diff --git a/package-lock.json b/package-lock.json
index a97c44e..11f4709 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -383,6 +383,32 @@
         "@types/yargs": "^13.0.0"
       }
     },
+    "@nodelib/fs.scandir": {
+      "version": "2.1.3",
+      "resolved": "https://registry.npmjs.org/@nodelib/fs.scandir/-/fs.scandir-2.1.3.tgz",
+      "integrity": "sha512-eGmwYQn3gxo4r7jdQnkrrN6bY478C3P+a/y72IJukF8LjB6ZHeB3c+Ehacj3sYeSmUXGlnA67/PmbM9CVwL7Dw==",
+      "dev": true,
+      "requires": {
+        "@nodelib/fs.stat": "2.0.3",
+        "run-parallel": "^1.1.9"
+      }
+    },
+    "@nodelib/fs.stat": {
+      "version": "2.0.3",
+      "resolved": "https://registry.npmjs.org/@nodelib/fs.stat/-/fs.stat-2.0.3.tgz",
+      "integrity": "sha512-bQBFruR2TAwoevBEd/NWMoAAtNGzTRgdrqnYCc7dhzfoNvqPzLyqlEQnzZ3kVnNrSp25iyxE00/3h2fqGAGArA==",
+      "dev": true
+    },
+    "@nodelib/fs.walk": {
+      "version": "1.2.4",
+      "resolved": "https://registry.npmjs.org/@nodelib/fs.walk/-/fs.walk-1.2.4.tgz",
+      "integrity": "sha512-1V9XOY4rDW0rehzbrcqAmHnz8e7SKvX27gh8Gt2WgB0+pdzdiLV83p72kZPU+jvMbS1qU5mauP2iOvO8rhmurQ==",
+      "dev": true,
+      "requires": {
+        "@nodelib/fs.scandir": "2.1.3",
+        "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",
@@ -581,33 +607,46 @@
       "dev": true
     },
     "@typescript-eslint/eslint-plugin": {
-      "version": "2.27.0",
-      "resolved": "https://registry.npmjs.org/@typescript-eslint/eslint-plugin/-/eslint-plugin-2.27.0.tgz",
-      "integrity": "sha512-/my+vVHRN7zYgcp0n4z5A6HAK7bvKGBiswaM5zIlOQczsxj/aiD7RcgD+dvVFuwFaGh5+kM7XA6Q6PN0bvb1tw==",
+      "version": "4.6.0",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/eslint-plugin/-/eslint-plugin-4.6.0.tgz",
+      "integrity": "sha512-1+419X+Ynijytr1iWI+/IcX/kJryc78YNpdaXR1aRO1sU3bC0vZrIAF1tIX7rudVI84W7o7M4zo5p1aVt70fAg==",
       "dev": true,
       "requires": {
-        "@typescript-eslint/experimental-utils": "2.27.0",
+        "@typescript-eslint/experimental-utils": "4.6.0",
+        "@typescript-eslint/scope-manager": "4.6.0",
+        "debug": "^4.1.1",
         "functional-red-black-tree": "^1.0.1",
         "regexpp": "^3.0.0",
+        "semver": "^7.3.2",
         "tsutils": "^3.17.1"
+      },
+      "dependencies": {
+        "semver": {
+          "version": "7.3.2",
+          "resolved": "https://registry.npmjs.org/semver/-/semver-7.3.2.tgz",
+          "integrity": "sha512-OrOb32TeeambH6UrhtShmF7CRDqhL6/5XpPNp2DuRH6+9QLw/orhp72j87v8Qa1ScDkvrrBNpZcDejAirJmfXQ==",
+          "dev": true
+        }
       }
     },
     "@typescript-eslint/experimental-utils": {
-      "version": "2.27.0",
-      "resolved": "https://registry.npmjs.org/@typescript-eslint/experimental-utils/-/experimental-utils-2.27.0.tgz",
-      "integrity": "sha512-vOsYzjwJlY6E0NJRXPTeCGqjv5OHgRU1kzxHKWJVPjDYGbPgLudBXjIlc+OD1hDBZ4l1DLbOc5VjofKahsu9Jw==",
