pub trait Impl<E: Error + Clone, C: Control<E>>: 'static + Send {
// Required methods
fn listen<'life0, 'async_trait>(
&'life0 mut self,
) -> Pin<Box<dyn Future<Output = Result<(), E>> + Send + 'async_trait>>
where Self: 'async_trait,
'life0: 'async_trait;
fn observer(&mut self) -> Result<UnboundedReceiver<Events<E>>, E>;
fn control(&self) -> C;
}