public com.google.cloud.telcoautomation.v1.OrchestrationClusterOrBuilder
        getOrchestrationClusterOrBuilder() {
      if (orchestrationClusterBuilder_ != null) {
        return orchestrationClusterBuilder_.getMessageOrBuilder();
      } else {
        return orchestrationCluster_ == null
            ? com.google.cloud.telcoautomation.v1.OrchestrationCluster.getDefaultInstance()
            : orchestrationCluster_;
      }
    }
<pre>
Required. The resource being created
</pre>

<code>
.google.cloud.telcoautomation.v1.OrchestrationCluster orchestration_cluster = 3 [(.google.api.field_behavior) = REQUIRED];
</code>
java-telcoautomation/proto-google-cloud-telcoautomation-v1/src/main/java/com/google/cloud/telcoautomation/v1/CreateOrchestrationClusterRequest.java