[Gazpacho] Custom Widgets with Python+Gazpacho

[Nathan R. Yergler]

I'm working on a prototype app that needs to have a custom drawing
widget.  I found a simple tutorial for writing a Cairo-drawing widget
(http://www.oluyede.org/blog/writing-a-widget-using-cairo-and-pygtk-28/),
but I'm not exactly sure how to hook up custom widgets with Gazpacho.  I
see they have a "Creation Function" property, but I'm not sure what
that's supposed to be/return.  Is it just any Python callable?  And it
returns...? Hooked up by signal_autoconnect()?

Sorry if I missed this somewhere in the wiki, etc.  Thanks for any help
you can provide.

Nathan