ChatCompletionResponse

{
    "id": "chatcmpl-...",
    "object": "chat.completion",
    "created": 1677652288,
    "model": "deepseek-v3.2",
    "choices": [
        {
            "index": 0,
            "message": {
                "role": "assistant",
                "content": "你好！"
            },
            "finish_reason": "stop"
        }
    ],
    "usage": {
        "prompt_tokens": 9,
        "completion_tokens": 12,
        "total_tokens": 21
    }
}