code: public final Cluster getCluster(String projectId, String zone, String clusterId) {
  
      GetClusterRequest request =
          GetClusterRequest.newBuilder()
              .setProjectId(projectId)
              .setZone(zone)
              .setClusterId(clusterId)
              .build();
      return getCluster(request);
    }
docs: Gets the details of a specific cluster.
  
  <p>Sample code:
  
  <pre><code>
  try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
  String projectId = "";
  String zone = "";
  String clusterId = "";
  Cluster response = clusterManagerClient.getCluster(projectId, zone, clusterId);
  }
  </code></pre>
  
  @param projectId Deprecated. The Google Developers Console [project ID or project
  number](https://support.google.com/cloud/answer/6158840). This field has been deprecated
  and replaced by the name field.
  @param zone Deprecated. The name of the Google Compute Engine
  [zone](/compute/docs/zones#available) in which the cluster resides. This field has been
  deprecated and replaced by the name field.
  @param clusterId Deprecated. The name of the cluster to retrieve. This field has been
  deprecated and replaced by the name field.
  @throws com.google.api.gax.rpc.ApiException if the remote call fails