code: def get_group(self, group_id, depth=1):
          
          response = self._perform_request(
              '/um/groups/%s?depth=%s' % (group_id, str(depth)))
  
          return response
docs: Retrieves a single group by ID.
  
          :param      group_id: The unique ID of the group.
          :type       group_id: ``str``
  
          :param      depth: The depth of the response data.
          :type       depth: ``int``