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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 last(self):
 """ Generate query parameters for the last page """


        if self.limit > self.total:
            return None
        elif self.offset >= self.total:
            return None
        else:
            offset = (self.total / self.limit) * self.limit
            return {'page[offset]': offset, 'page[limit]': self.limit}