Display slug with level by language.

def show_slug_with_level(context, page, lang=None, fallback=True):
    """Display slug with level by language."""
    if not lang:
        lang = context.get('lang', pages_settings.PAGE_DEFAULT_LANGUAGE)

    page = get_page_from_string_or_id(page, lang)
    if not page:
        return ''

    return {'content': page.slug_with_level(lang)}