{"ast_node_type":"other","tokens":[{"end":50,"kind":"keyword","start":0,"text":"old_folder_name.push('/');"}]}
                        old_folder_name.push('/');
                        let mut old_folder_name = from_path.file_stem()?.to_str()?.to_owned();
                        let from_with_trailing_slash = from.join(&old_folder_name).ok()?;