diff --git a/.huskyrc b/.huskyrc
index 700d7e4..bd3f3cb 100644
--- a/.huskyrc
+++ b/.huskyrc
@@ -1,5 +1,5 @@
 {
   "hooks": {
-    "pre-commit": "npm run validate"
+    "pre-commit": "npm run check-types && lint-staged"
   }
 }
diff --git a/.lintstagedrc b/.lintstagedrc
new file mode 100644
index 0000000..c5aca28
--- /dev/null
+++ b/.lintstagedrc
@@ -0,0 +1,9 @@
+{
+  "*.js": [
+    "eslint"
+  ],
+  "*.+(js|json|ts)": [
+    "prettier --write",
+    "git add"
+  ]
+}
diff --git a/package-lock.json b/package-lock.json
index 4363fe5..f558612 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -839,18 +839,82 @@
         "to-fast-properties": "^2.0.0"
       }
     },
+    "@nodelib/fs.scandir": {
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+      "resolved": "https://registry.npmjs.org/@nodelib/fs.scandir/-/fs.scandir-2.1.1.tgz",
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+      "dev": true,
+      "requires": {
+        "@nodelib/fs.stat": "2.0.1",
+        "run-parallel": "^1.1.9"
+      }
+    },
+    "@nodelib/fs.stat": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/@nodelib/fs.stat/-/fs.stat-2.0.1.tgz",
+      "integrity": "sha512-+RqhBlLn6YRBGOIoVYthsG0J9dfpO79eJyN7BYBkZJtfqrBwf2KK+rD/M/yjZR6WBmIhAgOV7S60eCgaSWtbFw==",
+      "dev": true
+    },
+    "@nodelib/fs.walk": {
+      "version": "1.2.2",
+      "resolved": "https://registry.npmjs.org/@nodelib/fs.walk/-/fs.walk-1.2.2.tgz",
+      "integrity": "sha512-J/DR3+W12uCzAJkw7niXDcqcKBg6+5G5Q/ZpThpGNzAUz70eOR6RV4XnnSN01qHZiVl0eavoxJsBypQoKsV2QQ==",
+      "dev": true,
+      "requires": {
+        "@nodelib/fs.scandir": "2.1.1",
+        "fastq": "^1.6.0"
+      }
+    },
+    "@samverschueren/stream-to-observable": {
+      "version": "0.3.0",
+      "resolved": "https://registry.npmjs.org/@samverschueren/stream-to-observable/-/stream-to-observable-0.3.0.tgz",
+      "integrity": "sha512-MI4Xx6LHs4Webyvi6EbspgyAb4D2Q2VtnCQ1blOJcoLS6mVa8lNN2rkIy1CVxfTUpoyIbCTkXES1rLXztFD1lg==",
+      "dev": true,
+      "requires": {
+        "any-observable": "^0.3.0"
+      }
+    },
     "@types/eslint-visitor-keys": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/@types/eslint-visitor-keys/-/eslint-visitor-keys-1.0.0.tgz",
       "integrity": "sha512-OCutwjDZ4aFS6PB1UZ988C4YgwlBHJd6wCeQqaLdmadZ/7e+w79+hbMUFC1QXDNCmdyoRfAFdm0RypzwR+Qpag==",
       "dev": true
     },
+    "@types/events": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/@types/events/-/events-3.0.0.tgz",
+      "integrity": "sha512-EaObqwIvayI5a8dCzhFrjKzVwKLxjoG9T6Ppd5CEo07LRKfQ8Yokw54r5+Wq7FaBQ+yXRvQAYPrHwya1/UFt9g==",
+      "dev": true
+    },
+    "@types/glob": {
+      "version": "7.1.1",
+      "resolved": "https://registry.npmjs.org/@types/glob/-/glob-7.1.1.tgz",
+      "integrity": "sha512-1Bh06cbWJUHMC97acuD6UMG29nMt0Aqz1vF3guLfG+kHHJhy3AyohZFFxYk2f7Q1SQIrNwvncxAE0N/9s70F2w==",
+      "dev": true,
+      "requires": {
+        "@types/events": "*",
+        "@types/minimatch": "*",
+        "@types/node": "*"
+      }
+    },
     "@types/json-schema": {
       "version": "7.0.3",
       "resolved": "https://registry.npmjs.org/@types/json-schema/-/json-schema-7.0.3.tgz",
       "integrity": "sha512-Il2DtDVRGDcqjDtE+rF8iqg1CArehSK84HZJCT7AMITlyXRBpuPhqGLDQMowraqqu1coEaimg4ZOqggt6L6L+A==",
       "dev": true
     },
+    "@types/minimatch": {
+      "version": "3.0.3",
