{
  "type": "minecraft:block",
  "pools": [
    {
      "rolls": 1,
      "entries": [
        {
          "type": "slots",
          "slot_source": [
            {
              "type": "slot_range",
              "slots": "contents",
              "source": "this"
            }
          ]
        }
      ]
    }
  ]
}