{"ast_node_type":"other","tokens":[{"end":68,"kind":"keyword","start":0,"text":"($tcx.query_system.fns.local_providers.$name)($tcx,"}]}
            ($tcx.query_system.fns.local_providers.$name)($tcx, key)
        if let Some(key) = $key.as_local_key() {
        } else {