{
  "variants": {
    "distance=1": {"model": "minecraft:block/birch_leaves_1"},
    "distance=2": {"model": "minecraft:block/birch_leaves_2"},
    "distance=3": {"model": "minecraft:block/birch_leaves_3"},
    "distance=4": {"model": "minecraft:block/birch_leaves_4"},
    "distance=5": {"model": "minecraft:block/birch_leaves_5"},
    "distance=6": {"model": "minecraft:block/birch_leaves_6"},
    "distance=7": {"model": "minecraft:block/birch_leaves_7"}
  }
}