1.21.4 Getting Holder<Enchantment> from RegistryKey in GLM

[Orichalcum]

I know that this may be a basic question, but I am very new to modding.

I am trying to have it so that I can create modified Vanilla loot tables that use a custom enchantment as a condition (i.e. enchantment present = item). However, I am having trouble trying to implement this; the LootItemRandomChanceWithEnchantedBonusCondition constructor needs a Holder<Enchantment> and I am unable to use the getOrThrow() method on the custom enchantment declared in my mod's enchantments class. Here is what I have so far in the GLM:

 

protected void start(HolderLookup.Provider registries) {
        HolderLookup.RegistryLookup<Enchantment> registrylookup = registries.lookupOrThrow(Registries.ENCHANTMENT);
        LootItemRandomChanceWithEnchantedBonusCondition lootItemRandomChanceWithEnchantedBonusCondition = new LootItemRandomChanceWithEnchantedBonusCondition(0.0f, LevelBasedValue.perLevel(0.07f), registrylookup.getOrThrow(*enchantment here*));
        this.add("nebu_from_deepslate",
                new AddItemModifier(new LootItemCondition[]{
                        LootItemBlockStatePropertyCondition.hasBlockStateProperties(Blocks.DEEPSLATE).build(),
                        LootItemRandomChanceCondition.randomChance(0.25f).build(),
                        lootItemRandomChanceWithEnchantedBonusCondition
                }, OrichalcumItems.NEBU.get()));
    }

 

Inserting Enchantments.[vanilla enchantment here] actually works but trying to declare an enchantment from my custom enchantments class as [mod enchantment class].[custom enchantment] does not work even though they are both a ResourceKey and are registered in Registries.ENCHANTMENT.

Basically, how would I go about making it so that a custom enchantment declared as a ResourceKey<Enchantment> of value ResourceKey.create(Registries.ENCHANTMENT, ResourceLocation.fromNamespaceAndPath([modid], [name])), declared in a seperate enchantments class, can be used in the LootItemRandomChanceWithEnchantedBonusCondition constructor as a Holder? I can't use getOrThrow() because there is no level or block entity/entity in the start() method and it is running as datagen.

It's driving me nuts.