anchor.diff:  
       LastSampleTStamp = case default_find(t, Samples2) of
                              [] -> 0;
  -                           [First | _Rest] -> First
  +                           List -> lists:last(List)
                          end,
   
       Samples3 = dict:store(ops, sum_stats_ops(Samples2), Samples2),
  
positive.code:         dict:to_list(TopKeys)),
      {ok, TopKeyList}.
  
  get_buckets_stats(PoolId, BucketIds, Params) ->
      [FirstStats | RestStats] =
          lists:map(fun(BucketId) ->
  
negative.code:                  deltas([10, 10, 11, 12, 12])),
      ok.
  
  sum_stats_values_test() ->
      ?assertEqual([], sum_stats_values([], [])),
      ?assertEqual([1,2], sum_stats_values([1,2],[])),
      ?assertEqual([1,2], sum_stats_values([],[1,2])),
      ?assertEqual([0,0,0,1,2,3,4], sum_stats_values([1,2,3,4],[0,0,0,0,0,0,0])),
      ?assertEqual([0,0,0,1,2,3,4], sum_stats_values([0,0,0,0,0,0,0],[1,2,3,4])),
      ?assertEqual([4,6], sum_stats_values([1,2],[3,4])),
      ?assertEqual([4,6], sum_stats_values([3,4],[1,2])),
      ?assertEqual([1,5,7], sum_stats_values([3,4],[1,2,3])),
      ?assertEqual([1,5], sum_stats_values([1,2],[3])),
      ?assertEqual([1,5], sum_stats_values([3],[1,2])).
  
  -endif.
  
  % too much typing to add this, and I'd rather not hide the response too much
  