{
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  "formats": "Każda podstrona ma dwie wersje z tymi samymi danymi: JSON (adres strony + .json) i markdown (adres strony + .md). Do każdego `url` w tym dokumencie można dopisać .json albo .md.",
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  "countries_count": 1,
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      "title": "Barcelona. CITYbreak",
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      "slug": "barcelona-citybreak",
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      "first_published": "2026-01-01",
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    {
      "title": "Norwegia. Trek&travel",
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      "slug": "norwegia-trektravel",
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      "series": null
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    {
      "title": "Spacer po Lublinie i okolicach",
      "subtitle": null,
      "slug": "spacer-po-lublinie-i-okolicach",
      "url": "https://www.kolczanksiazek.pl/olgierd-adamczak/spacer-po-lublinie-i-okolicach",
      "first_published": "2026-01-01",
      "series": null
    },
    {
      "title": "Ostatnia bitwa",
      "subtitle": null,
      "slug": "ostatnia-bitwa",
      "url": "https://www.kolczanksiazek.pl/olgierd-adamczak/ostatnia-bitwa",
      "first_published": "2022-05-30",
      "series": null
    }
  ],
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  "narrations": null
}