code: public void addLostStorage(Map<String, StorageList> lostStorage) {
      for (Map.Entry<String, StorageList> entry : lostStorage.entrySet()) {
        List<String> paths = mLostStorage.getOrDefault(entry.getKey(), new ArrayList<>());
        paths.addAll(entry.getValue().getStorageList());
        mLostStorage.put(entry.getKey(), paths);
      }
    }
docs: Adds new worker lost storage paths.
  
  @param lostStorage the lost storage to add