Struct OverallCost 

pub struct OverallCost {
    pub prompt_tokens: usize,
    pub completion_tokens: usize,
    pub total_tokens: usize,
    pub cost_usd: Option<f64>,
}

Cost ledger carried on an eval Report (E1).

Token buckets accumulate every reported predictor usage; cost_usd is Some only when at least one usage had a model that the configured price book knows. Default is all-zero + None so old reports serialize compatibly under #[serde(default)].

Fields

prompt_tokens: usize

Total prompt tokens across the run.

completion_tokens: usize

Total completion tokens across the run.

total_tokens: usize

Total tokens (prompt + completion).

cost_usd: Option<f64>

Estimated USD cost of the run; None when no priced usage was reported.

Implementations

impl OverallCost

pub fn accumulate(&mut self, usage: &TokenUsage, book: &PriceBook)

Adds a usage report, accumulating token totals and (when priced) the USD estimate.

Trait Implementations

impl Clone for OverallCost

fn clone(&self) -> OverallCost

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for OverallCost

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for OverallCost

fn default() -> OverallCost

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for OverallCost

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for OverallCost

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.