get information about the terms in the term list

        Parameters
        ----------

        Returns
        -------
        dict containing information to duplicate the term list

def info(self):
        """get information about the terms in the term list

        Parameters
        ----------

        Returns
        -------
        dict containing information to duplicate the term list
        """
        info = {'term_type': 'term_list', 'verbose': self.verbose}
        info.update({'terms':[term.info for term in self._terms]})
        return info