{
  "expression": [
    "boolean",
    ["in", ["get", "i"], ["array", ["get", "arr"]]]
  ],
  "inputs": [
    [{}, {"properties": {"i": null, "arr": [9, 8, 7]}}],
    [{}, {"properties": {"i": 1, "arr": [9, 8, 7]}}],
    [{}, {"properties": {"i": 9, "arr": [9, 8, 7]}}],
    [{}, {"properties": {"i": 1, "arr": null}}]
  ],
  "expected": {
    "compiled": {
      "result": "success",
      "isFeatureConstant": false,
      "isZoomConstant": true,
      "type": "boolean"
    },
    "outputs": [
      false,
      false,
      true,
      {"error":"Expected value to be of type array, but found null instead."}
    ],
    "serialized": [
      "boolean",
      ["in", ["get", "i"], ["array", ["get", "arr"]]]
    ]
  }
}