Struct CacheMetrics 

pub struct CacheMetrics {
    pub run_id: RunId,
    pub cache_creation_input_tokens: u64,
    pub cache_read_input_tokens: u64,
    pub cached_input_tokens: u64,
    pub timestamp: DateTime<Utc>,
}

Emitted after each model call when the provider reported prompt cache statistics. All fields are zero when the provider did not report cache hits or writes for this call.

Fields

run_id: RunId

Run identifier.

cache_creation_input_tokens: u64

Number of input tokens written to the cache by this call (Anthropic: cache_creation_input_tokens).

cache_read_input_tokens: u64

Number of input tokens served from the cache by this call (Anthropic: cache_read_input_tokens, DeepSeek: prompt_cache_hit_tokens).

cached_input_tokens: u64

Number of input tokens served from the cache by this call (OpenAI: prompt_tokens_details.cached_tokens).

timestamp: DateTime<Utc>

When the metrics were recorded.

Implementations

impl CacheMetrics

pub const fn total_cache_tokens(&self) -> u64

Returns the total cache-related input tokens.

Trait Implementations

impl Clone for CacheMetrics

fn clone(&self) -> CacheMetrics

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CacheMetrics

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for CacheMetrics

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for CacheMetrics

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.