{
  "loot_tables_to_eject": [
    {
      "data": "minecraft:spawners/ominous/trial_chamber/key",
      "weight": 3
    },
    {
      "data": "minecraft:spawners/ominous/trial_chamber/consumables",
      "weight": 7
    }
  ],
  "simultaneous_mobs": 4.0,
  "simultaneous_mobs_added_per_player": 0.5,
  "spawn_potentials": [
    {
      "data": {
        "entity": {
          "id": "minecraft:silverfish"
        }
      },
      "weight": 1
    }
  ],
  "ticks_between_spawn": 20,
  "total_mobs": 12.0
}