How to use the pyreferrer.referrer.Referrer function in pyreferrer

known_url = rules.get(url.netloc + url.path)\
                                    or rules.get(domain_info.registered_domain + url.path)\
                                    or rules.get(url.netloc)\
                                    or rules.get(domain_info.registered_domain)
            
            if known_url:
                referrer['label'] = known_url['label']
                referrer['type'] = known_url['type']
                referrer['query'] = Referrer.parse_query_string(url, known_url.get('parameters'))
        elif user_agent_info['registered_domain']:
            known_url = rules.get(user_agent_info['registered_domain'])

            if known_url:
                referrer['label'] = known_url['label']
                referrer['type'] = known_url['type']
                referrer['query'] = Referrer.parse_query_string(url, known_url.get('parameters'))
        else:
            referrer['type'] = Referrer.Types.INVALID if raw_url else Referrer.Types.DIRECT

        referrer['google_search_type'] = Referrer.google_search_type(referrer['type'], referrer['label'], referrer['path'])

        return referrer