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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 rollback(self, release):
 """Rolls back the release to the given version."""

        r = self._h._http_resource(
            method='POST',
            resource=('apps', self.name, 'releases'),
            data={'rollback': release}
        )
        return self.releases[-1]