public com.google.cloud.telcoautomation.v1alpha1.OrchestrationCluster
        getOrchestrationCluster() {
      if (orchestrationClusterBuilder_ == null) {
        return orchestrationCluster_ == null
            ? com.google.cloud.telcoautomation.v1alpha1.OrchestrationCluster.getDefaultInstance()
            : orchestrationCluster_;
      } else {
        return orchestrationClusterBuilder_.getMessage();
      }
    }
<pre>
Required. The resource being created
</pre>

<code>
.google.cloud.telcoautomation.v1alpha1.OrchestrationCluster orchestration_cluster = 3 [(.google.api.field_behavior) = REQUIRED];
</code>

@return The orchestrationCluster.
java-telcoautomation/proto-google-cloud-telcoautomation-v1alpha1/src/main/java/com/google/cloud/telcoautomation/v1alpha1/CreateOrchestrationClusterRequest.java