diff --git a/package.json b/package.json
index 3360015..6082342 100644
--- a/package.json
+++ b/package.json
@@ -25,7 +25,7 @@
   },
   "devDependencies": {
     "babel-cli": "^6.26.0",
-    "babel-eslint": "^8.0.0",
+    "babel-eslint": "^10.0.2",
     "babel-preset-latest": "^6.24.1",
     "babel-preset-stage-3": "^6.24.1",
     "chai": "^4.1.2",
diff --git a/yarn.lock b/yarn.lock
index adf491e..d3f2a3b 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2,6 +2,84 @@
 # yarn lockfile v1
 
 
+"@babel/code-frame@^7.0.0":
+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/@babel/code-frame/-/code-frame-7.0.0.tgz#06e2ab19bdb535385559aabb5ba59729482800f8"
+  dependencies:
+    "@babel/highlight" "^7.0.0"
+
+"@babel/generator@^7.5.0":
+  version "7.5.0"
+  resolved "https://registry.yarnpkg.com/@babel/generator/-/generator-7.5.0.tgz#f20e4b7a91750ee8b63656073d843d2a736dca4a"
+  dependencies:
+    "@babel/types" "^7.5.0"
+    jsesc "^2.5.1"
+    lodash "^4.17.11"
+    source-map "^0.5.0"
+    trim-right "^1.0.1"
+
+"@babel/helper-function-name@^7.1.0":
+  version "7.1.0"
+  resolved "https://registry.yarnpkg.com/@babel/helper-function-name/-/helper-function-name-7.1.0.tgz#a0ceb01685f73355d4360c1247f582bfafc8ff53"
+  dependencies:
+    "@babel/helper-get-function-arity" "^7.0.0"
+    "@babel/template" "^7.1.0"
+    "@babel/types" "^7.0.0"
+
+"@babel/helper-get-function-arity@^7.0.0":
+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/@babel/helper-get-function-arity/-/helper-get-function-arity-7.0.0.tgz#83572d4320e2a4657263734113c42868b64e49c3"
+  dependencies:
+    "@babel/types" "^7.0.0"
+
+"@babel/helper-split-export-declaration@^7.4.4":
+  version "7.4.4"
+  resolved "https://registry.yarnpkg.com/@babel/helper-split-export-declaration/-/helper-split-export-declaration-7.4.4.tgz#ff94894a340be78f53f06af038b205c49d993677"
+  dependencies:
+    "@babel/types" "^7.4.4"
+
+"@babel/highlight@^7.0.0":
+  version "7.5.0"
+  resolved "https://registry.yarnpkg.com/@babel/highlight/-/highlight-7.5.0.tgz#56d11312bd9248fa619591d02472be6e8cb32540"
+  dependencies:
+    chalk "^2.0.0"
+    esutils "^2.0.2"
+    js-tokens "^4.0.0"
+
+"@babel/parser@^7.0.0", "@babel/parser@^7.4.4", "@babel/parser@^7.5.0":
+  version "7.5.0"
+  resolved "https://registry.yarnpkg.com/@babel/parser/-/parser-7.5.0.tgz#3e0713dff89ad6ae37faec3b29dcfc5c979770b7"
+
+"@babel/template@^7.1.0":
+  version "7.4.4"
+  resolved "https://registry.yarnpkg.com/@babel/template/-/template-7.4.4.tgz#f4b88d1225689a08f5bc3a17483545be9e4ed237"
+  dependencies:
+    "@babel/code-frame" "^7.0.0"
+    "@babel/parser" "^7.4.4"
+    "@babel/types" "^7.4.4"
+
+"@babel/traverse@^7.0.0":
+  version "7.5.0"
+  resolved "https://registry.yarnpkg.com/@babel/traverse/-/traverse-7.5.0.tgz#4216d6586854ef5c3c4592dab56ec7eb78485485"
+  dependencies:
+    "@babel/code-frame" "^7.0.0"
+    "@babel/generator" "^7.5.0"
+    "@babel/helper-function-name" "^7.1.0"
+    "@babel/helper-split-export-declaration" "^7.4.4"
+    "@babel/parser" "^7.5.0"
+    "@babel/types" "^7.5.0"
+    debug "^4.1.0"
+    globals "^11.1.0"
+    lodash "^4.17.11"
+
+"@babel/types@^7.0.0", "@babel/types@^7.4.4", "@babel/types@^7.5.0":
+  version "7.5.0"
+  resolved "https://registry.yarnpkg.com/@babel/types/-/types-7.5.0.tgz#e47d43840c2e7f9105bc4d3a2c371b4d0c7832ab"
+  dependencies:
+    esutils "^2.0.2"
+    lodash "^4.17.11"
+    to-fast-properties "^2.0.0"
+
 abbrev@1:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/abbrev/-/abbrev-1.1.0.tgz#d0554c2256636e2f56e7c2e5ad183f859428d81f"
@@ -173,14 +251,6 @@ babel-cli@^6.26.0:
   optionalDependencies:
     chokidar "^1.6.1"
 
