public Builder addWorkstationClusters(
        int index, com.google.cloud.workstations.v1.WorkstationCluster.Builder builderForValue) {
      if (workstationClustersBuilder_ == null) {
        ensureWorkstationClustersIsMutable();
        workstationClusters_.add(index, builderForValue.build());
        onChanged();
      } else {
        workstationClustersBuilder_.addMessage(index, builderForValue.build());
      }
      return this;
    }
<pre>
The requested workstation clusters.
</pre>

<code>repeated .google.cloud.workstations.v1.WorkstationCluster workstation_clusters = 1;
</code>
java-workstations/proto-google-cloud-workstations-v1/src/main/java/com/google/cloud/workstations/v1/ListWorkstationClustersResponse.java