curl --request POST \
  --url https://api.ttapi.io/happyhorse/api/v1/services/aigc/video-generation/video-synthesis \
  --header 'Content-Type: application/json' \
  --header 'TT-API-KEY: <api-key>' \
  --data '
{
  "model": "happyhorse-1.0-i2v",
  "input": {
    "media": [
      {
        "type": "first_frame",
        "url": "<string>"
      }
    ],
    "prompt": "<string>"
  },
  "parameters": {
    "resolution": "720P",
    "duration": 5,
    "watermark": false,
    "seed": 12345
  }
}
'

{
  "output": {
    "task_status": "PENDING",
    "task_id": "0385dc79-5ff8-4d82-bcb6-xxxxxx"
  },
  "request_id": "4909100c-7b5a-9f92-bfe5-xxxxxx"
}