anchor.diff:  { lib
  +, async_generator
   , buildPythonPackage
   , pythonOlder
   , fetchFromGitHub
   , brotlicffi
   , certifi
   , charset-normalizer
  -, h2
   , httpcore
   , rfc3986
   , sniffio
  
positive.code:     brotlicffi
      certifi
      charset-normalizer
      h2
      httpcore
      rfc3986
      sniffio
    ];
  
    checkInputs = [
  
negative.code:     "tests/test_main.py"
    ];
  
    pythonImportsCheck = [
      "httpx"
    ];
  
    __darwinAllowLocalNetworking = true;
  
    meta = with lib; {
  