public Builder mergeStretchedClusterConfig(
          com.google.cloud.vmwareengine.v1.StretchedClusterConfig value) {
        if (stretchedClusterConfigBuilder_ == null) {
          if (((bitField0_ & 0x00000004) != 0)
              && stretchedClusterConfig_ != null
              && stretchedClusterConfig_
                  != com.google.cloud.vmwareengine.v1.StretchedClusterConfig.getDefaultInstance()) {
            getStretchedClusterConfigBuilder().mergeFrom(value);
          } else {
            stretchedClusterConfig_ = value;
          }
        } else {
          stretchedClusterConfigBuilder_.mergeFrom(value);
        }
        if (stretchedClusterConfig_ != null) {
          bitField0_ |= 0x00000004;
          onChanged();
        }
        return this;
      }
<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