diff --git a/package.json b/package.json
index 1aa0ae9a..2a7f3c7e 100644
--- a/package.json
+++ b/package.json
@@ -80,10 +80,10 @@
     "@aureooms/js-itertools": "4.1.0",
     "@aureooms/js-measure": "1.0.3",
     "@aureooms/js-predicate": "2.0.2",
-    "@babel/cli": "7.11.6",
-    "@babel/core": "7.11.6",
-    "@babel/preset-env": "7.11.5",
-    "@babel/register": "7.11.5",
+    "@babel/cli": "7.12.0",
+    "@babel/core": "7.12.0",
+    "@babel/preset-env": "7.12.0",
+    "@babel/register": "7.12.0",
     "argparse": "2.0.1",
     "ava": "3.13.0",
     "babel-plugin-transform-remove-console": "6.9.4",
diff --git a/yarn.lock b/yarn.lock
index 15687756..a67607b2 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -32,10 +32,10 @@
   resolved "https://registry.yarnpkg.com/@aureooms/js-predicate/-/js-predicate-2.0.2.tgz#0c09bfbd6616fdb9c2b8f9b894201e8807e810d9"
   integrity sha1-DAm/vWYW/bnCuPm4lCAeiAfoENk=
 
-"@babel/cli@7.11.6":
-  version "7.11.6"
-  resolved "https://registry.yarnpkg.com/@babel/cli/-/cli-7.11.6.tgz#1fcbe61c2a6900c3539c06ee58901141f3558482"
-  integrity sha512-+w7BZCvkewSmaRM6H4L2QM3RL90teqEIHDIFXAmrW33+0jhlymnDAEdqVeCZATvxhQuio1ifoGVlJJbIiH9Ffg==
+"@babel/cli@7.12.0":
+  version "7.12.0"
+  resolved "https://registry.yarnpkg.com/@babel/cli/-/cli-7.12.0.tgz#5de7ac9e8916a48725712c9ff1b26e8463c0d7a7"
+  integrity sha512-0EO6EN6brF4g0HaR6qQr2USkCvFjKNgBdmaYNW5NzB1IeHhqQkGhErX3/hvWA7+g/onS41IM/wm+yD+hcSwgVQ==
   dependencies:
     commander "^4.0.1"
     convert-source-map "^1.1.0"
@@ -46,7 +46,8 @@
     slash "^2.0.0"
     source-map "^0.5.0"
   optionalDependencies:
-    chokidar "^2.1.8"
+    chokidar "^3.4.0"
+    chokidarAt2 "https://registry.npmjs.org/chokidar/-/chokidar-2.1.8.tgz"
 
 "@babel/code-frame@^7.0.0", "@babel/code-frame@^7.10.4":
   version "7.10.4"
@@ -55,16 +56,34 @@
   dependencies:
     "@babel/highlight" "^7.10.4"
 
-"@babel/compat-data@^7.10.4", "@babel/compat-data@^7.11.0":
-  version "7.11.0"
-  resolved "https://registry.yarnpkg.com/@babel/compat-data/-/compat-data-7.11.0.tgz#e9f73efe09af1355b723a7f39b11bad637d7c99c"
-  integrity sha512-TPSvJfv73ng0pfnEOh17bYMPQbI95+nGWc71Ss4vZdRBHTDqmM9Z8ZV4rYz8Ks7sfzc95n30k6ODIq5UGnXcYQ==
+"@babel/compat-data@^7.12.0":
+  version "7.12.0"
+  resolved "https://registry.yarnpkg.com/@babel/compat-data/-/compat-data-7.12.0.tgz#443aea07a5aeba7942cb067de6b8272f2ab36b9e"
+  integrity sha512-jAbCtMANC9ptXxbSVXIqV/3H0bkh7iyyv6JS5lu10av45bcc2QmDNJXkASZCFwbBt75Q0AEq/BB+bNa3x1QgYQ==
+
+"@babel/core@7.12.0":
+  version "7.12.0"
+  resolved "https://registry.yarnpkg.com/@babel/core/-/core-7.12.0.tgz#e42e07a086e978cdd4c61f4078d8230fb817cc86"
+  integrity sha512-iV7Gwg0DePKvdDZZWRTkj4MW+6/AbVWd4ZCg+zk8H1RVt5xBpUZS6vLQWwb3pyLg4BFTaGiQCPoJ4Ibmbne4fA==
   dependencies:
-    browserslist "^4.12.0"
-    invariant "^2.2.4"
-    semver "^5.5.0"
+    "@babel/code-frame" "^7.10.4"
+    "@babel/generator" "^7.12.0"
+    "@babel/helper-module-transforms" "^7.12.0"
+    "@babel/helpers" "^7.10.4"
+    "@babel/parser" "^7.12.0"
+    "@babel/template" "^7.10.4"
+    "@babel/traverse" "^7.12.0"
+    "@babel/types" "^7.12.0"
+    convert-source-map "^1.7.0"
+    debug "^4.1.0"
+    gensync "^1.0.0-beta.1"
+    json5 "^2.1.2"
+    lodash "^4.17.19"
+    resolve "^1.3.2"
+    semver "^5.4.1"
+    source-map "^0.5.0"
 
