anchor.diff:    SETUPTOOLS_SCM_PRETEND_VERSION = version;
   
     nativeBuildInputs = [
  +    setuptools-rust
       setuptools-scm
  -  ];
  +    rustPlatform.cargoSetupHook
  +  ] ++ (with rustPlatform; [ rust.cargo rust.rustc ]);
   
     propagatedBuildInputs = [
       hypothesis
  
positive.code:   checkInputs = [
      black
      isort
      pytest
    ];
  
    preCheck = ''
  
negative.code: 
  buildPythonPackage rec {
    pname = "libcst";
    version = "0.4.1";
    format = "pyproject";
  
    disabled = pythonOlder "3.6";
  
  