docs: def group_and_bridge(kwargs):
      """
      Given kwargs from the view (with view specific keys popped) pull out the
      bridge and fetch group from database.
      """
  
      bridge = kwargs.pop("bridge", None)
  
      if bridge:
          try:
              group = bridge.get_group(**kwargs)
          except ObjectDoesNotExist:
              raise Http404
      else:
          group = None
  
      return group, bridge