default DescribeClusterResult describeCluster() {
        return describeCluster(new DescribeClusterOptions());
    }
Get information about the nodes in the cluster, using the default options.
<p>
This is a convenience method for {@link #describeCluster(DescribeClusterOptions)} with default options.
See the overload for more details.

@return The DescribeClusterResult.
clients/src/main/java/org/apache/kafka/clients/admin/Admin.java