{
  "type": "minecraft:random_selector",
  "config": {
    "default": {
      "feature": "minecraft:patch_grass_jungle",
      "placement": []
    },
    "features": [
      {
        "chance": 0.05,
        "feature": "minecraft:fancy_oak_checked"
      },
      {
        "chance": 0.15,
        "feature": "minecraft:jungle_bush"
      },
      {
        "chance": 0.7,
        "feature": "minecraft:mega_jungle_tree_checked"
      }
    ]
  }
}