code: static byte[] marshallIDL4Config(final AttributeImpl attribute) throws DevFailed {
          XLOGGER.entry();
          final AttributeConfig_3 config = TangoIDLAttributeUtil.toAttributeConfig3(attribute);
          final CDROutputStream os = new CDROutputStream();
          try {
              AttributeConfig_3Helper.write(os, config);
              XLOGGER.exit();
              return cppAlignment(os.getBufferCopy());
          } finally {
              os.close();
          }
      }
docs: Marshall the attribute with attribute config
  
  @return result of the marshall action
  @throws DevFailed if marshall action failed