version "0.4.0"
   resolved "https://registry.yarnpkg.com/source-map-url/-/source-map-url-0.4.0.tgz#3e935d7ddd73631b97659956d55128e87b5084a3"
@@ -5953,6 +6334,10 @@ stream-consume@~0.1.0:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/stream-consume/-/stream-consume-0.1.1.tgz#d3bdb598c2bd0ae82b8cac7ac50b1107a7996c48"
 
+stream-shift@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/stream-shift/-/stream-shift-1.0.0.tgz#d5c752825e5367e786f78e18e445ea223a155952"
+
 stream-to-observable@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/stream-to-observable/-/stream-to-observable-0.2.0.tgz#59d6ea393d87c2c0ddac10aa0d561bc6ba6f0e10"
@@ -6152,6 +6537,12 @@ stryker@^0.22.4:
     tslib "^1.5.0"
     typed-rest-client "^1.0.7"
 
+subarg@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/subarg/-/subarg-1.0.0.tgz#f62cf17581e996b48fc965699f54c06ae268b8d2"
+  dependencies:
+    minimist "^1.1.0"
+
 supports-color@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-2.0.0.tgz#535d045ce6b6363fa40117084629995e9df324c7"
@@ -6222,6 +6613,18 @@ tar@^2.2.1:
     fstream "^1.0.2"
     inherits "2"
 
+tar@^4:
+  version "4.4.4"
+  resolved "https://registry.yarnpkg.com/tar/-/tar-4.4.4.tgz#ec8409fae9f665a4355cc3b4087d0820232bb8cd"
+  dependencies:
+    chownr "^1.0.1"
+    fs-minipass "^1.2.5"
+    minipass "^2.3.3"
+    minizlib "^1.1.0"
+    mkdirp "^0.5.0"
+    safe-buffer "^5.1.2"
+    yallist "^3.0.2"
+
 temp-dir@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/temp-dir/-/temp-dir-1.0.0.tgz#0a7c0ea26d3a39afa7e0ebea9c1fc0bc4daa011d"
@@ -6267,6 +6670,13 @@ throat@^4.0.0, throat@^4.1.0:
   version "4.1.0"
   resolved "https://registry.yarnpkg.com/throat/-/throat-4.1.0.tgz#89037cbc92c56ab18926e6ba4cbb200e15672a6a"
 
+through2-filter@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/through2-filter/-/through2-filter-2.0.0.tgz#60bc55a0dacb76085db1f9dae99ab43f83d622ec"
+  dependencies:
+    through2 "~2.0.0"
+    xtend "~4.0.0"
+
 through2@^0.6.1:
   version "0.6.5"
   resolved "https://registry.yarnpkg.com/through2/-/through2-0.6.5.tgz#41ab9c67b29d57209071410e1d7a7a968cd3ad48"
@@ -6274,7 +6684,7 @@ through2@^0.6.1:
     readable-stream ">=1.0.33-1 <1.1.0-0"
     xtend ">=4.0.0 <4.1.0-0"
 
-through2@^2.0.0, through2@^2.0.1, through2@^2.0.2, through2@^2.0.3:
+through2@^2.0.0, through2@^2.0.1, through2@^2.0.2, through2@^2.0.3, through2@~2.0.0:
   version "2.0.3"
   resolved "https://registry.yarnpkg.com/through2/-/through2-2.0.3.tgz#0004569b37c7c74ba39c43f3ced78d1ad94140be"
   dependencies:
@@ -6315,6 +6725,13 @@ tmpl@1.0.x:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/tmpl/-/tmpl-1.0.4.tgz#23640dd7b42d00433911140820e5cf440e521dd1"
 
+to-absolute-glob@^2.0.0:
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/to-absolute-glob/-/to-absolute-glob-2.0.2.tgz#1865f43d9e74b0822db9f145b78cff7d0f7c849b"
+  dependencies:
+    is-absolute "^1.0.0"
+    is-negated-glob "^1.0.0"
+
 to-fast-properties@^1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/to-fast-properties/-/to-fast-properties-1.0.3.tgz#b83571fa4d8c25b82e231b06e3a3055de4ca1a47"
@@ -6341,6 +6758,12 @@ to-regex@^3.0.1, to-regex@^3.0.2:
     regex-not "^1.0.2"
     safe-regex "^1.1.0"
 
