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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 has_swapped(self):
 """ Check whether any swapping occured on this system since this instance was created. @return a boolean value """

        new_values = self._read_swap_count()
        for key, new_value in new_values.items():
            old_value = self.swap_count.get(key, 0)
            if new_value > old_value:
                return True
        return False