vibrator/1.x/example/android.hardware.vibrator@1.x-service.example.xml

<manifest version="1.0" type="device">
    <hal format="hidl">
        <name>android.hardware.vibrator</name>
        <transport>hwbinder</transport>
        <version>1.4</version>
        <interface>
            <name>IVibrator</name>
            <instance>default</instance>
        </interface>
    </hal>
</manifest>