{
  "id": "invalid_struct",
  "name": "invalid_struct",
  "version": 1,
  "requirements": [
    {
      "xtype": "flow",
      "version": 1
    }
  ],
  "variables" : {
    "input" : [
    ],
    "output" : [
    ],
    "local" : [
    ]
  },
  "edges": [
    [ 1, 3 ],
    [ 2, 3 ]
  ],
  "branches": [
  ]
}