-"@babel/core@7.11.6", "@babel/core@^7.7.5":
+"@babel/core@^7.7.5":
   version "7.11.6"
   resolved "https://registry.yarnpkg.com/@babel/core/-/core-7.11.6.tgz#3a9455dc7387ff1bac45770650bc13ba04a15651"
   integrity sha512-Wpcv03AGnmkgm6uS6k8iwhIwTrcP0m17TL1n1sy7qD0qelDu4XNeW0dN0mHfa+Gei211yDaLoEe/VlbXQzM4Bg==
@@ -95,6 +114,15 @@
     jsesc "^2.5.1"
     source-map "^0.5.0"
 
+"@babel/generator@^7.12.0":
+  version "7.12.0"
+  resolved "https://registry.yarnpkg.com/@babel/generator/-/generator-7.12.0.tgz#91a45f1c18ca8d895a35a04da1a4cf7ea3f37f98"
+  integrity sha512-8lnf4QcyiQMf5XQp47BltuMTocsOh6P0z/vueEh8GzhmWWlDbdvOoI5Ziddg0XYhmnx35HyByUW51/9NprF8cA==
+  dependencies:
+    "@babel/types" "^7.12.0"
+    jsesc "^2.5.1"
+    source-map "^0.5.0"
+
 "@babel/helper-annotate-as-pure@^7.10.4":
   version "7.10.4"
   resolved "https://registry.yarnpkg.com/@babel/helper-annotate-as-pure/-/helper-annotate-as-pure-7.10.4.tgz#5bf0d495a3f757ac3bda48b5bf3b3ba309c72ba3"
@@ -110,15 +138,14 @@
     "@babel/helper-explode-assignable-expression" "^7.10.4"
     "@babel/types" "^7.10.4"
 
-"@babel/helper-compilation-targets@^7.10.4":
-  version "7.10.4"
-  resolved "https://registry.yarnpkg.com/@babel/helper-compilation-targets/-/helper-compilation-targets-7.10.4.tgz#804ae8e3f04376607cc791b9d47d540276332bd2"
-  integrity sha512-a3rYhlsGV0UHNDvrtOXBg8/OpfV0OKTkxKPzIplS1zpx7CygDcWWxckxZeDd3gzPzC4kUT0A4nVFDK0wGMh4MQ==
+"@babel/helper-compilation-targets@^7.12.0":
+  version "7.12.0"
+  resolved "https://registry.yarnpkg.com/@babel/helper-compilation-targets/-/helper-compilation-targets-7.12.0.tgz#c477d89a1f4d626c8149b9b88802f78d66d0c99a"
+  integrity sha512-NbDFJNjDgxE7IkrHp5gq2+Tr8bEdCLKYN90YDQEjMiTMUAFAcShNkaH8kydcmU0mEQTiQY0Ydy/+1xfS2OCEnw==
   dependencies:
-    "@babel/compat-data" "^7.10.4"
+    "@babel/compat-data" "^7.12.0"
+    "@babel/helper-validator-option" "^7.12.0"
     browserslist "^4.12.0"
-    invariant "^2.2.4"
-    levenary "^1.1.1"
     semver "^5.5.0"
 
 "@babel/helper-create-class-features-plugin@^7.10.4":
@@ -188,6 +215,13 @@
   dependencies:
     "@babel/types" "^7.11.0"
 
+"@babel/helper-member-expression-to-functions@^7.12.0":
+  version "7.12.0"
+  resolved "https://registry.yarnpkg.com/@babel/helper-member-expression-to-functions/-/helper-member-expression-to-functions-7.12.0.tgz#48f605fa801764f3e5b2e301e49d35fe1820c4f3"
+  integrity sha512-I0d/bgzgzgLsJMk7UZ0TN2KV3OGjC/t/9Saz8PKb9jrcEAXhgjGysOgp4PDKydIKjUv/gj2St4ae+ov8l+T9Xg==
+  dependencies:
+    "@babel/types" "^7.12.0"
+
 "@babel/helper-module-imports@^7.10.4":
   version "7.10.4"
   resolved "https://registry.yarnpkg.com/@babel/helper-module-imports/-/helper-module-imports-7.10.4.tgz#4c5c54be04bd31670a7382797d75b9fa2e5b5620"
@@ -208,6 +242,21 @@
     "@babel/types" "^7.11.0"
     lodash "^4.17.19"
 
