minecraft-assets/assets/minecraft/blockstates/small_dripleaf.json

{
  "variants": {
    "half=lower": [
      {
        "model": "minecraft:block/small_dripleaf_bottom"
      },
      {
        "model": "minecraft:block/small_dripleaf_bottom",
        "y": 90
      },
      {
        "model": "minecraft:block/small_dripleaf_bottom",
        "y": 180
      },
      {
        "model": "minecraft:block/small_dripleaf_bottom",
        "y": 270
      }
    ],
    "half=upper": [
      {
        "model": "minecraft:block/small_dripleaf_top"
      },
      {
        "model": "minecraft:block/small_dripleaf_top",
        "y": 90
      },
      {
        "model": "minecraft:block/small_dripleaf_top",
        "y": 180
      },
      {
        "model": "minecraft:block/small_dripleaf_top",
        "y": 270
      }
    ]
  }
}