How to use the munch.Munch.__setattr__ function in munch

def __setattr__(self, k, v):
        """Recursive.

        >>> x=AutoBunch()
        >>> setattr(x, 'mega.name', 'xy')

        """
        k2, _, k3 = k.partition('.')
        if k3:
            self.__getattr__(k2).__setattr__(k3, v)
        else:
            Munch.__setattr__(self, k, v)