{
    "type": "minecraft:crafting_shaped",
    "conditions": [
        {
            "itemRegistryName": "crafting_upgrade",
            "type": "sophisticatedbackpacks:item_enabled"
        }
    ],
    "pattern": [
        " T ",
        "IBI",
        " C "
    ],
    "key": {
        "B": {
            "item": "sophisticatedbackpacks:upgrade_base"
        },
        "C": {
            "tag": "forge:chests"
        },
        "I": {
            "tag": "forge:ingots/iron"
        },
        "T": {
            "tag": "forge:workbench"
        }
    },
    "result": {
        "item": "sophisticatedbackpacks:crafting_upgrade"
    }
}