anchor.diff:    # `make check`.
     doCheck = false;
   
  -  meta = with lib; {
  +  meta = with stdenv.lib; {
       description = "A fast, distributed, high performance gradient boosting (GBDT, GBRT, GBM or MART) framework";
       homepage = https://github.com/Microsoft/LightGBM;
       license = licenses.mit;
  -    maintainers = with lib.maintainers; [ teh costrouc ];
  +    maintainers = with maintainers; [ teh costrouc ];
     };
   }
  
positive.code:     cmake
    ];
  
    propagatedBuildInputs = [
      numpy
      scipy
  
negative.code: { stdenv
  , buildPythonPackage
  , fetchPypi
  , cmake
  , numpy
  , scipy
  , scikitlearn
  , llvmPackages ? null
  }:
  
  buildPythonPackage rec {
  