{
  "expression": ["abs", ["get", "x"]],
  "inputs": [
    [{}, {"properties": {"x": -2}}],
    [{}, {"properties": {"x": 2}}],
    [{}, {"properties": {"x": -1.1}}]
  ],
  "expected": {
    "compiled": {
      "result": "success",
      "isFeatureConstant": false,
      "isZoomConstant": true,
      "type": "number"
    },
    "outputs": [2, 2, 1.1],
    "serialized": ["abs", ["number", ["get", "x"]]]
  }
}