diff --git a/.eslintrc.json b/.eslintrc.json
index 0083c2b..0438ccf 100644
--- a/.eslintrc.json
+++ b/.eslintrc.json
@@ -6,7 +6,7 @@
         "node": true
     },
     "extends": "eslint:recommended",
-    "parser": "./node_modules/babel-eslint",
+    "parser": "babel-eslint",
     "parserOptions": {
         "ecmaVersion": 12
     },
@@ -29,7 +29,9 @@
         ],
         "no-unused-vars": [
             "error",
-            "after-used"
+            {
+                "args": "after-used"
+            }
         ]
     }
 }
diff --git a/package-lock.json b/package-lock.json
index 205a06f..3018479 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -222,6 +222,41 @@
         "to-fast-properties": "^2.0.0"
       }
     },
+    "@eslint/eslintrc": {
+      "version": "0.2.1",
+      "resolved": "https://registry.npmjs.org/@eslint/eslintrc/-/eslintrc-0.2.1.tgz",
+      "integrity": "sha512-XRUeBZ5zBWLYgSANMpThFddrZZkEbGHgUdt5UJjZfnlN9BGCiUBrf+nvbRupSjMvqzwnQN0qwCmOxITt1cfywA==",
+      "dev": true,
+      "requires": {
+        "ajv": "^6.12.4",
+        "debug": "^4.1.1",
+        "espree": "^7.3.0",
+        "globals": "^12.1.0",
+        "ignore": "^4.0.6",
+        "import-fresh": "^3.2.1",
+        "js-yaml": "^3.13.1",
+        "lodash": "^4.17.19",
+        "minimatch": "^3.0.4",
+        "strip-json-comments": "^3.1.1"
+      },
+      "dependencies": {
+        "globals": {
+          "version": "12.4.0",
+          "resolved": "https://registry.npmjs.org/globals/-/globals-12.4.0.tgz",
+          "integrity": "sha512-BWICuzzDvDoH54NHKCseDanAhE3CeDorgDL5MT6LMXXj2WCnd9UC2szdk4AWLfjdgNBCXLUanXYcpBBKOSWGwg==",
+          "dev": true,
+          "requires": {
+            "type-fest": "^0.8.1"
+          }
+        },
+        "strip-json-comments": {
+          "version": "3.1.1",
+          "resolved": "https://registry.npmjs.org/strip-json-comments/-/strip-json-comments-3.1.1.tgz",
+          "integrity": "sha512-6fPc+R4ihwqP6N/aIv2f1gMH8lOVtWQHoqC4yK6oSDVVocumAsfCqjkXnqiYMhmMwS/mEHLp7Vehlt3ql6lEig==",
+          "dev": true
+        }
+      }
+    },
     "@istanbuljs/load-nyc-config": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/@istanbuljs/load-nyc-config/-/load-nyc-config-1.1.0.tgz",
@@ -270,6 +305,18 @@
         "event-target-shim": "^5.0.0"
       }
     },
+    "acorn": {
+      "version": "7.4.1",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-7.4.1.tgz",
+      "integrity": "sha512-nQyp0o1/mNdbTO1PO6kHkwSrmgZ0MT/jCCpNiwbUjGoRN4dlBhqJtoQuCnEOKzgTVwg0ZWiCoQy6SxMebQVh8A==",
+      "dev": true
+    },
+    "acorn-jsx": {
+      "version": "5.3.1",
+      "resolved": "https://registry.npmjs.org/acorn-jsx/-/acorn-jsx-5.3.1.tgz",
+      "integrity": "sha512-K0Ptm/47OKfQRpNQ2J/oIN/3QYiK6FwW+eJbILhsdxh2WTLdl+30o8aGdTbm5JbffpFFAg/g+zi1E+jvJha5ng==",
+      "dev": true
+    },
     "agent-base": {
       "version": "5.1.1",
       "resolved": "https://registry.npmjs.org/agent-base/-/agent-base-5.1.1.tgz",
@@ -285,6 +332,18 @@
         "indent-string": "^4.0.0"
       }
     },
+    "ajv": {
+      "version": "6.12.6",
+      "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.12.6.tgz",
