@Override
	public AddressRange getLastRange() {
		RedBlackEntry<Address, Address> last = rbTree.getLast();
		if (last != null) {
			return new AddressRangeImpl(last.getKey(), last.getValue());
		}
		return null;
	}
Returns a list of the AddressRanges in this set.
@return  a list of the AddressRanges in this set.
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/model/address/AddressSet.java