{
  "feature": {
    "config": {
      "default": {
        "feature": "arboria:spikes/ice/classic",
        "placement": []
      },
      "features": [
        {
          "chance": 0.7,
          "feature": {
            "feature": "arboria:spikes/ice/classic_double",
            "placement": []
          }
        }
      ]
    },
    "type": "minecraft:random_selector"
  },
  "placement": [
    {
      "count": {
        "type": "minecraft:uniform",
        "min_inclusive": 2,
        "max_inclusive": 3
      },
      "type": "minecraft:count"
    },
    {
      "type": "minecraft:in_square"
    },
    {
      "heightmap": "MOTION_BLOCKING_NO_LEAVES",
      "type": "minecraft:heightmap"
    },
    {
      "type": "minecraft:biome"
    }
  ]
}