docs: public <C> DbxEntry./*@Nullable*/WithChildrenC<C> getMetadataWithChildrenC(String path, boolean includeMediaInfo, final Collector<DbxEntry, ? extends C> collector)
          throws DbxException
      {
          return getMetadataWithChildrenBase(path, includeMediaInfo, new DbxEntry.WithChildrenC.ReaderMaybeDeleted<C>(collector));
      }