{
  "expression": ["get", "b", ["get", "a"]],
  "inputs": [
    [{}, {"properties": {"a": {"b": 0}}}],
    [{}, {"properties": {"a": "not"}}]
  ],
  "expected": {
    "compiled": {
      "result": "success",
      "isFeatureConstant": false,
      "isZoomConstant": true,
      "type": "value"
    },
    "outputs": [
      0,
      {
        "error": "Expected value to be of type object, but found string instead."
      }
    ],
    "serialized": ["get", "b", ["object", ["get", "a"]]]
  }
}