{
  "type": "minecraft:vegetation_patch",
  "config": {
    "surface": "ceiling",
    "depth": {
      "type": "minecraft:uniform",
      "value": {
        "min_inclusive": 2,
        "max_inclusive": 4
      }
    },
    "vertical_range": 128,
    "extra_bottom_block_chance": 0.5,
    "extra_edge_column_chance": 0.5,
    "vegetation_chance": 1,
    "xz_radius": {
      "type": "minecraft:uniform",
      "value": {
        "min_inclusive": 0,
        "max_inclusive": 5
      }
    },
    "replaceable": "#nullscape:end_bottom",
    "ground_state": {
      "type": "minecraft:simple_state_provider",
      "state": {
        "Name": "minecraft:obsidian"
      }
    },
    "vegetation_feature": {
      "feature": {
        "type": "minecraft:block_column",
        "config": {
          "direction": "down",
          "allowed_placement": {
            "type": "minecraft:matching_blocks",
            "blocks": [
              "minecraft:air"
            ]
          },
          "prioritize_tip": true,
          "layers": [
            {
              "height": {
                "type": "minecraft:weighted_list",
                "distribution": [
                  {
                    "weight": 1,
                    "data": 0
                  }
                ]
              },
              "provider": {
                "type": "minecraft:simple_state_provider",
                "state": {
                  "Name": "minecraft:obsidian"
                }
              }
            },
            {
              "height": 1,
              "provider": {
                "type": "minecraft:simple_state_provider",
                "state": {
                  "Name": "minecraft:obsidian"
                }
              }
            }
          ]
        }
      },
      "placement": []
    }
  }
}