+      "version": "4.6.0",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/experimental-utils/-/experimental-utils-4.6.0.tgz",
+      "integrity": "sha512-pnh6Beh2/4xjJVNL+keP49DFHk3orDHHFylSp3WEjtgW3y1U+6l+jNnJrGlbs6qhAz5z96aFmmbUyKhunXKvKw==",
       "dev": true,
       "requires": {
         "@types/json-schema": "^7.0.3",
-        "@typescript-eslint/typescript-estree": "2.27.0",
+        "@typescript-eslint/scope-manager": "4.6.0",
+        "@typescript-eslint/types": "4.6.0",
+        "@typescript-eslint/typescript-estree": "4.6.0",
         "eslint-scope": "^5.0.0",
         "eslint-utils": "^2.0.0"
       },
       "dependencies": {
         "eslint-utils": {
-          "version": "2.0.0",
-          "resolved": "https://registry.npmjs.org/eslint-utils/-/eslint-utils-2.0.0.tgz",
-          "integrity": "sha512-0HCPuJv+7Wv1bACm8y5/ECVfYdfsAm9xmVb7saeFlxjPYALefjhbYoCkBjPdPzGH8wWyTpAez82Fh3VKYEZ8OA==",
+          "version": "2.1.0",
+          "resolved": "https://registry.npmjs.org/eslint-utils/-/eslint-utils-2.1.0.tgz",
+          "integrity": "sha512-w94dQYoauyvlDc43XnGB8lU3Zt713vNChgt4EWwhXAP2XkBvndfxF0AgIqKOOasjPIPzj9JqgwkwbCYD0/V3Zg==",
           "dev": true,
           "requires": {
             "eslint-visitor-keys": "^1.1.0"
@@ -616,36 +655,71 @@
       }
     },
     "@typescript-eslint/parser": {
-      "version": "2.27.0",
-      "resolved": "https://registry.npmjs.org/@typescript-eslint/parser/-/parser-2.27.0.tgz",
-      "integrity": "sha512-HFUXZY+EdwrJXZo31DW4IS1ujQW3krzlRjBrFRrJcMDh0zCu107/nRfhk/uBasO8m0NVDbBF5WZKcIUMRO7vPg==",
+      "version": "4.6.0",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/parser/-/parser-4.6.0.tgz",
+      "integrity": "sha512-Dj6NJxBhbdbPSZ5DYsQqpR32MwujF772F2H3VojWU6iT4AqL4BKuoNWOPFCoSZvCcADDvQjDpa6OLDAaiZPz2Q==",
       "dev": true,
       "requires": {
-        "@types/eslint-visitor-keys": "^1.0.0",
-        "@typescript-eslint/experimental-utils": "2.27.0",
-        "@typescript-eslint/typescript-estree": "2.27.0",
-        "eslint-visitor-keys": "^1.1.0"
+        "@typescript-eslint/scope-manager": "4.6.0",
+        "@typescript-eslint/types": "4.6.0",
+        "@typescript-eslint/typescript-estree": "4.6.0",
+        "debug": "^4.1.1"
+      }
+    },
+    "@typescript-eslint/scope-manager": {
+      "version": "4.6.0",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/scope-manager/-/scope-manager-4.6.0.tgz",
+      "integrity": "sha512-uZx5KvStXP/lwrMrfQQwDNvh2ppiXzz5TmyTVHb+5TfZ3sUP7U1onlz3pjoWrK9konRyFe1czyxObWTly27Ang==",
+      "dev": true,
+      "requires": {
+        "@typescript-eslint/types": "4.6.0",
+        "@typescript-eslint/visitor-keys": "4.6.0"
       }
     },
+    "@typescript-eslint/types": {
+      "version": "4.6.0",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/types/-/types-4.6.0.tgz",
