@Override
	public int findKeyRange(List<KeyRange> keyRangeList, Address addr) {
		// TODO: Will not handle mixed list of relative and absolute key ranges
		if (addr == null) {
			return -1;
		}
		return Collections.binarySearch(keyRangeList, addr, addressInsertionKeyRangeComparator);
	}
Sets the image base, effectively changing the mapping between addresses and longs.
@param base the new base address.
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/database/map/AddressMapDB.java