docs: public void marshall(HostEntry hostEntry, ProtocolMarshaller protocolMarshaller) {
  
          if (hostEntry == null) {
              throw new SdkClientException("Invalid argument passed to marshall(...)");
          }
  
          try {
              protocolMarshaller.marshall(hostEntry.getHostname(), HOSTNAME_BINDING);
              protocolMarshaller.marshall(hostEntry.getIpAddress(), IPADDRESS_BINDING);
          } catch (Exception e) {
              throw new SdkClientException("Unable to marshall request to JSON: " + e.getMessage(), e);
          }
      }