{
  "feature": {
    "type": "minecraft:disk",
    "config": {
      "state_provider": {
        "fallback": {
          "type": "minecraft:simple_state_provider",
          "state": {
            "Name": "minecraft:tuff"
          }
        },
        "rules": []
      },
      "target": {
        "type": "minecraft:matching_blocks",
        "blocks": "minecraft:deepslate"
      },
      "radius": {
        "type": "minecraft:uniform",
        "min_inclusive": 8,
        "max_inclusive": 8
      },
      "half_height": 4
    }
  },
  "placement": [
    {
      "type": "minecraft:height_range",
      "height": {
        "above_bottom": 0
      }
    },
    {
      "type": "minecraft:block_predicate_filter",
      "predicate": {
        "type": "minecraft:all_of",
        "predicates": [
          {
            "type": "minecraft:matching_blocks",
            "offset": [
              0,
              1,
              0
            ],
            "blocks": [
              "minecraft:moss_block"
            ]
          },
          {
            "type": "minecraft:matching_blocks",
            "offset": [
              0,
              2,
              0
            ],
            "blocks": [
              "minecraft:sculk"
            ]
          }
        ]
      }
    },
    {
      "type": "minecraft:count",
      "count": 128
    },
    {
      "type": "minecraft:in_square"
    },
    {
      "type": "minecraft:height_range",
      "height": {
        "type": "minecraft:uniform",
        "min_inclusive": {
          "absolute": 200
        },
        "max_inclusive": {
          "absolute": 230
        }
      }
    }
  ]
}