code: public void marshall(Comment comment, ProtocolMarshaller protocolMarshaller) {
  
          if (comment == null) {
              throw new SdkClientException("Invalid argument passed to marshall(...)");
          }
  
          try {
              protocolMarshaller.marshall(comment.getCommentId(), COMMENTID_BINDING);
              protocolMarshaller.marshall(comment.getParentId(), PARENTID_BINDING);
              protocolMarshaller.marshall(comment.getThreadId(), THREADID_BINDING);
              protocolMarshaller.marshall(comment.getText(), TEXT_BINDING);
              protocolMarshaller.marshall(comment.getContributor(), CONTRIBUTOR_BINDING);
              protocolMarshaller.marshall(comment.getCreatedTimestamp(), CREATEDTIMESTAMP_BINDING);
              protocolMarshaller.marshall(comment.getStatus(), STATUS_BINDING);
              protocolMarshaller.marshall(comment.getVisibility(), VISIBILITY_BINDING);
              protocolMarshaller.marshall(comment.getRecipientId(), RECIPIENTID_BINDING);
          } catch (Exception e) {
              throw new SdkClientException("Unable to marshall request to JSON: " + e.getMessage(), e);
          }
      }
docs: Marshall the given parameter object.