anchor.diff:  -endif.
   
   % external API with transparent time handling
  --export([create/3, create_timed/4,
  +-export([create/3,
            add_now/2, check_timeslot_now/1,
            merge/2,
            dump/1, dump_with/2, dump_with/3]).
  
positive.code: 
  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  %
  % Internal API (allows to specify timestamps explicitly)
  %
  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  %@doc StepSize in milliseconds
  
negative.code:     rrd().
  create(SlotLength, Count, Type) ->
      create(SlotLength, Count, Type, os:timestamp()).
  
  % @doc Note: gauge, counter and timing types accept only number() as value, event
  %      accepts any value.
  