private void maybeForceBuilderInitialization() {
      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
        getCreateTimeFieldBuilder();
        getEndTimeFieldBuilder();
      }
    }
<pre>
Metadata for long-running operations.
</pre>

Protobuf type {@code google.cloud.workstations.v1.OperationMetadata}
java-workstations/proto-google-cloud-workstations-v1/src/main/java/com/google/cloud/workstations/v1/OperationMetadata.java