code: public void marshall(ListContainerInstancesRequest listContainerInstancesRequest, ProtocolMarshaller protocolMarshaller) {
  
          if (listContainerInstancesRequest == null) {
              throw new SdkClientException("Invalid argument passed to marshall(...)");
          }
  
          try {
              protocolMarshaller.marshall(listContainerInstancesRequest.getCluster(), CLUSTER_BINDING);
              protocolMarshaller.marshall(listContainerInstancesRequest.getFilter(), FILTER_BINDING);
              protocolMarshaller.marshall(listContainerInstancesRequest.getNextToken(), NEXTTOKEN_BINDING);
              protocolMarshaller.marshall(listContainerInstancesRequest.getMaxResults(), MAXRESULTS_BINDING);
              protocolMarshaller.marshall(listContainerInstancesRequest.getStatus(), STATUS_BINDING);
          } catch (Exception e) {
              throw new SdkClientException("Unable to marshall request to JSON: " + e.getMessage(), e);
          }
      }
docs: Marshall the given parameter object.