updated agent scope

app.py

@@ -290,7 +290,7 @@ class Agent:
 
 ## gradio functions
 def respond(message: str, history : dict, web_search: bool = False):
-    
+    global agent
     # input
     print("history:", history)
     text = message.get("text", "")
@@ -342,7 +342,7 @@ For more information: [README.md](https://huggingface.co/spaces/Lab9705/MultiAge
 **Important**: if you’re interested in trying the sound generation feature, please open a discussion to request that we restart our custom space. We have limited credits, so we appreciate your understanding 🤓
 """)
                     
-global agent 
+# global agent 
 agent = initialize_agent()
 demo = gr.ChatInterface(
                     fn=respond,