backend/bms_app/services/operations/restore.py [70:77]:
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        )
        missing_attrs = [
            attr for attr in required_attrs if getattr(cls, attr) is None
        ]
        if missing_attrs:
            raise NotImplementedError(
                f'{cls.__name__} missing required class variables: {missing_attrs}'
            )
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backend/bms_app/services/operations/wave.py [54:61]:
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        )
        missing_attrs = [
            attr for attr in required_attrs if getattr(cls, attr) is None
        ]
        if missing_attrs:
            raise NotImplementedError(
                f'{cls.__name__} missing required class variables: {missing_attrs}'
            )
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