{
  "placement": {
    "type": "minecraft:concentric_rings",
    "count": 3,
    "distance": 6,
    "preferred_biomes": "#minecraft:has_structure/trail_ruins",
    "salt": 0,
    "spread": 2
  },
  "structures": [
    {
      "structure": "create_ltab:the_caretakersbunker",
      "weight": 1
    }
  ]
}