def get_active_language_choices(language_code=None):
    """
    Find out which translations should be visible in the site.
    It returns a tuple with either a single choice (the current language),
    or a tuple with the current language + fallback language.
    """
    from parler import appsettings
    return appsettings.PARLER_LANGUAGES.get_active_choices(language_code)
