code: @Override
      public Iterable<IChemSequence> chemSequences() {
          return new Iterable<IChemSequence>() {
  
              @Override
              public Iterator<IChemSequence> iterator() {
                  return new ChemSequenceIterator();
              }
          };
      }
docs: Returns the Iterable to ChemSequences of this container.
  
  @return    The Iterable to ChemSequences of this container
  @see       #addChemSequence