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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 clean(self):
 """Clear the contents of the build area."""

        if os.path.exists(self.buildroot):
            log.info('Clearing the build area.')
            log.debug('Deleting: %s', self.buildroot)
            shutil.rmtree(self.buildroot)
            os.makedirs(self.buildroot)