@Bean
    public ShenyuPlugin metricsPlugin() {
        return new MetricsPlugin();
    }
Logging plugin.

@return the shenyu plugin
shenyu-spring-boot-starter/shenyu-spring-boot-starter-plugin/shenyu-spring-boot-starter-plugin-metrics/src/main/java/org/apache/shenyu/springboot/starter/plugin/metrics/MetricsPluginConfiguration.java