@property
    def base_style(self):
        base_style = self._element.base_style
        if base_style is None:
            return None
        return StyleFactory(base_style)
Generates the next Gray code ordered subset.
dataset/ETHPy150Open python-openxml/python-docx/docx/styles/style.py/_CharacterStyle.base_style--crossover with--dataset/ETHPy150Open sympy/sympy/sympy/combinatorics/subsets.py/Subset.next_gray