Exclude tests in class

[gragib]

Let's say I have a file named JsonGenerator.py with the following content:

class JsonGenerator(Test):
    def test(self):
        ...

    @property
    def testrail_props(self):
        ...

How do I run JsonGenerator.py:JsonGenerator.test? Any attempt causes something like this (redacted):

# slash run JsonGenerator.py:JsonGenerator.test
Traceback (most recent call last):
  File "C:\Python\39\lib\runpy.py", line 197, in _run_module_as_main
    return _run_code(code, main_globals, None,
  File "C:\Python\39\lib\runpy.py", line 87, in _run_code
    exec(code, run_globals)
  File ".env\Scripts\slash.EXE\__main__.py", line 7, in <module>
  File ".env\lib\site-packages\slash\frontend\main.py", line 71, in main_entry_point
    sys.exit(main())
  File ".env\lib\site-packages\slash\frontend\main.py", line 47, in main
    returned = func(args)
  File ".env\lib\site-packages\slash\frontend\slash_list.py", line 70, in slash_list
    runnables = loader.get_runnables(itertools.chain(parsed_args.paths, iter_suite_file_paths(parsed_args.suite_files)))
  File ".env\lib\site-packages\slash\loader.py", line 57, in get_runnables
    sources = self._generate_repeats(self._generate_test_sources(paths))
  File ".env\lib\site-packages\slash\loader.py", line 82, in _generate_repeats
    for test in tests:
  File ".env\lib\site-packages\slash\loader.py", line 124, in <genexpr>
    return (t for t in iterator if matcher is None or matcher.matches(t.__slash__))
  File ".env\lib\site-packages\slash\loader.py", line 124, in <genexpr>
    return (t for t in iterator if matcher is None or matcher.matches(t.__slash__))
  File ".env\lib\site-packages\slash\loader.py", line 146, in _iter_test_address
    tests = list(self._iter_path(path))
  File ".env\lib\site-packages\slash\loader.py", line 209, in _iter_paths
    for runnable in self._iter_runnable_tests_in_module(file_path, module):
  File ".env\lib\site-packages\slash\loader.py", line 252, in _iter_runnable_tests_in_module
    for test in factory.generate_tests(fixture_store=context.session.fixture_store):
  File ".env\lib\site-packages\slash\core\runnable_test_factory.py", line 55, in generate_tests
    for test in self._generate_tests(fixture_store):
  File ".env\lib\site-packages\slash\core\test.py", line 31, in _generate_tests
    for fixture_variation in self._iter_parametrization_variations(test_method_name, fixture_store):
  File ".env\lib\site-packages\slash\core\test.py", line 43, in _iter_parametrization_variations
    return fixture_store.iter_parametrization_variations(methods=itertools.chain(
  File ".env\lib\site-packages\slash\core\fixtures\fixture_store.py", line 317, in iter_parametrization_variations
    variation_factory.add_needed_fixtures_from_method(method)
  File ".env\lib\site-packages\slash\core\variation_factory.py", line 34, in add_needed_fixtures_from_method
    self._add_needed_fixtures_from_function(method)
  File ".env\lib\site-packages\slash\core\variation_factory.py", line 49, in _add_needed_fixtures_from_function
    args = get_arguments(func)
  File ".env\lib\site-packages\slash\utils\python.py", line 79, in get_arguments
    returned = [FunctionArgument.from_parameter(p) for name, p in inspect.signature(func).parameters.items()] # pylint: disable=no-member
  File "C:\Python\39\lib\inspect.py", line 3113, in signature
    return Signature.from_callable(obj, follow_wrapped=follow_wrapped)
  File "C:\Python\39\lib\inspect.py", line 2862, in from_callable
    return _signature_from_callable(obj, sigcls=cls,
  File "C:\Python\39\lib\inspect.py", line 2261, in _signature_from_callable
    raise TypeError('{!r} is not a callable object'.format(obj))

Renaming testrail_props to _testrail_props fixes the issue, but that's an undesirable solution for reasons I can't elaborate on in a public forum.