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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def init_layout(self):
 """ Create the widget in the layout pass after the child widget has been created and intialized. We do this so the child widget does not attempt to use this proxy widget as its parent and because repositioning must be done after the widget is set. """

        self.widget = QGraphicsProxyWidget(self.parent_widget())
        widget = self.widget
        for item in self.child_widgets():
            widget.setWidget(item)
            break
        super(QtGraphicsWidget, self).init_widget()
        super(QtGraphicsWidget, self).init_layout()