+      "resolved": "https://registry.npmjs.org/@types/minimatch/-/minimatch-3.0.3.tgz",
+      "integrity": "sha512-tHq6qdbT9U1IRSGf14CL0pUlULksvY9OZ+5eEgl1N7t+OA3tGvNpxJCzuKQlsNgCVwbAs670L1vcVQi8j9HjnA==",
+      "dev": true
+    },
+    "@types/node": {
+      "version": "12.6.8",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-12.6.8.tgz",
+      "integrity": "sha512-aX+gFgA5GHcDi89KG5keey2zf0WfZk/HAQotEamsK2kbey+8yGKcson0hbK8E+v0NArlCJQCqMP161YhV6ZXLg==",
+      "dev": true
+    },
     "@types/normalize-package-data": {
       "version": "2.4.0",
       "resolved": "https://registry.npmjs.org/@types/normalize-package-data/-/normalize-package-data-2.4.0.tgz",
@@ -948,6 +1012,12 @@
         "color-convert": "^1.9.0"
       }
     },
+    "any-observable": {
+      "version": "0.3.0",
+      "resolved": "https://registry.npmjs.org/any-observable/-/any-observable-0.3.0.tgz",
+      "integrity": "sha512-/FQM1EDkTsf63Ub2C6O7GuYFDsSXUwsaZDurV0np41ocwq0jthUAYCmhBX9f+KwlaCgIuWyr/4WlUQUBfKfZog==",
+      "dev": true
+    },
     "anymatch": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/anymatch/-/anymatch-2.0.0.tgz",
@@ -1112,6 +1182,12 @@
       "dev": true,
       "optional": true
     },
+    "array-union": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/array-union/-/array-union-2.1.0.tgz",
+      "integrity": "sha512-HGyxoOTYUyCM6stUe6EJgnd4EoewAI7zMdfqO+kGjnlZmBDz/cR5pf8r/cR4Wq60sL/p0IkcjUEEPwS3GFrIyw==",
+      "dev": true
+    },
     "array-unique": {
       "version": "0.3.2",
       "resolved": "https://registry.npmjs.org/array-unique/-/array-unique-0.3.2.tgz",
@@ -1414,12 +1490,71 @@
         "restore-cursor": "^2.0.0"
       }
     },
+    "cli-truncate": {
+      "version": "0.2.1",
+      "resolved": "https://registry.npmjs.org/cli-truncate/-/cli-truncate-0.2.1.tgz",
+      "integrity": "sha1-nxXPuwcFAFNpIWxiasfQWrkN1XQ=",
+      "dev": true,
+      "requires": {
+        "slice-ansi": "0.0.4",
+        "string-width": "^1.0.1"
+      },
+      "dependencies": {
+        "ansi-regex": {
+          "version": "2.1.1",
+          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-2.1.1.tgz",
+          "integrity": "sha1-w7M6te42DYbg5ijwRorn7yfWVN8=",
+          "dev": true
+        },
+        "is-fullwidth-code-point": {
+          "version": "1.0.0",
+          "resolved": "https://registry.npmjs.org/is-fullwidth-code-point/-/is-fullwidth-code-point-1.0.0.tgz",
+          "integrity": "sha1-754xOG8DGn8NZDr4L95QxFfvAMs=",
+          "dev": true,
+          "requires": {
+            "number-is-nan": "^1.0.0"
+          }
+        },
+        "slice-ansi": {
+          "version": "0.0.4",
+          "resolved": "https://registry.npmjs.org/slice-ansi/-/slice-ansi-0.0.4.tgz",
+          "integrity": "sha1-7b+JA/ZvfOL46v1s7tZeJkyDGzU=",
+          "dev": true
+        },
+        "string-width": {
+          "version": "1.0.2",
+          "resolved": "https://registry.npmjs.org/string-width/-/string-width-1.0.2.tgz",
+          "integrity": "sha1-EYvfW4zcUaKn5w0hHgfisLmxB9M=",
+          "dev": true,
+          "requires": {
+            "code-point-at": "^1.0.0",
+            "is-fullwidth-code-point": "^1.0.0",
+            "strip-ansi": "^3.0.0"
+          }
+        },
+        "strip-ansi": {
+          "version": "3.0.1",
+          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
+          "integrity": "sha1-ajhfuIU9lS1f8F0Oiq+UJ43GPc8=",
