{"ast_node_type":"other","tokens":[{"end":43,"kind":"keyword","start":0,"text":"cfg.maybe_emit_expr_attr_err(attr);"}]}
        cfg.maybe_emit_expr_attr_err(attr);
    fn pre_flat_map_node_collect_attr(cfg: &StripUnconfigured<'_>, attr: &ast::Attribute) {
    }