anchor.diff:      owner = "zigpy";
       repo = "zigpy-xbee";
       rev = version;
  -    sha256 = "Krdqb9bYKwUC2cdNppB2+tLwWjzmzIHhXnQ1KRduofU=";
  +    sha256 = "sha256-veAkaBHPYgVd3iwvnH/A2upYX4T/qXXNRcaysbRQvNI=";
     };
   
     buildInputs = [
  
positive.code: , pytest-asyncio
  , pytestCheckHook
  , pythonOlder
  , zigpy }:
  
  buildPythonPackage rec {
    pname = "zigpy-xbee";
    version = "0.13.0";
    # 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
  
negative.code:     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";
  