code: public char nodeMatch(IContextMapping<IAtomicConceptOfLabel> acolMapping,
                            Map<INode, ArrayList<IAtomicConceptOfLabel>> nmtAcols,
                            Map<String, IAtomicConceptOfLabel> sourceACoLs,
                            Map<String, IAtomicConceptOfLabel> targetACoLs,
                            INode sourceNode, INode targetNode) throws NodeMatcherException {
          throw new NodeMatcherException("Unsupported operation");
      }
docs: stub to allow it to be created as node matcher.