{
  "name": "Observer",
  "contexts": [
    {
      "relations": [
        {
          "src": "Main",
          "dst": "Main.Weather.{ConcreteObserver}",
          "multiplicity": "1:1"
        }
      ],
      "transfer": {
        "src": "Main.Weather",
        "dst": "Main.Weather.{ConcreteObserver}",
        "data": {
          "type": "Data",
          "name": "data"
        },
        "style": "PUSH",
        "multiplicity": "1:*"
      }
    },
    {
      "relations": [],
      "transfer": {
        "src": "Main",
        "dst": "Main.Weather",
        "data": {
          "type": "ConcreteObserver",
          "name": "concreteObserver"
        },
        "style": "PUSH",
        "multiplicity": "1:*"
      }
    }
  ]
}