{
  "fields": [
    {
      "name": "id",
      "type": "string",
      "constraints": {
        "required": true
      }
    },
    {
      "name": "name",
      "type": "string"
    },
    {
      "name": "given_names",
      "type": "array",
      "description": "JSON array in CSV cell; list<string> in Parquet."
    },
    {
      "name": "family_names",
      "type": "array",
      "description": "JSON array in CSV cell; list<string> in Parquet."
    }
  ]
}