anchor.diff:    version = "0.5.5";
     format = "pyproject";
   
  -  disabled = pythonOlder "3.8";
  +  disabled = pythonOlder "3.9";
   
     src = fetchFromGitHub {
       owner = "liudger";
       repo = "python-bsblan";
       rev = "v${version}";
  -    sha256 = "sha256-kq4cML7D9XC/QRPjGfaWcs0H78OOc2IXGua7qJpWYOQ=";
  +    hash = "sha256-kq4cML7D9XC/QRPjGfaWcs0H78OOc2IXGua7qJpWYOQ=";
     };
   
     nativeBuildInputs = [
  
positive.code: 
    propagatedBuildInputs = [
      aiohttp
      attrs
      cattrs
      pydantic
      yarl
    ];
  
    checkInputs = [
      aresponses
      coverage
      mypy
      pytest-asyncio
      pytest-cov
      pytest-mock
      pytestCheckHook
    ];
  
    pythonImportsCheck = [
      "bsblan"
  
negative.code: { lib
  , aiohttp
  , aresponses
  , buildPythonPackage
  , fetchFromGitHub
  , mypy
  , packaging
  , poetry-core
  , pydantic
  , pytest-asyncio
  , pytest-mock
  , pytestCheckHook
  , pythonOlder
  , yarl
  }:
  
  