anchor.diff:                                     escalus_compat:backtrace(0)]),
               FUNCTION_NAME([], Username)).
   
  -?DEFINE_ONE_ARG(create_user).
   ?DEFINE_ONE_ARG(delete_user).
   ?DEFINE_ONE_ARG(get_usp).
   ?DEFINE_ONE_ARG(get_jid).
  
positive.code:         ]).
  
  %% Deprecated API
  -export([create_user/1,
           delete_user/1,
           get_usp/1,
           get_jid/1,
           get_username/1,
  
negative.code: 
  create_user(Config, {_Name, UserSpec}) ->
      ClientProps = get_options(Config, UserSpec),
      create_user(ClientProps).
  
  create_user(ClientProps) ->
      {ok, Conn, ClientProps, _} = escalus_connection:start(ClientProps,
                                                            [start_stream,
                                                             stream_features,
  