anchor.diff:                      Acc0,
                       true)
               after
  -                couch_db_update_notifier:stop(Notify),
  +                couch_event:stop_listener(Listener),
                   get_rest_db_updated(ok) % clean out any remaining update messages
               end
           end;
  
positive.code:             end_sending_changes(Callback, UserAcc3, LastSeq, Feed)
          end
      end.
  
  get_callback_acc({Callback, _UserAcc} = Pair) when is_function(Callback, 3) ->
      Pair;
  
negative.code:     wait_db_updated/3,
      get_rest_db_updated/1,
      configure_filter/4,
      filter/3,
      handle_db_event/3
  ]).
  
  -export([changes_enumerator/2]).
  