Interface Setter

src/darkbird/persistent_worker.rs:15–23

#[async_trait]
pub trait Setter<K, Doc> {
    async fn init(&self, session: &DatabaseSession);
    async fn handle_setter(
        &self,
        session: &DatabaseSession,
        key: &K,
        document: &Doc,
    ) -> Result<(), Stop>;
}

#[async_trait]
pub trait Getter<K, Doc> {