豆包图片生成请求体

{
    "model": "bytedance/doubao-seedream-4.0",
    "prompt": "生成一只在阳光下奔跑的金毛犬，背景是油菜花田",
    "image": "http://example.com",
    "response_format": "url",
    "size": "1280x720",
    "seed": -1,
    "guidance_scale": 4,
    "watermark": true,
    "sequential_image_generation": "disabled",
    "sequential_image_generation_options": {
        "max_count": 3
    },
    "stream": false,
    "n": 1,
    "quality": "standard",
    "style": "natural",
    "user": "user-123"
}