{
  "format_version": "1.13.0",
  "minecraft:feature_rules": {
    "description": {
      "identifier": "overworld_underground_pr_permafrost_feature_1_17",
      "places_feature": "pr_permafrost_feature"
    },
    "conditions": {
      "placement_pass": "underground_pass",
      "minecraft:biome_filter": [
        {
          "any_of": [
            {
              "test": "has_biome_tag",
              "operator": "==",
              "value": "cold"
            },
            {
              "test": "has_biome_tag",
              "operator": "==",
              "value": "deep"
            },
            {
              "test": "has_biome_tag",
              "operator": "==",
              "value": "dripstone_caves"
            },
            {
              "test": "has_biome_tag",
              "operator": "==",
              "value": "ice"
            },
            {
              "test": "has_biome_tag",
              "operator": "==",
              "value": "ice_mountains"
            },
            {
              "test": "has_biome_tag",
              "operator": "==",
              "value": "ice_plains"
            },
            {
              "test": "has_biome_tag",
              "operator": "==",
              "value": "ice_plains_spikes"
            },
            {
              "test": "has_biome_tag",
              "operator": "==",
              "value": "jagged_peaks"
            },
            {
              "test": "has_biome_tag",
              "operator": "==",
              "value": "mega_taiga"
            },
            {
              "test": "has_biome_tag",
              "operator": "==",
              "value": "ocean"
            },
            {
              "test": "has_biome_tag",
              "operator": "==",
              "value": "snowy_slopes"
            },
            {
              "test": "has_biome_tag",
              "operator": "==",
              "value": "taiga"
            },
            {
              "test": "has_biome_tag",
              "operator": "==",
              "value": "taiga_hills"
            },
            {
              "test": "has_biome_tag",
              "operator": "==",
              "value": "taiga_mutated"
            }
          ]
        }
      ]
    },
    "distribution": {
      "iterations": 78,
      "coordinate_eval_order": "zyx",
      "x": {
        "distribution": "uniform",
        "extent": [
          0,
          16
        ]
      },
      "y": {
        "distribution": "uniform",
        "extent": [
          -9,
          148
        ]
      },
      "z": {
        "distribution": "uniform",
        "extent": [
          0,
          16
        ]
      }
    }
  }
}