def _get_configs_path():
paths = []<EOL>xdg_paths = [<EOL>path for path in base_dirs.load_config_paths('<STR_LIT>', '<STR_LIT>')<EOL>]<EOL>paths.extend([path for path in CONFS_PATH if os.path.exists(path)])<EOL>paths.extend(reversed(xdg_paths))<EOL>return paths<EOL>
Get a list of possible configuration files, from the following
    sources:
    1. All files that exists in constants.CONFS_PATH.
    2. All XDG standard config files for "lago.conf", in reversed
    order of importance.


    Returns:
        list(str): list of files