{
  "graph": null,
  "err": {
    "errs": [
      {
        "range": "d2/testdata/d2compiler/TestCompile/no-class-inside-classes.d2,2:4:22-2:9:27",
        "errmsg": "d2/testdata/d2compiler/TestCompile/no-class-inside-classes.d2:3:5: \"class\" cannot appear within \"classes\""
      }
    ]
  }
}