{
  "synthetic": true,
  "function": "rating",
  "scope": "Finite offline teaching cases only; no live account/platform access.",
  "cases": [
    {
      "id": 1,
      "args": [
        [
          {
            "mean": 5,
            "count": 1
          },
          {
            "mean": 3,
            "count": 9
          }
        ]
      ],
      "expected": 3.2
    },
    {
      "id": 2,
      "args": [
        [
          {
            "mean": 5,
            "count": null
          }
        ]
      ],
      "expected": null
    }
  ]
}