GeminiGenerateContentResponse

{
    "candidates": [
        {
            "content": {
                "role": "user",
                "parts": [
                    {
                        "text": "string"
                    }
                ]
            },
            "finishReason": "STOP"
        }
    ],
    "usageMetadata": {
        "promptTokenCount": 2,
        "candidatesTokenCount": 8,
        "totalTokenCount": 10
    }
}