code: def get_group(self, group_id):
      
  
      group = self.group_id_map.get(group_id)
  
      if group:
        return group
  
      self.logger.error('Group ID "%s" is not in datafile.' % group_id)
      self.error_handler.handle_error(exceptions.InvalidGroupException(enums.Errors.INVALID_GROUP_ID_ERROR))
      return None
docs: Get group for the provided group ID.
  
      Args:
        group_id: Group ID for which group is to be determined.
  
      Returns:
        Group corresponding to the provided group ID.