Update app.py

app.py

@@ -77,6 +77,7 @@ HF_API_KEY = os.getenv("HF_TOKEN")
 with open("prompts.yaml", 'r') as stream:
     prompt_templates = yaml.safe_load(stream)
 
+final_answer = FinalAnswerTool()
     
 agent = CodeAgent(
     model=model,