ItemBuilder itemBuilder = new ItemBuilder (Material. DIAMOND_SWORD ) ;
itemBuilder. addLoreLine ( "Test Sword" ) ;
itemBuilder. addEnchantment (Enchantment. DAMAGE_ALL, 5 ) ;
itemBuilder. addItemFlags (ItemFlag. HIDE_ENCHANTS ) ;
ItemStack itemStack = itemBuilder. create ( ) ; //Build the example ItemStack. Of course any ItemStack can be used!

NBTUtil nbt = wolfyUtilities. getNmsUtil ( ). getNBTUtil ( ) ; //Get the NBTUtil from your plugins WolfyUtilities instance.
NBTItem nbtItem = nbt. getItem (itemStack ) ; //Creates a wrapper for the ItemStack

//Directly set Tags to the item
nbtItem. setTag ( "test_string", nbt. getTag ( ). ofString ( "Test String!" ) ) ;

//Get the Tag of the item for more advanced options
NBTCompound compound = nbtItem. getCompound ( ) ;
compound. setInt ( "Test_Int", 10 ) ;

//Create a new Compound Tag using the NBTTag API
NBTCompound wolfyCompound = nbt. getTag ( ). compound ( ) ;
//There are tons of options to add/edit any kind of NBT Tag
wolfyCompound. setByte ( "Byte", ( byte ) 4 ) ;
wolfyCompound. setBoolean ( "Boolean", true ) ;
wolfyCompound. setDouble ( "Double", 2d ) ;
wolfyCompound. setFloat ( "Float", 7f ) ;
wolfyCompound. setInt ( "Int", 9 ) ;
wolfyCompound. setLong ( "Long", 9999 ) ;
wolfyCompound. setShort ( "Short", ( short ) 200 ) ;
wolfyCompound. setString ( "String", "TestString" ) ;
wolfyCompound. setByteArray ( "ByteArray", new byte [ ] { 9, 9, 5, 2, 3 } ) ;
wolfyCompound. setIntArray ( "IntArray", new int [ ] { 9, 3543, 2134, 123 } ) ;
wolfyCompound. setLongArray ( "LongArray", new long [ ] { 54, 65, 23244343, 1000000000000000000L } ) ;

NBTCompound nestedComp = nbt. getTag ( ). compound ( ) ;
nestedComp. setString ( "LUL", "xD this is a nested Text!" ) ;
nestedComp. setBoolean ( "Funny", false ) ;

//Set nested compounds
wolfyCompound. set ( "Nested", nestedComp ) ;
//Setting values to the items root tag will automatically be applied to the NBTItem instance
compound. set ( "wolfy", wolfyCompound ) ;

//Get the ItemStack with the updated NBT Tags
ItemStack newItem = nbtItem. create ( ) ;