code: public void marshall(ListAttributesRequest listAttributesRequest, ProtocolMarshaller protocolMarshaller) {
  
          if (listAttributesRequest == null) {
              throw new SdkClientException("Invalid argument passed to marshall(...)");
          }
  
          try {
              protocolMarshaller.marshall(listAttributesRequest.getCluster(), CLUSTER_BINDING);
              protocolMarshaller.marshall(listAttributesRequest.getTargetType(), TARGETTYPE_BINDING);
              protocolMarshaller.marshall(listAttributesRequest.getAttributeName(), ATTRIBUTENAME_BINDING);
              protocolMarshaller.marshall(listAttributesRequest.getAttributeValue(), ATTRIBUTEVALUE_BINDING);
              protocolMarshaller.marshall(listAttributesRequest.getNextToken(), NEXTTOKEN_BINDING);
              protocolMarshaller.marshall(listAttributesRequest.getMaxResults(), MAXRESULTS_BINDING);
          } catch (Exception e) {
              throw new SdkClientException("Unable to marshall request to JSON: " + e.getMessage(), e);
          }
      }
docs: Marshall the given parameter object.