Technic-Server-1.20.1/overrides/kubejs/data/trials/loot_tables/gameplay/spawner_loot.json

{
  "type": "minecraft:chest",
  "pools": [
    {
      "rolls": 1,
      "entries": [
        {
          "type": "minecraft:item",
          "name": "trials:trial_key",
          "weight": 1
        },
        {
          "type": "minecraft:loot_table",
          "name": "trials:gameplay/food_loot",
          "weight": 1
        }
      ]
    }
  ]
}