Struct TokenUsage 

pub struct TokenUsage {
    pub input_tokens: u64,
    pub output_tokens: u64,
    pub cache_read_tokens: u64,
    pub cache_write_tokens: u64,
}

Token usage for a message

Fields

input_tokens: u64

output_tokens: u64

cache_read_tokens: u64

Cache read tokens (from cache_read_input_tokens in JSONL)

cache_write_tokens: u64

Cache creation tokens (from cache_creation_input_tokens in JSONL)

Implementations

impl TokenUsage

pub fn total(&self) -> u64

Total tokens including cache reads and writes

This is the sum of all token types:

• input_tokens: Regular input tokens (not cached)
• output_tokens: Generated tokens
• cache_read_tokens: Tokens read from cache (cache hits)
• cache_write_tokens: Tokens written to cache (cache creation)

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

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<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for TokenUsage

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

where __S: Serializer,

Serialize this value into the given Serde serializer.