mindspore/tests/ut/data/dataset/testPK/datasetSchema.json

{
  "datasetType": "IMAGENET",
  "numRows": 2,
  "columns": {
    "image": {
      "type": "uint8",
      "rank": 1
    },
    "label" : {
      "type": "uint32",
      "rank": 1
    }
  }
}