public Builder setOrchestrationCluster(
        com.google.cloud.telcoautomation.v1.OrchestrationCluster.Builder builderForValue) {
      if (orchestrationClusterBuilder_ == null) {
        orchestrationCluster_ = builderForValue.build();
      } else {
        orchestrationClusterBuilder_.setMessage(builderForValue.build());
      }
      bitField0_ |= 0x00000004;
      onChanged();
      return this;
    }
<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