docs: public void marshall(ChildWorkflowExecutionCompletedEventAttributes childWorkflowExecutionCompletedEventAttributes, ProtocolMarshaller protocolMarshaller) {
  
          if (childWorkflowExecutionCompletedEventAttributes == null) {
              throw new SdkClientException("Invalid argument passed to marshall(...)");
          }
  
          try {
              protocolMarshaller.marshall(childWorkflowExecutionCompletedEventAttributes.getWorkflowExecution(), WORKFLOWEXECUTION_BINDING);
              protocolMarshaller.marshall(childWorkflowExecutionCompletedEventAttributes.getWorkflowType(), WORKFLOWTYPE_BINDING);
              protocolMarshaller.marshall(childWorkflowExecutionCompletedEventAttributes.getResult(), RESULT_BINDING);
              protocolMarshaller.marshall(childWorkflowExecutionCompletedEventAttributes.getInitiatedEventId(), INITIATEDEVENTID_BINDING);
              protocolMarshaller.marshall(childWorkflowExecutionCompletedEventAttributes.getStartedEventId(), STARTEDEVENTID_BINDING);
          } catch (Exception e) {
              throw new SdkClientException("Unable to marshall request to JSON: " + e.getMessage(), e);
          }
      }