An IEnchantment essentially is an IEnchantmentDefinition and an enchantment level.

Importing the package

Link to importing-the-package

It might be required for you to import the package if you encounter any issues (like casting an Array), so better be safe than sorry and add the import.
import crafttweaker.enchantments.IEnchantment;

ZenGetters/ZenSetters

Link to zengetterszensetters

ZenGetterZenSetterType
ZenGetter
definition
ZenSetter
Type
IEnchantmentDefinition
ZenGetter
level
ZenSetter
Type
int
ZenGetter
displayName
ZenSetter
displayName
Type
string

Retrieve the Enchantment as NBT

Link to retrieve-the-enchantment-as-nbt

You might want to get the Enchantment's NBT-Tag.
You can either cast it as IData or use the method:

ZenScript
Copy
ench.makeTag();
ench as crafttweaker.data.IData;