pub trait PrometheusHandler {
// Required methods
fn do_query<'life0, 'life1, 'async_trait>(
&'life0 self,
query: &'life1 PromQuery,
query_ctx: QueryContextRef,
) -> Pin<Box<dyn Future<Output = Result<Output>> + Send + 'async_trait>>
where Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait;
fn catalog_manager(&self) -> CatalogManagerRef;
}