Enum CacheTtl 

#[non_exhaustive]
pub enum CacheTtl {
    Ephemeral,
    OneHour,
}

Prompt-cache TTL variant for the Anthropic API.

When used as a TOML config value the accepted strings are "ephemeral" and "1h". On the wire (Anthropic API), OneHour serializes as "1h" inside the cache_control.ttl field.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Ephemeral

Default ephemeral TTL (~5 minutes). No beta header required.

OneHour

Extended 1-hour TTL. Requires the extended-cache-ttl-2025-04-25 beta header. Cache writes cost approximately 2× more than Ephemeral.

Implementations

impl CacheTtl

pub fn requires_beta(self) -> bool

Returns true when this TTL variant requires the extended-cache-ttl-2025-04-25 beta header to be sent with each request.

Trait Implementations

impl Clone for CacheTtl

fn clone(&self) -> CacheTtl

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for CacheTtl

impl Debug for CacheTtl

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

Formats the value using the given formatter.

impl Default for CacheTtl

fn default() -> CacheTtl

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for CacheTtl

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for CacheTtl

impl PartialEq for CacheTtl

fn eq(&self, other: &CacheTtl) -> 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 CacheTtl

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 StructuralPartialEq for CacheTtl