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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 should_not_sample_route(request):
 """Decided whether current request route should be sampled or not. :param: current active pyramid request :returns: boolean whether current request route is blacklisted. """

    blacklisted_routes = request.registry.settings.get(
        'zipkin.blacklisted_routes', [])

    if not blacklisted_routes:
        return False
    route_mapper = request.registry.queryUtility(IRoutesMapper)
    route_info = route_mapper(request).get('route')
    return (route_info and route_info.name in blacklisted_routes)