Update app.py

app.py

@@ -54,7 +54,9 @@ except:
         })
     })
 
-@lru_cache(maxsize=32)
+from async_lru import alru_cache
+
+@alru_cache(maxsize=32)
 async def send_chat_message(LLM_URL, LLM_API, user_input):
     payload = {
         "inputs": {},