{
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    "data": {
      "labels": ["0", "1", "2", "3", "4", "5", "6", "7", "8"],
      "datasets": [
        {
          "backgroundColor": "rgba(0, 0, 192, 0.25)",
          "data": [0, -4, 2, 4, 2, 1, -1, 1, 2]
        }
      ]
    },
    "options": {
      "responsive": false,
      "spanGaps": false,
      "scales": {
        "r": {
          "display": false,
          "grid": {
            "circular": true
          }
        }
      },
      "elements": {
        "point": {
          "radius": 0
        },
        "line": {
          "borderColor": "transparent",
          "fill": { "value": 3 }
        }
      },
      "plugins": {
        "legend": false,
        "title": false,
        "tooltip": false
      }
    }
  },
  "options": {
    "canvas": {
      "height": 256,
      "width": 256
    }
  }
}
