ayun_cache/traits/
driver.rs

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#[async_trait::async_trait]
pub trait CacheDriver: Sync + Send {
    async fn has(&self, key: &str) -> super::CacheResult<bool>;

    async fn get(&self, key: &str) -> super::CacheResult<Option<String>>;

    async fn insert(&self, key: &str, value: &str) -> super::CacheResult<()>;

    async fn remove(&self, key: &str) -> super::CacheResult<()>;

    async fn clear(&self) -> super::CacheResult<()>;
}