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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 align(self):
 """Assures the previous window area is contained in the new one"""

        nofs = align_to_mmap(self.ofs, 0)
        self.size += self.ofs - nofs    # keep size constant
        self.ofs = nofs
        self.size = align_to_mmap(self.size, 1)