@java.lang.Override
  public com.google.cloud.workstations.v1beta.WorkstationConfig.PersistentDirectory
      getPersistentDirectories(int index) {
    return persistentDirectories_.get(index);
  }
<pre>
Optional. Directories to persist across workstation sessions.
</pre>

<code>
repeated .google.cloud.workstations.v1beta.WorkstationConfig.PersistentDirectory persistent_directories = 13 [(.google.api.field_behavior) = OPTIONAL];
</code>
java-workstations/proto-google-cloud-workstations-v1beta/src/main/java/com/google/cloud/workstations/v1beta/WorkstationConfig.java