curl --request GET \
  --url https://api.mixpeek.com/v1/retrievers/evaluations/datasets \
  --header 'Authorization: Bearer <token>'

{
  "datasets": [
    {
      "dataset_id": "<string>",
      "dataset_name": "<string>",
      "queries": [
        {
          "query_id": "<string>",
          "query_input": {},
          "relevant_documents": [
            "<string>"
          ],
          "relevance_scores": {}
        }
      ],
      "created_at": "2023-11-07T05:31:56Z",
      "updated_at": "2023-11-07T05:31:56Z",
      "namespace_id": "<string>",
      "internal_id": "<string>",
      "query_count": 123,
      "description": "<string>",
      "metadata": {}
    }
  ],
  "total": 123,
  "page": 123,
  "page_size": 123
}