anchor.diff:      protobuf
       cryptography
       netifaces
  +    zeroconf
  +    pytestCheckHook
     ];
   
     checkInputs = [
  
positive.code: { stdenv, buildPythonPackage, fetchPypi
  , aiohttp
  , aiozeroconf
  , asynctest
  
negative.code: , pytest-asyncio
  , pytestrunner
  , srptools
  , zeroconf
  , fetchFromGitHub
  , pytestCheckHook
  }:
  
  buildPythonPackage rec {
    pname = "pyatv";
    version = "v0.7.4";
  
    src = fetchFromGitHub {
      owner = "postlund";
      repo = pname;
      rev = version;
      sha256 = "17gsamn4aibsx4w50r9dwr5kr9anc7dd0f0dvmdl717rkgh13zyi";
    };
  
    nativeBuildInputs = [ pytestrunner];
  