{"ast_node_type":"variable","tokens":[{"end":92,"kind":"keyword","start":0,"text":"let"}]}
        let token = sema.parse_or_expand(file_id).covering_element(tokens[0]).into_token()?;
            hir::InMacroFile::new(macro_file, descended).upmap_once(db);
        let attr = token.parent_ancestors().find_map(ast::Attr::cast)?;