@GrpcGlobalClientInterceptor
    @Order(InterceptorOrder.ORDER_TRACING_METRICS)
    @ConditionalOnMissingBean
    public MetricCollectingClientInterceptor metricCollectingClientInterceptor(final MeterRegistry registry) {
        return new MetricCollectingClientInterceptor(registry);
    }
Creates a {@link ClientInterceptor} that collects metrics about incoming and outgoing requests and responses.

@param registry The registry used to create the metrics.
@return The newly created MetricCollectingClientInterceptor bean.
grpc-client-spring-boot-starter/src/main/java/net/devh/boot/grpc/client/autoconfigure/GrpcClientMetricAutoConfiguration.java