code: public void marshall(CreateClusterRequest createClusterRequest, ProtocolMarshaller protocolMarshaller) {
  
          if (createClusterRequest == null) {
              throw new SdkClientException("Invalid argument passed to marshall(...)");
          }
  
          try {
              protocolMarshaller.marshall(createClusterRequest.getBrokerNodeGroupInfo(), BROKERNODEGROUPINFO_BINDING);
              protocolMarshaller.marshall(createClusterRequest.getClusterName(), CLUSTERNAME_BINDING);
              protocolMarshaller.marshall(createClusterRequest.getEncryptionInfo(), ENCRYPTIONINFO_BINDING);
              protocolMarshaller.marshall(createClusterRequest.getEnhancedMonitoring(), ENHANCEDMONITORING_BINDING);
              protocolMarshaller.marshall(createClusterRequest.getKafkaVersion(), KAFKAVERSION_BINDING);
              protocolMarshaller.marshall(createClusterRequest.getNumberOfBrokerNodes(), NUMBEROFBROKERNODES_BINDING);
          } catch (Exception e) {
              throw new SdkClientException("Unable to marshall request to JSON: " + e.getMessage(), e);
          }
      }
docs: Marshall the given parameter object.