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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 check_impl(self):
 """ sets self.changes to the result of self.changes_impl, then if any member of those checks shows as a change, will return True,None """


        c = False
        for change in self.collect():
            change.check()
            c = c or change.is_change()
        return c, None