{"ast_node_type":"variable","tokens":[{"end":22,"kind":"keyword","start":0,"text":"let"}]}
        let attr_str =
        let span = meta.name_value_literal_span().unwrap_or_else(|| meta.span());
            &format!("`#[doc(alias{})]`", if is_list { "(\"...\")" } else { " = \"...\"" });