Update app.py

app.py

@@ -60,8 +60,8 @@ def invoke(openai_api_key, prompt, agent_option):
                 temperature = config["temperature"]
             )
 
-            print(completion)
-            
+            print(completion.usage)
+            callback = completion.usage
             result = completion.choices[0].message.content
     except Exception as e:
         err_msg = e