curl --request POST \
  --url https://pollo.ai/api/platform/generation/wanx/happyhorse-1.0/ref2video \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '
{
  "input": {
    "prompt": "<string>",
    "duration": 5,
    "aspectRatio": "16:9",
    "resolution": "1080P",
    "seed": 123,
    "videoNum": 1,
    "firstFrameImage": "<unknown>",
    "refs": [
      {
        "name": "<string>",
        "image": "<string>",
        "order": 2,
        "avatarId": "<string>"
      }
    ],
    "imageMeta": [
      {
        "url": "<string>",
        "order": 5,
        "name": "<string>"
      }
    ]
  },
  "webhookUrl": "<string>",
  "clientSource": "<string>"
}
'

{
  "taskId": "<string>"
}