{
  "name": "lambda2yaml",
  "description": "Transforms a lambda hierarchy into YAML",
  "signature": {
    "input": {
      "kind": "node-list,lambda-tree",
      "description": "Expression selecting the nodes (rows) to transform",
      "required": true,
      "mode": "Expression"
    },
    "output": {
      "mode": "Value",
      "kind": "yaml,text",
      "description": "Resolves to the generated YAML string"
    }
  }
}