pub trait GrpcQueryHandler {
type Error: ErrorExt;
// Required method
fn do_query<'life0, 'async_trait>(
&'life0 self,
query: Request,
ctx: QueryContextRef,
) -> Pin<Box<dyn Future<Output = Result<Output, Self::Error>> + Send + 'async_trait>>
where Self: 'async_trait,
'life0: 'async_trait;
}