anchor.diff:      {noreply, State#state{store=Store}};
   handle_info({backup, _From, _FromNode, Key, Value}, #state{store=Store0}=State) ->
       %% Write value locally.
  -    Store = dict:store(Key, Value, Store0),
  +    Store = write(Key, Value, Store0),
       lager:info("~p: node ~p storing updated value key ~p value ~p", [?MODULE, node(), Key, Value]),
   
       {noreply, State#state{store=Store}};
  
positive.code:             lager:info("~p: node ~p received read for key ~p and returning value ~p", [?MODULE, node(), Key, Value]),
              {reply, {ok, Value}, State};
          _ ->
              FromNode = partisan_peer_service_manager:myself(),
              forward_message(Primary, {forwarded_read, From, FromNode, Key}),
  
              %% Wait for acknowledgement that read was serviced before unblocking gen_server.
              receive
  
negative.code: %% @private
  handle_info({collaborate, From, FromNode, Key, Value}, #state{nodes=[_Primary, _Collaborator | Backups], store=Store0}=State) ->
      %% Write value locally.
      Store = write(Key, Value, Store0),
      lager:info("~p: node ~p storing updated value key ~p value ~p", [?MODULE, node(), Key, Value]),
  
      %% Send write acknowledgement.
  