+"@babel/helper-module-transforms@^7.12.0":
+  version "7.12.0"
+  resolved "https://registry.yarnpkg.com/@babel/helper-module-transforms/-/helper-module-transforms-7.12.0.tgz#8ac7d9e8716f94549a42e577c5429391950e33f3"
+  integrity sha512-1ZTMoCiLSzTJLbq7mSaTHki4oIrBIf/dUbzdhwTrvtMU3ZNVKwQmGae3gSiqppo7G8HAgnXmc43rfEaD8yYLLQ==
+  dependencies:
+    "@babel/helper-module-imports" "^7.10.4"
+    "@babel/helper-replace-supers" "^7.12.0"
+    "@babel/helper-simple-access" "^7.10.4"
+    "@babel/helper-split-export-declaration" "^7.11.0"
+    "@babel/helper-validator-identifier" "^7.10.4"
+    "@babel/template" "^7.10.4"
+    "@babel/traverse" "^7.12.0"
+    "@babel/types" "^7.12.0"
+    lodash "^4.17.19"
+
 "@babel/helper-optimise-call-expression@^7.10.4":
   version "7.10.4"
   resolved "https://registry.yarnpkg.com/@babel/helper-optimise-call-expression/-/helper-optimise-call-expression-7.10.4.tgz#50dc96413d594f995a77905905b05893cd779673"
@@ -247,6 +296,16 @@
     "@babel/traverse" "^7.10.4"
     "@babel/types" "^7.10.4"
 
+"@babel/helper-replace-supers@^7.12.0":
+  version "7.12.0"
+  resolved "https://registry.yarnpkg.com/@babel/helper-replace-supers/-/helper-replace-supers-7.12.0.tgz#98d3f3eb779752e59c7422ab387c9b444323be60"
+  integrity sha512-9kycFdq2c9e7PXZOr2z/ZqTFF9OzFu287iFwYS+CiDVPuoTCfY8hoTsIqNQNetQjlqoRsRyJFrMG1uhGAR4EEw==
+  dependencies:
+    "@babel/helper-member-expression-to-functions" "^7.12.0"
+    "@babel/helper-optimise-call-expression" "^7.10.4"
+    "@babel/traverse" "^7.12.0"
+    "@babel/types" "^7.12.0"
+
 "@babel/helper-simple-access@^7.10.4":
   version "7.10.4"
   resolved "https://registry.yarnpkg.com/@babel/helper-simple-access/-/helper-simple-access-7.10.4.tgz#0f5ccda2945277a2a7a2d3a821e15395edcf3461"
@@ -274,6 +333,11 @@
   resolved "https://registry.yarnpkg.com/@babel/helper-validator-identifier/-/helper-validator-identifier-7.10.4.tgz#a78c7a7251e01f616512d31b10adcf52ada5e0d2"
   integrity sha512-3U9y+43hz7ZM+rzG24Qe2mufW5KhvFg/NhnNph+i9mgCtdTCtMJuI1TMkrIUiK7Ix4PYlRF9I5dhqaLYA/ADXw==
 
+"@babel/helper-validator-option@^7.12.0":
+  version "7.12.0"
+  resolved "https://registry.yarnpkg.com/@babel/helper-validator-option/-/helper-validator-option-7.12.0.tgz#1d1fc48a9b69763da61b892774b0df89aee1c969"
+  integrity sha512-NRfKaAQw/JCMsTFUdJI6cp4MoJGGVBRQTRSiW1nwlGldNqzjB9jqWI0SZqQksC724dJoKqwG+QqfS9ib7SoVsw==
+
 "@babel/helper-wrap-function@^7.10.4":
   version "7.10.4"
   resolved "https://registry.yarnpkg.com/@babel/helper-wrap-function/-/helper-wrap-function-7.10.4.tgz#8a6f701eab0ff39f765b5a1cfef409990e624b87"
@@ -307,6 +371,11 @@
   resolved "https://registry.yarnpkg.com/@babel/parser/-/parser-7.11.5.tgz#c7ff6303df71080ec7a4f5b8c003c58f1cf51037"
   integrity sha512-X9rD8qqm695vgmeaQ4fvz/o3+Wk4ZzQvSHkDBgpYKxpD4qTAUm88ZKtHkVqIOsYFFbIQ6wQYhC6q7pjqVK0E0Q==
 