+          "dev": true,
+          "requires": {
+            "ansi-regex": "^2.0.0"
+          }
+        }
+      }
+    },
     "cli-width": {
       "version": "2.2.0",
       "resolved": "https://registry.npmjs.org/cli-width/-/cli-width-2.2.0.tgz",
       "integrity": "sha1-/xnt6Kml5XkyQUewwR8PvLq+1jk=",
       "dev": true
     },
+    "code-point-at": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/code-point-at/-/code-point-at-1.1.0.tgz",
+      "integrity": "sha1-DQcLTQQ6W+ozovGkDi7bPZpMz3c=",
+      "dev": true
+    },
     "collection-visit": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/collection-visit/-/collection-visit-1.0.0.tgz",
@@ -1556,6 +1691,12 @@
         "which": "^1.2.9"
       }
     },
+    "date-fns": {
+      "version": "1.30.1",
+      "resolved": "https://registry.npmjs.org/date-fns/-/date-fns-1.30.1.tgz",
+      "integrity": "sha512-hBSVCvSmWC+QypYObzwGOd9wqdDpOt+0wl0KbU+R+uuZBS1jN8VsD1ss3irQDknRj5NvxiTF6oj/nDRnN/UQNw==",
+      "dev": true
+    },
     "debug": {
       "version": "2.6.9",
       "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
@@ -1573,6 +1714,12 @@
       "dev": true,
       "optional": true
     },
+    "dedent": {
+      "version": "0.7.0",
+      "resolved": "https://registry.npmjs.org/dedent/-/dedent-0.7.0.tgz",
+      "integrity": "sha1-JJXduvbrh0q7Dhvp3yLS5aVEMmw=",
+      "dev": true
+    },
     "deep-is": {
       "version": "0.1.3",
       "resolved": "https://registry.npmjs.org/deep-is/-/deep-is-0.1.3.tgz",
@@ -1633,6 +1780,28 @@
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       }
     },
+    "del": {
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/del/-/del-5.0.0.tgz",
+      "integrity": "sha512-TfU3nUY0WDIhN18eq+pgpbLY9AfL5RfiE9czKaTSolc6aK7qASXfDErvYgjV1UqCR4sNXDoxO0/idPmhDUt2Sg==",
+      "dev": true,
+      "requires": {
+        "globby": "^10.0.0",
+        "is-path-cwd": "^2.0.0",
+        "is-path-in-cwd": "^2.0.0",
+        "p-map": "^2.0.0",
+        "rimraf": "^2.6.3"
+      }
+    },
+    "dir-glob": {
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/dir-glob/-/dir-glob-3.0.1.tgz",
+      "integrity": "sha512-WkrWp9GR4KXfKGYzOLmTuGVi1UWFfws377n9cc55/tb6DuqyF6pcQ5AbiHEshaDpY9v6oaSr2XCDidGmMwdzIA==",
+      "dev": true,
+      "requires": {
+        "path-type": "^4.0.0"
+      }
+    },
     "doctrine": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/doctrine/-/doctrine-3.0.0.tgz",
@@ -1648,6 +1817,12 @@
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       "dev": true
     },
+    "elegant-spinner": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/elegant-spinner/-/elegant-spinner-1.0.1.tgz",
+      "integrity": "sha1-2wQ1IcldfjA/2PNFvtwzSc+wcp4=",
+      "dev": true
+    },
     "emoji-regex": {
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       "resolved": "https://registry.npmjs.org/emoji-regex/-/emoji-regex-7.0.3.tgz",
@@ -2010,6 +2185,74 @@
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       "dev": true
     },
+    "fast-glob": {
+      "version": "3.0.4",
+      "resolved": "https://registry.npmjs.org/fast-glob/-/fast-glob-3.0.4.tgz",
+      "integrity": "sha512-wkIbV6qg37xTJwqSsdnIphL1e+LaGz4AIQqr00mIubMaEhv1/HEmJ0uuCGZRNRUkZZmOB5mJKO0ZUTVq+SxMQg==",
+      "dev": true,
+      "requires": {
+        "@nodelib/fs.stat": "^2.0.1",
+        "@nodelib/fs.walk": "^1.2.1",
+        "glob-parent": "^5.0.0",
