FalOmniImageRequest

{
    "prompt": "生成一张未来感产品海报，使用 @Image1 的主体风格",
    "image_urls": [
        "string"
    ],
    "elements": [
        {
            "reference_image_urls": [
                "string"
            ],
            "frontal_image_url": "string"
        }
    ],
    "resolution": "1K",
    "num_images": 1,
    "aspect_ratio": "auto",
    "output_format": "png",
    "sync_mode": true,
    "callback_url": "http://example.com"
}