code: def get(self, list_id, month, **queryparams):
          
          self.list_id = list_id
          self.month = month
          return self._mc_client._get(url=self._build_path(list_id, 'growth-history', month), **queryparams)
docs: Get a summary of a specific list’s growth activity for a specific month and year.
  
          :param list_id: The unique id for the list.
          :type list_id: :py:class:`str`
          :param month: A specific month of list growth history.
          :type month: :py:class:`str`
          :param queryparams: The query string parameters
          queryparams['fields'] = []
          queryparams['exclude_fields'] = []