[
  {
    "dataPath": "['gene-id'].cells['cell-id']",
    "keyword": "minimum",
    "message": "should be >= 0",
    "params": {
      "comparison": ">=",
      "exclusive": false,
      "limit": 0
    },
    "schemaPath": "#/definitions/positiveFloatValues/patternProperties/./minimum"
  }
]