docs: public void marshall(Configurations configurations, ProtocolMarshaller protocolMarshaller) {
  
          if (configurations == null) {
              throw new SdkClientException("Invalid argument passed to marshall(...)");
          }
  
          try {
              protocolMarshaller.marshall(configurations.getCurrent(), CURRENT_BINDING);
              protocolMarshaller.marshall(configurations.getHistory(), HISTORY_BINDING);
              protocolMarshaller.marshall(configurations.getPending(), PENDING_BINDING);
          } catch (Exception e) {
              throw new SdkClientException("Unable to marshall request to JSON: " + e.getMessage(), e);
          }
      }