anchor.diff: -{ lib, buildPythonPackage, fetchPypi
  -, grpc_google_iam_v1, google_api_core, libcst, proto-plus
  -, pytest, mock
  +{ lib
  +, buildPythonPackage
  +, fetchPypi
  +, google_api_core
  +, grpc_google_iam_v1
  +, libcst
  +, mock
  +, proto-plus
  +, pytestCheckHook
  +, pytest-asyncio
   }:
   
   buildPythonPackage rec {
  
positive.code: 
    checkInputs = [
      mock
      pytest
    ];
    checkPhase = ''
      pytest
    '';
  
    meta = with lib; {
      description = "Secret Manager API: Stores, manages, and secures access to application secrets";
      homepage = "https://github.com/GoogleCloudPlatform/google-cloud-python";
      license = licenses.asl20;
      maintainers = with maintainers; [ siriobalmelli ];
    };
  }
  
negative.code: 
    src = fetchPypi {
      inherit pname version;
      sha256 = "0c2w8ny3n84faq1mq86f16lzqgqbk1977q2f5qxn5a5ccj8v821g";
    };
  
    propagatedBuildInputs = [
  