const datasets = [
  { externalId: 'sensitiveData' },
  { writeProtected: true }
];
const createdDatasets = await client.datasets.create(datasets);

{
  "items": [
    {
      "writeProtected": false,
      "id": 4503599627370496,
      "createdTime": 1730204346000,
      "lastUpdatedTime": 1730204346000,
      "externalId": "my.known.id",
      "name": "<string>",
      "description": "<string>",
      "metadata": {}
    }
  ]
}