docs: protected SibRaStringGenerator getStringGenerator() {
  
          final SibRaStringGenerator generator = new SibRaStringGenerator(this);
          generator.addField("active", _active);
          generator.addField("connections", _connections);
          generator.addField("messageEndpointFactory", _messageEndpointFactory);
          generator.addField("endpointConfiguration", _endpointConfiguration);
          generator.addField("endpointInvoker", _endpointInvoker);
          generator.addField("workManager", _workManager);
          generator.addField("endpointMethodTransactional",
                  _endpointMethodTransactional);
          return generator;
  
      }