public static PrometheusMeterRegistry newRegistry(CollectorRegistry registry, Clock clock) {
        final PrometheusMeterRegistry meterRegistry = new PrometheusMeterRegistry(
                PrometheusConfig.DEFAULT, requireNonNull(registry, "registry"), requireNonNull(clock, "clock"));
        return configureRegistry(meterRegistry);
    }
Returns a newly-created {@link PrometheusMeterRegistry} instance with the specified
{@link CollectorRegistry} and {@link Clock}.
core/src/main/java/com/linecorp/armeria/common/metric/PrometheusMeterRegistries.java