title: What are the three arguments to Gdk.threads_add_idle()?
body: <p>Using python and the <code>gi.repository</code> module, I am trying to call <code>Gdk.threads_add_idle</code>, but I get the error message that three arguments are required. The <a href="http://developer.gnome.org/gdk/2.22/gdk-Threads.html#gdk-threads-add-idle" rel="nofollow">documentation</a>, however, only mentions two args.</p>
  
  <p>You can try the function (on a linux only, i guess) by typing the following in a python interpreter:</p>
  
  <pre><code>from gi.repository import Gdk
  
  Gdk.threads_add_idle(...)
  </code></pre>
  
  <p>Any ideas what the three args are?</p>