{
  "name": "map",
  "description": "Maps selected nodes into a new result set using the child lambda",
  "signature": {
    "input": {
      "kind": "node-list",
      "description": "Expression selecting the nodes to map",
      "required": true,
      "mode": "Expression"
    },
    "children": {
      "*": {
        "type": "lambda",
        "description": "Mapper body evaluated once per selected node; each returned value becomes a [.] node and returned child nodes are added to the mapped result",
        "required": true,
        "mode": "ExecutableLambda",
        "cardinality": "OneOrMore",
        "role": "ExecutableBody",
        "evaluation": "EvalSelf",
        "projection": "ReturnedResult"
      }
    },
    "output": {
      "mode": "Lambda",
      "kind": "node-list",
      "description": "Resolves to one mapped output item per selected node, using the value or nodes returned by the child lambda"
    }
  }
}