In this API it will be add more Classes to better control and add Things.
Config Class In the Config Class you can manage a Config like the method getDefault, wich gives you a object, if the roots exist and when not create it thats.
Head-/Itembuilder Class Helps you to build an Item. You can create the class with new ItemBuilder(material, amount) and then you can make methods like setDisplayName() wich returns the class itself so you can do long code like: new ItemBuilder().setDisplayName("§aHello").build();
Math Class Helps you at random with a min and max.