+      "integrity": "sha512-5FAgjqH68SfFG4UTtIFv+rqYJg0nLjfkjD0iv+5O27a0xEeNZ5rZNDvFGZDizlCD1Ifj7MAbSW2DPMrf0E9zjA==",
+      "dev": true
+    },
     "@typescript-eslint/typescript-estree": {
-      "version": "2.27.0",
-      "resolved": "https://registry.npmjs.org/@typescript-eslint/typescript-estree/-/typescript-estree-2.27.0.tgz",
-      "integrity": "sha512-t2miCCJIb/FU8yArjAvxllxbTiyNqaXJag7UOpB5DVoM3+xnjeOngtqlJkLRnMtzaRcJhe3CIR9RmL40omubhg==",
+      "version": "4.6.0",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/typescript-estree/-/typescript-estree-4.6.0.tgz",
+      "integrity": "sha512-s4Z9qubMrAo/tw0CbN0IN4AtfwuehGXVZM0CHNMdfYMGBDhPdwTEpBrecwhP7dRJu6d9tT9ECYNaWDHvlFSngA==",
       "dev": true,
       "requires": {
+        "@typescript-eslint/types": "4.6.0",
+        "@typescript-eslint/visitor-keys": "4.6.0",
         "debug": "^4.1.1",
-        "eslint-visitor-keys": "^1.1.0",
-        "glob": "^7.1.6",
+        "globby": "^11.0.1",
         "is-glob": "^4.0.1",
         "lodash": "^4.17.15",
-        "semver": "^6.3.0",
+        "semver": "^7.3.2",
         "tsutils": "^3.17.1"
       },
       "dependencies": {
         "semver": {
-          "version": "6.3.0",
-          "resolved": "https://registry.npmjs.org/semver/-/semver-6.3.0.tgz",
-          "integrity": "sha512-b39TBaTSfV6yBrapU89p5fKekE2m/NwnDocOVruQFS1/veMgdzuPcnOM34M6CwxW8jH/lxEa5rBoDeUwu5HHTw==",
+          "version": "7.3.2",
+          "resolved": "https://registry.npmjs.org/semver/-/semver-7.3.2.tgz",
+          "integrity": "sha512-OrOb32TeeambH6UrhtShmF7CRDqhL6/5XpPNp2DuRH6+9QLw/orhp72j87v8Qa1ScDkvrrBNpZcDejAirJmfXQ==",
+          "dev": true
+        }
+      }
+    },
+    "@typescript-eslint/visitor-keys": {
+      "version": "4.6.0",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/visitor-keys/-/visitor-keys-4.6.0.tgz",
+      "integrity": "sha512-38Aa9Ztl0XyFPVzmutHXqDMCu15Xx8yKvUo38Gu3GhsuckCh3StPI5t2WIO9LHEsOH7MLmlGfKUisU8eW1Sjhg==",
+      "dev": true,
+      "requires": {
+        "@typescript-eslint/types": "4.6.0",
+        "eslint-visitor-keys": "^2.0.0"
+      },
+      "dependencies": {
+        "eslint-visitor-keys": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/eslint-visitor-keys/-/eslint-visitor-keys-2.0.0.tgz",
+          "integrity": "sha512-QudtT6av5WXels9WjIM7qz1XD1cWGvX4gGXvp/zBn9nXG02D0utdU3Em2m/QjTnrsk6bBjmCygl3rmj118msQQ==",
           "dev": true
         }
       }
@@ -805,6 +879,12 @@
         "is-string": "^1.0.5"
       }
     },
+    "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",
@@ -1691,6 +1771,23 @@
       "integrity": "sha512-Dj6Wk3tWyTE+Fo1rW8v0Xhwk80um6yFYKbuAxc9c3EZxIHFDYwbi34Uk42u1CdnIiVorvt4RmlSDjIPyzGC2ew==",
       "dev": true
     },
+    "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"
+      },
+      "dependencies": {
+        "path-type": {
+          "version": "4.0.0",
