code: public Entry getMetadata(String path, int fileLimit, @Nullable String hash) {
          return getMetadata(path, fileLimit, hash, true);
      }
docs: Returns metadata information about specified resource with
  checking for its hash with specified max child entries count.
  If nothing changes (hash isn't changed) then 304 will returns.
  
  @param path      to file or directory
  @param fileLimit max child entries count
  @param hash      to check smth changed
  
  @return metadata of specified resource
  
  @see Entry