[
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    "type": "reference",
    "name": "step1",
    "import": "memory:sdk/tests/web/native/main.dart#step1"
  },
  {
    "type": "reference",
    "name": "step2a",
    "import": "memory:sdk/tests/web/native/main.dart#step2a"
  },
  {
    "type": "reference",
    "name": "step2b",
    "import": "memory:sdk/tests/web/native/main.dart#step2b"
  },
  {
    "type": "reference",
    "name": "step3",
    "import": "memory:sdk/tests/web/native/main.dart#step3"
  },
  {
    "type": "or",
    "name": "step2",
    "nodes": [
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      "step2b"
    ]
  },
  {
    "type": "order",
    "predecessor": "step1",
    "successor": "step2"
  },
  {
    "type": "order",
    "predecessor": "step2",
    "successor": "step3"
  }
]