AttributeError: 'HourglassModel' object has no attribute 'Session'

[WilliamYi96]

When I was running this code, it appeared to have an error: AttributeError: 'HourglassModel' object has no attribute 'Session'.
And I think this sentence is hard to follow:
out = self.HG.Session.run(self.HG.output, feed_dict={self.HG.img : np.expand_dims(img, axis = 0)})
Where is the method HG.Session defined?
Is there anyone could give me some suggestions?

[WilliamYi96]

Fixed, If I don't use restore() in hourglass class, then I need to init the session manually by self._init_session().