private com.google.protobuf.SingleFieldBuilderV3<
            com.google.cloud.vmwareengine.v1.ExternalAddress,
            com.google.cloud.vmwareengine.v1.ExternalAddress.Builder,
            com.google.cloud.vmwareengine.v1.ExternalAddressOrBuilder>
        getExternalAddressFieldBuilder() {
      if (externalAddressBuilder_ == null) {
        externalAddressBuilder_ =
            new com.google.protobuf.SingleFieldBuilderV3<
                com.google.cloud.vmwareengine.v1.ExternalAddress,
                com.google.cloud.vmwareengine.v1.ExternalAddress.Builder,
                com.google.cloud.vmwareengine.v1.ExternalAddressOrBuilder>(
                getExternalAddress(), getParentForChildren(), isClean());
        externalAddress_ = null;
      }
      return externalAddressBuilder_;
    }
<pre>
Required. The initial description of a new external IP address.
</pre>

<code>
.google.cloud.vmwareengine.v1.ExternalAddress external_address = 2 [(.google.api.field_behavior) = REQUIRED];
</code>
java-vmwareengine/proto-google-cloud-vmwareengine-v1/src/main/java/com/google/cloud/vmwareengine/v1/CreateExternalAddressRequest.java