{
  "graph": null,
  "err": {
    "ioerr": null,
    "errs": [
      {
        "range": "d2/testdata/d2compiler/TestCompile/edge_invalid_style.d2,1:2:12-1:9:19",
        "errmsg": "d2/testdata/d2compiler/TestCompile/edge_invalid_style.d2:2:3: opacity must be style.opacity"
      }
    ]
  }
}