code: public static dnsptrrec get(nitro_service service, String reversedomain) throws Exception{
  		dnsptrrec obj = new dnsptrrec();
  		obj.set_reversedomain(reversedomain);
  		dnsptrrec response = (dnsptrrec) obj.get_resource(service);
  		return response;
  	}
docs: Use this API to fetch dnsptrrec resource of given name .