-babel-code-frame@7.0.0-beta.0:
-  version "7.0.0-beta.0"
-  resolved "https://registry.yarnpkg.com/babel-code-frame/-/babel-code-frame-7.0.0-beta.0.tgz#418a7b5f3f7dc9a4670e61b1158b4c5661bec98d"
-  dependencies:
-    chalk "^2.0.0"
-    esutils "^2.0.2"
-    js-tokens "^3.0.0"
-
 babel-code-frame@^6.22.0, babel-code-frame@^6.26.0:
   version "6.26.0"
   resolved "https://registry.yarnpkg.com/babel-code-frame/-/babel-code-frame-6.26.0.tgz#63fd43f7dc1e3bb7ce35947db8fe369a3f58c74b"
@@ -213,14 +283,16 @@ babel-core@^6.26.0:
     slash "^1.0.0"
     source-map "^0.5.6"
 
-babel-eslint@^8.0.0:
-  version "8.0.0"
-  resolved "https://registry.yarnpkg.com/babel-eslint/-/babel-eslint-8.0.0.tgz#ce06f385bdfb5b6d7e603f06222f891abd14c240"
+babel-eslint@^10.0.2:
+  version "10.0.2"
+  resolved "https://registry.yarnpkg.com/babel-eslint/-/babel-eslint-10.0.2.tgz#182d5ac204579ff0881684b040560fdcc1558456"
   dependencies:
-    babel-code-frame "7.0.0-beta.0"
-    babel-traverse "7.0.0-beta.0"
-    babel-types "7.0.0-beta.0"
-    babylon "7.0.0-beta.22"
+    "@babel/code-frame" "^7.0.0"
+    "@babel/parser" "^7.0.0"
+    "@babel/traverse" "^7.0.0"
+    "@babel/types" "^7.0.0"
+    eslint-scope "3.7.1"
+    eslint-visitor-keys "^1.0.0"
 
 babel-generator@^6.26.0:
   version "6.26.0"
@@ -269,15 +341,6 @@ babel-helper-explode-assignable-expression@^6.24.1:
     babel-traverse "^6.24.1"
     babel-types "^6.24.1"
 
-babel-helper-function-name@7.0.0-beta.0:
-  version "7.0.0-beta.0"
-  resolved "https://registry.yarnpkg.com/babel-helper-function-name/-/babel-helper-function-name-7.0.0-beta.0.tgz#d1b6779b647e5c5c31ebeb05e13b998e4d352d56"
-  dependencies:
-    babel-helper-get-function-arity "7.0.0-beta.0"
-    babel-template "7.0.0-beta.0"
-    babel-traverse "7.0.0-beta.0"
-    babel-types "7.0.0-beta.0"
-
 babel-helper-function-name@^6.24.1:
   version "6.24.1"
   resolved "https://registry.yarnpkg.com/babel-helper-function-name/-/babel-helper-function-name-6.24.1.tgz#d3475b8c03ed98242a25b48351ab18399d3580a9"
@@ -288,12 +351,6 @@ babel-helper-function-name@^6.24.1:
     babel-traverse "^6.24.1"
     babel-types "^6.24.1"
 
-babel-helper-get-function-arity@7.0.0-beta.0:
-  version "7.0.0-beta.0"
-  resolved "https://registry.yarnpkg.com/babel-helper-get-function-arity/-/babel-helper-get-function-arity-7.0.0-beta.0.tgz#9d1ab7213bb5efe1ef1638a8ea1489969b5a8b6e"
-  dependencies:
-    babel-types "7.0.0-beta.0"
-
 babel-helper-get-function-arity@^6.24.1:
   version "6.24.1"
   resolved "https://registry.yarnpkg.com/babel-helper-get-function-arity/-/babel-helper-get-function-arity-6.24.1.tgz#8f7782aa93407c41d3aa50908f89b031b1b6853d"
@@ -351,10 +408,6 @@ babel-helpers@^6.24.1:
     babel-runtime "^6.22.0"
     babel-template "^6.24.1"
 
