Struct Usage 

#[non_exhaustive]
pub struct Usage {
    pub total_tokens: u64,
    pub input_tokens: u64,
    pub output_tokens: u64,
    pub thought_tokens: Option<u64>,
    pub cached_read_tokens: Option<u64>,
    pub cached_write_tokens: Option<u64>,
}

Available on crate feature unstable_protocol_v2 only.

UNSTABLE

This capability is not part of the spec yet, and may be removed or changed at any point.

Token usage information for a prompt turn.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

total_tokens: u64

Sum of all token types across session.

input_tokens: u64

Total input tokens across all turns.

output_tokens: u64

Total output tokens across all turns.

thought_tokens: Option<u64>

Total thought/reasoning tokens

cached_read_tokens: Option<u64>

Total cache read tokens.

cached_write_tokens: Option<u64>

Total cache write tokens.

Implementations

impl Usage

pub fn new(total_tokens: u64, input_tokens: u64, output_tokens: u64) -> Self

Available on crate feature unstable_end_turn_token_usage only.

pub fn thought_tokens(self, thought_tokens: impl IntoOption<u64>) -> Self

Available on crate feature unstable_end_turn_token_usage only.

Total thought/reasoning tokens

pub fn cached_read_tokens( self, cached_read_tokens: impl IntoOption<u64>, ) -> Self

Available on crate feature unstable_end_turn_token_usage only.

Total cache read tokens.

pub fn cached_write_tokens( self, cached_write_tokens: impl IntoOption<u64>, ) -> Self

Available on crate feature unstable_end_turn_token_usage only.

Total cache write 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

Formats the value using the given formatter.

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

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for Usage

impl IntoV1 for Usage

Available on crate feature unstable_end_turn_token_usage only.

type Output = Usage

The corresponding v1 type.

fn into_v1(self) -> Result<Self::Output>

Converts this value into the corresponding v1 type.

impl JsonSchema for Usage

fn schema_name() -> Cow<'static, str>

The name of the generated JSON Schema.

fn schema_id() -> Cow<'static, str>

Returns a string that uniquely identifies the schema produced by this type.

fn json_schema(generator: &mut SchemaGenerator) -> Schema

Generates a JSON Schema for this type.

fn inline_schema() -> bool

Whether JSON Schemas generated for this type should be included directly in parent schemas, rather than being re-used where possible using the $ref keyword.

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::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Usage