anchor.diff:          undefined -> ok;
           File -> file:write(File, Packet)
       end,
  -    ok = gen_tcp:send(State#state.upstream, Packet),
  +    State#state.upstream_sender ! Packet,
       State.
   
   
  
positive.code:      },
      erlang:process_flag(trap_exit, true),
      gen_server:enter_loop(?MODULE, [], maybe_setup_dumping(State, Args)).
  
  -spec maybe_setup_dumping(#state{}, term()) -> #state{}.
  maybe_setup_dumping(State, Args) ->
  
negative.code: -record(state, {bad_vbucket_count = 0 :: non_neg_integer(),
                  upstream :: port(),
                  downstream :: port(),
                  upstream_sender :: pid(),
                  upbuf = <<>> :: binary(),
                  downbuf = <<>> :: binary(),
                  vbuckets,
  