code: def _get_device_group(self, device):
          '''Get the device group through a device.
  
          :param device: bigip object -- device
          :returns: tm.cm.device_groups.device_group object
          '''
  
          return device.tm.cm.device_groups.device_group.load(
              name=self.name, partition=self.partition
          f _get_device_group(self, device):
          '''Get the device group through a device.
  
          :param device: bigip object -- device
          :returns: tm.cm.device_groups.device_group object
          '''
  
          return device.tm.cm.device_groups.device_group.load(
              name=self.name, partition=self.partition
          )
docs: Get the device group through a device.
  
          :param device: bigip object -- device
          :returns: tm.cm.device_groups.device_group object