I see axum metrics exported, but non of my own. How to do that?

[dzmitry-lahoda]

I have next code.

axum_prometheus::metrics::describe_gauge!("test_where", "ASD");
                
    let (prometheus_layer, metric_handle) = PrometheusMetricLayerBuilder::new()
    .with_prefix("builder-example")
    // ignore reporting requests that match "/metrics"
    .with_ignore_pattern("/metrics")
    // if the any of the second argument matches, report them at the `/foo` endpoint
    .with_group_patterns_as("/foo", &["/foo/:bar", "/foo/:bar/:baz"])
    // build a custom PrometheusHandle
    .with_metrics_from_fn(|| {
        PrometheusBuilder::new()
            .set_buckets_for_metric(
                Matcher::Full(AXUM_HTTP_REQUESTS_DURATION_SECONDS.to_string()),
                SECONDS_DURATION_BUCKETS,
            )
            .unwrap()
            
            .install_recorder()
            .unwrap()
    })
    .build_pair();

    // build our application with a single route
    let app = Router::new().route(
        "/",
        get(
            |ConnectInfo(remote_addr): ConnectInfo<SocketAddr>| async move {
                log::error!("hm");
                axum_prometheus::metrics::increment_gauge!("test_where", 42.0, &[("chain_id", "composable")]);
                format!("Hello, {remote_addr:?}!\r\n")
            },
        ),
    ). 
    route("/metrics", get(|| async move { metric_handle.render() }))
    .layer(prometheus_layer);

I open main page several times. Only what I see are axum metrics, never added by me.