Struct Usage 

pub struct Usage {
    pub input_tokens: u64,
    pub output_tokens: u64,
    pub total_tokens: u64,
    pub cached_input_tokens: u64,
    pub cache_write_tokens: u64,
    pub reasoning_tokens: u64,
}

Normalized token accounting. Missing provider counters remain zero.

Fields

input_tokens: u64

Every input token: uncached, read from a cache and written to one.

output_tokens: u64

Every output token, reasoning included.

total_tokens: u64

cached_input_tokens: u64

The part of input_tokens read from the provider’s prompt cache.

cache_write_tokens: u64

The part of input_tokens written to the provider’s prompt cache.

reasoning_tokens: u64

The part of output_tokens spent reasoning.

Trait Implementations

impl Clone for Usage

fn clone(&self) -> Usage

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Usage

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

Formats the value using the given formatter.

impl Default for Usage

fn default() -> Usage

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Usage

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for Usage

fn eq(&self, other: &Usage) -> 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 Usage

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 Usage

impl Eq for Usage

impl StructuralPartialEq for Usage