-babel-messages@7.0.0-beta.0:
-  version "7.0.0-beta.0"
-  resolved "https://registry.yarnpkg.com/babel-messages/-/babel-messages-7.0.0-beta.0.tgz#6df01296e49fc8fbd0637394326a167f36da817b"
-
 babel-messages@^6.23.0:
   version "6.23.0"
   resolved "https://registry.yarnpkg.com/babel-messages/-/babel-messages-6.23.0.tgz#f3cdf4703858035b2a2951c6ec5edf6c62f2630e"
@@ -686,15 +739,6 @@ babel-runtime@^6.18.0, babel-runtime@^6.22.0, babel-runtime@^6.26.0:
     core-js "^2.4.0"
     regenerator-runtime "^0.11.0"
 
-babel-template@7.0.0-beta.0:
-  version "7.0.0-beta.0"
-  resolved "https://registry.yarnpkg.com/babel-template/-/babel-template-7.0.0-beta.0.tgz#85083cf9e4395d5e48bf5154d7a8d6991cafecfb"
-  dependencies:
-    babel-traverse "7.0.0-beta.0"
-    babel-types "7.0.0-beta.0"
-    babylon "7.0.0-beta.22"
-    lodash "^4.2.0"
-
 babel-template@^6.24.1, babel-template@^6.26.0:
   version "6.26.0"
   resolved "https://registry.yarnpkg.com/babel-template/-/babel-template-6.26.0.tgz#de03e2d16396b069f46dd9fff8521fb1a0e35e02"
@@ -705,20 +749,6 @@ babel-template@^6.24.1, babel-template@^6.26.0:
     babylon "^6.18.0"
     lodash "^4.17.4"
 
-babel-traverse@7.0.0-beta.0:
-  version "7.0.0-beta.0"
-  resolved "https://registry.yarnpkg.com/babel-traverse/-/babel-traverse-7.0.0-beta.0.tgz#da14be9b762f62a2f060db464eaafdd8cd072a41"
-  dependencies:
-    babel-code-frame "7.0.0-beta.0"
-    babel-helper-function-name "7.0.0-beta.0"
-    babel-messages "7.0.0-beta.0"
-    babel-types "7.0.0-beta.0"
-    babylon "7.0.0-beta.22"
-    debug "^3.0.1"
-    globals "^10.0.0"
-    invariant "^2.2.0"
-    lodash "^4.2.0"
-
 babel-traverse@^6.24.1, babel-traverse@^6.26.0:
   version "6.26.0"
   resolved "https://registry.yarnpkg.com/babel-traverse/-/babel-traverse-6.26.0.tgz#46a9cbd7edcc62c8e5c064e2d2d8d0f4035766ee"
@@ -733,14 +763,6 @@ babel-traverse@^6.24.1, babel-traverse@^6.26.0:
     invariant "^2.2.2"
     lodash "^4.17.4"
 
-babel-types@7.0.0-beta.0:
-  version "7.0.0-beta.0"
-  resolved "https://registry.yarnpkg.com/babel-types/-/babel-types-7.0.0-beta.0.tgz#eb8b6e556470e6dcc4aef982d79ad229469b5169"
-  dependencies:
-    esutils "^2.0.2"
-    lodash "^4.2.0"
-    to-fast-properties "^2.0.0"
-
 babel-types@^6.19.0, babel-types@^6.24.1, babel-types@^6.26.0:
   version "6.26.0"
   resolved "https://registry.yarnpkg.com/babel-types/-/babel-types-6.26.0.tgz#a3b073f94ab49eb6fa55cd65227a334380632497"
@@ -750,10 +772,6 @@ babel-types@^6.19.0, babel-types@^6.24.1, babel-types@^6.26.0:
     lodash "^4.17.4"
     to-fast-properties "^1.0.3"
 
-babylon@7.0.0-beta.22:
-  version "7.0.0-beta.22"
-  resolved "https://registry.yarnpkg.com/babylon/-/babylon-7.0.0-beta.22.tgz#74f0ad82ed7c7c3cfeab74cf684f815104161b65"
-
 babylon@^6.18.0:
   version "6.18.0"
   resolved "https://registry.yarnpkg.com/babylon/-/babylon-6.18.0.tgz#af2f3b88fa6f5c1e4c634d1a0f8eac4f55b395e3"
@@ -994,12 +1012,18 @@ debug@2.6.8, debug@^2.2.0, debug@^2.6.8:
   dependencies:
     ms "2.0.0"
 
