def _unset_confidentiality_offset(self):
    self.__confidentiality_offset = YANGDynClass(base=RestrictedClassType(base_type=six.text_type,                                     restriction_type="dict_key",                                     restriction_arg={'0_BYTES': {}, '30_BYTES': {}, '50_BYTES': {}},), default=six.text_type("0_BYTES"), is_leaf=True, yang_name="confidentiality-offset", parent=self, path_helper=self._path_helper, extmethods=self._extmethods, register_paths=True, namespace='http://openconfig.net/yang/macsec', defining_module='openconfig-macsec', yang_type='macsec-types:confidentiality-offset', is_config=True)