def get_nav_impl():
    with open(path.join(data_folder, '_nav.yml')) as stream:
        nav = yaml.load(stream, Loader=FullLoader)
        nav = process_nav_includes(build_mode, nav)
        return nav
def get_nav_impl():
    with open(path.join(data_folder, '_nav.yml')) as stream:
        nav = yaml.load(stream, Loader=FullLoader)
        nav = process_nav_includes(build_mode, nav)
        return nav