}
        return new URL(currentUrl);
    }

    /**
     * Gets child URL extraction rules from configuration.
     *
     * @param responseData the response data from crawling
     * @param resultData the result data
     * @return stream of tag-attribute pairs for URL extraction
     */
    @Override

            }
            return extractJsonStringFallback(json, key);
        }
        return "";
    }

    /**
     * Fallback regex-based extraction for string values.
     *
     * @param json the JSON response
     * @param key the key to extract
     * @return the extracted string value
     */

		secretKey, err := getTokenSigningKey()
		if err != nil {
			return nil, err
		}
		keys = append(keys, secretKey)
	}

	// Iterate over all keys and return with the first successful claim extraction
	for _, key := range keys {
		jwtClaims, err = getClaimsFromTokenWithSecret(u.Credentials.SessionToken, key)
		if err == nil {
			break
		}
	}
	return jwtClaims, err
}