process
        </li>
        <li><span class="parameter">SYSTEM</span>
          Connection to the system bus for this process
        </li>
        <li><span class="parameter">any_valid_dbus_address</span>
         Connection to the
<a href="https://dbus.freedesktop.org/doc/dbus-tutorial.html#addresses">DBus address</a>.
If an invalid address is passed, its value will be <code>nil</code>.
        </li>
    </ul>




    <h3>Usage:</h3>
    <ul>
        <pre class="example">Bus = <span class="global">requi