docs: @Bean
  	@ConditionalOnMissingBean(RibbonRoutingFilter.class)
  	public RibbonRoutingFilter ribbonRoutingFilter(ProxyRequestHelper helper,
  			RibbonCommandFactory<?> ribbonCommandFactory) {
  		RibbonRoutingFilter filter = new RibbonRoutingFilter(helper, ribbonCommandFactory,
  				this.requestCustomizers);
  		return filter;
  	}