change annotated

main.py

@@ -11,7 +11,7 @@ import shutil
 from pathlib import Path
 from contextlib import asynccontextmanager
 import pandas as pd
-from typing import Annotated
+from typing import Annotated, Optional, Union
 from datetime import datetime, timedelta, timezone
 import jwt
 from jwt.exceptions import InvalidTokenError
@@ -66,13 +66,13 @@ class Token(BaseModel):
     token_type: str
 
 class TokenData(BaseModel):
-    username: str | None = None
+    username: Optional[str] = None
 
 class User(BaseModel):
     username: str
-    email: str | None = None
-    full_name: str | None = None
-    disabled: bool | None = None
+    email: Optional[str] = None
+    full_name: Optional[str] = None
+    disabled: Optional[bool] = None
 
 class UserInDB(User):
     hashed_password: str