pub trait Middleware {
type Payload;
// Required method
fn process<'life0, 'async_trait>(
&'life0 self,
sx: Sender<Self::Payload>,
rx: Receiver<Self::Payload>,
) -> Pin<Box<dyn Future<Output = ()> + Send + 'async_trait>>
where Self: 'async_trait,
'life0: 'async_trait;
}