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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 server_error(request, template_name='500.html'):
 """ Custom 500 error handler. The exception clause is so broad to capture any 500 errors that may have been generated from getting the response page e.g. if the database was down. If they were not handled they would cause a 500 themselves and form an infinite loop. If no ResponsePage exists for with type ``RESPONSE_HTTP500`` then the default template render view will be used. Templates: :template:`500.html` Context: page A ResponsePage with type ``RESPONSE_HTTP500`` if it exists. """

    try:
        rendered_page = get_response_page(
            request,
            http.HttpResponseServerError,
            'icekit/response_pages/500.html',
            abstract_models.RESPONSE_HTTP500
        )
        if rendered_page is not None:
            return rendered_page
    except Exception:
        pass

    return defaults.server_error(request, template_name)