fix: NamedTemporaryFile not defined

app.py

@@ -3,7 +3,7 @@ import base64
 from fastapi import FastAPI, HTTPException
 from PIL import Image
 from pydantic import BaseModel
-
+from tempfile import NamedTemporaryFile
 from transformers import AutoModelForCausalLM, AutoTokenizer
 
 app = FastAPI()
@@ -30,7 +30,7 @@ print("INFO: Model & Tokenizer loaded!")
 
 @app.get("/")
 def greet_json():
-    return {"Hello": "World!"}
+    return {"message": "Server is UP!"}
 
 
 @app.post("/query")