better way to set signal in Gtk2::SimpleList ?

[Alexandre Jousset <mid gtmp org>]

        Hello list,

        I'm using a Gtk2::SimpleList and it's great.

	But in that list the 5th column is of type 'bool' and I would like to 
set a signal on it when it is toggled. Is there a better way than (the 
ugly-but-it-works):

($slist->get_column(4)->get_cell_renderers)[0]->signal_connect(toggled 
=> \&callback);

        ?

        Thanx !
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