minor fix

app/main.py

@@ -4,7 +4,7 @@ import pathlib
 import time
 import re
 from typing import List
-from fastapi import FastAPI, Request
+from fastapi import FastAPI, Request, Depends
 from fastapi.middleware import Middleware
 from fastapi.middleware.cors import CORSMiddleware
 from fastapi.responses import StreamingResponse