anchor.diff:      marshmallow
       pendulum
       protobuf
  +  ] ++ lib.optionals (pythonOlder "3.8") [
  +    importlib-metadata
     ];
   
     # No tests
     doCheck = false;
  -
  -  disabled = pythonOlder "3.6";
  +  pythonImportsCheck = [ "google_music_proto" ];
   
     meta = with lib; {
  -    homepage = https://github.com/thebigmunch/google-music-proto;
  +    homepage = "https://github.com/thebigmunch/google-music-proto";
       description = "Sans-I/O wrapper of Google Music API calls";
       license = licenses.mit;
       maintainers = with maintainers; [ jakewaksbaum ];
  
positive.code: 
  buildPythonPackage rec {
    pname = "google-music-proto";
    version = "2.5.1";
  
    src = fetchPypi {
      inherit pname version;
      sha256 = "94cd205b3cb0d9e36f3724ace259d4c6de04db97e095577a26a5cfa5e35844c6";
    };
  
    propagatedBuildInputs = [
      attrs
  
negative.code: { lib, buildPythonPackage, fetchPypi, pythonOlder
  , attrs
  , audio-metadata
  , importlib-metadata
  , marshmallow
  , pendulum
  , protobuf
  