{
  "name": "validators.default",
  "description": "Adds default child nodes to the nodes selected by the input expression",
  "signature": {
    "input": {
      "kind": "lambda-object",
      "description": "Expression selecting the node or nodes to apply defaults to",
      "required": true,
      "mode": "Expression"
    },
    "children": {
      "*": {
        "type": "object",
        "description": "Default child node cloned into each selected node when missing",
        "required": true,
        "mode": "ValueOrExpression",
        "cardinality": "OneOrMore",
        "role": "DynamicMap",
        "projection": "StructuredTree"
      }
    }
  }
}