Expected Functionality of setupNodes Function

Hello, 

I was wondering what the expected functionality of the setupNodes function (pictured below) in the ECSClient.java file should be. In the current implementation of this milestone, from my understanding, the servers are initialized from the command line, and thus the ECS will not be setting up the servers, as in previous iterations of this milestone. Additionally, it is not required that we use Zookeeper in our implementation of milestone 2. With that being said, I was wondering if there was an expected use for this function, and what it would be. 

Any clarification would be much appreciated.

Thank you!