Type Alias TelegramHook 

pub type TelegramHook<T> = Arc<dyn Fn(T) -> BoxFuture<'static, Result<(), AnyError>> + Send + Sync>;

A venture hook: called inline as part of handling a delivery (or a confirm request). Its error is the delivery’s 5xx — which is what makes Telegram retry, and what keeps the dedup key unclaimed.

Aliased Type

pub struct TelegramHook<T> { /* private fields */ }