{
  "model": {
    "type": "range_dispatch",
    "property": "custom_model_data",
    "fallback": {
      "type": "model",
      "model": "minecraft:block/obsidian"
    },
    "entries": [
      {
        "threshold": 1,
        "model": {
          "type": "model",
          "model": "item/obsidian/1"
        }
      }
    ]
  }
}