Update app.py

app.py

@@ -254,7 +254,7 @@ with gr.Blocks() as demo:
 
     def test_agent_response(question: str) -> str:
         # agent = BasicAgent()
-        agent = ZephyrAPI()
+        agent = LangGraphAgent()
         return agent(question)
 
     test_button.click(fn=test_agent_response, inputs=question_input, outputs=answer_output)