+        "is-glob": "^4.0.1",
+        "merge2": "^1.2.3",
+        "micromatch": "^4.0.2"
+      },
+      "dependencies": {
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+          "version": "3.0.2",
+          "resolved": "https://registry.npmjs.org/braces/-/braces-3.0.2.tgz",
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+          "dev": true,
+          "requires": {
+            "fill-range": "^7.0.1"
+          }
+        },
+        "fill-range": {
+          "version": "7.0.1",
+          "resolved": "https://registry.npmjs.org/fill-range/-/fill-range-7.0.1.tgz",
+          "integrity": "sha512-qOo9F+dMUmC2Lcb4BbVvnKJxTPjCm+RRpe4gDuGrzkL7mEVl/djYSu2OdQ2Pa302N4oqkSg9ir6jaLWJ2USVpQ==",
+          "dev": true,
+          "requires": {
+            "to-regex-range": "^5.0.1"
+          }
+        },
+        "glob-parent": {
+          "version": "5.0.0",
+          "resolved": "https://registry.npmjs.org/glob-parent/-/glob-parent-5.0.0.tgz",
+          "integrity": "sha512-Z2RwiujPRGluePM6j699ktJYxmPpJKCfpGA13jz2hmFZC7gKetzrWvg5KN3+OsIFmydGyZ1AVwERCq1w/ZZwRg==",
+          "dev": true,
+          "requires": {
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+          }
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+        "is-number": {
+          "version": "7.0.0",
+          "resolved": "https://registry.npmjs.org/is-number/-/is-number-7.0.0.tgz",
+          "integrity": "sha512-41Cifkg6e8TylSpdtTpeLVMqvSBEVzTttHvERD741+pnZ8ANv0004MRL43QKPDlK9cGvNp6NZWZUBlbGXYxxng==",
+          "dev": true
+        },
+        "micromatch": {
+          "version": "4.0.2",
+          "resolved": "https://registry.npmjs.org/micromatch/-/micromatch-4.0.2.tgz",
+          "integrity": "sha512-y7FpHSbMUMoyPbYUSzO6PaZ6FyRnQOpHuKwbo1G+Knck95XVU4QAiKdGEnj5wwoS7PlOgthX/09u5iFJ+aYf5Q==",
+          "dev": true,
+          "requires": {
+            "braces": "^3.0.1",
+            "picomatch": "^2.0.5"
+          }
+        },
+        "to-regex-range": {
+          "version": "5.0.1",
+          "resolved": "https://registry.npmjs.org/to-regex-range/-/to-regex-range-5.0.1.tgz",
+          "integrity": "sha512-65P7iz6X5yEr1cwcgvQxbbIw7Uk3gOy5dIdtZ4rDveLqhrdJP+Li/Hx6tyK0NEb+2GCyneCMJiGqrADCSNk8sQ==",
+          "dev": true,
+          "requires": {
+            "is-number": "^7.0.0"
+          }
+        }
+      }
+    },
     "fast-json-stable-stringify": {
       "version": "2.0.0",
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@@ -2022,6 +2265,15 @@
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       "dev": true
     },
+    "fastq": {
+      "version": "1.6.0",
+      "resolved": "https://registry.npmjs.org/fastq/-/fastq-1.6.0.tgz",
+      "integrity": "sha512-jmxqQ3Z/nXoeyDmWAzF9kH1aGZSis6e/SbfPmJpUnyZ0ogr6iscHQaml4wsEepEWSdtmpy+eVXmCRIMpxaXqOA==",
+      "dev": true,
+      "requires": {
+        "reusify": "^1.0.0"
+      }
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     "figures": {
       "version": "2.0.0",
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@@ -2681,6 +2933,12 @@
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       "dev": true
     },
+    "get-own-enumerable-property-symbols": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/get-own-enumerable-property-symbols/-/get-own-enumerable-property-symbols-3.0.0.tgz",
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+    },
