EnchantmentAPI

Hello I am creating custom enchants with EnchantmentAPI found HERE. I am creating a slowness effect to test it out but I cant figure out how to add the slowness itself, heres my code

Code:java

package me.zanilla.vitrolicenchant;
 
import org.bukkit.Material;
import org.bukkit.entity.LivingEntity;
import org.bukkit.event.entity.EntityDamageByEntityEvent;
 
import com.rit.sucy.CustomEnchantment;
 
public class SlownessEnchantment extends CustomEnchantment {
 
    static final Material[] SLOWNESS_ITEMS = new Material[] {
        Material.WOOD_SWORD, Material.STONE_SWORD, Material.DIAMOND_SWORD, Material.IRON_SWORD, Material.GOLD_SWORD
    } ;
 
    public SlownessEnchantment() {
        super("Slowness", SLOWNESS_ITEMS, 2);
 
        this.max = 2;
 
        this.base = 1;
 
        this.interval = 8;
    }
 
    public void applyEffect(LivingEntity LivingEntity, int EntityDamageByEntityEvent) {
 
 
 
    }
 

 

Code:java

livingEntity.addPotionEffect(new PotionEffect(PotionEffectType.SLOWNESS, duration, amplifier));