anchor.diff:  { lib
   , buildPythonPackage
   , fetchFromGitHub
  +, fetchpatch
   , async-timeout
   , docopt
   , pyserial
  
positive.code: buildPythonPackage rec {
    pname = "rflink";
    version = "0.0.58";
  
    src = fetchFromGitHub {
      owner = "aequitas";
  
negative.code:     rev = version;
      sha256 = "1zab55lsw419gg0jfrl69ap6128vbi3wdmg5z7qin65ijpjdhasc";
    };
  
    propagatedBuildInputs = [
      async-timeout
  