{
  "type": "ExceptionGroup",
  "module": "builtins",
  "message": "parallel failures (2 sub-exceptions)",
  "exceptions": [
    {
      "type": "ExceptionGroup",
      "module": "builtins",
      "message": "row failures (2 sub-exceptions)",
      "exceptions": [
        {
          "type": "ValueError",
          "module": "builtins",
          "message": "bad row"
        },
        {
          "type": "KeyError",
          "module": "builtins",
          "message": "'id'"
        }
      ]
    },
    {
      "type": "OSError",
      "module": "builtins",
      "message": "disk unavailable"
    }
  ]
}