anchor.diff:  
   in buildPythonPackage rec {
     pname = "mautrix-telegram";
  -  version = "0.8.2";
  -  disabled = pythonOlder "3.6";
  +  version = "0.9.0";
  +  disabled = pythonOlder "3.7";
   
     src = fetchFromGitHub {
       owner = "tulir";
       repo = pname;
       rev = "v${version}";
  -    sha256 = "0mhy9b933haz1bldkglvn81warjxdjdzgkviiv5k6fykghq473jf";
  +    sha256 = "1543ljjl3jg3ayid7ifi4bamqh4gq85pmlbs3m8i7phjbbm7g9dn";
     };
   
     postPatch = ''
       sed -i -e '/alembic>/d' requirements.txt
     '';
  +
  +  nativeBuildInputs = [
  +    pytestrunner
  +  ];
   
     propagatedBuildInputs = [
       Mako
  
positive.code:     ];
    });
  
    checkInputs = [
      pytest
      pytestrunner
      pytest-mock
      pytest-asyncio
    ];
  
negative.code:     sqlalchemy
      CommonMark
      ruamel_yaml
      python_magic
      telethon
      telethon-session-sqlalchemy
  