+      "integrity": "sha512-j3fVLgvTo527anyYyJOGTYJbG+vnnQYvE0m5mmkc1TK+nxAppkCLMIL0aZ4dblVCNoGShhm+kzE4ZUykBoMg4g==",
+      "dev": true,
+      "requires": {
+        "fast-deep-equal": "^3.1.1",
+        "fast-json-stable-stringify": "^2.0.0",
+        "json-schema-traverse": "^0.4.1",
+        "uri-js": "^4.2.2"
+      }
+    },
     "ansi-colors": {
       "version": "4.1.1",
       "resolved": "https://registry.npmjs.org/ansi-colors/-/ansi-colors-4.1.1.tgz",
@@ -358,6 +417,34 @@
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       "dev": true
     },
+    "astral-regex": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/astral-regex/-/astral-regex-1.0.0.tgz",
+      "integrity": "sha512-+Ryf6g3BKoRc7jfp7ad8tM4TtMiaWvbF/1/sQcZPkkS7ag3D5nMBCe2UfOTONtAkaG0tO0ij3C5Lwmf1EiyjHg==",
+      "dev": true
+    },
+    "babel-eslint": {
+      "version": "10.1.0",
+      "resolved": "https://registry.npmjs.org/babel-eslint/-/babel-eslint-10.1.0.tgz",
+      "integrity": "sha512-ifWaTHQ0ce+448CYop8AdrQiBsGrnC+bMgfyKFdi6EsPLTAWG+QfyDeM6OH+FmWnKvEq5NnBMLvlBUPKQZoDSg==",
+      "dev": true,
+      "requires": {
+        "@babel/code-frame": "^7.0.0",
+        "@babel/parser": "^7.7.0",
+        "@babel/traverse": "^7.7.0",
+        "@babel/types": "^7.7.0",
+        "eslint-visitor-keys": "^1.0.0",
+        "resolve": "^1.12.0"
+      },
+      "dependencies": {
+        "eslint-visitor-keys": {
+          "version": "1.3.0",
+          "resolved": "https://registry.npmjs.org/eslint-visitor-keys/-/eslint-visitor-keys-1.3.0.tgz",
+          "integrity": "sha512-6J72N8UNa462wa/KFODt/PJ3IU60SDpC3QXC1Hjc1BXXpfL2C9R5+AU7jhe0F6GREqVMh4Juu+NY7xn+6dipUQ==",
+          "dev": true
+        }
+      }
+    },
     "balanced-match": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.0.tgz",
@@ -434,6 +521,12 @@
         "write-file-atomic": "^3.0.0"
       }
     },
+    "callsites": {
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/callsites/-/callsites-3.1.0.tgz",
+      "integrity": "sha512-P8BjAsXvZS+VIDUI11hHCQEv74YT67YUi5JJFNWIqL235sBmjX4+qx9Muvls5ivyNENctx46xQLQ3aTuE7ssaQ==",
+      "dev": true
+    },
     "camelcase": {
       "version": "5.3.1",
       "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-5.3.1.tgz",
@@ -588,6 +681,12 @@
         "type-detect": "^4.0.0"
       }
     },
+    "deep-is": {
+      "version": "0.1.3",
+      "resolved": "https://registry.npmjs.org/deep-is/-/deep-is-0.1.3.tgz",
+      "integrity": "sha1-s2nW+128E+7PUk+RsHD+7cNXzzQ=",
+      "dev": true
+    },
     "default-require-extensions": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/default-require-extensions/-/default-require-extensions-3.0.0.tgz",
@@ -617,6 +716,15 @@
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       "dev": true
     },
+    "doctrine": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/doctrine/-/doctrine-3.0.0.tgz",
+      "integrity": "sha512-yS+Q5i3hBf7GBkd4KG8a7eBNNWNGLTaEwwYWUijIYM7zrlYDM0BFXHjjPWlWZ1Rg7UaddZeIDmi9jF3HmqiQ2w==",
+      "dev": true,
+      "requires": {
+        "esutils": "^2.0.2"
+      }
+    },
     "dotenv": {
       "version": "8.2.0",
