anchor.diff:           filter/2,
            collect/0, collect/1, collect/2,
            results/0]).
  --export([log_get_fsm/0,
  -         log_put_fsm/0]).
  --export([test_get/0,
  -         test_put/0,
  -         test_get_put/0,
  -         test_all_events/1]).
  +-export([test_all_events/1]).
   
  --export([all_events/1, get_fsm_events/1]).
  +-export([all_events/1]).
   
   %% gen_server callbacks
   -export([init/1, handle_call/3, handle_cast/2, handle_info/2,
  
positive.code: -module(riak_core_tracer).
  
  -behaviour(gen_server).
  -include_lib("riak_kv/include/riak_kv_vnode.hrl").
  
  %% API
  -export([start_link/0,
  
negative.code: 
  all_events({trace, Pid, call, {M,F,A}}) ->
      [{node(Pid), {M,F,A}}].
  
  test_all_events(Ms) ->
      riak_core_tracer:start_link(),
  