anchor.diff:  
   -include("pushy.hrl").
   -include_lib("pushy_common/include/pushy_metrics.hrl").
  +-include_lib("pushy_common/include/pushy_messaging.hrl").
   
   %% TODO : figure out where this really should come from
   -opaque dictionary() :: any().
  
positive.code:     addr_node_map_lookup_by_addr(AddrNodeMap, Node);
  addr_node_map_lookup_by_node({_, NodeToAddr}, Node) ->
      dict:fetch(Node, NodeToAddr).
  
  
  
negative.code:     pushy_messaging:send_message(CommandSocket, [Address | Packets]),
      State.
  
  get_key_for_method(rsa2048_sha1, #state{private_key = PrivateKey}, _EJson) ->
      {ok, PrivateKey};
  get_key_for_method(hmac_sha256, _State, EJson) ->
      NodeRef = get_node_ref(EJson),
      {hmac_sha256, Key} = pushy_key_manager:get_key(NodeRef),
      {ok, Key}.
  
  
  
  %%
  