docs: @Bean(name = "requestAdditionalDescriptors")
      public IAdditionalDescriptors getRequestAdditionalDescriptors() {
          final MediatingAdditionalDescriptors rslt = new MediatingAdditionalDescriptors();
          final List<IAdditionalDescriptors> delegateDescriptors = new ArrayList<>();
          delegateDescriptors.add(getSessionScopeAdditionalDescriptors());
          delegateDescriptors.add(getRequestScopeAdditionalDescriptors());
          rslt.setDelegateDescriptors(delegateDescriptors);
          return rslt;
      }