{
  "$schema": "https://json-structure.org/draft/2020-12/schema",
  "name": "BookList",
  "type": "object",
  "properties": {
    "count": { "type": "integer" },
    "next": { "type": ["string", "null"] },
    "previous": { "type": ["string", "null"] },
    "results": { "type": "array", "items": { "$ref": "gutendex-book-structure.json" } }
  }
}