curl --request POST \
  --url https://{cluster}.cognitedata.com/api/v1/projects/{project}/ai/tools/documents/summarize \
  --header 'Authorization: Bearer <token>' \
  --header 'content-type: <content-type>' \
  --data '
{
  "items": [
    {
      "id": 123
    }
  ],
  "ignoreUnknownIds": false,
  "language": "English"
}
'

{
  "items": [
    {
      "id": 123,
      "summary": "<string>"
    }
  ]
}