{
    "feature": "terralith:canyon/cliff/calcite_upper",
    "placement": [
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        "type": "minecraft:random_offset",
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        "y_spread": 0
      },
      {
        "type": "minecraft:heightmap",
        "heightmap": "WORLD_SURFACE_WG"
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      {
        "type": "minecraft:biome"
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    ]
  }
  