How to give enchantment to an itemstack?

Plugins Plugin Development
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Title. Thank you. :slight_smile:

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Enchantment enchantment;
List<Enchantment> enchantments = item.get(Keys.ITEM_ENCHANTMENTS).orElse(new ArrayList<>());
enchantments.add(enchantment);
item.offer(Keys.ITEM_ENCHANTMENTS, enchantments);