google-genai-kotlin/com.google.genai.kotlin.types/CreateCachedContentConfig/ttl

ttl

@Serializable(with = DurationStringSerializer::class)
val ttl: Duration? = null

The TTL for this resource. The expiration time is computed: now + TTL. It is a duration string, with up to nine fractional digits, terminated by 's'. Example: "3.5s".