public static PrometheusMeterRegistry newRegistry(PrometheusRegistry registry) {
        return newRegistry(registry, Clock.SYSTEM);
    }
Returns a newly-created {@link PrometheusMeterRegistry} instance with the specified
{@link PrometheusRegistry}.
prometheus1/src/main/java/com/linecorp/armeria/common/prometheus/PrometheusMeterRegistries.java