ImageGenerationResponse

{
    "model": "string",
    "created": 0,
    "data": [
        {
            "url": "http://example.com",
            "b64_json": "string"
        }
    ],
    "usage": {
        "generated_images": 0
    },
    "error": {
        "code": "string",
        "message": "string"
    }
}