{
  "name": "Chain-of-responsibility",
  "contexts": [
    {
      "relations": [],
      "transfer": {
        "src": "App.{Item}",
        "dst": "App",
        "data": { "type": "String", "name": "data" },
        "style": "PULL",
        "multiplicity": "1:1"
      }
    }
  ]
}