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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 tag(request, tag_id=None):
 """ The view used to render a tag after the page has loaded. """

    html = get_tag_html(tag_id)
    t = template.Template(html)
    c = template.RequestContext(request)

    return HttpResponse(t.render(c))