code: @Deprecated
      @SuppressWarnings("unchecked")
      public List<String> getAliases() {
          if (extraElements != null && extraElements.containsKey("aliases")) {
              return (List<String>) extraElements.get("aliases");
          } else {
              throw new MongoGridFSException("No aliases data for this GridFS file");
          }
      }
docs: The aliases for the file
  
  @return the aliases of the file
  @deprecated any aliases should be stored in the metadata document instead.