public com.google.cloud.workstations.v1.WorkstationConfig.Host.GceInstance
                .GceConfidentialInstanceConfigOrBuilder
            getConfidentialInstanceConfigOrBuilder() {
          if (confidentialInstanceConfigBuilder_ != null) {
            return confidentialInstanceConfigBuilder_.getMessageOrBuilder();
          } else {
            return confidentialInstanceConfig_ == null
                ? com.google.cloud.workstations.v1.WorkstationConfig.Host.GceInstance
                    .GceConfidentialInstanceConfig.getDefaultInstance()
                : confidentialInstanceConfig_;
          }
        }
<pre>
Optional. A set of Compute Engine Confidential VM instance options.
</pre>

<code>
.google.cloud.workstations.v1.WorkstationConfig.Host.GceInstance.GceConfidentialInstanceConfig confidential_instance_config = 10 [(.google.api.field_behavior) = OPTIONAL];
</code>
java-workstations/proto-google-cloud-workstations-v1/src/main/java/com/google/cloud/workstations/v1/WorkstationConfig.java