Update app.py

app.py

@@ -59,7 +59,7 @@ async def setup_agent(settings):
         temperature=settings["Temperature"],
         streaming=settings["Streaming"],
         model=settings["Model"],
-        api_key=cl.user_session.get("api_key"),
+        openai_api_key=cl.user_session.get("api_key"),
     )
 
     # We get our memory here, which is used to track the conversation history.