An IEnchantmentDefinition is the actual Enchantment, it does not posess a level, but you can use this to retrieve information on the Enchantment.

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.IEnchantmentDefinition;

You can retrieve such an object from the Enchantment Bracket handler or from an IEnchantment object.

ZenGetter	ZenSetter	Tipo
ZenGetter id	ZenSetter ​	Tipo int
ZenGetter nome	ZenSetter nome	Tipo string
ZenGetter maxLevel	ZenSetter ​	Tipo int
ZenGetter minLevel	ZenSetter ​	Tipo int
ZenGetter isAllowedOnBooks	ZenSetter ​	Tipo boolean
ZenGetter isTreasureEnchantment	ZenSetter ​	Tipo boolean
ZenGetter isCurse	ZenSetter ​	Tipo boolean
ZenGetter registryName	ZenSetter ​	Tipo string

Checks if the enchantment can be put on the item.
First method checks in general, second checks if the item can be enchanted to this enchantment using the enchantment Table.
Both return a bool and require an IItemStack as input parameter.

ZenScript
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ench.canApply(IItemStack item);
ench.canApplyAtEnchantmentTable(IItemStack item);

Checks what enchantability the item must have for the Enchantment at the given level.
Both methods return an int and take the level of the enchantment as int parameter.

ZenScript
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ench.getMinEnchantability(int level);
ench.getMaxEnchantability(int level);

Returns the translated name (e.g. "smite IV").
Returns a string and requires the level of the enchantment as int parameter.
Does the same as IEnchantment's .displayName ZenGetter!

objectzenscriptivec
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ench.getTranslatedName(int level);

By giving an EnchantmentDefinition a level you can make an IEnchantment out of it:

ZenScript
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ench.makeEnchantment(int level);
ench * level;

You can use the == operator to check if two enchantments are the same.
This means if they have the same id.

ZenScript
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if(enchA == enchB)
    print("Same!");

ZenScript
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import crafttweaker.enchantments.IEnchantmentDefinition;
import crafttweaker.data.IData;

val array as IEnchantmentDefinition[] = [<enchantment:minecraft:protection>,<enchantment:minecraft:fire_protection>,<enchantment:minecraft:feather_falling>,<enchantment:minecraft:blast_protection>,<enchantment:minecraft:projectile_protection>,<enchantment:minecraft:respiration>,<enchantment:minecraft:aqua_affinity>];

var map as IData = {};

for ench in array {
    map += ench.makeEnchantment(3).makeTag();
}

print(map.asString());


recipes.addShapeless("Supo", <minecraft:golden_sword>.withTag(map), [<minecraft:iron_sword>, <minecraft:golden_sword>]);