curl --request GET \
  --url https://studio.edgeimpulse.com/v1/api/{projectId}/training/keras/{learnId}/data-explorer/features \
  --header 'x-api-key: <api-key>'

{
  "success": true,
  "hasFeatures": true,
  "data": [
    {
      "X": "`{ 0: 9.81, 11: 0.32, 22: 0.79 }`",
      "y": 123,
      "yLabel": "<string>",
      "sample": {
        "id": 123,
        "name": "<string>",
        "startMs": 123,
        "endMs": 123,
        "category": "training"
      }
    }
  ],
  "error": "<string>",
  "inputBlock": {
    "id": 2,
    "type": "time-series",
    "name": "Time series",
    "title": "Time series",
    "windowSizeMs": 2004,
    "windowIncreaseMs": 123,
    "frequencyHz": 60,
    "classificationWindowIncreaseMs": 123,
    "padZeros": true,
    "imageWidth": 28,
    "imageHeight": 28,
    "resizeMode": "squash",
    "resizeMethod": "squash",
    "cropAnchor": "middle-center",
    "createdBy": "createImpulse",
    "createdAt": "2023-11-07T05:31:56Z",
    "datasetSubset": {
      "includePercentage": 123,
      "seed": 123
    }
  }
}