Module metrics 

Observability: metrics collection and (optional) Prometheus export.

MetricsCollector is always available and dependency-free. When the metrics feature is enabled, prometheus::PrometheusExporter renders snapshots in Prometheus text format.

Re-exports

pub use collector::MetricsCollector;

pub use collector::MetricsSnapshot;

Modules

collector

Lightweight, dependency-free metrics collection.

prometheusmetrics

Prometheus exposition for collected metrics.