anchor.diff:  
   buildPythonPackage rec {
     pname = "aiohomekit";
  -  version = "0.7.17";
  +  version = "0.7.20";
     format = "pyproject";
   
     disabled = pythonOlder "3.7";
  
positive.code: { lib
  , buildPythonPackage
  , commentjson
  , cryptography
  , fetchFromGitHub
  
negative.code:   ];
  
    propagatedBuildInputs = [
      chacha20poly1305-reuseable
      commentjson
      cryptography
      zeroconf
  