anchor.diff:  
   -include_lib("common_test/include/ct.hrl").
   
  --compile(export_all).
  +-compile([export_all, nowarn_export_all]).
   -behaviour(gen_statem).
   
   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  
positive.code: 	%% Abusing the internal format of From...
  	#{init =>
  	      fun () ->
  		      {ok, start, undefined}
  	      end,
  	  start =>
  	      fun ({call,_} = Call, Req, undefined) ->
  		      {next_state, state1, undefined,
  		       [{next_event,internal,1},
  
negative.code: %%
  %% %CopyrightBegin%
  %%
  %% Copyright Ericsson AB 2016-2018. All Rights Reserved.
  %%
  %% Licensed under the Apache License, Version 2.0 (the "License");
  %% you may not use this file except in compliance with the License.
  