[
  {
    "weight": 4,
    "value": {
      "template": "the_vault:empty",
      "palettes": []
    }
  },
  {
    "weight": 1,
    "pool": [
      {
        "weight": 1,
        "value": {
          "template": "the_vault:vault/altars/altar1",
          "palettes": [
            "the_vault:generic/altar_nbt"
          ]
        }
      },
      {
        "weight": 1,
        "value": {
          "template": "the_vault:vault/altars/altar2",
          "palettes": [
            "the_vault:generic/altar_nbt"
          ]
        }
      },
      {
        "weight": 1,
        "value": {
          "template": "the_vault:vault/altars/altar3",
          "palettes": [
            "the_vault:generic/altar_nbt"
          ]
        }
      },
      {
        "weight": 1,
        "value": {
          "template": "the_vault:vault/altars/altar4",
          "palettes": [
            "the_vault:generic/altar_nbt"
          ]
        }
      }
    ]
  }
]