+"@babel/parser@^7.12.0":
+  version "7.12.0"
+  resolved "https://registry.yarnpkg.com/@babel/parser/-/parser-7.12.0.tgz#2ad388f3960045b22f9b7d4bf85e80b15a1c9e3a"
+  integrity sha512-dYmySMYnlus2jwl7JnnajAj11obRStZoW9cG04wh4ZuhozDn11tDUrhHcUZ9iuNHqALAhh60XqNaYXpvuuE/Gg==
+
 "@babel/plugin-proposal-async-generator-functions@^7.10.4":
   version "7.10.5"
   resolved "https://registry.yarnpkg.com/@babel/plugin-proposal-async-generator-functions/-/plugin-proposal-async-generator-functions-7.10.5.tgz#3491cabf2f7c179ab820606cec27fed15e0e8558"
@@ -332,10 +401,10 @@
     "@babel/helper-plugin-utils" "^7.10.4"
     "@babel/plugin-syntax-dynamic-import" "^7.8.0"
 
-"@babel/plugin-proposal-export-namespace-from@^7.10.4":
-  version "7.10.4"
-  resolved "https://registry.yarnpkg.com/@babel/plugin-proposal-export-namespace-from/-/plugin-proposal-export-namespace-from-7.10.4.tgz#570d883b91031637b3e2958eea3c438e62c05f54"
-  integrity sha512-aNdf0LY6/3WXkhh0Fdb6Zk9j1NMD8ovj3F6r0+3j837Pn1S1PdNtcwJ5EG9WkVPNHPxyJDaxMaAOVq4eki0qbg==
+"@babel/plugin-proposal-export-namespace-from@^7.12.0":
+  version "7.12.0"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-proposal-export-namespace-from/-/plugin-proposal-export-namespace-from-7.12.0.tgz#08b0f8100bbae1199a5f5294f38a1b0b8d8402fc"
+  integrity sha512-ao43U2ptSe+mIZAQo2nBV5Wx2Ie3i2XbLt8jCXZpv+bvLY1Twv0lak4YZ1Ps5OwbeLMAl3iOVScgGMOImBae1g==
   dependencies:
     "@babel/helper-plugin-utils" "^7.10.4"
     "@babel/plugin-syntax-export-namespace-from" "^7.8.3"
@@ -348,26 +417,26 @@
     "@babel/helper-plugin-utils" "^7.10.4"
     "@babel/plugin-syntax-json-strings" "^7.8.0"
 
-"@babel/plugin-proposal-logical-assignment-operators@^7.11.0":
-  version "7.11.0"
-  resolved "https://registry.yarnpkg.com/@babel/plugin-proposal-logical-assignment-operators/-/plugin-proposal-logical-assignment-operators-7.11.0.tgz#9f80e482c03083c87125dee10026b58527ea20c8"
-  integrity sha512-/f8p4z+Auz0Uaf+i8Ekf1iM7wUNLcViFUGiPxKeXvxTSl63B875YPiVdUDdem7hREcI0E0kSpEhS8tF5RphK7Q==
+"@babel/plugin-proposal-logical-assignment-operators@^7.12.0":
+  version "7.12.0"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-proposal-logical-assignment-operators/-/plugin-proposal-logical-assignment-operators-7.12.0.tgz#830d8ff4984d800b2824e8eac0005ecb7430328e"
+  integrity sha512-dssjXHzdMQal4q6GCSwDTVPEbyBLdd9+7aSlzAkQbrGEKq5xG8pvhQ7u2ktUrCLRmzQphZnSzILBL5ta4xSRlA==
   dependencies:
     "@babel/helper-plugin-utils" "^7.10.4"
     "@babel/plugin-syntax-logical-assignment-operators" "^7.10.4"
 
-"@babel/plugin-proposal-nullish-coalescing-operator@^7.10.4":
-  version "7.10.4"
-  resolved "https://registry.yarnpkg.com/@babel/plugin-proposal-nullish-coalescing-operator/-/plugin-proposal-nullish-coalescing-operator-7.10.4.tgz#02a7e961fc32e6d5b2db0649e01bf80ddee7e04a"
-  integrity sha512-wq5n1M3ZUlHl9sqT2ok1T2/MTt6AXE0e1Lz4WzWBr95LsAZ5qDXe4KnFuauYyEyLiohvXFMdbsOTMyLZs91Zlw==
+"@babel/plugin-proposal-nullish-coalescing-operator@^7.12.0":
+  version "7.12.0"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-proposal-nullish-coalescing-operator/-/plugin-proposal-nullish-coalescing-operator-7.12.0.tgz#d82174a531305df4d7079ce3782269b35b810b82"
+  integrity sha512-JpNWix2VP2ue31r72fKytTE13nPX1fxl1mudfTaTwcDhl3iExz5NZjQBq012b/BQ6URWoc/onI73pZdYlAfihg==
   dependencies:
     "@babel/helper-plugin-utils" "^7.10.4"
     "@babel/plugin-syntax-nullish-coalescing-operator" "^7.8.0"
 
