UtilityAPI

// The Material[] has to have 9 entries. They translate to the 9 slots in a crafting table (left to right)
// There is an overload for this method which takes in all 9 Material items instead of an array
// Material.AIR means the slot in the crafting table will have to be empty
Material[] ingredients = {Material.AIR, Material.COAL, Material.AIR,
                    Material.COAL, Material.COAL_BLOCK, Material.COAL,
                    Material.AIR, Material.COAL, Material.AIR};
CraftRecipe recipe = new CraftRecipe(new ItemStack(Material.DIAMOND), ingredients, "DiamondRecipe", this);
recipe.addRecipe();

SmithRecipe recipe = new SmithRecipe(new ItemStack(Material.NETHERITE_PICKAXE), Material.IRON_PICKAXE, Material.DIAMOND, "DiamondPick", this);
        recipe.setResult(new ItemStack(Material.DIAMOND_PICKAXE));
        recipe.addRecipe();

// First create a cooldown
// Give it a time and TimeScale (Minutes or Seconds)
Cooldown cooldown = new Cooldown(10, TimeScale.SECONDS);
            
    
// Add a player to a cooldown
cooldown.addPlayerToCooldown(player);
    
// Remove a player from a cooldown
cooldown.removePlayerFromCooldown(player);
    
// Check if player is on cooldown
// Returns true/ false
cooldown.isOnCooldown(player);
    
// Get remaining time
// Returns an integer
cooldown.getRemainingCooldown(player);    // This will always return in the unit that was given when the cooldown was created
cooldown.getRemainingCooldown(player, TimeScale.MINUTES);    // This will return in the given unit

Item item = new Item(Material.GOLDEN_SWORD);
item.addEnchant(Enchantment.FIRE_ASPECT, 1, true);
item.setName(ChatColor.RED + "Fire Sword");
item.addFlags(ItemFlag.HIDE_ENCHANTS);
item.setUnbreakable(true);
           
player.getInventory().addItem(item.getItemStack());

ItemStack stack = new ItemBuilder(Material.DIAMOND_SWORD).setDisplayName(ChatColor.BLUE + "Ice Sword").addEnchant(Enchantment.KNOCKBACK, 3).addFlags(ItemFlag.HIDE_ENCHANTS).addToLore(ChatColor.WHITE + "Freezes Players").getItemStack();

utilityAPI.inventory.removeItem(player, Material.STICK, 10);

if(utilityAPI.inventory.containsItems(player, Material.STICK, 10)) {
    player.sendMessage(ChatColor.GREEN + "You own at least 10 sticks!");
}