{
  "parent": "cnk:cooldown",
  "criteria": {
      "requirement": {
          "trigger": "minecraft:using_item",
          "conditions": {
              "item": {
                  "predicates": {
                      "minecraft:custom_data": {"cnk":{"gift_box":true}}
                  }
              }
          }
      }
  },
  "rewards": {
      "function": "cnk:gift_box/check"
  }
}