-"@babel/plugin-proposal-numeric-separator@^7.10.4":
-  version "7.10.4"
-  resolved "https://registry.yarnpkg.com/@babel/plugin-proposal-numeric-separator/-/plugin-proposal-numeric-separator-7.10.4.tgz#ce1590ff0a65ad12970a609d78855e9a4c1aef06"
-  integrity sha512-73/G7QoRoeNkLZFxsoCCvlg4ezE4eM+57PnOqgaPOozd5myfj7p0muD1mRVJvbUWbOzD+q3No2bWbaKy+DJ8DA==
+"@babel/plugin-proposal-numeric-separator@^7.12.0":
+  version "7.12.0"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-proposal-numeric-separator/-/plugin-proposal-numeric-separator-7.12.0.tgz#76de244152abaf2e72800ab0aebc9771f6de3e9a"
+  integrity sha512-iON65YmIy/IpEgteYJ4HfO2q30SLdIxiyjNNlsSjSl0tUxLhSH9PljE5r6sczwdW64ZZzznYNcezdcROB+rDDw==
   dependencies:
     "@babel/helper-plugin-utils" "^7.10.4"
     "@babel/plugin-syntax-numeric-separator" "^7.10.4"
@@ -389,10 +458,10 @@
     "@babel/helper-plugin-utils" "^7.10.4"
     "@babel/plugin-syntax-optional-catch-binding" "^7.8.0"
 
-"@babel/plugin-proposal-optional-chaining@^7.11.0":
-  version "7.11.0"
-  resolved "https://registry.yarnpkg.com/@babel/plugin-proposal-optional-chaining/-/plugin-proposal-optional-chaining-7.11.0.tgz#de5866d0646f6afdaab8a566382fe3a221755076"
-  integrity sha512-v9fZIu3Y8562RRwhm1BbMRxtqZNFmFA2EG+pT2diuU8PT3H6T/KXoZ54KgYisfOFZHV6PfvAiBIZ9Rcz+/JCxA==
+"@babel/plugin-proposal-optional-chaining@^7.12.0":
+  version "7.12.0"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-proposal-optional-chaining/-/plugin-proposal-optional-chaining-7.12.0.tgz#0159b549f165016fc9f284b8607a58a37a3b71fe"
+  integrity sha512-CXu9aw32FH/MksqdKvhpiH8pSvxnXJ33E7I7BGNE9VzNRpWgpNzvPpds/tW9E0pjmX9+D1zAHRyHbtyeTboo2g==
   dependencies:
     "@babel/helper-plugin-utils" "^7.10.4"
     "@babel/helper-skip-transparent-expression-wrappers" "^7.11.0"
@@ -627,14 +696,15 @@
     "@babel/helper-simple-access" "^7.10.4"
     babel-plugin-dynamic-import-node "^2.3.3"
 
-"@babel/plugin-transform-modules-systemjs@^7.10.4":
-  version "7.10.5"
-  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-modules-systemjs/-/plugin-transform-modules-systemjs-7.10.5.tgz#6270099c854066681bae9e05f87e1b9cadbe8c85"
-  integrity sha512-f4RLO/OL14/FP1AEbcsWMzpbUz6tssRaeQg11RH1BP/XnPpRoVwgeYViMFacnkaw4k4wjRSjn3ip1Uw9TaXuMw==
+"@babel/plugin-transform-modules-systemjs@^7.12.0":
+  version "7.12.0"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-modules-systemjs/-/plugin-transform-modules-systemjs-7.12.0.tgz#bca842db6980cfc98ae7d0f2c907c9b1df3f874e"
+  integrity sha512-h2fDMnwRwBiNMmTGAWqUo404Z3oLbrPE6hyATecyIbsEsrbM5gjLbfKQLb6hjiouMlGHH+yliYBbc4NPgWKE/g==
   dependencies:
     "@babel/helper-hoist-variables" "^7.10.4"
-    "@babel/helper-module-transforms" "^7.10.5"
+    "@babel/helper-module-transforms" "^7.12.0"
     "@babel/helper-plugin-utils" "^7.10.4"
+    "@babel/helper-validator-identifier" "^7.10.4"
     babel-plugin-dynamic-import-node "^2.3.3"
 
