Trait SpanCombinator 

pub trait SpanCombinator {
    // Required methods
    fn record_token_usage<U>(&self, usage: &U)
       where U: GetTokenUsage;
    fn record_response_metadata<R>(&self, response: &R)
       where R: ProviderResponseExt;
    fn record_model_input<T>(&self, messages: &T)
       where T: Serialize;
    fn record_model_output<T>(&self, messages: &T)
       where T: Serialize;
}

A trait designed specifically to be used with Spans for the purpose of recording telemetry. Implemented for tracing::Span to record GenAI semantic convention fields.

Required Methods

fn record_token_usage<U>(&self, usage: &U)

where U: GetTokenUsage,

Record Rig-normalized token usage fields on the span.

fn record_response_metadata<R>(&self, response: &R)

where R: ProviderResponseExt,

Record provider response metadata such as response ID and model name.

fn record_model_input<T>(&self, messages: &T)

where T: Serialize,

Record serialized model input messages.

fn record_model_output<T>(&self, messages: &T)

where T: Serialize,

Record serialized model output messages.

Dyn Compatibility

This trait is not dyn compatible.

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

Implementations on Foreign Types

impl SpanCombinator for Span

fn record_token_usage<U>(&self, usage: &U)

where U: GetTokenUsage,

fn record_response_metadata<R>(&self, response: &R)

where R: ProviderResponseExt,

fn record_model_input<T>(&self, input: &T)

where T: Serialize,

fn record_model_output<T>(&self, output: &T)

where T: Serialize,

Implementors