Would be good to clarify in the method name what we're waiting for, i.e. is this waiting for something that was created via servers.create to be accessible to further REST calls? If so, it would be good to name it with something indicating that so the reason for waiting is clear throughout the code and also so someone doesn't use this to wait for something else -- the wait times in the method matter depending on the scenario and we may not want those same times if waiting for something else, such as a server to boot.