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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 generate_routes(config):
 """Generate a list of urls that map to generated proxy views. generate_routes({ 'test_proxy': { 'base_url': 'https://google.com/', 'prefix': '/test_prefix/', 'verify_ssl': False, 'csrf_exempt: False', 'middleware': ['djproxy.proxy_middleware.AddXFF'], 'append_middleware': ['djproxy.proxy_middleware.AddXFF'], 'timeout': 3.0, 'cert': None } }) Required configuration keys: * `base_url` * `prefix` Optional configuration keys: * `verify_ssl`: defaults to `True`. * `csrf_exempt`: defaults to `True`. * `cert`: defaults to `None`. * `timeout`: defaults to `None`. * `middleware`: Defaults to `None`. Specifying `None` causes djproxy to use the default middleware set. If a list is passed, the default middleware list specified by the HttpProxy definition will be replaced with the provided list. * `append_middleware`: Defaults to `None`. `None` results in no changes to the default middleware set. If a list is specified, the list will be appended to the default middleware list specified in the HttpProxy definition or, if provided, the middleware key specificed in the config dict. Returns: [ url(r'^test_prefix/', GeneratedProxy.as_view(), name='test_proxy')), ] """

    routes = []

    for name, config in iteritems(config):
        pattern = r'^%s(?P<url>.*)$' % re.escape(config['prefix'].lstrip('/'))
        proxy = generate_proxy(
            prefix=config['prefix'], base_url=config['base_url'],
            verify_ssl=config.get('verify_ssl', True),
            middleware=config.get('middleware'),
            append_middleware=config.get('append_middleware'),
            cert=config.get('cert'),
            timeout=config.get('timeout'))
        proxy_view_function = proxy.as_view()

        proxy_view_function.csrf_exempt = config.get('csrf_exempt', True)

        routes.append(url(pattern, proxy_view_function, name=name))

    return routes