{
  "config": {
    "features": [
      {
        "feature": {
          "config": {
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                "feature": "arboria:spikes/ice/force",
                "placement": [
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                    "type": "minecraft:count"
                  },
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                    "heightmap": "MOTION_BLOCKING_NO_LEAVES",
                    "type": "minecraft:heightmap"
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              },
              {
                "feature": "arboria:spikes/ice/mid/3",
                "placement": [
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                    "predicate": {
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                    },
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        },
        "placement": [
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            "predicate": {
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}