code: def get(self, list_id, merge_id):
          
          self.list_id = list_id
          self.merge_id = merge_id
          return self._mc_client._get(url=self._build_path(list_id, 'merge-fields', merge_id))
docs: Get information about a specific merge field in a list.
  
          :param list_id: The unique id for the list.
          :type list_id: :py:class:`str`
          :param merge_id: The id for the merge field.
          :type merge_id: :py:class:`str`