Can we set reasoning effort via Python SDK?

Dear developers,

May I set the reasoning efforts of models using codes like below instead of setting it via chatmock serve --reasoning-effort? 

```
response = client.chat.completions.create(
    model="gpt-5.5",
    reasoning_effort='high',
    messages=[{"role": "user", "content": "write a story about a cat."}]
)
```

Thank you very much! 