@java.lang.Override
    public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(clusterId_)) {
        com.google.protobuf.GeneratedMessageV3.writeString(output, 1, clusterId_);
      }
      com.google.protobuf.GeneratedMessageV3.serializeStringMapTo(
          output, internalGetNodeTypeConfigs(), NodeTypeConfigsDefaultEntryHolder.defaultEntry, 7);
      if (((bitField0_ & 0x00000001) != 0)) {
        output.writeMessage(8, getStretchedClusterConfig());
      }
      getUnknownFields().writeTo(output);
    }
<pre>
Optional. Configuration of a stretched cluster. Required for STRETCHED
private clouds.
</pre>

<code>
.google.cloud.vmwareengine.v1.StretchedClusterConfig stretched_cluster_config = 8 [(.google.api.field_behavior) = OPTIONAL];
</code>
java-vmwareengine/proto-google-cloud-vmwareengine-v1/src/main/java/com/google/cloud/vmwareengine/v1/PrivateCloud.java