接口 ICustomHolderSet<T>

所有超级接口:
HolderSet<T>, IForgeHolderSet<T>, Iterable<Holder<T>>
所有已知实现类:
AndHolderSet, AnyHolderSet, CompositeHolderSet, NotHolderSet, OrHolderSet

public interface ICustomHolderSet<T> extends HolderSet<T>
Interface for mods' custom holderset types