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              ],
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        "n_classes": 1,
        "normalized_entropy": 0.0
      },
      "name": "notes",
      "role": "metadata",
      "stats": {
        "n": 30,
        "n_classes": 1,
        "n_missing": 0,
        "top_classes": [
          {
            "count": 30,
            "name": "Bruker OPUS binary decoded with nirs4all-formats 0.2.10, sample metadata transcribed from official Mendeley record description."
          }
        ]
      },
      "type": "categorical",
      "unit": null
    }
  ],
  "versions": {
    "content": "1.0.0",
    "schema_protocol": "2.0"
  },
  "warnings": [
    "conversion: Y.csv has no 'observation_id'; assumed Y/M row pairing and attached M.csv IDs. M observation order matches X.csv."
  ]
}