anchor.diff:    ];
   
     checkInputs = [
  -    pytest
  +    pytestCheckHook
     ];
  +
     pythonImportsCheck = [ "yamale" ];
   
     meta = with lib; {
  
positive.code:   pname = "yamale";
    version = "3.0.8";
  
    disabled = !isPy3k;
  
    src = fetchFromGitHub {
      owner = "23andMe";
  
negative.code: { lib
  , buildPythonPackage
  , fetchFromGitHub
  , pythonOlder
  , pytestCheckHook
  , pyyaml
  , ruamel_yaml
  }:
  