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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 __restore_selection(self, start_pos, end_pos):

 """Restore cursor selection from position bounds"""

        cursor = self.textCursor()
        cursor.setPosition(start_pos)
        cursor.setPosition(end_pos, QTextCursor.KeepAnchor)
        self.setTextCursor(cursor)