{
    "model": {
      "type": "minecraft:condition",
      "on_false": {
        "type": "minecraft:model",
        "model": "infinity_cave:weapons/thunder_harpoon"
      },
      "on_true": {
        "type": "minecraft:model",
        "model": "infinity_cave:weapons/thunder_harpoon_charge"
      },
      "property": "minecraft:using_item"
    }
  }