{
  "feature": {
    "type": "minecraft:twisting_vines",
    "config": {
      "spread_width": 3,
      "spread_height": 4,
      "max_height": 37
    }
  },
  "placement": [
    {
      "type": "minecraft:count_on_every_layer",
      "count": {
        "type": "minecraft:weighted_list",
        "distribution": [
          {
            "weight": 1,
            "data": {
              "type": "minecraft:uniform",
                "min_inclusive": 7,
                "max_inclusive": 32
            }
          },
          {
            "weight": 4,
            "data": {
              "type": "minecraft:uniform",
                "min_inclusive": 0,
                "max_inclusive": 12
            }
          }
        ]
      }
    }
  ]
}
