curl --request GET \
  --url https://studio.edgeimpulse.com/v1/api/{projectId}/dsp/{dspId}/features/get-graph/{category} \
  --header 'x-api-key: <api-key>'

{
  "success": true,
  "error": "<string>",
  "totalSampleCount": 123,
  "data": [
    {
      "X": "`{ 0: 9.81, 11: 0.32, 22: 0.79 }`",
      "y": 123,
      "yLabel": "<string>",
      "sample": {
        "id": 123,
        "name": "<string>",
        "startMs": 123,
        "endMs": 123
      }
    }
  ],
  "skipFirstFeatures": 123
}