VideoRequest

{
    "model": "kling-v1",
    "prompt": "宇航员站起身走了",
    "image": "https://example.com/image.jpg",
    "duration": 5,
    "width": 1280,
    "height": 720,
    "fps": 30,
    "seed": 20231234,
    "n": 1,
    "response_format": "url",
    "user": "user-1234",
    "metadata": {
        "property1": "string",
        "property2": "string"
    }
}