docs: public static boolean isFormData(HttpRequest<?> request) {
          Optional<MediaType> opt = request.getContentType();
          if (opt.isPresent()) {
              MediaType contentType = opt.get();
              return (contentType.equals(MediaType.APPLICATION_FORM_URLENCODED_TYPE) || contentType.equals(MediaType.MULTIPART_FORM_DATA_TYPE));
          }
          return false;
      }