def __init__(self, **kwargs: Any) -> None:
        rename_key(kwargs, 'OAC11', 'oac11')
        rename_key(kwargs, 'Supergroup', 'supergroup_desc')
        rename_key(kwargs, 'Group', 'group_desc')
        rename_key(kwargs, 'Subgroup', 'subgroup_desc')
        kwargs['supergroup_code'] = kwargs['oac11'][0:1]
        kwargs['group_code'] = kwargs['oac11'][0:2]
        kwargs['subgroup_code'] = kwargs['oac11']
        super().__init__(**kwargs)