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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 getMechanismName(self):
 """Return the authentication mechanism name."""

        if self._server_side:
            mech = self._authenticator.current_mech
            return mech.getMechanismName() if mech else None
        else:
            return getattr(self._authenticator, 'authMech', None)