curl --request POST \
  --url https://maas.apigo.ai/v1beta/models/{model}:predictLongRunning \
  --header 'Content-Type: application/json' \
  --header 'x-goog-api-key: <api-key>' \
  --data '
{
  "instances": [
    {
      "prompt": "一只小猫在花园中奔跑"
    }
  ],
  "parameters": {
    "durationSeconds": 5,
    "aspectRatio": "16:9"
  }
}
'

{
  "name": "operations/abc123",
  "done": false,
  "metadata": {
    "progressPercent": 0
  }
}