{
  "feature": "firefly_bush_backport:patch_firefly_bush",
  "placement": [
    {
      "type": "minecraft:rarity_filter",
      "chance": 8
    },
    {
      "type": "minecraft:in_square"
    },
    {
      "type": "minecraft:heightmap",
      "heightmap": "MOTION_BLOCKING"
    },
    {
      "type": "minecraft:biome"
    }
  ]
}