{
  "config": {
    "feature": {
      "config": {
        "feature": {
          "config": {
            "feature": {
              "config": {
                "rock_count": 4,
                "hole_count": 1,
                "valid_blocks": [
                  "minecraft:stone",
                  "minecraft:granite",
                  "minecraft:diorite",
                  "minecraft:andesite"
                ],
                "state": {
                  "Properties": {
                    "falling": "true"
                  },
                  "Name": "minecraft:lava"
                },
                "requires_block_below": true
              },
              "type": "minecraft:spring_feature"
            },
            "decorator": {
              "config": {
                "bottom_offset": 8,
                "top_offset": 16,
                "maximum": 256
              },
              "type": "minecraft:range_very_biased"
            }
          },
          "type": "minecraft:decorated"
        },
        "decorator": {
          "config": {},
          "type": "minecraft:square"
        }
      },
      "type": "minecraft:decorated"
    },
    "decorator": {
      "config": {
        "count": 40
      },
      "type": "minecraft:count"
    }
  },
  "type": "minecraft:decorated"
}