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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:
 async def get_default_min_hwe_kernel(cls) -> typing.Optional[str]: """Default minimum kernel version. The minimum kernel version used on new and commissioned nodes. """

        data = await cls.get_config("default_min_hwe_kernel")
        return None if data is None or data == "" else data