{
  "expression": ["+", 1, 2, 3, 4],
  "inputs": [[{}, {}]],
  "expected": {
    "compiled": {
      "result": "success",
      "isFeatureConstant": true,
      "isZoomConstant": true,
      "type": "number"
    },
    "outputs": [10],
    "serialized": 10
  }
}