anchor.diff:  
   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,
  
positive.code:          get_user_by_name/1,
           get_user_by_name/2,
           create_user/2,
           verify_creation/1,
           delete_user/2,
           get_usp/2,
  
negative.code:                                    escalus_compat:backtrace(0)]),
              FUNCTION_NAME([], Username)).
  
  ?DEFINE_ONE_ARG(delete_user).
  ?DEFINE_ONE_ARG(get_usp).
  ?DEFINE_ONE_ARG(get_jid).
  