public Builder setGcePd(
          com.google.cloud.workstations.v1beta.WorkstationConfig.EphemeralDirectory
                  .GcePersistentDisk.Builder
              builderForValue) {
        if (gcePdBuilder_ == null) {
          directoryType_ = builderForValue.build();
          onChanged();
        } else {
          gcePdBuilder_.setMessage(builderForValue.build());
        }
        directoryTypeCase_ = 3;
        return this;
      }
<pre>
An EphemeralDirectory backed by a Compute Engine persistent disk.
</pre>

<code>
.google.cloud.workstations.v1beta.WorkstationConfig.EphemeralDirectory.GcePersistentDisk gce_pd = 3;
</code>
java-workstations/proto-google-cloud-workstations-v1beta/src/main/java/com/google/cloud/workstations/v1beta/WorkstationConfig.java