anchor.diff:           trace_pid/1,
            track_timeline/1,
            enable_ets_call_tracing/1,
  +         enable_ets_table_call_tracing/2,
  +         disable_ets_table_call_tracing/1,
            disable_ets_call_tracing/1]).
   
   %% gen_server callbacks
  
positive.code:          terminate/2,
           code_change/3]).
  
  -record(state, {subscribers = [],
                  ref,
                  remote_pid,
  
negative.code:         {Ref, Proplist} when is_list(Proplist) ->
              %% assert all ets tables were cleared
              EtsTables = [spawn_, exit_, send_, send_self_, receive_, trace_,
                           timeline_, ets_func_, ets_traffic_],
              [{Key, true} = lists:keyfind(Key, 1, Proplist)
               || Key <- EtsTables],
  
  