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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 ensure_release_scheme(self, expected_scheme):
 """ Make sure the release scheme is correctly configured. :param expected_scheme: The expected release scheme (a string). :raises: :exc:`~exceptions.TypeError` when :attr:`release_scheme` doesn't match the expected release scheme. """

        if self.release_scheme != expected_scheme:
            msg = "Repository isn't using '%s' release scheme!"
            raise TypeError(msg % expected_scheme)