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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:
 def format(self, **kwargs):
 """Format and combine the name, subscript, and superscript"""

        name = self.name.format(**kwargs)

        subs = []
        if self.sub is not None:
            subs = [self.sub.format(**kwargs)]
        supers = []
        if self.sup is not None:
            supers = [self.sup.format(**kwargs)]

        return render_unicode_sub_super(
            name, subs, supers, sub_first=True, translate_symbols=True,
            unicode_sub_super=self.unicode_sub_super)