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@@ -2746,12 +3004,59 @@
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       "dev": true
     },
+    "globby": {
+      "version": "10.0.1",
+      "resolved": "https://registry.npmjs.org/globby/-/globby-10.0.1.tgz",
+      "integrity": "sha512-sSs4inE1FB2YQiymcmTv6NWENryABjUNPeWhOvmn4SjtKybglsyPZxFB3U1/+L1bYi0rNZDqCLlHyLYDl1Pq5A==",
+      "dev": true,
+      "requires": {
+        "@types/glob": "^7.1.1",
+        "array-union": "^2.1.0",
+        "dir-glob": "^3.0.1",
+        "fast-glob": "^3.0.3",
+        "glob": "^7.1.3",
+        "ignore": "^5.1.1",
+        "merge2": "^1.2.3",
+        "slash": "^3.0.0"
+      },
+      "dependencies": {
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+          "version": "5.1.2",
+          "resolved": "https://registry.npmjs.org/ignore/-/ignore-5.1.2.tgz",
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+        },
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+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/slash/-/slash-3.0.0.tgz",
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+        }
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       "dev": true
     },
+    "has-ansi": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/has-ansi/-/has-ansi-2.0.0.tgz",
+      "integrity": "sha1-NPUEnOHs3ysGSa8+8k5F7TVBbZE=",
+      "dev": true,
+      "requires": {
+        "ansi-regex": "^2.0.0"
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+      "dependencies": {
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+          "version": "2.1.1",
+          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-2.1.1.tgz",
+          "integrity": "sha1-w7M6te42DYbg5ijwRorn7yfWVN8=",
+          "dev": true
+        }
+      }
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@@ -2891,6 +3196,12 @@
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       "dev": true
     },
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+      "integrity": "sha512-gDKb8aZMDeD/tZWs9P6+q0J9Mwkdl6xMV8TjnGP3qJVJ06bdMgkbBlLU8IdfOsIsFz2BW1rNVT3XuNEl8zPAvw==",
+      "dev": true
+    },
+    "picomatch": {
+      "version": "2.0.7",
+      "resolved": "https://registry.npmjs.org/picomatch/-/picomatch-2.0.7.tgz",
+      "integrity": "sha512-oLHIdio3tZ0qH76NybpeneBhYVj0QFTfXEFTc/B3zKQspYfYYkWYgFsmzo+4kvId/bQRcNkVeguI3y+CD22BtA==",
+      "dev": true
+    },
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       "resolved": "https://registry.npmjs.org/pkg-dir/-/pkg-dir-4.2.0.tgz",
@@ -4017,6 +4702,12 @@
       "dev": true,
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     },
+    "reusify": {
+      "version": "1.0.4",
+      "resolved": "https://registry.npmjs.org/reusify/-/reusify-1.0.4.tgz",
+      "integrity": "sha512-U9nH88a3fc/ekCF1l0/UP1IosiuIjyTh7hBvXVMHYgVcfGvt897Xguj2UOLDeI5BG2m7/uwyaLVT6fbtCwTyzw==",
+      "dev": true
+    },
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       "resolved": "https://registry.npmjs.org/rimraf/-/rimraf-2.6.3.tgz",
@@ -4041,6 +4732,12 @@
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       "dev": true
     },
+    "run-parallel": {
+      "version": "1.1.9",
+      "resolved": "https://registry.npmjs.org/run-parallel/-/run-parallel-1.1.9.tgz",
+      "integrity": "sha512-DEqnSRTDw/Tc3FXf49zedI638Z9onwUotBMiUFKmrO2sdFKIbXamXGQ3Axd4qgphxKB4kw/qP1w5kTxnfU1B9Q==",