+          "resolved": "https://registry.npmjs.org/path-type/-/path-type-4.0.0.tgz",
+          "integrity": "sha512-gDKb8aZMDeD/tZWs9P6+q0J9Mwkdl6xMV8TjnGP3qJVJ06bdMgkbBlLU8IdfOsIsFz2BW1rNVT3XuNEl8zPAvw==",
+          "dev": true
+        }
+      }
+    },
     "doctrine": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/doctrine/-/doctrine-3.0.0.tgz",
@@ -2612,6 +2709,65 @@
       "integrity": "sha512-xJuoT5+L99XlZ8twedaRf6Ax2TgQVxvgZOYoPKqZufmJib0tL2tegPBOZb1pVNgIhlqDlA0eO0c3wBvQcmzx4w==",
       "dev": true
     },
+    "fast-glob": {
+      "version": "3.2.4",
+      "resolved": "https://registry.npmjs.org/fast-glob/-/fast-glob-3.2.4.tgz",
+      "integrity": "sha512-kr/Oo6PX51265qeuCYsyGypiO5uJFgBS0jksyG7FUeCyQzNwYnzrNIMR1NXfkZXsMYXYLRAHgISHBz8gQcxKHQ==",
+      "dev": true,
+      "requires": {
+        "@nodelib/fs.stat": "^2.0.2",
+        "@nodelib/fs.walk": "^1.2.3",
+        "glob-parent": "^5.1.0",
+        "merge2": "^1.3.0",
+        "micromatch": "^4.0.2",
+        "picomatch": "^2.2.1"
+      },
+      "dependencies": {
+        "braces": {
+          "version": "3.0.2",
+          "resolved": "https://registry.npmjs.org/braces/-/braces-3.0.2.tgz",
+          "integrity": "sha512-b8um+L1RzM3WDSzvhm6gIz1yfTbBt6YTlcEKAvsmqCZZFw46z626lVj9j1yEPW33H5H+lBQpZMP1k8l+78Ha0A==",
+          "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"
+          }
+        },
+        "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": "2.1.0",
       "resolved": "https://registry.npmjs.org/fast-json-stable-stringify/-/fast-json-stable-stringify-2.1.0.tgz",
@@ -2628,6 +2784,15 @@
       "resolved": "https://registry.npmjs.org/fast-safe-stringify/-/fast-safe-stringify-2.0.7.tgz",
       "integrity": "sha512-Utm6CdzT+6xsDk2m8S6uL8VHxNwI6Jub+e9NYTcAms28T84pTa25GJQV9j0CY0N1rM8hK4x6grpF2BQf+2qwVA=="
     },
+    "fastq": {
+      "version": "1.9.0",
+      "resolved": "https://registry.npmjs.org/fastq/-/fastq-1.9.0.tgz",
+      "integrity": "sha512-i7FVWL8HhVY+CTkwFxkN2mk3h+787ixS5S63eb78diVRc1MCssarHq3W5cj0av7YDSwmaV928RNag+U1etRQ7w==",
+      "dev": true,
+      "requires": {
+        "reusify": "^1.0.4"
+      }
+    },
     "fb-watchman": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/fb-watchman/-/fb-watchman-2.0.1.tgz",
@@ -3442,6 +3607,34 @@
       "integrity": "sha512-WOBp/EEGUiIsJSp7wcv/y6MO+lV9UoncWqxuFfm8eBwzWNgyfBd6Gz+IeKQ9jCmyhoH99g15M3T+QaVHFjizVA==",
       "dev": true
     },
+    "globby": {
+      "version": "11.0.1",
+      "resolved": "https://registry.npmjs.org/globby/-/globby-11.0.1.tgz",
+      "integrity": "sha512-iH9RmgwCmUJHi2z5o2l3eTtGBtXek1OYlHrbcxOYugyHLmAsZrPj43OtHThd62Buh/Vv6VyCBD2bdyWcGNQqoQ==",
+      "dev": true,
+      "requires": {
+        "array-union": "^2.1.0",
+        "dir-glob": "^3.0.1",
+        "fast-glob": "^3.1.1",
+        "ignore": "^5.1.4",
+        "merge2": "^1.3.0",
