anchor.diff:    meta = with lib; {
       description = "Library for Python to communicate with the Google Chromecast";
       homepage = "https://github.com/home-assistant-libs/pychromecast";
  +    changelog = "https://github.com/home-assistant-libs/pychromecast/releases/tag/${version}";
       license = licenses.mit;
       maintainers = with maintainers; [ abbradar ];
       platforms = platforms.unix;
  
positive.code: , buildPythonPackage
  , casttube
  , fetchPypi
  , isPy3k
  , protobuf
  , requests
  , zeroconf
  
negative.code:   version = "13.0.1";
    format = "setuptools";
  
    disabled = pythonOlder "3.7";
  
    src = fetchPypi {
      pname = "PyChromecast";
      inherit version;
      hash = "sha256-IDqvA3r7rKEnY6OpEZKd0lsKinse4A0BDTQ5vTGpglI=";
    };
  
    postPatch = ''
  