anchor.diff:  
   buildDunePackage rec {
     pname = "torch";
  -  version = "0.9b";
  +  version = "0.10";
   
     minimumOCamlVersion = "4.07";
   
  
positive.code: { lib
  , buildDunePackage
  , fetchFromGitHub
  , cmdliner
  
negative.code: 
    preBuild = ''export LIBTORCH=${pytorch.dev}/'';
  
    doCheck = !stdenv.isAarch64;
    checkPhase = "dune runtest";
  
    meta = with lib; {
  