anchor.diff:      end.
   
   -spec metrics(mfile()) ->
  -                    btrie:btrie().
  +                     btrie:btrie().
   metrics(#mfile{index = Index}) ->
       Index.
   
  
positive.code: 
  %%--------------------------------------------------------------------
  %% @doc
  %% 
  %% @end
  %%--------------------------------------------------------------------
  -spec fold(file:filename_all() | mfile(), pos_integer(), fold_fun(), pos_integer(), term()) -> term().
  
negative.code:     ReadIdx = read_idx(File),
      case ReadIdx of
          {O, S, Idx, Next} when Offset =:= O,
                                 Size =:= S ->
              case file:open(File ++ ".mstore", FileOpts) of
                  {ok, F} ->
                      MF = #mfile{index=Idx, name=File, file=F, offset=Offset,
  