 "@babel/plugin-transform-modules-umd@^7.10.4":
@@ -749,26 +819,27 @@
     "@babel/helper-create-regexp-features-plugin" "^7.10.4"
     "@babel/helper-plugin-utils" "^7.10.4"
 
-"@babel/preset-env@7.11.5":
-  version "7.11.5"
-  resolved "https://registry.yarnpkg.com/@babel/preset-env/-/preset-env-7.11.5.tgz#18cb4b9379e3e92ffea92c07471a99a2914e4272"
-  integrity sha512-kXqmW1jVcnB2cdueV+fyBM8estd5mlNfaQi6lwLgRwCby4edpavgbFhiBNjmWA3JpB/yZGSISa7Srf+TwxDQoA==
+"@babel/preset-env@7.12.0":
+  version "7.12.0"
+  resolved "https://registry.yarnpkg.com/@babel/preset-env/-/preset-env-7.12.0.tgz#7d2d0c4f4a14ca0fd7d905a741070ab4745177b7"
+  integrity sha512-jSIHvHSuF+hBUIrvA2/61yIzhH+ceLOXGLTH1nwPvQlso/lNxXsoE/nvrCzY5M77KRzhKegB1CvdhWPZmYDZ5A==
   dependencies:
-    "@babel/compat-data" "^7.11.0"
-    "@babel/helper-compilation-targets" "^7.10.4"
+    "@babel/compat-data" "^7.12.0"
+    "@babel/helper-compilation-targets" "^7.12.0"
     "@babel/helper-module-imports" "^7.10.4"
     "@babel/helper-plugin-utils" "^7.10.4"
+    "@babel/helper-validator-option" "^7.12.0"
     "@babel/plugin-proposal-async-generator-functions" "^7.10.4"
     "@babel/plugin-proposal-class-properties" "^7.10.4"
     "@babel/plugin-proposal-dynamic-import" "^7.10.4"
-    "@babel/plugin-proposal-export-namespace-from" "^7.10.4"
+    "@babel/plugin-proposal-export-namespace-from" "^7.12.0"
     "@babel/plugin-proposal-json-strings" "^7.10.4"
-    "@babel/plugin-proposal-logical-assignment-operators" "^7.11.0"
-    "@babel/plugin-proposal-nullish-coalescing-operator" "^7.10.4"
-    "@babel/plugin-proposal-numeric-separator" "^7.10.4"
+    "@babel/plugin-proposal-logical-assignment-operators" "^7.12.0"
+    "@babel/plugin-proposal-nullish-coalescing-operator" "^7.12.0"
+    "@babel/plugin-proposal-numeric-separator" "^7.12.0"
     "@babel/plugin-proposal-object-rest-spread" "^7.11.0"
     "@babel/plugin-proposal-optional-catch-binding" "^7.10.4"
-    "@babel/plugin-proposal-optional-chaining" "^7.11.0"
+    "@babel/plugin-proposal-optional-chaining" "^7.12.0"
     "@babel/plugin-proposal-private-methods" "^7.10.4"
     "@babel/plugin-proposal-unicode-property-regex" "^7.10.4"
     "@babel/plugin-syntax-async-generators" "^7.8.0"
@@ -799,7 +870,7 @@
     "@babel/plugin-transform-member-expression-literals" "^7.10.4"
     "@babel/plugin-transform-modules-amd" "^7.10.4"
     "@babel/plugin-transform-modules-commonjs" "^7.10.4"
-    "@babel/plugin-transform-modules-systemjs" "^7.10.4"
+    "@babel/plugin-transform-modules-systemjs" "^7.12.0"
     "@babel/plugin-transform-modules-umd" "^7.10.4"
     "@babel/plugin-transform-named-capturing-groups-regex" "^7.10.4"
     "@babel/plugin-transform-new-target" "^7.10.4"
@@ -816,11 +887,9 @@
     "@babel/plugin-transform-unicode-escapes" "^7.10.4"
     "@babel/plugin-transform-unicode-regex" "^7.10.4"
     "@babel/preset-modules" "^0.1.3"
-    "@babel/types" "^7.11.5"
+    "@babel/types" "^7.12.0"
     browserslist "^4.12.0"
     core-js-compat "^3.6.2"
-    invariant "^2.2.2"
-    levenary "^1.1.1"
     semver "^5.5.0"
 
 "@babel/preset-modules@^0.1.3":
@@ -834,10 +903,10 @@
     "@babel/types" "^7.4.4"
     esutils "^2.0.2"
 
