code: public @Nonnull Stream<XQuery> select(String xpath) {
          return new NodeListSpliterator(evaluate(xpath)).stream().map(XQuery::new);
      }
docs: Selects elements based on the XPath expression that is applied to the tree
  represented by this {@link XQuery}.
  
  @param xpath
  XPath expression
  @return Stream of selected nodes as {@link XQuery} object