bug: Throw error when there is no email 🐛

AppDevIn · AppDevIn · commit 55bda716ea8f · 2022-04-28T17:48:01.000+08:00
diff --git a/models.py b/models.py
@@ -191,7 +191,7 @@ class Mail:
     data: Optional[List[Datum]] = None
 
     def hasData(self) -> bool:
-        return self.data is not []
+        return self.data is []
 
     @staticmethod
     def from_dict(obj: Any) -> 'Mail':