+to-through@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/to-through/-/to-through-2.0.0.tgz#fc92adaba072647bc0b67d6b03664aa195093af6"
+  dependencies:
+    through2 "^2.0.3"
+
 tough-cookie@>=2.3.3, tough-cookie@^2.3.3, tough-cookie@~2.3.0, tough-cookie@~2.3.3:
   version "2.3.4"
   resolved "https://registry.yarnpkg.com/tough-cookie/-/tough-cookie-2.3.4.tgz#ec60cee38ac675063ffc97a5c18970578ee83655"
@@ -6369,6 +6792,22 @@ trim-right@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/trim-right/-/trim-right-1.0.1.tgz#cb2e1203067e0c8de1f614094b9fe45704ea6003"
 
+ts-jest@^22.4.6:
+  version "22.4.6"
+  resolved "https://registry.yarnpkg.com/ts-jest/-/ts-jest-22.4.6.tgz#a5d7f5e8b809626d1f4143209d301287472ec344"
+  dependencies:
+    babel-core "^6.26.3"
+    babel-plugin-istanbul "^4.1.6"
+    babel-plugin-transform-es2015-modules-commonjs "^6.26.2"
+    babel-preset-jest "^22.4.3"
+    cpx "^1.5.0"
+    fs-extra "6.0.0"
+    jest-config "^22.4.3"
+    lodash "^4.17.10"
+    pkg-dir "^2.0.0"
+    source-map-support "^0.5.5"
+    yargs "^11.0.0"
+
 tslib@^1.5.0, tslib@^1.6.0, tslib@^1.8.0:
   version "1.9.0"
   resolved "https://registry.yarnpkg.com/tslib/-/tslib-1.9.0.tgz#e37a86fda8cbbaf23a057f473c9f4dc64e5fc2e8"
@@ -6408,6 +6847,10 @@ typedarray@^0.0.6:
   version "0.0.6"
   resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
 
+typescript@^2.9.1:
+  version "2.9.1"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-2.9.1.tgz#fdb19d2c67a15d11995fd15640e373e09ab09961"
+
 ua-parser-js@^0.7.9:
   version "0.7.17"
   resolved "https://registry.yarnpkg.com/ua-parser-js/-/ua-parser-js-0.7.17.tgz#e9ec5f9498b9ec910e7ae3ac626a805c4d09ecac"
@@ -6450,12 +6893,23 @@ unique-stream@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/unique-stream/-/unique-stream-1.0.0.tgz#d59a4a75427447d9aa6c91e70263f8d26a4b104b"
 
+unique-stream@^2.0.2:
+  version "2.2.1"
+  resolved "https://registry.yarnpkg.com/unique-stream/-/unique-stream-2.2.1.tgz#5aa003cfbe94c5ff866c4e7d668bb1c4dbadb369"
+  dependencies:
+    json-stable-stringify "^1.0.0"
+    through2-filter "^2.0.0"
+
 unique-string@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/unique-string/-/unique-string-1.0.0.tgz#9e1057cca851abb93398f8b33ae187b99caec11a"
   dependencies:
     crypto-random-string "^1.0.0"
 
+universalify@^0.1.0:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/universalify/-/universalify-0.1.1.tgz#fa71badd4437af4c148841e3b3b165f9e9e590b7"
+
 unset-value@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/unset-value/-/unset-value-1.0.0.tgz#8376873f7d2335179ffb1e6fc3a8ed0dfc8ab559"
@@ -6515,6 +6969,10 @@ validate-npm-package-license@^3.0.1:
     spdx-correct "^3.0.0"
     spdx-expression-parse "^3.0.0"
 
+value-or-function@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/value-or-function/-/value-or-function-3.0.0.tgz#1c243a50b595c1be54a754bfece8563b9ff8d813"
+
 verror@1.10.0:
   version "1.10.0"
   resolved "https://registry.yarnpkg.com/verror/-/verror-1.10.0.tgz#3a105ca17053af55d6e270c1f8288682e18da400"
@@ -6536,6 +6994,40 @@ vinyl-fs@^0.3.0:
     through2 "^0.6.1"
     vinyl "^0.4.0"
 
