code: public static boolean hasNucleotideModification(List<PolymerNotation> polymers) throws NotationException {
      for (PolymerNotation polymer : getRNAPolymers(polymers)) {
        if (RNAUtils.hasNucleotideModification(polymer)) {
          return true;
        }
      }
      return false;
    }
docs: method to check if any of the rna polymers have a modified nucleotide
  @param polymers list of {@link PolymerNotation}
  @return true if at least one rna polymer has a modified nucleotide
  @throws NotationException if notation is not valid