meatballcraft/resources/contenttweaker/blockstates/allure_of_the_void.json

{
  "forge_marker": 1,
  "defaults": {
    "model": "forge:fluid",
    "custom": {
      "fluid": "allure_of_the_void"
    }
  },
  "variants": {
    "normal": [{}]
  }
}