Update app.py

app.py

@@ -147,7 +147,7 @@ async def chat(request: ChatRequest):
             model="gpt-4o-mini",
             messages=messages,
             tools=tools,
-            tool_choice="auto"
+            tool_choice="auto",
             max_tokens=request.max_tokens,
             temperature=request.temperature,
             top_p=request.top_p