anchor.diff:    propagatedBuildInputs = [
       cmake-format
       pygls
  -    pyparsing
     ];
   
     checkInputs = [
  
positive.code:     ./use-latest-pygls.patch
    ];
  
    postPatch = ''
      substituteInPlace pyproject.toml \
        --replace 'pyparsing = "^2.4"' 'pyparsing = "^3.0.6"'
    '';
  
    nativeBuildInputs = [
      poetry
    ];
  
negative.code: , poetry
  , cmake-format
  , pygls
  , cmake
  , pytest-datadir
  , pytestCheckHook
  