@Override
    protected void moveIndex(long from, long to) {
		T value = getObject(from);
		remove(from);
		putObject(to, value);
	}
Retrieves the object stored at the given index.
@param index the index at which to retrieve the object.
@return the object stored at the given index or null if no object is
stored at the index.
Ghidra/Framework/Generic/src/main/java/ghidra/util/map/ObjectValueMap.java