curl --request POST \
  --url https://api.mixpeek.com/v1/clusters/{cluster_id}/data \
  --header 'Content-Type: application/json' \
  --data '{
  "cluster_id": "cl_123",
  "include_centroids": true,
  "include_members": true,
  "limit": 100,
  "offset": 0
}'

{
  "cluster_id": "<string>",
  "centroids": [
    {
      "cluster_label": "<string>",
      "centroid_vector": [
        123
      ],
      "num_members": 123,
      "metadata": {}
    }
  ],
  "members": [
    {
      "document_id": "<string>",
      "cluster_label": "<string>",
      "distance_to_centroid": 123,
      "coordinates": [
        123
      ],
      "metadata": {}
    }
  ],
  "total_clusters": 123,
  "total_members": 123
}