anchor.diff:  
   -define(DEFAULT_KEEP_ALIVE_INTERVAL, 120*1000). % From proto. spec.
   -define(MAX_REQUESTS, 1024). % Maximal number of requests a peer may make.
  +
   %%====================================================================
   %% API
   %%====================================================================
  
positive.code: 
  -behaviour(gen_server).
  
  %% API
  
  %% Apart from standard gen_server things, the main idea of this module is
  %% to serve as a mediator for the peer in the send direction. Precisely,
  
negative.code: 
  terminate(_Reason, _S) ->
      ok.
  