@java.lang.Override
  public com.google.protobuf.ByteString getOrchestrationClusterBytes() {
    java.lang.Object ref = orchestrationCluster_;
    if (ref instanceof java.lang.String) {
      com.google.protobuf.ByteString b =
          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
      orchestrationCluster_ = b;
      return b;
    } else {
      return (com.google.protobuf.ByteString) ref;
    }
  }
<pre>
Immutable. Reference to the orchestration cluster on which templates for
this resources will be applied. This should be of format
projects/{project}/locations/{location}/orchestrationClusters/{orchestration_cluster}.
</pre>

<code>
string orchestration_cluster = 5 [(.google.api.field_behavior) = IMMUTABLE, (.google.api.resource_reference) = { ... }
</code>

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