{
  "datasetType": "MANIFEST",
  "numRows": 3,
  "columns": {
    "image": {
        "type": "uint8",
        "rank": 1,
        "t_impl": "cvmat"
    },
    "label" : {
      "type": "uint32",
      "rank": 1,
      "t_impl": "flex"
    }
  }
}