code: public static RegionMetadata load
      (final URI uri, final ClientConfiguration config) throws
              IOException {
  
          return RegionMetadataParser.parse(
                  RuntimeHttpUtils.fetchFile(uri, config));
      }
docs: Loads a set of region metadata by downloading an XML file from the
  given URI and parsing it.
  
  @param uri    the uri of the XML file to parse
  @param config configuration for the HTTP client to use to fetch the file
  @throws IOException any error while reading data.