code: @Override
      public DefaultLightblueMetadataResponse metadata(LightblueMetadataRequest lightblueRequest) throws LightblueParseException, LightblueResponseException, LightblueHttpClientException, LightblueException {
          HttpResponse response = callService(lightblueRequest, configuration.getMetadataServiceURI());
          return new DefaultLightblueMetadataResponse(
                  response.getBody(),
                  response.getHeaders(),
                  mapper);
      }
docs: /*
  (non-Javadoc)
  
  @see com.redhat.lightblue.client.LightblueClient#metadata(com.redhat.lightblue .client.request.LightblueRequest)