anchor.diff:  , immutables
   , motor
   , msgpack
  +, orjson
   , poetry-core
   , pytest-xdist
   , pytestCheckHook
  
positive.code:     immutables
      motor
      msgpack
      pytest-xdist
      pytestCheckHook
      pyyaml
  
negative.code:     owner = "python-attrs";
      repo = pname;
      rev = "v${version}";
      hash = "sha256-C8uIsewpgJfB1yYckWTwF5K32+2AAOrxFKB9I18RENg=";
    };
  
    nativeBuildInputs = [
  