{
  "before": [
    {
      "class": "transport_error",
      "message": "Provider turn failed.",
      "code": null,
      "retryable": null
    },
    {
      "class": "transport_error",
      "message": "Provider turn failed.",
      "code": null,
      "retryable": null
    }
  ],
  "after": [
    {
      "class": "transport_error",
      "message": "Error: RetriableError: WritableIterable is closed",
      "code": null,
      "retryable": null
    },
    {
      "class": "transport_error",
      "message": "Error: RetriableError: WritableIterable is closed",
      "code": null,
      "retryable": null
    }
  ]
}