       "resolved": "https://registry.npmjs.org/dotenv/-/dotenv-8.2.0.tgz",
@@ -637,6 +745,15 @@
         "once": "^1.4.0"
       }
     },
+    "enquirer": {
+      "version": "2.3.6",
+      "resolved": "https://registry.npmjs.org/enquirer/-/enquirer-2.3.6.tgz",
+      "integrity": "sha512-yjNnPr315/FjS4zIsUxYguYUPP2e1NK4d7E7ZOLiyYCcbFBiTMyID+2wvm2w6+pZ/odMA7cRkjhsPbltwBOrLg==",
+      "dev": true,
+      "requires": {
+        "ansi-colors": "^4.1.1"
+      }
+    },
     "es-abstract": {
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       "resolved": "https://registry.npmjs.org/es-abstract/-/es-abstract-1.17.6.tgz",
@@ -700,12 +817,227 @@
       "integrity": "sha1-G2HAViGQqN/2rjuyzwIAyhMLhtQ=",
       "dev": true
     },
+    "eslint": {
+      "version": "7.12.1",
+      "resolved": "https://registry.npmjs.org/eslint/-/eslint-7.12.1.tgz",
+      "integrity": "sha512-HlMTEdr/LicJfN08LB3nM1rRYliDXOmfoO4vj39xN6BLpFzF00hbwBoqHk8UcJ2M/3nlARZWy/mslvGEuZFvsg==",
+      "dev": true,
+      "requires": {
+        "@babel/code-frame": "^7.0.0",
+        "@eslint/eslintrc": "^0.2.1",
+        "ajv": "^6.10.0",
+        "chalk": "^4.0.0",
+        "cross-spawn": "^7.0.2",
+        "debug": "^4.0.1",
+        "doctrine": "^3.0.0",
+        "enquirer": "^2.3.5",
+        "eslint-scope": "^5.1.1",
+        "eslint-utils": "^2.1.0",
+        "eslint-visitor-keys": "^2.0.0",
+        "espree": "^7.3.0",
+        "esquery": "^1.2.0",
+        "esutils": "^2.0.2",
+        "file-entry-cache": "^5.0.1",
+        "functional-red-black-tree": "^1.0.1",
+        "glob-parent": "^5.0.0",
+        "globals": "^12.1.0",
+        "ignore": "^4.0.6",
+        "import-fresh": "^3.0.0",
+        "imurmurhash": "^0.1.4",
+        "is-glob": "^4.0.0",
+        "js-yaml": "^3.13.1",
+        "json-stable-stringify-without-jsonify": "^1.0.1",
+        "levn": "^0.4.1",
+        "lodash": "^4.17.19",
+        "minimatch": "^3.0.4",
+        "natural-compare": "^1.4.0",
+        "optionator": "^0.9.1",
+        "progress": "^2.0.0",
+        "regexpp": "^3.1.0",
+        "semver": "^7.2.1",
+        "strip-ansi": "^6.0.0",
+        "strip-json-comments": "^3.1.0",
+        "table": "^5.2.3",
+        "text-table": "^0.2.0",
+        "v8-compile-cache": "^2.0.3"
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+          "version": "4.3.0",
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+      "resolved": "https://registry.npmjs.org/estraverse/-/estraverse-4.3.0.tgz",
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+      "resolved": "https://registry.npmjs.org/esutils/-/esutils-2.0.3.tgz",
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@@ -722,6 +1054,24 @@
         "yauzl": "^2.10.0"
       }
     },
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diff --git a/package.json b/package.json
index c14afea..2836d66 100644
--- a/package.json
+++ b/package.json
@@ -38,8 +38,10 @@
     "puppeteer": "^5.3.1"
   },
   "devDependencies": {
+    "babel-eslint": "^10.1.0",
     "chai": "^4.2.0",
     "dotenv": "^8.2.0",
+    "eslint": "^7.12.1",
     "lodash": "^4.17.20",
     "mocha": "^8.1.3",
     "nyc": "^15.1.0",