Update app.py

app.py

@@ -14,7 +14,7 @@ def chat(prompt):
 
   try:
       response = text_model.generate_content(prompt, stream=True)
-      return to_markdown(chunk.text) 
+      return to_markdown(response.text) 
 
   except Exception as e:
     print(f"Error during generation: {e}")