+      "dev": true
+    },
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       "resolved": "https://registry.npmjs.org/rxjs/-/rxjs-6.5.2.tgz",
@@ -4356,6 +5053,12 @@
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+    "string-argv": {
+      "version": "0.3.0",
+      "resolved": "https://registry.npmjs.org/string-argv/-/string-argv-0.3.0.tgz",
+      "integrity": "sha512-NGZHq3nkSXVtGZXTBjFru3MNfoZyIzN25T7BmvdgnSC0LCJczAGLLMQLyjywSIaAoqSemgLzBRHOsnrHbt60+Q==",
+      "dev": true
+    },
     "string-width": {
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       "resolved": "https://registry.npmjs.org/string-width/-/string-width-2.1.1.tgz",
@@ -4387,6 +5090,17 @@
         "safe-buffer": "~5.1.0"
       }
     },
+    "stringify-object": {
+      "version": "3.3.0",
+      "resolved": "https://registry.npmjs.org/stringify-object/-/stringify-object-3.3.0.tgz",
+      "integrity": "sha512-rHqiFh1elqCQ9WPLIC8I0Q/g/wj5J1eMkyoiD6eoQApWHP0FtlK7rqnhmabL5VUY9JQCcqwwvlOaSuutekgyrw==",
+      "dev": true,
+      "requires": {
+        "get-own-enumerable-property-symbols": "^3.0.0",
+        "is-obj": "^1.0.1",
+        "is-regexp": "^1.0.0"
+      }
+    },
     "strip-ansi": {
       "version": "5.2.0",
       "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-5.2.0.tgz",
@@ -4410,6 +5124,12 @@
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       "dev": true
     },
+    "strip-final-newline": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/strip-final-newline/-/strip-final-newline-2.0.0.tgz",
+      "integrity": "sha512-BrpvfNAE3dcvq7ll3xVumzjKjZQ5tI1sEUIKr3Uoks0XUl45St3FlatVqef9prk4jRDzhW6WZg+3bk93y6pLjA==",
+      "dev": true
+    },
     "strip-json-comments": {
       "version": "3.0.1",
       "resolved": "https://registry.npmjs.org/strip-json-comments/-/strip-json-comments-3.0.1.tgz",
@@ -4425,6 +5145,12 @@
         "has-flag": "^3.0.0"
       }
     },
+    "symbol-observable": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/symbol-observable/-/symbol-observable-1.2.0.tgz",
+      "integrity": "sha512-e900nM8RRtGhlV36KGEU9k65K3mPb1WV70OdjfxlG2EAuM1noi/E/BaW/uMhL7bPEssK8QV57vN3esixjUvcXQ==",
+      "dev": true
+    },
     "table": {
       "version": "5.4.5",
       "resolved": "https://registry.npmjs.org/table/-/table-5.4.5.tgz",
@@ -4718,6 +5444,27 @@
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       "dev": true
     },
+    "wrap-ansi": {
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-3.0.1.tgz",
+      "integrity": "sha1-KIoE2H7aXChuBg3+jxNc6NAH+Lo=",
+      "dev": true,
+      "requires": {
+        "string-width": "^2.1.1",
+        "strip-ansi": "^4.0.0"
+      },
+      "dependencies": {
+        "strip-ansi": {
+          "version": "4.0.0",
+          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-4.0.0.tgz",
+          "integrity": "sha1-qEeQIusaw2iocTibY1JixQXuNo8=",
+          "dev": true,
+          "requires": {
+            "ansi-regex": "^3.0.0"
+          }
+        }
+      }
+    },
     "wrappy": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
diff --git a/package.json b/package.json
index 39f4734..ef0733b 100644
--- a/package.json
+++ b/package.json
@@ -21,6 +21,7 @@
     "eslint": "^6.1.0",
     "eslint-config-prettier": "^6.0.0",
     "husky": "^3.0.2",
+    "lint-staged": "^9.2.1",
     "prettier": "^1.18.2",
     "typescript": "^3.5.3"
   }