How to use the saspy.sastabulate.Class function in saspy

def __mul__(self, other):
        if isinstance(other, Class):
            raise SyntaxError('A Class variable cannot be a descendent of a Var')
        return super().__mul__(other)

def as_class(*args, **kwargs):
        return Class(*args, **kwargs)

def classes(*args, labels: list = []):
        label_kwargs = build_kwargs('label', labels, len(args))
        return [Class(args[i], **label_kwargs[i]) for i in range(len(args))]