pub trait RequestTracing {
// Provided method
fn trace_request<'life0, 'life1, 'async_trait>(
&'life0 self,
client: &'life1 Client,
request: Request,
) -> Pin<Box<dyn Future<Output = Result<Response>> + Send + 'async_trait>>
where Self: Sync + 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait { ... }
}