+        "slash": "^3.0.0"
+      },
+      "dependencies": {
+        "ignore": {
+          "version": "5.1.8",
+          "resolved": "https://registry.npmjs.org/ignore/-/ignore-5.1.8.tgz",
+          "integrity": "sha512-BMpfD7PpiETpBl/A6S498BaIJ6Y/ABT93ETbby2fP00v4EbvPBXWEoaR1UBPKs3iR53pJY7EtZk5KACI57i1Uw==",
+          "dev": true
+        },
+        "slash": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/slash/-/slash-3.0.0.tgz",
+          "integrity": "sha512-g9Q1haeby36OSStwb4ntCGGGaKsaVSjQ68fBxoQcutl5fS1vuY18H3wSt3jFyFtrkx+Kz0V1G85A4MyAdDMi2Q==",
+          "dev": true
+        }
+      }
+    },
     "graceful-fs": {
       "version": "4.2.3",
       "resolved": "https://registry.npmjs.org/graceful-fs/-/graceful-fs-4.2.3.tgz",
@@ -5494,6 +5687,12 @@
       "integrity": "sha512-abv/qOcuPfk3URPfDzmZU1LKmuw8kT+0nIHvKrKgFrwifol/doWcdA4ZqsWQ8ENrFKkd67Mfpo/LovbIUsbt3w==",
       "dev": true
     },
+    "merge2": {
+      "version": "1.4.1",
+      "resolved": "https://registry.npmjs.org/merge2/-/merge2-1.4.1.tgz",
+      "integrity": "sha512-8q7VEgMJW4J8tcfVPy8g09NcQwZdbwFEqhe/WZkoIzjn/3TGDwtOCYtXGxA3O8tPzpczCCDgv+P2P5y00ZJOOg==",
+      "dev": true
+    },
     "micromatch": {
       "version": "3.1.10",
       "resolved": "https://registry.npmjs.org/micromatch/-/micromatch-3.1.10.tgz",
@@ -6464,6 +6663,12 @@
       "integrity": "sha512-TTlYpa+OL+vMMNG24xSlQGEJ3B/RzEfUlLct7b5G/ytav+wPrplCpVMFuwzXbkecJrb6IYo1iFb0S9v37754mg==",
       "dev": true
     },
+    "reusify": {
+      "version": "1.0.4",
+      "resolved": "https://registry.npmjs.org/reusify/-/reusify-1.0.4.tgz",
+      "integrity": "sha512-U9nH88a3fc/ekCF1l0/UP1IosiuIjyTh7hBvXVMHYgVcfGvt897Xguj2UOLDeI5BG2m7/uwyaLVT6fbtCwTyzw==",
+      "dev": true
+    },
     "rimraf": {
       "version": "3.0.2",
       "resolved": "https://registry.npmjs.org/rimraf/-/rimraf-3.0.2.tgz",
@@ -6488,6 +6693,12 @@
         "is-promise": "^2.1.0"
       }
     },
+    "run-parallel": {
+      "version": "1.1.10",
+      "resolved": "https://registry.npmjs.org/run-parallel/-/run-parallel-1.1.10.tgz",
+      "integrity": "sha512-zb/1OuZ6flOlH6tQyMPUrE3x3Ulxjlo9WIVXR4yVYi4H9UXQaeIsPbLn2R3O3vQCnDKkAl2qHiuocKKX4Tz/Sw==",
+      "dev": true
+    },
     "rxjs": {
       "version": "6.5.4",
       "resolved": "https://registry.npmjs.org/rxjs/-/rxjs-6.5.4.tgz",
diff --git a/package.json b/package.json
index 8809c90..5b6675f 100644
--- a/package.json
+++ b/package.json
@@ -52,8 +52,8 @@
     "@types/node": "12.12.29",
     "@types/request": "2.48.4",
     "@types/twitter": "1.7.0",
-    "@typescript-eslint/eslint-plugin": "2.27.0",
-    "@typescript-eslint/parser": "2.27.0",
+    "@typescript-eslint/eslint-plugin": "4.6.0",
+    "@typescript-eslint/parser": "4.6.0",
     "eslint": "6.8.0",
     "eslint-config-airbnb-typescript": "7.2.1",
     "eslint-config-prettier": "6.10.1",