{
  "schema_version": 1,
  "graphs": [
    {
      "id": "main",
      "label": "主流程",
      "nodes": [
        {
          "id": "start",
          "label": "开始游戏",
          "input_schema": {
            "type": "object",
            "properties": {}
          }
        }
      ],
      "transitions": []
    }
  ]
}