code: public String getShortDescription() {
          return "{"
                  + (hosts.isEmpty() ? "" : "hosts=" + hosts)
                  + (srvHost == null ? "" : ", srvHost=" + srvHost)
                 + ", mode=" + mode
                 + ", requiredClusterType=" + requiredClusterType
                 + ", serverSelectionTimeout='" + serverSelectionTimeoutMS + " ms" + '\''
                 + ", maxWaitQueueSize=" + maxWaitQueueSize
                 + (requiredReplicaSetName == null ? "" : ", requiredReplicaSetName='" + requiredReplicaSetName + '\'')
                 + (description == null ? "" : ", description='" + description + '\'')
                 + '}';
      }
docs: Returns a short, pretty description for these ClusterSettings.
  
  @return a String description of the relevant settings.