change model to gemini flash

app.py

@@ -66,7 +66,7 @@ final_answer = FinalAnswerTool()
 model = HfApiModel(
 max_tokens=2096,
 temperature=0.5,
-model_id='Qwen/Qwen2.5-Coder-32B-Instruct',# it is possible that this model may be overloaded
+model_id='gemini/gemini-2.0-flash-exp',# it is possible that this model may be overloaded
 custom_role_conversions=None,
 )