def obj_make_compatible(self, primitive, target_version):
        super(Instance, self).obj_make_compatible(primitive, target_version)
        target_version = versionutils.convert_version_to_tuple(target_version)
        if target_version < (2, 1) and 'services' in primitive:
            del primitive['services']
dataset/ETHPy150Open BU-NU-CLOUD-SP16/Trusted-Platform-Module-nova/nova/objects/instance.py/Instance.obj_make_compatible/original