-"@babel/register@7.11.5":
-  version "7.11.5"
-  resolved "https://registry.yarnpkg.com/@babel/register/-/register-7.11.5.tgz#79becf89e0ddd0fba8b92bc279bc0f5d2d7ce2ea"
-  integrity sha512-CAml0ioKX+kOAvBQDHa/+t1fgOt3qkTIz0TrRtRAT6XY0m5qYZXR85k6/sLCNPMGhYDlCFHCYuU0ybTJbvlC6w==
+"@babel/register@7.12.0":
+  version "7.12.0"
+  resolved "https://registry.yarnpkg.com/@babel/register/-/register-7.12.0.tgz#fa5fa900bd79380ff508ae963a5766172d3a9e56"
+  integrity sha512-2F2v0qYSAwrGyK9mZ8lIoUluHRzLTgkJ2oRXlLV9GVe/ze/sTFBiOocLRMSJYDB2lLiABlVC+pZHlZ8qihO1Xg==
   dependencies:
     find-cache-dir "^2.0.0"
     lodash "^4.17.19"
@@ -876,6 +945,21 @@
     globals "^11.1.0"
     lodash "^4.17.19"
 
+"@babel/traverse@^7.12.0":
+  version "7.12.0"
+  resolved "https://registry.yarnpkg.com/@babel/traverse/-/traverse-7.12.0.tgz#ed31953d6e708cdd34443de2fcdb55f72cdfb266"
+  integrity sha512-ZU9e79xpOukCNPkQ1UzR4gJKCruGckr6edd8v8lmKpSk8iakgUIvb+5ZtaKKV9f7O+x5r+xbMDDIbzVpUoiIuw==
+  dependencies:
+    "@babel/code-frame" "^7.10.4"
+    "@babel/generator" "^7.12.0"
+    "@babel/helper-function-name" "^7.10.4"
+    "@babel/helper-split-export-declaration" "^7.11.0"
+    "@babel/parser" "^7.12.0"
+    "@babel/types" "^7.12.0"
+    debug "^4.1.0"
+    globals "^11.1.0"
+    lodash "^4.17.19"
+
 "@babel/types@^7.10.4", "@babel/types@^7.10.5", "@babel/types@^7.11.0", "@babel/types@^7.11.5", "@babel/types@^7.4.4", "@babel/types@^7.7.0":
   version "7.11.5"
   resolved "https://registry.yarnpkg.com/@babel/types/-/types-7.11.5.tgz#d9de577d01252d77c6800cee039ee64faf75662d"
@@ -885,6 +969,15 @@
     lodash "^4.17.19"
     to-fast-properties "^2.0.0"
 
+"@babel/types@^7.12.0":
+  version "7.12.0"
+  resolved "https://registry.yarnpkg.com/@babel/types/-/types-7.12.0.tgz#b6b49f425ee59043fbc89c61b11a13d5eae7b5c6"
+  integrity sha512-ggIyFmT2zMaYRheOfPDQ4gz7QqV3B+t2rjqjbttDJxMcb7/LukvWCmlIl1sWcOxrvwpTDd+z0OytzqsbGeb3/g==
+  dependencies:
+    "@babel/helper-validator-identifier" "^7.10.4"
+    lodash "^4.17.19"
+    to-fast-properties "^2.0.0"
+
 "@concordance/react@^2.0.0":
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/@concordance/react/-/react-2.0.0.tgz#aef913f27474c53731f4fd79cc2f54897de90fde"
@@ -2098,24 +2191,20 @@ cheerio@1.0.0-rc.2:
     lodash "^4.15.0"
     parse5 "^3.0.1"
 
-chokidar@^2.1.8:
-  version "2.1.8"
-  resolved "https://registry.yarnpkg.com/chokidar/-/chokidar-2.1.8.tgz#804b3a7b6a99358c3c5c61e71d8728f041cff917"
-  integrity sha512-ZmZUazfOzf0Nve7duiCKD23PFSCs4JPoYyccjUFF3aQkQadqBhfzhjkwBH2mNOG9cTBwhamM37EIsIkZw3nRgg==
+chokidar@^3.4.0:
+  version "3.4.3"
+  resolved "https://registry.yarnpkg.com/chokidar/-/chokidar-3.4.3.tgz#c1df38231448e45ca4ac588e6c79573ba6a57d5b"
+  integrity sha512-DtM3g7juCXQxFVSNPNByEC2+NImtBuxQQvWlHunpJIS5Ocr0lG306cC7FCi7cEA0fzmybPUIl4txBIobk1gGOQ==
   dependencies:
-    anymatch "^2.0.0"
-    async-each "^1.0.1"
-    braces "^2.3.2"
-    glob-parent "^3.1.0"
-    inherits "^2.0.3"
-    is-binary-path "^1.0.0"
-    is-glob "^4.0.0"
-    normalize-path "^3.0.0"
-    path-is-absolute "^1.0.0"
-    readdirp "^2.2.1"
-    upath "^1.1.1"
+    anymatch "~3.1.1"
+    braces "~3.0.2"
+    glob-parent "~5.1.0"
+    is-binary-path "~2.1.0"
+    is-glob "~4.0.1"
+    normalize-path "~3.0.0"
+    readdirp "~3.5.0"
   optionalDependencies:
-    fsevents "^1.2.7"
+    fsevents "~2.1.2"
 
