code: public static List<IReaction> getAllReactions(IChemFile file) {
          List<IReaction> reactonList = new ArrayList<IReaction>();
          List<IChemModel> chemModel = getAllChemModels(file);
          for (int f = 0; f < chemModel.size(); f++) {
              for (IReaction reaction : chemModel.get(f).getReactionSet().reactions()) {
                  reactonList.add(reaction);
              }
          }
          return reactonList;
      }
docs: Get a list of all IReaction inside an IChemFile.
  
  @param file  The IChemFile object.
  @return      The List of IReaction objects inside.