anchor.diff:        owner = "tensorflow";
         repo = "tensorflow";
         rev = "v${version}";
  -      sha256 = "1dd5fgyiazyfy7y2iv4v42qnap51fr6dzwb26inrsj7aaas06j71";
  +      sha256 = "1lvmrqfnwzh24fl5rdkksiqfv2bn0ld5gvzq1z57rphfkf0zg996";
       };
   
       patches = [
  
positive.code:       (fetchpatch {
          url = "https://github.com/tensorflow/tensorflow/commit/75ea0b31477d6ba9e990e296bbbd8ca4e7eebadf.patch";
          sha256 = "1xp1icacig0xm0nmb05sbrf4nw4xbln9fhc308birrv8286zx7wv";
        })
  
        # see https://github.com/tensorflow/tensorflow/issues/40884
        (fetchpatch {
          url = "https://github.com/tensorflow/tensorflow/pull/41867/commits/65341f73d110bf173325768947343e1bb8f699fc.patch";
          sha256 = "18ykkycaag1pcarz53bz6ydxjlah92j4178qn58gcayx1fy7hvh3";
        })
      ];
  
  
negative.code: 
    tfFeature = x: if x then "1" else "0";
  
    version = "2.3.1";
    variant = if cudaSupport then "-gpu" else "";
    pname = "tensorflow${variant}";
  
  