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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 close(self):
 """ if this was a zip'd distribution, any introspection may have resulted in opening or creating temporary files. Call close in order to clean up. """


        if self.tmpdir:
            rmtree(self.tmpdir)
            self.tmpdir = None

        self._contents = None