curl --request GET \
  --url https://api.tokenops.ai/v1beta/projects/{project_id}/locations/{location}/publishers/{publisher}/models/{model}/operations/{operation_id} \
  --header 'Authorization: Bearer <token>'

{
  "name": "projects/my-project/locations/us-central1/operations/operation-123456789",
  "metadata": {},
  "done": false,
  "error": {
    "code": 123,
    "message": "<string>",
    "details": [
      {}
    ]
  },
  "response": {
    "generatedVideos": [
      {
        "uri": "https://my-bucket/generated-videos/video-123.mp4",
        "videoBytes": "aSDinaTvuI8gbWludGxpZnk=",
        "mimeType": "video/mp4",
        "createTime": "2023-11-07T05:31:56Z"
      }
    ]
  }
}