anchor.diff:      description = "Google Cloud Pub/Sub API client library";
       homepage = "https://pypi.org/project/google-cloud-pubsub";
       license = licenses.asl20;
  -    maintainers = [ maintainers.costrouc ];
  +    maintainers = with maintainers; [ SuperSandro2000 ];
     };
   }
  
positive.code: 
    src = fetchPypi {
      inherit pname version;
      sha256 = "bc50a60803f5c409a295ec0e31cdd4acc271611ce3f4963a072036bbfa5ccde5";
    };
  
    disabled = pythonOlder "3.6";
  
    checkInputs = [ google_cloud_testutils mock pytestCheckHook pytest-asyncio ];
    propagatedBuildInputs =
      [ grpc_google_iam_v1 google_api_core libcst proto-plus ];
  
    # prevent google directory from shadowing google imports
    # Tests in pubsub_v1 attempt to contact pubsub.googleapis.com
    preCheck = ''
      rm -r google
      rm -r tests/unit/pubsub_v1
    '';
  
  
negative.code: { stdenv
  , buildPythonPackage
  , fetchPypi
  , pytestCheckHook
  , google_api_core
  , google_cloud_testutils
  , grpc_google_iam_v1
  , libcst
  , mock
  , proto-plus
  , pytest-asyncio
  }:
  
  buildPythonPackage rec {
    pname = "google-cloud-pubsub";
  