Update app.py

app.py

@@ -157,8 +157,14 @@ def orchestrate_workflow(image, nutritionix_key):
         max_turns=10
     )
     
-    # Extract and format the final response from the chat
-    result = response[-1].get("content", "No output from agents.")
+# Extract and format the final response from the ChatResult
+    if hasattr(response, 'chat_history') and response.chat_history:
+        # Get the last message from chat history
+        last_message = response.chat_history[-1]
+        result = last_message.get("content", "No output from agents.")
+    else:
+        result = "No output from agents."
+    
     if isinstance(result, dict):
         result = result.get("text", "No text output from agents.")
     print(f"Total time: {time.time() - start:.2f}s")