anchor.diff:  
       % request approximated ring size
       comm:send_local(pid_groups:get_my(gossip), {get_values_best, self()}),
  +    %% comm:send_local(pid_groups:get_my(gossip2), {get_values_best, {gossip_load, default}, self()}),
   
       update_entries(Neighbors, add_source_entry(nodelist:node(Neighbors), #rt_t{})).
   
  
positive.code: 
      learn_on_forward(Issuer),
      Msg;
      
  wrap_message(_Key, {'$wrapped', Issuer, _} = Msg, _State, _) ->
      learn_on_forward(Issuer),
      Msg.
  
negative.code:         , num_active_learning_lookups = 0 :: non_neg_integer()
          , nodes = gb_trees:empty() :: gb_tree()
          , nodes_in_ring = unknown :: unknown | gossip_state:size()
          %% , nodes_in_ring = unknown :: Size :: unknown | float()
      }).
  
  -type(rt_t() :: #rt_t{}).
  