{
  "type": "minecraft:random_selector",
  "config": {
    "default": "minecraft:oak_checked",
    "features": [
      {
        "chance": 0.025,
        "feature": {
          "feature": "minecraft:huge_brown_mushroom",
          "placement": []
        }
      },
      {
        "chance": 0.05,
        "feature": {
          "feature": "minecraft:huge_red_mushroom",
          "placement": []
        }
      },
      {
        "chance": 0.05,
        "feature": "minecraft:dark_oak_checked"
      },
      {
        "chance": 0.25,
        "feature": "minecraft:birch_checked"
      },
      {
        "chance": 0.125,
        "feature": "minecraft:fancy_oak_checked"
      }
    ]
  }
}