docs: public void marshall(BrokerSummary brokerSummary, ProtocolMarshaller protocolMarshaller) {
  
          if (brokerSummary == null) {
              throw new SdkClientException("Invalid argument passed to marshall(...)");
          }
  
          try {
              protocolMarshaller.marshall(brokerSummary.getBrokerArn(), BROKERARN_BINDING);
              protocolMarshaller.marshall(brokerSummary.getBrokerId(), BROKERID_BINDING);
              protocolMarshaller.marshall(brokerSummary.getBrokerName(), BROKERNAME_BINDING);
              protocolMarshaller.marshall(brokerSummary.getBrokerState(), BROKERSTATE_BINDING);
              protocolMarshaller.marshall(brokerSummary.getCreated(), CREATED_BINDING);
              protocolMarshaller.marshall(brokerSummary.getDeploymentMode(), DEPLOYMENTMODE_BINDING);
              protocolMarshaller.marshall(brokerSummary.getHostInstanceType(), HOSTINSTANCETYPE_BINDING);
          } catch (Exception e) {
              throw new SdkClientException("Unable to marshall request to JSON: " + e.getMessage(), e);
          }
      }