-debug@^3.0.1, debug@^3.1.0:
+debug@^3.1.0:
   version "3.2.6"
   resolved "https://registry.yarnpkg.com/debug/-/debug-3.2.6.tgz#e83d17de16d8a7efb7717edbe5fb10135eee629b"
   dependencies:
     ms "^2.1.1"
 
+debug@^4.1.0:
+  version "4.1.1"
+  resolved "https://registry.yarnpkg.com/debug/-/debug-4.1.1.tgz#3b72260255109c6b589cee050f1d516139664791"
+  dependencies:
+    ms "^2.1.1"
+
 deep-eql@^3.0.0:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/deep-eql/-/deep-eql-3.0.1.tgz#dfc9404400ad1c8fe023e7da1df1c147c4b444df"
@@ -1098,7 +1122,7 @@ escape-string-regexp@1.0.5, escape-string-regexp@^1.0.2, escape-string-regexp@^1
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/escape-string-regexp/-/escape-string-regexp-1.0.5.tgz#1b61c0562190a8dff6ae3bb2cf0200ca130b86d4"
 
-eslint-scope@^3.7.1:
+eslint-scope@3.7.1, eslint-scope@^3.7.1:
   version "3.7.1"
   resolved "https://registry.yarnpkg.com/eslint-scope/-/eslint-scope-3.7.1.tgz#3d63c3edfda02e06e01a452ad88caacc7cdcb6e8"
   dependencies:
@@ -1422,11 +1446,7 @@ glob@^7.1.3:
     once "^1.3.0"
     path-is-absolute "^1.0.0"
 
-globals@^10.0.0:
-  version "10.1.0"
-  resolved "https://registry.yarnpkg.com/globals/-/globals-10.1.0.tgz#4425a1881be0d336b4a823a82a7be725d5dd987c"
-
-globals@^11.0.1:
+globals@^11.0.1, globals@^11.1.0:
   version "11.12.0"
   resolved "https://registry.yarnpkg.com/globals/-/globals-11.12.0.tgz#ab8795338868a0babd8525758018c2a7eb95c42e"
 
@@ -1570,7 +1590,7 @@ inquirer@^3.0.6:
     strip-ansi "^4.0.0"
     through "^2.3.6"
 
-invariant@^2.2.0, invariant@^2.2.2:
+invariant@^2.2.2:
   version "2.2.2"
   resolved "https://registry.yarnpkg.com/invariant/-/invariant-2.2.2.tgz#9e1f56ac0acdb6bf303306f338be3b204ae60360"
   dependencies:
@@ -1724,6 +1744,10 @@ js-tokens@^3.0.0, js-tokens@^3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-3.0.2.tgz#9866df395102130e38f7f996bceb65443209c25b"
 
+js-tokens@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-4.0.0.tgz#19203fb59991df98e3a287050d4647cdeaf32499"
+
 js-yaml@0.3.x:
   version "0.3.7"
   resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-0.3.7.tgz#d739d8ee86461e54b354d6a7d7d1f2ad9a167f62"
@@ -1747,6 +1771,10 @@ jsesc@^1.3.0:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/jsesc/-/jsesc-1.3.0.tgz#46c3fec8c1892b12b0833db9bc7622176dbab34b"
 
+jsesc@^2.5.1:
+  version "2.5.2"
+  resolved "https://registry.yarnpkg.com/jsesc/-/jsesc-2.5.2.tgz#80564d2e483dacf6e8ef209650a67df3f0c283a4"
+
 jsesc@~0.5.0:
   version "0.5.0"
   resolved "https://registry.yarnpkg.com/jsesc/-/jsesc-0.5.0.tgz#e7dee66e35d6fc16f710fe91d5cf69f70f08911d"
@@ -1881,7 +1909,7 @@ lodash.keys@^3.0.0:
     lodash.isarguments "^3.0.0"
     lodash.isarray "^3.0.0"
 
-lodash@^4.0.0, lodash@^4.17.4, lodash@^4.2.0, lodash@^4.3.0:
+lodash@^4.0.0, lodash@^4.17.11, lodash@^4.17.4, lodash@^4.3.0:
   version "4.17.14"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.14.tgz#9ce487ae66c96254fe20b599f21b6816028078ba"
 
@@ -2476,7 +2504,7 @@ source-map-support@^0.4.15:
   dependencies:
     source-map "^0.5.6"
 
-source-map@^0.5.6:
+source-map@^0.5.0, source-map@^0.5.6:
   version "0.5.7"
   resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.5.7.tgz#8a039d2d1021d22d1ea14c80d8ea468ba2ef3fcc"