public static Set<String> pathKeySet() {
        return new HashSet<>(Arrays.asList(PLUGIN_DATA_ID, SELECTOR_DATA_ID, RULE_DATA_ID, AUTH_DATA_ID,
                META_DATA_ID, PROXY_SELECTOR_DATA_ID, DISCOVERY_DATA_ID));
    }
get path key set.

@return path key set
shenyu-common/src/main/java/org/apache/shenyu/common/constant/ApolloPathConstants.java