code: public static List<IChemModel> getAllChemModels(IChemFile file) {
          List<IChemModel> modelsList = new ArrayList<IChemModel>();
  
          for (int f = 0; f < file.getChemSequenceCount(); f++) {
              for (IChemModel model : file.getChemSequence(f).chemModels()) {
                  modelsList.add(model);
              }
          }
          return modelsList;
      }
docs: Get a list of all ChemModels inside an IChemFile.
  
  @param file  The IChemFile object.
  @return      The List of IChemModel objects inside.