code: public function getDomainCacheRuleProperties($domain, $ruleId)
      {
          return json_decode(self::getClient()->getDomainCacheRuleProperties($this->sn, $domain, $ruleId));
      }
docs: Get proprieties of cache rule $ruleId og domain $domain
  
  @param string $domain
  @param int $ruleId
  @return object