Trait AsyncInstrument 

pub trait AsyncInstrument<T>: Send + Sync {
    // Required method
    fn observe(&self, measurement: T, attributes: &[KeyValue]);
}

Available on crate features metrics and opentelemetry only.

An SDK implemented instrument that records measurements via callback.

Required Methods

fn observe(&self, measurement: T, attributes: &[KeyValue])

Observes the state of the instrument.

It is only valid to call this within a callback.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors