fix

Author: gablilli

.eslintrc.json

@@ -4,10 +4,27 @@
     "es2021": true
   },
   "extends": ["eslint:recommended", "prettier"],
+  "globals": {
+    "Logger": "readonly",
+    "DriveApp": "readonly",
+    "Classroom": "readonly",
+    "ScriptApp": "readonly",
+    "Utilities": "readonly",
+    "UrlFetchApp": "readonly",
+    "Drive": "readonly",
+    "SpreadsheetApp": "readonly",
+    "GmailApp": "readonly",
+    "Session": "readonly",
+    "CalendarApp": "readonly",
+    "FormApp": "readonly",
+    "MailApp": "readonly"
+  },
   "parserOptions": {
     "ecmaVersion": 12,
-    "sourceType": "module"
+    "sourceType": "script"
   },
   "rules": {
+    "no-unused-vars": "warn",
+    "no-undef": "error"
   }
 }