anchor.diff:    version = "0.7.5";
     format = "setuptools";
   
  -  disabled = pythonOlder "3.6";
  +  disabled = pythonOlder "3.7";
   
     src = fetchFromGitHub {
       owner = "romis2012";
  
positive.code:   ];
  
    passthru.optional-dependencies = {
      asyncio = [ async-timeout ];
      trio = [ trio ];
    };
  
    checkInputs = [
  
negative.code:   meta = with lib; {
      description = "Proxy (HTTP, SOCKS) transports for httpx";
      homepage = "https://github.com/romis2012/httpx-socks";
      changelog = "https://github.com/romis2012/httpx-socks/releases/tag/v${version}";
      license = licenses.asl20;
      maintainers = with maintainers; [ fab ];
    };
  