anchor.diff:                        {eligible,<<"eligible">>,false},
                         {exclude_me,<<"exclude_me">>,false},
                         {disclose_me,<<"disclose_me">>,false},
  -                      {publisher,<<"publisher">>,false},
  -                      {caller,<<"caller">>,false},
                         {receive_progress,<<"receive_progress">>,false},
                         {progress,<<"progress">>,false}
                         ]).
  
positive.code:                       {dealer,<<"dealer">>,true},
                        {publisher,<<"publisher">>,true},
                        {subscriber,<<"subscriber">>,true},
                        {features,<<"features">>,true},
                        {subscriber_blackwhite_listing,<<"subscriber_blackwhite_listing">>,false},
                        {publisher_exclusion,<<"publisher_exclusion">>,false},
  
negative.code:   M = [?HELLO,<<"realm1">>,[{}]],
    S = serialize(M,json),
    D = deserialize(S,json),
    D = {[{hello,<<"realm1">>,[]}],<<"">>}.
  
  roundtrip_test() ->
  
    Messages = [
                {hello,<<"realm1">>,[]}
                ],
  
  
  