grafana/pkg/tsdb/loki/testdata_metric_dataplane/matrix_nan.json

{
  "status": "success",
  "data": {
    "resultType": "matrix",
    "result": [
      {
        "metric": {},
        "values": [
          [1643014450.417, "NaN"],
          [1643014750.517, "nan"],
          [1643014450.617, "nAn"]
        ]
      }
    ]
  }
}