+vinyl-fs@^3.0.0:
+  version "3.0.3"
+  resolved "https://registry.yarnpkg.com/vinyl-fs/-/vinyl-fs-3.0.3.tgz#c85849405f67428feabbbd5c5dbdd64f47d31bc7"
+  dependencies:
+    fs-mkdirp-stream "^1.0.0"
+    glob-stream "^6.1.0"
+    graceful-fs "^4.0.0"
+    is-valid-glob "^1.0.0"
+    lazystream "^1.0.0"
+    lead "^1.0.0"
+    object.assign "^4.0.4"
+    pumpify "^1.3.5"
+    readable-stream "^2.3.3"
+    remove-bom-buffer "^3.0.0"
+    remove-bom-stream "^1.2.0"
+    resolve-options "^1.1.0"
+    through2 "^2.0.0"
+    to-through "^2.0.0"
+    value-or-function "^3.0.0"
+    vinyl "^2.0.0"
+    vinyl-sourcemap "^1.1.0"
+
+vinyl-sourcemap@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/vinyl-sourcemap/-/vinyl-sourcemap-1.1.0.tgz#92a800593a38703a8cdb11d8b300ad4be63b3e16"
+  dependencies:
+    append-buffer "^1.0.2"
+    convert-source-map "^1.5.0"
+    graceful-fs "^4.1.6"
+    normalize-path "^2.1.1"
+    now-and-later "^2.0.0"
+    remove-bom-buffer "^3.0.0"
+    vinyl "^2.0.0"
+
 vinyl@^0.4.0:
   version "0.4.6"
   resolved "https://registry.yarnpkg.com/vinyl/-/vinyl-0.4.6.tgz#2f356c87a550a255461f36bbeb2a5ba8bf784847"
@@ -6551,7 +7043,7 @@ vinyl@^0.5.0:
     clone-stats "^0.0.1"
     replace-ext "0.0.1"
 
-vinyl@^2.0.1:
+vinyl@^2.0.0, vinyl@^2.0.1, vinyl@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/vinyl/-/vinyl-2.1.0.tgz#021f9c2cf951d6b939943c89eb5ee5add4fd924c"
   dependencies:
@@ -6694,7 +7186,7 @@ xml-name-validator@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/xml-name-validator/-/xml-name-validator-3.0.0.tgz#6ae73e06de4d8c6e47f9fb181f78d648ad457c6a"
 
-"xtend@>=4.0.0 <4.1.0-0", xtend@^4.0.1, xtend@~4.0.1:
+"xtend@>=4.0.0 <4.1.0-0", xtend@^4.0.1, xtend@~4.0.0, xtend@~4.0.1:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/xtend/-/xtend-4.0.1.tgz#a5c6d532be656e23db820efb943a1f04998d63af"
 
@@ -6706,12 +7198,22 @@ yallist@^2.1.2:
   version "2.1.2"
   resolved "https://registry.yarnpkg.com/yallist/-/yallist-2.1.2.tgz#1c11f9218f076089a47dd512f93c6699a6a81d52"
 
+yallist@^3.0.0, yallist@^3.0.2:
+  version "3.0.2"
+  resolved "https://registry.yarnpkg.com/yallist/-/yallist-3.0.2.tgz#8452b4bb7e83c7c188d8041c1a837c773d6d8bb9"
+
 yargs-parser@^8.1.0:
   version "8.1.0"
   resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-8.1.0.tgz#f1376a33b6629a5d063782944da732631e966950"
   dependencies:
     camelcase "^4.1.0"
 
+yargs-parser@^9.0.2:
+  version "9.0.2"
+  resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-9.0.2.tgz#9ccf6a43460fe4ed40a9bb68f48d43b8a68cc077"
+  dependencies:
+    camelcase "^4.1.0"
+
 yargs@^10.0.3:
   version "10.1.2"
   resolved "https://registry.yarnpkg.com/yargs/-/yargs-10.1.2.tgz#454d074c2b16a51a43e2fb7807e4f9de69ccb5c5"
@@ -6729,6 +7231,23 @@ yargs@^10.0.3:
     y18n "^3.2.1"
     yargs-parser "^8.1.0"
 
+yargs@^11.0.0:
+  version "11.0.0"
+  resolved "https://registry.yarnpkg.com/yargs/-/yargs-11.0.0.tgz#c052931006c5eee74610e5fc0354bedfd08a201b"
+  dependencies:
+    cliui "^4.0.0"
+    decamelize "^1.1.1"
+    find-up "^2.1.0"
+    get-caller-file "^1.0.1"
+    os-locale "^2.0.0"
+    require-directory "^2.1.1"
+    require-main-filename "^1.0.1"
+    set-blocking "^2.0.0"
+    string-width "^2.0.0"
+    which-module "^2.0.0"
+    y18n "^3.2.1"
+    yargs-parser "^9.0.2"
+
 yargs@~3.10.0:
   version "3.10.0"
   resolved "https://registry.yarnpkg.com/yargs/-/yargs-3.10.0.tgz#f7ee7bd857dd7c1d2d38c0e74efbd681d1431fd1"