anchor.diff:      pytestCheckHook
     ];
   
  +  disabledTests = [
  +    # assertion failure
  +    # E       assert ff:ff:ff:ff:ff:ff:ff:ff is None
  +    "test_startup_api_mode_config_fails"
  +  ];
  +
     meta = with lib; {
       description = "A library which communicates with XBee radios for zigpy";
       homepage = "https://github.com/zigpy/zigpy-xbee";
  
positive.code:     owner = "zigpy";
      repo = "zigpy-xbee";
      rev = version;
      sha256 = "Krdqb9bYKwUC2cdNppB2+tLwWjzmzIHhXnQ1KRduofU=";
    };
  
    buildInputs = [
  
negative.code: , pytest-asyncio
  , pytestCheckHook
  , pythonOlder
  , zigpy
  }:
  
  buildPythonPackage rec {
    pname = "zigpy-xbee";
    version = "0.14.0";
    # https://github.com/Martiusweb/asynctest/issues/152
    # broken by upstream python bug with asynctest and
    # is used exclusively by home-assistant with python 3.8
  