anchor.diff:  
     checkInputs = [
       aresponses
  +    asynctest
       pytest-asyncio
       pytestCheckHook
     ];
  
positive.code: { lib
  , aiohttp
  , aresponses
  , buildPythonPackage
  , fetchFromGitHub
  , poetry-core
  
negative.code:     owner = "klaasnicolaas";
      repo = "python-omnikinverter";
      rev = "v${version}";
      hash = "sha256-OQWk+ae+hSLLdH0uLVPauoNeQpXgxkvflXFyaiFe108=";
    };
  
    nativeBuildInputs = [
  