anchor.diff:  
   buildPythonPackage rec {
     pname = "pytest-asyncio";
  -  version = "0.17.2";
  +  version = "0.18.0";
     format = "setuptools";
   
  -  disabled = pythonOlder "3.6";
  +  disabled = pythonOlder "3.7";
   
     src = fetchFromGitHub {
       owner = "pytest-dev";
       repo = pname;
       rev = "v${version}";
  -    sha256 = "sha256-4wDXvO6pDK0dQLnyfJTTa+GXf9Qtsi6ywYDUIdhkgGo=";
  +    hash = "sha256-PE66ogjfzj6cW3+UD5nZHSt6zg7b+j6Q4ACznE4j0j8=";
     };
   
     SETUPTOOLS_SCM_PRETEND_VERSION = version;
  
positive.code:   ];
  
    meta = with lib; {
      description = "library for testing asyncio code with pytest";
      homepage = "https://github.com/pytest-dev/pytest-asyncio";
      license = licenses.asl20;
      maintainers = with maintainers; [ ];
    };
  }
  
negative.code:   checkInputs = [
      flaky
      hypothesis
      flaky
      pytestCheckHook
    ];
  
  