{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "title": "extended_Refund500Response",
  "properties": {
    "error": {
      "type": "string",
      "example": "Unknown error",
      "description": "Error message"
    },
    "code": {
      "type": "integer",
      "example": 500,
      "default": 500
    }
  }
}