const data = {
  pageNumber: 8,
  fileRef: { externalId: 'def_file_changed' },
  textRegion: { xMin: 0, xMax: 0.1, yMin: 0, yMax: 0.2 },
};
const changes = [
  {
    id: 1,
    update: {
      data: {
        set: data,
      },
    },
  },
];

const updatedResp = await client.annotations.update(changes);

{
  "items": [
    {
      "id": 4096,
      "createdTime": 1730204346000,
      "lastUpdatedTime": 1730204346000,
      "annotatedResourceType": "file",
      "annotatedResourceId": 1337,
      "annotationType": "pointcloud.BoundingVolume",
      "creatingApp": "cognite-vision",
      "creatingAppVersion": "1.2.1",
      "creatingUser": "john.doe@cognite.com",
      "data": {
        "assetRef": {
          "externalId": "abc"
        },
        "symbolRegion": {
          "xMin": 0.1,
          "xMax": 0.2,
          "yMin": 0.1,
          "yMax": 0.2
        },
        "textRegion": {
          "xMin": 0.2,
          "xMax": 0.3,
          "yMin": 0.2,
          "yMax": 0.3
        },
        "pageNumber": 43
      },
      "status": "approved"
    }
  ]
}