Attribute Macro metriken::metric

#[metric]

Declare a global metric that can be accessed via the metrics method.

Note that this will change the type of the generated static to be MetricInstance<MetricTy>. It implements both Deref and DerefMut so it can be used much the same as a normal static.

Parameters

• (optional) crate: The path to the metriken crate. This allows the metric macro to be used within other macros that get exported to third-party crates which may not have added metriken to their Cargo.toml.
• (optional) formatter: A function to be used to determine the output name for this metric.