>>> from pgi.repository import Gio
>>> Gio.SimpleAction
<class 'Gio.SimpleAction'>
>>> Gio.SimpleAction.new("now", None)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "<string>", line 13, in new
TypeError: new() argument 'parameter_type'(2): None is not a structure object