anchor.diff:  run(delete, KeyGen, _ValueGen, State) ->
       %% Pass on rw
       case riakc_pb_socket:delete(State#state.pid, State#state.bucket, KeyGen(),
  -                                [{rw, State#state.rw}]) of
  +                                [{rw, State#state.rw}], State#state.timeout_write) of
           ok ->
               {ok, State};
           {error, notfound} ->
  
positive.code:                  dw,
                   rw,
                   keylist_length,
                   preloaded_keys}).
  
  -define(ERLANG_MR,
          [{map, {modfun, riak_kv_mapreduce, map_object_value}, none, false},
  
negative.code: run(get, KeyGen, _ValueGen, State) ->
      Key = KeyGen(),
      case riakc_pb_socket:get(State#state.pid, State#state.bucket, Key,
                               [{r, State#state.r}], State#state.timeout_read) of
          {ok, _} ->
              {ok, State};
          {error, notfound} ->
  