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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 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)}