Update main.py

main.py

@@ -388,12 +388,15 @@
 
 
 
-from fastapi import FastAPI, HTTPException
+Import necessary libraries
+from fastapi import FastAPI, HTTPException, Query
 from pydantic import BaseModel
 import gspread
 from google.oauth2.service_account import Credentials
 import pandas as pd
-
+from collections import defaultdict
+import os
+from fastapi.middleware.cors import CORSMiddleware
 app = FastAPI()
 app.add_middleware(
     CORSMiddleware,