{
  "parameters": {
    "type": "object",
    "properties": {
      "mode": {
        "type": "string",
        "description": "How input columns should be aligned before union.",
        "enum": [
          "strict",
          "by_name"
        ],
        "default": "by_name"
      }
    }
  },
  "inputs": [
    {
      "key": "left",
      "label": "Left input",
      "required": true
    },
    {
      "key": "right",
      "label": "Right input",
      "required": true
    }
  ],
  "outputs": [
    {
      "key": "out",
      "label": "Output",
      "required": true
    }
  ],
  "lineage": {
    "mode": "explicit"
  },
  "deterministic": true,
  "runtimeSupported": true
}