anchor.diff:      gen_server:call(?MODULE, members_for_orchestration, infinity).
   
   
  -%% @doc Return myself.
  +%% @doc Return partisan:node().
   mynode() ->
       partisan:node().
   
  -%% @doc Return myself.
  +%% @doc Return partisan:node_spec().
   myself() ->
       partisan:node_spec().
   
  
positive.code:                                     PreInterpositionFuns);
                  true ->
                      %% Tracing.
                      WrappedOriginalMessage = {forward_message, mynode(), MessageClock, ServerRef, OriginalMessage},
                      WrappedMessage = {forward_message, mynode(), MessageClock, ServerRef, FullMessage},
  
                      ?LOG_DEBUG(
                          "should acknowledge message: ~p", [WrappedMessage]
  
negative.code:     Message = maps:fold(FoldFun, OriginalMessage, InterpositionFuns),
  
      %% Increment the clock.
      VClock = partisan_vclock:increment(partisan:node(), VClock0),
  
      %% Are we using causality?
      CausalLabel = maps:get(causal_label, Options, undefined),
  