anchor.diff:  
   -behaviour(gen_component).
   
  --export([dump_node_states/0]).
  +-export([dump_node_states/0, kill_nodes/1]).
   
   -export([start_link/0, init/1, on/2]).
   
  
positive.code: 
  on(_, _State) ->
      unknown_event.
  
negative.code: on({get_cs_nodes, Pid}, ok) ->
      case cs_send:is_valid(Pid) of
          true ->
              Nodes = get_live_cs_nodes(),
              cs_send:send(Pid, {get_cs_nodes_response, Nodes});
          false ->
              ok
  