anchor.diff:  % reporting to the monitor for manually-maintained rrd records
   -export([check_report/4]).
   
  --export([get_rrds/2]).
  +-export([get_rrds/2
  +         , get_rrd_keys/0
  +         , get_rrd_keys/1
  +        ]).
   
   -ifdef(with_export_type_support).
   -export_type([key/0]).
  
positive.code: -spec get_check_timeslots_interval() -> 10000.
  get_check_timeslots_interval() ->
      10 * 1000. % every 10s
  
negative.code:                   Value -> {Process, Key, Value}
                end || {Process, Key} = TableIndex <- TableIndexes],
      comm:send(SourcePid, {get_rrds_response, MyData}),
      State;
  
  on({get_rrd_keys, SourcePid}, {Table, _} = State) ->
      Keys = get_all_keys(Table),
      comm:send_local(SourcePid, {get_rrd_keys, Keys}),
      State;
  
  on({web_debug_info, Requestor}, {Table, _ApiTxReqList} = State) ->
  