How I can add enchantment to this !

How I can add enchantment to this !??

PHP:

case "getinfo";                   $item = Item::get(369,0,1);                   $inv = $sender->getInventory();                   $item->setCustomName("§l§bInfo");                   $inv->addItem($item);                   return true;                   break;

 

PHP:

$enchantment = Enchantment::getEnchantment(id);
$enchantment = new EnchantmentInstance($enchantment, level);
$item->addEnchantment($enchantment);