{
  "pools": [{
    "name": "eye_pool",
    "rolls": 1,
    "entries": [
      {
        "type": "item",
        "name": "minecraft:emerald",
        "weight": 1,
        "functions": [{ "function": "set_count", "count": 1 }]
      },
      {
        "type": "empty",
        "weight": 19
      }
    ]
  }]
}