pub trait Function<T, R>{
// Required method
fn get<'life0, 'life1, 'async_trait>(
&'life0 mut self,
t: &'life1 T,
) -> Pin<Box<dyn Future<Output = Result<R>> + Send + 'async_trait>>
where Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait;
}