public com.google.cloud.workstations.v1beta.WorkstationCluster.Builder
        getWorkstationClusterBuilder() {
      bitField0_ |= 0x00000004;
      onChanged();
      return getWorkstationClusterFieldBuilder().getBuilder();
    }
<pre>
Required. Workstation cluster to create.
</pre>

<code>
.google.cloud.workstations.v1beta.WorkstationCluster workstation_cluster = 3 [(.google.api.field_behavior) = REQUIRED];
</code>
java-workstations/proto-google-cloud-workstations-v1beta/src/main/java/com/google/cloud/workstations/v1beta/CreateWorkstationClusterRequest.java