public void Return <T>(IEnumerable <Stack <T> > items) => StackPool <T> .Return(items);
public void Return <T>(Stack <T> item) => StackPool <T> .Return(item);
public void Return <T>(params Stack <T>[] items) => StackPool <T> .Return(items);
public Stack <T> Stack <T>() => StackPool <T> .Get();