anchor.diff:    src = fetchFromGitHub {
       owner = "Paperspace";
       repo = pname;
  -    rev = "v${version}";
  -    sha256 = "19plkgwwfs6298vjplgsvhirixi3jbngq5y07x9c0fjxk39fa2dk";
  +    rev = "refs/tags/v${version}";
  +    hash = "sha256-swnl0phdOsBSP8AX/OySI/aYI9z60Ss3SsJox/mb9KY=";
     };
   
     nativeBuildInputs = [
  
positive.code:   ];
  
    postPatch = ''
      substituteInPlace pyproject.toml \
        --replace 'wheel = "^0.35.1"' 'wheel = "*"' \
        --replace 'prometheus-client = ">=0.8,<0.10"' 'prometheus-client = "*"'
    '';
  
    preCheck = ''
  
negative.code:     description = "Python utils and helpers library for Gradient";
      homepage = "https://github.com/Paperspace/gradient-utils";
      license = licenses.mit;
      maintainers = with maintainers; [ freezeboy ];
      platforms = platforms.unix;
    };
  }
  