@NotNull
    public static XPathExpression createExpression(PsiElement context, String text) {
        final XPathFile file = createXPathFile(context, text);
        final XPathExpression child = PsiTreeUtil.getChildOfType(file, XPathExpression.class);
        assert child != null;
        return child;
    }
@NotNull
    public static XPathExpression createExpression(PsiElement context, String text)