def METHOD_NAME(path: Optional[Path] = None) -> Dict[str, Dict[str, str]]:
    path = path or MAP_PATH
    df = pd.read_csv(path, keep_default_na=False)
    df = df.set_index("trail")
    if sort:
        df = df.sort_index()
        df.to_csv(path, index=True)
    return df.to_dict(orient="index")