My name is {0!}
---
{}
---
{
  "val": null,
  "err": {
    "kind": 3,
    "message": "My name is {0!}",
    "location": {
      "start": {
        "offset": 11,
        "line": 1,
        "column": 12
      },
      "end": {
        "offset": 13,
        "line": 1,
        "column": 14
      }
    }
  }
}