private List<KtNamedDeclaration> getSelectedElementsToMoveChecked() throws ConfigurationException {
        List<KtNamedDeclaration> elementsToMove = getSelectedElementsToMove();
        if (elementsToMove.isEmpty()) {
            throw new ConfigurationException(KotlinBundle.message("text.no.elements.to.move.are.selected"));
        }
        return elementsToMove;
    }
private List<KtNamedDeclaration> getSelectedElementsToMoveChecked()