Wan图生视频请求体

{
    "model": "ali/wan-2.6-i2v",
    "prompt": "一只小猫在草地上奔跑",
    "negative_prompt": "低分辨率、错误、最差质量",
    "image": "https://cdn.translate.alibaba.com/r/wanx-demo-1.png",
    "audio_url": "https://help-static-aliyun-doc.aliyuncs.com/file-manage-files/zh-CN/20250925/ozwpvi/rap.mp3",
    "template": "flying",
    "resolution": "720P",
    "duration": 5,
    "prompt_extend": true,
    "shot_type": "single",
    "audio": true,
    "watermark": false,
    "seed": 12345
}