code: @SuppressWarnings("WeakerAccess")
    public Cluster resizeCluster(String instanceId, String clusterId, int numServeNodes) {
      return ApiExceptions.callAndTranslateApiException(
          resizeClusterAsync(instanceId, clusterId, numServeNodes));
    }
docs: Resizes the cluster's node count. Please note that only clusters that belong to a PRODUCTION
  instance can be resized.
  
  <p>Sample code:
  
  <pre>{@code
  Cluster cluster = client.resizeCluster("my-instance", "my-cluster", 30);
  }</pre>