Get the absolute name of ``self``.

        Returns:
            str: the absolute name.

def absolute_name(self):
        """Get the absolute name of ``self``.

        Returns:
            str: the absolute name.
        """
        if self.is_root() or self.parent.is_root():
            return utils.slugify(self.name)
        return ':'.join([self.parent.absolute_name, utils.slugify(self.name)])