code: @Deprecated
      public static RegionMetadata loadMetadataFromURI(
              final URI uri,
              final ClientConfiguration config) throws IOException {
          return LegacyRegionXmlLoadUtils.load(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
  @return the parsed region metadata
  @throws IOException on error fetching or parsing the XML file