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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 multilingual_flatpage(request, url):
 """ Multilingual flat page view. Models: `multilingual.flatpages.models` Templates: Uses the template defined by the ``template_name`` field, or `flatpages/default.html` if template_name is not defined. Context: flatpage `flatpages.flatpages` object """

    if not url.endswith('/') and settings.APPEND_SLASH:
        return HttpResponseRedirect("%s/" % request.path)
    if not url.startswith('/'):
        url = "/" + url
    f = get_object_or_404(MultilingualFlatPage, url__exact=url, sites__id__exact=settings.SITE_ID)
    # If registration is required for accessing this page, and the user isn't
    # logged in, redirect to the login page.
    if f.registration_required and not request.user.is_authenticated():
        from django.contrib.auth.views import redirect_to_login
        return redirect_to_login(request.path)
    # Serve the content in the language defined by the Django translation module
    # if possible else serve the default language.
    f._default_language = get_language()
    if f.template_name:
        t = loader.select_template((f.template_name, DEFAULT_TEMPLATE))
    else:
        t = loader.get_template(DEFAULT_TEMPLATE)

    # To avoid having to always use the "|safe" filter in flatpage templates,
    # mark the title and content as already safe (since they are raw HTML
    # content in the first place).
    f.title = mark_safe(f.title)
    f.content = mark_safe(f.content)

    c = RequestContext(request, {
        'flatpage': f,
    })
    response = HttpResponse(t.render(c))
    populate_xheaders(request, response, MultilingualFlatPage, f.id)
    return response