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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 add_page_if_missing(request):
 """ Returns ``feincms_page`` for request. """


    try:
        page = Page.objects.for_request(request, best_match=True)
        return {
            'leonardo_page': page,
            # DEPRECATED
            'feincms_page': page,
        }
    except Page.DoesNotExist:
        return {}