{
  "config": {
    "feature": {
      "config": {
        "contents": {
          "Properties": {
            "level": "0"
          },
          "Name": "minecraft:lava"
        },
        "rim": {
          "Name": "minecraft:magma_block"
        },
        "size": {
          "base": 3,
          "spread": 4
        },
        "rim_size": {
          "base": 0,
          "spread": 2
        }
      },
      "type": "minecraft:delta_feature"
    },
    "decorator": {
      "config": {
        "count": 40
      },
      "type": "minecraft:count_multilayer"
    }
  },
  "type": "minecraft:decorated"
}