title: Dbus function with a OUT (sbb) param
body: <p>I would like to call a DBus function with Python3. I made an introspection on it :</p>
  
  <pre><code>&lt;method name="GetItemStatus"&gt;
    &lt;arg name="absolutePath" direction="in" type="s" /&gt;
    &lt;arg name="status" direction="out" type="(sbb)" /&gt;
  &lt;/method&gt;
  </code></pre>
  
  <p>The first param is a simple string, it's ok, but I don't know how to send the second one (status)...</p>
  
  <p>Could someone help me please ?</p>
  
  <p>Seb</p>