public SearchedResources<RuleDTO> searchRules(final String keyword, final String... selectors) {
        RuleQueryCondition condition = RuleQueryCondition.builder()
                .keyword(keyword)
                .selectors(selectors)
                .namespaceId(SYS_DEFAULT_NAMESPACE_NAMESPACE_ID)
                .switchStatus(true)
                .build();
        return search("/rule/list/search", condition, SEARCHED_RULES_TYPE_REFERENCE);
    }
Fetch the rules by the given conditions.

@param keyword   expected selectors included the word. return all if absent.
@param selectors expected selectors under specified plugins. return all if absent.
@return paginated info with list of {@link RuleDTO}s
shenyu-e2e/shenyu-e2e-client/src/main/java/org/apache/shenyu/e2e/client/admin/AdminClient.java