 frontend is associated with
        a backend, the corresponding backend will also be constructed by the frontend
        upon its construction (unless the user provides the backend instance himself),
        making the sink complete. Therefore, when the frontend is constructed it
        can be registered in the logging core to begin processing records. See the
        <a class="link" href="sink_backends.html" title="Sink backends">Sink Backends</a> section for
        more details on interactions between