anchor.diff:  , nbconvert
   , jupyter
   , chainer
  +, parameterized
   , pytorch
   , mxnet
   , tensorflow
  
positive.code: 
  buildPythonPackage rec {
    pname = "einops";
    version = "0.3.2";
  
    src = fetchFromGitHub {
      owner = "arogozhnikov";
      repo = pname;
      rev = "v${version}";
      sha256 = "0ix094cfh6w4bvx6ymp5dpm35y9nkaibcn1y50g6kwdp4f0473y8";
    };
  
    checkInputs = [
  
negative.code:     jupyter
      # For backend tests
      chainer
      parameterized
      pytorch
      mxnet
      tensorflow
  