anchor.diff:      immutables
       motor
       msgpack
  +    orjson
       pytest-xdist
       pytestCheckHook
       pyyaml
  
positive.code:     owner = "python-attrs";
      repo = pname;
      rev = "v${version}";
      hash = "sha256-VbfQMMDO03eeUHAACxoX6a3DKmzoF9EfLuTpvaY6bWs=";
    };
  
    nativeBuildInputs = [
  
negative.code: , immutables
  , motor
  , msgpack
  , orjson
  , poetry-core
  , pytest-xdist
  , pytestCheckHook
  