VideoContentPart

{
    "type": "text",
    "role": "user",
    "text": "string",
    "image_url": {
        "url": "http://example.com"
    },
    "video_url": {
        "url": "http://example.com"
    },
    "audio_url": {
        "url": "http://example.com"
    }
}