docs: public void marshall(EcsCluster ecsCluster, ProtocolMarshaller protocolMarshaller) {
  
          if (ecsCluster == null) {
              throw new SdkClientException("Invalid argument passed to marshall(...)");
          }
  
          try {
              protocolMarshaller.marshall(ecsCluster.getEcsClusterArn(), ECSCLUSTERARN_BINDING);
              protocolMarshaller.marshall(ecsCluster.getEcsClusterName(), ECSCLUSTERNAME_BINDING);
              protocolMarshaller.marshall(ecsCluster.getStackId(), STACKID_BINDING);
              protocolMarshaller.marshall(ecsCluster.getRegisteredAt(), REGISTEREDAT_BINDING);
          } catch (Exception e) {
              throw new SdkClientException("Unable to marshall request to JSON: " + e.getMessage(), e);
          }
      }