Struct Usage 

pub struct Usage {
    pub input_tokens: Option<u32>,
    pub output_tokens: Option<u32>,
    pub total_tokens: Option<u32>,
    pub reasoning_tokens: Option<u32>,
    pub cached_input_tokens: Option<u32>,
}

Usage information for a language model call.

Fields

input_tokens: Option<u32>

The number of input (prompt) tokens used.

output_tokens: Option<u32>

The number of output (completion) tokens used.

total_tokens: Option<u32>

The total number of tokens as reported by the provider. This might differ from input + output and include reasoning tokens.

reasoning_tokens: Option<u32>

The number of reasoning tokens used.

cached_input_tokens: Option<u32>

The number of cached input tokens.

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 Eq for Usage

impl StructuralPartialEq for Usage