Struct ProviderUsageSnapshot 

pub struct ProviderUsageSnapshot {
    pub input_tokens: Option<u64>,
    pub output_tokens: Option<u64>,
    pub total_tokens: Option<u64>,
    pub reasoning_tokens: Option<u64>,
    pub cache_creation_input_tokens: Option<u64>,
    pub cache_read_input_tokens: Option<u64>,
    pub cache_write_input_tokens: Option<u64>,
}

Raw authoritative usage fields preserved from provider terminal events.

Each field remains optional so callers can distinguish an explicit provider-reported zero from an omitted value. Flat counters on StreamHandlingOutput remain the normalized compatibility view.

Fields

input_tokens: Option<u64>

output_tokens: Option<u64>

total_tokens: Option<u64>

reasoning_tokens: Option<u64>

cache_creation_input_tokens: Option<u64>

cache_read_input_tokens: Option<u64>

cache_write_input_tokens: Option<u64>

OpenAI Responses cache-write volume. This is raw provider metadata and is not folded into the disjoint legacy prompt-cache counters.

Trait Implementations

impl Clone for ProviderUsageSnapshot

fn clone(&self) -> ProviderUsageSnapshot

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ProviderUsageSnapshot

impl Debug for ProviderUsageSnapshot

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

Formats the value using the given formatter.

impl Default for ProviderUsageSnapshot

fn default() -> ProviderUsageSnapshot

Returns the “default value” for a type.

impl Eq for ProviderUsageSnapshot

impl PartialEq for ProviderUsageSnapshot

fn eq(&self, other: &ProviderUsageSnapshot) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for ProviderUsageSnapshot