 chokidar@^3.4.2:
   version "3.4.2"
@@ -2132,6 +2221,25 @@ chokidar@^3.4.2:
   optionalDependencies:
     fsevents "~2.1.2"
 
+"chokidarAt2@https://registry.npmjs.org/chokidar/-/chokidar-2.1.8.tgz":
+  version "2.1.8"
+  uid "804b3a7b6a99358c3c5c61e71d8728f041cff917"
+  resolved "https://registry.npmjs.org/chokidar/-/chokidar-2.1.8.tgz#804b3a7b6a99358c3c5c61e71d8728f041cff917"
+  dependencies:
+    anymatch "^2.0.0"
+    async-each "^1.0.1"
+    braces "^2.3.2"
+    glob-parent "^3.1.0"
+    inherits "^2.0.3"
+    is-binary-path "^1.0.0"
+    is-glob "^4.0.0"
+    normalize-path "^3.0.0"
+    path-is-absolute "^1.0.0"
+    readdirp "^2.2.1"
+    upath "^1.1.1"
+  optionalDependencies:
+    fsevents "^1.2.7"
+
 chunkd@^2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/chunkd/-/chunkd-2.0.1.tgz#49cd1d7b06992dc4f7fccd962fe2a101ee7da920"
@@ -4448,7 +4556,7 @@ interpret@^1.2.0:
   resolved "https://registry.yarnpkg.com/interpret/-/interpret-1.4.0.tgz#665ab8bc4da27a774a40584e812e3e0fa45b1a1e"
   integrity sha512-agE4QfB2Lkp9uICn7BAqoscw4SZP9kTE2hxiFI3jBPmXJfdqiahTbUuKGsMoN2GtqL9AxhYioAcVvgsb1HvRbA==
 
-invariant@^2.2.2, invariant@^2.2.4:
+invariant@^2.2.2:
   version "2.2.4"
   resolved "https://registry.yarnpkg.com/invariant/-/invariant-2.2.4.tgz#610f3c92c9359ce1db616e538008d23ff35158e6"
   integrity sha512-phJfQVBuaJM5raOpJjSfkiD6BpbCE4Ns//LaXl6wGYtUBY83nWS6Rf9tXm2e8VaK60JEjYldbPif/A2B1C2gNA==
@@ -5155,18 +5263,6 @@ lcov-parse@^1.0.0:
   resolved "https://registry.yarnpkg.com/lcov-parse/-/lcov-parse-1.0.0.tgz#eb0d46b54111ebc561acb4c408ef9363bdc8f7e0"
   integrity sha1-6w1GtUER68VhrLTECO+TY73I9+A=
 
-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==
-
-levenary@^1.1.1:
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/levenary/-/levenary-1.1.1.tgz#842a9ee98d2075aa7faeedbe32679e9205f46f77"
-  integrity sha512-mkAdOIt79FD6irqjYSs4rdbnlT5vRonMEvBVPVb3XmevfS8kgRXwfes0dhPdEtzTWD/1eNE/Bm/G1iRt6DcnQQ==
-  dependencies:
-    leven "^3.1.0"
-
 levn@^0.4.1:
   version "0.4.1"
   resolved "https://registry.yarnpkg.com/levn/-/levn-0.4.1.tgz#ae4562c007473b932a6200d403268dd2fffc6ade"
@@ -6854,6 +6950,13 @@ readdirp@~3.4.0:
   dependencies:
     picomatch "^2.2.1"
 
+readdirp@~3.5.0:
+  version "3.5.0"
+  resolved "https://registry.yarnpkg.com/readdirp/-/readdirp-3.5.0.tgz#9ba74c019b15d365278d2e91bb8c48d7b4d42c9e"
+  integrity sha512-cMhu7c/8rdhkHXWsY+osBhfSy0JikwpHK/5+imo+LpeasTF8ouErHrlYkwT0++njiyuDvc7OFY5T3ukvZ8qmFQ==
+  dependencies:
+    picomatch "^2.2.1"
+
 redent@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/redent/-/redent-3.0.0.tgz#e557b7998316bb53c9f1f56fa626352c6963059f"