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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 hide_busy(self):
 """Unlock buttons A helper function to indicate processing is done."""

        self.progress_bar.hide()
        self.parent.pbnNext.setEnabled(True)
        self.parent.pbnBack.setEnabled(True)
        self.parent.pbnCancel.setEnabled(True)
        self.parent.repaint()
        disable_busy_cursor()