MapLibreParticleLab/metrics/integration/expression-tests/length/invalid/test.json

{
  "expression": ["length", 0],
  "inputs": [[{}, {}]],
  "expected": {
    "compiled": {
      "result": "error",
      "errors": [
        {
          "key": "",
          "error": "Expected argument of type string or array, but found number instead."
        }
      ]
    }
  }
}