private com.google.protobuf.SingleFieldBuilderV3<
            com.google.cloud.vmwareengine.v1.VmwareEngineNetwork,
            com.google.cloud.vmwareengine.v1.VmwareEngineNetwork.Builder,
            com.google.cloud.vmwareengine.v1.VmwareEngineNetworkOrBuilder>
        getVmwareEngineNetworkFieldBuilder() {
      if (vmwareEngineNetworkBuilder_ == null) {
        vmwareEngineNetworkBuilder_ =
            new com.google.protobuf.SingleFieldBuilderV3<
                com.google.cloud.vmwareengine.v1.VmwareEngineNetwork,
                com.google.cloud.vmwareengine.v1.VmwareEngineNetwork.Builder,
                com.google.cloud.vmwareengine.v1.VmwareEngineNetworkOrBuilder>(
                getVmwareEngineNetwork(), getParentForChildren(), isClean());
        vmwareEngineNetwork_ = null;
      }
      return vmwareEngineNetworkBuilder_;
    }
<pre>
Required. The initial description of the new VMware Engine network.
</pre>

<code>
.google.cloud.vmwareengine.v1.VmwareEngineNetwork vmware_engine_network = 3 [(.google.api.field_behavior) = REQUIRED];
</code>
java-vmwareengine/proto-google-cloud-vmwareengine-v1/src/main/java/com/google/cloud/vmwareengine/v1/CreateVmwareEngineNetworkRequest.java