[
  {
    "weight": 1,
    "value": {
      "template": "the_vault:empty",
      "palettes": []
    }
  },
  {
    "weight": 14,
    "pool": [
      {
        "weight": 28,
        "pool": [
          {
            "weight": 4,
            "reference": "the_vault:vault/decor/generic/rare/7x7/wall1"
          },
          {
            "weight": 0,
            "reference": "the_vault:vault/decor/generic/rare/5x5/wall1"
          }
        ]
      },
      {
        "weight": 7,
        "pool": [
          {
            "weight": 4,
            "reference": "the_vault:vault/decor/generic/epic/7x7/wall1"
          },
          {
            "weight": 0,
            "reference": "the_vault:vault/decor/generic/epic/5x5/wall1"
          }
        ]
      }
    ]
  }
]