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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 unacknowledge_problem_if_not_sticky(self):
 """ Remove the acknowledge if it is not sticky :return: None """

        if hasattr(self, 'acknowledgement') and self.acknowledgement is not None:
            if not self.acknowledgement.sticky:
                self.unacknowledge_problem()