How to get a specific service instance in Spring Cloud Zookeeper?

Question

Java

Good afternoon.
We are currently considering using Spring Cloud Zookeeper for Service Discovery.
In some cases, we need the ability to get not any service by id , but its specific instance (we have a Web socket on it). Is it possible? How?
Perhaps someone else has worked with this spring module - is it possible to use the RMI/RPC interface instead of REST?