@Bean
	@ConditionalOnMissingBean(CircuitBreakerFactory.class)
	public CircuitBreakerFactory sentinelCircuitBreakerFactory() {
		SentinelCircuitBreakerFactory factory = new SentinelCircuitBreakerFactory();
		customizers.forEach(customizer -> customizer.customize(factory));
		return factory;
	}
Auto configuration for {@link SentinelCircuitBreaker}.

@author Eric Zhao
@author freeman
spring-cloud-alibaba-starters/spring-cloud-circuitbreaker-sentinel/src/main/java/com/alibaba/cloud/circuitbreaker/sentinel/SentinelCircuitBreakerAutoConfiguration.java