anchor.diff:  prepare(Timestamp, Values) ->
       [
           {timestamp, Timestamp},
  -        {values, Values}
  +        {values, lists:reverse(Values)}
       ].
   
   %%%===================================================================
  
positive.code: %% This function returns timestamps of previous import and update scans.
  %% It takes into consideration whether it is a FirstRun (first after
  %% start/restart of provider).
  %%
  %% @end
  %%-------------------------------------------------------------------
  -spec get_previous_sync_timestamps(storage_sync_monitoring(),
  
negative.code: %%-------------------------------------------------------------------
  -spec ensure_created(od_space:id(), storage:id()) -> {ok, doc()} | {error, term()}.
  ensure_created(SpaceId, StorageId) ->
      case datastore_model:exists(?CTX, id(SpaceId, StorageId)) of
          {ok, true} ->
              ok;
          {ok, false} ->
              {ok, _} = datastore_model:create(?CTX, new_doc(SpaceId, StorageId)),
              ok;
          Error  ->
              ?error("Failed to check if storage_sync_monitoring document for space ~p and storage ~p exists due to ~p",
                  [SpaceId, StorageId, Error])
      end.
  
  %%-------------------------------------------------------------------
  %% @doc
  