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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 remove_widget(self, widget):
 """Remove the given widget from the tooltip :param widget: the widget to remove :type widget: QtGui.QWidget :returns: None :rtype: None :raises: KeyError """

        button = self._buttons.pop(widget)
        self.layout().removeWidget(button)
        button.deleteLater()