anchor.diff:  topkeys(Bucket) ->
       gen_server:call(server(Bucket), topkeys, ?TIMEOUT).
   
  +
  +-spec raw_stats(node(), bucket_name(), binary(), fun(), any()) -> {ok, any()} | {exception, any()} | {error, any()}.
  +raw_stats(Node, Bucket, SubStats, Fn, FnState) ->
  +    gen_server:call({ns_memcached:server(Bucket), Node},
  +                    {raw_stats, SubStats, Fn, FnState}).
   
   
   %%
  
positive.code:     {ok, #state{sock=Sock, bucket=Bucket}}.
  
  
  handle_call(backfilling, _From, State) ->
      End = <<":pending_backfill">>,
      ES = byte_size(End),
  
negative.code:          server/1,
           stats/1, stats/2, stats/3,
           topkeys/1,
           raw_stats/5,
           sync_bucket_config/1,
           flush/1]).
  
  