code: @Bean
  	public DubboReferanceCustomizationer dubboConsumerCustomizationer() {
  		return new DubboReferanceCustomizationer() {
  			
  			@Override
  			public void customDubboReferance(String appId, String busCode, ReferenceConfig<GenericService> referenceConfig) {
  				Logger logger = LoggerFactory.getLogger(getClass());
  				logger.info("custom dubbo consumer!");
  			}
  		};
  	}
docs: This is an optional bean, you can modify Dubbo reference here to change the behavior of consumer
  @return