anchor.diff:    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 ];
     };
  
positive.code:   version = "0.7.5";
    format = "setuptools";
  
    disabled = pythonOlder "3.6";
  
    src = fetchFromGitHub {
      owner = "romis2012";
  
negative.code:   ];
  
    passthru.optional-dependencies = {
      asyncio = [
        async-timeout
      ];
      trio = [
        trio
      ];
    };
  
    checkInputs = [
  