anchor.diff:  
   buildPythonPackage rec {
     pname = "ttp";
  -  version = "0.8.4";
  -  format = "setuptools";
  +  version = "0.9.1";
  +  format = "pyproject";
   
     src = fetchFromGitHub {
       owner = "dmulyalin";
       repo = pname;
  -    rev = version;
  -    hash = "sha256-vuKlddqm8KirqAJyvBPfRb5Nw9zo4Fl1bwbfVMhmH9g=";
  +    rev = "refs/tags/${version}";
  +    hash = "sha256-FhuIYXktcNnOVX+KU5cDOd2Qk7AcWaSKvfB/BZYpsZo=";
     };
  +
  +  nativeBuildInputs = [
  +    poetry-core
  +  ];
   
     propagatedBuildInputs = [
       # https://github.com/dmulyalin/ttp/blob/master/docs/source/Installation.rst#additional-dependencies
  
positive.code:     "test_child_group_do_not_start_if_no_parent_started"
      # Assertion Error
      "test_in_threads_parsing"
    ];
  
    pytestFlagsArray = [
  
negative.code: , netmiko
  , openpyxl
  , pytestCheckHook
  , poetry-core
  , pyyaml
  , tabulate
  , ttp-templates
  