{
  "feature": "minecraft:red_mushroom",
  "placement": [
    {
      "type": "minecraft:rarity_filter",
      "chance": 171
    },
    {
      "type": "minecraft:in_square"
    },
    {
      "type": "minecraft:heightmap",
      "heightmap": "MOTION_BLOCKING"
    },
    {
      "type": "minecraft:biome"
    },
    {
      "type": "minecraft:count",
      "count": 96
    },
    {
      "type": "minecraft:offset",
      "x": {
        "type": "minecraft:trapezoid",
        "max": 7,
        "min": -7,
        "plateau": 0
      },
      "y": {
        "type": "minecraft:trapezoid",
        "max": 3,
        "min": -3,
        "plateau": 0
      },
      "z": {
        "type": "minecraft:trapezoid",
        "max": 7,
        "min": -7,
        "plateau": 0
      }
    },
    {
      "type": "minecraft:block_predicate_filter",
      "predicate": {
        "type": "minecraft:matching_block_tag",
        "tag": "minecraft:air"
      }
    }
  ]
}