@java.lang.Override
  public com.google.protobuf.ByteString getWorkloadClusterBytes() {
    java.lang.Object ref = workloadCluster_;
    if (ref instanceof java.lang.String) {
      com.google.protobuf.ByteString b =
          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
      workloadCluster_ = b;
      return b;
    } else {
      return (com.google.protobuf.ByteString) ref;
    }
  }
<pre>
Optional. Immutable. The WorkloadCluster on which to create the Deployment.
This field should only be passed when the deployment_level of the source
blueprint specifies deployments on workload clusters e.g.
WORKLOAD_CLUSTER_DEPLOYMENT.
</pre>

<code>
string workload_cluster = 13 [(.google.api.field_behavior) = IMMUTABLE, (.google.api.field_behavior) = OPTIONAL];
</code>

@return The bytes for workloadCluster.
java-telcoautomation/proto-google-cloud-telcoautomation-v1/src/main/java/com/google/cloud/telcoautomation/v1/Deployment.java