Struct TokenUsage 

pub struct TokenUsage {
    pub prompt_tokens: u64,
    pub completion_tokens: u64,
    pub total_tokens: u64,
}

Token consumption statistics for a single LLM call or aggregated period.

This is a stable, cross-layer value object. Every crate that needs to represent “how many tokens were used” should use this type (or re-export it) instead of defining a local duplicate.

Fields

prompt_tokens: u64

Tokens in the LLM request (prompt / input).

completion_tokens: u64

Tokens in the LLM response (completion / output).

total_tokens: u64

Total tokens consumed (normally prompt + completion).

Implementations

impl TokenUsage

pub fn add_assign(&mut self, other: TokenUsage)

Accumulate another usage snapshot into this one.

pub fn recompute_total(&mut self)

Recompute total_tokens from the two component fields.

Trait Implementations

impl Clone for TokenUsage

fn clone(&self) -> TokenUsage

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TokenUsage

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

Formats the value using the given formatter.

impl Default for TokenUsage

fn default() -> TokenUsage

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for TokenUsage

fn deserialize<__D>( __deserializer: __D, ) -> Result<TokenUsage, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for TokenUsage

fn eq(&self, other: &TokenUsage) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for TokenUsage

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for TokenUsage

impl Eq for TokenUsage

impl StructuralPartialEq for TokenUsage